PCB (Printed Circuit Board) straightening device

Abstract

The utility model discloses a PCB (Printed Circuit Board) straightening device, which comprises a case provided with a cavity; the pressure assembly is arranged on the machine case and located on the upper portion of the cavity; the straightening assembly is arranged below the pressure assembly and comprises an upper pressing plate and a lower pressing plate, the upper pressing plate is arranged above the lower pressing plate in a lifting mode, the upper pressing plate is connected with the pressure assembly, and the pressure assembly drives the upper pressing plate to be close to the lower pressing plate, so that the upper pressing plate and the lower pressing plate are matched to apply pressure to the PCB; the hot air assembly comprises a hot air blower and a hot air pipe, the hot air pipe is connected with the hot air blower, and an air outlet of the hot air pipe communicates with the cavity; the cold air assembly comprises an air cooler and a cold air pipe, the cold air pipe is connected with the air cooler, and an air outlet of the cold air pipe is communicated with the cavity. According to the PCB straightening device provided by the embodiment of the invention, the PCB can be cooled under the condition that the PCB is pressed, so that the PCB is shaped, the phenomenon that the PCB is bent again in the cooling process in the related technology is avoided, the effect of straightening the bent PCB is enhanced, and the product quality is improved.

Description

Technical Field

[0001] This application relates to the field of PCB board manufacturing technology, and in particular to a PCB board straightening device. Background Technology

[0002] After being pressed into semi-finished products, PCB boards undergo many processes, such as drilling, electroplating, outer layer circuitry, and solder mask baking. Due to the mechanical forces during the manufacturing process, the flatness of the PCB board deteriorates, especially for PCB boards with a thickness of less than 0.6mm, where the impact is more pronounced. Generally, in order to meet the customer's requirements for board warping specifications, the PCB board is straightened during the visual inspection process.

[0003] Currently, the straightening of PCB boards is generally achieved through hot pressing, followed by natural cooling or cooling after hot pressing. However, during the cooling process, the residual heat from hot pressing may cause the PCB board to bend again, resulting in poor straightening performance and affecting product quality. Utility Model Content

[0004] This application aims to at least solve one of the technical problems existing in the prior art. To this end, this application proposes a PCB board straightening device, which can prevent the PCB board from bending again during the cooling process in related technologies, enhance the effect of board bending straightening treatment, and improve product quality.

[0005] The PCB board straightening device according to an embodiment of this application includes: a chassis with a chamber; a pressure assembly disposed in the chassis and located above the chamber; a straightening assembly disposed below the pressure assembly, the straightening assembly including an upper pressure plate and a lower pressure plate, the upper pressure plate being raised and lowered above the lower pressure plate, the upper pressure plate being connected to the pressure assembly, the pressure assembly driving the upper pressure plate to approach the lower pressure plate, so that the upper pressure plate and the lower pressure plate cooperate to apply pressure to the PCB board; a hot air assembly including a hot air blower and a hot air duct, the hot air duct being connected to the hot air blower, and the outlet of the hot air duct communicating with the chamber; and a cold air assembly including a cold air blower and a cold air duct, the cold air duct being connected to the cold air blower, and the outlet of the cold air duct communicating with the chamber.

[0006] The PCB straightening device according to the embodiments of this application has at least the following beneficial effects: During operation, the PCB board is placed on the lower pressure plate, and then the upper pressure plate is driven to approach the lower pressure plate by the pressure assembly, so that the upper and lower pressure plates cooperate to apply pressure to the PCB board; then, the hot air blower sends hot air from the hot air pipe into the chamber, so that the PCB board is heated under pressure, thereby achieving the straightening treatment of the PCB board by hot pressing; subsequently, the cold air blower sends cold air from the cold air pipe into the chamber, so that the PCB board is cooled while still under pressure, thereby achieving the shaping of the PCB board by cold pressing; finally, the pressure assembly drives the upper pressure plate away from the lower pressure plate, so that the upper pressure plate releases the PCB board and removes the PCB board from the chassis. The PCB straightening device according to the embodiments of this application can cool the PCB board under pressure to achieve the shaping of the PCB board, avoid the PCB board bending phenomenon during the cooling process in related technologies, enhance the effect of the straightening treatment, and improve product quality.

[0007] According to the PCB board straightening device described in the embodiments of this application, the pressure component includes a driving member and a connecting arm. The driving member is disposed in the chassis, the connecting arm is connected to the driving member, the upper pressure plate is provided with a hinge seat, the connecting arm is hinged to the hinge seat, and the driving member drives the connecting arm to move, so that the upper pressure plate performs lifting and lowering movements.

[0008] According to the PCB board straightening device described in the embodiments of this application, the driving component is configured as a cylinder, the middle part of the connecting arm is hinged to the chassis, one end of the connecting arm is connected to the telescopic end of the cylinder, and the other end of the connecting arm is connected to the hinge seat through a connecting rod.

[0009] According to the PCB board straightening device described in the embodiments of this application, the upper pressure plate is provided with a guide hole, the chamber is provided with a guide post, and the guide hole is slidably connected to the guide post.

[0010] The PCB board straightening device according to the embodiments of this application further includes a control component, which includes a microcontroller and is connected to the pressure component, the hot air component, and the cold air component respectively.

[0011] According to the PCB board straightening device described in the embodiments of this application, the chassis is provided with an operation panel, and the operation panel is connected to the microcontroller.

[0012] According to the PCB board straightening device described in the embodiments of this application, the chassis is provided with an over-temperature preventer, which is connected to the hot air assembly and the microcontroller respectively.

[0013] According to the PCB board straightening device described in the embodiments of this application, the chassis is equipped with a buzzer, which is connected to the pressure component and the microcontroller respectively.

[0014] According to the PCB board straightening device described in the embodiments of this application, the front and rear ends of the chassis are provided with sealing doors, one end of the sealing door is hinged to the chassis, and the other end of the sealing door is fastened to the chassis.

[0015] According to the PCB board straightening device described in the embodiments of this application, the sealing door is rotatably provided with a locking rod, the two ends of the locking rod are provided with locking blocks, the chassis is provided with a latch, and the locking blocks are connected to the latches.

[0016] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the PCB board straightening device according to an embodiment of this application;

[0019] Figure 2 This is a schematic diagram of the internal structure of the PCB board straightening device according to an embodiment of this application.

[0020] Explanation of reference numerals in the attached figures:

[0021] Chassis 100; Guide column 110; Operation panel 120; Sealing door 130; Locking rod 140; Locking block 150; Locking buckle 160; Drive component 210; Connecting arm 220; Linking rod 230; Upper pressure plate 310; Lower pressure plate 320; Hinge seat 330; Hot air blower 410; Hot air duct 420; Cold air blower 510; Cold air duct 520; Microcontroller 610; Over-temperature preventer 620; Buzzer 630. Detailed Implementation

[0022] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0023] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0024] In the description of this application, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0025] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation, connection, and linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0026] Reference Figure 1 and Figure 2 This application provides a PCB board straightening device, including: a chassis 100 with a chamber; a pressure assembly disposed in the chassis 100 and located above the chamber; a straightening assembly disposed below the pressure assembly, the straightening assembly including an upper pressure plate 310 and a lower pressure plate 320, the upper pressure plate 310 being raised and lowered above the lower pressure plate 320, the upper pressure plate 310 being connected to the pressure assembly, the pressure assembly driving the upper pressure plate 310 to approach the lower pressure plate 320, so that the upper pressure plate 310 and the lower pressure plate 320 cooperate to apply pressure to the PCB board; a hot air assembly including a hot air blower 410 and a hot air pipe 420, the hot air pipe 420 being connected to the hot air blower 410, the air outlet of the hot air pipe 420 being connected to the chamber; and a cold air assembly including a cold air blower 510 and a cold air pipe 520, the cold air pipe 520 being connected to the cold air blower 510, the air outlet of the cold air pipe 520 being connected to the chamber.

[0027] During operation, the PCB board is placed on the lower pressure plate 320, and then the pressure assembly drives the upper pressure plate 310 to approach the lower pressure plate 320, so that the upper pressure plate 310 and the lower pressure plate 320 cooperate to apply pressure to the PCB board. Then, the hot air blower 410 sends hot air from the hot air pipe 420 into the chamber, so that the PCB board is heated under pressure, thereby achieving the straightening and bending treatment of the PCB board by hot pressing. Subsequently, the cold air blower 510 sends cold air from the cold air pipe 520 into the chamber, so that the PCB board is cooled while still under pressure, thereby achieving the shaping of the PCB board by cold pressing. Finally, the pressure assembly drives the upper pressure plate 310 away from the lower pressure plate 320, so that the upper pressure plate 310 releases the PCB board and removes the PCB board from the chassis 100. The PCB board straightening device of this application embodiment can cool the PCB board under pressure to achieve PCB board shaping, avoid the PCB board bending phenomenon during the cooling process in related technologies, enhance the effect of board bending straightening treatment, and improve product quality.

[0028] The pressure assembly includes a drive component 210 and a connecting arm 220. The drive component 210 is disposed in the chassis 100, and the connecting arm 220 is connected to the drive component 210. The upper pressure plate 310 is provided with a hinge seat 330, and the connecting arm 220 is hinged to the hinge seat 330. The drive component 210 drives the connecting arm 220 to move, causing the upper pressure plate 310 to move up and down. The drive component 210 drives the connecting arm 220 to move, causing the upper pressure plate 310 to descend and approach the lower pressure plate 320. At this time, the upper pressure plate 310 and the lower pressure plate 320 cooperate to apply pressure to the PCB board to achieve the straightening and debending treatment of the PCB board. The drive component 210 drives the connecting arm 220 to move, causing the upper pressure plate 310 to rise and move away from the lower pressure plate 320. At this time, the upper pressure plate 310 releases the PCB board, thereby allowing the PCB board to be removed.

[0029] Reference Figure 1 and Figure 2 In this embodiment, the driving component 210 is configured as a cylinder, and the middle part of the connecting arm 220 is hinged to the chassis 100. One end of the connecting arm 220 is connected to the telescopic end of the cylinder, and the other end of the connecting arm 220 is connected to the hinge seat 330 via a connecting rod 230. When the cylinder drives one end of the connecting arm 220 to descend, the other end of the connecting arm 220 drives the connecting rod 230 to rise, causing the upper pressure plate 310 to move away from the lower pressure plate 320 to release the PCB board. When the cylinder drives one end of the connecting arm 220 to rise, the other end of the connecting arm 220 drives the upper pressure plate 310 to descend, causing the upper pressure plate 310 to approach the lower pressure plate 320 and cooperate with the lower pressure plate 320 to apply pressure to the PCB board. By adopting the above structure, the stability of the upper pressure plate 310's lifting and lowering can be improved.

[0030] It should be noted that the connecting arm 220 may also be equipped with a slide, and the driving component 210 is connected to the slide. The driving component 210 drives the slide to slide, thereby causing the connecting arm 220 to drive the upper pressure plate 310 to move up and down.

[0031] It should also be noted that the drive component 210 can also be a motor, which drives the connecting arm 220 to rotate, causing the connecting arm 220 to move the upper pressure plate 310 up and down. The configuration of the drive component 210 can be set according to specific circumstances, and this application does not impose any restrictions on it.

[0032] It is conceivable that the upper pressure plate 310 is provided with a guide hole, and the chamber is provided with a guide post 110, with the guide hole and the guide post 110 slidably connected. By providing the guide post 110, the lifting and lowering of the upper pressure plate 310 can be guided, thereby ensuring the smoothness of the lifting and lowering of the upper pressure plate 310.

[0033] Reference Figure 1 and Figure 2 In some embodiments, the PCB board straightening device further includes a control component, which includes a microcontroller 610. The microcontroller 610 is connected to the pressure component, the hot air component, and the cold air component, respectively. Specifically, by driving the pressure component, the hot air component, and the cold air component to move, the microcontroller 610 can achieve automated operation, reduce labor intensity, and improve work efficiency. Furthermore, the chassis 100 is provided with an operation panel 120, which is connected to the microcontroller 610. The operation panel 120 enables the operation of the microcontroller 610, resulting in a simple structure and convenient operation.

[0034] The control method of the microcontroller 610 is only simple trigger control, and the microcontroller 610 can be, but is not limited to, the STM32F103C model. Therefore, the control method of the microcontroller 610 is not within the scope of protection of this application and belongs to the prior art. This application mainly protects the connection relationship between the various components.

[0035] As can be imagined, the chassis 100 is equipped with an over-temperature preventer 620, which is connected to both the hot air assembly and the microcontroller 610. By incorporating the over-temperature preventer 620, when the temperature inside the chamber exceeds the set temperature, the over-temperature preventer 620 will drive the hot air assembly to stop working, thereby preventing overheating and damage to the PCB board, and improving product quality. It is easy to understand that the chassis 100 is equipped with a buzzer 630, which is connected to both the pressure assembly and the microcontroller 610. After the cold pressing of the PCB board is completed, the pressure assembly releases pressure on the PCB board, at which point the buzzer 630 will sound an alarm to remind the operator that the work is finished and the PCB board can be removed from the chassis 100 for the next round of work.

[0036] Reference Figure 1 and Figure 2 In some embodiments, sealing doors 130 are provided at both the front and rear ends of the chassis 100. One end of the sealing door 130 is hinged to the chassis 100, and the other end of the sealing door 130 is fastened to the chassis 100. Specifically, the sealing door 130 is rotatably equipped with a locking rod 140, and locking blocks 150 are provided at both ends of the locking rod 140. The chassis 100 is provided with a latch 160, and the locking blocks 150 and latches 160 are engaged and connected. By adopting the above structure, it is easy to open or close the chassis 100, the structure is simple, and the operation is convenient.

[0037] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0038] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application.

Claims

1. A PCB board straightening device, characterized in that, include: The chassis has a chamber. A pressure assembly is disposed in the chassis and located at the upper part of the chamber; A straightening assembly is disposed below the pressure assembly. The straightening assembly includes an upper pressure plate and a lower pressure plate. The upper pressure plate is raised and lowered above the lower pressure plate. The upper pressure plate is connected to the pressure assembly. The pressure assembly drives the upper pressure plate to approach the lower pressure plate, so that the upper pressure plate and the lower pressure plate cooperate to apply pressure to the PCB board. A hot air assembly includes a hot air blower and a hot air duct, wherein the hot air duct is connected to the hot air blower and the air outlet of the hot air duct is connected to the chamber; The air cooling assembly includes an air cooler and an air cooling duct, wherein the air cooling duct is connected to the air cooler and the air outlet of the air cooling duct is connected to the chamber.

2. The PCB board straightening device according to claim 1, characterized in that, The pressure assembly includes a drive component and a connecting arm. The drive component is disposed in the housing, and the connecting arm is connected to the drive component. The upper pressure plate is provided with a hinge seat, and the connecting arm is hinged to the hinge seat. The drive component drives the connecting arm to move, causing the upper pressure plate to move up and down.

3. The PCB board straightening device according to claim 2, characterized in that, The driving component is configured as a cylinder, the middle part of the connecting arm is hinged to the chassis, one end of the connecting arm is connected to the telescopic end of the cylinder, and the other end of the connecting arm is connected to the hinge seat through a connecting rod.

4. The PCB board straightening device according to claim 3, characterized in that, The upper pressure plate is provided with a guide hole, and the chamber is provided with a guide post. The guide hole and the guide post are slidably connected.

5. The PCB board straightening device according to claim 1, characterized in that, It also includes a control component, which includes a microcontroller connected to the pressure component, the hot air component, and the cold air component.

6. The PCB board straightening device according to claim 5, characterized in that, The chassis is equipped with an operation panel, which is connected to the microcontroller.

7. The PCB board straightening device according to claim 5, characterized in that, The chassis is equipped with an over-temperature preventer, which is connected to the hot air assembly and the microcontroller.

8. The PCB board straightening device according to claim 5, characterized in that, The chassis is equipped with a buzzer, which is connected to the pressure component and the microcontroller.

9. The PCB board straightening device according to claim 1, characterized in that, The chassis is equipped with sealing doors at both the front and rear ends. One end of the sealing door is hinged to the chassis, and the other end of the sealing door is fastened to the chassis.

10. The PCB board straightening device according to claim 9, characterized in that, The sealed door is rotatably equipped with a locking rod, and locking blocks are provided at both ends of the locking rod. The chassis is equipped with a latch, and the locking blocks are connected to the latches.

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