A board pasting machine for circuit board patch production

Abstract

The application relates to the technical field of board feeding machines for circuit board patching, in particular to a board feeding machine for circuit board patching production, which comprises a fixed groove plate, a movable groove plate and an unpatched PCB bare board, the movable groove plate is provided with an adjusting mechanism matched with unpatched PCB bare boards of different widths, the adjusting mechanism comprises a cross-shaped sliding block, a cross-shaped sliding block A and an elastic member. By pushing the connecting plate, the cross-shaped sliding block slides along the top cross-shaped sliding groove, meanwhile, the cross-shaped sliding block A synchronously slides along the bottom cross-shaped sliding groove, the movable groove plate is driven to move away from or close to the fixed groove plate, after being adjusted to the target width, the pull handle is loosened, the spring rebounds to push the insertion end two to be reinserted into the jack plate and the jack hole in the corresponding position, and the adjusting mechanism can match the unpatched PCB bare boards of different widths.

Description

Technical Field

[0001] This application relates to the field of board mounting machines for circuit board surface mount technology, and in particular to a board mounting machine for circuit board surface mount production. Background Technology

[0002] PCB surface mount technology (SMT) refers to the process of directly mounting and soldering electronic components onto the surface of a printed circuit board (PCB). The board loading machine is a key piece of equipment in the SMT production line, used to automatically transport unmounted bare PCBs to the beginning of the production line (such as a solder paste printer).

[0003] Regarding the aforementioned related technologies, the inventors have discovered the following drawbacks: Traditional board loading machines use a fixed-width material frame design, which can only accommodate unmounted PCB bare boards of a single size. When producing products of different specifications, the entire material frame needs to be replaced, thus reducing its versatility.

[0004] Unmounted PCBs rely solely on static friction on both sides of the slot for fixation. During the installation of unmounted PCBs into the frame, the lack of an anti-slip mechanism in the frame results in insufficient fixation and restraint of the inserted PCBs. External impacts during frame movement or installation on the board mounting machine can easily cause the inserted PCBs to slip out of the frame, leading to scratches, collisions, and other issues. This can affect the quality of the PCBs, increase product defect rates, and raise production costs.

[0005] Finally, the recessed groove of the material frame is designed at a right angle, which causes the following problems when the bare PCB board slides out: Sliding friction can easily scratch the PCB surface or pads, affecting product quality. Right-angled edges may cause the bare PCB board to jam due to burrs or deformation.

[0006] Therefore, in response to the above problems, the applicant provides a board mounting machine for circuit board surface mount production. Summary of the Invention

[0007] In order to solve the problems mentioned in the background art, this application provides a board mounting machine for circuit board assembly.

[0008] This application provides a board mounting machine for circuit board assembly, which adopts the following technical solution: A board mounting machine for PCB assembly includes a fixed groove plate, a movable groove plate, and unmounted PCB bare boards. The movable groove plate is provided with an adjustment mechanism to match unmounted PCB bare boards of different widths. The adjustment mechanism includes a cross-shaped slider, a cross-shaped slider A, and a telescopic component. The cross-shaped slider and the cross-shaped slider A slide linearly into a cross-shaped groove used to drive the movable groove plate to adjust its width relative to the fixed groove plate.

[0009] The telescopic component is fitted with a spring, and one end of the telescopic component is inserted into the socket and the socket plate to lock the "+" shaped slider to move horizontally.

[0010] The unmounted PCB bare board is provided with anti-slip mechanism on both sides. The anti-slip mechanism includes a square insert and a sliding rod. The square insert and the sliding rod are located on both sides of the unmounted PCB bare board. The sliding rod is threaded with a screw and abuts against the surface of the crossbar.

[0011] Both the fixed groove plate and the movable groove plate are provided with recessed grooves, and guide wheels are rotatably connected on both sides of the recessed grooves to facilitate the sliding out of unmounted PCB bare boards.

[0012] Optionally, it also includes a frame, on which two cross-shaped grooves are horizontally opened at the top and bottom. The two cross-shaped grooves at the top are slidably connected to cross-shaped sliders, and a connecting plate is fixedly connected between the two cross-shaped sliders. The two cross-shaped grooves at the bottom are slidably connected to cross-shaped slider A. The cross-shaped sliders and cross-shaped slider A are respectively fixedly connected to the top and bottom of the movable groove plate.

[0013] Optionally, it also includes a sleeve, on which a limiting groove is formed, and an insertion end one is sleeved on both ends of the sleeve. A handle is fixedly connected to the outer circumference of the insertion end one and is located in the limiting groove. A limiting ring is fixedly connected to the outer circumference of two-thirds of the insertion end one, and the third-third section of the insertion end one located in the limiting ring is the insertion end two.

[0014] Optionally, a spring is provided between the sleeve and the limiting ring and sleeved on the telescopic component, and the first insertion end, the limiting ring, the second insertion end, and the handle constitute the telescopic component.

[0015] Optionally, the top of the frame is fixedly connected to multiple equally spaced insertion plates on both sides of the "+" shaped slide groove. The top of the "+" shaped slider has a horizontal insertion hole for the second insertion end, and one end of the second insertion end is inserted into the insertion plate.

[0016] Optionally, the cross-shaped slider, the socket, the sleeve, the telescopic component, the spring, the connecting plate, and the cross-shaped slider A constitute a locking component.

[0017] Optionally, a fixed groove plate is fixedly connected to one side of the frame, and a movable groove plate that can move laterally is provided in the opposite direction of the fixed groove plate. The fixed groove plate and the movable groove plate are provided with multiple slots for placing unmounted bare PCB boards at equal intervals from top to bottom. The bottom end of the frame at each slot is provided with a recessed groove for easy insertion. The frame, the fixed groove plate and the movable groove plate constitute a material frame, and the material frame is installed on the board loading machine.

[0018] Optionally, the top of the frame has a square slot through which a square rod is inserted. One end of the square rod is vertically inserted into a groove at the bottom of the frame. The square rod is horizontally fixedly connected to a crossbar. One end of the crossbar is fixedly connected to a limit block. The crossbar is inserted into the top slot of a sliding rod. Extension blocks are fixedly connected to both sides of the bottom of the sliding rod.

[0019] Optionally, the bottom of the frame is provided with an inverted "T"-shaped groove for sliding the end of the sliding rod and the extension block, and the top of the frame is provided with a through groove for sliding the sliding rod.

[0020] In summary, this application includes the following beneficial technical effects: This invention pushes the connecting plate to make the "+" shaped slider slide along the top "+" shaped groove, while the "+" shaped slider A slides synchronously along the bottom "+" shaped groove, causing the moving groove plate to move away from or closer to the fixed groove plate. After adjusting to the target width, the pull handle is released, and the spring rebounds to push the insertion end two to re-insert into the corresponding position of the insertion plate and insertion hole. By adjusting the mechanism, it can match unmounted PCB bare boards of different widths.

[0021] This invention uses a sliding rod that moves along a horizontal bar to push the unmounted PCB board closer to the square insert rod until both sides are in contact. Tightening the screws makes it press against the surface of the horizontal bar, fixing the position of the sliding rod and forming a bidirectional clamping of the unmounted PCB board to prevent it from slipping out. This avoids scratches, collisions, etc. caused by the unmounted PCB board sliding out of the material frame, which would affect the quality of the PCB board.

[0022] This invention replaces sliding friction with rolling contact of guide wheels, reducing the resistance when unmounted PCB bare boards exit the frame. This avoids the right-angle design of the material frame's recessed groove, which can easily scratch the PCB surface or pads due to sliding friction, affecting product quality. The right-angled edges may also cause the PCB bare board to jam due to burrs or deformation. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application; Figure 2 This is a schematic diagram of the movable groove plate structure in an embodiment of this application; Figure 3This is an embodiment of the present application. Figure 2 A magnified schematic diagram of the structure at point A; Figure 4 This is a schematic diagram of the disassembled locking component structure in an embodiment of this application; Figure 5 This is a schematic diagram of the material frame split structure in an embodiment of this application; Figure 6 This is a schematic diagram of the anti-slip mechanism in the embodiments of this application.

[0024] Reference numerals: 1. Material frame; 10. Frame; 100. Cross-shaped groove; 101. Square groove; 102. Inverted T-shaped groove; 11. Fixed groove plate; 12. Moving groove plate; 2. Locking component; 20. Cross-shaped slider; 21. Insertion hole; 22. Sleeve; 220. Limiting groove; 23. Telescopic component; 230. Insertion end one; 231. Limiting ring; 232. Insertion end two; 233. Pull handle; 24. Spring; 25. Connecting plate; 26. Cross-shaped slider A; 3. Insertion plate; 4. Recessed groove; 5. Guide wheel; 6. Unmounted bare PCB board; 70. Square insertion rod; 71. Crossbar; 710. Limiting block; 72. Sliding rod; 720. Extension block; 73. Screw. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0026] This application discloses a board mounting machine for circuit board surface mount production.

[0027] like Figure 1-6 As shown, a board mounting machine for PCB assembly includes a fixed groove plate 11, a movable groove plate 12, and an unmounted PCB bare board 6. The movable groove plate 12 is provided with an adjustment mechanism to match unmounted PCB bare boards 6 of different widths. The adjustment mechanism includes a cross-shaped slider 20, a cross-shaped slider A26, and a telescopic component 23. The cross-shaped slider 20 and the cross-shaped slider A26 slide linearly into a cross-shaped groove 100 used to drive the movable groove plate 12 to adjust its width relative to the fixed groove plate 11. A spring 24 is sleeved on the telescopic member 23, and one end of the telescopic member 23 is inserted into the socket 21 and the socket plate 3 to lock the "+" shaped slider 20 to move laterally.

[0028] The unmounted PCB bare board 6 is provided with anti-slip mechanism on both sides. The anti-slip mechanism includes a square insert 70 and a sliding rod 72. The square insert 70 and the sliding rod 72 are located on both sides of the unmounted PCB bare board 6. The sliding rod 72 is threaded with a screw 73 and abuts against the surface of the crossbar 71.

[0029] Both the fixed groove plate 11 and the movable groove plate 12 are provided with recessed grooves 4, and guide wheels 5 are rotatably connected on both sides of the recessed grooves 4 to facilitate the sliding out of the unmounted bare PCB board 6.

[0030] Please see Figures 2 to 5 It also includes a frame 10, on which two cross-shaped grooves 100 are horizontally opened at the top and bottom. The two cross-shaped grooves 100 at the top are slidably connected to cross-shaped sliders 20. A connecting plate 25 is fixedly connected between the two cross-shaped sliders 20. The two cross-shaped grooves 100 at the bottom are slidably connected to cross-shaped sliders A26. The cross-shaped sliders 20 and A26 are fixedly connected to the top and bottom of the movable groove plate 12, respectively.

[0031] The working principle of the above structure is as follows: when it is necessary to adjust the width of the movable groove plate 12 and the fixed groove plate 11, it is only necessary to first pull the movable groove plate 12 away from the fixed groove plate 11 by connecting the two cross-shaped sliders 20 connected by the connecting plate 25. The cross-shaped slider A26 assists in sliding the movable groove plate 12, thereby realizing the width adjustment of the movable groove plate 12 and the fixed groove plate 11.

[0032] Please see Figure 3 and Figure 4 It also includes a sleeve 22, on which a limiting groove 220 is formed. An insertion end 230 is sleeved on both ends of the sleeve 22. A handle 233 is fixedly connected to the outer circumference of the insertion end 230 and is located in the limiting groove 220. A limiting ring 231 is fixedly connected to two-thirds of the outer circumference of the insertion end 230. The third-third section of the insertion end 230 located in the limiting ring 231 is the insertion end 232.

[0033] Please see Figure 1 and Figure 4 A spring 24 is provided between the sleeve 22 and the limiting ring 231 and is sleeved on the telescopic member 23. The first insertion end 230, the limiting ring 231, the second insertion end 232 and the handle 233 constitute the telescopic member 23. The top of the frame 10 is fixedly connected to multiple equally spaced insertion plate 3 on both sides of the cross-shaped slide groove 100. The top of the cross-shaped slider 20 is horizontally penetrated by an insertion hole 21 for inserting the second insertion end 232. One end of the second insertion end 232 is inserted into the insertion plate 3. The working principle of the above structure is as follows: The frame 10 is marked with corresponding scale values ​​on the socket plate 3 at different positions. When the movable groove plate 12 needs to be adjusted to a specified width, the frame 10 is simply slid to the socket plate 3 position with the specified scale value. The operator first pushes the two handles 233 in the center with both hands. At this time, the second insertion end 232 leaves the original socket plate 3, and the spring 24 is compressed by the telescopic part 23 and the limiting ring 231. After pushing the frame 10 to the specified socket plate 3, the two handles 233 are released. The spring 24 rebounds and drives the second insertion end 232 to re-insert into the socket 21 and the socket plate 3, thereby completing the positioning of the movable groove plate 12.

[0034] Please see Figures 1 to 6 The cross-shaped slider 20, the insertion hole 21, the sleeve 22, the telescopic component 23, the spring 24, the connecting plate 25, and the cross-shaped slider A26 constitute the locking component 2. A fixed groove plate 11 is fixedly connected to one side of the frame 10. A movable groove plate 12 that can move laterally is provided in the opposite direction of the fixed groove plate 11. The fixed groove plate 11 and the movable groove plate 12 have multiple slots for placing unmounted PCB bare boards 6 at equal intervals from top to bottom. The bottom end of the frame 10 at each slot has a recessed groove 4 for easy insertion. The frame 10, the fixed groove plate 11, and the movable groove plate 12 constitute the material frame 1, which is installed on the board loading machine.

[0035] The working principle of the above structure is as follows: The material frame 1 and the installation of the material frame 1 on the board mounting machine are both existing technologies, so the working principle and connection relationship here will not be elaborated. Here, the original fixed structure of the movable groove plate 12 is improved so that it can realize the width adjustment with the fixed groove plate 11, thereby adapting to unmounted bare PCB boards 6 of different widths.

[0036] Please see Figure 5 and Figure 6 The top of the frame 10 has a square groove 101 through which a square rod 70 is inserted. One end of the square rod 70 is vertically inserted into a groove at the bottom of the frame 10. The square rod 70 is horizontally fixedly connected to a crossbar 71. One end of the crossbar 71 is fixedly connected to a limit block 710. The crossbar 71 is inserted into the top groove of a sliding rod 72. Extension blocks 720 are fixedly connected to both sides of the bottom of the sliding rod 72. The bottom of the frame 10 has an inverted "T"-shaped sliding groove 102 for sliding the end of the sliding rod 72 and the extension block 720. The top of the frame 10 has a through groove for sliding the sliding rod 72.

[0037] The working principle of the above structure is as follows: First, the square insert 70 on the crossbar 71 is inserted into the square slot 101 and goes deep into the groove. At this time, the sliding rod 72 is located on one side of the limiting block 710. Then, the sliding rod 72 is slid on the crossbar 71 to push the unmounted PCB bare board 6 closer to the square insert 70. When the square insert 70 and the screw 73 are attached to both sides of the unmounted PCB bare board 6, the unmounted PCB bare board 6 is positioned by hand-tightening the screw 73 to press it against the surface of the crossbar 71.

[0038] The implementation principle of a board mounting machine for circuit board surface mount production according to an embodiment of this application is as follows: When replacing unmounted PCB bare boards 6 of different widths, and adjusting the distance between the movable groove plate 12 and the fixed groove plate 11 is required, the adjustment steps are as follows: Unlock positioning: The operator pulls the handle 233, which causes the telescopic component 23 to compress the spring 24, causing the insertion end 232 to exit from the insertion plate 3 and the insertion hole 21, thus releasing the lateral lock of the movable groove plate 12.

[0039] Width adjustment: Push the connecting plate 25 to make the cross-shaped slider 20 slide along the top cross-shaped groove 100, while the cross-shaped slider A26 slides synchronously along the bottom cross-shaped groove 100, causing the moving groove plate 12 to move away from or closer to the fixed groove plate 11.

[0040] Relocking: After adjusting to the target width, release the handle 233. The spring 24 rebounds and pushes the insertion end 232 to re-insert into the corresponding position of the insertion plate 3 and the insertion hole 21, completing the positioning.

[0041] The anti-slip mechanism, through the coordinated action of the square insert 70, the sliding rod 72, and the screw 73, laterally limits the unmounted bare PCB board 6. The specific steps are as follows: Initial positioning: Insert the square insert 70 into the square slot 101 at the top and the groove at the bottom of the frame 10 to fix the position of the crossbar 71.

[0042] Clamping adjustment: The sliding rod 72 moves along the horizontal bar 71, pushing the unmounted bare PCB board 6 toward the square insert 70 until the two sides are in contact.

[0043] Locking and anti-slip: Tighten screw 73 to press it against the surface of crossbar 71, fix the position of sliding bar 72, and form a two-way clamping of the unmounted bare PCB board 6 to prevent it from slipping out.

[0044] The guide wheels 5 are installed on both sides of the recessed groove 4. By rotating, they guide the unmounted bare PCB board 6 to slide smoothly out of the material frame 1. Their specific functions are as follows: Reduce friction: The rolling contact of the guide wheel 5 replaces sliding friction, reducing the resistance when the unmounted bare PCB board 6 exits the frame.

[0045] Guiding correction: If the unmounted bare PCB board 6 tilts slightly due to vibration or installation deviation, the guide wheel 5 can adjust its posture by rolling to ensure smooth sliding out.

[0046] To prevent jamming: The arc surface of the guide wheel 5 can prevent the edge of the unmounted PCB bare board 6 from scratching or getting stuck at the right angle of the recessed groove 4.

[0047] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A board mounting machine for circuit board surface mount production, characterized in that: The system includes a fixed groove plate (11), a movable groove plate (12), and an unmounted PCB bare board (6). The movable groove plate (12) is provided with an adjustment mechanism to match unmounted PCB bare boards (6) of different widths. The adjustment mechanism includes a cross-shaped slider (20), a cross-shaped slider A (26), and a telescopic component (23). The cross-shaped slider (20) and the cross-shaped slider A (26) slide linearly into the cross-shaped groove (100) used to drive the movable groove plate (12) to adjust its width relative to the fixed groove plate (11). A spring (24) is sleeved on the telescopic component (23), and one end of the telescopic component (23) is inserted into the socket (21) and the socket plate (3) to lock the "+" shaped slider (20) to move laterally; The unmounted PCB bare board (6) is provided with anti-slip mechanism on both sides. The anti-slip mechanism includes a square insert (70) and a sliding rod (72). The square insert (70) and the sliding rod (72) are located on both sides of the unmounted PCB bare board (6). The sliding rod (72) is threaded with a screw (73) and abuts against the surface of the crossbar (71). Both the fixed groove plate (11) and the movable groove plate (12) are provided with recessed grooves (4), and the two sides of the recessed grooves (4) are rotatably connected with guide wheels (5) to facilitate the sliding out of the unmounted PCB bare board (6).

2. The board mounting machine for circuit board surface mount production according to claim 1, characterized in that: It also includes a frame (10), on which two cross-shaped grooves (100) are horizontally opened at the top and bottom. The two cross-shaped grooves (100) at the top are slidably connected to cross-shaped sliders (20). A connecting plate (25) is fixedly connected between the two cross-shaped sliders (20). The two cross-shaped grooves (100) at the bottom are slidably connected to cross-shaped sliders A (26). The cross-shaped sliders (20) and A (26) are fixedly connected to the top and bottom of the movable groove plate (12) respectively.

3. The board mounting machine for circuit board surface mount production according to claim 2, characterized in that: It also includes a sleeve (22), on which a limiting groove (220) is provided. An insertion end (230) is sleeved on both ends of the sleeve (22). A handle (233) is fixedly connected to the outer circumference of the insertion end (230) and is located in the limiting groove (220). A limiting ring (231) is fixedly connected to the outer circumference of two-thirds of the insertion end (230). The third-third section of the insertion end (230) located in the limiting ring (231) is the insertion end (232).

4. The board mounting machine for circuit board assembly according to claim 3, characterized in that: A spring (24) is provided between the sleeve (22) and the limiting ring (231) and is sleeved on the telescopic member (23). The first insertion end (230), the limiting ring (231), the second insertion end (232) and the handle (233) constitute the telescopic member (23).

5. The board mounting machine for circuit board surface mount production according to claim 4, characterized in that: The top of the frame (10) is fixedly connected to both sides of the "+" shaped slide groove (100) with multiple equally spaced insertion plate (3). The top of the "+" shaped slider (20) has horizontal insertion holes (21) for inserting the second insertion end (232). One end of the second insertion end (232) is inserted into the insertion plate (3).

6. The board mounting machine for circuit board surface mount production according to claim 5, characterized in that: The cross-shaped slider (20), the socket (21), the sleeve (22), the telescopic component (23), the spring (24), the connecting plate (25), and the cross-shaped slider A (26) constitute the locking component (2).

7. A board mounting machine for circuit board surface mount production according to claim 2, characterized in that: A fixed groove plate (11) is fixedly connected to one side of the frame (10). A movable groove plate (12) that can move laterally is provided in the opposite direction of the fixed groove plate (11). The fixed groove plate (11) and the movable groove plate (12) are provided with multiple slots for placing unmounted bare PCB boards (6) at equal intervals from top to bottom. The bottom of the frame (10) at each slot is provided with a recessed groove (4) for easy insertion. The frame (10), the fixed groove plate (11) and the movable groove plate (12) constitute a material frame (1). The material frame (1) is installed on the board mounting machine.

8. A board mounting machine for circuit board surface mount production according to claim 2, characterized in that: The top of the frame (10) has a square slot (101) through which a square insert rod (70) is inserted. One end of the square insert rod (70) is vertically inserted into a groove at the bottom of the frame (10). The square insert rod (70) is horizontally fixedly connected to a crossbar (71). One end of the crossbar (71) is fixedly connected to a limit block (710). The crossbar (71) is inserted into the top groove of a sliding rod (72). Both sides of the bottom of the sliding rod (72) are fixedly connected to extension blocks (720).

9. A board mounting machine for circuit board surface mount production according to claim 8, characterized in that: The bottom of the frame (10) is provided with an inverted "T"-shaped groove (102) for sliding the end of the sliding rod (72) and the extension block (720), and the top of the frame (10) is provided with a through groove for sliding the sliding rod (72).

Images