JP2002361147A - Viscous liquid coating device - Google Patents

Abstract

(57) [Problem] To provide a coating apparatus in which a viscous liquid is applied to a large number of places at once, and the application amount can be controlled to be constant. SOLUTION: Syringe 1 filled with cream solder 2
And an application block 8 connected to the syringe 1, flow paths 12, 13 through which the cream solder 2 flows through the application block 8 and flows out of the syringe 1, and downstream of each of the flow paths 12, 13. And a plurality of nozzles 14, 1 provided to protrude from the coating block 8
5 and a conveyor 17 provided below the nozzles 14 and 15 and on which a chassis 16 is placed. A flow control valve for controlling the flow rate of the cream solder 2 is provided in the plurality of flow paths 12 and 13. 18 and 19. Thereby, the cream solder 2 can be uniformly applied.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a viscous liquid coating apparatus.

[0002]

2. Description of the Related Art A conventional liquid applying device having viscosity will be described below.

[0003] A conventional cream solder application device (used as an example of an application device for a viscous liquid. In addition, there are an adhesive and a sealing material as the viscous liquid) as shown in FIG. Was something. That is, the cream solder 2 is filled in the syringe 1 and the syringe 1
Was provided with a nozzle 3 at the tip. A pneumatic pipe 4 is provided on the other side of the syringe 1, and compressed air is supplied through the pneumatic pipe 4 to be extruded or sucked so that the cream solder 2 is provided at a plurality of locations on the chassis 5. Had been applied.

In this apparatus, the syringe 1 is moved to each of a plurality of cream solder application positions 6.

[0005]

However, in such a conventional cream solder applying apparatus, when applying the cream solder 2 to each of a plurality of application positions 6 on the chassis 5, the syringe 1 is first moved to a position 6a. And then apply the syringe 1 by moving it to the location 6b,
Next, the syringe 1 must be moved to the location 6c to apply the cream solder 2, which is very time-consuming and inefficient. Therefore, for example, a nozzle having a plurality of nozzles 7 at the tip of the syringe 1 as shown in FIG.
A device for applying the cream solder 2 to a plurality of application positions on the chassis 5 at one time has also been developed. There was a problem of uniformity.

An object of the present invention is to solve such a problem and to provide a viscous liquid applying apparatus capable of applying a uniform cream solder.

[0007]

According to the present invention, there is provided a viscous liquid applying apparatus according to the present invention, wherein a plurality of flow paths connected to a nozzle are provided with adjusting means for controlling the flow rate of the liquid. This is a configuration provided. Thereby, a viscous liquid can be uniformly applied.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS According to the first aspect of the present invention, a supply section filled with a viscous liquid, a coating block connected to the supply section, A plurality of flow paths through which the liquid flowing out of the supply section is guided, a plurality of nozzles connected to each of the flow paths downstream and protruding from the application block, and provided below the nozzles And a mounting table on which an object to be coated is mounted, wherein the plurality of flow paths are provided with adjusting means for controlling the flow rate of the liquid, respectively. Since there are a plurality of flow paths, a viscous liquid is applied to many places at once, and an adjusting means for adjusting the flow rate is provided, so that the liquid application amount is set to a predetermined amount. Can be controlled.

According to a second aspect of the present invention, the supply section is formed by one syringe, and the liquid flowing out of the syringe is branched into a plurality of flow paths at a branch section provided in the coating block. The liquid application device having viscosity according to claim 1, wherein the supply unit has one syringe, so that it can be used even when the interval between nozzles is narrow. Further, since there is only one syringe, the size of the apparatus can be reduced.

According to a third aspect of the present invention, there is provided the viscous liquid application apparatus according to the second aspect, wherein the branch portion is provided above the application block and is formed by a pool filled with the liquid. By forming the branch portion in a pool-like area in this manner, liquid can be easily supplied to each flow path.

According to a fourth aspect of the present invention, there is provided the viscous liquid application apparatus according to the first aspect, wherein the diameter of the nozzle is set according to the amount of application at the application position of the liquid. When a nozzle having a large nozzle diameter is used or an application amount is small, a liquid suitable for each application amount can be applied using a nozzle having a small nozzle diameter.

According to a fifth aspect of the present invention, in a place where a liquid application interval is narrow, a large-diameter flow path is provided, and a plurality of nozzles are connected in the flow path. This is a liquid coating device having the following characteristics, and the flow rate can be adjusted even if the interval between the nozzles is small. Further, the narrow interval between the nozzles means that the nozzles are close to each other, so that the same amount of liquid is applied from all the nozzles.

According to a sixth aspect of the present invention, the control means for controlling the flow rate of the liquid is formed by a flow control valve penetrating the flow path at right angles, and the diameter of the flow control valve is larger than the diameter of the flow path. 2. The viscous liquid coating device according to claim 1, wherein the coating device has a conical convex portion at its tip and is fitted in a conical concave portion provided on the flow path wall. Can be controlled. Further, since the flow rate control valve is larger than the diameter of the flow path and is conical, the outflow of the liquid can be reliably stopped.

In a seventh aspect of the present invention, a plurality of flow control valves having different mounting height positions are provided for each flow path in a place where the interval for applying the liquid is narrow and no flow control valve can be mounted. 7. A coating apparatus for a liquid having viscosity according to claim 6, wherein the flow rate of each flow path can be adjusted by changing the mounting position of the flow rate control valve without collision with another flow rate control valve.

According to the present invention, a plurality of flow control valves are provided on different surfaces of the coating block for each flow path in a place where the flow control valves to be mounted are so narrow that the flow control valves cannot be mounted. 7. The coating device for viscous liquid according to claim 6, further comprising a valve, wherein the flow rate of each flow path is adjusted by changing a mounting surface of the flow rate control valve so as not to collide with another flow rate control valve. it can.

According to a ninth aspect of the present invention, there is provided the viscous liquid coating apparatus according to the sixth aspect, wherein the flow control valve is fixed to the control valve mounting block and is detachably provided from the coating block. By removing the control valve mounting block to which the flow control valve is mounted, the liquid flow path in the application block is opened, so that maintenance and cleaning can be easily performed. In addition, since the flow control valve is opened while being fixed to the control valve mounting block, maintenance and cleaning can be easily performed, and restoration is also easy, and adjustment such as alignment is unnecessary.

According to a tenth aspect of the present invention, there is provided the ninth aspect of the present invention, wherein an elastic member having a resistance to solvents and having a solvent resistance is interposed between the coating block and the adjustment valve mounting block. A viscous liquid coating device,
Since the elastic member is sandwiched, the liquid does not leak from the gap between the application block and the adjustment valve mounting block.

[0018] The eleventh aspect of the present invention is the coating apparatus for a viscous liquid according to the tenth aspect, wherein the elastic member is made of a fluorocarbon resin. Therefore, the liquid does not leak from the gap between the application block and the adjustment valve mounting block.

According to a twelfth aspect of the present invention, there is provided the viscous liquid coating apparatus according to the first aspect, wherein the nozzle is fixed to the nozzle mounting block and is detachably provided from the coating block. By removing the attached nozzle mounting block, the liquid flow path in the application block is opened, and maintenance and cleaning can be easily performed. In addition, since the nozzle is opened while being fixed to the nozzle mounting block, maintenance and cleaning can be easily performed, restoration is also easy, and adjustment such as alignment is unnecessary.

According to a thirteenth aspect of the present invention, there is provided a viscous member according to the twelfth aspect, wherein a resilient member having solvent resistance is sandwiched between the coating block and the nozzle mounting block while preventing leakage of the liquid. And a liquid does not leak out from the gap between the application block and the nozzle mounting block because the elastic member is sandwiched between the application block and the nozzle mounting block.

According to a fourteenth aspect of the present invention, the liquid supply section is provided on the equipment main body side, and the application block is provided detachably from the equipment main body side. It is a coating device, and maintenance and cleaning can be easily performed because the coating block can be easily removed from the equipment main body and restored.

According to a fifteenth aspect of the present invention, there is provided the viscous liquid coating apparatus according to the first aspect, further comprising a first heater in which the liquid supply unit is surrounded to heat the liquid supply unit. In addition, since the liquid supply unit is heated, the liquid is heated even when the room temperature is low such as in winter, so that a stable viscosity can be maintained and a stable application amount can be maintained.

The invention according to claim 16 is the viscous liquid coating apparatus according to claim 1, wherein the coating block is heated in the coating block and a detachable second heater is provided. In addition, since the application block is heated, the application block does not cool when the room temperature is low, such as in winter, so that the viscosity does not change. Further, by heating the liquid, it is possible to maintain a stable viscosity and a stable application amount. Further, since the second heater is detachable, maintenance and cleaning of the application block can be easily performed.

According to a seventeenth aspect of the present invention, the viscous liquid according to the first aspect, wherein the liquid supply unit is provided with a pneumatic pipe for extruding and sucking the liquid in the liquid supply unit by air pressure. The control and handling can be easily performed because compressed air is used for the control.

The invention according to claim 18 is the viscous liquid coating apparatus according to claim 1, wherein the liquid supply unit is provided with a sensor for detecting the amount of liquid filled in the liquid supply unit. By detecting the remaining amount of liquid in the liquid supply unit with a sensor, the device can be automatically stopped or an alarm device can be activated, and the surroundings can be warned by an alarm sound or a warning light.

According to a nineteenth aspect of the present invention, there is provided the liquid having viscosity according to the eighteenth aspect, wherein a magnetic weight is used on the upper surface of the liquid, and a magnetic sensor for detecting the weight is provided below the supply unit. The coating device can automatically detect the remaining amount of the liquid, and can perform inexpensive and accurate detection because a magnetic sensor is used.

According to a twentieth aspect of the present invention, there is provided the viscous liquid coating apparatus according to the first aspect, wherein the coating block is formed of aluminum. Processing of the concave portion of the valve can be easily performed. Further, since it is formed of aluminum, it is not deformed or rusted by the solvent.

According to a twenty-first aspect of the present invention, there is provided the viscous liquid coating apparatus according to the sixth aspect, wherein the flow rate adjusting valve is formed of stainless steel. There is no deformation or rust due to abrasion of the tip of the convex part or attack of the solvent.

According to a twenty-second aspect of the present invention, there is provided the viscous liquid coating apparatus according to the first aspect, wherein the nozzle mounting plate to which the nozzle is mounted is formed of aluminum. Of the nozzle mounting hole and press-fitting of the nozzle can be easily performed. Also,
Since it is made of aluminum, it does not deform or rust due to solvent attack.

According to a twenty-third aspect of the present invention, there is provided the viscous liquid coating apparatus according to the first aspect, wherein the mounting table is formed by a belt conveyor. The liquid can be efficiently applied to the object.

According to a twenty-fourth aspect of the present invention, there is provided the viscous liquid applying apparatus according to the first aspect, wherein a receiving tray is provided between the nozzle and the mounting table. Except during the operation, the tray is moved below the nozzle, and even if the liquid leaks from the tip of the nozzle, the object to be coated, the mounting table, and the belt conveyor do not become dirty because of the tray.

According to a twenty-fifth aspect of the present invention, the movement of a floating component provided on an object to be coated is pressed and fixed by a spring on a nozzle mounting plate on which a nozzle is mounted.
The liquid application device having viscosity according to claim 1, further comprising a component fixing portion, wherein the nozzle is disposed on the object even if a floating part of the object conveyed by the belt conveyor floats due to vibration or the like. Before reaching the position, the floating component can be pressed and fixed by the component fixing portion, and the liquid can be applied to an accurate position.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a sectional view of an apparatus for applying a viscous liquid according to the present invention. Here, cream solder will be described as an example of the viscous liquid, but the present device is not limited to cream solder as the viscous liquid, but may be an adhesive or the like.

In FIG. 1, reference numeral 1 denotes a syringe, and the syringe 1 is filled with cream solder 2. Above the syringe 1, a pneumatic pipe 4 is connected, and the pneumatic pipe 4 has a structure in which compressed air is extruded or sucked. Reference numeral 8 denotes a coating block provided below the syringe 1. Above the coating block 8, a pool 9 is provided to fill the cream solder 2, and the upper portion is closed by a lid 10. .

Above the lid 10, there is provided a mounting port 11 which is connected to the pool 9. At this mounting port 11, the application block 8 and the syringe 1 are connected with a detachable screw structure.

The coating block 8 is provided with flow paths 12 and 13, and the flow paths 12 and 13 are connected to nozzles 14 and 15, respectively. Below the nozzles 14 and 15, a metal chassis (used as an example of an object to be coated) 16 is mounted on a belt conveyor (used as an example of a mounting table) 17.

Reference numerals 18 and 19 denote flow regulating valves. The flow regulating valve 18 has a structure which is larger than the diameter of the flow passage 12. The tip 18a has a conical convex portion, and fits into a conical concave portion 12a provided in the flow channel 12. Similarly, the diameter of the flow control valve 19 is made larger than the diameter of the flow path 13, the tip 19 a has a conical convex portion, and
Is fitted in a conical concave portion 13a provided in the groove. The flow control valves 18 and 19 are movable in the A direction and the B direction by a screw structure, respectively.

The flow control valve 18 is set in the direction A or B
By moving in the direction, the flow rate of the cream solder 2 flowing through the flow path 12 is controlled. Flow control valve 1
The same applies to 9. Therefore, a predetermined amount of cream solder 2 can be discharged from the nozzles 14 and 15.

Reference numeral 20 denotes a flow control valve mounting block, which is provided detachably from the main body 21 of the coating block 8. A packing 22 made of fluororesin is interposed between the flow control valve mounting block 20 and the main body 21, so that the cream solder 2 does not leak.

Reference numeral 23 denotes a nozzle mounting block, on which nozzles 14 and 15 are mounted so as to protrude. The packing 22 is also sandwiched between the nozzle mounting block 23 and the main body 21.

Reference numeral 16a denotes a pin jack (used as an example of a floating component) attached to the chassis 16. At this point, the pin jack is loose and is fixed by the component presser 24. The component holder 24 is configured to be pressed downward by a spring 25.

Here, the main body 21, the flow control valve 18,
19, the nozzles 14 and 15 are desirably formed of stainless steel. However, if it is formed of aluminum, the processing becomes easy and the cost can be reduced.

Reference numeral 26 denotes a tray, which is moved in the direction C and moved below the nozzles 14 and 15 so that the cream solder 2 does not adhere to the belt conveyor 17 even when the chassis 16 is not provided. In addition, when the chassis 16 is set and in actual use, the tray 26 is
Moving in the direction.

Numeral 27 denotes a magnetic weight which floats on the upper surface of the cream solder 2 and has a magnetism.
Is a magnetic sensor provided below. When the cream solder 2 is consumed, the weight 27 is lowered, the weight 27 is detected by the magnetic sensor 28, and the apparatus is stopped by the signal of the magnetic sensor 28. In addition to connecting the signal from the magnetic sensor 28 to an alarm device and sounding an alarm by sound, an alarm light can be turned on to prompt an alarm by light.

FIG. 2 is a perspective view of the coating block 8.
FIG. 3 is an exploded perspective view thereof. That is, 18 is a large-diameter flow control valve, and 19 is a small-diameter flow control valve. Reference numeral 9 denotes a rectangular pool provided above the main body 21. At the bottom of the pool 9, a large-diameter flow path 12 and a small-diameter flow path 13 are provided. Also, in FIG.
By removing the flow control valve mounting block 20, the maintenance and cleaning of the flow control valves 18, 19 and the flow paths 12, 13 can be easily performed.

FIG. 4 is a top view of the metal chassis.
At the location 29 where the cream solder application interval is narrow, four nozzles 14 are provided in the large-diameter flow path 12 so that the cream solder 2
Is applied. Further, at a place 30 apart from the application interval, the cream solder 2 is applied by the nozzle 15 connected to the small-diameter flow path 13. By applying in this manner, one flow path 12
, A uniform coating amount can be obtained. Further, in the remote place 30, the cream solder 2
Can be controlled, so that the cream solder 2 can be applied uniformly and efficiently as a whole.

[0048]

As described above, according to the present invention, since the adjusting means for adjusting the flow rate of the fluid is provided in each of the plurality of flow paths, the viscous liquid is applied to many places at once. At the same time, the liquid application amount can be controlled to a predetermined amount.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a cream solder application device according to an embodiment of the present invention.

FIG. 2 is a perspective view of a coating block forming the cream solder coating device.

FIG. 3 is an exploded perspective view of the coating block.

FIG. 4 is a plan view of the chassis to which the cream solder is applied;

FIG. 5 is a perspective view of a first example of a conventional cream solder application device.

FIG. 6 is a perspective view of the second example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Syringe 2 Cream solder 8 Application block 12 Flow path 13 Flow path 14 Nozzle 15 Nozzle 16 Chassis 17 Belt conveyor 18 Flow control valve 19 Flow control valve 21 Main part

Claims (25)

[Claims] 1. A supply section filled with a viscous liquid, an application block connected to the supply section, and a plurality of liquid supply units penetrating the application block and guiding the liquid flowing out of the supply section. The flow path, and a plurality of nozzles connected to each flow path downstream and protruding from the coating block, and a mounting table provided below the nozzle and on which an object to be coated is mounted, A coating device for a viscous liquid, wherein the plurality of flow paths are provided with adjusting means for controlling a flow rate of the liquid. 2. The supply unit according to claim 1, wherein the supply unit is formed of one syringe, and the liquid flowing out of the syringe is branched into a plurality of flow paths at a branch unit provided in the application block. Applicator for liquid with viscosity. 3. The viscous liquid application device according to claim 2, wherein the branch portion is provided above the application block and is formed by a pool filled with the liquid. 4. The viscous liquid application device according to claim 1, wherein the diameter of the nozzle is set according to the amount of application at the application position of the liquid. 5. The viscous liquid application apparatus according to claim 1, wherein a large-diameter flow path is provided in a place where the liquid application interval is narrow, and a plurality of nozzles are connected in the flow path. 6. The control means for controlling the flow rate of the liquid is formed by a flow control valve penetrating the flow path at a right angle, the diameter of the flow control valve being larger than the diameter of the flow path and the tip thereof being formed. The viscous liquid application device according to claim 1, wherein the application device is a conical convex portion, and is fitted in a conical concave portion provided in the flow path wall. 7. A plurality of flow control valves having different mounting height positions for each flow path are provided in a place where a liquid application interval is narrow and a flow control valve cannot be mounted.
2. A coating device for a liquid having viscosity according to claim 1. 8. A flow control valve, wherein a plurality of flow control valves are provided on different surfaces of the application block for each flow path in a place where a flow control valve to be mounted is so narrow that a flow control valve cannot be mounted. 7. The coating device for a liquid having viscosity according to 6. 9. The viscous liquid coating apparatus according to claim 6, wherein the flow rate adjustment valve is fixed to the adjustment valve mounting block and is detachably provided from the application block. 10. The viscous liquid coating device according to claim 9, wherein an elastic member having solvent resistance is sandwiched between the coating block and the adjustment valve mounting block to prevent leakage of the liquid. . 11. An apparatus for applying a viscous liquid according to claim 10, wherein the elastic member is made of a fluororesin. 12. The viscous liquid coating apparatus according to claim 1, wherein the nozzle is fixed to the nozzle mounting block and is detachably provided from the coating block. 13. The viscous liquid application device according to claim 12, wherein an elastic member having solvent resistance and preventing liquid leakage is sandwiched between the application block and the nozzle mounting block. 14. The viscous liquid application apparatus according to claim 1, wherein the liquid supply unit is provided on the equipment main body side, and the application block is provided detachably from the equipment main body side. 15. The viscous liquid application device according to claim 1, wherein the liquid supply unit is provided with a first heater surrounded to heat the liquid supply unit. 16. The viscous liquid coating apparatus according to claim 1, wherein the coating block is provided with a second heater that is detachable while heating the coating block. 17. The viscous liquid coating apparatus according to claim 1, wherein the liquid supply unit is provided with a pneumatic pipe for pushing out and sucking the liquid in the liquid supply unit by air pressure. 18. The viscous liquid application device according to claim 1, wherein the liquid supply unit is provided with a sensor for detecting an amount of the liquid filled in the liquid supply unit. 19. The viscous liquid coating apparatus according to claim 18, wherein a magnetic weight is used on the upper surface of the liquid, and a magnetic sensor for detecting the weight is provided below the supply unit. 20. The coating device for viscous liquid according to claim 1, wherein the coating block is formed of aluminum. 21. The coating device for a viscous liquid according to claim 6, wherein the flow control valve is formed of stainless steel. 22. The viscous liquid coating apparatus according to claim 6, wherein the nozzle mounting plate to which the nozzle is mounted is formed of aluminum. 23. The application device according to claim 1, wherein the mounting table is formed by a belt conveyor. 24. The viscous liquid applying apparatus according to claim 1, wherein a receiving tray that can freely enter and exit is provided between the nozzle and the mounting table. 25. The component mounting part according to claim 1, wherein the nozzle mounting plate to which the nozzle is mounted is provided with a component fixing part to press and fix the movement of the floating component mounted on the object to be coated by a spring. Viscous liquid coating device.