Magnetic carrier loading device and PCB processing equipment

Abstract

The application provides a magnetic carrier feeding device and a PCB processing equipment, wherein the magnetic carrier feeding device is used for separating and feeding stacked magnetic carriers, and the device comprises a horizontal conveying mechanism, a vertical lifting mechanism and a pushing mechanism, the horizontal conveying mechanism is vertically connected with the vertical lifting mechanism, and the pushing mechanism is arranged above the horizontal conveying mechanism. The horizontal conveying mechanism conveys the stacked magnetic carriers to the front of the vertical lifting mechanism through conveying rollers, the vertical lifting mechanism drives the horizontal mounting frame to rise, the driving cylinder drives the horizontal pushing plate to move, the topmost magnetic carrier is pushed to the step structure formed by the staggered blocking piece, the single carrier is separated from the stacked carriers below in a staggered manner, and a stable station is provided for subsequent handling. The horizontal conveying mechanism has the functions of carrier conveying and lifting carrier, and does not need to additionally arrange a carrier frame or an independent lifting frame, so that the number of components is reduced, and the equipment cost and occupied space are reduced.

Description

Technical Field

[0001] This utility model relates to the field of SMT processing and testing, specifically to a magnetic carrier loading device and PCB processing equipment. Background Technology

[0002] Printed circuit boards (PCBs) are core components of electronic devices, and the efficiency and precision of their surface mount soldering process directly affect the production quality and capacity of electronic devices.

[0003] In the PCB surface mount technology (SMT) soldering process, magnetic carriers are key auxiliary tools. They are made of aluminum alloy and magnetic stainless steel sheets and can be adapted to the needs of various equipment such as printers, pick-and-place machines, and reflow ovens. They have become an important part of the SMT production line.

[0004] In automated PCB manufacturing, the stacking, batch loading, and precise separation of magnetic carriers are crucial steps in ensuring continuous production line operation. Traditional methods typically employ manual or mechanical clamping, which presents the following problems: 1. Manual operation is inefficient and prone to material damage or contamination due to operational errors. 2. Mechanical clamping requires larger gaps at the carrier edges and necessitates thicker and heavier carriers, leading to lower carrier stacking density. This necessitates frequent machine stops for restocking during stacking and separation, impacting production efficiency.

[0005] Therefore, how to overcome the shortcomings of the existing technology mentioned above has become the subject of this utility model. Utility Model Content

[0006] The purpose of this invention is to provide a magnetic carrier loading device and PCB processing equipment to achieve rapid loading and precise separation of magnetic carriers.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is: a magnetic carrier loading device for separating and loading stacked magnetic carriers, comprising a horizontal conveying mechanism, a vertical lifting mechanism, and a pushing mechanism, wherein the horizontal conveying mechanism is vertically connected to the vertical lifting mechanism, and the pushing mechanism is disposed above the horizontal conveying mechanism, wherein: The horizontal conveying mechanism includes a horizontal mounting frame, a conveying motor, and multiple conveying rollers. The multiple conveying rollers are arranged parallel to each other within the horizontal mounting frame and are connected to the conveying motor for transmission. The vertical lifting mechanism includes a vertical mounting frame, a misalignment blocking component, and a lifting assembly. The misalignment blocking component is disposed on the top of the vertical mounting frame and forms a stepped structure together with the top surface of the vertical mounting frame. The lifting assembly includes a lifting motor, a vertical threaded rod, and a vertical slide rail. The vertical slide rail is disposed on at least one side of the vertical mounting frame. The horizontal mounting frame is slidably connected to the vertical slide rail. The vertical threaded rod is disposed within the vertical mounting frame and is drivenly connected to the lifting motor. The horizontal mounting frame is drivenly connected to the vertical threaded rod. The pushing mechanism includes a horizontal pushing plate and a driving cylinder. The horizontal pushing plate is connected to the telescopic end of the driving cylinder. The driving cylinder can drive the horizontal pushing plate to move toward the vertical lifting mechanism. The lower edge of the horizontal pushing plate is higher than the top surface of the vertical mounting frame by no more than the thickness of a magnetic carrier. The horizontal pushing plate is used to push the topmost magnetic carrier to the stepped structure formed by the misaligned blocking member and the top surface of the vertical mounting frame.

[0008] In the above scheme, the horizontal conveying mechanism is used to transport the stacked magnetic carriers to the vertical lifting mechanism. After the carriers are in place, the vertical lifting mechanism drives the horizontal conveying mechanism to lift as a whole. Then, the pushing mechanism pushes the top magnetic carrier to abut against the misalignment blocking component. After the top magnetic carrier and the magnetic carrier below are misaligned, their magnetic properties weaken, which facilitates subsequent gripping and handling.

[0009] In a further technical solution, the vertical lifting mechanism also includes multiple limiting rods. The limiting rods are used to keep the magnetic carrier in front of the vertical lifting mechanism. The multiple limiting rods are arranged parallel to each other in the vertical mounting frame, and the limiting rods are flush with the end face of the vertical mounting frame near the horizontal conveying mechanism.

[0010] In the above scheme, the limiting rod plays a role in limiting the magnetic carrier in the conveying direction. The magnetic carrier is conveyed by the horizontal conveying mechanism to the position against the limiting rod. During the lifting process, it can also maintain this position and will not be blocked by the top plate of the vertical mounting frame. After being lifted, it can be pushed by the pushing mechanism.

[0011] In a further technical solution, a flexible layer is provided on the end face of the misaligned blocking member facing the horizontal conveying mechanism.

[0012] In the above scheme, the flexible layer can be a rubber layer to protect the magnetic carrier from being squeezed and damaged.

[0013] In a further technical solution, the horizontal conveying mechanism also includes a guide plate, which is engaged on the conveying roller along the conveying direction of the carrier.

[0014] In the above scheme, the guide plate is used for lateral (i.e., perpendicular to the conveying direction) limiting to ensure that the magnetic carrier is in a position that can be pushed by the pushing mechanism in the lateral direction.

[0015] In a further technical solution, the guide plate is detachably connected to the horizontal mounting frame. The guide plate can be adjusted and disassembled as needed, thus making it suitable for magnetic carriers of different sizes.

[0016] In a further technical solution, the horizontal mounting frame is slidably engaged with the vertical slide rail by means of a slider. A first reinforcing rib is provided below the horizontal mounting frame. The first reinforcing rib is a right-angled triangle. The longer right-angled side of the first reinforcing rib is connected to the horizontal mounting frame, and the shorter right-angled side of the first reinforcing rib is connected to the slider.

[0017] By setting the first reinforcing rib, the structure can be strengthened according to the stress characteristics of the horizontally mounted frame, while reducing swaying during movement.

[0018] A further technical solution involves providing a second reinforcing rib on the side of the vertical mounting frame away from the horizontal mounting frame. By providing the second reinforcing rib, the bending strength of the vertical lifting frame is increased. When the horizontal conveying mechanism rises to the top, the vertical lifting frame bears a large bending moment; therefore, the provision of the second reinforcing rib ensures that the strength of the vertical lifting frame meets the requirements.

[0019] A further technical solution involves installing a positioning sensor at the top of the vertical mounting frame to detect whether the top of the stacked magnetic carriers has risen to a preset height corresponding to the horizontal push plate. By using the positioning sensor, it detects whether any magnetic carriers need to be misaligned. When no carrier is detected, the operator can be notified to load materials.

[0020] According to another aspect of this application, a PCB processing equipment is also provided, including a magnetic carrier loading device and a conveying device. The magnetic carrier loading device is as described in the preceding embodiments. The conveying device includes a three-axis gantry mechanism and an adsorption assembly. The adsorption assembly is mounted on the three-axis gantry mechanism and is used to pick up and transport magnetic carriers from the magnetic carrier loading device. By cooperating with the magnetic carrier loading device and the conveying device, automated operation can be achieved, replacing existing manual or mechanical clamping methods and improving production efficiency.

[0021] In a further technical solution, the PCB processing equipment includes at least two magnetic carrier loading devices, which are arranged in parallel to achieve uninterrupted loading in accordance with the rhythm of the conveying device.

[0022] The working principle and technical effects of the technical solution provided in this application are as follows: The horizontal conveying mechanism transports the stacked magnetic carriers to the front of the vertical lifting mechanism via conveyor rollers. Then, the lifting motor of the vertical lifting mechanism drives the vertical threaded screw to move, which in turn drives the horizontal mounting frame connected to the vertical slide rail to rise and fall until the top carrier is at the same height as the horizontal push plate of the pushing mechanism. Finally, the driving cylinder moves the horizontal push plate, pushing only the topmost magnetic carrier to the stepped structure formed by the misalignment blocking component, realizing the misalignment and separation of the single carrier from the stacked carriers below, and providing a stable working position for subsequent handling.

[0023] Compared to existing magnetic carrier separation devices, the solution provided in this application has a simpler structure. The horizontal conveying mechanism has both carrier conveying and lifting functions, eliminating the need for additional carrier frames or independent lifting frames, thus reducing the number of components, equipment costs, and space requirements. In addition, the horizontal conveying mechanism can be directly connected to existing production line conveyor belts or AGVs, simplifying the carrier transfer process. Attached Figure Description

[0024] Appendix Figure 1 This is a schematic diagram of the PCB processing equipment provided in an embodiment of the present utility model; Appendix Figure 2 A schematic diagram of two magnetic carrier loading devices arranged side by side provided in an embodiment of this utility model; Appendix Figure 3 This is a top view of two magnetic carrier loading devices arranged side by side in an embodiment of this utility model; Appendix Figure 4 This is a front view of two magnetic carrier loading devices arranged side by side in an embodiment of this utility model; Appendix Figure 5 This is a side view of the magnetic carrier loading device in an embodiment of this utility model; Appendix Figure 6 This is a partial side view of the magnetic carrier loading device in an embodiment of this utility model; Appendix Figure 7 This is a partial perspective view of the magnetic carrier loading device in an embodiment of this utility model; In the attached diagrams: 100. PCB processing equipment; 1. Magnetic carrier loading device; 10. Horizontal conveying mechanism; 11. Horizontal mounting frame; 12. Conveyor motor; 13. Multiple conveyor rollers; 14. Guide plate; 15. Slider; 16. First reinforcing rib; 20. Vertical lifting mechanism; 21. Vertical mounting frame; 22. Misalignment blocking component; 23. Lifting motor; 24. Vertical threaded screw; 25. Vertical slide rail; 26. Limiting rod; 27. Second reinforcing rib; 28. Position sensor; 30. Pushing mechanism; 31. Horizontal push plate; 33. Crossbeam; 4. Handling device; 41. Three-axis gantry mechanism; 42. Adsorption assembly. Detailed Implementation

[0025] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0026] The terms "first," "second," etc., used in this article do not specifically refer to order or sequence, nor are they intended to limit this case; they are merely used to distinguish components or operations described using the same technical terms.

[0027] The terms "connection" or "positioning" as used in this article can refer to two or more components or devices making direct physical contact with each other, or making indirect physical contact with each other, or to two or more components or devices operating or moving with each other.

[0028] The terms “include,” “including,” and “have” used in this article are all open-ended, meaning they include but are not limited to.

[0029] Unless otherwise specified, the terms used herein generally have their ordinary meaning in the context of the art, the subject matter, and the specific context. Certain terms used to describe this case will be discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in describing the case.

[0030] The terms “front,” “back,” “up,” “down,” “left,” and “right” used in this article are directional terms. In this case, they are only used to describe the positional relationship between the structures and are not intended to limit the specific direction of the protection scheme or its actual implementation.

[0031] See appendix Figure 1 This application provides a PCB processing equipment, including a magnetic carrier loading device 1 and a conveying device 4. The magnetic carrier loading device 1 is used to separate and load stacked magnetic carriers. The conveying device 4 includes a three-axis gantry mechanism 41 and an adsorption assembly 42. The adsorption assembly 42 is mounted on the three-axis gantry mechanism 41. Driven by the three-axis gantry mechanism 41, the adsorption assembly 42 can pick up magnetic carriers from the magnetic carrier loading device 1 and transport them to the working position for subsequent operations.

[0032] In this embodiment, the PCB processing equipment includes two magnetic carrier loading devices 1, which are arranged side by side so as to coordinate with the rhythm of the conveying device and achieve uninterrupted loading.

[0033] Figure 2 , 3 Section 4 shows the positional relationship and structure of the two magnetic carrier loading devices. Figure 5 , 6 Section 7 illustrates the specific structure of a single magnetic carrier loading device. For example... Figure 2 As shown, the magnetic carrier loading device includes a horizontal conveying mechanism 10, a vertical lifting mechanism 20, and a pushing mechanism 30. The horizontal conveying mechanism 10 is vertically connected to the vertical lifting mechanism 20, and the pushing mechanism 30 is located above the horizontal conveying mechanism 10.

[0034] The horizontal conveying mechanism 10 includes a horizontal mounting frame 11, a conveying motor 12, and multiple conveying rollers 13. The multiple conveying rollers 13 are arranged parallel to each other within the horizontal mounting frame 11. The conveying rollers 13 are connected to the conveying motor 12 via belts, gears, or other structures. When the conveying motor 12 is running, it can drive the conveying rollers 13 to rotate synchronously, thereby realizing the conveying of the stacked magnetic carrier.

[0035] The vertical lifting mechanism 20 includes a vertical mounting frame 21, a misalignment stop 22, and a lifting assembly. The misalignment stop 22 is disposed at the top of the vertical mounting frame 21 and together with the top surface of the vertical mounting frame 21, forms a stepped structure. This stepped structure is used to receive the end of the separated individual magnetic carrier. Specifically, after the magnetic carrier at the top is pushed by the pushing mechanism 30, its end face abuts against the misalignment stop 22, and the lower surface of its end overlaps the top surface of the vertical mounting frame 21.

[0036] The lifting assembly includes a lifting motor 23, a vertical threaded screw 24, and a vertical slide rail 25. The vertical slide rail 25 is disposed on two sides of the vertical mounting frame 21, and the horizontal mounting frame 11 is slidably connected to the vertical slide rail 25. The vertical threaded screw 24 is disposed inside the vertical mounting frame 21 and is drivenly connected to the lifting motor 23. At the same time, the horizontal mounting frame 11 is drivenly connected to the vertical threaded screw 24. When the lifting motor 23 is running, it can drive the vertical threaded screw 24 to rotate, thereby causing the horizontal mounting frame 11 to move up and down along the vertical slide rail 25.

[0037] The pushing mechanism 30 includes a horizontal pushing plate 31 and a drive cylinder (obscured in the figure). The horizontal pushing plate 31 is connected to the telescopic end of the drive cylinder, which is mounted on a crossbeam 33. Two parallel magnetic carrier loading devices 1 can share the same crossbeam 33. When the drive cylinder extends or retracts, it can move the horizontal pushing plate 31 toward the vertical lifting mechanism 20; the lower edge of the horizontal pushing plate 31 is no more than one magnetic carrier thickness above the top surface of the vertical mounting frame 21, ensuring that only the topmost single magnetic carrier can be pushed. The function of the horizontal pushing plate 31 is to push the topmost magnetic carrier to the stepped structure formed by the misaligned blocking member 22 and the top surface of the vertical mounting frame 21, such as... Figure 6 and Figure 7 As shown.

[0038] Preferably, the end face of the horizontal push plate 31 may be covered with a rubber pad to avoid scratching or squeezing the magnetic carrier during the pushing process.

[0039] The working process of the magnetic carrier loading device is as follows: the horizontal conveying mechanism 10 conveys the stacked magnetic carriers to the vertical lifting mechanism 20 through the conveying roller 13. When the carrier is in place, the lifting motor 23 of the vertical lifting mechanism 20 is started, which drives the horizontal mounting frame 11 of the horizontal conveying mechanism 10 to be lifted as a whole until the top magnetic carrier is matched with the height of the horizontal push plate 31. Then the drive cylinder 32 drives the horizontal push plate 31 to move, pushing the top magnetic carrier to abut against the misalignment blocking member 22. At this time, the top magnetic carrier is misaligned with the magnetic carriers stacked below, and the magnetic effect between them is weakened, which makes it easier for the handling device to pick up and handle individual magnetic carriers.

[0040] To limit the movement of the magnetic carrier along the conveying direction, the vertical lifting mechanism 20 also includes multiple limiting rods 26. These limiting rods 26 are arranged parallel to each other within the vertical mounting frame 21, and the end faces of the vertical mounting frame 21 near the horizontal conveying mechanism 10 are flush. The function of the limiting rods 26 is to keep the magnetic carrier in a preset position in front of the vertical lifting mechanism 20. After the magnetic carrier is conveyed to the position against the limiting rods 26 by the conveying rollers 13 of the horizontal conveying mechanism 10, it can stably maintain this position during subsequent lifting processes. During the lifting process, it will not be obstructed by the top plate of the vertical mounting frame 21, and after lifting, it can be smoothly pushed by the horizontal pushing plate 31 of the pushing mechanism 30.

[0041] A flexible layer is provided on the end face of the misalignment blocking member 22 facing the horizontal conveying mechanism 10. This flexible layer can be a rubber layer with a thickness of 2-3 mm and is fixed to the misalignment blocking member 22 with bolts. When the horizontal push plate 31 pushes the magnetic carrier to abut against the misalignment blocking member 22, the flexible layer can buffer the collision force between the two, protect the magnetic carrier from being squeezed and damaged, and prevent the carrier from deforming or malfunctioning due to the collision.

[0042] The horizontal conveying mechanism 10 also includes a guide plate 14, which is mounted on the conveying roller 13 along the conveying direction of the carrier. The guide plate 14 is used to laterally limit the magnetic carrier, where lateral means perpendicular to the conveying direction of the carrier. Through the limiting effect of the guide plate 14, it is ensured that the magnetic carrier is always in the preset lateral position during the conveying process, so as to ensure that the horizontal push plate 31 of the subsequent push mechanism 30 can accurately push the carrier.

[0043] Preferably, the guide plate 14 is detachably connected to the horizontal mounting frame 11. For example, the bottom of the guide plate 14 is connected to the side beam of the horizontal mounting frame 11 by bolts. The operator can disassemble or adjust the guide plate 14 according to the actual size of the magnetic carrier used, so that the device can be adapted to magnetic carriers of different specifications and improve the versatility of the device.

[0044] The horizontal mounting frame 11 is slidably connected to the vertical slide rail 25 via a slider 15. A first reinforcing rib 16 is provided below the horizontal mounting frame 11. The first reinforcing rib 16 has a right-angled triangular structure, with its longer right-angled side connected to the horizontal mounting frame 11 and its shorter right-angled side connected to the slider 15. This structural design can specifically strengthen the horizontal mounting frame 11 according to its stress characteristics, enhance the structural strength of the connection between the horizontal mounting frame 11 and the slider 15, and reduce the swaying of the horizontal mounting frame 11 during its movement along the vertical slide rail 25, ensuring the smoothness of the lifting and lowering operation.

[0045] A second reinforcing rib 27 is provided on the side of the vertical mounting frame 21 away from the horizontal mounting frame 11. The function of the second reinforcing rib 27 is to increase the bending strength of the vertical mounting frame 21. When the horizontal mounting frame 11 of the horizontal conveying mechanism 10 drives the stacking carrier to the top, the vertical mounting frame 21 will be subjected to a large bending moment. The second reinforcing rib 27 can effectively disperse the stress caused by the bending moment, ensuring that the structural strength of the vertical mounting frame 21 meets the usage requirements and avoiding deformation or damage after long-term use.

[0046] A positioning sensor 28 is installed at the top of the vertical mounting frame 21. The positioning sensor 28 detects whether the top of the stacked magnetic carriers has risen to the preset height corresponding to the horizontal push plate 31. At the same time, the positioning sensor 28 can also detect whether there are magnetic carriers on the current horizontal mounting frame 11 that need to be misaligned. When no carrier is detected, it can send a signal to notify the operator to replenish the material in time, ensuring the continuous and stable operation of the device.

[0047] In summary, the magnetic carrier loading device and PCB processing equipment provided in this application have a simpler structure compared to existing technical solutions. The horizontal conveying mechanism has both carrier conveying and lifting functions, eliminating the need for additional carrier frames or independent lifting frames, thus reducing the number of components, lowering equipment costs and space requirements. Furthermore, the horizontal conveying mechanism can be directly connected to existing production line conveyor belts or AGVs, simplifying the carrier transfer process.

[0048] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A magnetic carrier loading device for separating and loading stacked magnetic carriers, characterized in that, It includes a horizontal conveying mechanism, a vertical lifting mechanism, and a pushing mechanism. The horizontal conveying mechanism is vertically connected to the vertical lifting mechanism, and the pushing mechanism is located above the horizontal conveying mechanism. The horizontal conveying mechanism includes a horizontal mounting frame, a conveying motor, and multiple conveying rollers. The multiple conveying rollers are arranged parallel to each other within the horizontal mounting frame and are connected to the conveying motor for transmission. The vertical lifting mechanism includes a vertical mounting frame, a misalignment blocking component, and a lifting assembly. The misalignment blocking component is disposed on the top of the vertical mounting frame and forms a stepped structure together with the top surface of the vertical mounting frame. The lifting assembly includes a lifting motor, a vertical threaded rod, and a vertical slide rail. The vertical slide rail is disposed on at least one side of the vertical mounting frame. The horizontal mounting frame is slidably connected to the vertical slide rail. The vertical threaded rod is disposed within the vertical mounting frame and is drivenly connected to the lifting motor. The horizontal mounting frame is drivenly connected to the vertical threaded rod. The pushing mechanism includes a horizontal pushing plate and a driving cylinder. The horizontal pushing plate is connected to the telescopic end of the driving cylinder. The driving cylinder can drive the horizontal pushing plate to move toward the vertical lifting mechanism. The lower edge of the horizontal pushing plate is higher than the top surface of the vertical mounting frame by no more than the thickness of a magnetic carrier. The horizontal pushing plate is used to push the topmost magnetic carrier to the stepped structure formed by the misaligned blocking member and the top surface of the vertical mounting frame.

2. The magnetic carrier feeding device according to claim 1, characterized in that, The vertical lifting mechanism also includes multiple limiting rods, which are used to keep the magnetic carrier in front of the vertical lifting mechanism. The multiple limiting rods are arranged parallel to each other in the vertical mounting frame, and the limiting rods are flush with the end face of the vertical mounting frame near the horizontal conveying mechanism.

3. The magnetic carrier feeding device according to claim 1, characterized in that, A flexible layer is provided on the end face of the misalignment blocking member facing the horizontal conveying mechanism.

4. The magnetic carrier feeding device according to claim 1, characterized in that, The horizontal conveying mechanism also includes a guide plate, which is engaged with the conveying roller along the conveying direction of the carrier.

5. The magnetic carrier feeding device according to claim 4, characterized in that, The guide plate is detachably connected to the horizontal mounting frame.

6. The magnetic carrier feeding device according to claim 1, characterized in that, The horizontal mounting frame is slidably engaged with the vertical slide rail by means of a slider. A first reinforcing rib is provided below the horizontal mounting frame. The first reinforcing rib is a right-angled triangle. The longer right-angled side of the first reinforcing rib is connected to the horizontal mounting frame, and the shorter right-angled side of the first reinforcing rib is connected to the slider.

7. The magnetic carrier feeding device according to claim 1, characterized in that, The vertical mounting frame has a second reinforcing rib on the side away from the horizontal mounting frame.

8. The magnetic carrier feeding device according to claim 1, characterized in that, A positioning sensor is installed at the top of the vertical mounting frame to detect whether the top of the stacked magnetic carriers has risen to a preset height corresponding to the horizontal push plate.

9. A PCB processing equipment, characterized in that: The device includes a magnetic carrier loading device and a conveying device. The magnetic carrier loading device is as described in any one of claims 1 to 8. The conveying device includes a three-axis gantry mechanism and an adsorption component. The adsorption component is mounted on the three-axis gantry mechanism and is used to pick up and convey a magnetic carrier from the magnetic carrier loading device.

10. The PCB processing equipment according to claim 9, characterized in that: At least two magnetic carrier loading devices are provided, and at least two magnetic carrier loading devices are arranged in parallel.

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