CN112312672A

CN112312672A - Blowing device and blowing method thereof

Info

Publication number: CN112312672A
Application number: CN201910699118.0A
Authority: CN
Inventors: 陈安顺
Original assignee: Group Up Industrial Co ltd
Current assignee: Group Up Industrial Co ltd
Priority date: 2019-07-31
Filing date: 2019-07-31
Publication date: 2021-02-02

Abstract

An air blowing device and an air blowing method thereof are suitable for blowing off printing ink filled in a plurality of through holes of a substrate. The conveying mechanism can convey the substrate to move along the conveying direction. The air blowing mechanism comprises an air nozzle which blows air to the substrate along an air blowing direction so as to blow off the ink in the through hole. Therefore, the effect of automatically and rapidly blowing off the printing ink in the through hole of the substrate can be achieved.

Description

Blowing device and blowing method thereof

Technical Field

The present invention relates to an air blowing device and a blowing method thereof, and more particularly, to an air blowing device for blowing off ink in a through hole of a substrate and a blowing method thereof.

Background

When the circuit board is manufactured, ink is coated on the surface of the substrate through an ink coating machine to form an insulating protective layer, so that the conductive circuit on the substrate is prevented from being oxidized. Since the substrate has a plurality of through holes, the through holes on the substrate are filled with the ink during the ink application process. Therefore, how to quickly remove the ink in the through hole of the substrate after the ink application process is an important issue.

Disclosure of Invention

It is therefore an object of the present invention to provide an insufflation apparatus which overcomes at least one of the disadvantages of the background art.

The object of the present invention and the problem of the background art are achieved by the following technical solutions, and the air blowing device according to the present invention is suitable for blowing off the ink filled in the plurality of through holes of the substrate.

The blowing device comprises a conveying mechanism and a blowing mechanism, the conveying mechanism is used for carrying the substrate and conveying the substrate to move along the conveying direction, the blowing mechanism comprises at least one air nozzle, and the air nozzle sprays air to the substrate along the air spraying direction at an angle with the conveying direction so as to blow off the ink in the through hole.

In the blowing device of the present invention, the gas ejection head is provided with a gas ejection port for ejecting compressed gas in the form of a wind knife to the substrate, and the gas ejection direction is perpendicular to the transport direction and is the same as the through hole extension direction.

In the air blowing device of the present invention, the air blowing mechanism includes a plurality of air blowing heads arranged at intervals in the conveying direction.

According to the blowing device, the conveying mechanism comprises a plurality of conveying assemblies which are arranged at intervals along the conveying direction, a gap is defined between every two adjacent conveying assemblies, and the air outlets of the air nozzle are aligned with the corresponding gaps.

According to the blowing device, the conveying mechanism comprises a plurality of conveying assemblies which are arranged at intervals along the conveying direction, each conveying assembly comprises a V-shaped fixed shaft rod, a first inclined driving roller which is rotatably pivoted on the fixed shaft rod, and a second inclined driving roller which is rotatably pivoted on the fixed shaft rod, and the first driving roller and the second driving roller are respectively used for bearing two side edges of the substrate.

According to the blowing device, the conveying mechanism further comprises a driving assembly, the driving assembly is connected with the first driving roller of the conveying assembly and used for driving the first driving roller to rotate, the conveying assembly further comprises a linkage piece, the linkage piece is connected between the adjacent ends of the first driving roller and the second driving roller, and the linkage piece can be driven by the first driving roller to rotate and is linked with the second driving roller to rotate.

According to the blowing device, the first transmission roller is provided with a first hole adjacent to the second transmission roller, the second transmission roller is provided with a second hole adjacent to the first transmission roller, and the linkage piece is a spring which is sleeved on the fixed shaft rod and two ends of which are respectively clamped in the first hole and the second hole.

According to the blowing device, the fixed shaft rod is provided with a first rod body which is inclined and a second rod body which is inclined and connected with the first rod body, an obtuse angle is formed between the first rod body and the second rod body, the first driving roller is pivoted on the first rod body, the second driving roller is pivoted on the second rod body and clamped with the obtuse angle of the first driving roller, and the first driving roller and the second driving roller are in a long columnar shape.

It is another object of the present invention to provide a blow-down method of an air blowing device that overcomes at least one of the disadvantages of the background art.

The object of the present invention and the problem of the background art are achieved by the following technical solutions, and the blowing method of the blowing device according to the present invention is suitable for blowing off the ink filled in the plurality of through holes of the substrate.

The blowing-out method comprises the following steps:

conveying the substrate to move along a conveying direction through a conveying mechanism; and

and at least one air nozzle of the air blowing mechanism blows air to the substrate along an air blowing direction which forms an angle with the conveying direction so as to blow off the ink in the through hole.

According to the blowing method of the blowing device, the air nozzle is used for ejecting compressed air in the form of air knives to the substrate, and the air ejecting direction is perpendicular to the conveying direction and is the same as the extending direction of the through holes.

In the blowing method of the blowing device of the present invention, the blowing mechanism blows air to the substrate through a plurality of air blowing heads arranged at intervals in the conveying direction.

The invention has the beneficial effects that: in the process of conveying the substrate to move along the conveying direction by the conveying mechanism, the air spraying head of the air blowing mechanism sprays air to the substrate along the air spraying direction, so that the ink in the through hole of the substrate can be automatically and rapidly blown off.

Drawings

FIG. 1 is an exploded perspective view of an embodiment of the blowing device of the present invention and a substrate;

FIG. 2 is a cross-sectional view of the substrate illustrating ink applied to a top surface of the substrate and filling the plurality of vias;

FIG. 3 is an exploded perspective view of the embodiment illustrating the assembly of a base, a transport mechanism and a blower mechanism;

FIG. 4 is a perspective view of the transport mechanism of the embodiment from another perspective;

FIG. 5 is a top view of the embodiment and the substrate;

FIG. 6 is a cross-sectional view taken along line VI-VI in FIG. 5, illustrating a first drive roller and a second drive roller receiving the two sides of the substrate, respectively; and

FIG. 7 is a cross-sectional view taken along line VII-VII of FIG. 5 illustrating each of the gas jets ejecting gas in a gas jet direction toward the substrate to blow off ink in the through-holes.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and examples.

Before the present invention is described in detail, it should be noted that in the following description, like elements are represented by like reference numerals.

Referring to fig. 1 and 2, an embodiment of the blowing device 200 according to the present invention is shown, wherein the blowing device 200 is applied to a circuit board manufacturing process and is disposed downstream of an ink coater (not shown). The ink coater is used for coating ink 12 on a substrate 11. The substrate 11 has a bottom surface 111, a top surface 112, and two side edges 113 connected between the bottom surface 111 and the top surface 112 and spaced apart from each other. The substrate 11 is formed with a plurality of through holes 114 penetrating the bottom surface 111 and the top surface 112, and each through hole 114 extends in an up-down direction Z. During the application of ink 12 by the ink applicator to the top surface 112 of the substrate 11, the ink flows into the through-holes 114 and fills the through-holes 114. The air blowing device 200 is used for conveying and blowing air to the substrate 11 after the ink 12 is applied by the ink applicator, so as to blow off the ink 12 in the through hole 114. The blowing device 200 includes a base 2, a conveying mechanism 3, and a blowing mechanism 4.

Referring to fig. 3, the base 2 includes two side rods 21 and a connecting rod 22. The side bars 21 are adjacent to the top end and spaced apart from each other in a left-right direction Y, and each side bar 21 is elongated and extends in a front-rear direction X. The connecting rod 22 is connected to the middle position of the two side rods 21, and the connecting rod 22 is long and extends in the left-right direction Y.

Referring to fig. 3, 4, 5 and 6, the conveying mechanism 3 is disposed on the base 2 for receiving the substrate 11 and capable of conveying the substrate 11 along a conveying direction D parallel to the front-back direction X. The conveying mechanism 3 includes two side plates 31, a plurality of conveying assemblies 32, and a driving assembly 33. The side plates 31 are screwed to the top ends of the side rods 21 of the base 2, and the side plates 31 are inclined inward from the bottom toward the top. The conveying assemblies 32 are disposed between the two side plates 31 and are arranged at intervals along the conveying direction D, and a gap G is defined between every two adjacent conveying assemblies 32. Each transport assembly 32 includes a fixed shaft 321, a first driving roller 322, a second driving roller 323, and a linking member 324. The fixed shaft 321 is V-shaped and extends along the left-right direction Y, and has a first rod 325 and a second rod 326. The inner end of the first rod 325 is connected to the inner end of the second rod 326. The outer end of the first rod 325 is fixedly connected to one of the side plates 31 by, for example, screw fastening, and the outer end of the second rod 326 is inserted through the other side plate 31.

The first driving roller 322 is pivotally connected to the first rod 325 and is inclined to receive one side 113 of the substrate 11. The first drive roller 322 is connected to and can be driven for rotation by the drive assembly 33. The second driving roller 323 is pivotally connected to the second rod 326 and is inclined to receive the other side 113 of the substrate 11. The inclined first and

second driving rollers

322 and 323 respectively receive the two side edges 113, thereby limiting the two side edges 113 to prevent the substrate 11 from rotating or shifting during the conveyance. Furthermore, the first driving roller 322 and the second driving roller 323 can be prevented from contacting the bottom surface 111 of the substrate 11 and affecting the same.

In the embodiment, the first rod 325 and the second rod 326 of the fixing shaft 321 form an obtuse angle a. Since the first driving roller 322 and the second driving roller 323 are respectively pivoted to the first rod 325 and the second rod 326, the first driving roller 322 and the second driving roller 323 also form an obtuse angle a. The first driving roller 322 and the second driving roller 323 are designed to be long-column-shaped, so that the first driving roller 322 and the second driving roller 323 can receive and convey substrates 11 with different sizes, thereby increasing the flexibility in use. The dimension of the substrate 11 is a length between two side edges 113 taken along the left-right direction Y.

The linkage member 324 is connected between the adjacent ends of the first driving roller 322 and the second driving roller 323, and the linkage member 324 can be driven by the first driving roller 322 to rotate and link the second driving roller 323 to rotate. In this embodiment, the first driving roller 322 has a first hole 327 adjacent to the second driving roller 323, the second driving roller 323 has a second hole 328 adjacent to the first driving roller 322, and the linking member 324 is a torsion spring having two ends respectively engaged with the first hole 327 and the second hole 328 and sleeved on the middle of the fixed shaft 321.

The driving assembly 33 includes a frame 331, a driving motor 332, a pulley 333, and a transmission belt 334. The bracket 331 is disposed inside the side plate 31 connected to the first lever 325. The driving motor 332 is disposed on the bracket 331 and connected to the pulley 333 for driving the pulley 333 to rotate. The transmission belt 334 is wound around the pulley 333 and the first transmission roller 322 of the conveying assembly 32, and the transmission belt 334 can be driven by the pulley 333 to rotate simultaneously in conjunction with the first transmission roller 322 of the conveying assembly 32.

Referring to fig. 3, 5 and 7, the blowing mechanism 4 includes a baffle 41, a plurality of nozzles 42, and a gas supply 43. The air guide sleeve 41 is arranged at the bottom end of the connecting rod 22 of the base 2. The gas nozzles 42 are disposed at the top end of the dome 41 and are in gas communication with the dome 41, the gas nozzles 42 are arranged at intervals along the conveying direction D, each gas nozzle 42 is formed with a gas nozzle 421 located at the top end, and the gas nozzle 421 of each gas nozzle 42 is aligned to a gap G defined by two adjacent conveying assemblies 32. The air outlet 421 is long and extends in the left-right direction Y, and is configured to eject compressed air in the form of air knife (air knife) to the substrate 11 on the conveying mechanism 3 along an air ejection direction J that forms an angle with the conveying direction D, so as to blow off the ink 12 in the through hole 114 of the substrate 11. Since the through holes 114 of the substrate 11 extend in the up-down direction Z, the gas injection direction J of the present embodiment is perpendicular to the transport direction D and parallel to the up-down direction Z, so that the compressed gas injected from the gas injection ports 421 can be injected into and flow in the through holes 114 in the same gas injection direction J as the extending direction of the through holes 114. Therefore, the smoothness of the compressed gas flowing in each through hole 114 can be improved, and the efficiency of blowing off the ink 12 in the through holes 114 by the compressed gas is further improved.

The gas supply source 43 is disposed at the bottom end of the pod 41 for supplying gas into the pod 41. In the present embodiment, the gas supply source 43 is a blower for pumping the gas from the external environment into the pod 41.

The following describes a blow-off method of the air blowing device 200:

referring to fig. 1, 5 and 6, the substrate 11 coated with the ink 12 by the ink coater is transferred to the conveying mechanism 3 of the air blowing device 200, and the conveying mechanism 3 receives the two sides 113 of the substrate 11 by the first driving roller 322 and the second driving roller 323 of the conveying assembly 32. Subsequently, the air blowing device 200 performs a blowing method, and the blowing method of the air blowing device 200 includes the following steps:

step S1: the substrate 11 is transported by the transport mechanism 3 in the transport direction D; and

step S2: the substrate 11 is jetted by at least one jet head 42 of the blowing mechanism 4 in a jet direction J at an angle to the conveying direction D to blow off the ink 12 in the through-holes 114.

Referring to fig. 5, fig. 6 and fig. 7, in step S1, the driving motor 332 drives the pulley 333 to rotate so as to drive the transmission belt 334 to rotate, so that the transmission belt 334 drives the first transmission roller 322 of the conveying assembly 32 to rotate along a rotation direction R. The first driving roller 322 of each conveying assembly 32 applies a torque force to the linking member 324 during the rotation process to drive the linking member 324 to rotate, and the linking member 324 transmits the torque force to the second driving roller 323 to drive the second driving roller 323 to rotate along the rotation direction R. Thereby, the conveyance mechanism 3 is enabled to move the substrate 11 in the conveyance direction D.

By means of the design of the linking member 324, the first driving roller 322 can drive the second driving roller 323 to rotate simultaneously through the linking member 324 during the rotation process, so that the conveying mechanism 3 can drive the first driving roller 322 and the second driving roller 323 to rotate simultaneously only by designing a set of driving assembly 33. Thereby, the structure of the conveying mechanism 3 can be simplified and the manufacturing cost can be reduced. In addition, the elastic force of the linking member 324 can keep the first driving roller 322 and the second driving roller 323 at the positions spaced apart from each other as shown in fig. 6, so as to prevent the first driving roller 322 and the second driving roller 323 from colliding with each other.

In step S2, the gas supply source 43 is operated to force the gas from the external environment into the pod 41, and the pod 41 directs the gas to each showerhead 42. Since the size of the gas inlet 422 of each showerhead 42 located below the gas outlet 421 is larger than the size of the gas outlet 421, and the flow channel 423 of each showerhead 42 communicating between the gas inlet 422 and the gas outlet 421 is gradually reduced from the gas inlet 422 toward the gas outlet 421, the gas is compressed and increases the flow rate after flowing into the flow channel 423 through the gas inlet 422. Thereby, the air ejection port 421 can eject the compressed air in the form of air knife upward in the air ejection direction J.

Since each showerhead 42 is positioned within the gap G defined by two adjacent delivery assemblies 32, the pressurized gas ejected from the gas ports 421 of each showerhead 42 is not blocked by the delivery assemblies 32. When the substrate 11 moves above the first showerhead 42, the compressed gas ejected from the gas ejection ports 421 of the showerhead 42 is directly ejected into the bottom surface 111 of the substrate 11 and the corresponding through holes 114. The compressed gas can apply uniform pressure to the ink 12 in the through holes 114 by the compressed gas having a gas injection direction J perpendicular to the transport direction D and the same direction as the extending direction of each through hole 114. Thereby, the compressed gas can smoothly push the ink 12 up out of the through hole 114 to blow off the ink 12 in the through hole 114. When the substrate 11 sequentially passes over the remaining subsequent gas nozzles 42, the compressed gas ejected from the remaining gas nozzles 42 is sequentially ejected into the corresponding through holes 114, so as to further blow off the ink 12 remaining in the through holes 114, thereby ensuring that each through hole 114 can be completely blown to avoid the problem of ink 12 remaining.

It should be noted that the number of the nozzles 42 of the blowing mechanism 4 can be adjusted according to the requirement, and in other embodiments, the number of the nozzles 42 can be one.

In summary, in the blowing device 200 of the present embodiment, the gas nozzle 42 of the blowing mechanism 4 blows the gas toward the substrate 11 along the gas blowing direction J during the process of conveying the substrate 11 along the conveying direction D by the conveying mechanism 3, so as to achieve the effect of automatically and rapidly blowing off the ink 12 in the through hole 114 of the substrate 11, and indeed achieve the purpose of the present invention.

Claims

1. An air blowing device is suitable for blowing off ink filled in a plurality of through holes of a substrate; the method is characterized in that:

2. The insufflation apparatus of claim 1 in which: the gas nozzle is provided with a gas nozzle used for spraying compressed gas in a wind knife form to the substrate, and the gas spraying direction is perpendicular to the conveying direction and is the same as the extending direction of the through hole.

3. The insufflation apparatus of claim 2 in which: the blowing mechanism includes a plurality of air jets arranged at intervals to each other in the conveying direction.

4. The insufflation apparatus of claim 3 in which: the conveying mechanism comprises a plurality of conveying assemblies which are arranged at intervals along the conveying direction, a gap is defined between every two adjacent conveying assemblies, and the gas nozzles of the gas spraying heads are aligned to the corresponding gaps.

5. Blowing apparatus as in any of claims 1 to 3, wherein: the conveying mechanism comprises a plurality of conveying assemblies which are arranged at intervals along the conveying direction, each conveying assembly comprises a V-shaped fixed shaft rod, a first driving roller which is rotatably pivoted on the fixed shaft rod and is inclined, and a second driving roller which is rotatably pivoted on the fixed shaft rod and is inclined, and the first driving roller and the second driving roller are respectively used for bearing two side edges of the substrate.

6. The insufflation apparatus of claim 5 in which: the conveying mechanism further comprises a driving assembly, the driving assembly is connected with the first driving roller of the conveying assembly and used for driving the first driving roller to rotate, the conveying assembly further comprises a linkage piece, the linkage piece is connected between the first driving roller and one end, adjacent to the second driving roller, of the first driving roller, and the linkage piece can be driven by the first driving roller to rotate and is linked with the second driving roller to rotate.

7. The insufflation apparatus of claim 6 in which: the first driving roller is provided with a first hole adjacent to the second driving roller, the second driving roller is provided with a second hole adjacent to the first driving roller, and the linkage part is a spring which is sleeved on the fixed shaft rod and two ends of which are respectively clamped in the first hole and the second hole.

8. The insufflation apparatus of claim 5 in which: the fixed shaft lever is provided with a first rod body which is inclined and a second rod body which is inclined and connected with the first rod body, the first rod body and the second rod body clamp an obtuse angle, the first driving roller is pivoted on the first rod body, the second driving roller is pivoted on the second rod body and clamps the obtuse angle with the first driving roller, and the first driving roller and the second driving roller are in a long columnar shape.

9. A blowing method of a blowing device is suitable for blowing off ink filled in a plurality of through holes of a substrate; the method is characterized in that:

the blowing-out method comprises the following steps:

10. The blowing method of an air blowing device according to claim 9, characterized in that: the air jet head is used for ejecting compressed air in an air knife mode to the substrate, and the air jet direction is perpendicular to the conveying direction and is the same as the extending direction of the through hole.

11. The blowing method of an air blowing device according to claim 10, characterized in that: the blowing mechanism blows air to the substrate through a plurality of air blowing heads arranged at intervals along the conveying direction.