Drying device for flexible circuit board

Abstract

The utility model discloses a drying device for a flexible circuit board, and relates to the technical field of flexible circuit board production. The drying device comprises a drying box, an air supply fan and a suction fan are erected at the left end and the right end of the upper side wall of the box cover correspondingly and communicate with each other through a flow guide plate, an air outlet of the air supply fan communicates with an air distribution assembly through an electric heating box, a main air pipe of the air distribution assembly communicates with a built-in air pipe, and a flow dividing air pipe is in threaded connection with an injection head. Charging assemblies are erected at the two ends of the drying box, material rods in the charging assemblies are clamped to the clamping plates, feeding assemblies are installed in the front side wall and the rear side wall of the interior of the drying box in an embedded mode, and smooth plates are further arranged on the upper sides and the lower sides of feeding wheels. According to the utility model, the automatic feeding effect can be realized by utilizing the material loading assembly and the material conveying assembly, the dried flexible circuit board can be rolled and recycled, and the heat circulation effect can be realized by utilizing the air supply fan, the air distribution assembly, the flow guide plate and the suction fan.

Description

Technical Field

[0001] The utility model belongs to the technical field of flexible circuit board production, in particular to a drying device for flexible circuit boards. Background Art

[0002] Flexible circuit boards are one of the most common circuit boards. Due to their soft texture, bendability, and extreme thinness, they are widely used in electronic devices with harsh installation environments and strict requirements on the thickness of the molded electronic devices. Flexible circuit boards need to go through multiple processes during the production process, including cleaning and drying.

[0003] A Chinese patent application (or patent) with publication number CN213638415U discloses a flexible circuit board drying device comprising a base, a drying box, and a drying plate. The drying box is located above the base and fixedly connected to it via a support rod. The drying box is a hollow structure with ventilation slots defined in its side. A hot air blower is fixedly connected to the left side of the base, and its output is connected to the ventilation slots via a hose. Multiple air outlet nozzles are symmetrically arranged on the upper and lower sides of the inner wall of the drying box, connecting to the ventilation slots via an air duct. First slots are defined in the drying box on the left and right sides of the air duct, and the air duct engages with the first slots via a latch. Exhaust fans are located on the right side of the drying box, and the air outlets of the exhaust fans are connected to an air filter mechanism via an air duct. This utility model, through the evenly spaced nozzles and drying frame, can dry multiple circuit boards at once.

[0004] The above-mentioned flexible circuit board drying device has a snap-in sliding groove on the inner wall of its drying box, that is, the drying box is snap-in slidingly connected to the drying frame through the snap-in sliding groove. When drying the flexible circuit board, the flexible circuit board needs to be snap-into the drying frame. During the drying process, the drying frame will also be heated, which makes the surface of the drying frame hot and difficult to remove from the frame immediately, which is not conducive to batch drying work. In addition, the right side of the drying box also has an exhaust fan, and the drying box is connected to the polluted gas treatment box through the exhaust fan. The drying gas is treated by the polluted gas treatment box and then directly discharged into the surrounding environment. Therefore, the high-temperature gas is directly discharged into the surrounding environment, which not only increases the temperature of the working area and reduces the comfort of the staff, but also causes the direct discharge of this part of the high-temperature gas to waste thermal resources. To this end, we provide a drying device for flexible circuit boards to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of the utility model is to provide a drying device for flexible circuit boards. By utilizing a loading assembly and a feeding assembly, not only can the automatic loading effect be achieved, but the dried flexible circuit boards can also be rolled up and recovered. By utilizing an air supply fan, an air distribution assembly, a guide plate and a suction fan, a heat circulation effect can be achieved, thereby solving the problems that arise in the above-mentioned flexible circuit board drying device.

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] The utility model is a drying device for flexible circuit boards, comprising a drying box, wherein the top cover of the drying box is provided with a box cover; a supply fan and a suction fan are respectively mounted on the left and right ends of the upper side wall of the box cover, and the supply fan and the suction fan are connected through a guide plate, and a purification plate and a dewatering plate are also provided inside the guide plate, and the air outlet of the supply fan is connected with an air distribution component through an electric heating box, the main air duct of the air distribution component is connected with the built-in air duct, and a diversion air duct is also installed on the built-in air duct, and a nozzle is threadedly connected to the diversion air duct, and a loading component is mounted on the left and right ends of the drying box, the material rod in the loading component is clamped on the clamping plate, and a feeding component is embedded in the front and rear side walls inside the drying box, and smooth plates are also provided on the upper and lower sides of the feeding wheel in the feeding component.

[0008] The utility model is further configured such that a drying trough is provided inside the drying box, a material feed trough is provided in the front and rear side walls of the drying trough corresponding to the horizontal central axis position of the drying trough, a built-in groove is provided in the upper and lower side walls of the material feed trough, and an axial hole is provided in the vertical side wall of the material feed trough.

[0009] The utility model is further configured such that a plurality of the shaft holes are provided, and the plurality of the shaft holes are arranged at equal intervals, the shaft holes are arranged in a one-to-one correspondence with the feeding wheels in the feeding assembly, and the smooth plate in the feeding assembly is embedded in the built-in groove.

[0010] The utility model is further configured such that the feeding wheel includes an insulating wheel, a driving rod and a bearing, the driving rod is installed at the axis of the insulating wheel, and the end of the driving rod is also sleeved with a bearing, and the bearing is embedded in the shaft hole.

[0011] The utility model is further configured such that an electric heating box is sleeved at the air outlet position of the air supply fan, and an electric heating network is arranged inside the electric heating box. The electric heating box is also connected to the main air duct in the air distribution assembly, and the main air duct in the air distribution assembly is inserted into the side wall of the drying box. The built-in air duct and the diversion air duct in the air distribution assembly are arranged inside the drying box.

[0012] The utility model is further configured such that there are two built-in air ducts in total, and the two built-in air ducts are respectively arranged on the upper and lower sides of the feeding assembly, the injection head on the diversion air duct above the feeding assembly is tilted downward, and the injection head on the diversion air duct below the feeding assembly is tilted upward.

[0013] The utility model is further configured such that a suction pipe is installed on the air inlet of the suction fan, and the suction pipe extends into the interior of the drying box through the absorption groove on the cover plate, and the air outlet of the suction fan is connected to the air inlet of the air supply fan through the guide plate.

[0014] The utility model is further configured such that the guide plate is arranged in a hollow structure, and a purification tank is provided on one end of the guide plate close to the suction fan, and a plate cover is provided on the upper cover of the purification tank, the purification plate and the dewatering plate are both arranged inside the purification tank, and the dewatering plate is arranged at one end close to the suction fan.

[0015] The utility model has the following beneficial effects:

[0016] The utility model is provided with an air supply fan, an air distribution component, a guide plate and a suction fan. A high-speed airflow is generated by utilizing the air supply fan, and part of the high-speed airflow is transmitted to the air distribution component through the electric heating box, while some components are mounted inside the drying box and are respectively arranged on the upper and lower sides of the flexible circuit board, so that the upper and lower surfaces of the flexible circuit board can be dried by blowing hot air. At the same time, the hot air retained in the drying box is extracted by the suction fan and is sent to the air supply fan after passing through the dewatering plate and the purification plate in the guide plate, thereby achieving a heat circulation effect.

[0017] The utility model is provided with a drying box, a loading assembly and a feeding assembly. The loading assemblies are mounted on both ends of the drying box. The flexible circuit board barrel can be loaded by utilizing the loading assembly, thereby achieving the effect of drying by delivering it in one pass. At the same time, the dried flexible circuit board can also be rolled up and recycled. The interior of the drying box is also provided with a feeding assembly for rolling the flexible circuit board and gradually feeding it forward, thereby achieving the effect of automatic feeding.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 The figure is a structural schematic diagram of a drying device for flexible circuit boards.

[0021] Figure 2 This is a structural disassembly diagram of a drying device for flexible circuit boards.

[0022] Figure 3 This is a structural diagram of the air supply fan, air distribution assembly, guide plate and suction fan.

[0023] Figure 4 This is a structural disassembly diagram of the guide plate.

[0024] Figure 5 This is the structural disassembly diagram of the drying box, loading assembly and feeding assembly.

[0025] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0026] 1- drying box, 101- drying trough, 102- feeding trough, 102a- built-in trough, 102b- axis hole, 103- feeding port, 104- discharging port, 2- cover plate, 201- absorption trough, 3- air supply fan, 301- electric heating box, 4- air distribution component, 401- main air duct, 402- built-in air duct, 403- diversion air duct, 404- spray head, 5- guide plate, 5 01-purification tank, 502-plate cover, 503-purification plate, 504-water removal plate, 6-suction fan, 601-suction pipe, 7-loading assembly, 701-material rod, 701a-rod sleeve, 702-card plate, 702a-card slot, 8-feeding assembly, 801-feeding wheel, 801a-insulating wheel, 801b-driving rod, 801c-bearing, 802-smooth plate. DETAILED DESCRIPTION

[0027] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 making creative efforts are within the scope of protection of the present invention. Example 1

[0028] See also Figure 1-3 The utility model is a drying device for flexible circuit boards, comprising a drying box 1, an air supply fan 3 is mounted above the drying box 1, and an air distribution component 4 is also installed at the air outlet of the air supply fan 3. By utilizing the air distribution component 4 arranged inside the drying box 1, the flexible circuit boards entering the drying box 1 can be dried by blowing hot air.

[0029] Specifically, the top cover of the drying box 1 is provided with a box cover 2, and an air supply fan 3 is installed on the upper side wall of the left end of the box cover 2, and an electric heating box 301 is also installed on the air outlet of the air supply fan 3, and an air distribution component 4 is installed on the air outlet of the electric heating box 301. The air distribution component 4 passes through the side wall of the drying box 1 and is arranged inside the drying box 1.

[0030] Furthermore, one end of the main air duct 401 in the air distribution assembly 4 is connected to the electric heating box 301, and the other end of the main air duct 401 is connected to the built-in air duct 402. At the same time, a plurality of branch air ducts 403 are threadedly connected at equal intervals on the built-in air duct 402, wherein a plurality of spray heads 404 are installed at equal intervals on the branch air duct 403, wherein the built-in air duct 402, the branch air duct 403 and the spray head 404 are provided in two groups in total, and the two groups are arranged on the upper and lower sides of the central axis surface of the drying box 1.

[0031] The operating process of this embodiment is as follows: when in use, the air supply fan 3 works, which will generate a high-speed airflow and supplement it into the electric heating box 301. The electric heating box 301 is equipped with an electric heating network, which will heat the high-speed airflow entering it. This part of the high-speed airflow with high temperature will follow the main air duct 401 into the built-in air duct 402, and will be dispersed to each nozzle 404 through the diversion pipe 403. The nozzle 404 is sprayed inside the drying box 1 to achieve the effect of blowing hot air to dry the flexible circuit board in the drying box 1. Example 2

[0032] See also Figure 4 On the basis of Example 1, a guide plate 5 is further provided. By utilizing the guide plate 5, the suction fan 6 can be connected to the air supply fan 4, and then the hot air in the drying box 1 is sent back into the air supply fan 3 to achieve the effect of heat circulation.

[0033] Specifically, a suction fan 6 is installed in the upper side wall of the right end of the cover plate 2, and a suction pipe 601 is connected to the air inlet of the suction fan 6, and the other end of the suction pipe 601 extends through the cover plate 2 into the interior of the drying box 1. At the same time, a guide plate 5 is also installed on the air outlet of the suction fan 6, and the suction fan 6 is connected to the air supply fan 3 through the guide plate 5.

[0034] Furthermore, a purification tank 501 is provided at one end of the guide plate 5 near the suction fan 6 , and a plate cover 502 is provided on the top of the purification tank 501 , while a purification plate 503 and a water removal plate 504 are also provided inside the purification tank 501 .

[0035] The operation process of this embodiment is as follows: the suction fan 6 works, and the high-temperature gas with water vapor in the drying box 1 is sucked into it through the suction pipe 601, and input into the interior of the guide plate 5. Then, this part of the high-temperature gas with water vapor contacts the dewatering plate 504 and the purification plate 503 respectively, and is sent into the air supply fan 3, thereby achieving the effect of heat circulation. Example 3

[0036] See also Figure 5 On the basis of Examples 1 and 2, a loading assembly 7 mounted on both sides of the drying box 1 is further provided, and a feeding assembly 8 is also provided inside the drying box 1. By utilizing the loading assembly 7, the flexible circuit board barrel can be loaded to achieve the effect of drying and winding at the same time. By utilizing the feeding assembly 8, the flexible circuit board entering the drying box 1 can be transferred.

[0037] Specifically, a drying trough 101 is provided inside the drying box 1, and a feed port 103 and a discharge port 104 are respectively provided in the middle of the drying trough 101 and on the central axis of the left and right ends of the drying box 1, and a feeding trough 102 is provided on the central axis of the front and rear inner walls of the drying trough 101, and an axial hole 102b is provided in the side wall of the feeding trough 102, and a built-in groove 102a is provided in the upper and lower side walls of the feeding trough 102, and a loading assembly 7 is mounted on the left and right side walls of the drying box 1, wherein both ends of the material rod 701 in the loading assembly 7 are sleeved with a rod sleeve 701a, and the material rod 701 is clamped with the slot 702a in the clamping plate 702 through the rod sleeve 701a, and the smooth plate 802 in the feeding assembly 8 is embedded in the built-in groove 102a, and the feeding wheel 801 is arranged in the feeding trough 102.

[0038] Furthermore, a driving rod 801b is installed at the center of the insulating wheel 801a in the feeding wheel 801, and a bearing 801c is also sleeved on the outer wall of the driving rod 801b, and the driving rod 801b is rotatably connected to the axial hole 102b in the feeding trough 102 through the bearing 801c thereon. There are a plurality of feeding wheels 801 in the feeding assembly 8, and the plurality of feeding wheels 801 are arranged with equal spacing between them.

[0039] The operation process of this embodiment is as follows: when in use, the material rod 701 is inserted into the flexible circuit board material barrel that needs to be dried, and then the material rod 701 is mounted on the clamping plate 702, thereby pulling the flexible circuit board into the feed port 103, and the end of the flexible circuit board is clamped between the feeding wheel 801 and the smooth plate 802, and then, the driving rod 801b works, which will drive the insulating wheel 801a to rotate, and then the insulating wheel 801a rolls the flexible circuit board at its bottom to contact the smooth plate 802, and then it will roll the flexible circuit board gradually into the interior of the drying box 1 until the flexible circuit board at this end passes through the discharge port 104 of the drying box 1, and then the flexible circuit board at this end is wrapped around the material rod 701 at the position of the discharge port 104, and then the material rod 701 on this side is rotated to cooperate with the feeding wheel 801 to automatically pull the flexible circuit board to shuttle through the drying box 1 and dry it.

Claims

1. A drying device for a flexible circuit board, comprising a drying box (1), wherein the top cover of the drying box (1) is provided with a box cover (2); characterized in that: An air supply fan (3) and an exhaust fan (6) are respectively mounted on the left and right ends of the upper side wall of the box cover (2), and the air supply fan (3) and the exhaust fan (6) are connected through a guide plate (5), and a purification plate (503) and a water removal plate (504) are further provided inside the guide plate (5). The air outlet of the air supply fan (3) is connected to the air distribution component (4) through the electric heating box (301), and the main air duct (401) of the air distribution component (4) is connected to the built-in air duct (402), and the built-in air duct A diversion air duct (403) is also installed on (402), and a nozzle (404) is threadedly connected to the diversion air duct (403). A loading assembly (7) is mounted on both the left and right ends of the drying box (1), and the material rod (701) in the loading assembly (7) is clamped on the clamping plate (702). A feeding assembly (8) is embedded in the front and rear side walls inside the drying box (1), and smooth plates (802) are also provided on the upper and lower sides of the feeding wheel (801) in the feeding assembly (8).

2. A drying device for a flexible circuit board according to claim 1, characterized in that: A drying trough (101) is provided inside the drying box (1), a material trough (102) is provided in the front and rear side walls of the drying trough (101) corresponding to the horizontal center axis of the drying trough (101), a built-in groove (102a) is provided in the upper and lower side walls of the material trough (102), and an axis hole (102b) is provided in the vertical side wall of the material trough (102).

3. A drying device for a flexible circuit board according to claim 2, characterized in that: A plurality of the shaft holes (102b) are provided, and the plurality of shaft holes (102b) are arranged at equal intervals. The shaft holes (102b) are arranged in a one-to-one correspondence with the feeding wheels (801) in the feeding assembly (8), and the smooth plate (802) in the feeding assembly (8) is embedded in the built-in groove (102a).

4. A drying device for a flexible circuit board according to claim 3, characterized in that: The feeding wheel (801) comprises an insulating wheel (801a), a driving rod (801b) and a bearing (801c); the driving rod (801b) is mounted at the axis of the insulating wheel (801a); and the end of the driving rod (801b) is also sleeved with a bearing (801c); the bearing (801c) is embedded in the shaft hole (102b).

5. The drying device for a flexible circuit board according to claim 1, characterized in that: The air outlet of the air supply fan (3) is sleeved with an electric heating box (301), and an electric heating network is arranged inside the electric heating box (301). The electric heating box (301) is also connected to the main air duct (401) in the air distribution component (4), and the main air duct (401) in the air distribution component (4) is inserted into the side wall of the drying box (1). The built-in air duct (402) and the diversion air duct (403) in the air distribution component (4) are arranged inside the drying box (1).

6. A drying device for a flexible circuit board according to claim 5, characterized in that: There are two built-in air ducts (402) in total, and the two built-in air ducts (402) are respectively arranged on the upper and lower sides of the material feeding assembly (8), the injection head (404) on the diversion air duct (403) located above the material feeding assembly (8) is arranged tilted downward, and the injection head (404) on the diversion air duct (403) located below the material feeding assembly (8) is arranged tilted upward.

7. The drying device for a flexible circuit board according to claim 1, characterized in that: A suction pipe (601) is installed on the air inlet of the suction fan (6), and the suction pipe (601) extends through the absorption groove (201) on the cover plate (2) and enters the interior of the drying box (1). The air outlet of the suction fan (6) is connected to the air inlet of the air supply fan (3) through the guide plate (5).

8. The drying device for a flexible circuit board according to claim 7, characterized in that: The guide plate (5) is provided with a hollow structure, and a purification tank (501) is provided on one end of the guide plate (5) close to the suction fan (6), and a plate cover (502) is provided on the upper cover of the purification tank (501). The purification plate (503) and the dewatering plate (504) are both provided inside the purification tank (501), and the dewatering plate (504) is provided on one end close to the suction fan (6).

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