Batch drying device

Abstract

The utility model relates to a batch drying device, which belongs to the field of PCB (Printed Circuit Board) drying and comprises three box bodies, an adjusting mechanism is arranged on the front surface of the box body on the lower side, four supporting legs are fixed at the bottom of each box body, a same bottom plate is fixed at the bottom ends of the four supporting legs at the bottom, a drying mechanism is arranged above the bottom plate, and the drying mechanism is arranged above the bottom plate. The left ends and the right ends of the three box bodies communicate with connecting pipes correspondingly, the front faces of the three box bodies fixedly communicate with pressure adjusting pipes correspondingly, and the left side walls and the right side walls of inner cavities of the three box bodies are slidably connected with drying bins correspondingly. According to the batch drying device, a motor is started, three moving plates start to horizontally move, two adjacent limiting plates are used for driving a plurality of air cylinders to swing, the air outlet direction of the air cylinders can be adjusted, the purpose of improving the drying efficiency is achieved, an air heater is started, heated air penetrates through a plurality of drying plates to be dried and enters three box bodies through a left side connecting pipe, and the drying efficiency is improved. And moisture in the air can be absorbed by utilizing the plurality of drying plates, so that the PCB is prevented from being affected with damp.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB board drying, in particular to a batch drying device. Background Art

[0002] Drying refers to the process of removing solvents and retaining solid content in some way. It usually refers to the process of passing hot air to evaporate and take away the moisture in the material. According to the three ways of heat transmission: heat conduction, heat convection and heat radiation, there are three corresponding ways of drying: drum drying, hot air drying and far-infrared drying. In the process of PCB board production, in order to ensure the bonding performance and quality of patch component adhesives and pad coatings, it is necessary to ensure that the surface of the PCB board is completely dry. At this time, the PCB board needs to be dried.

[0003] For example, Chinese patent CN 220507627 U discloses a batch drying device, including a bottom plate and a drying box, a control module is fixedly installed on one side of the top of the bottom plate, three drying boxes are provided, and fixing rods are fixedly installed on the bottom of the three drying boxes, and two groups of fixing rods on the upper side are fixedly installed on the top of the drying box at the lower side and the middle part respectively, and the fixing rods on the lower side are fixedly installed on the top of the bottom plate, and box doors are rotatably installed on the sides of the three drying boxes, and the box doors correspond to the openings on the drying boxes, and drying mechanisms are installed on the bottom plate and the drying boxes, and placement mechanisms are installed in the three drying boxes; the drying mechanism includes a hot air blower, an air outlet pipe, an air distribution pipe, an air outlet hole and an air outlet plate, the interior of the air outlet plate is hollow, and three air outlet plates are provided.

[0004] The above-mentioned batch drying device still has certain shortcomings. It enables PCBs to be dried continuously in batches to prevent the situation of lack of material or piling of materials in subsequent processing of PCB boards, which is convenient for use. However, it only passes hot air into the interior of the drying box to dry the PCB boards, which will make the drying efficiency low. It is necessary to wait for the hot air to fill the interior of the drying box before the PCB boards can be dried. Therefore, this application proposes a batch drying device to solve the above-mentioned problem. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a batch drying device, which has the advantage of adjusting the drying angle and solves the problem of low drying efficiency.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a batch drying device, comprising three boxes, the front of the lower box is provided with an adjustment mechanism, the bottom of the three boxes are fixed with four legs, the bottom ends of the four legs are fixed with the same bottom plate, a drying mechanism is provided above the bottom plate, the left and right ends of the three boxes are respectively connected with connecting pipes, the front of the three boxes are fixedly connected with pressure regulating pipes, and the left and right side walls of the inner cavity of the three boxes are slidably connected with drying bins;

[0007] The adjusting mechanism comprises a motor fixed to the front face of the lower box body, the inner top walls of the three boxes are all fixed with hollow plates, the lower surfaces of the three hollow plates are all hinged with a plurality of air tubes through hinge shafts, the back walls of the inner cavities of the three boxes are all horizontally slidably connected with movable plates, the front faces of the three movable plates are all rotatably connected with discs through bearings, the front faces of the plurality of discs are all fixed with two limit plates, the front and rear side walls of the inner cavities of the three boxes are all rotatably connected with movable rods through bearings, the outer sides of the three movable rods are all fixed with diamond blocks, the front ends of the three movable rods respectively penetrate the front walls of the inner cavities of the three boxes and respectively extend to the front sides of the three boxes and are respectively fixed with three worm gears, and the right sides of the three worm gears are all meshed with worms;

[0008] The drying mechanism includes an installation box fixed on the upper surface of the bottom plate, a hot air blower is fixed to the inner bottom wall of the installation box, a plurality of drying plates are fixed between the top wall and the bottom wall of the inner cavity of the installation box by bolts, and three fixed pipes are fixedly connected to the connection point between the connecting pipe on the left and the three box bodies.

[0009] Furthermore, the plurality of air ducts are respectively connected to the three hollow plates via hoses, and two adjacent limit plates are respectively located on the left and right sides of the air duct.

[0010] Furthermore, a connecting rod is fixed between two adjacent worm gears, and the lower worm gear is fixed on the outer side of the motor output shaft.

[0011] Furthermore, the three diamond blocks are movably fitted on the right sides of the three movable plates, and the back sides of the three boxes are all equipped with installation doors.

[0012] Furthermore, the three fixed pipes are respectively connected to the left sides of the three hollow plates, and the left sides of the three drying plates are each provided with a plurality of ventilation holes extending to the right sides thereof.

[0013] Furthermore, the two connecting pipes are respectively connected to the left and right sides of the installation box, and the two connecting pipes are respectively connected to the left and right sides of the three boxes and air valves are fixed inside them.

[0014] Furthermore, the three drying bins are all in the shape of a rectangular body with a missing upper surface and a plurality of ventilation holes opened on the outer side, and the left and right side walls of the inner cavity of the three boxes are fixed with slideways slidably connected to the drying bins.

[0015] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0016] 1. The batch drying device starts the motor to make the three movable plates start to move horizontally, and uses two adjacent limit plates to drive multiple air ducts to swing, which can adjust the air outlet direction of multiple air ducts to achieve the purpose of improving drying efficiency.

[0017] 2. The batch drying device starts the hot air blower, and the heated air passes through multiple drying plates for drying, and enters the three boxes through the left connecting pipe, and is blown to the outside of the PCB boards that need to be dried through multiple air ducts. Multiple drying plates can absorb moisture in the air to prevent the PCB boards from getting damp. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a three-dimensional diagram of the box structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the adjustment mechanism of the utility model;

[0021] Figure 4 It is a schematic diagram of the drying mechanism of the utility model.

[0022] In the figure: 1 box body, 2 adjustment mechanism, 201 motor, 202 hollow plate, 203 air duct, 204 movable plate, 205 disc, 206 limit plate, 207 movable rod, 208 diamond block, 209 worm gear, 210 worm, 3 bottom plate, 4 drying mechanism, 401 installation box, 402 hot air blower, 403 drying plate, 404 fixed pipe, 5 connecting pipe, 6 supporting feet, 7 pressure regulating pipe, 8 drying bin. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-2A batch drying device in this embodiment includes three boxes 1, an adjusting mechanism 2 is provided on the front of the lower box 1, four legs 6 are fixed to the bottom of the three boxes 1, the bottom ends of the four legs 6 are fixed to the same bottom plate 3, a drying mechanism 4 is provided above the bottom plate 3, the left and right ends of the three boxes 1 are respectively connected with connecting pipes 5, the fronts of the three boxes 1 are fixedly connected with pressure regulating pipes 7, and the left and right side walls of the inner cavities of the three boxes 1 are slidably connected with drying bins 8.

[0025] The three drying bins 8 are all rectangular bodies with a missing upper surface and multiple ventilation holes on the outer side. The left and right side walls of the inner cavity of the three boxes 1 are fixed with slideways that are slidably connected to the drying bins 8.

[0026] See also Figure 3 In order to improve the drying efficiency, the adjustment mechanism 2 in this embodiment includes a motor 201 fixed to the front of the lower box body 1, the inner top walls of the three boxes 1 are fixed with hollow plates 202, the lower surfaces of the three hollow plates 202 are hinged with multiple air tubes 203 through hinge shafts, the back walls of the inner cavities of the three boxes 1 are horizontally slidably connected with movable plates 204, the front faces of the three movable plates 204 are rotatably connected with discs 205 through bearings, and the front faces of the multiple discs 205 are fixed with two limit plates 206, and the front and rear side walls of the inner cavities of the three boxes 1 are rotatably connected with movable rods 207 through bearings, and diamond blocks 208 are fixed on the outer sides of the three movable rods 207. The front ends of the three movable rods 207 respectively penetrate the positive walls of the inner cavities of the three boxes 1 and extend to the front sides of the three boxes 1 respectively and are respectively fixed with three worm gears 209, and the right sides of the three worm gears 209 are meshed with worms 210.

[0027] In this example, multiple air ducts 203 are connected to the three hollow plates 202 through hoses, and two adjacent limit plates 206 are respectively located on the left and right sides of the air duct 203. Three diamond blocks 208 are respectively movably fitted on the right sides of the three movable plates 204. By starting the motor 201, multiple worm gears 210 drive multiple worm wheels 209 to rotate, so that the multiple diamond blocks 208 start to rotate, and the three movable plates 204 start to move horizontally. The multiple air ducts 203 are driven to swing by two adjacent limit plates 206, and the air outlet directions of the multiple air ducts 203 can be adjusted to achieve the purpose of improving the drying efficiency. Installation doors are installed on the back sides of the three box bodies 1. The installation doors are opened, and the three drying bins 8 are pulled out. The PCB boards to be dried are placed on the upper surfaces of the three drying bins 8, and then the installation doors are closed.

[0028] It should be noted that by starting the motor 201, the three movable plates 204 begin to move horizontally, and the two adjacent limit plates 206 are used to drive the multiple air cylinders 203 to swing, so that the air outlet directions of the multiple air cylinders 203 can be adjusted to achieve the purpose of improving the drying efficiency.

[0029] See also Figure 4 In order to absorb moisture in the air and prevent the PCB board from getting damp, the drying mechanism 4 in this embodiment includes an installation box 401 fixed to the upper surface of the bottom plate 3, a hot air blower 402 is fixed to the inner bottom wall of the installation box 401, and a plurality of drying plates 403 are fixed between the top wall and the bottom wall of the inner cavity of the installation box 401 by bolts, and three fixed pipes 404 are fixedly connected to the connection between the left connecting pipe 5 and the three box bodies 1.

[0030] In this example, the three fixed tubes 404 are respectively connected to the left sides of the three hollow plates 202, and the left sides of the three drying plates 403 are each provided with a plurality of ventilation holes extending to the right sides thereof. The two connecting tubes 5 are respectively connected to the left and right sides of the installation box 401, and the hot air blower 402 is started to draw the air in the three boxes 1 into the interior of the installation box 401, and then the air is heated. The heated air then passes through the plurality of drying plates 403 for drying, and enters the three boxes 1 through the left connecting tube 5, and is blown to the outside of the PCB board to be dried through the plurality of air cylinders 203. The two connecting tubes 5 are respectively connected to the left and right sides of the three boxes 1 and are each fixed with an air valve. The plurality of drying plates 403 can absorb moisture in the air to prevent the PCB board from getting damp.

[0031] It should be noted that, when the hot air blower 402 is started, the heated air passes through multiple drying plates 403 for drying, enters the three boxes 1 through the left connecting pipe 5, and is blown to the outside of the PCB board that needs to be dried through multiple air ducts 203. The multiple drying plates 403 can absorb moisture in the air to prevent the PCB board from getting damp.

[0032] It can be understood that the electrical components appearing in the text are all electrically connected to the main controller and the power supply and the electrical components appearing in the text are all conventionally known devices, and this application will not go into too much detail. The main controller can be a conventionally known device that plays a control role for a computer, etc. The control circuit of the main controller can be realized by simple programming by technicians in this field, and the provision of power supply is also common knowledge in this field. In addition, the utility model is mainly used to protect mechanical devices, so the utility model will not explain the control method and circuit connection in detail. At the same time, the parts not described in detail in the utility model are all common knowledge to technicians in this field.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0034] The working principle of the above embodiment is:

[0035] (1) When the batch drying device is needed, the installation door is opened, and the three drying chambers 8 are pulled out, and the PCB boards to be dried are placed on the upper surfaces of the three drying chambers 8. Then, the installation door is closed, and the hot air blower 402 is started to draw the air in the three boxes 1 into the interior of the installation box 401, and then the air is heated. Then, the heated air passes through the multiple drying plates 403 for drying, and enters the three boxes 1 through the left connecting pipe 5, and is blown to the outside of the PCB boards to be dried through the multiple air ducts 203. The multiple drying plates 403 can absorb moisture in the air to prevent the PCB boards from getting damp.

[0036] (2) At the same time, by starting the motor 201, the multiple worms 210 drive the multiple worm wheels 209 to rotate, so that the multiple diamond blocks 208 start to rotate, and the three movable plates 204 start to move horizontally. The two adjacent limit plates 206 are used to drive the multiple air cylinders 203 to swing, and the air outlet direction of the multiple air cylinders 203 can be adjusted to achieve the purpose of improving the drying efficiency.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0038] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A batch drying device, comprising three boxes (1), characterized in that: An adjusting mechanism (2) is provided on the front of the lower box (1); four supporting feet (6) are fixed on the bottom of the three boxes (1); the bottom ends of the four supporting feet (6) are fixed with a same bottom plate (3); a drying mechanism (4) is provided above the bottom plate (3); the left and right ends of the three boxes (1) are respectively connected with connecting pipes (5); the front of the three boxes (1) are fixedly connected with a pressure regulating pipe (7); and the left and right side walls of the inner cavity of the three boxes (1) are slidably connected with drying bins (8); The regulating mechanism (2) comprises a motor (201) fixed to the front face of the lower box body (1); the inner top walls of the three boxes (1) are all fixed with hollow plates (202); the lower surfaces of the three hollow plates (202) are all hinged with a plurality of air cylinders (203) via hinge shafts; the back walls of the inner cavities of the three boxes (1) are all horizontally slidably connected with movable plates (204); the front faces of the three movable plates (204) are all rotatably connected with disks (205) via bearings; the front faces of the plurality of disks (205) are Two limit plates (206) are fixed to each of the three boxes (1); movable rods (207) are rotatably connected between the front and rear side walls of the inner cavity of the three boxes (1) via bearings; diamond blocks (208) are fixed to the outer sides of the three movable rods (207); the front ends of the three movable rods (207) respectively penetrate the front walls of the inner cavities of the three boxes (1) and respectively extend to the front sides of the three boxes (1) and are respectively fixed with three worm wheels (209); and the right sides of the three worm wheels (209) are meshed with worms (210); The drying mechanism (4) comprises an installation box (401) fixed on the upper surface of the bottom plate (3); a hot air blower (402) is fixed to the inner bottom wall of the installation box (401); a plurality of drying plates (403) are fixed between the top wall and the bottom wall of the inner cavity of the installation box (401) by bolts; and three fixed pipes (404) are fixedly connected to the connection point between the left connecting pipe (5) and the three box bodies (1).

2. A batch drying device according to claim 1, characterized in that: The plurality of wind tubes (203) are respectively connected to the three hollow plates (202) via hoses, and two adjacent limit plates (206) are respectively located on the left and right sides of the wind tube (203).

3. A batch drying device according to claim 1, characterized in that: A connecting rod is fixed between two adjacent worm gears (210), and the lower worm gear (210) is fixed on the outside of the output shaft of the motor (201).

4. A batch drying device according to claim 1, characterized in that: The three diamond-shaped blocks (208) are movably fitted on the right sides of the three movable plates (204), and the back sides of the three boxes (1) are all equipped with installation doors.

5. A batch drying device according to claim 1, characterized in that: The three fixed pipes (404) are respectively connected to the left sides of the three hollow plates (202), and the left sides of the three drying plates (403) are each provided with a plurality of ventilation holes extending to the right sides thereof.

6. A batch drying device according to claim 1, characterized in that: The two connecting pipes (5) are respectively connected to the left and right sides of the installation box (401), and the two connecting pipes (5) are respectively connected to the left and right sides of the three boxes (1) and have air valves fixed inside.

7. A batch drying device according to claim 1, characterized in that: The three drying bins (8) are all in the shape of a rectangular body with a missing upper surface and a plurality of ventilation holes opened on the outer side, and slideways slidably connected to the drying bins (8) are fixed to the left and right side walls of the inner cavity of the three boxes (1).

Images