Board feeding mechanism of four-station rolling type circuit board hot air leveling machine

Abstract

The invention discloses a board feeding mechanism of a four-station rolling type circuit board hot air leveling machine. A rotary board feeding mechanism comprises a feeding rotating frame of a square structure and a feeding rotating module driving the feeding rotating frame to rotate. The upper end face of the feeding rotating frame is a spare plate station and connected with the feeding end of the whole plate feeding belt. The front end face of the feeding rotating frame is a material taking station. Efficient and automatic feeding of the circuit boards is achieved, the whole board feeding belt can convey the circuit boards to the rotary board feeding mechanism in order, manual intervention is reduced, and the feeding efficiency is improved; a feeding rotating frame and a feeding rotating module in the rotating plate feeding mechanism work cooperatively, and a plate preparing station and a material taking station are arranged, so that the continuous machining effect is achieved. And meanwhile, in the rotating process of the feeding rotating frame, the circuit board can be accurately placed vertically from being placed horizontally, the height of the circuit board is matched with the height required by feeding of a follow-up vertical tin furnace, and unsmooth feeding or uneven tinning caused by the posture problem of the circuit board is avoided. And guarantee is provided for high-efficiency and high-quality production of circuit board surface treatment processing.

Description

Technical Field

[0001] The invention belongs to the technical field of hot air leveling equipment and relates to a plate loading mechanism of a four-station rolling type circuit board hot air leveling machine. Background Art

[0002] In the PCB manufacturing process, the hot air leveling process is a key step in ensuring the solderability and electrical performance of the PCB. The loading process of the PCB from the feeding device to the hot air leveling equipment directly affects production efficiency and product quality.

[0003] Traditional circuit board loading methods rely heavily on manual operations, which is not only inefficient and difficult to meet large-scale production needs, but is also prone to human factors leading to problems such as circuit board placement angle deviation and inaccurate positioning, which in turn affects the uniformity and stability of the subsequent hot air leveling process. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A four-station rolling circuit board hot air leveling machine loading mechanism, comprising: a whole board feeding belt and a rotating loading mechanism;

[0006] One end of the whole board feeding belt is the feeding end; the other end of the whole board feeding belt is the loading end, which is connected to the rotating loading mechanism and can feed the fed circuit boards into the rotating loading mechanism in sequence;

[0007] The rotating loading mechanism includes: a square-structured loading turntable and a loading rotating module that drives the loading turntable to rotate; the upper end surface of the loading turntable is the plate preparation station, which is connected to the loading end of the whole plate feeding belt; and the front end surface of the loading turntable is the material taking station.

[0008] As a further solution of the present invention: a group of power roller conveying devices and retractable clamping plate devices are provided at each end surface position of the loading turret in the rotating loading mechanism;

[0009] Each group of power roller conveying devices is an independent operating mechanism, and the material splicing work in the whole plate feeding belt is realized through the power roller conveying device at the plate preparation station;

[0010] The retractable clamping plate device is located at the edge of the end surface of the loading rotary rack.

[0011] As a further solution of the present invention: the retractable splint device includes: a splint base and a pneumatic lifting seat mounted on the splint base, a pneumatic lifting cylinder, a splint chuck and a pneumatic splint cylinder;

[0012] There are at least two groups of splint chucks, which are respectively installed on both sides of the pneumatic lifting seat; the piston rod of the pneumatic lifting cylinder is connected to the pneumatic lifting seat; the pneumatic splint cylinder and the splint chuck are connected by a linkage connecting rod to realize the opening and closing of the splint chuck.

[0013] As a further solution of the present invention: the clamping chuck is composed of a clamping jaw chuck and a clamping jaw base plate, the clamping jaw chuck is a driving part, and the lower end of the clamping jaw chuck is hingedly matched with the piston rod of the pneumatic clamping cylinder; and serrated clamping teeth are formed on the clamping surfaces of the clamping jaw chuck and the clamping jaw base plate.

[0014] As a further solution of the present invention: the pneumatic lifting seat is provided with a backflow baffle extending upward.

[0015] As a further solution of the present invention, a positioning and centering device is further provided at the upper end of the plate preparation station of the loading turret; the positioning and centering device comprises: a centering lifting module and two sets of centering movable modules and a distance adjustment movable module installed on the centering lifting module;

[0016] The centering movable module is located on both sides of the distance adjusting movable module, and the extension direction of the centering movable module is perpendicular to the feeding direction of the power roller conveyor device;

[0017] The centering movable module is provided with a centering push frame; the distance-adjusting movable module is arranged in a vertical direction with the centering movable module, and the distance-adjusting movable module is provided with a distance-adjusting push frame.

[0018] The beneficial effects of the present invention include: efficient and automated loading of circuit boards, with the entire board feeder belt capable of orderly conveying the circuit boards to the rotating loading mechanism, reducing manual intervention and improving loading efficiency; the loading turret and rotating loading module in the rotating loading mechanism work in tandem, with the board preparation and material removal stations configured to achieve continuous processing. Furthermore, during the rotation of the loading turret, the circuit boards can be precisely converted from a horizontal to a vertical position, highly compatible with the subsequent vertical tin furnace feeding requirements, avoiding poor feeding or uneven hot air leveling due to issues with the circuit board's posture. This ensures efficient, high-quality production of hot air leveling processing for circuit boards. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention.

[0020] Figure 2 It is a structural schematic diagram of the rotating upper plate mechanism in the present invention.

[0021] Figure 3 It is another structural schematic diagram of the rotating upper plate mechanism in the present invention.

[0022] Figure 4 It is a structural schematic diagram of the retractable splint device in the present invention.

[0023] Figure 5 This is another structural diagram of the retractable splint device of the present invention.

[0024] Figure 6 It is a structural schematic diagram of the positioning and centering device in the present invention. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. It should be understood that this application is not limited to the example embodiments disclosed herein. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0026] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 cannot be understood as limiting the present invention.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0028] In the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0029] The present invention provides Figures 1 to 6 In an embodiment of the present invention, a loading mechanism of a four-station rolling circuit board hot air leveling machine includes: a whole board feeding belt 1 and a rotating loading mechanism 3;

[0030] One end of the whole board feeding belt 1 is the feeding end; during processing, the circuit boards are fed in manually from the feeding end, and the other end of the whole board feeding belt 1 is the loading end, which is connected to the rotating loading mechanism 3 and can feed the fed circuit boards into the rotating loading mechanism 3 in sequence;

[0031] The rotating loading mechanism 3 includes: a loading turret 33 with a square structure and a loading rotating module 31 that drives the loading turret 33 to rotate; the upper end face of the loading turret 33 is a board preparation station, which is connected to the loading end of the whole board feeding belt 1. During loading, the circuit board fed from the whole board feeding belt 1 will enter the board preparation station; and the front end face of the loading turret 33 is a material taking station. After the board preparation station completes the material taking, it is driven to rotate by the loading rotating module 31, so that the original board preparation station is rotated to a new material taking station, and the circuit board is transformed from the original horizontal placement state to a vertical placement, so that the subsequent material taking mechanism can perform the feeding work of the vertical tin furnace.

[0032] Furthermore, a set of power roller conveying devices 32 and retractable clamping plate devices 34 are provided at each end position of the loading rotary frame 33 in the rotating loading mechanism 3;

[0033] Each group of power roller conveying devices 32 is an independent operating mechanism. The material receiving work in the whole plate feeding belt 1 is realized through the power roller conveying device 32 at the plate preparation station; while the power roller conveying devices 32 at other stations can be in a shutdown state, reducing the overall production energy consumption;

[0034] The retractable clamping plate device 34 is located at the edge of the end face of the loading rotary frame 33; the rear end face of the loading rotary frame 33 is the clamping station. When working, the retractable clamping plate device 34 of the clamping station is used to clamp the circuit board in the preparation station; so that the circuit board in the preparation station can maintain a vertical working state after entering the loading station.

[0035] Furthermore, the retractable clamping plate device 34 includes: a clamping plate base 341 and a pneumatic lifting seat 344 mounted on the clamping plate base 341, a pneumatic lifting cylinder 347, a clamping plate chuck 343 and a pneumatic clamping plate cylinder 346;

[0036] There are at least two sets of clamping chucks 343, which are installed on both sides of the pneumatic lifting seat 344 (the middle is located to reserve clamping space for the transfer material clamp 23); the piston rod of the pneumatic lifting cylinder 347 is connected to the pneumatic lifting seat 344; the pneumatic clamping cylinder 346 and the clamping chuck 343 are connected by a linkage rod to realize the opening and closing of the clamping chuck 343;

[0037] During operation, the pneumatic lifting seat 344 drives the clamping chuck 343 to rise, so that the clamping opening of the clamping chuck 343 is aligned with the circuit board in the board preparation station; then the power roller conveying device 32 outputs reverse power to drive the circuit board back to the clamping position of the clamping chuck 343; the pneumatic clamping cylinder 346 drives the clamping chuck 343 to close, thereby achieving the clamping work of the circuit board;

[0038] After the material is taken out, the pneumatic lifting cylinder 347 drives the pneumatic lifting seat 344 to retreat to avoid the loading action of the circuit board.

[0039] Furthermore, the clamping chuck 343 is composed of a clamping jaw chuck 347 and a clamping jaw base plate 349. The clamping jaw chuck 347 is a driving part, and the lower end of the clamping jaw chuck 347 is hingedly matched with the piston rod of the pneumatic clamping cylinder 346; and the clamping surfaces of the clamping jaw chuck 347 and the clamping jaw base plate 349 are formed with serrated teeth 348 to prevent the clamp from loosening or falling off.

[0040] Furthermore, the pneumatic lifting seat 344 is provided with an upwardly extending reflux baffle 342; when the power roller conveyor 32 drives the circuit board to reflux, the reflux baffle 342 accurately blocks the end of the circuit board, forming precise positioning, ensuring that the clamping clamp 343 can achieve precise clamping of the circuit board.

[0041] Furthermore, a positioning and centering device 2 is provided at the upper end of the plate preparation station of the loading turret 33. The positioning and centering device 2 includes: a centering lifting module 21 and two sets of centering movable modules 22 and a distance adjustment movable module 24 installed on the centering lifting module 21.

[0042] The centering movable module 22 is located on both sides of the distance adjusting movable module 24, and the extension direction of the centering movable module 22 is perpendicular to the feeding direction of the power roller conveyor 32;

[0043] The centering movable module 22 is provided with a centering push frame 23; the distance adjustment movable module 24 is arranged perpendicular to the centering movable module 22, and the distance adjustment movable module 24 is provided with a distance adjustment push frame 25;

[0044] When the powered roller conveyor 32 delivers the circuit board, the centering lifting module 21 drives the centering push frame 23 and the distance-adjusting push frame 25 to descend, and the distance-adjusting push frame 25 blocks the circuit board. At the same time, the distance-adjusting moving module 24 drives the distance-adjusting push frame 25 to move toward the center as needed to adjust the position in the feeding direction, thereby avoiding it from leaving the board preparation station. Then, the centering moving modules 22 on both sides simultaneously drive the centering push frame 23 to move toward the middle, thereby realizing the positioning and centering of the circuit board.

[0045] It should also be noted that, in this document, relational terms such as first and second, etc., are used only 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 "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0046] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present application. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A four-station rolling circuit board hot air leveling machine board loading mechanism, characterized in that, include: Whole plate feeding belt and rotating plate loading mechanism; One end of the whole board feeding belt is the feeding end; the other end of the whole board feeding belt is the loading end, which is connected to the rotating loading mechanism and can feed the fed circuit boards into the rotating loading mechanism in sequence; The rotating loading mechanism includes: a loading rotating frame with a square structure and a loading rotating module that drives the loading rotating frame to rotate; The upper end surface of the loading turntable is the board preparation station, which is connected to the loading end of the whole board feeding belt; and the front end surface of the loading turntable is the material taking station.

2. The loading mechanism of the four-station rolling hot air leveling machine for circuit boards according to claim 1, characterized in that: A set of power roller conveying devices and retractable clamping plate devices are provided at each end position of the loading turntable in the rotating loading mechanism; Each group of power roller conveying devices is an independent operating mechanism, and the material splicing work in the whole plate feeding belt is realized through the power roller conveying device at the plate preparation station; The retractable clamping plate device is located at the edge of the end surface of the loading rotary rack.

3. The loading mechanism of the four-station rolling hot air leveling machine for circuit boards according to claim 1, characterized in that: The retractable splint device comprises: a splint base and a pneumatic lifting seat mounted on the splint base, a pneumatic lifting cylinder, a splint chuck and a pneumatic splint cylinder; There are at least two groups of splint chucks, which are respectively installed on both sides of the pneumatic lifting seat; the piston rod of the pneumatic lifting cylinder is connected to the pneumatic lifting seat; the pneumatic splint cylinder and the splint chuck are connected by a linkage connecting rod to realize the opening and closing of the splint chuck.

4. The loading mechanism of the four-station rolling hot air leveling machine for circuit boards according to claim 3, characterized in that: The clamping chuck is composed of a clamping jaw chuck and a clamping jaw base plate. The clamping jaw chuck is a driving part. The lower end of the clamping jaw chuck is hingedly matched with the piston rod of the pneumatic clamping cylinder. The clamping surfaces of the clamping jaw chuck and the clamping jaw base plate are formed with serrated clamping teeth.

5. The loading mechanism of the four-station rolling hot air leveling machine for circuit boards according to claim 3, characterized in that: The pneumatic lifting seat is provided with a reflux baffle extending upward.

6. The loading mechanism of the four-station rolling hot air leveling machine for circuit boards according to claim 1, characterized in that: A set of positioning and centering devices is also provided at the upper end of the preparation plate station of the loading turret; the positioning and centering devices include: a centering lifting module and two sets of centering moving modules and a distance adjusting moving module installed on the centering lifting module; The centering movable module is located on both sides of the distance adjusting movable module, and the extension direction of the centering movable module is perpendicular to the feeding direction of the power roller conveyor device; The centering movable module is provided with a centering push frame; the distance-adjusting movable module is arranged in a vertical direction with the centering movable module, and the distance-adjusting movable module is provided with a distance-adjusting push frame.

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