Flexible cushioning type glass plate turnover mechanism

Abstract

The application relates to the technical field of glass plate processing equipment, and particularly discloses a flexible buffering type glass plate turnover mechanism, which comprises a rack, a turnover frame, a turnover driving assembly, an auxiliary roller, a conveying roller and a conveying driving assembly. The turnover frame is arranged on the top of the rack, the conveying rollers are arranged in an array on the bottom and the side of the turnover frame, the conveying driving assembly is in transmission connection with the conveying rollers, the auxiliary roller is movably arranged on the other side of the turnover frame, the flexible adsorption assembly is further arranged, and the turnover driving assembly is arranged between the rack and the turnover frame and used for driving the turnover frame to rotate. The flexible buffering type glass plate turnover mechanism abandons the traditional rigid clamping turnover mode, realizes flexible buffering protection in the whole process of glass adsorption, turnover and lowering, can accurately identify the glass adsorption compression and lowering state, and effectively avoids the problems of glass edge collapse, cracks, desorption damage and the like.

Description

Technical Field

[0001] This invention relates to the field of glass sheet processing equipment technology, specifically a flexible buffer glass sheet flipping mechanism. Background Technology

[0002] In the deep processing of glass sheets, such as coating, grinding, cleaning, and screen printing, a flipping mechanism is needed to switch between the front and back sides. Currently, most traditional glass flipping equipment on the market adopts a double-sided symmetrical rigid clamping structure. After the glass sheet is rigidly clamped by two sets of clamping mechanisms, the flipping mechanism is used to complete the flipping action.

[0003] Existing technologies have several drawbacks in practical use: First, traditional rigid clamping methods result in stress concentration and make it difficult to precisely control the clamping force, easily causing damage such as edge chipping, surface cracking, and scratches on the glass sheet, leading to a low yield rate. Second, traditional clamping flipping structures require alignment and coordination between front and rear clamping mechanisms, resulting in complex structures, redundant volume, cumbersome clamping and loosening actions, slow equipment operation cycle, and poor versatility for automated production lines. Third, traditional flipping equipment is prone to interference and collision with the conveyor roller structure during the flipping process, requiring a large installation space to avoid interference, resulting in poor equipment adaptability and operational stability. Summary of the Invention

[0004] The purpose of this invention is to provide a flexible, buffered glass sheet flipping mechanism to overcome the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a flexible buffer glass sheet flipping mechanism, comprising a frame, a flipping frame, a flipping drive assembly, an auxiliary roller, a conveying roller, and a conveying drive assembly. The flipping frame is disposed on the top of the frame, the conveying roller array is arranged on the bottom and side of the flipping frame, the conveying drive assembly is connected to the conveying rollers for transmission, and the auxiliary roller is movably mounted on the other side of the flipping frame. The mechanism is characterized in that it further comprises a flexible adsorption assembly, and the flipping drive assembly is installed between the frame and the flipping frame and is used to drive the flipping frame to rotate. The flexible adsorption component is mounted on the bottom of the flipping frame. The flexible adsorption component can swing and adsorb glass plates on the conveyor roller. The flexible adsorption component is equipped with an elastic buffer structure that can be adaptively compressed and a sensing structure for identifying the adsorption pressure.

[0006] In a flexible buffer glass sheet flipping mechanism according to an embodiment of the present invention, the flipping drive assembly includes multiple sets of arc-shaped frames fixed to the bottom of the flipping frame, a servo motor and a chain disposed inside the frame. The output end of the servo motor is connected to a gear disk. An arc rack is fixed to the outer side of one of the arc frames. The arc rack meshes with the gear disk. A guide wheel is also provided between the frame and the tilting frame to engage with the other arc frames. The servo motor drives the arc frame to rotate through the meshing of the gear disk and the arc rack, thereby driving the tilting frame to rotate as a whole.

[0007] In a flexible buffer glass sheet flipping mechanism according to an embodiment of the present invention, the flipping frame has a U-shaped structure, the conveying rollers are linked by a belt pulley, and the conveying drive assembly is driven by the belt pulley to realize the synchronous rotation of multiple sets of conveying rollers to convey the glass sheet.

[0008] In a flexible buffer glass sheet flipping mechanism according to an embodiment of the present invention, the auxiliary roller is movably assembled at the side end of the flipping frame and is arranged in a staggered manner with the conveyor roller.

[0009] In a flexible buffer glass plate flipping mechanism according to an embodiment of the present invention, the flexible adsorption component includes a mounting frame fixed to the bottom of the flipping frame, a servo motor II mounted on one side of the mounting frame, a transmission shaft set at the output end of the servo motor II, a connecting frame assembled on the outside of the transmission shaft, an extension plate, a shaped plate, and multiple sets of buffer suction cups. The connecting frame is integrally connected to the extension plate and the irregular plate on one side. Multiple sets of buffer suction cup arrays are installed on the upper part of the extension plate. The servo motor drives the transmission shaft to rotate, causing the connecting frame, extension plate and buffer suction cups to swing and shift as a whole.

[0010] In a flexible buffer glass sheet flipping mechanism according to an embodiment of the present invention, the irregular plate has a V-shaped structure. The irregular plate has reserved clearance space during the flipping process to avoid structural collision and interference between the flexible adsorption component and the side conveyor roller.

[0011] In a flexible buffer glass sheet flipping mechanism according to an embodiment of the present invention, the buffer suction cup includes a hollow column, an air nozzle, an adsorption plate, a movable sleeve, a limiting support nut, a buffer spring, and a limiting sensor. The movable sleeve is fixed in the middle of the extension plate. The hollow column slides through the inside of the movable sleeve. The top of the hollow column is equipped with an air nozzle and the bottom is fixed with an adsorption plate. The outer side of the hollow column is threaded with a limiting support nut. The buffer spring is sleeved on the outside of the hollow column and sandwiched between the limiting support nut and the extension plate. The limiting sensor is installed on the side of the limiting support nut near the movable sleeve and is used to detect the sliding stroke of the hollow column and identify the downward pressure of the glass adsorption.

[0012] In a flexible buffer glass sheet flipping mechanism according to an embodiment of the present invention, the buffer spring is an adaptive compression and rebound structure. When the glass is adsorbed and in contact, the adsorption plate is forced to drive the hollow column to slide upward along the movable sleeve and compress the buffer spring, so as to realize flexible buffering during the adsorption process. When the glass is flipped and lowered, the buffer spring reverses and buffers and yields, so as to prevent the glass from being squeezed and collided.

[0013] In a flexible buffer glass sheet flipping mechanism according to an embodiment of the present invention, the limit sensor determines the adsorption and pressing state and the lowering state by detecting the sliding position signal of the hollow column, and identifies the stress on the glass in real time. With the flexible buffering effect of the buffer spring, the problem of excessive pressure and breakage of the glass is accurately avoided.

[0014] Compared with the prior art, the beneficial effects of the present invention are: the flexible buffer glass sheet flipping mechanism: 1. The glass gripping and flipping operation is completed through a flexible adsorption component. Specifically, the buffer spring, movable sleeve and hollow column inside the buffer suction cup form an adaptive elastic buffer structure. During the process of the adsorption cup adhering to the glass plate, the buffer spring can adaptively compress and rebound according to the flatness of the glass plate surface and the adsorption gap, so that the hollow column flexibly yields and compensates along the axial direction of the movable sleeve. There is no hard rigid compression contact throughout the process, which effectively avoids glass chipping, cracking, surface scratches and other damage problems, and improves the glass processing yield from the structural level.

[0015] 2. A limit sensor is integrated inside the limit support nut of the buffer suction cup. The limit sensor detects the sliding displacement of the hollow column in real time, accurately feeding back the degree of glass adsorption and pressing and the state of lowering and bonding. It can effectively identify abnormal working conditions such as over-pressure adsorption, incomplete bonding, and false adsorption and detachment, and avoid faults such as glass crushing and breakage, flipping and falling off, and misalignment. Compared with the traditional rigid suction cup structure without detection, it realizes the visualization and precise control of the flipping process, and can be adapted to the stable flipping operation of glass sheets of different thicknesses and specifications. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a flexible buffer glass sheet flipping mechanism provided in one embodiment of this application; Figure 2 This is a schematic diagram from another perspective of the present invention; Figure 3 This is a schematic diagram of the flexible adsorption component after it has been flipped in this invention; Figure 4 This is a schematic diagram of the flexible adsorption component in this invention; Figure 5 yes Figure 4 Another perspective view; Figure 6 This is a partial structural schematic diagram of the flexible adsorption component in this invention.

[0017] In the picture: 1. Frame; 2. Tilting frame; 3. Tilting drive assembly; 31. Arc frame; 32. Servo motor one; 33. Chain; 4. Auxiliary roller; 5. Conveyor roller; 6. Conveyor drive assembly; 7. Flexible adsorption assembly; 71. Mounting frame; 72. Servo motor two; 73. Drive shaft; 74. Connecting frame; 75. Extension plate; 76. Irregularly shaped plate; 77. Buffer suction cup; 771. Hollow column; 772. Air nozzle; 773. Adsorption plate; 774. Movable sleeve; 775. Limit support nut; 776. Buffer spring; 777. Limit sensor. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Example: Please refer to Figure 1-6 The present invention provides a technical solution: a flexible buffer glass sheet flipping mechanism, which mainly consists of a frame 1, a flipping frame 2, a flipping drive component 3, an auxiliary roller 4, a conveying roller 5, a conveying drive component 6, and a flexible adsorption component 7. The modules work together to realize an integrated automated flipping process of glass sheet conveying, flexible adsorption, impact-free flipping, and precise placement.

[0020] Among them, frame 1 serves as the load-bearing foundation of the whole machine, providing a stable installation benchmark for the upper tilting structure, conveying structure and adsorption execution structure, effectively ensuring the structural stability and assembly accuracy of the equipment during long-term high-speed operation.

[0021] In this embodiment, the flipping frame 2 adopts a U-shaped integral frame structure mounted on top of the frame 1. The U-shaped hollow structure can greatly reduce the overall weight and flipping inertia, while providing sufficient movement space for glass flipping, repositioning, and unloading, avoiding operational interference caused by structural enclosure. Multiple sets of conveyor rollers 5 are evenly arranged in an array at the bottom and sides of the flipping frame 2. All conveyor rollers 5 are synchronously linked through pulleys and powered by two sets of conveyor drive components 6. This enables the horizontal, continuous, and stable conveying of glass sheets of different sizes and specifications, ensuring accurate glass feeding position and uniform conveying speed, providing the preconditions for subsequent precise adsorption and flipping.

[0022] The side end of the flipping frame 2 is equipped with an auxiliary roller 4, which plays a supporting and smooth transition role during the glass flipping transition and the panel reversal support process. At the same time, it works with the overall structure to form a multi-dimensional avoidance space, further reducing the risk of collision during the flipping movement.

[0023] In this embodiment, a flip drive assembly 3 is precisely assembled between the frame 1 and the flip frame 2. The flip drive assembly 3 specifically includes multiple sets of evenly arranged and fixed arc frames 31 at the bottom of the flip frame 2, a servo motor 32 arranged inside the frame 1, and a chain 33. The multiple sets of arc frames 31 can effectively distribute the load between the flip frame 2 and the glass plate, and improve the flip load-bearing stability.

[0024] Among them, the servo motor 32 serves as a precision power source, and its output end is connected to a high-precision gear disk. The gear disk and the arc rack fixed to the bottom of one of the arc frames 31 form a precise meshing transmission structure. Together with the guide wheels set on the frame 1, it slides and resists the other arc frames 31 for limiting and guiding support. This can effectively limit the deviation of the flipping trajectory and avoid flipping offset, shaking, and jamming problems. It can drive the flipping frame 2 to rotate and flip at a uniform speed smoothly and accurately. Compared with the traditional single-sided cantilever flipping structure, this structure has uniform flipping force, strong synchronization, and low operating noise, which greatly improves the flipping accuracy and equipment durability.

[0025] The bottom of the flipping frame 2 is fixedly equipped with a mounting frame 71, which serves as a fixed base for the flexible adsorption component 7, ensuring the overall synchronization between the adsorption execution structure and the flipping frame 2. A servo motor 72 is fixedly mounted on one side of the mounting frame 71. The servo motor 72 has the advantage of precise and controllable angle, and its output end is rigidly connected to the drive shaft 73. A connecting frame 74 is securely mounted on the outside of the drive shaft 73 to achieve precise power transmission.

[0026] In this embodiment, the connecting frame 74 is manufactured using an integrated molding process, incorporating an extension plate 75 and a V-shaped irregular plate 76. This integrated molding structure offers high strength, eliminates assembly gaps, and ensures good motion synchronization, preventing long-term loosening and deviation caused by separate connections. Multiple sets of buffer suction cups 77 are arrayed and installed on the upper end of the extension plate 75. This array of suction cups allows for uniform adsorption of the glass surface at multiple points, ensuring even force distribution on the glass and preventing deformation, displacement, and detachment caused by uneven force distribution at a single point.

[0027] The key inventive structure that distinguishes this embodiment from existing technologies is the integrated flexible buffer and pressure recognition structure of the buffer suction cup 77, which is also the core technology upon which this mechanism achieves flexible, damage-resistant flipping. The buffer suction cup 77 is assembled from a hollow column 771, an air nozzle 772, an adsorption plate 773, a movable sleeve 774, a limiting support nut 775, a buffer spring 776, and a limiting sensor 777 to form an integrated adaptive buffer detection unit.

[0028] The movable sleeve 774 is securely embedded in the middle of the extension plate 75, providing a precise axial sliding guide for the hollow column 771, ensuring that the buffer displacement is free from offset and jamming. The hollow column 771 can slide precisely vertically along the movable sleeve 774, realizing dynamic displacement compensation during the adsorption and lowering process.

[0029] In this embodiment, an air nozzle 772 is provided at the top of the hollow column 771 to connect to the negative pressure air supply equipment, realizing negative pressure adsorption air supply and air cut-off unloading; a large contact surface adsorption plate 773 is fixedly installed at the bottom to increase the contact area with the glass plate surface, reduce the adsorption pressure per unit area, and avoid local pressure damage to the plate surface. A limiting support nut 775 is detachably mounted on the outside of the hollow column 771 via a thread. The threaded adjustable structure can be adapted to the buffer stroke adjustment of glass of different thicknesses, making it more versatile. A buffer spring 776 is sleeved on the outside of the hollow column 771 and sandwiched between the limiting support nut 775 and the extension plate 75, forming a fully adaptive compression rebound buffer structure. It can automatically elastically yield and absorb energy buffering in the three key impact stages of adsorption contact, flipping start and stop, and lowering and bonding, offsetting the hard extrusion force and inertial impact force.

[0030] Meanwhile, the limit sensor 777 is precisely installed on the side of the limit support nut 775 near the movable sleeve 774. It can detect the axial sliding stroke of the hollow column 771 in real time and accurately. Through the stroke displacement, it indirectly and accurately feeds back the glass adsorption pressure, the degree of adhesion and tightness, and the lowering position. It realizes the indirect identification of adsorption pressure and intelligent judgment of working conditions, and completely solves the dual defects of traditional suction cups, which are rigid contact, no buffer, no pressure detection, and rely entirely on experience for adjustment, resulting in glass breakage due to overpressure and material drop due to insufficient pressure.

[0031] In actual assembly and industrial use, this embodiment completely abandons the rigid clamping contact method of traditional equipment. The entire glass flipping process relies on negative pressure adsorption combined with adaptive elastic buffering, eliminating any points of stress concentration from rigid clamping. During operation, the adaptive elastic yielding characteristic of the buffer spring 776 automatically compensates for the flatness error of the glass sheet itself, the conveying alignment deviation, and the mechanical assembly gap error, adapting to the processing of conventional glass sheets with slight warping and varying thicknesses. Simultaneously, with real-time stroke detection feedback from the limit sensor 777, the equipment can intelligently determine whether the adsorption is in place, whether the pressure exceeds the limit, and whether the lowering is properly aligned. This ensures that the glass is firmly adsorbed and does not fall off during flipping, while precisely avoiding damage problems such as glass chipping, corner cracks, surface cracks, and surface scratches caused by excessive pressure, significantly improving the glass processing yield.

[0032] The working principle of this embodiment is as follows: First, the equipment is in standby position, and the conveyor drive component 6 works, driving multiple sets of conveyor rollers 5 to rotate synchronously through the belt pulley, smoothly conveying the glass sheet to be flipped to the flipping station inside the flipping frame 2, completing the precise feeding and positioning of the glass.

[0033] Next, the flexible adsorption process begins. Servo motor 72 starts, driving the connecting frame 74 and extension plate 75 downwards via transmission shaft 73. This moves the arrayed buffer suction cups 77 above the glass plate, bringing the suction cups 773 into contact with the glass surface and initiating negative pressure adsorption. At the moment of contact, the glass surface pushes the suction cups 773 in the opposite direction, causing the hollow column 771 to slide upwards along the movable sleeve 774, compressing the outer buffer spring 776. The elastic deformation of the buffer spring 776 achieves adaptive flexible buffering and fitting, avoiding hard compression of the glass. When the hollow column 771 slides to the set stroke, the limit sensor 777 detects the positioning signal, determining that the glass adsorption and pressing are in place, completing the flexible adsorption positioning.

[0034] Then, the overall flipping process begins. Servo motor 32 starts and drives the arc frame 31 to rotate through the meshing of the gear disk and the arc rack, thereby driving the entire flipping frame 2 and the glass plate that has been adsorbed and fixed to rotate synchronously.

[0035] After being flipped into position, the glass plate enters the flexible lowering process. During the flipping and resetting process of the flipping frame 2, the glass plate gradually approaches the conveyor roller 5 on the other side. After the glass plate surface contacts the conveyor roller 5, it generates a reverse support force, which pushes the adsorption plate 773 and the hollow column 771 to move again, compressing the buffer spring 776 in the reverse direction, realizing a secondary flexible buffering and yielding during the lowering process. At this time, the limit sensor 777 detects the position signal again, determines that the glass lowering and bonding is complete, the equipment disconnects the negative pressure, and the adsorption plate 773 releases the glass plate.

[0036] Finally, servo motor 272 drives the flexible adsorption component 7 to swing and reset, and the conveying drive component 6 starts again. The glass sheet that has been flipped is transported to the next processing station through the conveying roller 5 to complete the flipping. When the glass needs to be flipped in the future, the above steps are reversed to flip the glass.

[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flexible buffer glass sheet flipping mechanism, comprising a frame (1), a flipping frame (2), a flipping drive assembly (3), an auxiliary roller (4), a conveying roller (5), and a conveying drive assembly (6), wherein the flipping frame (2) is disposed on the top of the frame (1), the conveying rollers (5) are arranged in an array at the bottom and sides of the flipping frame (2), the conveying drive assembly (6) is connected to the conveying rollers (5) in a transmission manner, and the auxiliary roller (4) is movably mounted on the other side of the flipping frame (2), characterized in that: It also includes a flexible adsorption component (7), and the flipping drive component (3) is installed between the frame (1) and the flipping frame (2) and is used to drive the flipping frame (2) to rotate; The flexible adsorption component (7) is mounted on the bottom of the flipping frame (2). The flexible adsorption component (7) can swing and adsorb the glass plate on the conveying roller (5). The flexible adsorption component (7) is provided with an elastic buffer structure that can be adaptively compressed and a sensing structure for identifying the adsorption pressure.

2. The flexible buffer glass sheet flipping mechanism according to claim 1, characterized in that: The flip drive assembly (3) includes multiple sets of arc-shaped frames (31) fixed at the bottom of the flip frame (2), a servo motor (32) and a chain (33) set inside the frame (1). The output end of the servo motor (32) is connected to a gear disk. An arc rack is fixed to the outside of one set of arc frames (31). The arc rack meshes with the gear disk. A guide wheel that abuts against the other arc frames (31) is also provided between the frame (1) and the tilting frame (2). The servo motor (32) drives the arc frame (31) to rotate through the meshing of the gear disk and the arc rack, thereby driving the tilting frame (2) to rotate as a whole.

3. The flexible buffer glass sheet flipping mechanism according to claim 2, characterized in that: The flipping frame (2) has a U-shaped structure. The conveying roller (5) is connected by a belt pulley. The conveying drive component (6) is driven by the belt pulley to realize the synchronous rotation of multiple sets of conveying rollers (5) to convey glass plates.

4. The flexible buffer glass sheet flipping mechanism according to claim 3, characterized in that: The auxiliary roller (4) is movably mounted on the side of the flipping frame (2) and is arranged in a staggered manner with the conveyor roller (5).

5. The flexible buffer glass sheet flipping mechanism according to claim 1, characterized in that: The flexible adsorption assembly (7) includes a mounting frame (71) fixed to the bottom of the flipping frame (2), a second servo motor (72) mounted on one side of the mounting frame (71), a drive shaft (73) set at the output end of the second servo motor (72), a connecting frame (74) assembled on the outside of the drive shaft (73), an extension plate (75), a shaped plate (76), and multiple sets of buffer suction cups (77). The connecting frame (74) is integrally connected to the extension plate (75) and the irregular plate (76) on one side. Multiple sets of buffer suction cups (77) are arrayed and installed on the upper end of the extension plate (75). The servo motor (72) drives the transmission shaft (73) to rotate, causing the connecting frame (74), the extension plate (75) and the buffer suction cups (77) to swing and shift as a whole.

6. The flexible buffer glass sheet flipping mechanism according to claim 5, characterized in that: The irregular plate (76) has a V-shaped structure.

7. The flexible buffer glass sheet flipping mechanism according to claim 5, characterized in that: The buffer suction cup (77) includes a hollow column (771), an air nozzle (772), an adsorption plate (773), a movable sleeve (774), a limiting support nut (775), a buffer spring (776), and a limiting sensor (777). The movable sleeve (774) is fixed in the middle of the extension plate (75), and the hollow column (771) slides through the inside of the movable sleeve (774). The hollow column (771) is provided with an air nozzle (772) at the top and an adsorption plate (773) at the bottom. The hollow column (771) is threaded with a limiting support nut (775) on the outside. The buffer spring (776) is sleeved on the outside of the hollow column (771) and sandwiched between the limiting support nut (775) and the extension plate (75). The limiting sensor (777) is installed on the side of the limiting support nut (775) near the movable sleeve (774).

8. The flexible buffer glass sheet flipping mechanism according to claim 7, characterized in that: The buffer spring (776) is an adaptive compression and rebound structure.

9. A flexible buffer glass sheet flipping mechanism according to claim 7, characterized in that: The limit sensor (777) determines the adsorption and compression state and the lowering state by detecting the sliding position signal of the hollow column (771).

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