A circuit board over level folding device

Abstract

The application provides a circuit board horizontal line passing laminating device, relates to the technical field of printed circuit boards, and comprises a rectangular platform, which is provided with conveying platforms around the four sides, the conveying platforms comprising three incoming material conveying tables and one feeding conveying table; an adjusting assembly, which comprises a rotating drum rotatably arranged on the rectangular platform, a penetrating rod movably penetrating the rotating drum coaxially, and a mounting plate coaxially connected to the top end of the penetrating rod; three suction and release assemblies, each of which comprises a mounting frame, a suction block mounted below the mounting frame, an air inlet pipe in communication with the suction block, all interfaces connected to the same air suction pump, a valve rotatably mounted on the air inlet pipe, the valve connected to a dialing assembly, and a locking piece; and a laminating table, which is provided with an unlocking piece. The application can realize automatic laminating of production boards, and can realize simultaneous suction and different release of the multiple suction and release assemblies through only one air suction pump, so that the system structure is simplified and the cost loss is reduced.

Description

Technical Field

[0001] This application relates to the field of printed circuit board technology, and in particular to a stacking device for circuit boards crossing horizontal lines. Background Technology

[0002] In current printed circuit boards (PCBs), as semiconductor devices evolve towards higher integration and miniaturization, traditional soldering techniques struggle to meet the precise interconnection requirements between chips and substrates. Gold wire bonding, with its advantages of high precision, high reliability, and low resistivity, has gradually become the mainstream solution. However, for products requiring gold wire bonding, especially those designed for solder mask-free or full-board gold plating, the exposed gold surface easily causes scratches when the product passes through horizontal lines and contacts the rollers. These scratches not only affect the appearance but also directly reduce soldering reliability. Existing equipment cannot directly avoid this, so this problem is solved by adding tooling, including tools such as… Figure 9 The substrate shown in (a) is manufactured by passing the soft gold plating step as follows: Figure 9 The work board with the “substrate + production board + substrate” structure shown in (c) passes through the horizontal line in subsequent steps.

[0003] Existing board stacking processes involve multiple layers, requiring sequential steps such as inputting and stacking the substrate and production board, and outputting the stacked boards. During this process, the loading and unloading of the substrate and production board are typically achieved using suction cup devices, which can pick up the substrate and production board separately or simultaneously. However, due to the sequential limitations of the stacking process, the release action can only be performed one board at a time, necessitating the coordinated operation of multiple air pumps, resulting in a complex system structure and increased overall cost. Summary of the Invention

[0004] To address the shortcomings of the prior art, this application provides a board stacking device for circuit boards crossing horizontal lines, which automatically stacks the production boards into working boards after the soft gold plating step, and achieves simultaneous adsorption and non-simultaneous release based on only one air pump, simplifying the structure.

[0005] To achieve the above objectives, the present invention employs the following techniques:

[0006] A board stacking device for circuit boards crossing horizontal lines includes:

[0007] A rectangular platform is provided around its four sides with conveyor platforms. The conveyor platforms include three incoming conveyor platforms and one feeding conveyor platform. Each of the three incoming conveyor platforms is equipped with a push block. One of the incoming conveyor platforms is used to convey the production board, and the two incoming conveyor platforms on its two sides are used to convey the substrate. One of the substrates is in an inverted state.

[0008] The stacking table is formed on one side of the rectangular platform and is connected to the feeding conveyor table.

[0009] The adjustment assembly includes a rotating drum mounted on a rectangular platform, a through rod that moves coaxially inside the rotating drum, and a mounting plate that is coaxially connected to the top of the through rod;

[0010] There are three suction and discharge assemblies, which are vertically movable and spaced around the circumference below the mounting plate. The middle one is spaced at a 90° angle from the other two. They are used to simultaneously pick up substrates and production boards from the three material conveyors and stack them on the stacking table.

[0011] The suction and discharge assembly includes a mounting frame with a suction block mounted below it. The suction block is connected to an air inlet pipe. All air inlet pipe interfaces of the suction and discharge assemblies are connected to the same air pump. A valve is installed on the air inlet pipe. The valve is connected to one end of a rotating plate. The other end of the rotating plate is connected to a toggle assembly mounted on the mounting frame and moving vertically. The toggle assembly is used to drive the rotating plate to rotate to open / close the valve. When the suction and discharge assembly is above the material conveying platform and moves downward, a push block acts on the toggle assembly to move it from a first position to a second position. When the toggle assembly is in the second position, the rotating plate rotates to fully open the valve. The mounting frame is equipped with a locking device to lock the toggle assembly in the second position.

[0012] The stacking platform is equipped with an unlocking component, which is used to act on the toggle component to release the locking component when the suction and discharge component is on the stacking platform and moves down. When the lock is released, the toggle component moves down from the second position to the first position. When the toggle component is in the first position, the turntable rotates to fully close the valve.

[0013] The beneficial effects of this invention are as follows:

[0014] All adsorption blocks are connected to the same vacuum pump. The valves are opened simultaneously by the cooperation of the sliders on the three adsorption components and the push blocks on their corresponding material conveying platforms, which saves time. During this process, the adsorption stability of the adsorption and release components is improved by the setting of locking components. Then, the sliders on the three adsorption components are connected to the stacking platform in sequence. The sliders are unlocked by the setting of unlocking components, the sliders move down, the valves close, and the blocks are released one by one.

[0015] Not only can a single air pump complete the release actions of multiple suction and discharge components at different times, simplifying the system structure and reducing cost losses, but it also combines the valve opening and closing timing with the cooperation between the slider and the corresponding push block, and the cooperation between the slider and the unlocking component. This allows the valve to have the function of opening and closing at the designated time, while reducing the overall cost. Attached Figure Description

[0016] The accompanying drawings described herein are merely illustrative of selected embodiments, not all possible implementations, and are not intended to limit the scope of the invention.

[0017] Figure 1 This is a perspective view of the overall structure of the stacking device in the embodiments of this application.

[0018] Figure 2 This is a partial three-dimensional view of the stacking plate device in the embodiments of this application.

[0019] Figure 3 This is a three-dimensional structural view of the adjustment component and the suction and discharge component in the embodiments of this application.

[0020] Figure 4 This is a schematic diagram of the internal structure of the suction and discharge component in the embodiments of this application.

[0021] Figure 5 This is a schematic diagram of the bottom structure of the adjustment component and the suction and release component in the embodiments of this application.

[0022] Figure 6 This is a cross-sectional schematic diagram of the stacking device in the second working stage in the embodiments of this application.

[0023] Figure 7 This is a cross-sectional schematic diagram of the stacking device in the third working stage in the embodiments of this application.

[0024] Figure 8 yes Figure 6 Enlarged view of point A in the middle.

[0025] Figure 9 These are schematic diagrams of the substrate and production board in the embodiments of this application; wherein, (a) is a schematic diagram of the substrate, (b) is a schematic diagram of the production board placed on the substrate, and (c) is a schematic diagram of the working board.

[0026] Reference numerals: Rectangular platform-1, Conveying platform-2, Incoming material conveyor-21, Feeding conveyor-22, Adjusting component-3, Rotary drum-31, Through rod-32, First blocking part-321, Second blocking part-322, Third spring-323, Mounting plate-33, Vertical cylinder-34, First clearance groove-341, Second clearance groove-342, Suction and release component-4, Mounting bracket-41, Second guide rod-411, Pressure plate-412, Second spring-413, Fourth spring-414, Suction block-42, Air inlet pipe-43, Rotating plate-44, Slide groove-441, Slider-45, Arc groove -451, Arc-shaped block -452, Fifth spring -453, First guide rod -46, First spring -47, Locking component -48, Extension plate -49, Stacking platform -5, U-shaped plate -51, Unlocking component -52, Rectangular strip -521, Arc-shaped locking strip -522, Arc-shaped locking groove -523, Guide rail -53, Mating platform -54, Groove -541, Sixth spring -542, Push block -6, Pushing assembly -7, Vertical groove -71, Connecting rod -72, Connecting column -721, Mating column -73, Seventh spring -74, Working plate -8, Base plate -81, Production plate -82, Linear mechanism -9. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the implementation methods of the present invention will be described in detail below with reference to the accompanying drawings. However, the embodiments described in this invention are only some embodiments of the present invention, and not all embodiments.

[0028] This application provides a stacking device for circuit boards crossing horizontal lines, such as... Figures 1-8 As shown, it includes: a rectangular platform 1, an adjustment component 3, a suction and release component 4, and a stacking platform 5.

[0029] like Figure 1 and Figure 2 As shown, a rectangular platform 1 is surrounded by conveyor platforms 2. Each conveyor platform 2 includes three incoming conveyor tables 21 and one feeding conveyor table 22. Each of the three incoming conveyor tables 21 is equipped with a pusher block 6. One incoming conveyor table 21 is used to convey a production board 82, while the two incoming conveyor tables 21 on either side are used to convey substrates 81. One substrate 81 is inverted. The substrate 81 includes a rectangular outer frame section. Multiple protrusions extend inward from the inner wall of the outer frame section. The thickness of the protrusions is less than the thickness of the outer frame section, and the cross-sectional area of ​​the inner wall of the outer frame section is greater than the cross-sectional area of ​​the outer wall of the production board 82. When the production board 82 is placed on the substrate 81, as shown... Figure 9 As shown in (b), the feeding output platform 22 is used to output two substrates 81 and a production board 82, i.e., a working board 8, which are stacked in a stacked state. The structure of the working board 8 is as follows: Figure 9 As shown in (c).

[0030] like Figure 3and Figure 7 As shown, the adjustment assembly 3 includes a rotating cylinder 31 rotatably mounted on a rectangular platform 1. The rotating cylinder 31 is driven to rotate by a motor. A through rod 32 is coaxially moved inside the rotating cylinder 31, and a mounting plate 33 is coaxially connected to the top of the through rod 32.

[0031] like Figure 1 and Figure 3 As shown, there are three suction and release components 4, which are vertically movable and spaced along the circumference below the mounting plate 33. The middle one is spaced at an angle of 90° from the other two. They are used to simultaneously pick up substrate 81 and production plate 82 from the three material conveying tables 21 and stack them on the stacking table 5.

[0032] More specifically, such as Figure 3 and Figure 4 As shown, the suction and discharge assembly 4 includes a mounting frame 41, below which an adsorption block 42 is mounted. The bottom surface of the adsorption block 42 has adsorption holes for adsorbing the substrate 81 and the production board 82. The adsorption block 42 is connected to an air inlet pipe 43 located above it. Specifically, the adsorption holes and the air inlet pipe 43 are connected to the inner cavity of the adsorption block 42. In this embodiment, two air inlet pipes 43 are provided, and the two air inlet pipes 43 are located on both sides above the adsorption block 42. The top of the air inlet pipe 43 protrudes from the top surface of the mounting frame 41 and forms an interface. All interfaces are connected to the same suction pump, which is not shown in the figure. To avoid the connection between the suction pump and the interface affecting the rotation of the mounting plate 33, the suction pump can be mounted on a rotating platform that rotates synchronously with the mounting plate 33, or mounted on the mounting plate 33. A valve is installed on the air inlet pipe 43, and the valve is connected to one end of a rotating plate 44. The other end of the rotating plate 44 is provided with a groove 44 along its own length. 1. A sliding rod is slidably inserted in the slide groove 441. The sliding rod is mounted on a slider 45. The slider 45 is vertically inserted on a first guide rod 46. When the slider 45 is at a predetermined highest position, the valve is open. When the slider 45 is at a predetermined lowest position, the valve is closed. That is, the opening and closing of the valve is controlled by the rise or fall of the slider 45. The top of the first guide rod 46 is connected to the top surface of 41, and a first spring 47 is sleeved on its periphery. The first spring 47 is located between the top surface of the mounting frame 41 and the slider 45. The push block 6 is used to act on the slider 45 to move it from the predetermined lowest position to the predetermined highest position when the suction and discharge assembly 4 is above the material conveying table 21 and moves down. The suction and discharge assembly 4 also includes a locking member 48 on the mounting frame 41 to lock the slider 45 at the predetermined highest position, prevent the slider 45 from sliding down, and keep the valve fully open to achieve stable adsorption of the substrate 81 or production board 82.

[0033] like Figure 2 As shown, the stacking platform 5 is located on one side of the rectangular platform 1 and corresponds to the feeding conveyor 22. The stacking platform 5 is provided with an unlocking component 52, which is used to release the locking component 48 from restricting the slider 45.

[0034] The adsorption operation of the adsorption and release component 4 is specifically as follows, taking one of the adsorption and release components 4 as an example: Figure 7 As shown, the suction and release assembly 4 docks with its corresponding material conveying table 21. The suction and release assembly 4 moves down to the height where its suction block 42 is in close contact with the substrate 81 or production board 82. At the same time, the slider 45 is pushed to the predetermined highest position by the push block 6 located on the corresponding material conveying table 21. The valve opens, the suction block 42 adsorbs the substrate 81 or production board 82, and the locking member 48 locks the slider 45 at this time.

[0035] The release operation of the suction and discharge component 4 is specifically as follows, taking one of the suction and discharge components 4 as an example: Figure 6 As shown, the suction and release assembly 4 corresponds to the stacking table 5. The suction and release assembly 4 moves the substrate 81 or production board 82 it has been adsorbed onto the stacking table 5. The unlocking member 52 releases the locking member 48 from the slider 45. After the restriction is released, the slider 45 will slide down under the action of the first spring 47 and remain at the predetermined lowest position. At the same time, the valve closes, and the suction and release assembly 4 completes the release of the substrate 81 or production board 82.

[0036] The stacking device includes three working stages:

[0037] First working stage: The air pump is turned on, such as Figure 7 As shown, the three suction and release components 4 connect with the three incoming material conveyor tables 21 and move downwards simultaneously to adsorb the two substrates 81 and the production board 82. It is important to note that when the adsorption block 42 adsorbs the substrate 81 or production board 82, its contact area with the substrate 81 or production board 82 remains fixed. This is to ensure that when the suction and release components 4 connect with the stacking table 5 later, the substrate 81 or production board 82 released by the suction and release components 4 onto the stacking table 5 is also in a fixed area relative to the stacking table 5. This allows the production board 82 to be stably positioned between the two substrates 81, ensuring the stability of the protection provided by the two substrates 81 for the production board 82 when crossing the horizontal line. To ensure that the contact area between the adsorption block 42 and the substrates 81 and production board 82 remains fixed during adsorption, the substrates 81 or production boards 82 on the three incoming material conveyor tables 21 can be fed in at regular intervals. Alternatively, alignment mechanisms and intercepting baffles can be installed on the three incoming material conveyor tables 21. Since these methods are existing technologies, they will not be elaborated upon further.

[0038] Second working stage: Rotate mounting plate 33, as follows Figure 6 As shown, the three suction and release components 4 rotate sequentially with the mounting plate 33 to the top of the stacking table 5. Taking one of the suction and release components 4 as an example, the suction and release component 4 moves downward, docks with the stacking table 5, and releases the substrate 81 or production plate 82 it has adsorbed onto the stacking table 5.

[0039] Third working stage: After all three suction and release components 4 have completed the release of the two substrates 81 or production board 82 they have adsorbed, the air pump can be turned off, and the mounting plate 33 can be rotated to turn the air pump on. Figure 7 As shown, the three suction and discharge components 4 are respectively connected to the three incoming material conveying tables 21, and simultaneously adsorb the two substrates 81 and the production board 82 of the next group.

[0040] When the stacking device is in the first or third working stage, the three suction and discharge components 4 need to move downward simultaneously. This movement can be achieved by the through rod 32 moving downward relative to the rotating cylinder 31. When the stacking device is in the second working stage, only the suction and discharge component 4 located above the stacking platform 5 needs to move downward. This movement can be achieved by the driving component driving the suction and discharge component 4 individually.

[0041] In actual production applications, the stacking device is not designed for single-pass stacking. To adapt to the pace of modern production, it needs to continuously adsorb, release, stack, and push out the work plate 8 onto the substrate 81 or production plate 82, repeating this cycle repeatedly. Therefore, the actual working stages can be summarized as follows: only the first cycle requires the first working stage, and subsequent cycles only include the second and third working stages.

[0042] To facilitate the ejection of the work plate 8 and meet the recycling requirements, a U-shaped plate 51 that moves along the conveying direction of the feeding conveyor 22 needs to be installed on the stacking table 5. Specifically, as shown... Figure 2 As shown, the opening of the U-shaped plate 51 faces the feeding conveyor table 22, and the inner wall of the U-shaped plate 51 matches the outer wall of the substrate 81, as shown. Figure 6 and Figure 7 As shown, when the distance between the U-shaped plate 51 and the rotating drum 31 is the predetermined minimum value, it corresponds to the position of any suction and release component 4 that rotates to the top of the U-shaped plate 51, which facilitates the precise docking of the suction and release component 4 with the U-shaped plate 51 and the release of the substrate 81 or production plate 82 into the U-shaped plate 51. When the distance between the U-shaped plate 51 and the rotating drum 31 is the predetermined maximum value, it is located on the feeding conveyor table 22. At this time, due to the opening of the U-shaped plate 51, when the stacking device is in the third working stage, the working plate 8 will be output from the opening under the action of the feeding conveyor table 22.

[0043] Specifically, such as Figure 3 As shown, the top of the mounting bracket 41 is connected to two second guide rods 411. The top ends of both second guide rods 411 protrude from the mounting plate 33 and are connected to the same pressure plate 412. A second spring 413 is sleeved on the outer periphery of each of the two second guide rods 411, and the second spring 413 is located between the pressure plate 412 and the mounting plate 33. When the stacking device is in the first or third working stage, as... Figure 7As shown, by simply moving the through rod 32 downward relative to the rotating drum 31, the three suction and discharge components 4 can simultaneously adhere to the substrate 81 or production plate 82 of their corresponding material conveying table 21. Simultaneously, the push block 6 pushes the slider 45 upward to the predetermined highest position, and the valve opens to complete the suction of the substrate 81 or production plate 82. When the stacking device is in the second working stage, as... Figure 6 As shown, a linear mechanism 9, which is fixed above the mounting plate 33 and corresponds to the position of the stacking table 5, pushes the pressure plate 412 downward, causing the suction and release component 4 corresponding to the stacking area 5 to move down synchronously until the substrate 81 or production plate 82 it adsorbs is located in the U-shaped plate 51, so as to release it more accurately. At this time, the distance between the U-shaped plate 51 and the rotating drum 31 is the predetermined minimum value.

[0044] Specifically, such as Figure 2 and Figure 5 As shown, the adjustment assembly 3 also includes a vertical cylinder 34 mounted on a rectangular platform. The rotating cylinder 31 is rotatably installed inside the vertical cylinder 34. The middle part of the through rod 32 extends outward along its own radial direction to form a first blocking part 321. The first blocking part 321 is set away from the suction and discharge assembly 4 located in the middle position. The vertical cylinder 34 is vertically opened towards the feeding conveyor table 22 with a first clearance groove 341 matching the first blocking part 321. That is, only when the through rod 32 rotates to the first blocking part 321 facing the feeding conveyor table 22, that is, when the stacking device is in the first or third working stage, the through rod 32 can move downward relative to the rotating cylinder 31.

[0045] Specifically, such as Figure 6 and Figure 7 As shown, a third spring 323 is sleeved around the outer periphery of the through rod 32. The third spring 323 is located between the first blocking part 321 and the top surface of the rotating drum 31. When the third spring 323 is in its natural state, the first blocking part 321 is located above the vertical cylinder 34 to ensure that the through rod 32 can rotate smoothly with the rotating drum 31. When the stacking device is in the first or third working stage, since the three suction and discharge components 4 correspond to the three material conveying tables 21, and the linear mechanism 9 located above the stacking table 5 is fixed in position, no additional driving component is required. Figure 1 and Figure 7 As shown, the output end of the linear mechanism 9 can directly contact the mounting plate 33 and push the mounting plate 33 downward, thereby causing the through rod 32 to move downward relative to the rotating cylinder 31. The three suction and release components 4 complete the suction work on the substrate 81 or production plate 82. After the suction is completed, the output end of the linear mechanism 9 resets, the third spring 323 returns to its natural state, and the through rod 32 moves upward relative to the rotating cylinder 31. When the stacking device is in the second working stage, as... Figure 6As shown, the output end of the linear mechanism 9 pushes the pressure plate 412 of the corresponding suction and release component 4 downward, thereby causing the corresponding suction and release component 4 to move downward to complete the release of the substrate 81 or production plate 82. Since the first blocking part 321 and the first clearance groove 341 are not in a corresponding state at this time, the through rod 32 can only move down to the height where the first blocking part 321 contacts the top surface of the vertical cylinder 34. The other two suction and release components 4 that are not corresponding to the stacking table 5 will maintain a certain distance from the material conveying table 21 below them.

[0046] More specifically, such as Figure 2 and Figure 5 As shown, the middle of the through rod 32 also extends outward along its own radial direction to form a second blocking part 322. There are three second blocking parts 322, which are respectively arranged facing the three suction and discharge components 4. This structure can improve the stability of the third spring 323 being locked between the first blocking part 321 and the top surface of the rotating drum 31. The width of the second blocking part 322 is greater than the width of the first blocking part 321, that is, the second blocking part 322 cannot be inserted into the first clearance groove 341. The vertical cylinder 34 is vertically opened with a second clearance groove 342 matching the second blocking part 322 facing the three material conveying tables 21, so as to ensure that the through rod 32 can move downward relative to the rotating drum 31 only when the first blocking part 321 on it is facing the feeding conveying table 22.

[0047] Specifically, such as Figure 2 , Figure 6 and Figure 7 As shown, the pushing component 7 includes two vertical plates formed on both sides of the first clearance groove 341 and having vertical grooves 71, and two connecting rods 72. A connecting post 721 is formed between the two ends of each connecting rod 72. One connecting post 721 slides through the two vertical grooves 71, and the other connecting post 721 is rotatably connected to the inner end of the U-shaped plate 51. A mating post 73 is provided below the vertical plates. The mating post 73 is fixed to the vertical cylinder 34 by a connecting plate. A seventh spring 74 connects the mating post 73 and the connecting post 721 slidingly through the vertical groove 71, and the seventh spring 74 is always in a compressed state. When the stacking device is in the third working stage, as... Figure 7As shown, the first blocking part 321 and the first clearance groove 341 are in a corresponding state. The output end of the linear mechanism 9 directly contacts the mounting plate 33 and pushes the mounting plate 33 down, thereby causing the through rod 32 to move downward relative to the rotating drum 31. The first blocking part 321 will push one of the connecting columns 721 downward to the bottom of the vertical groove 71. Under the action of the connecting rod 72, the U-shaped plate 51 will be pushed onto the feeding conveyor table 22 to complete the output of the working plate 8. After the output is completed, the output end of the linear mechanism 9 is reset, the third spring 323 returns to its natural state, the through rod 32 moves upward relative to the rotating drum 31, and one of the connecting columns 721 is reset to the top of the vertical groove 71 under the action of the seventh spring 74. The distance between the U-shaped plate 51 and the rotating drum 31 is reduced to the predetermined minimum value.

[0048] Therefore, when the stacking device is in the first or third working stage, the mounting plate 33 can be pushed down by the output end of the linear mechanism 9, which can simultaneously complete the adsorption work of the three suction and release components 4 and the push-out of the U-shaped plate 51. The linear mechanism 9 is preferably a cylinder.

[0049] Specifically, such as Figure 2 As shown, the stacking platform 5 also includes two guide rails 53 disposed on the rectangular platform 1, and the U-shaped plate 51 slides between the two guide rails 53.

[0050] Specifically, such as Figure 3 and Figure 4 As shown, the mounting bracket 41 includes a top plate and four side plates disposed below its periphery. The bottom surface of the side plates is higher than the bottom surface of the adsorption block 42. In this embodiment, as shown... Figure 1 As shown, an extension plate 49 is also connected between the mounting bracket 41 and the second guide rod 411, which is used to improve the stability of the suction and release assembly 4 relative to the mounting plate 33 when the stacking device is in the first or third stage, that is, when the suction and release assembly 4 adsorbs the substrate 81 or the production plate 82.

[0051] Specifically, such as Figure 4As shown, the locking member 48 includes a wedge-shaped block that moves through a side plate adjacent to the slider 45. A third guide rod is vertically formed on the outer side of the side plate adjacent to the slider 45. The outer end of the wedge-shaped block passes through the third guide rod. A fourth spring 414 is sleeved on the outer periphery of the third guide rod, and the fourth spring 414 is located between the outer side of the wedge-shaped block and the limiting head at the outer end of the third guide rod. The bottom surface of the wedge-shaped block is a wedge-shaped surface with an inward and outward trend. When the slider 45 moves to the predetermined highest position, its bottom surface and the top surface of the locking member 48 are at the same height, so that the locking member 48 can move inward under the action of the fourth spring 414. At this time, the slider 45 is locked in the predetermined highest position under the joint constraint of the first spring 47 in a compressed state and the locking member 48. In this embodiment, when the slider 45 is at the predetermined lowest position, since the slider 45 has a certain height, its outer side is in close contact with the inner side of the locking member 48, and the locking member 48 does not interfere with the upward movement of the slider 45; if the height of the slider 45 is small, the locking member 48 is higher than the slider 45 at the predetermined lowest position, and the slider 45 can also move upward by means of the sliding cooperation between its outer apex corner and the wedge surface, that is, the setting of the locking member 48 will not interfere with the upward movement of the slider 45.

[0052] More specifically, such as Figure 2 , Figure 5 and Figure 8 As shown, the bottom of the slider 45 is also provided with an arc-shaped groove 451 with an inverted L-shaped cross-section and penetrating at both ends. An arc-shaped block 452 is provided along the radial direction of the horizontal section of the arc-shaped groove 451. A fourth guide rod is provided on the side of the arc-shaped block 452 facing the end of the horizontal section of the arc-shaped groove 451. The fourth guide rod moves through the inside of the slider 45. A fifth spring 453 is sleeved on the outer periphery of the fourth guide rod, and the fifth spring 453 is located between the end face of the horizontal section of the arc-shaped groove 451 and the arc-shaped block 452. The unlocking member 52 includes a rectangular strip 521, the top surface of which is connected to an arc-shaped locking strip 522 that matches the vertical section of the arc-shaped groove 451. The arc-shaped locking strip 522 faces the end of the horizontal section of the arc-shaped groove 451. The surface is a conical surface with the small end facing down. An arc-shaped groove 523 is provided on the side of the arc-shaped strip 522 facing the end of the horizontal section of the arc-shaped groove 451. When the top surface of the arc-shaped strip 522 contacts the top surface of the arc-shaped groove 451, the position of the arc-shaped groove 523 corresponds to that of the arc-shaped block 452. The axes of the arc-shaped groove 451, the arc-shaped block 452, the arc-shaped strip 522, and the arc-shaped groove 523 are all consistent with the axis of the rotating cylinder 31. The stacking platform 5 also includes a mating platform 54 formed on the outside of the two guide rails 53. The rectangular strip 521 is vertically inserted into a groove 541 formed on the mating platform 54. A sixth spring 542 is connected between the rectangular strip 521 and the bottom surface of the groove 541.

[0053] Taking one of the suction and release components 4 as an example, the unlocking component 52 includes four working processes:

[0054] First working process: The suction and release assembly 4 is located above the stacking table 5. At this time, the slider 45 is at the predetermined highest position. The suction and release assembly 4 drives the substrate 81 or production board 82 it has been adsorbed to move down into the U-shaped plate 51. At this time, the distance between the U-shaped plate 51 and the rotating drum 31 is the predetermined minimum value. During this process, the unlocking member 52 can push the locking member 48 to move outward through the sliding cooperation between its outer top corner and the wedge-shaped surface, thereby removing the restriction of the slider 45 by the locking member 48. On the other hand, the arc-shaped locking strip 522 on it extends into the vertical section of the arc-shaped groove 451, and through the sliding cooperation between its conical surface and the arc-shaped block 452, it causes the arc-shaped block 452 to move towards the end of the horizontal section of the arc-shaped groove 451 until the top surface of the arc-shaped locking strip 522 contacts the top surface of the arc-shaped groove 451. The position of the arc-shaped slot 523 corresponds to that of the arc-shaped block 452. Under the action of the fifth spring 453, the arc-shaped block 452 is locked in the arc-shaped slot 523.

[0055] Second working process: The suction and release component 4 moves up to a certain height, and the slider 45 slides down to the predetermined lowest position relative to the first guide rod 46 due to the cooperation of the arc groove 451 and the arc clip 522. The valve closes, and the suction block 42 releases the substrate 81 or production board 82 it has adsorbed into the U-shaped plate 51.

[0056] The third working process: The suction and release component 4 continues to move upward until the second spring 413 returns to its natural state. Due to the cooperation between the arc-shaped locking strip 522 and the arc-shaped groove 451, the unlocking component 52 will also move upward a certain distance, and the sixth spring 542 will be stretched.

[0057] Fourth working process: Rotate the mounting plate 33, the slider 45 will rotate relative to the unlocking part 52, and the arc groove 451 will also rotate relative to the arc-shaped locking strip 522. As a result, the cooperation between the arc groove 451 and the arc-shaped locking strip 522 fails, and the unlocking part 52 moves downward until the sixth spring 542 returns to its natural state.

[0058] Several points need to be noted during the above working process: ① In the first working process, to achieve stable cooperation between the arc-shaped locking strip 522 and the arc-shaped groove 451, the elastic constant of the sixth spring 542 must be greater than that of the fifth spring 453 to ensure that the arc-shaped locking strip 522 can smoothly extend into the arc-shaped groove 451; ② The height setting of the U-shaped plate 51 should ensure that: in the second working process, after the suction and release assembly 4 moves up to a certain height, the substrate 81 or production plate 82 it adsorbs is still located in the U-shaped plate 51; ③ When the slider 45 is at the predetermined lowest position, the top surface of its arc-shaped groove 451 is lower than the bottom surface of the side plate to ensure that no interference occurs when the mounting plate 33 drives the suction and release assembly 4 to rotate in the fourth working process; ④ The height setting of the rectangular strip 521 should ensure that: in the third working process, a part of the unlocking piece 52 that moves up a certain distance is still located in the groove 541 to avoid the situation where the arc-shaped groove 451 and the arc-shaped locking strip 522 fail to separate due to its rotation.

[0059] In application, the above description is only a preferred embodiment of this application and is not intended to limit this application. Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application.

Claims

1. A stacking device for circuit boards crossing horizontal lines, characterized in that, include: A rectangular platform (1) is provided with conveying platforms (2) on all four sides. The conveying platform (2) includes three incoming material conveying tables (21) and one feeding conveying table (22). Each of the three incoming material conveying tables (21) is provided with a push block (6). One of the incoming material conveying tables (21) is used to convey the production board (82), and the two incoming material conveying tables (21) on both sides are used to convey the substrate (81). One of the substrates (81) is in an inverted state. The stacking table (5) is located on one side of the rectangular platform (1) and is connected to the feeding conveyor table (22); The adjustment component (3) includes a rotating cylinder (31) mounted on a rectangular platform (1), a through rod (32) moving coaxially inside the rotating cylinder (31), and a mounting plate (33) coaxially connected to the top of the through rod (32). Three suction and discharge components (4) are vertically movable and spaced along the circumference below the mounting plate (33). The middle one is spaced at an angle of 90° from the other two. They are used to simultaneously pick up the substrate (81) and the production plate (82) from the three material conveying tables (21) and stack them onto the stacking table (5). The suction and discharge assembly (4) includes a mounting frame (41) with an adsorption block (42) installed below it. The adsorption block (42) is connected to an air inlet pipe (43). The air inlet pipe (43) interfaces of all suction and discharge assemblies (4) are connected to the same air pump. A valve is installed on the air inlet pipe (43). The valve is connected to one end of a rotating plate (44). The other end of the rotating plate (44) is connected to a toggle assembly installed on the mounting frame (41) and moving vertically. The toggle assembly is used to drive the rotating plate (44) to rotate to open / close the valve. When the suction and discharge assembly (4) is above the material conveying table (21) and moves downward, the push block (6) acts on the toggle assembly to move it from the first position to the second position. When the toggle assembly is in the second position, the rotating plate (44) rotates to fully open the valve. The mounting frame (41) is provided with a locking member (48) for locking the toggle assembly in the second position. The stacking platform (5) is provided with an unlocking component (52), which is used to act on the toggle component to release the locking component (48) when the suction and discharge component (4) is on the stacking platform (5) and moves down. When the lock is released, the toggle component moves down from the second position to the first position. When the toggle component is in the first position, the turntable (44) rotates to completely close the valve.

2. The stacking device for circuit boards crossing horizontal lines according to claim 1, characterized in that, The rotating plate (44) is provided with a groove (441) along its own length direction. The actuating component includes a first guide rod (46) arranged vertically and connected to the top surface of the mounting frame (41), a slider (45) that passes vertically through the first guide rod (46), and a sliding rod that is provided on the slider (45) and slides through the groove (441). A first spring (47) is sleeved around the first guide rod (46) and located between the mounting frame (41) and the slider (45). When the actuating component is in the first position, the slider (45) is in the predetermined lowest position. When the slider (45) moves to the predetermined highest position under the action of the push block (6), the actuating component is in the second position.

3. The stacking device for circuit boards crossing horizontal lines according to claim 2, characterized in that, The mounting bracket (41) includes a top plate and four side plates located below its periphery. The locking member (48) includes a wedge block that moves through the side plate adjacent to the slider (45). A third guide rod is formed perpendicularly on the outer side of the side plate adjacent to the slider (45). The outer end of the wedge block passes through the third guide rod. A fourth spring (414) is sleeved on the outer periphery of the third guide rod. The fourth spring (414) is located between the outer side of the wedge block and the limiting head at the outer end of the third guide rod. The bottom surface of the wedge block is a wedge-shaped surface with an inner high and outer low trend.

4. The stacking device for circuit boards crossing horizontal lines according to claim 3, characterized in that, The bottom of the slider (45) is also provided with an arc groove (451) with an inverted L-shaped cross section and through both ends. An arc block (452) is provided along the radial direction of the horizontal section of the arc groove (451). A fourth guide rod is provided on the side of the arc block (452) facing the end of the horizontal section of the arc groove (451). The fourth guide rod moves through the inside of the slider (45). A fifth spring (453) is sleeved on the outer periphery of the fourth guide rod. The fifth spring (453) is located between the end face of the horizontal section of the arc groove (451) and the arc block (452). The unlocking component (52) includes a rectangular strip (521), the top surface of which is connected to an arc-shaped locking strip (522) that matches the vertical section of the arc-shaped groove (451). The side of the arc-shaped locking strip (522) facing the end of the horizontal section of the arc-shaped groove (451) is a conical surface with the small end facing down. An arc-shaped locking groove (523) is provided on the side of the arc-shaped locking strip (522) facing the end of the horizontal section of the arc-shaped groove (451). When the top surface of the arc-shaped locking strip (522) contacts the top surface of the arc-shaped groove (451), the arc-shaped locking groove (523) opens. 23) Corresponding to the position of the arc block (452), the axes of the arc groove (451), arc block (452), arc strip (522), and arc groove (523) are all consistent with the axis of the rotating cylinder (31). The stacking platform (5) also includes a mating platform (54). The rectangular strip (521) is vertically inserted into a groove (541) formed on the mating platform (54). A sixth spring (542) is connected between the rectangular strip (521) and the bottom surface of the groove (541).

5. The stacking device for circuit boards crossing horizontal lines according to claim 1, characterized in that, The top of the mounting bracket (41) is connected to two second guide rods (411). The top ends of the two second guide rods (411) pass through the mounting plate (33) and are connected to the same pressure plate (412). The outer periphery of the two second guide rods (411) is fitted with a second spring (413). The second spring (413) is located between the pressure plate (412) and the mounting plate (33).

6. The stacking device for circuit boards crossing horizontal lines according to claim 1, characterized in that, The adjustment assembly (3) also includes a vertical cylinder (34) set on a rectangular platform (1), a rotating cylinder (31) is rotatably installed inside the vertical cylinder (34), and a first blocking part (321) is formed by extending the middle part of the through rod (32) radially outward. The first blocking part (321) is set away from the suction and discharge assembly (4) in the middle position. The vertical cylinder (34) is vertically opened towards the feeding conveyor table (22) with a first clearance groove (341) matching the first blocking part (321).

7. A stacking device for circuit boards crossing horizontal lines according to claim 6, characterized in that, A third spring (323) is fitted around the outer periphery of the through rod (32). The third spring (323) is located between the first blocking part (321) and the top surface of the rotating cylinder (31). When the third spring (323) is in its natural state, the first blocking part (321) is located above the vertical cylinder (34).

8. A stacking device for circuit boards crossing horizontal lines according to claim 7, characterized in that, The middle part of the through rod (32) also extends outward along its own radial direction to form a second blocking part (322). There are three second blocking parts (322), which are respectively arranged facing the three suction and discharge components (4). The width of the second blocking part (322) is greater than the width of the first blocking part (321). The vertical cylinder (34) is vertically opened with a second clearance groove (342) matching the second blocking part (322) facing the three material conveying tables (21).

9. A stacking device for circuit boards crossing horizontal lines according to claim 6, characterized in that, The stacking table (5) is also provided with a U-shaped plate (51). The opening of the U-shaped plate (51) faces the feeding conveyor table (22), and the inner wall of the U-shaped plate (51) matches the outer wall of the substrate (81). When the distance between the U-shaped plate (51) and the rotating drum (31) is a predetermined minimum value, it corresponds to the position of any suction and discharge assembly (4) that rotates to the top of the U-shaped plate (51). When the distance between the U-shaped plate (51) and the rotating drum (31) is a predetermined maximum value, it is located on the feeding conveyor table (22).

10. A stacking device for a circuit board crossing a horizontal line according to claim 9, characterized in that, It also includes a push assembly (7), which includes two vertical plates formed on both sides of the first clearance groove (341) and two connecting rods (72). A connecting post (721) is formed between the two ends of the two connecting rods (72). One of the connecting posts (721) slides through the two vertical grooves (71), and the other connecting post (721) is rotatably connected to the inner end of the U-shaped plate (51). A mating post (73) is provided below the vertical plate. The mating post (73) is fixed to the vertical cylinder (34) by a connecting plate. An elastic element is connected between the mating post (73) and the connecting post (721) that slides through the vertical groove (71).

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