Solvent drying device for printed circuit board

Abstract

The utility model discloses a printed circuit board solvent drying device which comprises a device shell, a feeding port formed in the front side of the device shell, a discharging port formed in the rear side of the device shell, a ventilation fence arranged at the top end of the device shell, a waste pool arranged at the bottom of the inner side of the device shell, a discharging pipe arranged at one end of the waste pool, a ventilation bin arranged at the bottom end of the ventilation fence and an air supply bin arranged at the bottom end of the ventilation bin. A first motor bin is arranged on one side of the ventilation bin, a third motor bin is arranged on one side of the first motor bin, and a second motor bin is arranged at the bottom end of the third motor bin. The air supply assembly is arranged on the inner side of the air supply bin; the guide assembly is arranged on the inner side of the device shell; the feeding assembly is arranged above the waste material pool; and the electric heating pipe is arranged between the air supply assembly and the guide assembly and is arranged on the device shell. Compared with the prior art, the circuit board drying device has the advantages that the direction of high-temperature airflow can be guided, so that the drying airflow can uniformly blow the surface of a circuit board, and residual solvent is convenient to clean.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board printing, in particular to a solvent drying device for a printed circuit board. Background Art

[0002] A printed circuit board (PCB) solvent drying unit is a piece of industrial equipment used in the printed circuit board (PCB) production process within the electronics manufacturing industry. Its primary function is to remove residual solvent from the PCB surface, ensuring that the board is dry for further processing or assembly.

[0003] However, the patents under the existing technology have the following disadvantages:

[0004] (1) The existing utility model PCB solvent drying device lacks a guide assembly and a guide structure. As a result, the airflow may be unevenly distributed within the PCB solvent drying device, resulting in uneven evaporation of the solvent on the PCB. This may cause some areas to be over-dried while other areas to be under-dried. Due to the uneven airflow, the overall drying efficiency may be reduced, and the drying time may need to be extended, which affects production efficiency and is not conducive to the cleaning of residual solvent. Utility Model Content

[0005] The technical problem to be solved by the present invention is to overcome the above technical defects and provide a printed circuit board solvent drying device which can guide the wind direction of high-temperature airflow so that the drying airflow can evenly sweep the surface of the circuit board, thereby facilitating the cleaning of residual solvent.

[0006] In order to solve the above problems, the technical solution of the utility model is: a printed circuit board solvent drying device, comprising:

[0007] The device shell is provided with a material inlet on the front side of the device shell, a material outlet on the rear side of the device shell, a ventilation fence is fixedly connected to the top of the device shell, a waste pool is provided at the bottom inside the device shell, one end of the waste pool is fixedly connected to a discharge pipe, a ventilation bin is provided at the bottom end of the ventilation fence, an air supply bin is provided at the bottom end of the ventilation bin, a motor bin 1 is provided on one side of the ventilation bin, a motor bin 3 is provided on one side of the motor bin 1, and a motor bin 2 is provided at the bottom end of the motor bin 3;

[0008] An air supply assembly is provided on the inner side of the air supply bin, and the air supply assembly includes: a limiting ring, a rotating ring, a fan blade, an auxiliary shaft 1, a motor 1, a driving wheel and a synchronous belt 1. The limiting ring is fixedly connected to the top and bottom ends of the inner side of the air supply bin, the rotating ring is rotatably connected between the limiting rings, the fan blade is fixedly connected to the inner side of the rotating ring, the auxiliary shaft 1 is rotatably connected to the inner side of the air supply bin, the motor 1 is fixedly connected to the inner side of the motor bin 1, the driving wheel is fixedly connected to the end of the driving shaft at the bottom end of the motor 1, and the synchronous belt 1 is provided on the outer side of the driving wheel, the auxiliary shaft 1 and the rotating ring;

[0009] A guide assembly, the guide assembly being arranged inside the device housing;

[0010] A feeding assembly, the feeding assembly being arranged above the waste pool;

[0011] The electric heating tube is arranged between the air supply component and the guide component and is fixedly connected to the device housing.

[0012] Furthermore, the guide assembly includes: a rotating shaft, a guide plate, a synchronous wheel one, an auxiliary shaft two, a synchronous belt two, a connecting frame, a limit rod, a connecting ring, a motor two, a rotating disk and an eccentric shaft, the rotating shaft is rotatably connected to the inner side of the device housing, the guide plate is fixedly connected to the outer side of the rotating shaft, the synchronous wheel one is fixedly connected to one end of the rotating shaft, the auxiliary shaft two is rotatably connected to the inner side of the motor bin two, the synchronous belt two is arranged on the outer side of the synchronous wheel one and the auxiliary shaft two, the connecting frame is fixedly connected to the top end of the synchronous belt two, the limit rod is fixedly connected to the inner side of the motor bin two, the connecting frame is slidably connected to the limit rod, the connecting ring is fixedly connected to the top end of the connecting frame, the connecting ring is slidably connected to the limit rod, the motor two is fixedly connected to the inner side of the motor bin two, the rotating disk is fixedly connected to the end of the motor two drive shaft, the eccentric shaft is fixedly connected to one side of the rotating disk, and the eccentric shaft is slidably connected to the connecting ring.

[0013] Furthermore, the feeding assembly includes: a feeding roller, a synchronous wheel two, an auxiliary shaft three, a synchronous belt three, a motor three, a synchronous wheel three, a synchronous belt four and a dust cover. The feeding rollers are equidistantly arranged on the inner side of the device housing and are rotationally connected to the device housing. The synchronous wheel two is fixedly connected to both ends of the feeding roller, the auxiliary shaft three is rotationally connected to both sides of the device housing, the synchronous belt three is arranged on the outside of the synchronous wheel two and the auxiliary shaft three, the motor three is fixedly connected to the inner side of the motor bin three, the synchronous wheel three is fixedly connected to the drive shaft ends on both sides of the motor three, the synchronous belt four is arranged on the outside of the synchronous wheel three and the synchronous wheel two closest to the feed port, and the dust cover is fixedly connected to both sides of the device housing.

[0014] The advantages of this utility model compared with the existing technology are:

[0015] (1) The utility model provides a printed circuit board solvent drying device with a guide assembly, which can guide the flow of high-temperature air in the printed circuit board solvent drying device, so that the high-temperature air can be evenly blown on the surface of the circuit board, so that the solvent on the surface of the circuit board can be evenly dried and cleaned, thereby improving the drying efficiency of the circuit board solvent. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model is a three-dimensional diagram of a printed circuit board solvent drying device.

[0017] Figure 2 This is a cross-sectional view of a printed circuit board solvent drying device of the utility model. Figure 1 .

[0018] Figure 3 This is a cross-sectional view of a printed circuit board solvent drying device of the utility model. Figure 2 .

[0019] Figure 4 It is an enlarged view of A of a printed circuit board solvent drying device of the present utility model.

[0020] Figure 5 This is a cross-sectional view of a printed circuit board solvent drying device of the utility model. Figure 3 .

[0021] Figure 6 This is a cross-sectional view of a printed circuit board solvent drying device of the utility model. Figure 4 .

[0022] Figure 7 This is a cross-sectional view of a printed circuit board solvent drying device of the utility model. Figure 5 .

[0023] Figure 8 This is a cross-sectional view of a printed circuit board solvent drying device of the utility model. Figure 6 .

[0024] As shown in the figure: 1. Device housing; 101. Feeding port; 102. Discharging port; 103. Ventilation fence; 104. Waste tank; 105. Discharge pipe; 106. Ventilation bin; 107. Air supply bin; 108. Motor bin 1; 109. Motor bin 3; 110. Motor bin 2; 2. Air supply assembly; 201. Limiting ring; 202. Rotating ring; 203. Fan blade; 204. Auxiliary shaft 1; 205. Motor 1; 206. Driving wheel; 207. Synchronous belt 1; 3. Guide assembly; 301. Rotating shaft; 302, guide plate; 303, synchronous wheel one; 304, auxiliary shaft two; 305, synchronous belt two; 306, connecting frame; 307, limit rod; 308, connecting ring; 309, motor two; 310, rotating disk; 311, eccentric shaft; 4, feeding assembly; 401, feeding roller; 402, synchronous wheel two; 403, auxiliary shaft three; 404, synchronous belt three; 405, motor three; 406, synchronous wheel three; 407, synchronous belt four; 408, dust cover; 5, electric heating tube. DETAILED DESCRIPTION

[0025] Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present disclosure. Rather, they are merely examples of devices consistent with certain aspects of the present disclosure, as detailed in the appended claims.

[0026] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0027] Example 1:

[0028] like Figures 1 to 8As shown, a printed circuit board solvent drying device comprises: a device housing 1, a material inlet 101 is opened on the front side of the device housing 1, a material outlet 102 is opened on the rear side of the device housing 1, a ventilation fence 103 is fixedly connected to the top of the device housing 1, a waste pool 104 is opened on the bottom of the inner side of the device housing 1, a discharge pipe 105 is fixedly connected to one end of the waste pool 104, a ventilation bin 106 is opened at the bottom end of the ventilation fence 103, an air supply bin 107 is opened at the bottom end of the ventilation bin 106, and the ventilation bin 106 is provided with a ventilation bin 107. A motor compartment 1 108 is opened on one side, a motor compartment 3 109 is opened on one side of the motor compartment 108, and a motor compartment 2 110 is opened at the bottom of the motor compartment 3 109; an air supply component 2, the air supply component 2 is arranged on the inner side of the air supply compartment 107; a guide component 3, the guide component 3 is arranged on the inner side of the device housing 1; a feeding component 4, the feeding component 4 is arranged above the waste pool 104; an electric heating tube 5, the electric heating tube 5 is arranged between the air supply component 2 and the guide component 3 and is fixedly connected to the device housing 1.

[0029] The feeding assembly 4 includes: a feeding roller 401, a synchronous wheel 2 402, an auxiliary shaft 3 403, a synchronous belt 3 404, a motor 3 405, a synchronous wheel 3 406, a synchronous belt 4 407 and a dust cover 408. The feeding rollers 401 are equidistantly arranged on the inner side of the device housing 1 and are rotationally connected to the device housing 1. The synchronous wheel 2 402 is fixedly connected to both ends of the feeding roller 401. The auxiliary shaft 3 403 is rotationally connected to both sides of the device housing 1. The synchronous belt 3 404 is arranged on the outside of the synchronous wheel 2 402 and the auxiliary shaft 3 403. The motor 3 405 is fixedly connected to the inner side of the motor bin 3 109. The synchronous wheel 3 406 is fixedly connected to the drive shaft ends on both sides of the motor 3 405. The synchronous belt 407 is arranged on the outside of the synchronous wheel 3 406 and the synchronous wheel 2 402 closest to the feed port 101. The dust cover 408 is fixedly connected to both sides of the device housing 1.

[0030] Starting motor three 405 causes synchronous wheel three 406 to rotate, and synchronous wheel three 406 causes synchronous wheel two 402 to rotate through synchronous belt four 407, and drives all feeding rollers 401 to rotate synchronously through synchronous belt three 404, placing the circuit board with solvent on the feeding roller 401 and feeding it into the interior of the device housing 1.

[0031] The air supply component 2 includes: a limiting ring 201, a rotating ring 202, fan blades 203, an auxiliary shaft 204, a motor 205, a driving wheel 206 and a synchronous belt 207. The limiting ring 201 is fixedly connected to the top and bottom ends of the inner side of the air supply bin 107, the rotating ring 202 is rotatably connected between the limiting rings 201, the fan blades 203 are fixedly connected to the inner side of the rotating ring 202, the auxiliary shaft 204 is rotatably connected to the inner side of the air supply bin 107, the motor 205 is fixedly connected to the inner side of the motor bin 108, the driving wheel 206 is fixedly connected to the end of the driving shaft at the bottom end of the motor 205, and the synchronous belt 207 is arranged on the outside of the driving wheel 206, the auxiliary shaft 204 and the rotating ring 202.

[0032] The driving motor 205 rotates the driving wheel 206, and the driving wheel 206 drives the rotating ring 202 to rotate through the synchronous belt 207, so that the fan blades 203 rotate. The auxiliary shaft 204 is used to increase the wrap angle between the synchronous belt 207 and the rotating ring 202, thereby improving the transmission capacity. The external air is drawn into the ventilation chamber 106 through the ventilation fence 103 and sent into the interior of the device housing 1. The electric heating tube 5 is started to heat the flowing air. The electric heating tube 5 has its own temperature sensor to monitor and control the heating temperature.

[0033] The guide assembly 3 includes: a rotating shaft 301, a guide plate 302, a synchronous wheel 1 303, an auxiliary shaft 2 304, a synchronous belt 2 305, a connecting frame 306, a limiting rod 307, a connecting ring 308, a motor 2 309, a rotating disk 310 and an eccentric shaft 311. The rotating shaft 301 is rotatably connected to the inside of the device housing 1, the guide plate 302 is fixedly connected to the outside of the rotating shaft 301, the synchronous wheel 1 303 is fixedly connected to one end of the rotating shaft 301, the auxiliary shaft 2 304 is rotatably connected to the inside of the motor compartment 2 110, and the synchronous belt 2 305 is provided between the synchronous wheel 1 303 and the auxiliary shaft. On the outside of auxiliary shaft 2 304, connecting frame 306 is fixedly connected to the top of synchronous belt 2 305, limiting rod 307 is fixedly connected to the inside of motor bin 2 110, connecting frame 306 and limiting rod 307 are slidably connected, connecting ring 308 is fixedly connected to the top of connecting frame 306, connecting ring 308 and limiting rod 307 are slidably connected, motor 2 309 is fixedly connected to the inside of motor bin 2 110, rotating disk 310 is fixedly connected to the end of the driving shaft of motor 2 309, eccentric shaft 311 is fixedly connected to one side of rotating disk 310, and eccentric shaft 311 is slidably connected to connecting ring 308.

[0034] Starting motor 2 309 causes rotating disk 310 to rotate, which drives eccentric shaft 311 to operate. Eccentric shaft 311 slides back and forth in connecting ring 308, causing connecting frame 306 to drive synchronous belt 2 305 to rotate back and forth, causing synchronous pulley 1 303 to drive rotating shaft 301 and guide plate 302 to rotate back and forth, so that heated air can blow across the surface of the circuit board, blowing excess solvent on the surface of the circuit board into waste pool 104, and accelerating the drying of the remaining solvent, thereby achieving solvent drying.

[0035] The electrical components appearing in this article are all connected to an external main controller and 220V AC power, and the main controller can be a conventional known device that controls a computer, etc. The specific implementation method of this disclosure omits the detailed description of known functions and known components. To ensure the compatibility of the equipment, the operating methods used are consistent with the parameters of marketed equipment.

[0036] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A printed circuit board solvent drying device, characterized in that: include: The device shell (1) is provided with a material inlet (101) on the front side of the device shell (1), a material outlet (102) on the rear side of the device shell (1), a ventilation fence (103) fixedly connected to the top of the device shell (1), a waste material pool (104) on the inner bottom of the device shell (1), a discharge pipe (105) fixedly connected to one end of the waste material pool (104), a ventilation bin (106) on the bottom end of the ventilation fence (103), an air supply bin (107) on the bottom end of the ventilation bin (106), a motor bin 1 (108) on one side of the motor bin 1 (108), a motor bin 3 (109) on one side of the motor bin 1 (108), and a motor bin 2 (110) on the bottom end of the motor bin 3 (109); An air supply assembly (2) is provided inside an air supply bin (107), and the air supply assembly (2) comprises: a limiting ring (201), a rotating ring (202), a fan blade (203), an auxiliary shaft (204), a motor (205), a driving wheel (206) and a synchronous belt (207), wherein the limiting ring (201) is fixedly connected to the top and bottom ends of the inner side of the air supply bin (107), and the rotating ring (202) is rotatably connected to the limiting ring (201). 1), the fan blade (203) is fixedly connected to the inner side of the rotating ring (202), the auxiliary shaft (204) is rotatably connected to the inner side of the air supply chamber (107), the motor (205) is fixedly connected to the inner side of the motor chamber (108), the driving wheel (206) is fixedly connected to the end of the driving shaft at the bottom end of the motor (205), and the synchronous belt (207) is arranged on the outer sides of the driving wheel (206), the auxiliary shaft (204) and the rotating ring (202); A guide assembly (3), wherein the guide assembly (3) is arranged inside the device housing (1); A feeding assembly (4), the feeding assembly (4) being arranged above the waste pool (104); An electric heating pipe (5) is provided between the air supply assembly (2) and the guide assembly (3) and is fixedly connected to the device housing (1).

2. A printed circuit board solvent drying device according to claim 1, characterized in that: The guide assembly (3) comprises: a rotating shaft (301), a guide plate (302), a synchronous wheel (303), an auxiliary shaft (304), a synchronous belt (305), a connecting frame (306), a limiting rod (307), a connecting ring (308), a motor (309), a rotating disk (310) and an eccentric shaft (311), wherein the rotating shaft (301) is rotatably connected to the inner side of the device housing (1), the guide plate (302) is fixedly connected to the outer side of the rotating shaft (301), the synchronous wheel (303) is fixedly connected to one end of the rotating shaft (301), the auxiliary shaft (304) is rotatably connected to the inner side of the motor compartment (110), and the synchronous belt (305) is arranged between the synchronous wheel (303) and the auxiliary shaft. The second auxiliary shaft (304) is outside, the connecting frame (306) is fixedly connected to the top of the second synchronous belt (305), the limiting rod (307) is fixedly connected to the inside of the second motor compartment (110), the connecting frame (306) and the limiting rod (307) are slidably connected, the connecting ring (308) is fixedly connected to the top of the connecting frame (306), the connecting ring (308) and the limiting rod (307) are slidably connected, the second motor (309) is fixedly connected to the inside of the second motor compartment (110), the rotating disk (310) is fixedly connected to the end of the driving shaft of the second motor (309), the eccentric shaft (311) is fixedly connected to one side of the rotating disk (310), and the eccentric shaft (311) is slidably connected to the connecting ring (308).

3. A printed circuit board solvent drying device according to claim 1, characterized in that: The feeding assembly (4) comprises: a feeding roller (401), a second synchronous wheel (402), a third auxiliary shaft (403), a third synchronous belt (404), a third motor (405), a third synchronous wheel (406), a fourth synchronous belt (407) and a dust cover (408); the feeding rollers (401) are arranged equidistantly inside the device housing (1) and are rotatably connected to the device housing (1); the second synchronous wheel (402) is fixedly connected to both ends of the feeding roller (401); the third auxiliary shaft (403) is rotatably connected to the device housing (1) on both sides, the synchronous belt three (404) is arranged on the outside of the synchronous wheel two (402) and the auxiliary shaft three (403), the motor three (405) is fixedly connected to the inside of the motor compartment three (109), the synchronous wheel three (406) is fixedly connected to the drive shaft ends on both sides of the motor three (405), the synchronous belt four (407) is arranged on the outside of the synchronous wheel three (406) and the synchronous wheel two (402) closest to the feed port (101), and the dust cover (408) is fixedly connected to both sides of the device housing (1).

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