SMT automatic drying device

Abstract

The utility model discloses an SMT automatic drying device which comprises a workbench, a plurality of connecting plates and a drying structure are arranged on the workbench, a conveying structure is connected between the two connecting plates, the conveying structure comprises a driving motor, a connecting shaft and a conveying belt, the driving motor penetrates through the connecting plates to be connected to the connecting shaft, the conveying belt is arranged on the connecting shaft in a sleeved mode, and the drying structure is arranged on the workbench. A plurality of adjusting pieces are arranged on the connecting plate, the SMT circuit board is located between the adjusting pieces on the two sides, and the drying structure is located over the conveying structure. According to the SMT circuit board conveying device, the high-temperature-resistant metal conveying belt is arranged on the connecting shaft in a sleeving mode and matched with the adjusting piece, in the conveying process of an SMT circuit board, the telescopic air cylinder pushes the pushing plate to guide and limit the two sides of the circuit board, the limiting plate guides and limits the top of the circuit board, the circuit board cannot move in the conveying process, and the conveying efficiency of the circuit board is improved. The electrical elements are prevented from being damaged due to non-uniform drying at the bottom of the dryer, so that the drying efficiency and the drying quality are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automatic drying devices, and particularly relates to an SMT automatic drying device. Background Art

[0002] In the production process of SMT (Surface Mount Technology), the drying link of the circuit board is one of the key steps to ensure product quality. However, there is a significant problem in the current drying process: that is, the circuit board is directly placed on the conveyor belt for transmission during drying. This method often causes the circuit board to shift or tilt to varying degrees due to dynamic factors such as vibration, acceleration, or deceleration during the transmission process.

[0003] This offset phenomenon not only affects the drying efficiency, but more critically, it causes uneven heating of each area on the surface of the circuit board. Specifically, when the offset circuit board enters the bottom of the dryer, the originally designed hot air circulation path may not fully cover the surface of the offset part, resulting in insufficient drying of these areas, while other non-offset areas may be damaged due to excessive heating. Over time, uneven drying will not only reduce the electrical performance and reliability of the circuit board, but may also cause quality problems such as short circuits and open circuits, directly affecting the product yield and customer satisfaction. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an SMT automatic drying device to solve the problem that the existing SMT circuit board will be displaced during the drying transmission process, resulting in uneven drying of the SMT circuit board, which is likely to reduce the electrical performance and reliability of the circuit board.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: an SMT automatic drying device, including a workbench, on which several connecting plates and a drying structure are arranged. A transmission structure is connected between the two connecting plates. The transmission structure includes a driving motor, a connecting shaft, and a conveyor belt. The driving motor passes through the connecting plate and is connected to the connecting shaft. The conveyor belt is sleeved on the connecting shaft. Several adjusting parts are arranged on the connecting plate. The SMT circuit board is located between the two adjusting parts. The drying structure is located directly above the transmission structure.

[0006] As a further description of the above technical scheme:

[0007] The drying structure includes a support plate and a dryer. The dryer is connected to the support plate. The air outlet of the dryer is located directly above the conveyor belt.

[0008] As a further description of the above technical scheme:

[0009] A plurality of the adjusting members are arranged and connected to the connecting plate at equal intervals.

[0010] As a further description of the above technical solution:

[0011] The adjusting member includes a mounting plate, a limiting plate and a telescopic cylinder. The limiting plate is slidably connected to the mounting plate. The telescopic cylinder is connected to the bottom of the mounting plate. A pushing plate is arranged on the telescopic cylinder. The limiting plate is located directly above the pushing plate.

[0012] As a further description of the above technical solution:

[0013] A slide rail is arranged on the mounting plate. A plurality of fixing holes are arranged at the side end of the slide rail. A plurality of limiting holes are arranged on the limiting plate. The limiting plate is slidably connected to the slide rail. A pin passes through the limiting hole and is connected in the fixing hole.

[0014] As a further description of the above technical solution:

[0015] Fixing plates are arranged on both sides of the mounting plate. The fixing plates are mounted on the mounting plate.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the present utility model are as follows:

[0017] 1. In the present utility model, by arranging a high-temperature-resistant metal conveyor belt sleeved on the connecting shaft and cooperating with the adjusting member, during the transmission of the SMT circuit board, the telescopic cylinder pushes the pushing plate to guide and limit both sides of the circuit board. The limiting plate can be adjustably connected to the mounting plate through a pin, so that it guides and limits the top of the circuit board. This structure guides and limits the circuit board in all directions, making the circuit board always be transmitted along a specific path to the bottom of the dryer, and there will be no displacement during the transmission process, avoiding uneven drying at the bottom of the dryer and damaging electrical components, thereby improving the drying efficiency and drying quality.

[0018] 2. In the present utility model, through the setting of the adjusting member, it can meet the transmission of SMT circuits of different sizes according to the width and height of different circuit boards, and has strong applicability. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0020] Figure 1It is a perspective view of an SMT automatic drying device.

[0021] Figure 2 It is Figure 1 the enlarged view of part A in

[0022] Figure 3 a sectional view of an SMT automatic drying device.

[0023] Legend description:

[0024] 1 - Workbench; 2 - Connecting plate; 3 - Drying structure; 31 - Support plate; 32 - Dryer; 4 - Conveying structure; 41 - Driving motor; 42 - Connecting shaft; 43 - Conveyor belt; 5 - Adjusting part; 51 - Mounting plate; 52 - Limiting plate; 53 - Telescopic cylinder; 6 - Pushing plate; 7 - Slide rail; 8 - Fixing hole; 9 - Limiting hole; 10 - Fixed plate. Specific implementation mode

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0026] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are a part of the embodiments of the present utility model, rather than all the embodiments. Usually, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents the selected embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0028] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0029] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "inner" is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this utility model is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0030] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", and "connected" 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 directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0031] Please refer to Figures 1-3 , the present utility model provides a technical solution: an SMT automatic drying device, including a workbench 1, a plurality of connecting plates 2 and a drying structure 3 are arranged on the workbench 1, a conveying structure 4 is connected between the two connecting plates 2, the conveying structure 4 includes a driving motor 41, a connecting shaft 42 and a conveyor belt 43, the driving motor 41 passes through the connecting plate 2 and is connected to the connecting shaft 42, the conveyor belt 43 is sleeved on the connecting shaft 42, a plurality of adjusting parts 5 are arranged on the connecting plate 2, the SMT circuit board is located between the two adjusting parts 5, and the drying structure 3 is located directly above the conveying structure 4.

[0032] The drying structure 3 includes a support plate 31 and a dryer 32, the dryer 32 is connected to the support plate 31, and the air outlet of the dryer 32 is located directly above the conveyor belt 43.

[0033] A plurality of the adjusting parts 5 are arranged and connected to the connecting plate 2 at equal intervals. Ensure that the SMT circuit board moves along a specific route.

[0034] The adjusting part 5 includes a mounting plate 51, a limiting plate 52 and a telescopic cylinder 53, the limiting plate 52 is slidably connected to the mounting plate 51, the telescopic cylinder 53 is connected to the bottom of the mounting plate 51, a pushing plate 6 is arranged on the telescopic cylinder 53, and the limiting plate 52 is located directly above the pushing plate 6.

[0035] A slide rail 7 is provided on the mounting plate 51. A number of fixing holes 8 are provided at the side end of the slide rail 7. A number of limiting holes 9 are provided on the limiting plate 52. The limiting plate 52 is slidably connected to the slide rail 7. A bolt passes through the limiting hole 9 and is connected to the fixing hole 8. This facilitates the adjustment of the height of the limiting plate.

[0036] Fixing plates 10 are provided on both sides of the mounting plate 51. The fixing plates 10 are mounted on the mounting plate 51. This facilitates the installation of the adjusting member.

[0037] Working principle: By arranging a high-temperature resistant metal conveyor belt sleeved on the connecting shaft and cooperating with the adjusting member, during the transmission of the SMT circuit board, the telescopic cylinder pushes the push plate to guide and limit both sides of the circuit board. The limiting plate can be adjustably connected to the mounting plate through bolts, so that it guides and limits the top of the circuit board. This structure guides and limits the circuit board in all directions, enabling the circuit board to always be transmitted along a specific path to the bottom of the dryer without displacement during the transmission process, avoiding uneven drying at the bottom of the dryer and damaging electrical components, thereby improving the drying efficiency and drying quality.

[0038] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent replacements or changes, shall be covered by the protection scope of the present invention.

Claims

1. An SMT automatic drying device, characterized in that: It includes a workbench, on which are disposed a plurality of connecting plates and a drying structure, a conveying structure connected between two of the connecting plates, the conveying structure comprising a driving motor, a connecting shaft and a conveyor belt, the driving motor passes through the connecting plates and is connected to the connecting shaft, the conveyor belt is sleeved on the connecting shaft, a plurality of adjusting parts are disposed on the connecting plates, the SMT circuit board is located between the adjusting parts on both sides, and the drying structure is located directly above the conveying structure.

2. The SMT automatic drying device according to claim 1, characterized in that: The drying structure comprises a support plate and a dryer, wherein the dryer is connected to the support plate, and an air outlet of the dryer is located directly above the conveyor belt.

3. The SMT automatic drying device according to claim 1, characterized in that: A plurality of adjusting members are arranged at equal distances and connected to the connecting plate.

4. The SMT automatic drying device according to claim 3, characterized in that: The adjusting member comprises a mounting plate, a limiting plate and a telescopic cylinder, wherein the limiting plate is slidably connected to the mounting plate, the telescopic cylinder is connected to the bottom of the mounting plate, a pushing plate is arranged on the telescopic cylinder, and the limiting plate is located directly above the pushing plate.

5. The SMT automatic drying device according to claim 4, characterized in that: The mounting plate is provided with a slide rail, a plurality of fixing holes are provided at the side end of the slide rail, a plurality of limiting holes are provided on the limiting plate, the limiting plate is slidably connected to the slide rail, and the latch passes through the limiting hole and is connected in the fixing hole.

6. The SMT automatic drying device according to claim 4, characterized in that: Fixed plates are arranged on both sides of the mounting plate, and the fixed plates are mounted on the mounting plate.

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