Drying equipment for flexible circuit board production

Abstract

The utility model provides drying equipment for flexible circuit board production, which relates to the technical field of circuit board production and comprises a barrel body, a drying cylinder and a pushing assembly are arranged in the barrel body, a clamping assembly is arranged on the side face of the drying cylinder, and the clamping assembly moves in the barrel body through the pushing assembly. According to the drying equipment for flexible circuit board production, through the drying cylinder and the clamping assembly fixed to the side face of the drying cylinder, flexible circuit boards can be independently clamped, it can be ensured that each flexible circuit board obtains equal hot air or heat sources, and therefore the more uniform drying effect is achieved; the condition of local overheating or non-drying caused by stacking is reduced, and the drying quality is improved; meanwhile, all the flexible circuit boards are not stacked, collision and friction are avoided, the risks of scraping damage and physical damage are reduced, the integrity and performance of the flexible circuit boards are protected, and the product quality is improved.

Description

Technical Field

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

[0002] Flexible printed circuits, also known as "flexible boards," are printed circuits made from a flexible insulating substrate. They offer excellent electrical performance, meeting the demands of smaller and higher-density designs, while also reducing assembly steps and enhancing reliability. Flexible circuits are the only solution to meeting the miniaturization and mobility requirements of electronic products. They can be bent, rolled, and folded freely, withstanding millions of dynamic bends without damaging the conductors. They can be arranged arbitrarily to meet spatial layout requirements and move and expand freely in three dimensions, integrating component assembly and wiring connections. Flexible circuits can significantly reduce the size and weight of electronic products, meeting the trend toward high-density, miniaturization, and high reliability. Flexible printed circuit boards are available in single-sided, double-sided, and multi-layer versions. The primary substrate used is polyimide copper-clad laminate (CCL). This material offers high heat resistance and excellent dimensional stability. The final product is formed by laminating it with a cover film that provides both mechanical protection and excellent electrical insulation. Metallization is used on the surface and inner conductors of double-sided and multi-layer printed circuit boards to achieve electrical connections between the inner and outer layers.

[0003] Most flexible circuit board drying devices in the prior art stack multiple flexible circuit boards for drying, which makes it impossible to dry the flexible circuit boards uniformly. This not only reduces the drying speed, but also causes the flexible circuit boards to collide with each other during the stacking and drying process, causing scratches on the surface of the flexible circuit boards. In addition, after the drying device completes drying the flexible circuit boards, it is unable to quickly dissipate heat, resulting in residual heat inside the drying device, which over-dries the flexible circuit boards and causes damage to the flexible circuit boards. Moreover, since the circuit boards themselves do not have heat dissipation properties, there is a risk of burns when workers remove the circuit boards, posing a great safety hazard.

[0004] Therefore, a drying device for producing flexible circuit boards is proposed. Utility Model Content

[0005] The utility model proposes a drying device for the production of flexible circuit boards to solve the problem in the prior art that flexible circuit boards may collide with each other during the stacking and drying process, causing scratches on the surface of the flexible circuit boards, and the drying device cannot quickly dissipate heat after drying the flexible circuit boards, which may cause the risk of burns to workers when removing the circuit boards.

[0006] The utility model is realized by the following technical solutions: a drying device for flexible circuit board production, comprising a barrel, a drying cylinder and a pushing assembly are arranged inside the barrel, a clamping assembly is arranged on the side of the drying cylinder, and the clamping assembly moves inside the barrel through the pushing assembly;

[0007] The clamping assembly includes a fixed plate, a first telescopic rod, a movable plate and a limiting unit. The fixed plate is fixed to the side of the drying drum, one end of the first telescopic rod is fixed to the side of the fixed plate, and the movable plate is fixed to the other end of the first telescopic rod. A first spring is sleeved on the surface of the first telescopic rod. There are two limiting units, which are respectively arranged at the top and bottom of the movable plate.

[0008] An air inlet pipe is provided on the top of the barrel body, and one end of the air inlet pipe is provided inside the drying cylinder.

[0009] Furthermore, a first transmission compartment and a drying compartment are provided inside the barrel body, a second motor is fixed to the inner wall of the first transmission compartment, the output end of the second motor is passed through the drying compartment through a bearing, the lower surface of the drying cylinder is fixed to the output shaft of the second motor, and air holes are provided on the surface of the drying cylinder. There are multiple air holes, which are evenly arranged in a ring shape on the surface of the drying cylinder. An air inlet is provided on the upper surface of the drying cylinder, and the air inlet pipe is passed through the air inlet.

[0010] Furthermore, a support block is fixed to the lower surface of the drying cylinder, a support groove corresponding to the support block is provided on the surface of the drying chamber, and the support block moves in the support groove; a second slider is fixed to the upper surface of the drying cylinder, a second slide groove corresponding to the second slider is provided on the surface of the drying chamber, and the second slider moves in the second slide groove; the drying cylinder is rotatably connected to the drying chamber through a second motor, a support block and a second slider.

[0011] Furthermore, the limiting unit includes a pull rod, a limiting plate and a second telescopic rod, the pull rod is passed through the surface of the movable plate, the limiting plate is fixed to one end of the pull rod, one end of the second telescopic rod is fixed to the side of the limiting plate, the other end of the second telescopic rod is fixed to the side of the movable plate, and a second spring is sleeved on the surface of the second telescopic rod.

[0012] Furthermore, a first slider is fixed on the lower surface of the movable plate, a first slide groove is opened on the surface of the fixed plate, the first slider is movably connected in the first slide groove, the movable plate moves on the surface of the fixed plate through the first slider and the first slide groove, and a pushing block is also fixed on the upper surface of the fixed plate.

[0013] Furthermore, the pushing assembly includes a first motor, a threaded rod, a threaded cap and a moving rod. A second transmission compartment is provided inside the barrel body. The first motor is fixed to the inner wall of the second transmission compartment. The threaded rod is fixed to the output end of the first motor. The threaded cap is threadedly connected to the surface of the threaded rod. The moving rod is fixed to the side of the threaded cap. A movable groove is provided on the surface of the second transmission compartment, and the moving rod is inserted into the movable groove.

[0014] Furthermore, there are multiple clamping components, which are evenly arranged in a ring shape on the side of the drying cylinder. A movable groove is provided on the side of the barrel body. The movable plate moves in the movable groove through the pushing component and the pushing block. The two ends of the air inlet pipe are respectively connected to the external hot air pipe and cold air pipe, and an observation window is provided on the surface of the barrel body.

[0015] The utility model provides a drying device for the production of flexible circuit boards, which has the following beneficial effects:

[0016] 1. The drying equipment for flexible circuit board production can independently clamp the flexible circuit boards through the drying drum and the clamping assembly fixed to the side of the drying drum, ensuring that each flexible circuit board obtains equal hot air or heat source, thereby achieving a more uniform drying effect, reducing local overheating or non-drying caused by stacking, and improving the drying quality; at the same time, the flexible circuit boards will not stack on each other, avoiding collision and friction, reducing the risk of scratches and physical damage, thereby protecting the integrity and performance of the flexible circuit boards and improving product quality.

[0017] 2. The drying equipment for flexible circuit board production can push the mobile board with the flexible circuit board fixed on it out of the barrel by pushing the assembly, thereby avoiding direct contact of the staff with the high temperature environment, reducing the safety hazards caused by high temperature, and ensuring the safety of the staff. The pushing assembly makes the removal and placement of the flexible circuit board smoother, thereby improving production efficiency. At the same time, the dried circuit board is pushed out in time, thereby avoiding staying in the high temperature for too long and preventing the flexible circuit board from being over-dried.

[0018] 3. The drying equipment for flexible circuit board production is connected to the air inlet pipe and the drying drum, wherein the two ends of the air inlet pipe are respectively connected to the hot air pipe and the cold air pipe. Hot air or cold air can be selected to enter the drying drum according to the drying process, thereby realizing the heating and cooling of the drying chamber. At the same time, the second motor can drive the drying drum to rotate, which can promote the circulation of hot air, so that the hot air is more evenly distributed around each circuit board, thereby improving the drying efficiency, avoiding the situation where the local temperature is too high or too low, and ensuring that each circuit board can obtain comprehensive heat. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 This is a front cross-sectional structural diagram of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of the connection between the clamping assembly and the drying drum in the present invention;

[0022] Figure 4 It is a structural schematic diagram of the clamping assembly in the utility model.

[0023] Description of Reference Numerals

[0024] 1. Barrel; 101. First transmission chamber; 102. Drying chamber; 103. Moving trough; 104. Second transmission chamber; 105. Observation window;

[0025] 2. Clamping assembly; 201. Fixed plate; 202. First telescopic rod; 203. Moving plate; 204. Limiting unit; 2041. Pull rod; 2042. Limiting plate; 2043. Second telescopic rod; 205. First slider; 206. First chute; 207. Pushing block;

[0026] 3. Pushing assembly; 301. First motor; 302. Threaded rod; 303. Threaded cap; 304. Moving rod;

[0027] 4. Drying drum; 401. Ventilation hole; 402. Air inlet hole; 403. Second slider; 404. Support block;

[0028] 5. Intake pipe; 6. Second motor. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0030] See also Figures 1 to 4, the embodiment of the utility model provides a drying device for the production of flexible circuit boards, including a barrel body 1, a drying cylinder 4 and a pushing component 3 are arranged inside the barrel body 1, a clamping component 2 is arranged on the side of the drying cylinder 4, and the clamping component 2 is movable inside the barrel body through the pushing component 3; an air intake pipe 5 is passed through the top of the barrel body 1, and one end of the air intake pipe 5 is passed through the inside of the drying cylinder 4; a first transmission compartment 101 and a drying compartment 102 are opened inside the barrel body 1, a second motor 6 is fixed to the inner wall of the first transmission compartment 101, and the output end of the second motor 6 is passed through the drying compartment 102 through a bearing, and the lower surface of the drying cylinder 4 is fixed to the output shaft of the second motor 6, and an air vent 401 is opened on the surface of the drying cylinder 4, and there are multiple air vents 401, and They are evenly arranged in a ring shape on the surface of the drying drum 4, and an air inlet hole 402 is opened on the upper surface of the drying drum 4, and the air inlet pipe 5 is passed through the air inlet hole 402; the drying equipment for the production of flexible circuit boards is through the air inlet pipe 5 and the drying drum 4, wherein the two ends of the air inlet pipe 5 are respectively connected to the hot air pipe and the cold air pipe, and hot air or cold air can be selected to pass into the drying drum 4 according to the drying process, thereby realizing heating and cooling of the drying chamber 102, and at the same time, the second motor 6 can drive the drying drum 4 to rotate, which can promote the circulation of hot air, so that the hot air is more evenly distributed around each circuit board, thereby improving the drying efficiency, avoiding the situation where the local temperature is too high or too low, and ensuring that each circuit board can obtain comprehensive heat.

[0031] Please refer to Figure 1 、 Figure 2 and Figure 3The first extension rod 202 is provided with a first spring which is sleeved on the surface of the first extension rod 202, and the second extension rod 203 is provided with a first spring which is sleeved on the surface of the first extension rod 202. The second extension rod 203 is provided with a first spring which is sleeved on the surface of the first extension rod 202. The second extension rod 203 is sleeved on the surface of the first extension rod 202, and the second extension rod 203 is sleeved on the surface of the first extension rod 202. The second extension rod 203 is sleeved on the surface of the first extension rod 202, and the second extension rod 203 is sleeved on the surface of the first extension rod 202. The rod 2041, the limiting plate 2042 and the second telescopic rod 2043, the pull rod 2041 is passed through the surface of the movable plate 203, the limiting plate 2042 is fixed to one end of the pull rod 2041, one end of the second telescopic rod 2043 is fixed to the side of the limiting plate 2042, and the other end of the second telescopic rod 2043 is fixed to the side of the movable plate 203, and the surface of the second telescopic rod 2043 is sleeved with a second spring; the drying equipment for flexible circuit board production can independently clamp the flexible circuit boards through the drying cylinder 4 and the clamping assembly 2 fixed on the side of the drying cylinder 4, so as to ensure that each flexible circuit board obtains equal hot air or heat source, thereby achieving a more uniform drying effect, reducing local overheating or non-drying caused by stacking, and improving the drying quality; at the same time, the flexible circuit boards will not stack on each other, avoiding collision and friction, reducing the risk of scratching and physical damage, thereby protecting the integrity and performance of the flexible circuit boards and improving product quality.

[0032] A first slider 205 is fixed on the lower surface of the movable plate 203, and a first slide groove 206 is opened on the surface of the fixed plate 201. The first slider 205 is movably connected in the first slide groove 206. The movable plate 203 moves on the surface of the fixed plate 201 through the first slider 205 and the first slide groove 206. A pushing block 207 is also fixed on the upper surface of the fixed plate 201.

[0033] Please refer to Figure 2The pushing component 3 includes a first motor 301, a threaded rod 302, a threaded cap 303 and a moving rod 304. A second transmission compartment 104 is provided inside the barrel body 1. The first motor 301 is fixed to the inner wall of the second transmission compartment 104, the threaded rod 302 is fixed to the output end of the first motor 301, the threaded cap 303 is threadedly connected to the surface of the threaded rod 302, the moving rod 304 is fixed to the side of the threaded cap 303, and a movable groove is provided on the surface of the second transmission compartment 104, and the moving rod 304 is inserted into the movable groove; the drying equipment for flexible circuit board production can push the movable plate 203 with the flexible circuit board fixed thereon out of the barrel body 1 through the pushing component 3, thereby avoiding direct contact of the staff with the high temperature environment, reducing the safety hazards caused by the high temperature, and ensuring the safety of the staff. In addition, the pushing component 3 makes the removal and placement of the flexible circuit board smoother, thereby improving the production efficiency. At the same time, the dried circuit board is pushed out in time, thereby avoiding staying in the high temperature for too long and avoiding the flexible circuit board from being over-dried.

[0034] Please refer to Figure 1 、 Figure 3 and Figure 4 There are multiple clamping components 2, which are evenly arranged in a ring shape on the side of the drying cylinder 4. A movable groove 103 is opened on the side of the barrel body 1. The movable plate 203 moves in the movable groove 103 through the pushing component 3 and the pushing block 207. The two ends of the air inlet pipe 5 are respectively connected to the external hot air pipe and the cold air pipe. An observation window 105 is opened on the surface of the barrel body 1.

[0035] When using the present invention: first, the device is placed in a suitable position and connected to an external control device and 220V mains electricity. The control device can be a conventional known device such as a computer. Then, the staff controls the first motor 301 through the control device. The first motor 301 drives the threaded rod 302 to rotate. The threaded rod 302 drives the threaded cap 303 and the moving rod 304 fixed on the lower surface of the threaded cap 303 to move. During the movement of the moving rod 304, the pushing block 207 can be pushed to move, thereby pushing the moving plate 203 to move, and then the moving plate 203 is pushed out of the barrel. Body 1, then the staff pulls the pull rod 2041 to clamp one end of the flexible circuit board in the middle of the movable plate 203, and then releases the pull rod 2041. With the cooperation of the second telescopic rod 2043 and the second spring, the flexible circuit board is fixed. Then the staff controls the first motor 301 to operate in the reverse direction through the control device, so that the movable rod returns to its original position. With the cooperation of the first telescopic rod 202 and the first spring, the movable plate 203 with the flexible circuit board fixed thereon is pulled back to the drying chamber 102. Finally, the staff controls the second motor 6 to operate through the control device to drive the drying drum 4 to rotate, and repeats the above steps.

[0036] Finally, the staff introduces hot air into the drying drum 4 through the air inlet pipe, and controls the operation of the second motor 6 through the control device to drive the drying drum 4 to rotate, thereby drying the flexible circuit boards inside the drying bin 102. After the drying is completed, the staff introduces cold air into the drying drum 4 through the air inlet pipe to cool down the drying bin 102, and then takes out the flexible circuit boards.

[0037] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A drying device for producing flexible circuit boards, comprising a barrel (1), characterized in that: A drying cylinder (4) and a pushing assembly (3) are provided inside the barrel body (1); a clamping assembly (2) is provided on the side of the drying cylinder (4); and the clamping assembly (2) moves inside the barrel body through the pushing assembly (3); The clamping assembly (2) comprises a fixed plate (201), a first telescopic rod (202), a movable plate (203) and a limiting unit (204); the fixed plate (201) is fixed to the side of the drying drum (4); one end of the first telescopic rod (202) is fixed to the side of the fixed plate (201); the movable plate (203) is fixed to the other end of the first telescopic rod (202); a first spring is sleeved on the surface of the first telescopic rod (202); and there are two limiting units (204), which are respectively arranged at the top and bottom of the movable plate (203); An air inlet pipe (5) is provided through the top of the barrel body (1), and one end of the air inlet pipe (5) is provided inside the drying cylinder (4).

2. The drying equipment for flexible circuit board production according to claim 1, characterized in that: A first transmission chamber (101) and a drying chamber (102) are provided inside the barrel body (1); a second motor (6) is fixed to the inner wall of the first transmission chamber (101); the output end of the second motor (6) is passed through the drying chamber (102) via a bearing; the lower surface of the drying cylinder (4) is fixed to the output shaft of the second motor (6); a ventilation hole (401) is provided on the surface of the drying cylinder (4); a plurality of ventilation holes (401) are uniformly arranged in an annular shape on the surface of the drying cylinder (4); an air inlet hole (402) is provided on the upper surface of the drying cylinder (4); and the air inlet pipe (5) is passed through the air inlet hole (402).

3. The drying equipment for producing flexible circuit boards according to claim 2, characterized in that: A support block (404) is fixed on the lower surface of the drying cylinder (4), a support groove corresponding to the support block (404) is provided on the surface of the drying chamber (102), and the support block (404) moves in the support groove; a second slider (403) is fixed on the upper surface of the drying cylinder (4), a second slide groove corresponding to the second slider (403) is provided on the surface of the drying chamber (102), and the second slider (403) moves in the second slide groove; the drying cylinder (4) is rotatably connected to the drying chamber (102) through the second motor (6), the support block (404) and the second slider (403).

4. The drying equipment for producing flexible circuit boards according to claim 1, characterized in that: The limiting unit (204) includes a pull rod (2041), a limiting plate (2042) and a second telescopic rod (2043), wherein the pull rod (2041) is passed through the surface of the movable plate (203), the limiting plate (2042) is fixed to one end of the pull rod (2041), one end of the second telescopic rod (2043) is fixed to the side of the limiting plate (2042), and the other end of the second telescopic rod (2043) is fixed to the side of the movable plate (203), and a second spring is sleeved on the surface of the second telescopic rod (2043).

5. The drying equipment for flexible circuit board production according to claim 1, characterized in that: A first slider (205) is fixed on the lower surface of the movable plate (203), a first slide groove (206) is provided on the surface of the fixed plate (201), the first slider (205) is movably connected in the first slide groove (206), the movable plate (203) is movable on the surface of the fixed plate (201) through the first slider (205) and the first slide groove (206), and a pushing block (207) is also fixed on the upper surface of the fixed plate (201).

6. The drying equipment for producing flexible circuit boards according to claim 1, characterized in that: The pushing assembly (3) comprises a first motor (301), a threaded rod (302), a threaded cap (303) and a moving rod (304); a second transmission chamber (104) is provided inside the barrel body (1); the first motor (301) is fixed to the inner wall of the second transmission chamber (104); the threaded rod (302) is fixed to the output end of the first motor (301); the threaded cap (303) is threadedly connected to the surface of the threaded rod (302); the moving rod (304) is fixed to the side of the threaded cap (303); a movable groove is provided on the surface of the second transmission chamber (104); the moving rod (304) is inserted into the movable groove.

7. The drying equipment for producing flexible circuit boards according to claim 5, characterized in that: There are multiple clamping assemblies (2), which are evenly arranged in a ring shape on the side of the drying cylinder (4). A movable groove (103) is provided on the side of the barrel body (1). The movable plate (203) moves in the movable groove (103) through the pushing assembly (3) and the pushing block (207). The two ends of the air inlet pipe (5) are respectively connected to the external hot air pipe and the cold air pipe. An observation window (105) is provided on the surface of the barrel body (1).

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