Circuit board baking and drying machine

Abstract

The utility model discloses a circuit board baking and drying machine which comprises a drying machine shell, a board placing opening is formed in the upper end face of the drying machine shell, a board turning device is arranged at the top in the drying machine shell and used for evenly heating a circuit board, and an air heater is arranged on one side of the board turning device. A garbage drawer is arranged on the inner bottom wall of the drying machine shell and used for collecting impurity particles shaken off from the dried circuit board. According to the circuit board drying device, the driving motor, the rotating rod, the board drying frame and the ventilation holes are matched, so that the circuit board can be uniformly heated in the process of drying the circuit board by the air heater, the situation that the lower surface of the circuit board is difficult to dry when the circuit board is flatly laid on the board drying frame is avoided, the circuit board is uniformly dried, and the drying effect of the circuit board is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board production, in particular to a circuit board baking and drying machine. Background Art

[0002] The circuit board manufacturing process has many steps, and each step may directly or indirectly affect the quality of the circuit board production. There is a step in the circuit board production process that requires drying. The existing technology is to place the circuit board directly on the conveyor belt for drying, which can save time. However, this method of drying the circuit board can only dry one side of the circuit board. The other side may be difficult to dry because the circuit board is close to the conveyor belt, which may affect the quality of the circuit board production.

[0003] Based on this, in order to enable both sides of the circuit board to be dried and dried, a drying machine for circuit board production is now provided. Utility Model Content

[0004] The utility model aims to provide a circuit board baking and drying machine to solve the problem that both sides of the circuit board cannot be dried at the same time.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A circuit board baking dryer comprises a dryer shell, wherein the upper end surface of the dryer shell is provided with a board placing opening, a flap device is provided at the top of the dryer shell for uniformly heating the circuit board, a hot air blower is provided at one side of the flap device, and a garbage drawer is provided on the bottom wall of the dryer shell for collecting impurities and debris shaken off by the circuit board after drying.

[0007] Furthermore, the flap device includes a drying plate frame, ventilation holes, a rotating rod and a driving motor. A rotating rod is laterally arranged on the inner side of the dryer shell, one end of the rotating rod is rotatably connected to the inner wall of the dryer shell, the other end of the rotating rod passes through the side wall of the dryer shell and the end is connected to the driving motor, a drying plate frame is fixedly sleeved on the outer wall of the rotating rod, and a plurality of ventilation holes are opened on the side wall of the drying plate frame close to the hot air blower.

[0008] Furthermore, a plurality of protrusions are arranged on the inner bottom wall of the baking plate frame to increase the heating area of ​​the circuit board.

[0009] Furthermore, the outer wall of the end of the rotating rod close to the driving motor is rotatably connected to the side wall of the dryer shell, and the rotating rod is fixedly connected to the output shaft of the driving motor.

[0010] Furthermore, a screen is provided at the bottom of the dryer housing to filter out large particles of impurities mixed in the circuit board.

[0011] Furthermore, vibrators are fixedly mounted on the inner walls of the dryer housing on both sides opposite to each other, and the top end of the vibrator is in contact with the bottom end surface of the screen.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] In the utility model, the cooperation among the driving motor, the rotating rod, the drying plate frame and the ventilation holes enables the hot air blower to dry the circuit board evenly during the drying process. The protrusions arranged at the bottom of the drying plate frame can provide certain support for the circuit board, so that there is a certain gap under the circuit board, ensuring that the lower surface of the circuit board can also be heated and dried.

[0014] At the same time, the rotating design of the drying plate frame can make the circuit board dry and heat evenly, avoid the deformation of the circuit board during drying, and improve the quality and efficiency of circuit board manufacturing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the front view and cross-section structure of a circuit board baking and drying machine;

[0016] Figure 2 for Figure 1 A partial enlarged view of the middle part;

[0017] Figure 3 The present invention is a schematic diagram of the front view structure of a circuit board baking and drying machine.

[0018] In the figure: 10, dryer casing; 11, plate opening; 12, hot air blower; 13, garbage drawer; 14, screen; 15, vibrator; 20, drying plate frame; 21, ventilation hole; 22, rotating rod; 23, driving motor; 24, bump. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-3 , the utility model provides a technical solution:

[0021] In this solution, in order to make the circuit boards dry evenly, a board placement opening 11 is provided on the upper end surface of the dryer housing 10, a flap device is provided on the top of the dryer housing 10 for evenly heating the circuit boards, a hot air blower 12 is provided on one side of the flap device, and a garbage drawer 13 is provided on the bottom wall of the dryer housing 10 for collecting impurities and debris shaken off from the circuit boards after drying.

[0022] In addition, the flipping device includes a drying plate frame 20, ventilation holes 21, a rotating rod 22 and a driving motor 23. A rotating rod 22 is laterally arranged on the inner side of the dryer shell 10, one end of the rotating rod 22 is rotatably connected to the inner wall of the dryer shell 10, the other end of the rotating rod 22 passes through the side wall of the dryer shell 10 and the end is connected to the driving motor 23, the drying plate frame 20 is fixedly sleeved on the outer wall of the rotating rod 22, and a plurality of ventilation holes 21 are opened on the side wall of the drying plate frame 20 close to the hot air blower 12, wherein a screen 14 is arranged at the bottom of the dryer shell 10 for removing particulate impurities generated on the surface of the circuit board after drying.

[0023] When in use, the circuit board is placed through the board placement opening 11, and the circuit board is manually placed flat in the drying plate frame 20. By starting the driving motor 23, the rotating rod 22 is rotated, so that the drying plate frame 20 rotates slightly, so that the circuit board in the drying plate frame 20 is evenly heated, and the hot air blower 12 arranged on one side makes the main body of the drying plate frame 20 always have a high temperature (the drying plate frame 20 is made of aluminum alloy material with high thermal conductivity), and the hot air can enter the drying plate frame 20 through the arranged ventilation holes 21 The circuit board is directly dried. After the drying is completed, the driving motor 23 drives the drying plate frame 20 to rotate greatly, so that the opening of the drying plate frame 20 is vertically downward, and generally, the opening of the drying plate frame 20 is vertically upward, and then the circuit board is poured out through the opening of the drying plate frame 20, and then the circuit board falls on the screen 14, and the particle impurities on the surface of the circuit board are removed by the set screen 14, and then the circuit board is taken out from the screen 14 after the screening is completed, and the impurity particles falling into the garbage drawer 13 will be collected and processed centrally, and if Figure 3 As shown, a door is hingedly connected to one side of the dryer housing 10 to facilitate the removal and placement of the garbage drawer 13.

[0024] In addition, a plurality of protrusions 24 are provided on the inner bottom wall of the baking plate frame 20 to increase the heating area of ​​the lower surface of the circuit board.

[0025] The outer wall of the end of the rotating rod 22 close to the driving motor 23 is rotatably connected to the side wall of the dryer housing 10, and the rotating rod 22 is fixed to the output shaft of the driving motor 23 by welding.

[0026] In order to speed up the screening of circuit boards, vibrators 15 are fixedly installed on the inner walls of the opposite sides of the dryer housing 10 by bolts. The top of the vibrator 15 contacts the bottom end surface of the screen 14, and the impurity particles on the surface of the circuit board are quickly dropped into the garbage drawer 13 through vibrations of a certain frequency.

Claims

1. A circuit board baking dryer, comprising a dryer housing (10), Features: The upper end surface of the dryer housing (10) is provided with a plate placing opening (11), the top of the dryer housing (10) is provided with a plate turning device, one side of the plate turning device is provided with a hot air blower (12), a garbage drawer (13) is provided on the inner bottom wall of the dryer housing (10), the plate turning device comprises a drying plate frame (20), a ventilation hole (21), a rotating rod (22) and a driving motor (23), and the inner side of the dryer housing (10) is provided with a rotating rod (22). 2), one end of the rotating rod (22) is rotatably connected to the inner wall of the dryer housing (10), the other end of the rotating rod (22) passes through the side wall of the dryer housing (10) and the end is connected to a driving motor (23), a drying plate frame (20) is fixedly sleeved on the outer wall of the rotating rod (22), a plurality of ventilation holes (21) are provided on the side wall of the drying plate frame (20) close to the hot air blower (12), and a plurality of protrusions (24) are provided on the inner bottom wall of the drying plate frame (20).

2. A circuit board baking and drying machine according to claim 1, Features: The outer wall of the end of the rotating rod (22) close to the driving motor (23) is rotatably connected to the side wall of the dryer housing (10), and the rotating rod (22) is fixedly connected to the output shaft of the driving motor (23).

3. A circuit board baking and drying machine according to claim 1, Features: A screen (14) is provided at the bottom of the dryer housing (10).

4. A circuit board baking and drying machine according to claim 3, Features: A vibrator (15) is fixedly mounted on the inner walls of the dryer housing (10) on both sides opposite to each other, and the top end of the vibrator (15) is in contact with the bottom end surface of the screen (14).

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