A wind knife device for drying PCB boards

Abstract

The present application provides a wind knife device for air-drying a PCB board, which relates to the field of printed circuit boards, including an air inlet pipe, a wind knife baffle frame fixedly connected to the air inlet pipe, and an air outlet frame arranged on the wind knife baffle frame, a wind knife adjustment module arranged inside the air outlet frame, and a wind knife opening and two round holes are provided on the top of the air outlet frame, a mounting module is arranged on the outer wall of the wind knife baffle frame and the air outlet frame, and a connecting plate is fixedly connected to the outer wall of the air inlet pipe. The present application adopts a soft air outlet plate to adjust and change the adjustment air outlet as a whole, and the problems of the traditional wind knife device can be avoided by adjusting the adjustment air outlet as a whole, that is, the air outlet in the area will be deformed when a single bolt is adjusted, and the deformation of the air outlet caused by the adjacent bolts not being adjusted occurs, and the device ensures the uniformity of the air outlet by avoiding the deformation of the air outlet, thereby increasing the air-drying effect and air-drying quality of the PCB board.

Description

Technical Field

[0001] The invention relates to the field of printed circuit boards, and in particular to an air knife device for air-drying a PCB board. Background Art

[0002] Glass substrate is a thin glass sheet with an extremely flat surface. It is mainly used to form liquid crystal display devices and is one of the key basic materials in the flat panel display industry. It is manufactured by float glass, overflow down-pull method or slit down-pull method, and has high flatness and transparent conductive patterns.

[0003] PCB, Chinese name for printed circuit board, also known as printed circuit board, is an important electronic component, the support of electronic components, and the carrier for the electrical connection of electronic components. Because it is made by electronic printing, it is called a "printed" circuit board.

[0004] The air outlet of the existing wind knife device is adjusted in size by adjusting bolts, so multiple bolts need to be adjusted separately during adjustment, which is inconvenient to operate. Moreover, when adjusting a single bolt, the air outlet in that area will be deformed as the bolt is adjusted, but the adjacent bolts are not adjusted, which can easily cause the air outlet to deform and affect the uniformity of the air outlet.

[0005] Therefore, we make improvements on this and propose an air knife device for air-drying PCB boards. Summary of the invention

[0006] The purpose of the present invention is to address the problem that the existing wind knife device needs to be adjusted individually for multiple bolts, which is inconvenient to operate and easily causes deformation of the air outlet during adjustment, thereby affecting the uniformity of the air outlet.

[0007] In order to achieve the above-mentioned purpose of the invention, the present invention provides an air knife device for air-drying a PCB board to improve the above-mentioned problem.

[0008] The specific application is as follows:

[0009] It includes an air inlet pipe, a wind knife baffle frame is fixedly connected to the air inlet pipe, and an air outlet frame is arranged on the wind knife baffle frame, a wind knife adjustment module is arranged inside the air outlet frame, and a wind knife opening and two circular holes are opened on the top of the air outlet frame, a mounting module is arranged on the outer wall of the wind knife baffle frame and the air outlet frame, and a connecting plate is fixedly connected to the outer wall of the air inlet pipe, a pipeline interface is fixedly connected to the connecting plate, and an air filter replacement module is arranged on the pipeline interface and the air inlet pipe;

[0010] The wind knife adjustment module includes a soft air outlet plate, which is located inside the air outlet frame, and has a plurality of adjustable air outlets, and the sizes of the plurality of adjustable air outlets vary one by one;

[0011] The installation module includes two card connection frames, which are respectively located on two sides of the wind knife block frame, and the two card connection frames are provided with card interfaces;

[0012] The air filter replacement module includes a replacement bracket, which is located below the pipeline interface and the air inlet pipe, and three replacement pipes are fixedly connected to the replacement bracket, and the filter element body is arranged inside the four replacement pipes.

[0013] As a preferred technical solution of the present application, the wind knife adjustment module also includes four shaft rods, which are respectively arranged on the outer walls of both sides of the air outlet frame, one end of the four shaft rods is fixedly connected to the mounting frame, the inner walls of the four mounting frames are fixedly connected to the inner ring of the clamping teeth, and the outer walls of the opposite sides of every two mounting frames are movably connected to the same adjusting roller, both ends of the two adjusting rollers are fixedly connected to the mounting blocks, the four mounting blocks are respectively located inside the four mounting frames, and the outer walls of the four mounting blocks are provided with multiple elastic clamps, which are respectively clamped with the four inner rings of the clamping teeth.

[0014] As a preferred technical solution of the present application, the inner walls of both sides of the air outlet frame are movably connected with two mounting shaft rods, the outer walls of the two mounting shaft rods are fixedly connected with guide rollers, the inner walls of the two guide rollers are in contact with the outer wall of the soft air outlet plate, the outer walls of the two mounting rods are movably connected with two pad racks, the two pad racks are movably connected with mounting rods, the outer walls of the two mounting rods are in contact with the inside of the two circular holes respectively, the bottom ends of the two mounting rods are fixedly connected with bottom plate parts, the top ends of the two mounting rods are fixedly connected with pressing parts, and the outer walls of the two mounting rods are provided with tension springs, the top ends of the two tension springs are respectively fixedly connected to the bottoms of the two pad racks, and the bottom ends of the two tension springs are respectively fixedly connected to the tops of the two bottom plate parts.

[0015] As a preferred technical solution of the present application, the outer walls of the two mounting rods are fixedly connected with the same padding member, the padding member is located inside the air outlet frame, the top inner wall of the air outlet frame is fixedly connected with an air outlet cushion layer, the soft air outlet plate passes through the padding member and the air outlet cushion layer, and the two ends of the soft air outlet plate are respectively fixedly connected to the inner walls of the two adjusting rollers.

[0016] As a preferred technical solution of the present application, the other ends of the four shaft rods are fixedly connected to a locking base, the four locking bases are all located outside the air outlet frame, one side outer wall of the four locking bases is provided with a locking groove, and the two side outer walls of the air outlet frame are fixedly connected to two fixing parts, telescopic spring rods are provided on the four fixing parts, every two adjacent telescopic spring rods are fixedly connected to the same locking plate frame, one side outer wall of the two locking plate frames is fixedly connected to a pull rod member, one side outer wall of the two locking plate frames is provided with a movable opening, the inner walls of the two movable openings are movably connected to two locking base blocks, the outer walls of the four locking base blocks facing the locking base are fixedly connected with locking blocks, and the four locking blocks are respectively plugged into the four locking grooves.

[0017] As a preferred technical solution of the present application, the air filter replacement module also includes a fixed frame and a fixed bracket, the fixed frame is fixedly connected to the outer wall of the pipeline interface, the fixed bracket is fixedly connected to the outer wall of the air inlet pipe, and a replacement rod is movably connected to the fixed bracket, and the replacement bracket is fixedly connected to the outer wall of the replacement rod.

[0018] As a preferred technical solution of the present application, a servo motor is fixedly connected to the fixed bracket, the output shaft of the servo motor is connected to one end of the replacement rod through a coupling, and two fixed plates are fixedly connected to the outer wall of the fixed bracket, one side outer wall of one of the fixed plates is provided with a fixing opening, and the inner wall of the fixing opening is fixedly connected to a fixing frame.

[0019] As a preferred technical solution of the present application, a connecting support plate is fixedly connected to the outer wall of one side of the fixing frame, and an installation opening is opened on the outer wall of one side of the connecting support plate. An electric telescopic rod is fixedly connected to the inner wall of the installation opening and the fixing frame, and the output ends of the two electric telescopic rods are fixedly connected to filter element push blocks, and the pipeline interface and the outer wall of the air inlet pipe are fixedly connected with an elastic sealing ring, and the outer wall of one replacement pipe is in contact with the inner walls of the two elastic sealing tubes.

[0020] As the preferred technical solution of the present application, the installation module also includes two installation plate frames, which are respectively fixedly connected to the outer walls on both sides of the wind knife baffle frame, and two circular openings are provided at the bottom of the two installation plate frames, and the outer walls on both sides of the two clamping frames are fixedly connected with fixed side parts, and the four fixed side parts are fixedly connected with installation rod racks, and the four installation rod racks pass through the four circular openings respectively, and the bottom ends of the two installation rod racks on the same side are fixedly connected with the same installation pull rod.

[0021] As the preferred technical solution of the present application, the outer walls of the four mounting rod racks are provided with pressure springs, the top ends of the four pressure springs are fixedly connected to the bottoms of the two mounting plate frames, the bottom ends of the four pressure springs are fixedly connected to the outer walls of the four mounting rod racks, and the outer walls on both sides of the air outlet frame are fixedly connected with wind frame connecting plates, the outer walls of the two wind frame connecting plates facing the air outlet frame are fixedly connected with mounting card plates, and the two mounting card plates are respectively clamped with four card interfaces.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] In the scheme of this application:

[0024] 1. In order to solve the problem that the wind knife device in the prior art needs to be adjusted individually for multiple bolts, which is inconvenient to operate, and the air outlet is easily deformed during adjustment, which affects the uniformity of the air outlet, the present application achieves the effect of convenient adjustment of the air volume of the wind knife by setting up a wind knife adjustment module. When adjusting, the device adopts a soft air outlet plate to adjust and change the adjustment air outlet as a whole, so as to increase the convenience of operation when the device is used. At the same time, by adjusting the adjustment air outlet as a whole, the problem of the traditional wind knife device can be avoided, that is, when a single bolt is adjusted, the air outlet in the area will be deformed, and the adjacent bolts are not adjusted to cause the air outlet to deform, thereby increasing the service life of the device when in use, and the device ensures the uniformity of the air outlet by avoiding the deformation of the air outlet, thereby increasing the air drying effect and air drying quality of the PCB board;

[0025] 2. Through the air filter replacement module, the air filter replacement module can filter the gas entering the air inlet pipe from the pipeline interface through the filter element body when in use, so that the gas is kept clean when entering the air inlet pipe, thereby avoiding the gas from polluting the surface of the PCB board when air-drying, so as to further increase the air-drying effect and air-drying quality of the device. When in use, the device can conveniently disassemble and reinstall the filter element body, and can quickly replace the filter element body, which increases the continuity of the device when in use, improves the use effect of the device, and solves the problem of dust and other impurities in the gas in the prior art;

[0026] 3. By setting up the installation module, the installation module can quickly connect the air outlet frame with the wind knife baffle when in use to complete the installation. There is no need to fix the air outlet frame and the wind knife baffle with bolts, which further increases the convenience of the device. At the same time, by avoiding the installation of bolts, it can solve the problems of bolt rust, thread slippage, etc., thereby increasing the use effect of the device. During disassembly and maintenance, the device can also quickly disassemble the air outlet frame and the wind knife baffle, further improving the use effect of the device and solving the problem of poor bolt fixing in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of the structure of the air knife device for air-drying the PCB board provided in this application;

[0028] Figure 2 A schematic diagram of the combined structure of the pipe interface and the air inlet pipe of the air knife device for air-drying the PCB board provided in this application;

[0029] Figure 3 A schematic diagram of the split structure of the air knife baffle frame and the air outlet frame of the air knife device for air-drying a PCB board provided in this application;

[0030] Figure 4 A schematic diagram of the structure of an air knife adjustment module of an air knife device for air-drying a PCB board provided in this application;

[0031] Figure 5 For this application Figure 4 Schematic diagram of partial structural disassembly;

[0032] Figure 6 A schematic diagram of the combined structure of the mounting shaft and the pad frame of the air knife device for air-drying the PCB board provided in this application;

[0033] Figure 7 A schematic diagram of the structure of the air filter replacement module of the air knife device for air-drying the PCB board provided in this application;

[0034] Figure 8 A schematic diagram of the combined structure of a replacement bracket and a replacement pipe for the air knife device for air-drying a PCB board provided in this application;

[0035] Fig. 9 A schematic diagram of the installation module structure of the air knife device for air-drying PCB boards provided in this application;

[0036] Fig.10 This is a schematic diagram of the disassembled structure of the installation card plate and the card frame of the wind knife device for air-drying PCB boards provided in this application.

[0037] Indicated in the figure:

[0038] 1. Air inlet duct; 2. Wind knife baffle frame; 3. Installation module; 301. Installation plate frame; 302. Wind frame connecting plate; 303. Card frame; 304. Pressure spring; 305. Installation rod; 306. Card interface; 307. Fixed side piece; 308. Installation card plate; 309. Installation rod frame; 4. Air outlet frame; 5. Wind knife adjustment module; 501. Air outlet cushion layer; 502. Pressing piece; 503. Installation rod; 504. Locking plate frame; 505. Pull rod; 506. Shaft rod; 507. Soft air outlet plate; 508. Adjust air outlet; 509. Fixing piece; 510. Telescopic spring rod; 511. Locking base block; 512. Movable port; 513. Installation block; 514. Elastic card; 515. Locking block ; 516, locking groove; 517, locking base; 518, mounting frame; 519, inner ring of latch teeth; 520, pad member; 521, guide roller; 522, tension spring; 523, mounting shaft; 524, bottom plate; 525, pad frame; 526, adjusting roller; 6, air filter replacement module; 601, elastic sealing ring; 602, replacement pipe fitting; 603, filter element push block; 604, electric telescopic rod; 605, connecting support plate; 606, fixing frame; 607, filter element body; 608, fixing frame; 609, fixing bracket; 610, replacement rod; 611, fixing plate; 612, replacement bracket; 613, servo motor; 7, pipeline interface; 8, connecting plate; 9, round hole; 10, wind knife edge. DETAILED DESCRIPTION

[0039] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0040] As described in the background art, when adjusting the wind knife device, multiple bolts need to be adjusted individually, which is inconvenient to operate. Moreover, when adjusting, the air outlet is easily deformed, affecting the uniformity of air outlet.

[0041] In order to solve this technical problem, the present invention provides an air knife device for air-drying a PCB board, which is used to adjust the size of the air outlet.

[0042] Specifically, please refer to Figure 1-10 The PCB board air drying air knife device specifically includes:

[0043] An air inlet pipe 1, a wind knife baffle frame 2 is fixedly connected to the air inlet pipe 1, and an air outlet frame 4 is arranged on the wind knife baffle frame 2, a wind knife adjustment module 5 is arranged inside the air outlet frame 4, and a wind knife opening 10 and two circular holes 9 are opened on the top of the air outlet frame 4, a mounting module 3 is arranged on the outer wall of the wind knife baffle frame 2 and the air outlet frame 4, and a connecting plate 8 is fixedly connected to the outer wall of the air inlet pipe 1, a pipeline interface 7 is fixedly connected to the connecting plate 8, and an air filter replacement module 6 is arranged on the pipeline interface 7 and the air inlet pipe 1;

[0044] The wind knife adjustment module 5 includes a soft air outlet plate 507, which is located inside the air outlet frame 4. The soft air outlet plate 507 is provided with a plurality of adjustment air outlets 508, and the sizes of the plurality of adjustment air outlets 508 vary one by one.

[0045] The installation module 3 includes two card connection frames 303, which are respectively located on two sides of the wind knife block frame 2, and the two card connection frames 303 are provided with card interfaces 306;

[0046] The air filter replacement module 6 includes a replacement bracket 612, which is located below the pipeline interface 7 and the air inlet pipe 1, and three replacement pipes 602 are fixedly connected to the replacement bracket 612, and the four replacement pipes 602 are each provided with a filter element body 607 inside.

[0047] The wind knife device for air-drying PCB boards provided by the present invention, when adjusting, the device adopts a soft air outlet plate 507 to adjust and change the adjusting air outlet 508 as a whole, so as to increase the operating convenience when the device is used. At the same time, by adjusting the adjusting air outlet 508 as a whole, the problems of traditional wind knife devices can be avoided, and the uniformity of air outlet is ensured, thereby increasing the air-drying effect and air-drying quality of the PCB board; when the air filter replacement module 6 is in use, it can filter the gas entering the air inlet pipe 1 from the pipeline interface 7 through the filter element body 607, so as to keep the gas clean when entering the air inlet pipe 1, thereby avoiding the gas from polluting the surface of the PCB board when air-drying; when the installation module 3 is in use, it can quickly connect the air outlet frame 4 with the wind knife baffle to complete the installation, and there is no need to fix the air outlet frame 4 and the wind knife baffle with bolts, which further increases the convenience of the device.

[0048] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0049] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0050] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0051] Example 1, please refer to Figure 1-Figure 6 , a wind knife device for drying PCB boards, wherein the wind knife adjustment module 5 also includes four shaft rods 506, the four shaft rods 506 are respectively arranged on the outer walls of both sides of the air outlet frame 4, one end of the four shaft rods 506 is fixedly connected to a mounting frame 518, the inner walls of the four mounting frames 518 are fixedly connected to a latch inner ring 519, and the outer walls of the opposite sides of each two mounting frames 518 are connected to the same adjustment roller 526 through a bearing, and both ends of the two adjustment rollers 526 are fixedly connected to The four mounting blocks 513 are respectively located inside the four mounting frames 518, and the outer walls of the four mounting blocks 513 are provided with multiple elastic clips 514, and the multiple elastic clips 514 are respectively engaged with the four toothed inner rings 519; when adjusting, two of the mounting frames 518 are locked, and when the adjusting roller 526 rotates, the elastic clips 514 located inside the two locked mounting frames 518 will be deformed to pass over the original teeth of the toothed inner ring 519 engaged with it.

[0052] Please refer to Figure 4-Figure 6 , a wind knife device for drying a PCB board, wherein the inner walls of the two sides of the air outlet frame 4 are connected to two mounting shafts 523 through bearings, and the outer walls of the two mounting shafts 523 are fixedly connected to guide rollers 521, and the inner walls of the two guide rollers 521 are in contact with the outer wall of the soft air outlet plate 507, and the outer walls of the two mounting rods 503 are connected to two pad frames 525 through bearings, and the two pad frames 525 are slidably connected with mounting rods 503, and the outer walls of the two mounting rods 503 are respectively in contact with the inside of the two circular holes 9, and the bottom ends of the two mounting rods 503 are fixedly connected to the bottom plate 524, and the top ends of the two mounting rods 503 are fixedly connected to the pressing parts 502, and the outer walls of the two mounting rods 503 are provided with tension springs 522, and the top ends of the two tension springs 522 are respectively fixedly connected to the bottoms of the two pad frames 525, and the bottom ends of the two tension springs 522 are respectively fixedly connected to the tops of the two bottom plate members 524.

[0053] Please refer to Figure 4-Figure 6, a wind knife device for air-drying a PCB board, wherein the outer walls of the two mounting rods 503 are fixedly connected with the same pad 520, the pad 520 is located inside the air outlet frame 4, and the top inner wall of the air outlet frame 4 is fixedly connected with an air outlet cushion 501, the soft air outlet plate 507 passes through the pad 520 and the air outlet cushion 501, and the two ends of the soft air outlet plate 507 are respectively fixedly connected to the inner walls of two adjusting rollers 526; after adjustment, the tension spring 522 will drive the bottom plate 524 and the mounting rod 503 to rise, and then drive the pad 520 to rise and contact with the soft air outlet plate 507, so that the pad 520 and the air outlet cushion 501 clamp and fix the surrounding area of ​​the adjusting air outlet 508 of the soft air outlet plate 507.

[0054] Please refer to Figure 4-Figure 6 , a wind knife device for air-drying a PCB board, the other ends of the four shaft rods 506 are fixedly connected to a locking base 517, the four locking bases 517 are all located outside the air outlet frame 4, one side outer wall of the four locking bases 517 is provided with a locking groove 516, and the outer walls on both sides of the air outlet frame 4 are fixedly connected to two fixing members 509, and the four fixing members 509 are provided with telescopic spring rods 510, and each of two adjacent telescopic spring rods 510 is fixedly connected to the same locking plate frame 504, and one side outer wall of the two locking plate frames 504 is fixedly connected to a pull rod member 505, and the two locking plate frames A movable opening 512 is provided on one side outer wall of 504, and two locking base blocks 511 are slidably connected to the inner walls of the two movable openings 512. The outer walls of the four locking base blocks 511 facing the locking base 517 are fixedly connected with locking blocks 515, and the four locking blocks 515 are respectively plugged into four locking grooves 516; pulling the pull rod 505 causes the locking plate frame 504 to drive the locking base blocks 511 and the locking blocks 515 to move, thereby separating the locking blocks 515 from the locking grooves 516, and then moving the positions of two of the locking base blocks 511 to cancel the locking of two of the locking bases 517.

[0055] The device adopts a soft air outlet plate 507 to adjust the adjustable air outlet 508 as a whole. By adjusting the adjustable air outlet 508 as a whole, the problems of the traditional wind knife device can be avoided, that is, the air outlet in this area will be deformed when a single bolt is adjusted, and the adjacent bolts are not adjusted to cause the air outlet to deform. The device ensures the uniformity of air outlet by avoiding the deformation of the air outlet, thereby increasing the air-drying effect and air-drying quality of the PCB board.

[0056] Embodiment 2 further optimizes the air knife device for air-drying the PCB board provided in Embodiment 1. Specifically, Figure 1 , Figure 2 , Figure 7 and Figure 8As shown, the air filter replacement module 6 also includes a fixing frame 606 and a fixing bracket 609, the fixing frame 606 is fixedly connected to the outer wall of the pipe interface 7, the fixing bracket 609 is fixedly connected to the outer wall of the air inlet pipe 1, and a replacement rod 610 is connected to the fixing bracket 609 through a bearing, and the replacement bracket 612 is fixedly connected to the outer wall of the replacement rod 610.

[0057] Further, such as Figure 7 and Figure 8 As shown, a servo motor 613 is fixedly connected to the fixed frame 606, and the output shaft of the servo motor 613 is connected to one end of the replacement rod 610 through a coupling, and two fixed plates 611 are fixedly connected to the outer wall of the fixed bracket 609, one of the fixed plates 611 has a fixing opening on the outer wall on one side, and a fixing frame 608 is fixedly connected to the inner wall of the fixing opening; the servo motor 613 drives the replacement rod 610 to rotate, and the replacement bracket 612 and the replacement pipe 602 can be driven to rotate through the replacement rod 610 to replace the replacement pipe 602 and the filter element body 607 inside it.

[0058] Further, such as Figure 7 and Figure 8 As shown, a connecting support plate 605 is fixedly connected to an outer wall of one side of the fixing frame 606, and an installation opening is opened on an outer wall of one side of the connecting support plate 605. An electric telescopic rod 604 is fixedly connected to the inner wall of the installation opening and the fixing frame 608. The output ends of the two electric telescopic rods 604 are fixedly connected to filter element push blocks 603, and the pipeline interface 7 and the outer wall of the air inlet pipe 1 are fixedly connected with elastic sealing rings 601, and the outer wall of one replacement pipe 602 is in contact with the inner walls of the two elastic sealing tubes; the filter element push block 603 is driven by the electric telescopic rod 604 to push the filter element body 607 out of the replacement pipe 602 for disassembly, and then the filter element push block 603 is driven by another electric telescopic rod 604 to push the filter element body 607 to be installed into the replacement pipe 602.

[0059] When the air filter replacement module 6 is in use, it can filter the gas entering the air inlet pipe 1 from the pipeline interface 7 through the filter element body 607, so that the gas remains clean when entering the air inlet pipe 1, thereby preventing the gas from contaminating the surface of the PCB board when it is air-dried. When in use, the device can conveniently disassemble and reinstall the filter element body 607, and at the same time realize rapid replacement of the filter element body 607, thereby increasing the continuity of the device when in use.

[0060] Embodiment 3 further optimizes the wind knife device for air-drying the PCB board provided in Embodiment 1 or 2. Specifically, Figure 1 , Fig. 9 and Fig.10As shown, the installation module 3 also includes two installation plate frames 301, and the two installation plate frames 301 are respectively fixedly connected to the outer walls on both sides of the wind knife baffle frame 2. Two circular openings are opened at the bottom of the two installation plate frames 301, and the outer walls on both sides of the two clamping frames 303 are fixedly connected with fixed side parts 307, and the four fixed side parts 307 are fixedly connected with installation rod frames 309. The four installation rod frames 309 pass through the four circular openings respectively, and the bottom ends of the two installation rod frames 309 on the same side are fixedly connected with the same installation pull rod 305.

[0061] Further, such as Fig. 9 and Fig.10 As shown, the outer walls of the four mounting rod frames 309 are each provided with a pressure spring 304, the top ends of the four pressure springs 304 are respectively fixedly connected to the bottom ends of the two mounting plate frames 301, the bottom ends of the four pressure springs 304 are respectively fixedly connected to the outer walls of the four mounting rod frames 309, and the outer walls on both sides of the air outlet frame 4 are both fixedly connected with the wind frame connecting plates 302, the outer walls on the side of the two wind frame connecting plates 302 facing the air outlet frame 4 are both fixedly connected with the mounting clamping plates 308, and the two mounting clamping plates 308 are respectively clamped with the four clamping interfaces 306; the mounting pull rod 305 is lifted, the pressure spring 304 is compressed, the clamping frame 303 rises, the mounting clamping plate 308 is inserted into the clamping frame 303, so that the mounting clamping plate 308 is clamped with the clamping interface 306, and then the mounting pull rod 305 is released.

[0062] When in use, the installation module 3 can quickly connect the air outlet frame 4 to the wind knife baffle, without the need to fix the air outlet frame 4 and the wind knife baffle with bolts, thereby increasing the convenience of the device. During disassembly and maintenance, the device can also quickly disassemble the air outlet frame 4 and the wind knife baffle, further improving the use effect of the device.

[0063] The use process of the air knife device for air-drying a PCB board provided by the present invention is as follows:

[0064] During installation, the installation rod 305 is lifted, the pressure spring 304 is compressed, and the card frame 303 rises. At this time, the air outlet frame 4 is set on the wind knife frame 2, so that the air outlet frame 4 drives the wind frame connecting plate 302 to move, and then the wind frame connecting plate 302 inserts the installation card plate 308 into the card frame 303, so that the installation card plate 308 is carded with the card interface 306, and then the installation rod 305 is released, the pressure spring 304 is reset, and the pressure spring 304 drives the installation rod frame 309 to move downward, and then drives the fixed side piece 307 and the card frame 303 to descend, so that the card frame 303 pulls down the installation card plate 308 to increase the installation stability of the air outlet frame 4, and the installation is completed;

[0065] When adjusting, pull the pull rod 505 to stretch the telescopic spring rod 510, so as to drive the locking plate frame 504, the locking base block 511 and the locking block 515 to move, thereby separating the locking block 515 from the locking groove 516, and then move the positions of two of the locking base blocks 511, and release the pull rod 505 to reset the locking plate frame 504 to cancel the lock of two of the locking bases 517, and then press the pressing member 502 downward, so that the pressing member 502 drives the mounting rod 503 and the bottom plate 524 to descend, so that the tension spring 522 stretches, so that the pad 520 is separated from the soft tuyere plate 507, and at this time, the two unlocked locking bases 517 are pushed, so that the two locking bases 517 drive the mounting frame 518 to move to the opposite side, thereby making the two mounting frames 518 contact and squeeze the mounting block 513 inside it, thereby increasing its surface friction. The spring 526 is rotated to drive the adjusting roller 526 on this side, and the elastic clamp 514 and the inner ring 519 of the clamping teeth are matched to make the elastic clamp 514 and the inner ring 519 of the clamping teeth of the two mounting frames 518 bear a greater degree of rotational torque than the other two during rotation, so that the elastic clamp 514 located inside the two locked mounting frames 518 is deformed to pass over the original clamping teeth of the inner ring 519 of the clamping teeth connected thereto, thereby rotating the adjusting roller 526 on this side, loosening the soft air outlet plate 507 thereon, so that the other adjusting roller 526 tightens the soft air outlet plate 507 to switch to different sizes of adjusting air outlets 508. At the same time, during adjustment, the blocking of the elastic clamp 514 and the inner ring 519 of the clamping teeth in the two locked mounting frames 518 can make the soft air outlet plate 507 tight, thereby preventing the adjusting air outlet 508 from being deformed and ensuring the air outlet effect, so as to complete the adjustment.

[0066] After adjustment, release the pressing member 502, and the tension spring 522 will drive the bottom plate member 524 and the mounting rod member 503 to rise, thereby driving the pad member 520 to rise and contact the soft air outlet plate 507, so that the pad member 520 and the air outlet cushion layer 501 clamp and fix the periphery of the regulating air outlet 508 of the soft air outlet plate 507, further ensuring the stability of the regulating air outlet 508, and then start the equipment to air dry the PCB board;

[0067] During the air drying process, the gas enters the replacement pipe 602, is filtered by the filter element body 607 inside the replacement pipe 602, and is then transported to the air intake pipe for air drying.

[0068] As the filtration is in progress, when the filter element body 607 needs to be replaced, the servo motor 613 is started, and the servo motor 613 drives the replacement rod 610 to rotate, thereby driving the replacement bracket 612 to rotate, so that the replacement bracket 612 can remove the replacement pipe 602, and at the same time, the replacement pipe 602 to be replaced can be moved to the removed replacement pipe 602 to complete the replacement;

[0069] During the replacement process, the filter element body 607 inside the replacement tube 602 is pushed out from the replacement tube 602 by the filter element push block 603 driven by the electric telescopic rod 604 for disassembly, and then it is rotated again by the servo motor 613, and the filter element body 607 to be installed is placed inside the replacement tube 602, and another electric telescopic rod 604 is started to drive the filter element push block 603 to install it in place to complete the replacement process.

[0070] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0071] Obviously, the embodiments described above are only some embodiments of the present invention, rather than all embodiments. The preferred embodiments of the present invention are given in the accompanying drawings, but they do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific embodiments, or to perform equivalent replacements for some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of the present invention, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the present invention.

Claims

1. A wind knife device for drying PCB boards, characterized in that: The invention comprises an air inlet pipe (1), the air inlet pipe (1) being fixedly connected to a wind knife baffle frame (2), and an air outlet frame (4) being arranged on the wind knife baffle frame (2), a wind knife adjustment module (5) being arranged inside the air outlet frame (4), and a wind knife opening (10) and two circular holes (9) being opened on the top of the air outlet frame (4), a mounting module (3) being arranged on the outer wall of the wind knife baffle frame (2) and the air outlet frame (4), and a connecting plate (8) being fixedly connected to the outer wall of the air inlet pipe (1), a pipeline interface (7) being fixedly connected to the connecting plate (8), and an air filter replacement module (6) being arranged on the pipeline interface (7) and the air inlet pipe (1); The wind knife adjustment module (5) comprises a soft air outlet plate (507), the soft air outlet plate (507) is located inside the air outlet frame (4), a plurality of adjustment air outlets (508) are provided on the soft air outlet plate (507), and the sizes of the plurality of adjustment air outlets (508) vary one by one; The installation module (3) comprises two card connection frames (303), the two card connection frames (303) are respectively located on two sides of the wind knife baffle frame (2), and the two card connection frames (303) are both provided with a card interface (306); The air filter replacement module (6) comprises a replacement bracket (612), the replacement bracket (612) being located below the pipeline interface (7) and the air inlet pipe (1), and three replacement pipes (602) being fixedly connected to the replacement bracket (612), and filter element bodies (607) are all arranged inside the three replacement pipes (602); The wind knife adjustment module (5) further comprises four shaft rods (506), the four shaft rods (506) being respectively arranged on the outer walls of both sides of the air outlet frame (4), one end of each of the four shaft rods (506) being fixedly connected to a mounting frame (518), the inner walls of each of the four mounting frames (518) being fixedly connected to a latching inner ring (519), and the outer walls of the opposite sides of each of the two mounting frames (518) being movably connected to the same adjustment roller (526), ​​both ends of the two adjustment rollers (526) being fixedly connected to a mounting block (513), the four mounting blocks (513) being respectively located inside the four mounting frames (518), the outer walls of the four mounting blocks (513) being respectively provided with a plurality of elastic clips (514), the plurality of elastic clips (514) being respectively latched to the four latching inner rings (519); Two mounting shafts (523) are movably connected to the inner walls on both sides of the air outlet frame (4); guide rollers (521) are fixedly connected to the outer walls of the two mounting shafts (523); and the inner walls of the two guide rollers (521) are in contact with the outer wall of the soft air outlet plate (507).

2. The air knife device for air-drying a PCB board according to claim 1, characterized in that: The outer walls of the two mounting rods (503) are movably connected to two pad frames (525), and the two pad frames (525) are movably connected to the mounting rods (503). The outer walls of the two mounting rods (503) are respectively in contact with the inside of the two circular holes (9), and the bottom ends of the two mounting rods (503) are fixedly connected to the bottom plate (524). The top ends of the two mounting rods (503) are fixedly connected to the pressing parts (502), and the outer walls of the two mounting rods (503) are provided with tension springs (522), and the top ends of the two tension springs (522) are respectively fixedly connected to the bottoms of the two pad frames (525), and the bottom ends of the two tension springs (522) are respectively fixedly connected to the tops of the two bottom plate members (524).

3. The air knife device for air-drying a PCB board according to claim 2, characterized in that: The outer walls of the two mounting rods (503) are fixedly connected to a same pad member (520), the pad member (520) is located inside the air outlet frame (4), the top inner wall of the air outlet frame (4) is fixedly connected to an air outlet cushion layer (501), the soft air outlet plate (507) passes between the pad member (520) and the air outlet cushion layer (501), and the two ends of the soft air outlet plate (507) are respectively fixedly connected to the inner walls of the two adjusting rollers (526).

4. The air knife device for air-drying a PCB board according to claim 3, characterized in that: The other ends of the four shaft rods (506) are fixedly connected to a locking base (517), the four locking bases (517) are located outside the air outlet frame (4), one side outer wall of the four locking bases (517) is provided with a locking groove (516), and the two side outer walls of the air outlet frame (4) are fixedly connected to two fixing members (509), and the four fixing members (509) are provided with a telescopic spring rod (510), and each section of two adjacent telescopic spring rods (510) is fixedly connected to the same locking groove (516). A plate frame (504), one side outer wall of the two locking plate frames (504) is fixedly connected with a pull rod (505), one side outer wall of the two locking plate frames (504) is provided with a movable opening (512), the inner walls of the two movable openings (512) are movably connected with two locking base blocks (511), and one side outer wall of the four locking base blocks (511) facing the locking base (517) is fixedly connected with a locking block (515), and the four locking blocks (515) are respectively plugged into four locking grooves (516).

5. The air knife device for air-drying a PCB board according to claim 1, characterized in that: The air filter replacement module (6) further comprises a fixing frame (606) and a fixing bracket (609), wherein the fixing frame (606) is fixedly connected to the outer wall of the pipeline interface (7), the fixing bracket (609) is fixedly connected to the outer wall of the air inlet pipe (1), and a replacement rod (610) is movably connected to the fixing bracket (609), and the replacement bracket (612) is fixedly connected to the outer wall of the replacement rod (610).

6. The air knife device for air-drying a PCB board according to claim 5, characterized in that: A servo motor (613) is fixedly connected to the fixing frame (606), and an output shaft of the servo motor (613) is connected to one end of a replacement rod (610) via a coupling. Two fixing plates (611) are fixedly connected to the outer wall of the fixing bracket (609), wherein a fixing opening is provided on an outer wall of one side of one of the fixing plates (611), and a fixing frame (608) is fixedly connected to the inner wall of the fixing opening.

7. The air knife device for air-drying a PCB board according to claim 6, characterized in that: A connecting support plate (605) is fixedly connected to an outer wall of one side of the fixing frame (606); a mounting opening is provided on an outer wall of one side of the connecting support plate (605); an electric telescopic rod (604) is fixedly connected to the inner wall of the mounting opening and the fixing frame (608); a filter element push block (603) is fixedly connected to the output ends of the two electric telescopic rods (604); and elastic sealing rings (601) are fixedly connected to the outer wall of the pipeline interface (7) and the air inlet pipe (1); and an outer wall of one of the replacement pipe fittings (602) is in contact with the inner walls of the two elastic sealing rings (601).

8. The air knife device for air-drying a PCB board according to claim 1, characterized in that: The installation module (3) further comprises two installation plate frames (301), the two installation plate frames (301) being respectively fixedly connected to the outer walls on both sides of the wind knife baffle frame (2), two circular openings being provided at the bottom of the two installation plate frames (301), and the outer walls on both sides of the two clamping frames (303) being fixedly connected to fixed side pieces (307), the four fixed side pieces (307) being fixedly connected to installation rod frames (309), the four installation rod frames (309) respectively passing through the four circular openings, and the bottom ends of the two installation rod frames (309) on the same side being fixedly connected to the same installation pull rod (305).

9. The air knife device for air-drying a PCB board according to claim 8, characterized in that: The outer walls of the four mounting rod frames (309) are each provided with a pressure spring (304), the top ends of the four pressure springs (304) are respectively fixedly connected to the bottoms of the two mounting plate frames (301), the bottom ends of the four pressure springs (304) are respectively fixedly connected to the outer walls of the four mounting rod frames (309), and the outer walls on both sides of the air outlet frame (4) are both fixedly connected to air frame connecting plates (302), the outer walls on one side of the two air frame connecting plates (302) facing the air outlet frame (4) are both fixedly connected to mounting clamping plates (308), and the two mounting clamping plates (308) are respectively clamped to the four clamping interfaces (306).

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