TW202106522A - Air blowing device and blowing and cleansing method thereof for automatically and quickly blowing off ink filled in a plurality of through holes of a substrate - Google Patents

Abstract

An air blowing device is suitable for blowing off ink filled in a plurality of through holes of a substrate. The air blowing device includes a conveying mechanism and an air blowing mechanism. The conveying mechanism can convey the substrate to move along a conveying direction. The air blowing mechanism includes an air jet head, and the air jet head jets air to the substrate along an air jet direction so as to blow off the ink in the through holes. As a result, it is able to achieve the effect of automatically and quickly blowing off the ink in the through holes of the substrate.

Description

Air blowing device and blowing method thereof

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

When the circuit board is manufactured, an ink coater is used to coat ink on the surface of the substrate to form an insulating protective layer, thereby preventing the conductive lines on the substrate from oxidizing. Since a plurality of through holes are formed on the substrate, the through holes on the substrate will be filled with ink during the foregoing ink coating process. Therefore, how to quickly remove the ink in the through holes of the substrate after the aforementioned ink application process has become an important issue.

Therefore, one object of the present invention is to provide a blowing device that can overcome at least one of the disadvantages of the prior art.

Therefore, the blowing device of the present invention is suitable for blowing off the ink filled in a plurality of through holes of a substrate. The blowing device includes a conveying mechanism and a blowing mechanism.

The conveying mechanism is used for receiving the substrate and can convey the substrate to move along a conveying direction. The air blowing mechanism includes at least one air jet head, which air jets the substrate along an air jet direction that is at an angle with the conveying direction to blow off the ink in the through holes.

In the air blowing device of the present invention, the air jet head is formed with an air jet port for jetting compressed gas in the form of an air knife to the substrate, and the air jet direction is perpendicular to the conveying direction and is the same as the extending direction of each through hole.

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

In the blowing device of the present invention, the conveying mechanism includes a plurality of conveying assemblies spaced apart from each other along the conveying direction, a gap is defined between every two adjacent conveying assemblies, and the air nozzles of each of the air jets Align to the corresponding gap.

In the blowing device of the present invention, the conveying mechanism includes a plurality of conveying assemblies arranged at intervals along the conveying direction, and each conveying assembly includes a V-shaped fixed shaft and a rotatably pivotally connected to the fixed shaft A first transmission roller with a tilted rod, and a second transmission roller pivotally connected to the fixed shaft and tilted. The first transmission roller and the second transmission roller are respectively used to support the substrate On both sides.

In the air blowing device of the present invention, the conveying mechanism further includes a driving assembly connected with the first transmission roller of each conveying assembly to drive the rotation thereof, and each conveying assembly further includes a linkage member, The linkage is connected between the adjacent ends of the first transmission roller and the second transmission roller, and the linkage can be driven to rotate by the first transmission roller and linked to the rotation of the second transmission roller.

In the blowing device of the present invention, the first transmission roller is formed with a first hole adjacent to the second transmission roller, the second transmission roller is formed with a second hole adjacent to the first transmission roller, and the linkage is set in The fixed shaft has two ends respectively clamped on the springs of the first hole and the second hole.

In the blowing device of the present invention, the fixed shaft has an inclined first rod body, and a second rod body that is inclined and connected to the first rod body, and the first rod body and the second rod body are clamped An obtuse angle, the first transmission roller is pivotally connected to the first rod, the second transmission roller is pivotally connected to the second rod and clamps the obtuse angle with the first transmission roller, the first transmission roller and the second The driving rollers are all long columnar.

Another object of the present invention is to provide a blowing method for a blowing device that can overcome at least one of the disadvantages of the prior art.

Therefore, the blowing method of the blowing device of the present invention is suitable for blowing off the ink filled in the plurality of through holes of a substrate, and the method includes the following steps:

Conveying the substrate to move in a conveying direction through a conveying mechanism; and

At least one air blowing head passing through an air blowing mechanism injects air on the substrate in an air blowing direction that is at an angle with the conveying direction to blow off the ink in the through holes.

In the blowing method of the blowing device of the present invention, the blowing head is used to spray compressed gas in the form of an air knife to the substrate, and the blowing direction is perpendicular to the conveying direction and is the same as the extending direction of each through hole.

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 spaced apart from each other along the conveying direction.

The effect of the present invention is that during the process of conveying the substrate along the conveying direction by the conveying mechanism, the air blowing head of the blowing mechanism blows air on the substrate along the air blowing direction, thereby achieving automatic and rapid removal of the ink in the through hole of the substrate. Blow off.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same numbers.

1 and 2 are an embodiment of the air blowing device 200 of the present invention. The air blowing device 200 is used in the circuit board manufacturing process and is arranged downstream of an ink coating machine (not shown). The ink coating machine is used to apply ink 12 to 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 passing through the bottom surface 111 and the top surface 112, and each through hole 114 extends along a vertical direction Z. When the ink coater coats the ink 12 on the top surface 112 of the substrate 11, the ink flows into the through hole 114 and fills the through hole 114. The blowing device 200 is used for conveying and blowing the substrate 11 after the ink 12 is coated by the ink coating machine, 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 two side rods 21 are adjacent to the top and spaced along a left-to-right direction Y, and each side rod 21 is elongated and extends along a front-to-rear direction X. The connecting rod 22 is connected to the middle section of the rods 21 on both sides, and the connecting rod 22 is elongated and extends in the left-right direction Y.

Referring to FIGS. 3, 4, 5 and 6, the conveying mechanism 3 is arranged on the base 2 to receive the substrate 11 and can move the substrate 11 along a conveying direction D, which is parallel to the front-rear direction X. The conveying mechanism 3 includes two side plates 31, a plurality of conveying assemblies 32, and a driving assembly 33. The two side plates 31 are respectively fastened to the top ends of the two side rods 21 of the base 2 through screws, and each side plate 31 is inclined from bottom to top and inward to form an oblique shape. A plurality of conveying assemblies 32 are arranged between the two side plates 31 and arranged at intervals along the conveying direction D. A gap G is defined between every two adjacent conveying assemblies 32. Each conveying assembly 32 includes a fixed shaft 321, a first transmission roller 322, a second transmission roller 323, and a linkage 324. The fixed shaft 321 is V-shaped and extends in the left-right direction Y, and has a first rod 325 that is inclined, and a second rod 326 that is inclined. The inner end of the first rod 325 and the inner end of the second rod 326 are connected together. The outer end of the first rod body 325 is fixedly connected to one of the side plates 31 through, for example, screw locking, and the outer end of the second rod body 326 penetrates through the other side plate 31.

The first transmission roller 322 is pivotally connected to the first rod body 325 in an inclined shape, and is used for receiving one side 113 of the substrate 11. The first driving roller 322 is connected to the driving assembly 33 and can be driven to rotate by it. The second transmission roller 323 is pivotally connected to the second rod body 326 rotatably and has an inclined shape for receiving the other side 113 of the substrate 11. By means of the inclined first transmission roller 322 and the second transmission roller 323 respectively receiving the two sides 113, the two sides 113 can be restricted respectively, so as to prevent rotation or rotation of the substrate 11 during transportation. Offset. Furthermore, it can also prevent the first transmission roller 322 and the second transmission roller 323 from contacting the bottom surface 111 of the substrate 11 and thereby affecting it.

In this embodiment, the first rod body 325 of the fixed shaft 321 and the second rod body 326 form an obtuse angle A. Since the first transmission roller 322 and the second transmission roller 323 are pivotally connected to the first rod body 325 and the second rod body 326, respectively, the first transmission roller 322 and the second transmission roller 323 also have an obtuse angle A. With the design of the first transmission roller 322 and the second transmission roller 323 both in a long cylindrical shape, the first transmission roller 322 and the second transmission roller 323 can receive and transport substrates 11 of different sizes, thereby increasing the flexibility in use. The aforementioned size of the substrate 11 refers to the length between the two sides 113 taken along the left-right direction Y.

The linkage member 324 is connected between the adjacent ends of the first transmission roller 322 and the second transmission roller 323, and the linkage member 324 can be driven to rotate by the first transmission roller 322 and linked to the rotation of the second transmission roller 323. In this embodiment, the first transmission roller 322 is formed with a first hole 327 adjacent to the second transmission roller 323, the second transmission roller 323 is formed with a second hole 328 adjacent to the first transmission roller 322, and the linkage 324 is one or two. The ends are respectively clamped in the first hole 327 and the second hole 328 and sleeved on the torsion spring at the middle of the fixed shaft 321.

The driving assembly 33 includes a bracket 331, a driving motor 332, a pulley 333, and a driving belt 334. The bracket 331 is arranged inside the side plate 31 connected to the first rod body 325. The driving motor 332 is arranged on the bracket 331 and connected with the pulley 333 to drive the pulley 333 to rotate. The transmission belt 334 is wound around the pulley 333 and the first transmission roller 322 of the conveying assemblies 32, and the transmission belt 334 can be driven by the pulley 333 to link the first transmission rollers 322 of the conveying assemblies 32 to rotate at the same time.

Referring to FIG. 3, FIG. 5 and FIG. 7, the air blowing mechanism 4 includes a flow deflector 41, a plurality of jet heads 42, and a gas supply source 43. The deflector 41 is arranged at the bottom end of the connecting rod 22 of the base 2. The air jets 42 are arranged at the top of the deflector 41 and are in gas communication with the deflector 41. The air jets 42 are arranged at intervals along the conveying direction D. Each air jet 42 is formed with an air jet 421 at the top. The air jet 421 of the head 42 is aligned with the gap G defined by two adjacent conveying assemblies 32. The air jet 421 is elongated and its length extends along the left and right direction Y, and is used to jet compressed air in the form of an air knife to the substrate 11 on the transport mechanism 3 along an air jet direction J that is at an angle to the transport direction D. , To blow off the ink 12 in the through holes 114 of the substrate 11. Since the through holes 114 of the substrate 11 extend along the up-down direction Z, the jet direction J of this embodiment is perpendicular to the conveying direction D and parallel to the up-down direction Z, so that the compressed gas jetted from the jet port 421 can be along with each other. The air jet direction J with the same extending direction of the through holes 114 is sprayed into and flows in each through hole 114. Thereby, the smoothness of the flow of the compressed gas in each through hole 114 can be improved, and the efficiency of blowing off the ink 12 in the through hole 114 by the compressed gas can be improved.

The gas supply source 43 is disposed at the bottom end of the diversion cover 41 for supplying gas into the diversion cover 41. In this embodiment, the gas supply source 43 is a blower as an example, which is used to pressurize and send gas from the external environment into the diversion cover 41.

The following describes the blowing method of the blowing device 200:

1, 5 and 6, the substrate 11 after the ink 12 is coated by the ink coating machine will be transferred to the conveying mechanism 3 of the blowing device 200, and the conveying mechanism 3 is transmitted through the first transmission of the conveying assembly 32 The roller 322 and the second driving roller 323 respectively support the two sides 113 of the substrate 11. Subsequently, the blowing device 200 will perform the operation of the blowing method. The blowing method of the blowing device 200 includes the following steps:

Step S1: The substrate 11 is transported and moved along the transport direction D through the transport mechanism 3; and

Step S2: The at least one air-jet head 42 of the air-blowing mechanism 4 blows the substrate 11 along the air-jet direction J at an angle with the conveying direction D to blow off the ink 12 in the through holes 114.

5, 6 and 7, in step S1, the drive motor 332 drives the pulley 333 to rotate to drive the transmission belt 334 to rotate, so that the transmission belt 334 links the first transmission rollers 322 of the conveying assemblies 32 simultaneously Rotate in a rotation direction R. The first transmission roller 322 of each conveying assembly 32 applies a torsion force to the linkage member 324 during rotation and drives it to rotate. The linkage member 324 transmits the aforementioned torsion force to the second transmission roller 323 to drive it to rotate in the rotation direction R. Thereby, the transport mechanism 3 can transport the substrate 11 along the transport direction D.

With the design of the linkage member 324, the first transmission roller 322 can drive the second transmission roller 323 to rotate at the same time through the linkage member 324 during the rotation process, so that the conveying mechanism 3 can drive the first transmission at the same time by designing a set of driving assemblies 33. The roller 322 and the second transmission roller 323 rotate. 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 linkage 324 can keep the first transmission roller 322 and the second transmission roller 323 at a distance from each other as shown in FIG. 6, so as to prevent the first transmission roller 322 and the second transmission roller 323 from each other. collision.

In step S2, when the gas supply source 43 is operating, the gas from the external environment will be forced into the deflector 41, and the deflector 41 will divert the gas to the air jets 42. Since the size of an air inlet 422 of each air jet 42 located below the air jet 421 is larger than that of the air jet 421, and a flow channel 423 of each air jet 42 connected between the air inlet 422 and the air jet 421 is caused by the inlet The gas port 422 gradually shrinks toward the gas jet port 421. Therefore, the gas flows into the flow channel 423 through the gas port 422 and is compressed and increases the flow rate. Thereby, the air jet port 421 can eject compressed gas in the form of an air knife upward along the air jet direction J.

Since each jet head 42 is located in the gap G defined by the two adjacent conveying assemblies 32, the compressed gas ejected from the jet port 421 of each jet head 42 will not be blocked by the delivery assembly 32. When the substrate 11 moves above the first air jet head 42, the compressed gas sprayed from the air jet port 421 of the air jet head 42 will directly spray into the bottom surface 111 of the substrate 11 and the corresponding through hole 114. The jet direction J of the compressed gas is perpendicular to the conveying direction D and is the same as the extension direction of each through hole 114, so that the compressed gas can apply a uniform pressure to the ink 12 in the through hole 114. Thereby, the compressed gas can smoothly push the ink 12 upward and out of the through hole 114 to blow off the ink 12 in the through hole 114. When the substrate 11 passes over the remaining air jet heads 42 in sequence, the compressed gas ejected by the remaining air jet heads 42 is sequentially sprayed into the corresponding through holes 114, which can further blow the ink 12 remaining in the through holes 114 To ensure that each through hole 114 can be blown out to avoid the problem of ink 12 remaining.

It should be noted that the number of air jets 42 of the air blowing mechanism 4 can be adjusted according to requirements. In other embodiments, the number of air jets 42 can also be one.

In summary, in the blowing device 200 of this embodiment, during the process of transporting the substrate 11 along the conveying direction D by the conveying mechanism 3, the air blowing head 42 of the blowing mechanism 4 blows the substrate 11 along the blowing direction J, thereby Therefore, the effect of automatically and quickly blowing off the ink 12 in the through hole 114 of the substrate 11 can be achieved, so the purpose of the invention can be achieved.

However, the above are only examples of the present invention. When the scope of implementation of the present invention cannot be limited by this, all simple equivalent changes and modifications made in accordance with the scope of the patent application of the present invention and the content of the patent specification still belong to This invention patent covers the scope.

11: substrate 111: Bottom 112: top surface 113: side 114: Through hole 12: Ink 200: Blowing device 2: pedestal 21: Sidebar 22: connecting rod 3: Conveying mechanism 31: side panel 32: Conveying assembly 321: fixed shaft 322: The first drive roller 323: The second drive roller 324: Linkage 325: first pole 326: second pole 327: The first hole 328: second hole 33: drive assembly 331: Bracket 332: drive motor 333: Pulley 334: drive belt 4: blowing mechanism 41: Shroud 42: Jet head 421: Jet Port 422: Air Inlet 423: Runner 43: gas supply source A: Obtuse angle D: Conveying direction J: Jet direction R: Rotation direction G: gap X: front and back direction Y: left and right direction Z: Up and down direction S1: Step S2: Step

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: Figure 1 is an exploded perspective view of an embodiment of the blowing device of the present invention and a substrate; Figure 2 is a cross-sectional view of the substrate, illustrating that ink is coated on a top surface of the substrate and fills a plurality of through holes; Figure 3 is a three-dimensional exploded view of the embodiment, illustrating the assembly relationship between a base, a conveying mechanism, and a blowing mechanism; Fig. 4 is a perspective view of the conveying mechanism of the embodiment viewed from another angle of view; Figure 5 is a top view of the embodiment and the substrate; FIG. 6 is a cross-sectional view taken along the VI-VI line in FIG. 5, illustrating that a first transmission roller and a second transmission roller respectively support both sides of the substrate; and FIG. 7 is a cross-sectional view taken along the line VII-VII in FIG. 5, illustrating that each air jet head jets air to the substrate in an air jet direction to blow off the ink in the through holes.

11: substrate

111: Bottom

112: top surface

114: Through hole

12: Ink

322: The first drive roller

41: Shroud

42: Jet head

421: Jet Port

422: Air Inlet

423: Runner

43: gas supply source

D: Conveying direction

J: Jet direction

R: Rotation direction

X: front and back direction

Z: Up and down direction

Claims (11)

A blowing device is suitable for blowing off ink filled in a plurality of through holes of a substrate, and the blowing device includes: A conveying mechanism for receiving the substrate and capable of conveying the substrate to move along a conveying direction; and An air blowing mechanism includes at least one air jet head which jets the substrate along an air jet direction that is angled with the conveying direction to blow off the ink in the through holes. The air blowing device according to claim 1, wherein the air jet head is formed with an air jet port for jetting compressed air in the form of an air knife to the substrate, and the air jet direction is perpendicular to the conveying direction and is in line with the extending direction of each through hole the same. The air blowing device according to claim 2, wherein the air blowing mechanism includes a plurality of air jet heads spaced apart from each other along the conveying direction. The blowing device according to claim 3, wherein the conveying mechanism includes a plurality of conveying assemblies spaced apart from each other along the conveying direction, and a gap is defined between every two adjacent conveying assemblies, each The jet opening of the jet head is aligned with the corresponding gap. The blowing device according to any one of claims 1 to 3, wherein the conveying mechanism includes a plurality of conveying assemblies arranged at intervals along the conveying direction, and each conveying assembly includes a V-shaped fixed A shaft, a first transmission roller pivotally connected to the fixed shaft and inclined, and a second transmission roller pivotally connected to the fixed shaft and inclined, the first transmission roller and The second driving rollers are respectively used for receiving on both sides of the substrate. The blowing device according to claim 5, wherein the conveying mechanism further includes a driving assembly connected to the first transmission roller of each conveying assembly to drive the rotation thereof, and each conveying assembly The component further includes a linkage member connected between the adjacent ends of the first transmission roller and the second transmission roller, and the linkage member can be driven to rotate by the first transmission roller and linked to the rotation of the second transmission roller . The blowing device according to claim 6, wherein the first transmission roller is formed with a first hole adjacent to the second transmission roller, the second transmission roller is formed with a second hole adjacent to the first transmission roller, and the The linkage member is a spring set on the fixed shaft and clamped at the first hole and the second hole at both ends of the spring. The blowing device according to claim 5, wherein the fixed shaft has a first rod body that is inclined, and a second rod body that is inclined and is connected to the first rod body, and the first rod body An obtuse angle is formed with the second rod. The first transmission roller is pivotally connected to the first rod. The second transmission roller is pivotally connected to the second rod and clamps the obtuse angle with the first transmission roller. Both a driving roller and the second driving roller are in the shape of a long column. A blowing method for a blowing device is suitable for blowing off ink filled in a plurality of through holes of a substrate, and the method includes the following steps: Conveying the substrate to move in a conveying direction through a conveying mechanism; and At least one air blowing head passing through an air blowing mechanism injects air on the substrate in an air blowing direction that is at an angle with the conveying direction to blow off the ink in the through holes. The blowing method of the blowing device according to claim 9, wherein the blowing head is used to spray compressed gas in the form of an air knife to the substrate, and the blowing direction is perpendicular to the conveying direction and is the same as the extending direction of each through hole . The blowing method of an air blowing device according to claim 10, wherein the blowing mechanism blows air to the substrate through a plurality of air blowing heads spaced apart from each other along the conveying direction.

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