Printed circuit board film coating equipment

Abstract

The invention relates to the field of printed circuit board manufacturing, in particular to printed circuit board film coating equipment. Specifically, the film laminating device comprises a film laminating assembly, the film laminating assembly is arranged on the upper side of a conveying belt and used for laminating a printed circuit board on the conveying belt, the film laminating assembly further comprises a film pressing assembly, the film pressing assembly comprises an air blowing sliding block arranged on an X-axis driving mechanism in a sliding mode, and an air blowing groove is formed in the lower end of the air blowing sliding block; the blowing grooves are perpendicular to the conveying direction of the conveying belt. According to the scheme, the covering film is pressed in a pneumatic mode, so that the equipment can press the covering film on the printed circuit board more softly and uniformly, and compared with a traditional roller pressing mode, the risk that the printed circuit board is damaged is remarkably reduced. Not only is the problem of non-uniform pressure or local overlarge pressure solved, but also the quality and the stability of film covering are improved.

Description

Technical Field

[0001] The invention relates to the field of printed circuit board manufacturing, and in particular to a printed circuit board laminating device. Background Art

[0002] With the continuous advancement of modern industrial production technology, laminating technology has become an indispensable part of many industries. The laminating process is mainly used to cover a layer of film on the surface of products or materials to enhance their protection and durability. However, in traditional laminating equipment, especially the part involving roller pressure control, there are some technical difficulties.

[0003] Pressure control of traditional rollers is a key issue. Since roller pressure is not easy to control accurately, it may cause damage to sensitive materials such as printed circuit boards during the lamination process. Especially when laminating printed circuit boards in electronic devices, excessive pressure may crush tiny components on the circuit board or cause circuit breakage, thus affecting the overall performance and stability of the equipment.

[0004] In order to reduce this risk, manufacturers often need to invest a lot of time and resources in quality control and post-repair, which undoubtedly increases production costs and time. Although some equipment has tried to alleviate this problem by improving roller design and material selection, the effect is not always ideal. Summary of the invention

[0005] In order to solve the above problems, the present invention discloses a printed circuit board laminating device.

[0006] In order to achieve the above purpose, the present invention provides the following technical solutions: a printed circuit board laminating device, comprising a laminating assembly, wherein the laminating assembly is arranged on the upper side of a conveyor belt, and is used to coat the printed circuit boards on the conveyor belt, the laminating assembly further comprises a film pressing assembly, and the film pressing assembly comprises an air blowing slider slidably arranged on an X-axis driving mechanism, a blowing groove is provided at the lower end of the air blowing slider, and the air blowing groove is perpendicular to the conveying direction of the conveyor belt.

[0007] In a specific structure, the X-axis driving mechanism includes a mounting block and a pneumatic displacement mechanism. A receiving groove is provided in the middle portion of the mounting block. The air blowing slider is horizontally slidably arranged in the receiving groove. The pneumatic displacement mechanism is transmission-connected to the air blowing slider.

[0008] Among them, the pneumatic displacement mechanism includes a cylindrical cavity opened on both sides of the accommodating groove, a piston is slidably arranged in the cylindrical cavity, the side of the piston is connected to the blowing slider, one end of the cylindrical cavity is the gas inlet end, and is used to be connected to the air pipe, and the inner side of the cylindrical cavity is provided with an avoidance groove along its length direction corresponding to the sliding path of the blowing slider.

[0009] A C-shaped tube is arranged in the cylindrical cavity along its length direction, and the piston is slidably arranged on the C-shaped tube.

[0010] Furthermore, a vent hole is provided at one end of the piston facing the gas inlet end of the cylindrical cavity, and one side of the vent hole is communicated with the blowing groove of the blowing slider.

[0011] Among them, an annular groove is arranged in the air vent corresponding to the air blowing slider, the air blowing slider is a hollow structure, and one side of the annular groove passes through the air blowing slider to connect the air blowing groove.

[0012] Furthermore, a spring acts on one end of the piston, and the spring is located in the cylindrical cavity and sleeved on the C-shaped tube.

[0013] In a possible implementation, both ends of the cylindrical cavity are configured as gas inlet ends, and are used to be connected to a gas pipe during operation.

[0014] In the above scheme, two air blowing grooves are provided, one of the two air blowing grooves is provided downward, and the other is provided obliquely downward.

[0015] The solution in the embodiment of the present invention uses pneumatic method to press the film, so that the device can press the film on the printed circuit board more gently and evenly, which significantly reduces the risk of damage to the printed circuit board compared to the traditional roller pressing method. It not only solves the problem of uneven pressure or local excessive pressure, but also improves the quality and stability of the film. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a printed circuit board laminating device in an embodiment of the present application; Figure 2 This is a schematic diagram of the overall structure of the film pressing assembly in the embodiment of the present application; Figure 3 This is a schematic diagram of the connection between the piston and the blowing slider in the embodiment of the present application; Figure 4 This is a schematic diagram of the internal structure of the piston and the blowing slider in the embodiment of the present application; Figure 5 This is a schematic diagram of the structure of the film pressing assembly from another angle in an embodiment of the present application. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings.

[0018] The terms used in the following embodiments are only for the purpose of describing specific embodiments and are not intended to be limiting of the present invention. As used in the specification of the present invention and the appended claims, the singular expressions "a", "an", "above", "the" and "this" are intended to also include expressions such as "one or more", unless the context clearly indicates otherwise.

[0019] References to "one embodiment" or "some embodiments" etc. described in this specification mean that a particular feature, structure or characteristic described in conjunction with the embodiment is included in one or more embodiments of the present invention. Thus, the phrases "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. appearing in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0020] Example 1: Figure 1-5 As shown, a printed circuit board laminating device includes a laminating component 100, wherein the laminating component 100 is arranged on the upper side of a conveyor belt 200, and is used for laminating printed circuit boards on the conveyor belt 200, and the laminating component 100 further includes a film pressing component, and the film pressing component includes a blowing slider 300 slidably arranged on an X-axis driving mechanism, and a blowing groove 301 is opened at the lower end of the blowing slider 300, and the blowing groove 301 is perpendicular to the conveying direction of the conveyor belt 200.

[0021] See also Figure 1 Specifically, the conveyor belt 200 is used to convey the printed circuit board to the bottom of the film coating assembly 100 for the film coating operation of the film coating assembly 100. The air blowing slider 300 is used to communicate with the high-pressure gas and blow it out from the air blowing slot 301. The air blowing slider 300 is driven by the X-axis driving mechanism to slide along the length direction of the printed circuit board, so as to further press the film covering the printed circuit board onto the printed circuit board. Compared with the transmission roller pressing method, the pneumatic pressing method is softer and more uniform, reducing the risk of damaging the printed circuit board. It avoids the problem of uneven pressure or local excessive pressure caused by traditional roller pressing. In a specific structure, the X-axis drive mechanism includes a mounting block 400 and a pneumatic displacement mechanism. A receiving groove 401 is provided in the middle of the mounting block 400. The air blowing slider 300 is horizontally slidably arranged in the receiving groove 401. The pneumatic displacement mechanism is transmission-connected to the air blowing slider 300. The X-axis drive mechanism mainly consists of two parts: the mounting block 400 and the pneumatic displacement mechanism.

[0022] The mounting block 400 is a solid support structure for mounting and supporting the air blowing slider 300 and other related components. A receiving groove 401 is provided in the middle portion of the mounting block 400. The size and shape of the receiving groove 401 are designed to accommodate the air blowing slider 300 and allow it to slide freely in the horizontal direction. In a possible implementation, the pneumatic displacement mechanism uses air pressure as a power source to generate linear displacement through a cylinder, thereby driving the air blowing slider 300 to slide in the receiving groove 401 along the X-axis direction.

[0023] Among them, the pneumatic displacement mechanism includes a cylindrical cavity 402 opened on both sides of the accommodating groove 401, a piston 403 is slidably arranged in the cylindrical cavity 402, the side of the piston 403 is connected to the blowing slider 300, one end of the cylindrical cavity 402 is a gas inlet end, and is used to be connected to the air pipe, and the inner side of the cylindrical cavity 402 is provided with an avoidance groove 421 along its length direction corresponding to the sliding path of the blowing slider 300.

[0024] The cylindrical cavity 402 is a columnar structure, and the piston 403 can slide freely in the cavity. The side of the piston 403 is connected to the blowing slider 300, so that when the piston 403 moves in the cylindrical cavity 402, the blowing slider 300 can be driven to move synchronously in the receiving groove 401.

[0025] One end of the cylindrical cavity 402 is designed as a gas inlet end, which can be connected to an external gas pipe. When high-pressure gas enters the cylindrical cavity 402 from the gas inlet end, it pushes the piston 403 to move toward the other end, thereby achieving the displacement of the blowing slider 300.

[0026] In order to prevent the piston 403 from interfering with the inner wall of the cylindrical cavity 402 during movement, an avoidance groove 421 is provided on the inner side of the cylindrical cavity 402 along its length. The shape and position of the avoidance groove 421 correspond to the moving path of the blowing slider 300. By injecting high-pressure gas into the cylindrical cavity 402, the piston 403 is pushed to slide in the cavity, thereby driving the blowing slider 300 connected thereto to move in the receiving groove 401. The design of the avoidance groove 421 ensures that the piston 403 and the blowing slider 300 will not interfere with the inner wall of the cavity during movement. The use of a pneumatic displacement mechanism has a fast response speed, and the displacement operation of the blowing slider 300 can be completed in a short time, thereby improving production efficiency.

[0027] In a possible implementation, a C-shaped tube 404 is disposed in the cylindrical cavity 402 along its length direction, and the piston 403 is slidably disposed on the C-shaped tube 404 .

[0028] One end of the piston 403 is provided with a vent hole 431 facing the gas inlet end of the cylindrical cavity 402, and one side of the vent hole 431 is connected to the blowing groove 301 of the blowing slider 300. The C-shaped tube 404 provides a stable sliding track for the piston 403, ensuring its stability and accuracy during the sliding process. At the same time, since one side of the C-shaped tube 404 has an opening, a hollow structure is formed inside it, and a cavity is formed with the inner side of the vent hole 431, which reduces the occupation of the volume of the vent hole 431.

[0029] Specifically, an annular groove 432 is provided in the vent hole 431 at a position corresponding to the air blowing slider 300. The air blowing slider 300 is a hollow structure. One side of the annular groove 432 penetrates the air blowing slider 300 to connect the air blowing groove 301. An annular groove 432 is provided inside the vent hole 431 at a position corresponding to the air blowing slider 300. The annular groove 432 forms a circle around the vent hole 431, which increases the area for gas circulation and helps to distribute the gas more evenly.

[0030] During operation, high-pressure gas is introduced into the annular groove 432 inside the piston 403 through the vent hole 431, and then enters the blowing groove 301 of the blowing slider 300 through the annular groove 432, so as to achieve uniform and continuous gas blowing, thereby pressing the coating onto the printed circuit board.

[0031] A spring 405 acts on one end of the piston 403, and the spring 405 is located in the cylindrical cavity 402 and sleeved on the C-shaped tube 404. The elastic characteristics of the spring 405 provide a reset force for the piston 403. When the high-pressure gas pushes the piston 403 to move, the spring 405 is compressed and stores energy; when the gas pressure decreases or disappears, the spring 405 releases energy and pushes the piston 403 to reset.

[0032] The solution in this embodiment uses pneumatic pressure to press the film, so that the device can press the film onto the printed circuit board more gently and evenly, significantly reducing the risk of damage to the printed circuit board compared to the traditional roller pressing method. This design not only solves the problem of uneven pressure or excessive pressure in some areas, but also improves the quality and stability of the film.

[0033] Secondly, the X-axis drive mechanism and pneumatic displacement mechanism in the equipment realize fast and accurate displacement of the blowing slider through air pressure drive, with fast response speed, which is conducive to improving production efficiency.

[0034] The C-shaped tube structure provides a stable sliding track for the piston, ensuring the stability and accuracy of sliding, while reducing the occupancy of the vent volume and optimizing the gas flow path.

[0035] Embodiment 2: In a possible implementation, both ends of the cylindrical cavity 402 are set as gas inlet ends, and are used to connect to the air pipe during operation. The double-end air intake design makes the device more flexible during use. As needed, air can be taken in from either end or both ends at the same time to achieve rapid and accurate movement of the piston 403.

[0036] In another possible implementation, the two gas inlet ends can be connected to an external air pipe at the same time. By controlling the gas pressure and flow in the air pipe, the amount and speed of the high-pressure gas entering the cylindrical cavity 402 can be accurately adjusted. In addition, in order to ensure the balance and stability of the gas when entering from both ends, a control system can be introduced. The system is used to monitor and adjust the pressure and flow of the gas at both ends to ensure that the piston 403 slides smoothly and accurately in the cylindrical cavity 402.

[0037] In order to prevent the gas pressure in the cylindrical cavity 402 from being too high, a safety valve can be set near each gas inlet end. When the pressure in the cavity exceeds the preset safety value, the safety valve will automatically open to release the excess pressure to ensure the safe operation of the equipment. Embodiment 3: There are two blowing slots 301, one of which is downwardly disposed and the other is inclined downwardly disposed. By disposing two blowing slots in different directions, multi-dimensional airflows can be generated, which can more comprehensively press and fit the film to the printed circuit board when impacting the film. The vertical airflow provides the main pressing force, while the inclined airflow plays a role in assisting the lamination and removing bubbles.

[0038] The technical means disclosed in the scheme of the present invention are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical schemes composed of any combination of the above-mentioned technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications are also regarded as the protection scope of the present invention.

Claims

1. A printed circuit board laminating device, comprising a laminating assembly (100), wherein the laminating assembly (100) is arranged on the upper side of a conveyor belt (200) and is used to laminarize printed circuit boards on the conveyor belt (200), characterized in that: The film coating assembly (100) further comprises a film pressing assembly, wherein the film pressing assembly comprises an air blowing slider (300) slidably arranged on the X-axis driving mechanism, wherein an air blowing groove (301) is provided at the lower end of the air blowing slider (300), and the air blowing groove (301) is perpendicular to the conveying direction of the conveyor belt (200); The X-axis driving mechanism comprises a mounting block (400) and a pneumatic displacement mechanism, a receiving groove (401) is provided in the middle of the mounting block (400), the air blowing slider (300) is slidably arranged in the receiving groove (401) along a horizontal direction, and the pneumatic displacement mechanism is drivingly connected to the air blowing slider (300); The pneumatic displacement mechanism comprises a columnar cavity (402) provided on both sides of the accommodating groove (401), a piston (403) being slidably arranged in the columnar cavity (402), a side portion of the piston (403) being connected to the air blowing slider (300), one end of the columnar cavity (402) being a gas inlet end and being used to be connected to an air pipe, and an avoidance groove (421) being provided on the inner side of the columnar cavity (402) along its length direction corresponding to the sliding path of the air blowing slider (300); A C-shaped tube (404) is arranged in the cylindrical cavity (402) along its length direction, and the piston (403) is slidably arranged on the C-shaped tube (404).

2. A printed circuit board laminating device as claimed in claim 1, characterized in that: An air vent (431) is provided at one end of the piston (403) facing the gas inlet end of the cylindrical cavity (402), and one side of the air vent (431) is connected to the air blowing groove (301) of the air blowing slider (300).

3. A printed circuit board laminating device as claimed in claim 2, characterized in that: An annular groove (432) is provided in the vent hole (431) at a position corresponding to the air blowing slider (300); the air blowing slider (300) is of a hollow structure; one side of the annular groove (432) passes through the air blowing slider (300) to communicate with the air blowing groove (301).

4. A printed circuit board laminating device according to any one of claims 1 to 3, characterized in that: A spring (405) acts on one end of the piston (403), and the spring (405) is located in the cylindrical cavity (402) and sleeved on the C-shaped tube (404).

5. A printed circuit board laminating device as claimed in claim 1, characterized in that: Both ends of the cylindrical cavity (402) are arranged as gas inlet ends, and are used to be connected to the air pipe during operation.

6. A printed circuit board laminating device as claimed in claim 1, characterized in that: Two air blowing grooves (301) are provided, one of the two air blowing grooves (301) is provided downwards, and the other is provided obliquely downwards.

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