An SMT tray disassembly device and disassembly method

Abstract

This invention relates to the field of automated processing technology and provides an SMT reel unloading device and method. The device includes a material handling mechanism for gripping the material strip, a splitting mechanism for the material handling mechanism to extend into the reel from both sides, and a conveying mechanism for moving the material handling mechanism closer to or away from the reel. The device also includes a cutting mechanism for cutting the material strip and a winding mechanism for winding up the empty section of the material strip, the cutting and winding mechanisms being sequentially arranged along the movement trajectory of the conveying mechanism. Furthermore, the device includes a first driving mechanism for moving the winding mechanism into or out of the travel range of the conveying mechanism. This invention can quickly separate the reel, pull out the empty section at the beginning of the material strip for unloading, and complete the cutting of the empty section. It solves the problems of high error rate and low efficiency in manual unloading in the prior art.

Description

Technical Field

[0001] This invention belongs to the field of automated processing technology, and in particular relates to an SMT tray unloading device and unloading method. Background Technology

[0002] SMT (Surface Mount Technology), also known as surface mount technology, is currently the most popular technology and process in the electronics assembly industry. It compresses traditional electronic components, reducing their size and weight, thereby achieving high density, high reliability, miniaturization, low cost, and automation in electronic product assembly. Currently, the unloading of SMT reels is mostly done manually, requiring the empty section of the tape head to be cut off to facilitate the next process. The SMT reel consists of two reels holding the wound tape in the middle. Due to the cumbersome unloading process, manual unloading is prone to tape scattering, requiring high skill from SMT operators. When using machines to unload, the reel can be fixed on a spindle to control the feeding and receiving of materials, which can prevent tape scattering, but it is difficult for the robotic arm to reach into the SMT reel to grab the lead and remove the tape. Modern development demands increasingly higher levels of automation in the manufacturing industry, creating an urgent need for unloading equipment for SMT reels to solve the above problems. Summary of the Invention

[0003] The purpose of this invention is to provide an SMT tray unloading device and unloading method, which aims to solve the problems that existing SMT tray unloading methods are difficult to automate, mostly rely on manual operation, and have high error rates and low efficiency.

[0004] On one hand, the present invention provides an SMT reel unloading device, the device including a material picking mechanism for gripping the material strip, a spreading mechanism for separating the reels on both sides of the reel so that the material picking mechanism can extend into the reel, and a conveying mechanism for driving the material picking mechanism to move closer to or away from the reel; the device also includes a material cutting mechanism for cutting the material strip and a material winding mechanism for winding up the empty section of the material strip, the material cutting mechanism and the material winding mechanism being arranged sequentially along the movement trajectory of the conveying mechanism; the device also includes a first driving mechanism for driving the material winding mechanism into or out of the travel range of the conveying mechanism.

[0005] The SMT tray unloading device of the present invention includes a spreading mechanism comprising two spreading claws extending horizontally into the tray; a picking mechanism having a picking position; the two spreading claws being located on the left and right sides of the picking position, and the two spreading claws being laterally slidably mounted on a mounting plate; the mounting plate also having a first elastic member connecting the two spreading claws to bring them closer together, and a separating component separating the two spreading claws to move them away from each other; the spreading mechanism further includes a second elastic member laterally pushing the mounting plate closer to the tray; the spreading mechanism is fixedly connected to the movable end of the transfer mechanism.

[0006] The SMT tray unloading device of the present invention includes a material picking mechanism comprising an upper gripper and a lower gripper corresponding to the material picking position; a gap is formed between the two spreading grippers to accommodate the upper gripper and the lower gripper; the upper gripper is fixed on the material picking frame, and the end of the lower gripper away from the material picking position is rotatably connected to the material picking frame; the upper gripper is provided with a vacuum suction port for picking up the material strip; the middle part of the lower gripper is rotatably connected to a connecting rod, and the other end of the connecting rod is rotatably connected to a follower; the follower is horizontally arranged and the end away from the connecting rod is rotatably connected to the material picking frame, and a strip-shaped through hole is laterally opened in the middle part of the follower; the material picking mechanism further includes a moving shaft passing through the strip-shaped through hole and a first linear drive assembly for driving the moving shaft to move up and down.

[0007] The SMT tray unloading device of the present invention includes a transfer mechanism comprising a vertically arranged fixed frame and a second linear drive assembly for driving the fixed frame to move laterally; a mounting plate and a picking rack are respectively arranged on the left and right sides of the fixed frame; the mounting plate is laterally slidably arranged on the fixed frame; the second elastic member is laterally arranged, and the two ends of the second elastic member are respectively connected to the mounting plate and the fixed frame.

[0008] The SMT tray unloading device of the present invention includes an inspection mechanism on the movement trajectory of the transfer mechanism for checking whether there is material tape at the cutting mechanism; the inspection mechanism is located between the cutting mechanism and the winding mechanism; the inspection mechanism includes an upper inspection seat and a lower inspection seat that are configured to cooperate, and a third linear drive assembly for driving the lower inspection seat to move vertically closer to or away from the upper inspection seat; the lower inspection seat is provided with a through groove for feeding material tape and a guide portion for guiding material tape into the through groove; a first sensor for detecting whether there is material tape in the through groove is also provided at the through groove; a second sensor for detecting whether there is material tape below the through groove is also provided at the lower end of the lower inspection seat; the third linear drive assembly and the upper inspection seat are both fixed on an inspection frame, and the inspection frame is fixedly connected to the movable terminal of the first drive mechanism.

[0009] The SMT spool unloading device of the present invention includes a winding mechanism comprising a vertically arranged baffle, a turntable transversely inserted in the baffle, and a winding rod extending vertically into the moving range of the spool; the baffle is provided with a clearance hole to avoid the turntable; there are two winding rods located on the upper and lower sides of the spool respectively, and the two winding rods are eccentrically arranged on the turntable; the winding mechanism further includes a first rotating component that drives the turntable to rotate along the movement direction of the transfer mechanism, and a fourth linear drive component that drives the turntable to horizontally retract or extend into the clearance hole.

[0010] The SMT tray unloading device of the present invention includes two spreading claws that are laterally slidably mounted on a mounting plate via extensions; the separation component includes a pusher slidably mounted on the mounting plate and a fifth linear drive component that drives the pusher to move closer to or away from the two extensions, and the proximal ends of the two extensions are provided with guide slopes corresponding to the pusher; the mounting plate is also longitudinally rotatably provided with a follower shaft that is close to the outer side of the tray.

[0011] The SMT tray unloading device of the present invention further includes a feeding mechanism that horizontally conveys the material strip of the roll mechanism along the movement trajectory of the transfer mechanism, and a second driving mechanism that drives the feeding mechanism and the cutting mechanism to synchronously enter or exit the travel range of the transfer mechanism; the cutting mechanism includes two shearing blades symmetrically arranged on the upper and lower sides of the material strip, and the two shearing blades are longitudinally rotatably connected with a fixed axis; the cutting mechanism further includes a sixth linear driving assembly that drives the two shearing blades to open or close; the feeding mechanism includes a horizontally arranged feeding seat, and the feeding seat has a guide groove for the material strip to pass through; a ratchet that cooperates with the material strip drive is provided at the guide groove, and the feeding mechanism further includes a second rotating assembly that drives the ratchet to rotate along the movement direction of the transfer mechanism.

[0012] The SMT tray unloading device of the present invention further includes a visual recognition mechanism for determining the cutting position of the material strip, and a photoelectric detection mechanism corresponding to the guide groove; the feeding mechanism, the visual recognition mechanism and the cutting mechanism are arranged sequentially along the movement trajectory of the transfer mechanism.

[0013] On the other hand, the present invention also provides a method for unloading SMT trays, comprising the following steps:

[0014] The transfer mechanism drives the spreading mechanism to approach the material tray, so that the two spreading claws extend into the material tray;

[0015] The fifth linear drive component drives the pusher to move forward, and the pusher pushes the two spreading claws apart along the guide slope, so that the two spreading claws spread open the reels on both sides of the material tray;

[0016] The transfer mechanism continues to drive the spreading mechanism closer to the material tray until the material strip is located at the material picking position of the picking mechanism;

[0017] The material handling mechanism clamps the lead of the material handling belt;

[0018] The conveying mechanism drives the picking mechanism and the spreading mechanism away from the material tray until the end of the stroke; the two spreading claws retract from the material tray, and the picking mechanism clamps the guide of the material strip and pulls the material strip horizontally out of the material tray;

[0019] The first driving mechanism drives the coil mechanism and the inspection mechanism into the travel range of the transfer mechanism;

[0020] The third linear drive assembly drives the lower inspection seat to move vertically close to the upper inspection seat. After it moves into position, the first sensor and the second sensor determine whether there is material strip in the through groove. If so, the second drive mechanism drives the feeding mechanism and the cutting mechanism into the stroke range of the transfer mechanism.

[0021] The photoelectric detection mechanism detects whether there is a material strip in the guide groove; if so, the second rotating component drives the ratchet to rotate and conveys the material strip; at the same time, the first rotating component drives the turntable to rotate, which drives the two winding rods to wind up the material strip, and the material picking mechanism releases the material strip.

[0022] The visual recognition mechanism identifies the empty section of the strip and determines the cutting position; the sixth linear drive assembly drives the two shearing blades to close and cut the strip.

[0023] The fourth linear drive assembly drives the turntable away from the baffle, and the winding rod retracts from the clearance hole along with the turntable; the empty section of the wound strip is collected after falling through the baffle.

[0024] The beneficial effects of this invention are as follows: This invention uses a spreading mechanism to spread the two reels on both sides of the trolley to a suitable distance, allowing the picking mechanism to smoothly extend into the trolley to pick up the head of the strip; after the strip is picked up, the transfer mechanism drives the picking mechanism away from the trolley and pulls the strip horizontally out of the trolley; the first drive mechanism drives the winding mechanism into the stroke range of the transfer mechanism and begins to wind up the strip, at which time the wound strip is the empty section at the head of the strip; when wound to a suitable position, the cutting mechanism cuts the strip, completing the unloading step of the SMT trolley; this invention can quickly separate the trolley, pull out the empty section at the head of the strip for unloading, and complete the cutting of the empty section; it solves the problems of high error rate and low efficiency when manually unloading in the prior art. Attached Figure Description

[0025] Figure 1This is a schematic diagram of the overall structure of the SMT tray unloading device provided by the present invention;

[0026] Figure 2 This is a schematic diagram showing the relationship between the opening mechanism and the picking mechanism of the SMT tray unloading device provided by the present invention;

[0027] Figure 3 This is a bottom view of the spreading mechanism of the SMT tray unloading device provided by the present invention.

[0028] Figure 4 This is a cross-sectional schematic diagram of the follower component of the SMT tray unloading device provided by the present invention;

[0029] Figure 5 This is a partial cross-sectional view of the material handling mechanism of the SMT tray unloading device provided by the present invention;

[0030] Figure 6 This is a schematic diagram showing the relationship between the feeding mechanism and the winding mechanism of the SMT tray unloading device provided by the present invention;

[0031] Figure 7 This is a partially enlarged view of the inspection mechanism of the SMT tray unloading device provided by the present invention;

[0032] Figure 8 This is a schematic diagram of the cutting mechanism of the SMT tray unloading device provided by the present invention;

[0033] In the diagram: 1. Material tray; 2. Material handling mechanism; 21. Upper gripper; 210. Vacuum suction port; 22. Lower gripper; 23. Material handling frame; 24. Connecting rod; 25. Follower; 250. Strip-shaped through hole; 26. Moving shaft; 27. First linear drive assembly; 3. Spreading mechanism; 31. Spreading gripper; 310. Extension; 310a. Guide slope; 32. Mounting plate; 33. First elastic element; 34. Second elastic element; 35. Pushing element; 36. Fifth linear drive assembly; 37. Follower shaft; 4. Transfer mechanism; 41. Fixing frame; 42. Second linear drive assembly; 5. Cutting mechanism; 51. Shearing blade; 52. Sixth linear drive assembly; 5 20. Push shaft; 6. Winding mechanism; 61. Baffle; 610. Clearance hole; 62. Turntable; 63. Winding rod; 64. First rotating assembly; 65. Fourth linear drive assembly; 7. First drive mechanism; 8. Inspection mechanism; 81. Upper inspection seat; 82. Lower inspection seat; 820. Through slot; 821. Guide part; 822. First sensor; 823. Second sensor; 83. Third linear drive assembly; 84. Inspection frame; 9. Feeding mechanism; 91. Feeding seat; 910. Guide groove; 92. Ratchet; 93. Second rotating assembly; 10. Second drive mechanism; 11. Vision recognition mechanism; 12. Photoelectric detection mechanism; 13. Picking position. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0035] The specific implementation of the present invention will be described in detail below with reference to specific embodiments:

[0036] Example 1:

[0037] The SMT tray unloading device provided in Embodiment 1 of the present invention, such as Figure 1-8 As shown, the device includes a material-grabbing mechanism 2 for gripping the material strip, a spreading mechanism 3 for the material-grabbing mechanism 2 to extend into the material tray 1 from both sides of the separating tray 1, and a conveying mechanism 4 for driving the material-grabbing mechanism 2 closer to or away from the material tray 1; the device also includes a material-cutting mechanism 5 for cutting the material strip and a material-winding mechanism 6 for winding up the empty section of the material strip, the material-cutting mechanism 5 and the material-winding mechanism 6 being arranged sequentially along the movement trajectory of the conveying mechanism 4; the device also includes a first drive mechanism 7 for driving the material-winding mechanism 6 into or out of the travel range of the conveying mechanism 4.

[0038] In this embodiment, a rotating shaft is fixed on the material tray 1, which controls the rotation of the material tray 1, thereby cooperating with the device to take in and unload the material strip; the spreading mechanism 3 separates the reels on both sides of the material tray 1. The reels are made of plastic and can undergo elastic deformation; spreading the two reels allows the material picking mechanism 2 to smoothly extend into the two reels, i.e., inside the material tray 1; the head of the material strip is generally provided with a guide for easy picking up of the material strip. After the material picking mechanism 2 picks up the guide, it pulls out the guide to pull out the material strip together; after the material picking mechanism 2 clamps the guide of the material strip, the conveying mechanism 4 drives the material picking mechanism 2 to withdraw from the material tray 1 and pull it out horizontally. The material strip is pulled out smoothly by the rotating shaft on the material tray 1. After the transfer mechanism 4 moves from one end to the other, the first drive mechanism 7 drives the winding mechanism 6 forward and enters the movement trajectory of the transfer mechanism 4. At this time, the horizontally straightened material strip also falls into the working range of the winding mechanism 6. The material picking mechanism 2 releases the material strip, and the winding mechanism 6 can wind up the material strip. The wound part is the empty material segment. After the winding mechanism 6 has collected all the empty material segments at the head of the material strip, the cutting mechanism 5 will cut the material strip along the empty material segment. The material strip part wound up by the winding mechanism 6 is waste material, which is convenient for centralized processing.

[0039] In this embodiment, the two reels on both sides of the trolley are spread apart to a suitable distance by the spreading mechanism, so that the picking mechanism can smoothly extend into the trolley to pick up the head of the strip. After the strip is picked up, the transfer mechanism drives the picking mechanism away from the trolley and pulls the strip horizontally out of the trolley. The first drive mechanism drives the winding mechanism into the stroke range of the transfer mechanism and begins to wind up the strip. At this time, the wound strip is the empty section at the head of the strip. When the strip is wound to a suitable position, the cutting mechanism cuts the strip, completing the unloading step of the SMT trolley. This invention can quickly separate the trolley, pull out the empty section at the head of the strip for unloading, and complete the cutting of the empty section. It solves the problems of high error rate and low efficiency when manually unloading in the prior art.

[0040] Preferably, the spreading mechanism 3 includes two spreading claws 31 that extend horizontally into the material tray 1; the material picking mechanism 2 is provided with a material picking position 13; the two spreading claws 31 are respectively located on the left and right sides of the material picking position 13, and the two spreading claws 31 are laterally slidably disposed on the mounting plate 32; the mounting plate 32 is also provided with a first elastic element 33 that connects the two spreading claws 31 to bring them closer together, and a separation component that separates the two spreading claws 31 to move them away from each other; the spreading mechanism 3 also includes a second elastic element 34 that laterally pushes the mounting plate 32 closer to the material tray 1; the spreading mechanism 3 is fixedly connected to the movable end of the transfer mechanism 4; in the initial state, the two spreading claws 31 are in a closed state and can extend into the gap between the reels on both sides of the material tray 1; after the two spreading claws 31 extend into the material tray 1, the two spreading claws 31 open, spreading the material tray 1 from the inside out; the two spreading claws 31 are laterally slidably disposed on the mounting plate 32 through a slide rail, ensuring that the spreading claws 31 Operational stability; the first elastic element 33 allows the opening claw 31 to automatically close and reset after opening; the separation component provides the opening power for the opening claw 31; during material picking, in order to facilitate the material picking mechanism 2 to find the head of the material strip, the rotating shaft will drive the material tray 1 to rotate, that is, after the opening claw 31 opens the material tray 1, the material tray 1 is in a rotating state; the second elastic element 34 enables the mounting plate 32 to approach the material tray 1, thereby driving the two opening claws 31 to always be close to the material tray 1 in the opening process, avoiding the situation where the opening claws 31 disengage during the rotation of the material tray 1; in this embodiment, both the first elastic element 33 and the second elastic element 34 are tension springs; the opening mechanism 3 and the material picking mechanism 2 are both fixedly connected to the movable end of the transfer mechanism 4, and the moving mechanism can simultaneously drive the opening mechanism 3 and the material picking mechanism 2 to approach or move away from the material tray 1, and the synchronous movement of the opening mechanism 3 and the material picking mechanism 2 facilitates the cooperation between the two.

[0041] Preferably, the material handling mechanism 2 includes an upper gripper 21 and a lower gripper 22 corresponding to the material handling position 13; a gap is formed between the two spreading claws 31 to accommodate the upper gripper 21 and the lower gripper 22; the upper gripper 21 is fixed on the material handling frame 23, and the end of the lower gripper 22 facing away from the material handling position 13 is rotatably connected to the material handling frame 23; the upper gripper 21 is provided with a vacuum suction port 210 for absorbing the material belt; the middle part of the lower gripper 22 is rotatably connected to the connecting rod 24, and the other end of the connecting rod 24 is rotatably connected to the follower 25; the follower 25 is horizontally arranged and the end facing away from the connecting rod 24 is rotatably connected to the material handling frame 23. The moving part 25 has a transversely formed strip-shaped through hole 250 in the middle; the material picking mechanism 2 also includes a moving shaft 26 passing through the strip-shaped through hole 250 and a first linear drive assembly 27 that drives the moving shaft 26 to move up and down; the upper jaw 21 and the lower jaw 22 cooperate to form a picking position 13, and the two opening jaws 31 are located on the left and right sides of the upper jaw 21 and the lower jaw 22. After the two opening jaws 31 open, the upper jaw 21 and the lower jaw 22 can pick up the material strip; in this embodiment, the opening part of the two opening jaws 31 that contacts the material tray 1 is located on the side of the upper jaw 21 and the lower jaw 22 closer to the material tray 1. When closed, the expansion part blocks the material picking position 13; this arrangement makes the structure more compact, and the material picking mechanism 2 and the expansion mechanism 3 do not need to avoid each other when working. Only when the expansion mechanism 3 expands the material tray 1, that is, the two expansion claws 31 open, can the material picking mechanism 2 pick up the material, ensuring that the expansion and picking steps are carried out smoothly in sequence; the upper claw 21 is fixedly set, and the lower claw 22 is movable; the vacuum suction port 210 of the upper claw 21 determines whether the guide of the material strip has been sucked up by detecting the pressure change. If the guide has been sucked up, the lower claw 22 moves upward and closes with the upper claw 21 to clamp the material strip; horizontal setting The two ends of the follower 25 are rotatably connected to the material picker 23 and the connecting rod 24, respectively. Since the moving shaft 26 passes through the strip-shaped through hole 250 of the follower 25, when the first linear drive assembly 27 drives the moving shaft 26 to move upward, the moving shaft 26 will move along the strip-shaped through hole 250 and drive the follower 25 to deflect upward. The follower 25 drives the connecting rod 24 upward, and the connecting rod 24 drives the lower gripper 22 upward, realizing the closure of the upper gripper 21 and the lower gripper 22. In this embodiment, the first linear drive assembly 27 is an electric cylinder or a linear module, which can drive the moving shaft 26 to make linear motion in the vertical direction.

[0042] Preferably, the transfer mechanism 4 includes a vertically arranged fixed frame 41 and a second linear drive assembly 42 that drives the fixed frame 41 to move laterally; the mounting plate 32 and the picking rack 23 are respectively arranged on the left and right sides of the fixed frame 41; the mounting plate 32 is laterally slidably arranged on the fixed frame 41; the second elastic member 34 is laterally arranged, and the two ends of the second elastic member 34 are respectively connected to the mounting plate 32 and the fixed frame 41; in this embodiment, the fixed frame 41 is used to install the spreading mechanism 3 and the picking mechanism 2; the mounting plate 32 is slidably arranged on the fixed frame 41 through a horizontally arranged slide rail; the second linear drive assembly 42 includes a helical gear, a helical rack that cooperates with the helical gear, and a motor that drives the helical gear to rotate; when the motor rotates, the helical gear will move along the helical rack, thereby driving the fixed frame 41 to move. In this embodiment, a slide rail is also added to the fixed frame 41 to make the movement of the fixed frame 41 more stable.

[0043] Preferably, the movement trajectory of the transfer mechanism 4 is provided with an inspection mechanism 8 for checking whether there is material strip at the cutting mechanism 5; the inspection mechanism 8 is located between the cutting mechanism 5 and the winding mechanism 6; the inspection mechanism 8 includes an upper inspection seat 81 and a lower inspection seat 82 that are configured to cooperate, and a third linear drive assembly 83 that drives the lower inspection seat 82 to move vertically closer to or away from the upper inspection seat 81; the lower inspection seat 82 is provided with a through groove 820 for the material strip to pass through and a guide part 821 for guiding the material strip into the through groove; a first sensor 822 for detecting whether there is material strip in the through groove is also provided at the through groove 820; a detection through groove is also provided at the lower end of the lower inspection seat 82. Is there a second sensor 823 for the material strip below 82? The third linear drive assembly 83 and the upper inspection seat 81 are both fixed on the inspection frame 84, and the inspection frame 84 is fixedly connected to the movable terminal of the first drive mechanism 7. The lead of the material strip is glued to the material strip. When the material taking mechanism 2 pulls out the lead, the material strip may fall off the lead. Since the material strip itself has a certain weight, it will droop after falling off. The inspection mechanism 8 is set to check whether the material strip is in place and prevent the material strip from drooping and causing the cutting mechanism 5 to cut empty. The first drive mechanism 7 can synchronously drive the inspection mechanism 8 and the winding mechanism 6 into the movement trajectory of the transfer mechanism 4. Initial state In this state, the lower inspection seat 82 is separated from the upper inspection seat 81, and the lower inspection seat 82 is at the bottom of its stroke. If the material strip droops naturally, the lower inspection seat 82 can lift the drooping material strip again during its upward movement, allowing the material strip to re-enter the through groove 820 along the guide portion 821. After the lower inspection seat 82 moves upward to its final position, the second sensor 823 checks whether there is any naturally drooping material strip below the through groove. When the lower inspection seat 82 and the upper inspection seat 81 are closed, they can position the material strip. The first sensor 822 detects whether there is any material strip in the through groove 820. In this embodiment, a rocker arm is rotatably provided corresponding to the through groove 820. If the through groove... There is only a guide without material strip in 820, and the weight of the guide is not enough to push the swing arm; if the material strip is in the through groove 820, it will push the swing arm to deflect. The first sensor 822 can determine whether there is material strip in the through groove 820 by detecting whether the swing arm deflects; the setting of the inspection mechanism 8 enhances the practicality of the whole device and greatly avoids the situation that the material strip may detach from the guide during the production process, resulting in incomplete cutting of the material strip; in this embodiment, the third linear drive component 83 is an electric cylinder or a linear module, which can drive the lower inspection seat 82 to make a linear movement in the vertical direction; in order to ensure the stability of the movement, the lower inspection seat 82 can be set on a slide rail.

[0044] Preferably, the winding mechanism 6 includes a vertically arranged baffle 61, a turntable 62 transversely inserted in the baffle 61, and a winding rod 63 extending vertically into the moving range of the material strip; the baffle 61 has a clearance hole 610 for avoiding the turntable 62; there are two winding rods 63 located on the upper and lower sides of the material strip, respectively, and the two winding rods 63 are eccentrically arranged on the turntable 62; the winding mechanism 6 also includes a first rotating component 64 that drives the turntable 62 to rotate along the movement direction of the transfer mechanism 4, and a fourth linear drive component 65 that drives the turntable 62 to horizontally retract or extend into the clearance hole 610; in this embodiment, the winding rod 63 is eccentrically arranged. On the turntable 62, during the rotation of the turntable 62, the deflected winding rod 63 can hook the material strip, and after multiple rotations, it can be wound up and stored. In some other embodiments, multiple winding rods 63 can also be provided. The first rotating component 64 is a rotary motor. After the empty material section of the material strip is collected, the fourth linear drive component 65 drives the turntable 62 and the winding rod 63 to retract from the clearance hole 610 together. After retracting to the baffle 61, the wound material strip is blocked by the baffle 61 and falls down. Waste materials can be collected in a concentrated manner below the baffle 61. The fourth linear drive component 65 is an electric cylinder or a linear module, which can drive the turntable 62 to make linear movements.

[0045] Preferably, both opening claws 31 are laterally slidably mounted on the mounting plate 32 via extensions 310; the separation assembly includes a pusher 35 slidably mounted on the mounting plate 32 and a fifth linear drive assembly 36 that drives the pusher 35 to approach or move away from the two extensions 310, with guide slopes 310a provided at the proximal ends of the two extensions 310 corresponding to the pusher 35; a follower shaft 37 is also longitudinally rotatably mounted on the mounting plate 32, closely attached to the outer side of the tray 1; when the two opening claws 31 are closed, a gap is left between the two extensions 310, allowing the pusher 35 to move along the guide slopes 310a. 0a enters the gap, thereby separating the two extensions 310; the fifth linear drive assembly 36 is an electric cylinder or linear module, which can drive the pusher 35 to make linear movements in the horizontal direction; in this embodiment, the pusher 35 adopts a bearing, and the bearing is used to open the extension 310 in order to reduce the wear of the instrument; in this embodiment, the follower shaft 37 is set horizontally; when the tray 1 rotates, the follower shaft 37 close to the outside of the tray 1 rotates accordingly. The follower shaft 37 cooperates with the opening claw 31 inside the tray 1 outside the tray 1, which can make the opening more stable, and at the same time will not hinder the rotation of the tray 1.

[0046] Preferably, the device further includes a feeding mechanism 9 that horizontally conveys the material belt along the movement trajectory of the transfer mechanism 4 to the winding mechanism 6, and a second drive mechanism 10 that drives the feeding mechanism 9 and the cutting mechanism 5 to synchronously enter or exit the travel range of the transfer mechanism 4; the cutting mechanism 5 includes two shearing blades 51 symmetrically arranged on the upper and lower sides of the material belt, and the two shearing blades 51 are connected in a fixed axis longitudinal rotation; the cutting mechanism 5 also includes a sixth linear drive assembly 52 that drives the two shearing blades 51 to open or close; the feeding mechanism 9 includes a horizontally arranged feeding seat 91, and a guide groove 910 for the material belt to pass through is provided on the feeding seat 91; a ratchet 92 that cooperates with the material belt drive is provided at the guide groove 910, and the feeding mechanism 9 also includes a second drive mechanism 10 that drives the ratchet 92 to rotate along the movement direction of the transfer mechanism 4. Rotating component 93; In this device, the winding mechanism 6 winds up the material strip, the material tray 1 rotates to release the material strip, and the feeding mechanism 9 plays an auxiliary role in conveying the material strip between the two, making the movement of the material strip more stable; the lower end of the slide rail of the feeding seat 91 is slotted, and there is a ratchet 92 in the slot. When the ratchet 92 rotates, it relies on friction to transmit the material strip on the slide rail; the second rotating component 93 is a rotary motor; the two shearing blades 51 in the cutting mechanism 5 are scissor-shaped. When the two shearing blades 51 are open, the material strip can pass through normally, and when they are closed, they can cut the material strip; In this embodiment, the sixth linear drive component 52 includes a push shaft 520 that pushes the two shearing blades 51 to close and an electric cylinder that drives the two push shafts 520 to slide laterally. There are two push shafts 520, which are arranged opposite to each other on the outside of the two shearing blades 51.

[0047] Preferably, the device further includes a visual recognition mechanism 11 for determining the cutting position of the material strip, and a photoelectric detection mechanism 12 corresponding to the guide groove 910; the feeding mechanism 9, the visual recognition mechanism 11, and the cutting mechanism 5 are arranged sequentially along the movement trajectory of the transfer mechanism 4; in this embodiment, the visual recognition mechanism 11 is used to determine the empty material situation on the material strip. When the empty material segment is about to be completely wound up, the visual recognition mechanism 11 will determine the appropriate cutting range on the material strip, and the cutting mechanism 5 can accurately cut the material strip according to this cutting range; the photoelectric detection mechanism 12 is used to detect whether there is material strip in the guide groove 910 of the feeding mechanism 9, to ensure that the unloading process can proceed smoothly; the feeding mechanism 9, the visual recognition mechanism 11, and the cutting mechanism 5 are arranged sequentially to ensure that the cutting mechanism 5 can cut the material strip and cut at the appropriate position; in this embodiment, the feeding mechanism 9, the visual recognition mechanism 11, the cutting mechanism 5, the inspection mechanism 8, and the winding mechanism 6 are arranged sequentially.

[0048] Example 2:

[0049] The difference between Embodiment 2 and Embodiment 1 is that Embodiment 2 also provides an SMT tray unloading method, which is applied to the SMT tray unloading device provided in Embodiment 1, and includes the following process:

[0050] The transfer mechanism 4 drives the spreading mechanism 3 to approach the material tray 1, so that the two spreading claws 31 extend into the inside of the material tray 1;

[0051] The fifth linear drive assembly 36 drives the pusher 35 to move forward. The pusher 35 pushes the two opening claws 31 apart along the guide slope 310a, so that the two opening claws 31 open the reels on both sides of the material tray 1.

[0052] The transfer mechanism 4 continues to drive the spreading mechanism 3 closer to the material tray 1 until the material strip is located on the material picking position 13 of the picking mechanism 2;

[0053] The material handling mechanism 2 clamps the guide head of the material handling belt;

[0054] The transfer mechanism 4 drives the material picking mechanism 2 and the spreading mechanism 3 away from the material tray 1 until the end of the stroke; the two spreading claws 31 retract from the material tray 1, and the material picking mechanism 2 clamps the guide of the material belt and pulls the material belt horizontally out of the material tray 1;

[0055] The first drive mechanism 7 drives the coil mechanism 6 and the inspection mechanism 8 into the stroke range of the transfer mechanism 4;

[0056] The third linear drive assembly 83 drives the lower inspection seat 82 to move vertically close to the upper inspection seat 81. After it moves into place, the first sensor 822 and the second sensor 823 determine whether there is material strip in the through groove 820. If so, the second drive mechanism 10 drives the feeding mechanism 9 and the cutting mechanism 5 to enter the stroke range of the transfer mechanism 4.

[0057] The photoelectric detection mechanism 12 detects whether there is a material strip in the guide groove 910; if so, the second rotating component 93 drives the ratchet 92 to rotate and convey the material strip; at the same time, the first rotating component 64 drives the turntable 62 to rotate, which drives the two winding rods 63 to wind up the material strip, and the material picking mechanism 2 releases the material strip.

[0058] The visual recognition mechanism 11 identifies the empty section of the material strip and determines the cutting position; the sixth linear drive assembly 52 drives the two shearing blades 51 to close and cut the material strip;

[0059] The fourth linear drive assembly 65 drives the turntable 62 away from the baffle 61, and the winding rod 63 retracts from the clearance hole 610 along with the turntable 62; the empty section of the wound material strip is collected after falling off and being blocked by the baffle 61.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An SMT magazine de-stocking device, characterized in that, The device includes a material-grabbing mechanism for gripping the material strip, a spreading mechanism for extending the material-grabbing mechanism into the material tray via reels on both sides of the material tray, and a conveying mechanism for moving the material-grabbing mechanism closer to or away from the material tray; the device also includes a material-cutting mechanism for cutting the material strip and a material-winding mechanism for winding up empty sections of the material strip, the material-cutting mechanism and the material-winding mechanism being arranged sequentially along the movement trajectory of the conveying mechanism; the device also includes a first driving mechanism for moving the material-winding mechanism into or out of the travel range of the conveying mechanism; the spreading mechanism includes two spreading claws extending horizontally into the material tray; the material-grabbing mechanism is provided with a material-grabbing position; the two spreading claws are respectively located on the left and right sides of the material-grabbing position, and the two spreading claws are laterally slidably mounted on a mounting plate; the mounting plate is also provided with a first elastic element connecting the two spreading claws to bring them closer together, and a separating component separating the two spreading claws to move them away from each other; the spreading mechanism also includes a second elastic element laterally pushing the mounting plate closer to the material tray; the spreading mechanism is fixedly connected to the movable end of the conveying mechanism. The movement trajectory of the transfer mechanism is equipped with an inspection mechanism for checking whether there is material strip at the cutting mechanism; the inspection mechanism is located between the cutting mechanism and the winding mechanism; the inspection mechanism includes an upper inspection seat and a lower inspection seat that are configured to cooperate, and a third linear drive assembly that drives the lower inspection seat to move vertically closer to or away from the upper inspection seat; the lower inspection seat is provided with a through groove for feeding the material strip and a guide portion for guiding the material strip into the through groove; a first sensor for detecting whether there is material strip in the through groove is also provided at the through groove; a second sensor for detecting whether there is material strip below the through groove is also provided at the lower end of the lower inspection seat; the third linear drive assembly and the upper inspection seat are both fixed on an inspection frame, and the inspection frame is fixedly connected to the movable terminal of the first drive mechanism.

2. The apparatus of claim 1, wherein, The material handling mechanism includes an upper gripper and a lower gripper that are configured to cooperate with the material handling position; a gap is formed between the two spreading grippers to accommodate the upper gripper and the lower gripper; the upper gripper is fixed on the material handling frame, and the end of the lower gripper facing away from the material handling position is rotatably connected to the material handling frame; the upper gripper is provided with a vacuum suction port for absorbing the material belt; the middle part of the lower gripper is rotatably connected to a connecting rod, and the other end of the connecting rod is rotatably connected to a follower; the follower is horizontally arranged and the end facing away from the connecting rod is rotatably connected to the material handling frame, and a strip-shaped through hole is transversely opened in the middle part of the follower; the material handling mechanism also includes a moving shaft passing through the strip-shaped through hole and a first linear drive assembly that drives the moving shaft to move up and down.

3. The apparatus of claim 2, wherein, The transfer mechanism includes a vertically arranged fixed frame and a second linear drive assembly that drives the fixed frame to move laterally; the mounting plate and the material picker are respectively arranged on the left and right sides of the fixed frame; the mounting plate is laterally slidably arranged on the fixed frame; the second elastic member is arranged laterally, and the two ends of the second elastic member are respectively connected to the mounting plate and the fixed frame.

4. The apparatus of claim 1, wherein, The winding mechanism includes a vertically arranged baffle, a turntable horizontally inserted in the baffle, and a winding rod extending vertically into the moving range of the material strip; the baffle has a clearance hole to avoid the turntable; there are two winding rods located on the upper and lower sides of the material strip respectively, and the two winding rods are eccentrically arranged on the turntable; the winding mechanism also includes a first rotating component that drives the turntable to rotate along the movement direction of the transfer mechanism, and a fourth linear drive component that drives the turntable to horizontally retract or extend into the clearance hole.

5. The apparatus of claim 4, wherein, Both of the aforementioned opening claws are laterally slidably mounted on the mounting plate via extensions; the separation assembly includes a pusher slidably mounted on the mounting plate and a fifth linear drive assembly that drives the pusher to approach or move away from the two aforementioned extensions, with guide slopes provided at the proximal ends of the two aforementioned extensions corresponding to the pusher; a follower shaft that is longitudinally rotatably mounted on the mounting plate and closely attached to the outer side of the material tray is also provided.

6. The apparatus of claim 5, wherein, The device further includes a feeding mechanism that horizontally conveys the material belt of the roll mechanism along the movement trajectory of the transfer mechanism, and a second driving mechanism that drives the feeding mechanism and the cutting mechanism to synchronously enter or exit the travel range of the transfer mechanism; the cutting mechanism includes two shearing blades symmetrically arranged on the upper and lower sides of the material belt, and the two shearing blades are longitudinally rotatably connected with a fixed axis; the cutting mechanism further includes a sixth linear drive assembly that drives the two shearing blades to open or close; the feeding mechanism includes a horizontally arranged feeding seat, and the feeding seat has a guide groove for the material belt to pass through; a ratchet that cooperates with the material belt drive is provided at the guide groove, and the feeding mechanism further includes a second rotating assembly that drives the ratchet to rotate along the movement direction of the transfer mechanism.

7. The apparatus of claim 6, wherein, The device also includes a visual recognition mechanism for determining the cutting position of the strip, and a photoelectric detection mechanism corresponding to the guide groove; the feeding mechanism, the visual recognition mechanism and the cutting mechanism are arranged sequentially along the movement trajectory of the transfer mechanism.

8. An SMT magazine de-stocking method, characterized by, Based on the SMT tray unloading device according to claim 7, the SMT tray unloading method includes: The transfer mechanism drives the spreading mechanism to approach the material tray, so that the two spreading claws extend into the material tray; The fifth linear drive component drives the pusher to move forward, and the pusher pushes the two spreading claws apart along the guide slope, so that the two spreading claws spread open the reels on both sides of the material tray; The transfer mechanism continues to drive the spreading mechanism closer to the material tray until the material strip is located at the material picking position of the picking mechanism; The material handling mechanism clamps the lead of the material handling belt; The conveying mechanism drives the picking mechanism and the spreading mechanism away from the material tray until the end of the stroke; the two spreading claws retract from the material tray, and the picking mechanism clamps the guide of the material strip and pulls the material strip horizontally out of the material tray; The first driving mechanism drives the coil mechanism and the inspection mechanism into the travel range of the transfer mechanism; The third linear drive assembly drives the lower inspection seat to move vertically close to the upper inspection seat. After it moves into position, the first sensor and the second sensor determine whether there is material strip in the through groove. If so, the second drive mechanism drives the feeding mechanism and the cutting mechanism into the stroke range of the transfer mechanism. The photoelectric detection mechanism detects whether there is a material strip in the guide groove; if so, the second rotating component drives the ratchet to rotate and conveys the material strip; at the same time, the first rotating component drives the turntable to rotate, which drives the two winding rods to wind up the material strip, and the material picking mechanism releases the material strip. The visual recognition mechanism identifies the empty section of the strip and determines the cutting position; the sixth linear drive assembly drives the two shearing blades to close and cut the strip. The fourth linear drive assembly drives the turntable away from the baffle, and the winding rod retracts from the clearance hole along with the turntable; the empty section of the wound strip is collected after falling through the baffle.

Images