TWM586698U - Continuous board feeding nitrogen box capable of preventing board deviation - Google Patents

Abstract

This creation is a nitrogen box used in the circuit board manufacturing process, which includes a main box and at least one sealed box; the main box is penetrated by the main box opening; the sealed box closes the main box opening and includes a transport 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 arranged in sequence, which communicate with the nitrogen pipe, the exhaust pipe, and the air pipe, respectively Therefore, the nitrogen in the nitrogen box is prevented 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 airflow, thereby improving the process efficiency and yield of this creation.

Description

Nitrogen box capable of preventing plate deviation and continuous through plate

This creation is a nitrogen box used to temporarily store the semi-finished product of the circuit board during the circuit board manufacturing process, or a continuous through-board nitrogen box used to bake the circuit board.

During the production process of the circuit board, a special coating is coated on the surface, but the coating is susceptible to oxidation and deterioration after contact with air, so the semi-finished product of the coated circuit board needs to be transported to a nitrogen box that can block the air for subsequent Baking process or temporary storage.

Specifically, the nitrogen box in the prior art has an inlet and an outlet, and a conveyor belt runs through 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 be properly spaced with the circuit board and the conveying device so that the circuit board can pass through the outlet and the inlet smoothly. However, the nitrogen in the nitrogen box will pass from the conveyor belt and the outlet and the inlet. The gap between them is leaked to the workplace, which causes the nitrogen concentration in the workplace to increase and the oxygen concentration to decrease, thereby endangering the safety of workers in the workplace.

In addition, the circuit board includes both a rigid printed circuit board and a thin-film flexible printed circuit board (hereinafter referred to as a flexible board); a rigid printed circuit board can be directly transported by a conveyor belt, but when a thin flexible board is directly transported by a conveyor belt, it is easy The position of the flexible board is deflected due to 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 shortcomings of the prior art, this creation provides a nitrogen box that can prevent the plate from passing through the continuous plate to prevent nitrogen from leaking to the workplace from the inlet or outlet, and can also limit the position of the flexible board to avoid The flexible board is subject to a large amount of deviation due to the air flow.

In order to achieve the above-mentioned creative purpose, the technical means used in this creation is to design a continuous nitrogen plate that can prevent plate deviation, which is used to process a circuit board. The continuous nitrogen plate that can prevent plate deviation includes :
A main box body whose wall surface penetrates at least one main box body opening;
At least one sealed box connected to the main box and closing the opening of the at least one main box, the number of the at least one sealed box is the same as the number of the opening of the at least one main box, and each of the sealed boxes corresponds to one of the Main box opening, each sealed box contains:
A nitrogen outer wall, a nitrogen baffle, an air baffle, and an air outer wall are sequentially arranged, wherein the nitrogen outer wall and the air outer wall respectively form opposite two side walls of the sealed box, and the nitrogen outer wall closes the corresponding main box. A first opening penetrates the nitrogen outer wall, and communicates with the corresponding main cabinet opening of the main cabinet; a second opening penetrates through the nitrogen partition, a third opening penetrates through the air partition, and the air A fourth opening is penetrated through the outer wall; a connection line 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 this order 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 in the nitrogen partition And the air partition; the air chamber is located between the air partition and the air outer wall; the nitrogen chamber and the exhaust chamber communicate with each other through the second opening; the air chamber and the exhaust chamber pass through the first opening Three openings communicate;
A transport module is provided in the sealed box and is located in the nitrogen chamber, the exhaust chamber, and the air chamber; the transport module is used to transport the circuit board along the transport axis; the transport module has an upper A conveying device and a lower conveying device, which are arranged correspondingly on opposite sides of the circuit board and sandwich the circuit board;
At least one nitrogen tube that communicates with the nitrogen chamber, and the at least one nitrogen tube transports nitrogen toward the nitrogen chamber;
At least one exhaust pipe, one end of which is connected to the exhaust chamber, and the other end of which is connected to the outside;
At least one air pipe communicates with the air chamber, and the at least one air pipe delivers air toward the air chamber.

The advantage of this creation is that by further providing a sealed box in the main box opening of the nitrogen box (that is, the inlet and outlet of the prior art), the internal space of the sealed box is divided into an air chamber, an exhaust chamber, and a nitrogen chamber connected in sequence. 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 enters the main box from the opening of the main box; the air pipes from the opposite sides of the conveying device to the air chamber Fill the air so that the pressure in the air chamber is higher than the pressure in the exhaust chamber, and then force the gas in the air chamber to flow through the third opening toward the exhaust chamber. Thus, the air chamber can form an air wall, and the air wall makes nitrogen It is impossible to leak into the workplace from the opening of the conveyor belt through the air partition, thereby maintaining the safety of personnel in the workplace. In addition, a nitrogen pipe is provided in this creation. The nitrogen pipe is filled with nitrogen gas into the nitrogen chamber and forms a nitrogen wall, so that air cannot penetrate the second opening and enter the main cabinet, thereby maintaining the nitrogen concentration in the main cabinet.

In addition, a conveying module is provided in the sealed box. When the flexible 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. When flexing a thin film-like flexible board, the conveying module can limit the positional deviation of the flexible board due to the blowing of air or nitrogen, avoiding deformation or damage of the flexible board due to excessive air flow, thereby improving the production of flexible boards. Process efficiency and yield.

Further, in the above-mentioned nitrogen box capable of preventing the plate from passing through continuously, the upper conveying device of the conveying module has a plurality of rollers arranged along the conveying axis.

Further, in the above-mentioned nitrogen box capable of preventing the plate from passing through continuously, 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 Correspond to the positions of the rollers on the conveying device.

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

Further, in the above-mentioned nitrogen box capable of preventing the plate from passing through the continuous plate, the material of the conveyor belt is a mesh belt.

Further, in the above-mentioned nitrogen box capable of preventing the plate from passing through the continuous plate, the outer side of the rollers is made of polytetrafluoroethylene.

Further, the number of the at least one nitrogen pipe of each of the sealed boxes is two, and the openings of the two nitrogen pipes in the sealed box are respectively located on 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 the opposite sides of the circuit board; the number of the at least one air pipe is two, and the two air The openings in the sealed box are respectively located on opposite sides of the circuit board.

Further, in the above-mentioned nitrogen box, the nitrogen box which can prevent the plate from passing through the plate continuously, each of the sealed boxes further includes a two nitrogen diffusion plate, which are arranged in the nitrogen chamber and are respectively located in the two air pipes. And the transportation module; the two nitrogen diffusion plate is adjacent to the transportation module; the two nitrogen diffusion plate closes the air flow path between the two nitrogen tube and the transportation 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 are arranged in the air chamber and are respectively located between the two air pipes and the conveying module; Adjacent to the transport module; the two air diffusion plates close the air flow path between the two air pipes and the transport module; the two air diffusion plates are arranged with a plurality of air holes, and the air holes are along the width direction of the transport module arrangement.

Further, in the above-mentioned nitrogen box capable of preventing the plate from passing through continuously, each of the sealed boxes further includes a second exhaust diffusion plate, which is disposed in the exhaust chamber and located between the second exhaust pipe and the second exhaust pipe. Between the transport modules; the two exhaust diffusion plates are adjacent to the transport module; the two exhaust diffusion plates close the air flow path between the two exhaust pipes and the transport modules; the two exhaust diffusion plates are arranged with A plurality of exhaust holes are arranged along a width direction of the conveying module.

Further, in the above-mentioned nitrogen box for preventing the plate from passing through the continuous plate, the first opening and the fourth opening are both narrow and long openings.

In the following, with reference to the drawings and the preferred embodiments of this creation, the technical means adopted by this creation to achieve the intended purpose is further explained.

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 10 and two sealed boxes 20.

The foregoing main box 10 is a continuous through-plate nitrogen baking box in this embodiment. The opposite two wall surfaces each have a main box opening 11 therethrough. The two sealed boxes 20 are connected to the opposite two wall surfaces of the main box 10 respectively. The second main box opening 11 is closed to prevent the nitrogen in the sealed box 20 from leaking from the main box opening 11; the flexible board 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; at the time of production, the sealed box 20 on one side of the main box 10 of the soft board A penetrates into this creation, and then enters the main box through the main box opening 11 on the side of the main box 10 In the body 10, after the soft board A is baked in the main cabinet 10, it leaves the main cabinet 10 through the main cabinet opening 11 on the other side of the main cabinet 10, and then is sealed from the other side of the main cabinet 10. Boxes 20 are from 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 is from the same main box. It is also possible for the cabinet opening 11 to enter and leave the main cabinet 10; in addition, the main cabinet 10 is not limited to a nitrogen baking box, and may also be a nitrogen storage box for temporarily storing the flexible board A.

Please refer to FIG. 2, FIG. 4 and FIG. 5, the sealed box 20 includes a nitrogen outer wall 21, a nitrogen partition 22, an air partition 23 and an air outer wall 24 arranged in order; the nitrogen outer wall 21 and the air outer wall 24 respectively form two opposite side walls of the sealed box 20, and 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 The corresponding main cabinet 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 conveyance Axis.

The sealed box 20 includes a nitrogen chamber 25, an exhaust chamber 26, and an air chamber 27, which are all formed in the sealed box 20 in this order. Among them, the nitrogen chamber 25 is located between the nitrogen outer wall 21 and the nitrogen partition plate 22. The exhaust chamber 26 is located between the nitrogen partition 22 and the air partition 23, and 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 The exhaust chamber 26 communicates with the air chamber 27 through the third opening 231 of the air partition 23; in this embodiment, the first opening 211 and the fourth opening 241 of the sealed box 20 are narrow openings, and The periphery of the opening is immediately adjacent to the opposite sides of the soft plate A to reduce gas leakage.

Please further refer to FIG. 2, FIG. 3 and FIG. 5, each sealed box 20 includes a transport module 30, two nitrogen pipes 40, two air pipes 50 and two exhaust pipes 60, and in this embodiment, further includes A pressurizing device, two nitrogen diffusion plates 70, two air diffusion plates 80, and two exhaust gas 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 provided in the software correspondingly. The opposite sides of the plate A are sandwiched with the flexible plate A; the conveying module 30 conveys the flexible plate A along the conveying axis. Specifically, when the flexible plate A enters the seal from the fourth opening 241 or the first opening 211 of the sealed box 20 After the box 20, the conveying module 30 sandwiches the flexible board A, and conveys the flexible board A along the conveying axis to the opening on the opposite side of the sealed box 20.

In this embodiment, the upper conveying device 31 is a plurality of rollers arranged on the top side of the soft plate A along the conveying axis; the lower conveying device 32 is a plurality of rollers arranged on the bottom side of the soft plate A, and the rollers of the lower conveying device 32 are respectively provided The flexible board A is sandwiched between the rollers of the upper conveying device 31 to maintain the position of the flexible board A, and to prevent the flexible board A from 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 surface of each roller of the conveying module 30 is polytetrafluoroethylene (Teflon) to avoid scratching the soft board A, but the material is not limited to this.

In this embodiment, the conveyance module 30 further has at least one conveyance motor 33 and at least one transmission belt 34, and further, the number of the conveyance motors 33 and the transmission belts 34 are plural and further cooperate with the plurality of transmission gear pairs 35 Common use; one of the rollers of the lower conveying device 32 is driven by the conveying motor 33, and the power of the conveying motor 33 is sequentially transmitted to the rollers of the lower conveying device 32 through the transmission belt 34; the transmission gear pair 35 has two transmission gears 351, It is connected to one of the rollers of the upper conveying device 31 and the lower conveying device 32, and transmits the power of the conveying motor 33 from the roller of the lower conveying device 32 to the roller of the upper conveying device 31, so that the conveying motor 33 can drive the upper conveying device 31 The wheel turns.

The aforementioned conveying module 30 is a conveying module 30 conveyed in a single direction in this embodiment. The conveying module 30 carries the flexible board A into the main cabinet 10 through the sealed box 20 on the main cabinet 10 side. After A is baked in the main cabinet 10, it leaves the main cabinet 10 through the main cabinet opening 11 on the other side of the main cabinet 10; specifically, the conveying module 30 carries the flexible 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 to 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 is removed from the main box 10, but it is not limited to this. When the number of the main box openings 11 is only one, the conveying module 30 is a conveying module 30 having a bidirectional conveying capability so as to be able to pass through the same main The box opening 11 feeds the flexible board A into and out of the main box 10.

Please refer to FIG. 2, FIG. 5 and FIG. 6. The aforementioned nitrogen pipe 40 communicates with the nitrogen chamber 25, and the nitrogen pipe 40 delivers nitrogen gas to the nitrogen chamber 25. In this embodiment, the definition of the opening of the two nitrogen pipes 40 in the sealed box 20 It is the nitrogen inlet 41, and the two nitrogen inlets 41 are respectively located on the top and bottom sides of the flexible plate A, so that both sides of the flexible plate A can obtain sufficient nitrogen supply, and avoiding the obstruction of the flexible plate A to cause the nitrogen chamber 25 Adequate nitrogen supply cannot be obtained on one side, but it is not limited to this. The two nitrogen inlets 41 only need to be located on opposite sides of the conveying module 30 respectively. For example, when the present invention has a two nitrogen diffusion plate 70 described later, two The nitrogen diffusion plate 70 can evenly distribute the airflow on the opposite sides of the soft plate A. Therefore, the two nitrogen inlets 41 can also be arranged on the same side of the sealed box 20 from top to bottom. One of the nitrogen inlets 41 is conveyed toward the top side of the conveyor belt. Nitrogen, the other nitrogen inlet 41 conveys nitrogen toward the bottom side of the conveyor belt, and this 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 sufficient.

The aforementioned air pipe 50 communicates with the air chamber 27, and the air pipe 50 transports air toward the air chamber 27. Specifically, the air pipe 50 transports dry compressed air (CDA), but is not limited thereto. In this embodiment, The opening of the two air pipes 50 in the sealed box 20 is defined as an air inlet 51, and the relative position of the air inlet 51 and the conveying module 30 is the same as the relative position of the aforementioned nitrogen inlet 41 and the soft board A, and is not repeated here; this creation There may also 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.

One end of the exhaust pipe 60 communicates with the exhaust chamber 26, and the other end communicates with the outdoor. 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, and 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. There can be only one number of 60.

The aforementioned nitrogen diffusion plate 70 is disposed in the nitrogen chamber 25 and is located between the two nitrogen pipe 40 and the transport module 30; the two nitrogen diffusion plate 70 is adjacent to the transport module 30; the two nitrogen diffusion plate 70 closes the two nitrogen pipe 40 and The air flow path between the transport 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 transport modules 30; thereby, the nitrogen diffusion plates 70 can transport the nitrogen tubes 40 The flow of nitrogen gas is evenly distributed to each of the nitrogen holes 71 so that the airflow can be evenly distributed along the width direction of the flexible plate A on the upper side of the second opening 221 and the periphery of the lower opening.

The aforementioned air diffusion plate 80 is disposed in the air chamber 27 and is located between the two air pipes 50 and the transport module 30; 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 are as described above. The nitrogen diffusion plate 70 is substantially the same, except that the function of the air diffusion plate 80 is to evenly distribute the airflow of the air conveyed by the air pipe 50 to each air hole 81 so that the airflow can be evenly distributed in the width direction of the soft plate A. The upper and lower opening edges of the third opening 231.

The exhaust diffusion plate 90 is disposed in the exhaust chamber 26 and is located between the two exhaust pipes 60 and the transport 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 those of the aforementioned nitrogen diffusion plate 70, except that the exhaust diffusion plate 90 is provided in the exhaust chamber 26, and the airflow flows from the exhaust hole 91 to the exhaust pipe 60.

Please refer to FIG. 5 and FIG. 6 further, when the original is used, the conveying module 30 conveys the flexible board A through the sealed box 20 and the main box 10; two air pipes 50 are 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, so that the pressure of the air chamber 27 is higher than that of the exhaust chamber 26, and then the gas of the air chamber 27 is forced to flow through the air diffusion plate 80 toward the third opening 231; the air chamber The gas of 27 is rectified by the air holes 81 of the air diffusion plate 80 and is evenly distributed in the width direction of the soft plate A, so that the air can evenly flow through the narrow third opening 231 and flow toward the exhaust chamber 26. The air chamber 27 can form an air wall. The air wall prevents the nitrogen in the main cabinet 10 and the nitrogen chamber 25 from leaking into the workplace through the third opening 231. At the same time, the nitrogen pipe 40 is filled with nitrogen and formed into the nitrogen chamber 25. A nitrogen wall prevents air from penetrating the second opening 221 into the main cabinet 10, thereby maintaining the nitrogen concentration in the main cabinet 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 conveying device 32A of the conveying module 30A is a conveyor belt; the lower conveying device 32A runs through 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, the lower conveying device 32A and the upper conveying device 31A have A gap (as shown in FIG. 9), a flexible board (not shown) can be sandwiched between the lower conveying device 32A and the upper conveying device 31A to prevent the flexible plate from being displaced by the airflow; the material of the lower conveying device 32A is The mesh belt has a large number of mesh holes running through it to allow the airflow to penetrate easily, and will not hinder the gas flow in the sealed box 20A.

In addition, in this embodiment, one side of the two sealed boxes 20A opposite to the main box body 10A is provided with a belt drive device B, and an endless belt is connected between the two belt drive devices B and forms two seals. The lower conveying device 32A in the box 20A; the conveyor 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 rollers, to avoid the lower conveying device 32A from shifting .

To sum up, the creation of this creation is by setting a sealed box at the opening of the main box of the nitrogen box. The sealed box has a nitrogen chamber, an exhaust chamber, and an air chamber arranged in order. 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 opening of the main box to maintain the nitrogen concentration of the main box, and the air wall can block Nitrogen leaks into the room and maintains the safety of the maintenance personnel. In addition, the upper and lower conveying devices of the conveying module sandwich the flexible boards to limit the offset of the flexible boards due to the influence of airflow, thereby avoiding deformation or damage of the flexible boards. Increase yield.

The above description is only the preferred embodiment of the creation, and does not limit the creation in any form. Although the creation has been disclosed as above with the preferred embodiment, 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 equivalent embodiments without departing from the scope of the technical solution of the creation. Any content that does not depart from the technical solution of the creation according to this The technical essence of the creation Any simple modifications, equivalent changes, and modifications made to the above embodiments still fall within the scope of this creative technical solution.

10‧‧‧ main box

11‧‧‧ main box opening

20‧‧‧Sealed Box

21‧‧‧ nitrogen outer wall

211‧‧‧First opening

22‧‧‧Nitrogen separator

221‧‧‧Second opening

23‧‧‧ air partition

231‧‧‧Third opening

24‧‧‧Air Outer Wall

241‧‧‧ fourth opening

25‧‧‧ nitrogen chamber

26‧‧‧Exhaust chamber

27‧‧‧air chamber

30‧‧‧Conveying module

31‧‧‧up conveyor

32‧‧‧ lower conveyor

33‧‧‧Conveying motor

34‧‧‧Drive Belt

35‧‧‧ transmission gear pair

351‧‧‧drive gear

40‧‧‧nitrogen tube

41‧‧‧Nitrogen inlet

50‧‧‧air pipe

51‧‧‧air inlet

60‧‧‧Exhaust pipe

61‧‧‧ exhaust port

70‧‧‧Nitrogen diffusion plate

71‧‧‧nitrogen hole

80‧‧‧Air diffuser

81‧‧‧air hole

90‧‧‧Exhaust diffuser

91‧‧‧ exhaust hole

A‧‧‧ soft board

10A‧‧‧Main Box

11A‧‧‧Main cabinet opening

20A‧‧‧Sealed Box

30A‧‧‧Transfer Module

31A‧‧‧up conveyor

32A‧‧‧down conveyor

211A‧‧‧First opening

221A‧‧‧Second opening

231A‧‧‧Third opening

241A‧‧‧Fourth opening

B‧‧‧ Conveyor Belt Drive B

B1‧‧‧Guide Wheel

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

FIG. 2 is a schematic three-dimensional sectional view of the first embodiment of the present invention.

FIG. 3 is a perspective external view of a conveying module according to the first embodiment of the present invention.

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

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

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

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

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

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

Claims (10)

A nitrogen box capable of preventing plate deviation and continuous through plate is used to process a circuit board. The nitrogen box which prevents plate deviation and continuous through plate includes:
A main box body whose wall surface penetrates at least one main box body opening;
At least one sealed box connected to the main box and closing the opening of the at least one main box, the number of the at least one sealed box is the same as the number of the opening of the at least one main box, and each of the sealed boxes corresponds to one of the Main box opening, each sealed box contains:
A nitrogen outer wall, a nitrogen baffle, an air baffle, and an air outer wall are sequentially arranged, wherein the nitrogen outer wall and the air outer wall respectively form opposite two side walls of the sealed box, and the nitrogen outer wall closes the corresponding main box. A first opening penetrates the nitrogen outer wall, and communicates with the corresponding main cabinet opening of the main cabinet; a second opening penetrates through the nitrogen partition, a third opening penetrates through the air partition, and the air A fourth opening is penetrated through the outer wall; a connection line 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 this order 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 in the nitrogen partition And the air partition; the air chamber is located between the air partition and the air outer wall; the nitrogen chamber and the exhaust chamber communicate with each other through the second opening; the air chamber and the exhaust chamber pass through the first opening Three openings communicate;
A transport module is provided in the sealed box and is located in the nitrogen chamber, the exhaust chamber, and the air chamber; the transport module is used to transport the circuit board along the transport axis; the transport module has an upper A conveying device and a lower conveying device, which are arranged correspondingly on opposite sides of the circuit board and sandwich the circuit board;
At least one nitrogen tube that communicates with the nitrogen chamber, and the at least one nitrogen tube transports nitrogen toward the nitrogen chamber;
At least one exhaust pipe, one end of which is connected to the exhaust chamber, and the other end of which is connected to the outside;
At least one air pipe communicates with the air chamber, and the at least one air pipe delivers air toward the air chamber. The continuous through-plate nitrogen box capable of preventing plate deflection according to claim 1, wherein the upper conveying device of the conveying module has a plurality of rollers arranged along the conveying axis. The nitrogen box capable of preventing continuous deviation of the plate 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 Correspond to the positions of the rollers on the conveying device. As described in claim 2, the nitrogen box capable of preventing continuous deviation of the plate from passing through the plate, wherein the lower conveying device of the conveying module is a conveying belt, which sequentially passes through the fourth opening of the sealed box, the third The opening, the second opening, the first opening, and the corresponding main box opening. The nitrogen box capable of preventing plate deviation and continuous through plate as described in claim 4, wherein the material of the conveyor belt is a mesh belt. As described in claim 2, the nitrogen box capable of preventing the plate from passing through the plate continuously, wherein the outer side of the rollers is made of polytetrafluoroethylene. According to any one of the claims 1 to 6, the nitrogen box capable of preventing the plate from passing through the plate continuously, wherein the number of the at least one nitrogen pipe of each of the sealed boxes is two, and the two nitrogen pipes are in the sealed box. The openings are 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 pipe is two, and the openings of the two air pipes in the sealed box are respectively located on opposite sides of the circuit board. The nitrogen box capable of preventing the plate from passing through continuously as described in claim 7, wherein each of the sealed boxes further includes a two nitrogen diffusion plate, which is disposed in the nitrogen chamber and is respectively located in the two air pipes and the conveying mold. Between two groups; the two nitrogen diffusion plate is adjacent to the transportation module; the two nitrogen diffusion plate closes the air flow path between the two nitrogen tube and the transportation module; the two nitrogen diffusion plate is arranged with a plurality of nitrogen holes, etc. The nitrogen holes are arranged along the width direction of the conveying module;
Two air diffusion plates are disposed in the air chamber and are respectively located between the two air pipes and the transportation module; the two air diffusion plates are adjacent to the transportation module; the two air diffusion plates close the two air pipes The air flow path between the conveying module and 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. The nitrogen box capable of preventing the plate from passing through continuously as described in claim 7, wherein each of the sealed boxes further includes a second exhaust diffusion plate, which is disposed in the exhaust chamber and is located between the second exhaust pipe and the Between the transport modules; the two exhaust diffusion plates are adjacent to the transport module; the two exhaust diffusion plates close the air flow path between the two exhaust pipes and the transport modules; the two exhaust diffusion plates are arranged with A plurality of exhaust holes are arranged along a width direction of the conveying module. According to any one of the claims 1 to 6, the nitrogen box capable of preventing the plate from passing through the plate continuously, wherein the first opening and the fourth opening are both narrow and long openings.