TWI689455B - Nitrogen box capable of preventing board deviation from continuous passage - Google Patents

Abstract

This creation is a nitrogen box used in the circuit board manufacturing process, which includes a main box body and at least one sealed box; the main box body penetrates the main box body opening; the sealed box closes the main box body opening and contains a conveying module , At least one nitrogen pipe, at least one exhaust pipe and at least one air pipe; the sealed box contains a nitrogen chamber, an exhaust chamber and an air chamber in sequence, which are connected to the nitrogen pipe, exhaust pipe and air pipe respectively In order to prevent the nitrogen in the nitrogen box from leaking into the room; the conveying module has an upper conveying device and a lower conveying device. The two conveying devices are correspondingly arranged on opposite sides of the circuit board and sandwich the circuit board. When producing a flexible circuit board, the position of the circuit board is limited, and it will not be deformed or damaged due to excessive air volume, thereby improving the efficiency and yield of the process of this creation.

Description

Nitrogen box capable of preventing board deviation from continuous passage

This creation is a nitrogen box used to temporarily store semi-finished circuit boards in the circuit board manufacturing process, or a continuous nitrogen board used to bake circuit boards.

The circuit board will be coated with a special coating on the surface during the production process, but the coating is easily oxidized and deteriorated after contact with air, so the semi-finished circuit board after coating needs to be sent to a nitrogen box that can isolate the air for subsequent follow-up Baking process or temporary storage.

Specifically, the nitrogen box in the prior art has an inlet and an outlet, and a conveyor belt penetrates the inlet and the outlet, and can continuously transport the circuit board into and/or out of the nitrogen box.

However, the periphery of the outlet and inlet of the nitrogen box must maintain a proper gap with the circuit board and the conveying device, so that the circuit board can smoothly pass through the outlet and the inlet, but this causes the nitrogen in the nitrogen box to pass from the conveyor belt and the outlet and the inlet The gap between them leaks to the workplace, causing the nitrogen concentration in the workplace to increase and the oxygen concentration to decrease, thereby jeopardizing the safety of workers in the workplace.

In addition, the circuit board includes both a rigid printed circuit board and a film-shaped flexible printed circuit board (hereinafter referred to as a flexible board); the rigid printed circuit board can be directly conveyed by the conveyor belt, but when the thin and light flexible board is directly conveyed by the conveyor belt, it is easy The position of the flexible board is offset by the blowing of the airflow, which affects the yield of the flexible board.

Therefore, the prior art nitrogen box needs to be improved.

In view of the aforementioned shortcomings and deficiencies of the prior art, the present invention provides a nitrogen box that can prevent the plate from deflecting through the continuous plate to prevent nitrogen from leaking from the inlet or outlet to the workplace, and also can limit the position of the soft board to avoid The soft board is subject to a large amount of drift caused by the airflow.

In order to achieve the above-mentioned creative purpose, the technical means adopted in this creation is to design a continuous-passing nitrogen box capable of preventing board deviation, which is used to process a circuit board. : A main box body with at least one main box body opening through its wall surface; At least one sealed box connected to the main box and closing the at least one main box opening, the number of the at least one sealed box is the same as the number of the at least one main box opening, and each of the sealed boxes corresponds to one of the The main box opening, each of which contains: A nitrogen outer wall, a nitrogen separator, an air separator and an air outer wall arranged in sequence, wherein the nitrogen outer wall and the air outer wall respectively form two opposite side walls of the sealed box, and the nitrogen outer wall closes the corresponding main box Body opening; the nitrogen outer wall penetrates a first opening which communicates with the corresponding main box opening of the main box; the nitrogen separator penetrates a second opening, the air separator penetrates a third opening, the air A fourth opening penetrates through the outer wall; the connection between the first opening and the fourth opening is defined as a conveying axis; A nitrogen chamber, an exhaust chamber and an air chamber arranged in sequence are all formed in the sealed box; the nitrogen chamber is located between the nitrogen outer wall and the nitrogen partition; the exhaust chamber is located on the nitrogen partition And the air baffle; the air chamber is located between the air baffle and the air outer wall; the nitrogen chamber and the exhaust chamber communicate through the second opening; the air chamber and the exhaust chamber pass through the first Three openings are connected; A conveying module, which is arranged in the sealed box and located in the nitrogen chamber, the exhaust chamber and the air chamber; the conveying module is used to convey the circuit board along the conveying axis; the conveying module has an upper A conveying device and a lower conveying device, which are correspondingly arranged on opposite sides of the circuit board and sandwich the circuit board; At least one nitrogen tube, which communicates with the nitrogen chamber, and the at least one nitrogen tube conveys nitrogen toward the nitrogen chamber; At least one exhaust pipe, one end of which is connected to the exhaust chamber, and the other end is connected to the outdoor; At least one air pipe communicates with the air chamber, and the at least one air pipe conveys air toward the air chamber.

The advantage of this creation is that by further providing a sealed box at the opening of the main box of the nitrogen box (that is, the inlet and outlet of the prior art), the internal space of the sealed box is divided into a sequentially connected air chamber, exhaust chamber and nitrogen chamber , The internal space of the nitrogen chamber communicates with the opening of the main box; the conveying device passes through the air chamber, the exhaust chamber and the nitrogen chamber in sequence, and penetrates into the main box from the opening of the main box; the air pipe flows from the opposite sides of the conveying device to the air chamber Inflate the air so that the air pressure in the air chamber is higher than the air pressure in the exhaust chamber, and then force the air in the air chamber to flow through the third opening toward the exhaust chamber, whereby the air chamber can form an air wall, the air wall makes nitrogen It is impossible to leak into the workplace from the opening of the conveyor belt penetrating the air baffle, so that the safety of personnel in the workplace can be maintained. In addition, this creation is equipped with a nitrogen tube. The nitrogen tube injects nitrogen into the nitrogen chamber and forms a nitrogen wall, so that the air cannot penetrate the second opening and enter the main box, which can maintain the nitrogen concentration in the main box.

In addition, the sealed box is provided with a conveying module. When the soft board enters the sealed box, the upper conveying device and the lower conveying device of the conveying module sandwich the circuit boards from both sides, thereby, when this creation is used for production When bending the film-shaped flexible board, the conveying module can limit the position deviation of the flexible board due to the blowing of air or nitrogen flow, to avoid the deformation or damage of the flexible board due to the excessive air volume, thereby improving the production of flexible board Process efficiency and yield.

Further, in the above-mentioned nitrogen box which can prevent the partial deviation of the continuous through plate, the upper conveying device of the conveying module has a plurality of rollers, which are arranged along the conveying axis.

Further, in the above-mentioned nitrogen box which can prevent the plate from deflecting and continuously passing through the plate, wherein the lower conveying device of the conveying module has a plurality of rollers arranged along the conveying axis; the positions of the rollers of the lower conveying device Respectively correspond to the position of the rollers on the conveyor.

Further, in the above-mentioned nitrogen box capable of preventing the partial deviation of the continuous through plate, the lower conveying device of the conveying module is a conveying belt, which sequentially penetrates the fourth opening and the third of the sealed box The opening, the second opening, the first opening and the corresponding opening of the main box.

Further, in the above-mentioned nitrogen box which can prevent the plate from deflecting and continuously pass through the plate, the material of the conveyor belt is a mesh belt.

Further, in the above-mentioned nitrogen box capable of preventing the partial deviation of the continuous through plate, the material of the outer ring side of the rollers is Teflon.

Further, in the above-mentioned nitrogen box which can prevent the board from being deflected continuously, the number of the at least one nitrogen tube of each sealed box is two, and the two nitrogen tubes are respectively located on the circuit board at the opening of the sealed box Opposite sides of the at least one; the number of the at least one exhaust pipe is two, the openings of the two exhaust pipes in the sealed box are respectively located on opposite sides of the circuit board; the number of the at least one air pipe is two, the two air The openings of the tube in the sealed box are respectively located on opposite sides of the circuit board.

Further, in the nitrogen box, a continuous-passing nitrogen box capable of preventing plate deviation, wherein each of the sealed boxes further includes two nitrogen diffusion plates, which are disposed in the nitrogen chamber and respectively located in the two air pipes Between the delivery module; the two nitrogen diffusion plate is adjacent to the delivery module; the two nitrogen diffusion plate closes the gas flow path between the two nitrogen tube and the delivery module; the two nitrogen diffusion plate is arranged with a plurality of nitrogen Holes, the nitrogen holes are arranged along the width direction of the conveying module; two air diffusion plates, which are arranged in the air chamber, are respectively located between the two air pipes and the conveying module; the two air diffusion plates are in phase Adjacent to the conveying module; the two air diffusion plates close the air flow path between the two air tubes and the conveying module; the two air diffusion plates are arranged with a plurality of air holes, the air holes are along the width direction of the conveying module arrangement.

Further, the above-mentioned nitrogen box which can prevent the partial deviation of the continuous through plate, wherein each of the sealed boxes further includes two exhaust diffusion plates, which is disposed in the exhaust chamber and is located between the two exhaust pipes and the Between the conveying modules; the two exhaust diffusers are adjacent to the conveying modules; the two exhaust diffusers close the air flow path between the two exhaust pipes and the conveying modules; the two exhaust diffusers are arranged with Plural exhaust holes, the exhaust holes are arranged along the width direction of the conveying module.

Further, in the above-mentioned nitrogen box which can prevent the partial deviation of the continuous through plate, the first opening and the fourth opening are both elongated openings.

The technical means adopted by this creation to achieve the intended purpose of creation will be further described in conjunction with the drawings and preferred embodiments of this creation.

Please refer to FIG. 1, FIG. 2 and FIG. 4, the first embodiment of the nitrogen box of the present invention is used to temporarily store or bake the soft board A, which includes a main box body 10 and two sealed boxes 20.

In this embodiment, the main box 10 is a continuous-plate nitrogen bake oven. The two opposite wall surfaces penetrate a main box opening 11. The two sealed boxes 20 are respectively connected to the two opposite wall surfaces of the main box 10. And close the openings 11 of the two main boxes to prevent the nitrogen in the sealed box 20 from leaking from the openings 11 of the main box; the soft plate A is a long strip-shaped film with good flexibility, and its two ends are wound around the two sealed boxes respectively 20 is opposite to the side of the main box 10; during production, the sealed box 20 on one side of the main box 10 of the flexible board A penetrates into this creation, and then enters the main box through the opening 11 of the main box on the side of the main box 10 In the body 10, after the soft board A is baked in the main body 10, the main body 10 is separated from the main body 10 through the main body opening 11 on the other side of the main body 10, and then sealed from the other side of the main body 10 Box 20 is out of this creation; the number of sealed boxes 20 is not limited to this, as long as the number of sealed boxes 20 is the same as the number of main box openings 11, and each sealed box 20 corresponds to one of the main box openings 11 For example, in other preferred embodiments, the number of the main box opening 11 and the sealed box 20 may also be one, and the soft board A enters and leaves the main box 10 from the same main box opening 11 and so may In addition, the main cabinet 10 is not limited to a nitrogen oven, but may also be a nitrogen storage tank for temporarily storing the soft board A.

Please further refer to FIGS. 2 and 4 to 6, the sealed box 20 includes a nitrogen outer wall 21, a nitrogen separator 22, an air separator 23 and an air outer wall 24 arranged in sequence; the nitrogen outer wall 21 and the air outer wall 24 respectively form opposite side walls of the sealed box 20, the nitrogen outer wall 21 closes the corresponding main box opening 11; the nitrogen outer wall 21 penetrates a first opening 211 (as shown in FIG. 5), and the first opening 211 communicates with the main box 10 Corresponding to the main box opening 11; the nitrogen partition 22 penetrates a second opening 221 (as shown in FIG. 6), the air partition 23 penetrates a third opening 231 (as shown in FIG. 6), and the air outer wall 24 penetrates There is a fourth opening 241 (as shown in FIG. 5); in this embodiment, the first opening 211 and the fourth opening 241 are elongated openings; the connection between the first opening 211 and the fourth opening 221 is defined as a transport Axis.

The sealed box 20 includes a nitrogen chamber 25, an exhaust chamber 26 and an air chamber 27 arranged in sequence, all of which are formed in the sealed box 20; wherein: the nitrogen chamber 25 is located between the nitrogen outer wall 21 and the nitrogen separator 22, The exhaust chamber 26 is located between the nitrogen partition 22 and the air partition 23, the air chamber 27 is located between the air partition 23 and the air outer wall 24; the nitrogen chamber 25 and the exhaust chamber 26 pass through the second opening 221 of the nitrogen partition 22 Communication; the exhaust chamber 26 and the air chamber 27 communicate through the third opening 231 of the air baffle 23; in this embodiment, the first opening 211 and the fourth opening 241 of the sealed box 20 are elongated openings, and The periphery of the opening is adjacent to the opposite sides of the flexible board A to reduce gas leakage.

Please further refer to FIG. 2, FIG. 3 and FIG. 5, each sealed box 20 includes a conveying module 30, two nitrogen pipes 40, two air pipes 50 and two exhaust pipes 60, and in this embodiment, further includes There is a pressurizing device, two nitrogen diffusion plates 70, two air diffusion plates 80 and two exhaust diffusion plates 90;

The conveying module 30 is located in the nitrogen chamber 25, the exhaust chamber 26 and the air chamber 27. The conveying module 30 has an upper conveying device 31 and a lower conveying device 32. The upper conveying device 31 and the lower conveying device 32 are correspondingly provided in the soft The opposite sides of the board A, and the soft board A is interposed; the transport module 30 transports the soft board A along the transport axis, specifically, when the soft board A enters the seal from the fourth opening 241 or the first opening 211 of the sealed box 20 After the box 20, the transport module 30 interposes the soft board A, and transports the soft board A to the opening on the opposite side of the sealed box 20 along the transport axis.

In this embodiment, the upper conveying device 31 is a plurality of rollers arranged on the top side of the soft board A along the conveying axis; the lower conveying device 32 is a plurality of rollers arranged on the bottom side of the soft board A, and the rollers of the lower conveying device 32 are respectively provided The flexible plate A is interposed between the rollers of the upper conveying device 31 to maintain the position of the flexible plate A, and to avoid the flexible plate A being deformed upward or downward due to the difference in wind pressure on both sides In this embodiment, the material of the outer ring side of each roller of the conveyor module 30 is polytetrafluoroethylene (Teflon) to avoid scratching the soft board A, but its material is not limited to this.

In this embodiment, the conveying module 30 further has at least one conveying motor 33 and at least one transmission belt 34, and further, the number of the conveying motor 33 and the transmission belt 34 are plural and further cooperate with the plural transmission gear pairs 35 Commonly used; the conveying motor 33 drives one of the rollers of the lower conveying device 32 to rotate, and sequentially transmits the power of the conveying motor 33 through the driving belt 34 to each roller of the lower conveying device 32; the transmission gear pair 35 has two transmission gears 351, It is connected to one of the rollers of the upper conveyor 31 and the lower conveyor 32, and transmits the power of the conveyor motor 33 from the roller of the lower conveyor 32 to the roller of the upper conveyor 31, so that the conveyor motor 33 can drive the upper conveyor 31 Wheel turns.

In the present embodiment, the aforementioned conveying module 30 is a conveying module 30 conveyed in a single direction. The conveying module 30 carries the soft board A into the main box 10 through the sealed box 20 on the side of the main box 10, the soft board A After the baking in the main box 10 is completed, the main box 10 is left by the main box opening 11 on the other side of the main box 10; specifically, the conveying module 30 carries the soft board A in order to pass through The air chamber 27, exhaust chamber 26 and nitrogen chamber 25 of the sealed box 20 are then sent into the main box 10 for baking. After the baking is completed, the conveying module 30 continues to carry the soft board A from the main box 10 The other side moves out of the main box 10, but not limited to this. When the number of the main box opening 11 is only one, the conveying module 30 is a conveying module 30 with bidirectional conveying capability, so that it can pass through the same main The box opening 11 feeds the soft board A into and out of the main box 10.

Please further refer to FIG. 2, FIG. 5 and FIG. 6, the aforementioned nitrogen tube 40 communicates with the nitrogen chamber 25, and the nitrogen tube 40 delivers nitrogen toward the nitrogen chamber 25; in this embodiment, the opening of the second nitrogen tube 40 in the sealed box 20 is defined The nitrogen inlet 41 and the second nitrogen inlet 41 are respectively located on the top and bottom sides of the flexible board A, so that both sides of the flexible board A can obtain sufficient nitrogen supply, avoiding the obstruction of the flexible board A and the nitrogen chamber 25 One side cannot obtain a sufficient supply of nitrogen, but it is not limited to this. The two nitrogen inlets 41 only need to be located on opposite sides of the delivery module 30, for example, when this creation has a two nitrogen diffusion plate 70 described later, the two The nitrogen diffusion plate 70 can evenly distribute the air flow on the opposite sides of the flexible board A, so the two nitrogen inlets 41 can also be arranged on the same side of the sealed box 20 at intervals, one of the nitrogen inlets 41 is conveyed toward the top side of the conveyor belt Nitrogen, another nitrogen inlet 41 transports nitrogen toward the bottom of the conveyor belt, so it is also possible; moreover, this creation can also have only one nitrogen tube 40, as long as the nitrogen tube 40 can supply a sufficient amount of nitrogen to block air from entering the nitrogen Room 25 is enough.

The aforementioned air pipe 50 communicates with the air chamber 27, and the air pipe 50 conveys air toward the air chamber 27, and specifically, the air pipe 50 conveys dry compressed air (CDA), but not limited thereto; in this embodiment The opening of the second air pipe 50 in the sealed box 20 is defined as the air inlet 51. The relative position of the air inlet 51 and the conveying module 30 is the same as the relative position of the nitrogen inlet 41 and the flexible board A, which will not be repeated here; There may be only one air pipe 50, as long as the air pipe 50 can supply a sufficient amount of air to block nitrogen from entering the air chamber 27.

The exhaust pipe 60 is connected to the exhaust chamber 26 at one end and to the outside at the other end; the pressurizing device is provided in the exhaust pipe 60 to force the gas in the exhaust pipe 60 to flow outdoors; in this embodiment, two The opening of the exhaust pipe 60 in the sealed box 20 is defined as an exhaust port 61. The two exhaust ports 61 are respectively located on the top side and the bottom side of the flexible board A, but the position of the exhaust port 61 is not limited to this. The number of 60 can also be only one.

The aforementioned nitrogen diffusion plate 70 is provided in the nitrogen chamber 25 and is located between the nitrogen gas pipe 40 and the delivery module 30; the nitrogen gas diffusion plate 70 is adjacent to the delivery module 30; the nitrogen gas diffusion plate 70 closes the nitrogen gas pipe 40 and The air flow path between the conveying modules 30; the two nitrogen diffusion plates 70 are arranged with a plurality of nitrogen holes 71, which are arranged along the width direction of the conveying module 30; thereby, the nitrogen diffusion plates 70 can convey the nitrogen pipes 40 The flow of nitrogen gas is evenly distributed to each nitrogen hole 71, so that the gas flow can be evenly distributed on the upper and lower opening edges of the second opening 221 along the width direction of the flexible board A.

The aforementioned air diffusion plate 80 is provided in the air chamber 27 and is located between the two air tubes 50 and the conveying module 30 respectively; the air diffusion plate 80 is arranged with a plurality of air holes 81; the shape, position and function of the air diffusion plate 80 and the foregoing The nitrogen diffusion plate 70 is almost the same, the only difference is that the function of the air diffusion plate 80 is to evenly distribute the air flow of the air delivered by the air pipe 50 to each air hole 81, so that the air flow can be evenly distributed along the width direction of the flexible board A The upper and lower opening peripheral edges of the third opening 231.

The foregoing exhaust diffusion plate 90 is provided in the exhaust chamber 26 and is located between the two exhaust pipes 60 and the conveying module 30; the exhaust diffusion plate 90 is arranged with a plurality of exhaust holes 91; the shape of the exhaust diffusion plate 90 The position and function are substantially the same as the nitrogen diffusion plate 70 described above, the only difference is that the exhaust diffusion plate 90 is provided in the exhaust chamber 26, and the air flow is from the exhaust hole 91 to the exhaust pipe 60.

Please further refer to FIG. 5 and FIG. 6, when the author is in use, the conveying module 30 conveys the soft board A through the sealed box 20 and the main box body 10; the two air pipes 50 respectively from the top side of the conveying module 30 and The bottom side is filled with dry compressed air (CDA) into the air chamber 27 to make the air pressure of the air chamber 27 higher than that of the exhaust chamber 26, thereby forcing the air of the air chamber 27 to flow toward the third opening 231 via the air diffusion plate 80; the air chamber The gas of 27 is rectified through the air holes 81 of the air diffusion plate 80 and is evenly distributed along the width direction of the flexible board A, so that the air can flow uniformly through the elongated third opening 231 toward the exhaust chamber 26, thereby, The air chamber 27 can form an air wall, which prevents the nitrogen in the main box 10 and the nitrogen chamber 25 from leaking into the workplace through the third opening 231; meanwhile, the nitrogen pipe 40 injects nitrogen into the nitrogen chamber 25 and forms A nitrogen wall prevents the air from penetrating the second opening 221 into the main box 10, thereby maintaining the nitrogen concentration in the main box 10.

Please refer to FIG. 7 to FIG. 9, the second embodiment of the nitrogen box of the present invention is substantially the same as the first embodiment, the difference is that the lower conveyor 32A of the conveyor module 30A is a conveyor belt; the lower conveyor 32A penetrates in sequence The fourth opening 241A, the third opening 231A, the second opening 221A, the first opening 211A and the corresponding main box opening 11A of the sealed box 20A; in this embodiment, there is a space between the lower conveying device 32A and the upper conveying device 31A A gap (as shown in Fig. 9), the flexible board (not shown) can be interposed between the lower conveying device 32A and the upper conveying device 31A to avoid the displacement of the flexible board caused by the air flow; the material of the lower conveying device 32A is The mesh belt penetrates through a large number of mesh holes so that the airflow is easy to penetrate, and will not hinder the flow of gas in the sealed box 20A.

In addition, in this embodiment, the two sealed boxes 20A have a conveyor belt drive device B on each side opposite to the main box body 10A, and an endless conveyor belt is connected between the two conveyor belt drive devices B and forms two seals The lower conveying device 32A in the box 20A; the conveyor belt driving device B has a guide wheel B1, which can adjust the tension of the lower conveying device 32A and the lateral position of the lower conveying device 32A relative to the roller to avoid the deviation of the lower conveying device 32A .

In summary, by creating a sealed box at the opening of the main box body of the nitrogen box, the sealed box has a nitrogen chamber, an exhaust chamber and an air chamber arranged in sequence, and the nitrogen pipe and the air pipe face the nitrogen chamber and the air respectively The chamber is filled with nitrogen and air, and the injected gas is discharged through the exhaust chamber to form a nitrogen wall and an air wall. The nitrogen wall is adjacent to the main box opening to maintain the nitrogen concentration of the main box, and the air wall can block Nitrogen leaks into the room to maintain the safety of personnel; in addition, the upper and lower conveying devices of the conveying module are sandwiched by soft plates, which can limit the offset of the soft plates due to the airflow, thereby avoiding the deformation or damage of the soft plates. Improve yield.

The above is only the preferred embodiment of the creation, and does not limit the creation in any way. Although the creation has been disclosed in the preferred embodiment as above, it is not intended to limit the creation. Generally, a knowledgeable person can use the technical content disclosed above to make some changes or modifications to equivalent embodiments without departing from the scope of this creative technical solution. Any content that does not deviate from this creative technical solution is based on this Any simple modifications, equivalent changes, and modifications made to the above embodiments by the technical essence of the creation still fall within the scope of this creative technical solution.

10: main cabinet

11: main box opening

20: sealed box

21: Nitrogen outer wall

211: The first opening

22: Nitrogen separator

221: Second opening

23: Air baffle

231: Third opening

24: Air outer wall

241: Fourth opening

25: Nitrogen chamber

26: Exhaust chamber

27: Air room

30: Conveying module

31: Upper conveyor

32: Lower conveyor

33: conveyor motor

34: Transmission belt

35: Transmission gear pair

351: Transmission gear

40: Nitrogen tube

41: Nitrogen inlet

50: air pipe

51: Air inlet

60: Exhaust pipe

61: Exhaust

70: nitrogen diffusion plate

71: nitrogen hole

80: Air diffuser

81: Air hole

90: Exhaust diffuser

91: vent

A: soft board

10A: main box

11A: main box opening

20A: sealed box

30A: Conveyor module

31A: Upper conveyor

32A: Lower conveyor

211A: The first opening

221A: Second opening

231A: Third opening

241A: Fourth opening

B: conveyor belt drive

B1: Guide wheel

FIG. 1 is a perspective external view of the first embodiment of the present creation.

FIG. 2 is a schematic perspective sectional view of the first embodiment of the present creation.

FIG. 3 is a perspective external view of the delivery module of the first embodiment of the present creation.

FIG. 4 is a schematic cross-sectional view of the first embodiment of the present creation.

FIG. 5 is a schematic partial cross-sectional view of the first embodiment of the present creation.

6 is a partially enlarged schematic view of FIG. 5.

7 is a perspective external view of a second embodiment of the present creation.

FIG. 8 is a schematic partial cross-sectional view of a second embodiment of the present creation.

9 is a partially enlarged schematic view of FIG. 8.

10: main cabinet

20: sealed box

31: Upper conveyor

32: Lower conveyor

40: Nitrogen tube

50: air pipe

60: Exhaust pipe

A: soft board

Claims (10)

A continuous-passing nitrogen box capable of preventing board deviation is used for processing a circuit board. The continuous-passing nitrogen box preventing board deviation includes: A main box body with at least one main box body opening through its wall surface; At least one sealed box connected to the main box and closing the at least one main box opening, the number of the at least one sealed box is the same as the number of the at least one main box opening, and each of the sealed boxes corresponds to one of the The main box opening, each of which contains: A nitrogen outer wall, a nitrogen separator, an air separator and an air outer wall arranged in sequence, wherein the nitrogen outer wall and the air outer wall respectively form opposite side walls of the sealed box, and the nitrogen outer wall closes the corresponding main box Body opening; the nitrogen outer wall penetrates a first opening which communicates with the corresponding main box opening of the main box; the nitrogen separator penetrates a second opening, the air separator penetrates a third opening, the air A fourth opening is penetrated through the outer wall; the connection between the first opening and the fourth opening is defined as a conveying axis; A nitrogen chamber, an exhaust chamber and an air chamber arranged in sequence are all formed in the sealed box; the nitrogen chamber is located between the nitrogen outer wall and the nitrogen partition; the exhaust chamber is located on the nitrogen partition And the air baffle; the air chamber is located between the air baffle and the air outer wall; the nitrogen chamber and the exhaust chamber communicate through the second opening; the air chamber and the exhaust chamber pass through the first Three openings are connected; A conveying module, which is arranged in the sealed box and located in the nitrogen chamber, the exhaust chamber and the air chamber; the conveying module is used to convey the circuit board along the conveying axis; the conveying module has an upper A conveying device and a lower conveying device, which are correspondingly arranged on opposite sides of the circuit board and sandwich the circuit board; At least one nitrogen tube, which communicates with the nitrogen chamber, and the at least one nitrogen tube conveys nitrogen toward the nitrogen chamber; At least one exhaust pipe, one end of which is connected to the exhaust chamber, and the other end is connected to the outdoor; At least one air pipe communicates with the air chamber, and the at least one air pipe conveys air toward the air chamber. The nitrogen box which can prevent the plate from deflecting and continuously passing through the plate as described in claim 1, wherein the upper conveying device of the conveying module has a plurality of rollers, which are arranged along the conveying axis. A nitrogen box with continuous through-plates capable of preventing plate deviation as described in claim 2, wherein the lower conveying device of the conveying module has a plurality of rollers arranged along the conveying axis; the positions of the rollers of the lower conveying device Respectively correspond to the position of the rollers on the conveyor. The continuous-passing nitrogen box capable of preventing plate deviation as described in claim 2, wherein the lower conveying device of the conveying module is a conveying belt, which sequentially penetrates the fourth opening and the third of the sealed box The opening, the second opening, the first opening and the corresponding opening of the main box. As described in claim 4, the nitrogen box which can prevent the plate from deflecting continuously passes through the plate, wherein the material of the conveyor belt is a mesh belt. As described in claim 2, the nitrogen box which can prevent the partial deviation of the continuous through plate, wherein the material of the outer ring side of the rollers is Teflon. The nitrogen box which can prevent the plate from deflecting continuously through the plate as described in any one of claims 1 to 6, wherein each of the sealed boxes The number of the at least one nitrogen tube is two, and the openings of the two nitrogen tubes in the sealed box are respectively located on opposite sides of the circuit board; The number of the at least one exhaust pipe is two, and the openings of the two exhaust pipes in the sealed box are respectively located on opposite sides of the circuit board; The number of the at least one air tube is two, and the openings of the two air tubes in the sealed box are respectively located on opposite sides of the circuit board. The nitrogen box which can prevent the plate from deflecting continuously through the plate as described in claim 7, wherein each of the sealed boxes further includes A two-nitrogen diffusion plate is located in the nitrogen chamber, and is located between the two air tubes and the conveying module; the two-nitrogen diffusion plate is adjacent to the conveying module; the two-nitrogen diffusion plate closes the two-nitrogen tube The air flow path between the delivery module; the two nitrogen diffusion plates are arranged with a plurality of nitrogen holes, and the nitrogen holes are arranged along the width direction of the delivery module; Two air diffusion plates, which are arranged in the air chamber, are respectively located between the two air pipes and the conveying module; the two air diffusion plates are adjacent to the conveying module; the two air diffusion plates close the two air pipes The air flow path between the conveying module; the two air diffusion plates are arranged with a plurality of air holes, and the air holes are arranged along the width direction of the conveying module. As described in claim 7, a continuous-passing nitrogen box capable of preventing plate deviation, wherein each of the sealed boxes further includes two exhaust diffusion plates, which are disposed in the exhaust chamber and are located between the two exhaust pipes and the Between the conveying modules; the two exhaust diffusers are adjacent to the conveying modules; the two exhaust diffusers close the air flow path between the two exhaust pipes and the conveying modules; the two exhaust diffusers are arranged with Plural exhaust holes, the exhaust holes are arranged along the width direction of the conveying module. The continuous-plate nitrogen box capable of preventing plate deviation as described in any one of claims 1 to 6, wherein the first opening and the fourth opening are both elongated openings.

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