Drying equipment for PCB processing

Abstract

The utility model relates to drying equipment for PCB (printed circuit board) processing, which comprises a drying box with inlets and outlets in two side walls, a bottom plate with one end sequentially penetrating through the two inlets and outlets is arranged on the outer side of the drying box, three groups of baffles are uniformly arranged at the top of the bottom plate, two groups of baffles seal the two groups of inlets and outlets, and two groups of baffles seal the two groups of inlets and outlets. A fixing mechanism is arranged between any two adjacent sets of baffles, a strip-shaped plate used for a lead screw to penetrate through is arranged at the bottom of one side of the bottom plate, the lead screw is driven by a motor, and an auxiliary mechanism is arranged at the bottom of the other side of the bottom plate. The fixing mechanism comprises two sets of vertical plates, screw rods are correspondingly arranged between the back faces of the vertical plates and the corresponding baffles, the two corresponding sets of screw rods are connected through screw pipes, and multiple sets of supporting strips are correspondingly arranged on the front faces of the vertical plates. According to the invention, the processing efficiency of the PCB can be effectively improved.

Description

Technical Field

[0001] This invention relates to the field of PCB board processing, and in particular to a drying device for PCB board processing. Background Technology

[0002] In the PCB manufacturing process, adhesives are used to fix the PCB board and other components. After the adhesive is used, it needs to be cured to ensure its durability. Most of the adhesive curing equipment currently used adopts a heat oven for drying and curing, which ensures that gas heating curing does not affect the quality of the PCB board.

[0003] For example, a PCB board processing adhesive drying oven with patent number CN222428491U has the following defects when drying PCB boards: after drying, the oven door is opened and the placement rack is pushed out of the drying oven. Then, several PCB boards on the rack are removed one by one, and then new PCB boards are placed one by one on the rack. The whole process of removing and placing PCB boards is extremely time-consuming. During the entire process, the drying oven is idle, which leads to a very limited number of times the drying oven can be used per shift, resulting in extremely low PCB board processing efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a drying device for PCB board processing.

[0005] The technical problem of this invention is mainly solved by the following technical solution:

[0006] A drying device for PCB board processing includes a drying chamber with inlets and outlets on both side walls. A bottom plate with one end passing through two sets of inlets and outlets is provided on the outside of the drying chamber. Three sets of baffles are evenly provided on the top of the bottom plate, two sets of baffles sealing the two sets of inlets and outlets, and a fixing mechanism is provided between any two adjacent sets of baffles. A strip plate for a lead screw to pass through is provided on one side of the bottom of the bottom plate. The lead screw is driven by a motor. An auxiliary mechanism is provided on the other side of the bottom of the bottom plate.

[0007] The fixing mechanism includes two sets of vertical plates. Each vertical plate has a screw rod between its back and the corresponding baffle. The two sets of screw rods are connected by a screw tube. The front of the vertical plate has multiple sets of support bars.

[0008] Preferably, the auxiliary mechanism and the strip plate are located on both ends of the bottom plate outside the drying oven. The auxiliary mechanism includes a mounting plate. An electromagnet is provided at the top of the mounting plate and contacts the bottom surface of the bottom plate. A set of rollers that contacts the ground is connected to the bottom of the mounting plate through multiple sets of vertical rods. A square rod extending into the drying oven is provided on one side of the vertical rod. A square tube sleeved on the square rod is provided inside the drying oven.

[0009] Preferably, the strip plate is provided with a screw hole for screwing the lead screw, the bottom of the drying oven is provided with a base located below the strip plate, the top of the base is provided with a support plate for fixing the end of the lead screw by a bearing, and the strip plate is located between the support plate and the drying oven.

[0010] Preferably, the drying chamber is equipped with support rollers for supporting the bottom plate, and the motor is located inside the drying chamber below the inlet and outlet.

[0011] Preferably, air hoods are provided on both sides of the drying chamber above the base plate, wherein the straight line formed by the two sets of air hoods is perpendicularly intersected by the straight line formed by the two sets of inlet and outlet. One set of air hoods is connected to the hot air blower through a pipe, and the other set of air hoods is connected to the drying chamber below the base plate through a recovery pipe. Ventilation holes are also evenly provided at the bottom of the side wall of the drying chamber.

[0012] The beneficial effects of this invention are as follows: While drying products on the internal fixing mechanism, the drying oven can simultaneously place new products on the external fixing mechanism. Then, the dried products are exported from the drying oven via a movable base plate, and the fixing mechanism holding the products to be processed slides into the drying oven for drying. This ensures that the drying of products on one set of fixing mechanisms is not affected while the drying oven is drying products on another set of fixing mechanisms, thus guaranteeing the continuity and sustainability of the drying process and effectively improving the processing efficiency of the products. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the present invention;

[0014] Figure 2 This is a cross-sectional view of the present invention.

[0015] In the diagram: 1. Drying oven; 2. Inlet / outlet; 3. Base plate; 4. Baffle; 5. Fixing mechanism; 51. Vertical plate; 52. Screw; 53. Screw tube; 54. Support bar; 6. Strip plate; 7. Lead screw; 8. Motor; 9. Auxiliary mechanism; 91. Mounting plate; 92. Electromagnet; 93. Vertical rod; 94. Roller assembly; 95. Square rod; 96. Square tube; 10. Base; 11. Support plate; 12. Support roller; 13. Fan hood; 14. Recovery pipe; 15. Vent hole. Detailed Implementation

[0016] The technical solution of the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0017] A drying device for PCB board processing includes a drying chamber 1 with inlets and outlets 2 on both side walls. A bottom plate 3 is provided on the outside of the drying chamber 1, with one end passing through two sets of inlets and outlets 2 in sequence. Three sets of baffles 4 are evenly arranged on the top of the bottom plate 3, wherein two sets of baffles 4 seal the two sets of inlets and outlets 2, and a fixing mechanism 5 is provided between any two adjacent sets of baffles 4. A strip plate 6 is provided on the bottom of one side of the bottom plate 3 for a lead screw 7 to pass through. The lead screw 7 is driven by a motor 8. An auxiliary mechanism 9 is provided on the bottom of the other side of the bottom plate 3.

[0018] The fixing mechanism 5 includes two sets of vertical plates 51. Each vertical plate 51 has a screw 52 between its back and the corresponding baffle 4. The two sets of screws 52 are connected by a screw tube 53. The front of the vertical plate 51 has multiple sets of support bars 54.

[0019] The auxiliary mechanism 9 and the strip plate 6 are respectively located on the two ends of the bottom plate 3 outside the drying oven 1. The auxiliary mechanism 9 includes a mounting plate 91. The top of the mounting plate 91 is provided with an electromagnet 92 that contacts the bottom surface of the bottom plate 3. The bottom of the mounting plate 91 is connected to a roller group 94 that contacts the ground through multiple sets of vertical rods 93. A square rod 95 extending into the drying oven 1 is provided on one side of the vertical rod 93. A square tube 96 wrapped around the square rod 95 is provided inside the drying oven 1.

[0020] like Figure 1 , 2 As shown, the strip plate 6 is provided with a screw hole for screwing the lead screw 7. The bottom of the drying oven 1 is provided with a base 10 located below the strip plate 6. The top of the base 10 is provided with a support plate 11 that fixes the end of the lead screw 7 by bearing. The strip plate 6 is located between the support plate 11 and the drying oven 1. In this embodiment, the support plate 11 plays a supporting and fixing role for the suspended end of the lead screw 7, thereby effectively improving its stability.

[0021] like Figure 2 As shown, the drying chamber 1 is equipped with a support roller 12 for supporting the bottom plate 3, and the motor 8 is located inside the drying chamber 1 below the inlet / outlet 2. The support roller 12 supports the bottom plate 3, and when the bottom plate 3 slides inside the drying chamber 1, it can drive the support roller 12 to roll, so as to facilitate the sliding operation of the bottom plate 3 inside the drying chamber 1.

[0022] On both sides of the drying chamber 1 above the base plate 3, there are air hoods 13. The straight line formed by the two sets of air hoods 13 is perpendicular to the straight line formed by the two sets of inlet and outlet 2. One set of air hoods 13 is connected to the hot air blower through a pipe, and the other set of air hoods 13 is connected to the drying chamber 1 below the base plate 3 through a recovery pipe 14. Ventilation holes 15 are also evenly arranged at the bottom of the side wall of the drying chamber 1.

[0023] Method of using the present invention: as follows Figure 2 As shown, the distance between the two sets of vertical plates 51 in the fixing mechanism 5 is adjusted according to the length of the PCB board in the processing batch, so that the fixing mechanism 5 can clamp and fix PCB boards of different lengths, thereby improving its applicability. The specific steps are to simultaneously rotate the multiple sets of screw tubes 53 on the same side to expand or reduce the distance between the two sets of screws 52 inside, thereby adjusting the position of the vertical plate 51 above the base plate 3, so as to adjust the distance between the two sets of vertical plates 51 in the fixing mechanism 5.

[0024] The initial state of this device is as follows: Figure 1 , 2 As shown, the worker will place the PCB board in an orderly manner between the two sets of vertical plates 51 in the left fixing mechanism 5. After its two ends are supported and fixed by the corresponding support bars 54, the motor 8 drives the lead screw 7 to rotate in the screw hole on the strip plate 6, thereby causing the strip plate 6 to move and driving the base plate 3 to move to the right. At this time, the base plate 3 drives the fixing mechanism 5 and the PCB board above it to slide into the drying oven 1 through the inlet and outlet 2. The fixing mechanism 5 inside the drying oven 1, under the influence of the base plate 3 and the baffle 4, slides out from the drying oven 1 through the inlet and outlet to the right side of the drying oven 1. At this time, the two sets of baffles 4 on the left side... When inlet and outlet 2 are sealed, hot air is drawn into the drying chamber 1 through the front hood 13 by the exhaust fan. The hot air flows through the gap between the two adjacent PCB boards, thus drying the PCB boards. At this time, the baffle 4 at inlet and outlet 2 can effectively prevent the hot air from flowing out. Then, the hot air flows through the rear hood 13 and the recovery pipe 14 to the drying chamber 1 below the bottom plate 3 to heat it, thereby recovering the residual heat in the airflow, so that it can heat and keep the bottom plate 3 warm. Finally, the gas is discharged through the vent 15.

[0025] While the PCB board on the fixing mechanism inside the drying oven 1 is drying, the PCB board can be placed on the unused fixing mechanism 5 on the right side of the drying oven 1. After the PCB board inside the drying oven 1 is dried, the motor 8, through the lead screw 7, strip plate 6, base plate 3, and baffle 4, drives the PCB board on the fixing mechanism 5 inside the drying oven 1 to slide to the left side of the drying oven 1. At this time, the base plate 3 will drive the PCB board on the right fixing mechanism 5 to slide into the drying oven 1 for drying. Then, the PCB board on the left fixing mechanism 5 of the drying oven 1 is removed and a new product is placed on it, and the process is repeated. The above steps enable the drying oven 1 to dry the products on its internal fixing mechanism 5 while simultaneously placing new products on its external fixing mechanism 5. Then, the dried products are unloaded from the drying oven 1 via the movable base plate 3, which also drives the fixing mechanism 5 holding the products to be processed to slide into the drying oven 1 for drying. This ensures that the drying oven 1 can dry the products on another set of fixing mechanisms 5 without affecting the drying of products on the other set of fixing mechanisms 5 while removing and placing products on one set of fixing mechanisms 5, thus ensuring the continuity and sustainability of the drying work and effectively improving the processing efficiency of the products.

[0026] When the base plate 3 moves to the right, if there is a product on the right-side fixing mechanism 5 causing it to be heavy, the electromagnet 92 will be energized and magnetically connected to the base plate 3. The rightward movement of the base plate 3 will drive the mounting plate 91 and the vertical rod 93, which in turn drives the roller assembly 94 to move on the ground. This provides support and fixation for the end of the base plate suspended on the right side of the drying oven 1. Simultaneously, the movement of the vertical rod 93 will cause the square rod 95 to slide within the square tube 96. The square tube 96 fixes the square rod 95, preventing the vertical rod 93 and other components from tilting or tipping over. When the base plate 3 moves to the left back to its original position, if... Figure 2 As shown, at this time, the electromagnet 92 is de-energized and separates from the base plate 3, so that the auxiliary mechanism 9, which moves together with the base plate 3, can support the right side of the base plate 3. Meanwhile, the support plate 11 can support the left side of the base plate 3 through the lead screw 7 and the strip plate 6, thereby improving the stability of the base plate 3.

[0027] The present invention has been described in detail above, but the content described is only a preferred embodiment of the present invention and should not be considered as limiting the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A drying device for PCB board processing, comprising a drying chamber with inlets and outlets on both side walls, characterized in that: The drying oven has a bottom plate on the outside with one end passing through two sets of inlets and outlets. Three sets of baffles are evenly arranged on the top of the bottom plate. Two sets of baffles seal the two sets of inlets and outlets, and a fixing mechanism is provided between any two adjacent sets of baffles. A strip plate is provided on the bottom of one side of the bottom plate for a lead screw to pass through. The lead screw is driven by a motor. An auxiliary mechanism is provided on the bottom of the other side of the bottom plate. The fixing mechanism includes two sets of vertical plates. Each vertical plate has a screw rod between its back and the corresponding baffle. The two sets of screw rods are connected by a screw tube. The front of the vertical plate has multiple sets of support bars.

2. The drying equipment for PCB board processing according to claim 1, characterized in that: The auxiliary mechanism and the strip plate are located on both ends of the bottom plate outside the drying oven. The auxiliary mechanism includes a mounting plate. An electromagnet is provided at the top of the mounting plate and contacts the bottom surface of the bottom plate. A set of rollers that contacts the ground is connected to the bottom of the mounting plate through multiple sets of vertical rods. A square rod extending into the drying oven is provided on one side of the vertical rod. A square tube sleeved on the square rod is provided inside the drying oven.

3. The drying equipment for PCB board processing according to claim 1, characterized in that: The strip plate is provided with a screw hole for screwing the lead screw. The bottom of the drying oven is provided with a base located below the strip plate. The top of the base is provided with a support plate that fixes the end of the lead screw through a bearing. The strip plate is located between the support plate and the drying oven.

4. The drying equipment for PCB board processing according to claim 1, characterized in that: The drying chamber is equipped with support rollers for supporting the bottom plate, and the motor is located inside the drying chamber below the inlet and outlet.

5. The drying equipment for PCB board processing according to claim 1, characterized in that: On both sides of the drying chamber above the base plate, there are air hoods. The straight line formed by the two sets of air hoods intersects perpendicularly with the straight line formed by the two sets of inlet and outlet. One set of air hoods is connected to the hot air blower through a pipe, and the other set of air hoods is connected to the drying chamber below the base plate through a recovery pipe. Ventilation holes are also evenly arranged at the bottom of the side wall of the drying chamber.

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