KR100786560B1 - High speed dispenser head in an air damping type - Google Patents

Abstract

The present invention is a dot-type resin solution of an adhesive type such as epoxy to fix a component such as a chip or an IC on a printed circuit board (PCB) used in electronic products, communication devices, and other similar electrical products. A dispenser head for dispensing.

The present invention uses a single-acting cylinder type of simple structure and the lifting operation of the dotting rod is directly connected to the driving source to implement a high-speed dispensing operation, and at the same time to implement the air damping of the lowering operation according to the dispensing, needle and a certain interval Compression pumping in the separated state minimizes noise and prevents damage to the needle, extending its lifespan, and allowing high-speed dispenser heads of the air damping type that maximize the convenience of maintenance due to the separation and cleaning of the needle parts. In providing.

The object of the present invention is by the rotation of the drive cam 130 of the servo motor 100, the sliding roll 520 is elevated by the cam sliding dotting rod 540 assembled at the bottom syringe 410 inside the needle part. ) Is achieved by directly driving the lifting and lowering operation of the compression pump in the expansion needle hole 322 formed on the upper part of the needle 320 to enable a high speed dispensing operation.

 Drive connection means, cylinder chamber, piston, lifting linkage means, dotting rod, drive cam

Description

High speed dispenser head of air damping type {HIGH SPEED DISPENSER HEAD IN AN AIR DAMPING TYPE}

1 is a perspective view of a dispenser head of the present invention,

2 is an exploded perspective view of a component member of the present invention;

3 is a cross-sectional view of the present invention,

Figure 4 is an enlarged view of the "F" portion of Figure 3,

5 is a side view of FIG. 4;

Figure 6 is an enlarged view of the "G" portion of Figure 3,

Figure 7 is an enlarged view of the "H" portion of Figure 3,

8 to 10 is an operation diagram showing the operation of the present invention,

8 is an operation diagram in which the dotting rod as a result of supplying compressed air rises to a position where the needle is opened;

9 is an operation of dispensing the resin by the lifting operation of the dotting rod by the drive of the servomotor,

10 is an operation diagram in which the dotting rod lowers the needle to the closed position by blocking the compressed air.

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

100: servo motor 130: drive cam

200: body 210: drive connecting means

220: cylinder chamber 230: piston

300: dispensing needle means 310: housing

320: needle 330: fix bolt

400: resin solution supply means 410: syringe

500: lifting linkage means 510: roller bracket

515: connecting bolt 520: sliding roll

530: rod bracket 540: dotting rod

550: Connecting bracket 560: L.M guide

600: blocking force imparting means (compression spring)

The present invention is a dot-type resin solution of an adhesive type such as epoxy to fix a component such as a chip or an IC on a printed circuit board (PCB) used in electronic products, communication devices, and other similar electrical products. The present invention relates to a dispenser head for dispensing, in particular, a single-acting cylinder type having a simple structure, which realizes high-speed dispensing operation at a predetermined distance from the needle at the same time as the lifting operation of the dotting rod and the air damping according to the dispensing. The present invention relates to a high-speed dispenser head of an air damping type that minimizes noise and prevents damage to a needle, thereby extending its lifespan, and providing separate cleaning of a needle part to maximize maintenance ease and convenience.

Generally, dispensing viscous solutions (resins) such as epoxy resins for mounting surface-mount parts (chips, ICs) on printed circuit boards (PCBs), or semiconductor devices Resin coating devices (dispensers) are commercially available in various technologies in the process of underfilling the flip chip by applying and encapsulating the circumference of the chip to protect against the chip.

Various methods have been tried in the conventional method of such a dispenser, but a representative example may be an injection pressure of a pump method or a method using a vacuum.

In the present invention, the dispenser head using the pump method, which is the former method, belongs to the scope of the present invention.

On the other hand, the high speed chip mounter has been developed and commercialized as a surface mounter of 65,000 chips / hour or more due to the high speed of industrial technology.In order to meet the high speed chip mounter, the dispenser head, a core technology of the dispenser device, responds to high speed and precision. It is required to have.

Conventionally, various dispenser heads have been disclosed to meet such demands, but in the process of injecting and discharging resin into the discharge needle hole of the needle by high speed repetitive operation, the end of the dotting rod and the needle hole make noise There was a problem that the reliability of the large, dotting rod for injecting the resin and the needle, such as the vulnerable needle is broken by repeated impact of failure to guarantee the life.

In addition, the conventional pump type dispenser head needs to be cleaned and used according to the replacement and reuse of resin types according to the overall disadvantages and the purpose of work by using a large number of components for the purpose of high speed dispensing operation. It was also very difficult to separate.

The present invention has been researched and developed to effectively solve the disadvantages of the prior art as described above,

An object of the present invention is to provide a simple structure of the air damping type to implement a high-speed dispensing operation by applying a direct drive to the dotting rod is elevated by the drive of the drive source to discharge the resin solution introduced into the needle part It is to provide a high speed dispenser head.

An object of the present invention is to apply a single-acting cylinder means to transfer power to the drive source, the lifting operation of the dotting rod according to the dispensing is provided with a damping function by the air inside the single-acting cylinder, the dotting rod at the top of the discharge needle hole of the needle It is discharged by compressing the resin solution at a certain interval away, so there is no damage to the needle even in long-term use, and the life is guaranteed. The air damping type ensures the reliability of the product by minimizing the noise by the smooth operation of lifting and lowering of the dotting rod. To provide a high speed dispenser head.

An object of the present invention is to dispense the resin solution by discontinuity by suction of the resin solution formed at the end of the needle at the time when the fluidity is not finished by generating a negative pressure inside the needle by the suction function in the ascending stage of the dotting rod after the discharge of the resin solution The present invention provides an air damping type high speed dispenser head that provides a constant flow rate by eliminating the tail of a resin solution.

An object of the present invention is to provide a high-speed dispenser head of the air damping type is easy to assemble and detach the needle parts that need to be frequently used in the process of use, easy to use and separated.

An object of the present invention is to provide a high-speed dispenser head of the air damping type to ensure that the lifting operation of the dotting rod is guided by the L.M guide to ensure the precision of the operation.

The above object of the present invention, by the rotation of the drive cam of the servo motor, the resin solution is supplied to the expansion needle hole of the needle that the sliding rod is supplied directly from the syringe in the interior of the needle part by the direct drive by the cam sliding. High speed dotting discharge is achieved by compression pumping to enable high speed dispensing operations.

In addition, the sliding roll is connected to the lifting operation of the piston by the operation of the single-actuator cylinder provided in one part of the body to allow the transmission and removal of the power by the sliding / release of the drive cam, the sliding roll is raised The rising distance sliding to the driving cam is larger than the height distance of the extension needle hole of the needle, so that the lifting operation of the dotting rod is compressed and pumped at a predetermined distance from the upper portion of the discharge needle hole of the needle, thereby causing noise due to the impact of the needle. It is achieved by allowing a damping function to be implemented by the compression lowering of the air supplied to the inside of the single-acting cylinder in accordance with the lowering of the dotting rod as well as the lifetime is guaranteed.

In addition, the needle part and the dotting rod are achieved by being easily separated in the horizontal direction by releasing the fixed bolt on one side of the body.

In addition, the dotting rod is forcibly lowered by stopping the air supply of the single-acting cylinder to be in close contact with the upper end of the discharge needle hole of the needle to achieve a means for preventing the resin solution from flowing out.

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

1 is a perspective view showing the appearance of the present invention, Figure 2 is an exploded perspective view showing an exploded view of the constituent members of the present invention, Figure 3 is a cross-sectional view of the assembled state of the present invention,

The dispenser head of the present invention is a servo motor 100 which is a driving source, a body 200 assembled to a transfer means such as a robot unit which is assembled by the servo motor and is variable along an XYZ axis, and a distribution needle means configured to assemble the body. 300 and a resin solution supply means 400 for compressing the resin solution filled in the syringe 410 into the distribution needle means at a constant pressure and supplying the resin solution through the connection line 410.

The servo motor 100 is assembled and fixed to the motor bracket 120 assembled with bolts (B / T) to a part of the body 200 with bolts (B / T), and the drive cam 110 to the drive shaft 110. (130) were axially coupled and assembled and fixed with bolts (B / T).

4 and 5, the drive cam 120 is formed on the outer circumferential surface of the opposite arc curved section 121 and the cam section is formed between the horizontal section 122 therebetween.

Accordingly, the long axis a between the curved sections 121 and the short axis b between the horizontal sections 122 have a constant distance difference Db, and the lifting and lowering interlocking means 500 which is described later by this distance difference is elevated. The distance is determined.

Referring to the enlarged view of the excerpt of FIG. 6, the body 200 has a piston 230 installed therein by passing through the cylinder chamber 220 through which the air port 221 penetrates in a vertical direction. Drive connection means 210 is provided on the upper and lower portions of the cylinder chamber 220 by the upper and lower covers 240 and 250 by bolts B / T.

In this case, the upper cover 240 has a center penetrated so that the rod portion of the upper small diameter of the piston 230 can be lifted, and the piston 230 and the lower cover 250 are dug into the respective outer peripheral surface O-rings 235 and 255 are assembled in the O-ring grooves so that the cylinder chamber 220 therebetween is kept airtight.

The drive connecting means 210 is such that the piston 230 is raised by the compressed air supplied through the compressed air control means 700, such as a conventional compressor connected to the air port 221 of the cylinder chamber 220. It is.

The upward movement of the piston 230 is to give a vertical lifting force of the lifting interlocking means 500 connected thereto.

The elevating interlocking means 500 is connected to a screw groove 231 formed in the center of the piston 230 through a vertically penetrated hole, and a portion thereof is connected by screwing the connecting bolt 515, and is standing in the other upper portion. A roller bracket 510 which is axially coupled to the through-hole of the protruding piece 511 protruding into a sliding roller 520 assembled with the cam section of the driving cam 130 of the servomotor 100 and ascending and descending. The rod bracket 530, which is assembled with a detachable material, has a rod bracket 530 of pumping a resin solution filled from the resin solution supply means 400 to the dispensing needle means 300. (B / T) was assembled by the connection bracket 550 assembled in the vertical direction.

At this time, the connecting bolt 515 compresses the washer 512 and the washer in the lower portion and the upper portion of the vertically penetrated hole of the roller bracket 510 to firmly bond with the piston 230 (513). ) Is assembled by tightening the screws.

The sliding roll 520 axially coupled to the protruding piece 511 may include the shaft bolt 522 of the bearing 521 sliding on the outer circumferential surface of the driving cam 130 to pass through the through hole of the protruding piece 511. It is assembled by screwing the nut 523 through.

In addition, the rod bracket 530 has a plurality of bending pieces having a stepped portion inwardly bent inwardly at a portion of the lower portion protrudes at a predetermined interval apart, and the upper portion of the assembly hole 536 is extended and opened in the lower and horizontal directions The dotting rod 540 is assembled to the assembly protrusion 535 having a slide in the horizontal direction.

That is, the dotting rod 540 is provided with a compression needle rod 542 having a small diameter at the bottom, and has an expansion head 541 protruding in the form of a flange at the top of the assembling protrusion 535 The expansion head 541 slides into and out of the assembly hole 536 in the horizontal direction.

In addition, the connection bracket 550 of the body 200 and the lifting interlocking means 500 is connected to the L.M guide 560 to provide precise guidance of the lifting operation of the lifting interlocking means 500.

The LM guide 560 is assembled with a guide rail 561 fastened to the body 200 with bolts B / T and bolts B / T to the connecting bracket 550 to move up and down. The guide block 562 is assembled into a configuration.

Referring to the enlarged excerpt of FIG. 7, the distribution needle means 300 is a solution passage 311 for receiving a predetermined length of the upper side at the tip of the compression needle rod 542 of the dotting rod 540 is passed through A housing 310 having a solution inlet 312 assembled with a connection line 420 for supplying a resin solution of the syringe 410 constituting the resin solution supplying means 400 to a portion of the solution passage; A needle 320 which is assembled with a removable material by a fixing bolt 323 at a lower portion of the solution passage 311, and a fix bolt 330 that assembles the housing 310 from the lower side of the body 200. Include.

At this time, the housing 310 has a screw tube 315 through which the solution passage 311 penetrates the upper portion, and the solution passage 311 is formed as a stepped hole in which the step diameter decreases from the top to the lower step. An airtight ring 316 and a crimping ring 317 for compressing the airtight ring are fitted to the stepped portion of the ball, and are assembled to prevent separation from the tightening cap 318 screwed to the screw pipe 315.

The airtightness between the upper portion of the solution passage 311 of the housing 310 and the outer circumferential surface of the dotting rod 540 is that the dotting rod 540 has the tightening cap 318, the pressing ring 317, and the airtight ring ( 316 is inserted into the solution passage 311, and the airtight ring 316 is further in close contact with the outer circumferential surface of the dotting rod 540 by the pressing of the pressing ring 317, thereby ensuring the airtightness of the lifting operation. It is supposed to be maintained.

In addition, when washing the solution passage 311 and the dotting rod 540 of the housing 310 and replacing the needle 320, loosening the screw bolt 330 screwed to the body 200 It can be easily separated in the horizontal direction of one part.

On the other hand, the needle 320 is formed on the top of the discharge needle hole 321 expansion needle hole 322 of the same diameter as the compression needle rod 542 of the dotting rod 540, the drive cam 130 The height distance Db is equal to the distance difference Db between the long axis a and the short axis b.

In addition, the piston 230 is raised by the supply of compressed air to the cylinder chamber 220 of the drive connecting means 210 so that the sliding roll 520 of the elevating interlocking means 500 drives the servo motor 100. The rising distance Da sliding in the horizontal section 122 of the cam 130 is greater than the height distance Db of the expansion needle hole 322 of the needle 320 so that a constant distance difference Da-Db = Dc). (See Figures 4 and 5)

Therefore, the needle 320 in the process of raising and lowering the compression needle rod 542 of the dotting rod 540 by a predetermined distance difference (Dc) from the top of the expansion needle hole 322 of the needle (320). And a long axis (a) in which the discharge needle hole 321 is opened, and the sliding roll 520 is rotated by the rotation of the driving cam 130 again in the horizontal section 122 in the curved section 121. The lowering of the dotting rod 540 by the distance difference Db of the short axis b is such that the end of the compression needle bar 542 has a predetermined distance difference Dc from the upper portion of the discharge needle hole 321. And the descent operation is completed.

As a result, the lower end of the compression needle rod 542 of the dotting rod 540 is opened within a predetermined distance difference (Dc) of the upper portion of the expansion needle hole 322 of the needle 320, the discharge needle hole As the downward compression is completed with the distance difference Dc of the upper portion of 321, compression pumping of the resin solution filled in the solution passage 311 is always performed at the end of the compression needle rod 542. Since it does not collide with the upper part of the ball 321, the noise of the needle 320 and the discontinuity of the needle 320 are simultaneously prevented.

In particular, the dotting rod 540 is the short axis (b) position (horizontal section: 122) at the maximum downward movement of the sliding axis of the sliding roll 520 is the long axis (a) position (curve section: 121) of the drive cam 130 In the process of ascending) by generating a momentary negative pressure inside the expansion needle hole 322 of the needle 320 by the suction (suction) function to suck the resin solution formed at the end of the discharge needle hole (321) This is provided.

Therefore, the tail generated in the high speed dispensing operation of the resin solution in the form of dots is eliminated, and as a result, there is no drop phenomenon of the resin solution, thereby providing high-speed quantitative discharge.

6, the lowering force 250 is applied to the elevating interlocking means 500 between the lower cover 250 of the driving connecting means 210 and the rod bracket 530 of the elevating interlocking means 500. Compression needle rod 542 of the dotting rod 540 is lowered to the expansion needle hole 322 of the needle 320, blocking force applying means 600 such as a compression spring to block the discharge needle hole 321 is It is provided.

The blocking force applying means 600 is a predetermined distance Da by the lifting interlocking means 500 by the elastic force when the compressed air supplied to the cylinder chamber 220 of the drive connecting means 210 is blocked (intermitted). The sliding roll 520 releases the sliding state with the drive cam 130 of the servo motor 100 and at the same time the end portion of the compression needle rod 542 of the dotting rod 540 is distributed. The discharge needle hole 321 of the needle 320 of the needle means 300 is blocked to block the discharge of the resin solution introduced into the solution passage 311 of the housing 310.

In this state, that is, the state of FIG. 3 illustrates the initial state of the present invention or the state in which the supply of the resin solution is stopped.

In this state, as shown in FIG. 8, the compressed air control means 700, such as a compressor, is mounted on the cylinder chamber 220 of the drive connecting means 210 to resume the driving or dispensing operation for the dispensing operation. When compressed air is supplied, the piston 230 of the cylinder chamber 220 is raised.

As the piston 230 is raised, the lifting linkage means 500 is interlocked with each other, and the sliding roll 520 of the lifting linkage means is a horizontal section formed on the drive cam 130 of the servo motor 100. It rises as much as the rising distance Da and connects to 122. As shown to FIG.

In this case, when the sliding roll 520 abuts on the curved section 121 of the driving cam 130 while the driving of the servo motor 100 is blocked, the driving cam 130 is the sliding roll 520. By the rotation by the lifting force of the) the sliding roll 520 is converted and rotated to be connected to the position of the horizontal section 122 so that the sliding roll 520 always raises the lift distance Da (see Fig. 4). ).

Accordingly, the dotting rod 540 of the elevating interlocking means 500 also rises by the rising distance Da, so that an end portion of the compression needle rod 542 blocking the discharge needle hole 321 of the needle 320 is thus raised. The upper portion of the expansion needle hole 322 is raised by a predetermined distance difference Dc to be opened.

That is, the height distance of the extended needle hole 322 and the distance difference (Db) of the long axis (a) and the short axis (b) of the drive cam 130, the sliding roll 520 is raised to the drive cam Ascending distance Da sliding in the horizontal section 122 of the 130 is a predetermined distance difference (Dc) is larger, the end of the compression needle rod 542 of the dotting rod 540 is the needle The discharge needle hole 321 is opened by rising by the distance difference Dc from the upper portion of the expansion needle hole 322 of 320.

In addition, the solution passage 311 in the housing 310 of the dispensing needle means 300 is connected to a resin solution filled in the syringe 410 constituting the resin solution supply means 400 and the solution inlet 312. The compressed needle is supplied through the 420 so that the expansion needle hole 322 is filled with a resin solution.

In this state, as shown in FIG. 9, when power is supplied to the servo motor 100, the drive cam 130 of the drive shaft 110 rotates.

In conjunction with the rotation of the drive cam 130, the sliding roll 520 slides the horizontal section 122 and the curved section 121 of the drive cam 130, as a result of the long axis (a) and the short axis (b) The distance difference (ab = Db) of the dotting rod 540 is repeatedly lifted (linear reciprocating motion) to compress the resin solution filled in the expansion needle hole 322 to discharge through the discharge needle hole 321 Dispensing operation is performed.

At this time, the lower end of the compression needle rod 542 of the dotting rod 540 is raised by a predetermined distance difference (Dc) and the upper portion of the expansion needle hole 322 of the needle 320 in the open state By lowering the height distance Db of the discharge needle hole 321 such as the distance difference Db between the long axis a and the short axis b of the cam section of the cam 130, Compression pumping is performed with a predetermined distance difference (Dc) from the top to provide a dispensing operation by discharging the resin solution without impact between the end portion of the compression needle rod 542 and the upper portion of the discharge needle hole 321. There is no impact damage and noise of the needle 320.

In particular, the discharge of the resin solution according to the dispensing operation is provided by the direct drive of the drive cam 130 and the sliding roll 520 of the lifting interlocking means 500, thereby implementing a high-speed dispensing operation, The lowering operation according to the discharge of the resin solution is provided by air damping by the compressed air supplied to the cylinder chamber 220 of the driving connecting unit 210 to provide a smooth operation.

Further, the lifting bracket is connected to the lifting bracket 500 of the lifting means 500 by the L.M guide 560 connected to the body 200 is implemented to provide precise driving according to the lifting.

The dispensing operation is completed by this process, or when the syringe 410 of the resin solution supply means 400 is replaced in the process, the power of the servo motor 100 is cut off and supplied to the driving connecting means 210. Compressed air is blocked.

Therefore, while the compressed air which is the driving power source of the piston 230 of the drive connecting means 210 is removed, the lifting linkage means 500 is lowered by the blocking force applying means 600 to the An end portion of the compression needle bar 542 blocks the upper and lower portions of the discharge needle hole 321 of the needle 320 to block the discharge of the resin solution.

That is, the blocking force applying means 600 of the compression spring is the lifting linkage means 500 by the elastic force when the compressed air supplied to the cylinder chamber 220 of the drive connecting means 210 is blocked (interrupted). The sliding roll 520 releases the sliding state with the driving cam 130 of the servo motor 100 by lowering the predetermined distance Da, which is a rising distance, and the dotting rod 540 is the distribution needle means ( The discharge needle hole 321 of the needle 320 of the 300 is blocked to block the discharge of the resin solution introduced into the solution passage 311 of the housing 310.

In this state, the syringe 410 can be replaced, and when dispensing other types of resin solution, the dispensing needle means 300 and the dotting rod 540 should be separated for washing.

In this operation, the fixing bolt 330 which fixes the housing 310 of the distribution needle means 300 at one part of the body 200 can be unscrewed and easily separated in the horizontal direction of the side surface.

That is, by moving the expansion head 541 of the dotting rod 540 in the horizontal direction from the assembly hole 536 of the assembly protrusion 535 protruding under the rod bracket 530 of the elevating linkage means 500 Easy to remove

After this separation, the dotting rod 540 is separated and washed in the solution passage 311 of the housing 310, and the housing 310 has a capping cap 318, a pressing ring 317, and an airtight ring 316. ) And the connection line 420 of the needle 320 and the syringe 420 to clean the solution passage 311 and the solution inlet 312 of the housing 310, and to wash each of the separated members The needle 320 and the connection line 420 is replaced with another one and then reassembled, and it is convenient to maintain and maintain a device that can be used by reassembly by the reverse order.

As described in detail above, the dispenser head of the present invention has the effect that the discharging of the resin solution for dispensing is provided by a compression pump by driving the drive source directly connected to the servomotor, thereby implementing a high-speed dispensing operation, and When the compression lowering of the dotting rod for discharging, the smooth descending operation by air damping and the impact of the needle are minimized and the noise is minimized.The effect of guaranteeing the lifespan by eliminating the impact of needle damage and cleaning for maintenance The ease of separation of the member has the effect of being convenient.

Claims (10)

The dosing rod is lifted and lifted by the driving of the servo motor assembled to the body, and the resin solution filled in the syringe of the resin solution supply means is supplied to the dispensing needle means along the XYZ axis. In the dispenser head for dispensing in a dot form at a predetermined position of the PCB through the needle, The servo motor having a drive cam assembled to a drive shaft; A cylinder chamber having an air port penetrated integrally with one part of the body and having a piston installed between the upper and lower parts thereof, and a lower cover, is provided with compressed air supplied through the air port. Drive connecting means for raising the piston a predetermined distance; A roller bracket assembled with a sliding roller connected to the piston and a connecting bolt and linked with a drive cam of the servo motor, and a rod bracket assembled with the dotting rod with a detachable material. The brackets are connected to each other and assembled with an LM guide. Lifting interlock means consisting of a connecting bracket connected, At the tip of the dotting rod, a solution passage for accommodating a predetermined length of the upper side is penetrated, and at one part of the solution passage is provided with a solution inlet assembled with the connection line of the syringe, and the needle is detachable from the lower portion of the solution passage. And a dispensing needle means having a housing to be assembled, wherein an upper circumference of the solution passage and an outer circumferential surface of the dotting rod are assembled with an airtight material, and the housing is assembled with a detachable material by a fix bolt under the body. Means for applying a blocking force of the compression spring is installed between the lower cover of the drive connecting means and the rod bracket of the lifting linkage means to give the lowering force of the lifting linkage means to block the discharge needle hole of the dotting rod. High speed dispenser head of the air damping type, characterized in that provided with. delete The method of claim 1, The rod bracket of the elevating interlock means has a plurality of bending pieces having stepped portions that are inwardly bent inwardly at a lower portion thereof so as to protrude at a predetermined interval, and the upper portion of which is extended to the assembling protrusion having the assembling holes opened in the lower and horizontal directions. Air damping type high speed dispenser head, characterized in that the expansion head of the dotting rod is assembled and separated in the horizontal slide. The method of claim 1, The discharge needle hole of the needle is formed with an expansion needle hole in the upper portion, the dotting rod is a high-speed dispenser head of the air damping type, characterized in that a compression needle rod of the same diameter as the expansion needle hole protrudes at the tip end The method according to claim 1 or 4, The drive cam has a configuration in which the curved section of the arc and the horizontal section are opposed to each other on the outer circumferential surface of the sliding roll of the elevating linkage means, the distance between the long axis and the horizontal section between the curved section is the needle High-speed dispenser head of the air damping type, characterized in that it is equal to the height distance of the expansion needle ball. The method of claim 5, The sliding distance of the sliding roll in the horizontal section of the drive cam is to have a certain distance difference larger than the height of the expansion needle hole of the needle so that the compression needle rod of the dotting rod is the expansion needle of the needle within the distance difference Air damping type high speed dispenser head, characterized in that the ball in the open state. The method of claim 6, The compression needle rod of the dotting rod is a high speed of the air damping type, characterized in that the end of the compression lowering ends as much as the difference between the rising distance of the sliding roll and the height distance of the expansion needle ball in the horizontal section of the drive cam Dispenser head. The method of claim 1, The airtightness between the upper portion of the solution passage of the housing and the outer circumferential surface of the dotting rod is a gas tight ring assembled to the step of the solution passage by a tightening cap screwed to a screw tube protruding from the upper portion of the housing, Air damping type high-speed dispenser head, characterized in that the through-hole in the center is in close contact with the outer peripheral surface of the dotting rod to maintain the airtight. The method according to any one of claims 1, 3, and 8, The housing of the dispensing needle means and the dotting rod of the elevating interlocking means are configured to separate or assemble at the same time in the horizontal direction of one part by loosening or tightening the fix bolts. delete

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