A flexible circuit board drying device

Abstract

The present invention discloses a drying device for flexible printed circuit boards, which includes a base, a drying box and a drying plate. The drying box is located above the base and is fixedly connected thereto through a support rod. The drying box is of a hollow structure and has ventilation grooves on its side. A hot air blower fixedly connected to the left side of the base, and the output end of the hot air blower is communicated with the ventilation groove through a hose. A plurality of air outlet nozzles are symmetrically arranged on the upper and lower sides of the inner wall of the drying box, and the air outlet nozzles are communicated with the ventilation groove through air ducts. First clamping grooves are formed on the drying box on the left and right sides of the air duct, and the air duct is clamped in the first clamping grooves through tongues. A row of fans is arranged on the right side of the drying box, and the air outlet of the row of fans is connected with an air filtering mechanism through an air duct. Through the nozzles and drying frames uniformly arranged above and below, the present invention can dry a plurality of circuit boards at one time.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit boards, and particularly to a drying device for flexible circuit boards. Background Art

[0002] The printed circuit board (PCB) is the abbreviation of Printed Circuie Board in English. Usually, the conductive pattern formed by making printed circuits, printed components or a combination of both on an insulating material according to a predetermined design is called a printed circuit. And the conductive pattern that provides electrical connection between components on an insulating substrate is called a printed circuit. In this way, the finished board of the printed circuit or printed circuit is called a printed circuit board, also known as a printed board or printed circuit board. Circuit boards can be classified into the following categories according to their functions: single-sided circuit boards, double-sided circuit boards, multi-layer circuit boards, aluminum-based circuit boards, impedance circuit boards, FPC flexible circuit boards, etc.; after printing, the surface of the circuit board needs to be dried. At present, the circuit board drying devices on the market cannot dry a large number of circuit boards, resulting in wasted time and low efficiency. Summary of the Invention

[0003] The purpose of the present invention is to solve the deficiencies existing in the prior art, and a drying device for flexible circuit boards is proposed.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A drying device for flexible circuit boards, including a base, a drying box and a drying plate, characterized in that the drying box is located above the base and fixedly connected thereto through a support rod, the drying box is of a hollow structure and has ventilation slots on its side, a hot air blower fixedly connected to the left side of the base, the output end of the hot air blower is communicated with the ventilation slots through a hose, a plurality of air outlet nozzles are symmetrically arranged on the upper and lower sides of the inner wall of the drying box, the air outlet nozzles are communicated with the ventilation slots through air ducts, first clamping grooves are provided on the drying box on the left and right sides of the air ducts, the air ducts are clamped in the first clamping grooves through clamping tongues, exhaust fans are arranged on both sides on the right side of the drying box, the air outlets of the exhaust fans are connected with an air filtering mechanism through air ducts, clamping and sliding grooves are provided on the left and right side walls of the base between the air outlet nozzles, protruding eaves matching the shape of the clamping and sliding grooves are fixedly connected to both sides of the drying plate, a plurality of containing grooves are provided on the drying plate, a plurality of through holes are provided on the drying plate below the containing grooves, a drying frame is fixedly connected to the right side of the drying plate, second magnetic connection blocks are fixedly connected to the upper and lower sides of the drying frame, second clamping grooves matching the shape thereof are provided on the drying box, magnetic suction blocks are arranged in the second clamping grooves, and a pull rod is fixedly connected to the side of the drying frame away from the drying plate.

[0006] As a further solution of the present invention: the air outlet nozzle is arranged to be inclined to the right.

[0007] As a further solution of the present invention: a counterweight block is fixedly connected to the lower end of the base.

[0008] As a further solution of the present invention: a circuit board storage cavity is arranged between the connecting frames.

[0009] As a further solution of the present invention: the air filtering mechanism includes a polluted gas treatment box, an arch-shaped block and a transverse clamping plate. The polluted gas treatment box is located at the right end of the drying box and is fixedly connected to the base. The arch-shaped block is arranged in the polluted gas treatment box and is fixedly connected to it. The arch-shaped block is made of granite. The arch-shaped block is trapezoidal from top to bottom and each layer is inclined, so that the condensed water can flow towards the left and right sides. A sub-air guiding groove is opened on each layer of the arch-shaped block and is communicated with the main air guiding groove located in the middle thereof. Sewage collection boxes communicated with it are fixedly connected to the outer walls of the polluted gas treatment box on both sides of the arch-shaped block. The transverse clamping plate is located at the lower end of the arch-shaped block and is fixedly connected to the side wall of the polluted gas treatment box. A pull-out frame is slidably connected in the transverse clamping plate, and an air filter screen is arranged in the pull-out frame.

[0010] As a further solution of the present invention: universal wheels fixedly connected to the base are symmetrically arranged on the left and right at the lower end of the base, and a push rod is fixedly connected to the left end of the base.

[0011] As a further solution of the present invention: a threaded rod threadedly connected to the base is arranged on the lower left side of the base. The threaded rod is inclined, and a clamping block is fixedly connected to the end of the threaded rod close to the universal wheel.

[0012] The beneficial effects of the present invention are as follows:

[0013] By providing the base, the drying box and the drying plate, when drying the circuit board, place it in the storage groove, and then insert the protruding eaves into the drying box through the clamping sliding groove. The magnetic attracting block and the second magnetic connecting block adsorb each other to fix it. Then start the hot air blower so that it evenly sprays out from the upper and lower sides of the drying frame through the ventilation groove and the air duct, evenly taking away the moisture on the surface of the drying plate to make the drying uniform. The air enters the air duct from the exhaust fan, and then is discharged after being processed by the air filtering mechanism. After drying, the drying frame can be taken out by pulling the pull rod. The operation is simple, convenient and fast, and multiple circuit boards can be dried at one time. Description of the Drawings

[0014] Figure 1 It is a schematic diagram of the overall structure of a flexible circuit board drying device;

[0015] Figure 2Schematic diagram of the drying frame structure of a flexible circuit board drying device;

[0016] Figure 3 Partial enlarged structure schematic diagram at position A of a flexible circuit board drying device;

[0017] Figure 4 Schematic diagram of the magnetic suction block structure of a flexible circuit board drying device;

[0018] Figure 5 Partial enlarged structure schematic diagram at position B of a flexible circuit board drying device.

[0019] In the figure: 1 base, 101 counterweight, 102 universal wheel, 103 clamping block, 104 threaded rod, 2 drying box, 201 magnetic suction block, 3 hot air blower, 301 ventilation slot, 302 air duct, 303 tongue, 304 first card slot, 305 air outlet nozzle, 4 exhaust fan, 401 air guide pipe, 5 polluted gas treatment box, 501 arched block, 502 sub-air guide slot, 503 main air guide slot, 504 sewage collection box, 505 horizontal clamping plate, 506 pull-out frame, 507 exhaust hole, 6 push rod, 7 drying frame, 701 second magnetic suction block, 702 pull rod, 703 drying plate, 704 containing groove, 705 through hole, 706 protruding eaves. Detailed implementation manners

[0020] The technical solutions of this patent will be further described in detail below in combination with the specific implementation manners.

[0021] The embodiments of this patent will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are only used to explain this patent and should not be construed as a limitation of this patent.

[0022] In the description of this patent, it should be understood that the orientation or positional relationships indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing this patent and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this patent.

[0023] In the description of this patent, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "linkage", and "setting" should be understood in a broad sense. For example, it can be fixedly connected and set, or detachably connected and set, or integrally connected and set. For those of ordinary skill in the art, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0024] Embodiment 1

[0025] Refer to Figures 1-5, A flexible circuit board drying device, including a base 1, a drying box 2 and a drying plate 703. The drying box 2 is located above the base 1 and is fixedly connected to it through a support rod. The drying box 2 is of a hollow structure and has a ventilation slot 301 on its side. A hot air blower 3 fixedly connected to the left side of the base 1 has an output end communicated with the ventilation slot 301 through a hose. On the upper and lower sides of the inner wall of the drying box 2, a plurality of air outlet nozzles 305 are symmetrically arranged. The air outlet nozzles 305 are communicated with the ventilation slot 301 through air ducts 302. On the drying box 2 on the left and right sides of the air duct 302, first clamping grooves 304 are opened. The air duct 302 is clamped in the first clamping grooves 304 through clamping tongues 303. On the right side of the drying box 2, a double-sided exhaust fan 4 is arranged. The air outlet of the exhaust fan 4 is connected with an air filtering mechanism through an air duct 401. On the left and right side walls of the base 1 between the air outlet nozzles 305, clamping and sliding grooves are opened. On both sides of the drying plate 703, protruding eaves 706 are fixedly connected, which are in a shape matching the clamping and sliding grooves, so that the drying frame 7 is slidably connected to the drying box 2. On the drying plate 703, a plurality of holding grooves 704 are opened, so that the circuit board can be placed therein and play a role in positioning it. On the drying plate 703 at the lower end of the holding groove 704, a plurality of through holes 705 are opened, so as to dehumidify the lower surface of the circuit board. On the right side of the drying plate 703, a drying frame 7 is fixedly connected. On the upper and lower sides of the drying frame 7, second magnetic connection blocks 701 are fixedly connected. On the drying box 2, a second clamping groove with a shape matching it is opened. Magnetic suction blocks 201 are arranged in the second clamping groove, so that when the drying plate 703 is inserted, the second magnetic connection blocks 701 and the magnetic suction blocks 201 can adsorb each other, and the drying frame 7 is fixed. On the side of the drying frame 7 away from the drying plate 703, a pull rod 702 is fixedly connected; Working principle: When drying the circuit board, place it in the holding groove 704, then insert the protruding eaves 706 into the drying box 2 through the clamping and sliding grooves. The magnetic suction blocks 201 and the second magnetic connection blocks 701 adsorb each other to fix it. Then start the hot air blower 3 to make it evenly spray from the upper and lower sides of the drying frame 7 through the ventilation slot 301 and the air ducts 302, and evenly take away the moisture on the surface of the drying plate 703 to make the drying uniform. The air enters the air duct 401 from the exhaust fan 4 and is then discharged after being processed by the air filtering mechanism. After drying, the drying frame 7 can be taken out by pulling the pull rod 702. The operation is simple, convenient and fast, and multiple circuit boards can be dried at one time.

[0026] Further, the air outlet nozzle 305 is inclined to the right, so as to enable the air to flow to the right.

[0027] Furthermore, a counterweight block 101 is fixedly connected to the lower end of the base 1, so as to lower the center of gravity of the device and make it more stable.

[0028] Preferably, a circuit board storage cavity is provided between the connecting frames, so as to facilitate placing the dried circuit boards therein.

[0029] Embodiment 2

[0030] A flexible circuit board drying device. In this embodiment, the air filtering mechanism mentioned in Embodiment 1 is described in detail. The air filtering mechanism includes a polluted gas treatment box 5, an arch-shaped block 501, and a transverse clamping plate 505. The polluted gas treatment box 5 is located at the right end of the drying box 2 and is fixedly connected to the base 1. The arch-shaped block 501 is arranged in the polluted gas treatment box 5 and is fixedly connected thereto. The arch-shaped block 501 is made of granite, and its surface temperature is relatively low, so that the hot air condenses after contacting it. The arch-shaped block 501 is trapezoidal from top to bottom and each layer is inclined, so that the condensed water can flow towards the left and right sides. Each layer of the arch-shaped block 501 is provided with a sub-air guiding groove 502 communicating with the main air guiding groove 503 located in the middle thereof, so that air enters the main air guiding groove 503 from the main air guiding groove 503, and the condensed water flows to both sides. The outer walls of the polluted gas treatment box 5 on both sides of the arch-shaped block 501 are fixedly connected with sewage collection boxes 504 communicating therewith. The transverse clamping plate 505 is located at the lower end of the arch-shaped block 501 and is fixedly connected to the side wall of the polluted gas treatment box 5. A pull-out frame 506 is slidably connected in the transverse clamping plate 505, and an air filter screen is arranged in the pull-out frame 506. Working principle: After the hot air enters the polluted gas treatment box 5, it condenses into water on the surface of the arch-shaped block 501, and then moves to both sides. The air will enter the main air guiding groove 503 through the sub-air guiding groove 502, and the condensed water will enter the sewage collection box 504 for centralized treatment. The air is discharged from the exhaust hole 507 after being filtered by the filter screen.

[0031] In order to facilitate the movement of this device, universal wheels 102 fixedly connected to the base 1 are symmetrically arranged at the lower end of the base 1 on the left and right. A push rod 6 is fixedly connected to the left end of the base 1 to facilitate pushing this device.

[0032] Furthermore, a threaded rod 104 threadedly connected to the base 1 is arranged at the lower left side of the base 1. The threaded rod 104 is inclined. A clamping block 103 is fixedly connected to the end of the threaded rod 104 close to the universal wheel 102, so that the device can be fixed by rotating the threaded rod 104 to make the clamping block 103 clamp.

[0033] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. A flexible circuit board drying device, comprising a base (1), a drying box (2) and a drying plate (703), characterized in that, the drying box (2) is located above the base (1) and is fixedly connected thereto by a support rod. The drying box (2) is of a hollow structure and has ventilation grooves (301) on its side. A hot air blower (3) is fixedly connected to the left side of the base (1). The output end of the hot air blower (3) is communicated with the ventilation groove (301) through a hose. A plurality of air outlet nozzles (305) are symmetrically arranged on the upper and lower sides of the inner wall of the drying box (2). The air outlet nozzles (305) are communicated with the ventilation groove (301) through air ducts (302). First clamping grooves (304) are formed on the drying box (2) on the left and right sides of the air duct (302). The air duct (302) is clamped in the first clamping groove (304) through a clamping tongue (303). A side exhaust fan (4) is arranged on the right side of the drying box (2). The air outlet of the exhaust fan (4) is connected with an air filtering mechanism through an air duct (401). Clamping sliding grooves are formed on the left and right side walls of the drying box (2) between the air outlet nozzles (305). The two sides of the drying plate (703) are fixedly connected with protruding eaves (706) that match the shape of the clamping sliding grooves. A plurality of holding grooves (704) are formed on the drying plate (703) for holding flexible circuit boards. A plurality of through holes (705) are formed on the drying plate (703) at the lower end of the holding groove (704). One side of the drying plate (703) is fixedly connected with a drying frame (7). Second magnetic connection blocks (701) are fixedly connected to the upper and lower sides of the drying frame (7). Second clamping grooves that match the shape of the second magnetic connection blocks (701) are provided on the drying box (2). Magnetic attracting blocks (201) are arranged in the second clamping grooves. A pull rod (702) is fixedly connected to the side of the drying frame (7) away from the drying plate (703); the air outlet nozzles (305) are arranged to incline to the right; a counterweight block (101) is fixedly connected to the lower end of the base (1).

2. A flexible circuit board drying device according to claim 1, characterized in that, The air filtering mechanism includes a polluted gas treatment box (5), an arched block (501) and a transverse clamping plate (505). The polluted gas treatment box (5) is located at the right end of the drying box (2) and is fixedly connected to the base (1). The arched block (501) is arranged in the polluted gas treatment box (5) and is fixedly connected thereto. The arched block (501) is made of granite. The arched block (501) is trapezoidal in structure from top to bottom and each layer is inclined, so that the condensed water can flow towards the left and right sides. Each layer of the arched block (501) is provided with a sub-air guiding groove (502) communicating with the main air guiding groove (503) located in the middle thereof. Sewage collection boxes (504) communicating with the polluted gas treatment box (5) are fixedly connected to the outer walls of the polluted gas treatment box (5) on both sides of the arched block (501). The transverse clamping plate (505) is located at the lower end of the arched block (501) and is fixedly connected to the side wall of the polluted gas treatment box (5). A pull-out frame (506) is slidably connected in the transverse clamping plate (505), and an air filter screen is arranged in the pull-out frame (506).

3. A flexible circuit board drying device according to claim 2, characterized in that, universal wheels (102) fixedly connected to the base (1) are symmetrically arranged on the left and right at the lower end of the base (1), and a push rod (6) is fixedly connected to the left end of the base (1).

4. A flexible circuit board drying device according to claim 3, characterized in that, a threaded rod (104) threadedly connected to the base (1) is arranged at the lower left side of the base (1). The threaded rod (104) is inclined, and a clamping block (103) is fixedly connected to one end of the threaded rod (104) close to the universal wheel (102).

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