Automatic buffer and stacking conveying device for hollow glass finished products

Abstract

The application discloses a kind of hollow glass finished product automation buffer stacking conveying device, it is related to glass automation conveying stacking technical field.The device includes main support frame and the feeding conveying mechanism, multi-station buffer mechanism, gantry transfer mechanism and stacking deferring mechanism arranged thereon, gantry transfer mechanism is used to move and send the hollow glass after buffering to stacking position.Stacking deferring mechanism is equipped with the moving frame that retreats with the increase of glass stack thickness, moving frame is equipped with the supporting frame for holding glass stack, and the retreat displacement of moving frame is converted into the conveying movement of bottom supporting conveying assembly by linkage transmission assembly, so that the upper part of glass stack retreats along with supporting frame, while the bottom edge of glass actively moves in the same direction, to reduce bottom lag, inclination change and adjacent glass drag, and reduce the setting of independent synchronous drive mechanism, improve continuous stacking stability.

Description

Technical Field

[0001] This invention relates to the field of insulating glass production equipment technology, and in particular to an automated buffering, palletizing and conveying device for finished insulating glass products. Background Technology

[0002] Insulating glass products are typically characterized by their large area, heavy weight, high rigidity, and susceptibility to edge damage from impacts. At the end of the production line, to reduce manual handling and facilitate subsequent packaging, warehousing, or transfer processes, the finished insulating glass units are usually transported sequentially to a stacking station and stacked one by one at a specific angle. During stacking, the weight of the glass is generally supported by a bottom support structure, and the rear support structure prevents the glass from tilting backward or forward, ensuring that multiple panes of glass are arranged continuously in a predetermined posture.

[0003] As insulated glass panes are added one by one, the overall thickness of the glass stack continuously increases. To ensure that subsequent panes can still be placed in the relatively fixed interlocking position, existing equipment typically requires the rear support structure or the moving parts supporting the support structure to gradually retract as the glass stack thickness increases, making room for the newly added glass. During this process, the upper part of the glass stack moves backward under the action of the support structure, while the bottom edge of the glass stack bears most of the weight of the entire stack of glass, and there is significant contact pressure and frictional resistance between it and the bottom supporting structure.

[0004] Therefore, when the rear support structure moves backward, the upper part of the glass stack can follow its movement relatively quickly, while the bottom edge of the glass may lag behind due to its own weight, bottom friction, and mutual compression between multiple glass panes. Especially as the number of glass panes gradually increases, the weight of the glass stack continues to increase, and the resistance to movement of the bottom edge increases accordingly. When relying solely on the rear support structure to move the entire stack of glass backward, it is more likely that the upper part of the glass will have moved backward while the bottom edge remains near its original position, causing a change in the actual tilt angle of the glass stack and resulting in additional compression or relative dragging between adjacent glass panes.

[0005] The aforementioned misalignment between the upper and lower parts can also cause localized jamming at the bottom edge of the glass in the support position. This alters the available space when the next insulated glass pane enters the stacking position, necessitating readjustment of the pane placement or increasing the operational margin of the stacking mechanism. As the number of stacking operations increases, this deviation may gradually accumulate, negatively impacting the continuous stacking cycle and the overall stability of the stacked glass. Therefore, ensuring good coordination between the upper part of the glass stack's retreat and the lower edge movement as the glass panes gradually thicken and recede, while avoiding the need for complex independent synchronous control mechanisms, is a problem that needs to be solved in the automated stacking and conveying of insulated glass. Summary of the Invention

[0006] The technical problem to be solved by the present invention is that in the existing process of stacking insulating glass sheets one by one, as the thickness and weight of the glass stack increase, when the rear support structure retreats, the upper part and the bottom edge of the glass stack are prone to asynchronous movement due to differences in load and friction, which in turn causes the bottom edge to lag, changes in the glass tilt angle, dragging of adjacent glass, and deviation of the stacking position.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: The present invention provides an automated buffering, palletizing, and conveying device for finished insulating glass products, wherein glass feeding, buffering, transfer, and palletizing operation areas are sequentially formed on the main support frame. The front end feeds insulating glass into the equipment via a feeding conveyor mechanism. A multi-station buffering mechanism is used to temporarily store the incoming insulating glass at different stations. A gantry transfer mechanism reciprocates between the buffering position and the palletizing position, transferring the insulating glass pieces at the corresponding buffering position one by one to the palletizing clearance mechanism. The palletizing clearance mechanism is equipped with a movable frame that gradually retracts as the thickness of the glass stack increases. The movable frame is equipped with a support frame for holding the glass stack, and a bottom support conveying component is provided at the bottom of the glass stack to support and convey the bottom edge of the glass. The movable frame is driven by a retraction drive component and establishes a mechanical transmission relationship with the bottom support conveying component through a linkage transmission component. This allows the displacement generated by the retraction of the movable frame to be further converted into the conveying motion of the bottom support conveying component, thereby enabling the bottom edge of the glass stack to actively move in the same direction while the upper part of the glass stack retracts with the support frame.

[0008] In one implementation, the retraction drive assembly can employ a servo motor and a lead screw. The servo motor drives the lead screw to rotate, and the lead screw engages with a nut seat on the moving frame, thereby converting the rotational motion into linear retraction motion of the moving frame and the support frame along the direction of increasing glass stack thickness. By controlling the rotation amount of the servo motor, the moving frame can retract accordingly based on the thickness of a single glass pane or a predetermined stacking pitch.

[0009] As a further implementation, the linkage transmission assembly can employ a rack and pinion motion conversion structure. A bottom rack extending along its retraction direction is mounted on the moving frame, and a transmission gear meshing with the bottom rack is rotatably mounted on the main support frame. When the moving frame drives the bottom rack to produce a linear displacement, the bottom rack moves relative to the transmission gear, thereby driving the transmission gear to rotate. This further transforms the original linear retraction motion of the moving frame into rotational power that can be used to drive the bottom-supporting conveyor assembly.

[0010] To transmit the rotational power to multiple support positions at the bottom of the glass stack, the output side of the transmission gear is connected to a horizontally arranged transmission rod via a transmission chain. The transmission rod is rotatably supported on the main support frame and is connected to the transmission sprockets located at each bottom support position. The rotational power generated by the transmission gear is transmitted to the transmission rod via the transmission chain, and then synchronously distributed to each transmission sprocket by the transmission rod.

[0011] Based on this, the transmission sprocket can be further connected to the first transmission gear in a coaxial transmission connection. The first transmission gear meshes with the second transmission gear, and the second transmission gear establishes a transmission relationship with the rotating shaft of the bottom support conveyor assembly. A belt is wound around the outside of the rotating shaft, so that the bottom support conveyor assembly forms a belt-type support structure capable of actively conveying the bottom edge of the glass. The transmission direction of each transmission component is set according to the retraction direction of the moving frame, so that when the moving frame retracts, the working surface on the upper side of the belt that directly contacts the bottom edge of the glass moves synchronously along the retraction direction of the glass stack, thereby forming a definite mechanical linkage between the retraction of the support frame and the movement of the bottom edge of the glass.

[0012] In another embodiment, multiple spaced-apart stacking support rails are provided at the stacking position. Each stacking support rail is fixed relative to the main support frame, and a clearance space is formed between adjacent stacking support rails for the bottom support fork of the gantry transfer mechanism to enter and exit. A transmission component for supporting the bottom edge of the glass is provided on the stacking support rails. The transmission component consists of a rotating shaft and a belt wound around the outside of the rotating shaft. The upper working surface of the belt is higher than the upper surface of the stacking support rail, so that the insulating glass entering the stacking position mainly makes bottom contact with the belt.

[0013] To improve the operational stability of the conveyor belt when bearing loads of multiple insulating glass units, a support is installed between adjacent rotating shafts. This support is connected to the stacking support rail and located inside the conveyor belt. Multiple freely rotatable rolling pins are mounted on the support, contacting the inner surface of the conveyor belt. This rolling support replaces the direct sliding contact between the conveyor belt and the fixed support surface. Grooves corresponding to the bottom edge of the insulating glass unit can also be provided on the outer side of the conveyor belt to increase the contact stability between the bottom edge of the glass and the working surface of the conveyor belt.

[0014] In the multi-station buffer mechanism, a sliding frame capable of laterally moving along the direction of the buffer stations is installed on the buffer support frame. A buffer repositioning drive motor drives the sliding frame to reposition via a meshing first gear and first rack, allowing different buffer slots to correspond to the feeding or unloading positions respectively. A telescopic support is further installed on the buffer support frame, and a positioning cylinder is installed on the sliding frame corresponding to each predetermined buffer position. When the sliding frame needs to be repositioned, the telescopic support retracts from the positioning cylinder; after the target buffer position is reached, the telescopic support re-inserts into the corresponding positioning cylinder to provide positional constraint and auxiliary support for the sliding frame, before the glass enters or exits the buffer slot.

[0015] A bridge drive mechanism capable of selective engagement can be provided between the feeding conveyor and the multi-station buffer mechanism. The bridge drive mechanism is driven by a lifting actuator to raise and lower the second feeding chain drive assembly, with a first bridge sprocket and a second bridge sprocket correspondingly positioned at both ends. When the target buffer slot is not yet in place, the bridge drive mechanism remains disengaged; after the target buffer slot has been repositioned, the lifting actuator drives the bridge drive mechanism into the working position, establishing a transmission relationship between the first bridge sprocket and the first feeding chain drive assembly on the feeding side, and simultaneously establishing a transmission relationship between the second bridge sprocket and the buffer chain drive assembly corresponding to the target buffer slot. This selectively transmits power from the feeding side to the buffer conveyor of the current buffer slot.

[0016] The gantry transfer mechanism uses a combination of lifting and horizontal transfer to transport single panes of glass. Its lifting drive is connected to a lifting guide frame, which has a bottom support fork that can access the bottom edge of the insulating glass unit. This bottom support fork bears the main vertical load of the insulating glass. A vacuum adsorption component is movably mounted on the side of the lifting guide frame facing the glass panel, and is driven by a small cylinder to move closer to or away from the glass panel. During unloading, the bottom support fork provides support from the bottom of the glass, and the vacuum adsorption component then adheres to the glass panel for adsorption. This ensures that the glass receives both bottom support and panel posture constraint during transfer from the buffer position to the stacking position. After the transfer is complete, the support and adsorption relationships are released according to the stacking process.

[0017] The technical solution formed by the above structure takes the retraction motion of the palletizing and yielding mechanism as the basic motion, and further obtains the active conveying motion of the bottom of the glass through mechanical linkage. At the same time, the buffer displacement positioning, selective power engagement and bottom support load-bearing vacuum stabilization are used as the front-end glass conveying and transfer coordination structure, so that a continuous mechanical operation relationship is formed between each process.

[0018] The beneficial effects of this invention are as follows: During the stacking of insulating glass sheets, as the thickness of the glass stack increases, the moving frame drives the support frame to retreat while the linkage transmission component synchronously drives the bottom support conveying component to convey the bottom edge of the glass in the same direction, ensuring that the retreating movement of the upper part of the glass stack is coordinated with the retreating movement of the bottom edge of the glass. Compared with the method of relying solely on the rear support frame to push the entire glass stack backward, this invention does not passively drag the bottom edge of the glass through sliding friction between the glass itself and the bottom support surface, but actively provides a conveying action to the bottom edge of the glass in the same direction as the retreat, thereby significantly reducing the displacement difference between the upper and lower parts of the glass stack, reducing the tilt angle changes, dragging of adjacent glass surfaces, and bottom edge jamming caused by the lag of the bottom edge of the glass, and making the space for the next stack of sheets formed after each additional glass sheet more stable. Furthermore, the bottom conveying movement is directly derived mechanically from the retreating displacement of the moving frame, eliminating the need for a separate bottom drive motor and synchronous control program that matches the retreat of the support frame. This simplifies the drive and control relationship and also avoids asynchronous upper and lower movements caused by response errors, parameter drift, or control delays in two independent actuators.

[0019] Furthermore, the bottom rack and transmission gear directly convert the linear retraction of the moving frame into rotational power. This power is then synchronously transmitted to multiple transmission components via a transmission chain, transmission rod, transmission sprocket, transmission gear one, and transmission gear two. This ensures that multiple glass bottom support positions can achieve consistent active conveying in the same retraction action, thereby reducing the tendency for one side of the glass stack to move first while the other lags behind. The stacking support rail remains fixed, ensuring that the support benchmark at the bottom of the glass does not change with the retraction of the support frame. The belt only undertakes the active conveying function on the support surface, which is beneficial for balancing stable load-bearing and bottom movement. The support component supports the middle of the belt, reducing belt sagging caused by long-term pressure from multiple insulating glass units. The rolling column converts the direct sliding friction between the belt and the support component into rolling contact, reducing resistance during heavy-load operation. The groove further improves the friction retention capacity between the belt working surface and the bottom edge of the glass, thereby reducing the possibility of the belt spinning idly while the bottom edge of the glass does not move during heavy-load stacking.

[0020] Furthermore, after the sliding frame completes its repositioning, the multi-station buffer mechanism uses telescopic supports inserted into the positioning cylinder to form mechanical positioning and auxiliary support. This allows the buffer slots to maintain their position without entirely relying on the stopping accuracy of the drive motor when receiving large-sized insulated glass, reducing sliding frame swaying and slot displacement during glass loading and unloading. The bridge transmission mechanism only establishes a power connection between the feeding side and the corresponding buffer conveyor after the target buffer slot has completed its repositioning and positioning. This allows multiple buffer slots to share the feeding side power source and avoids tooth collisions or interference caused by the transmission components remaining engaged during lateral movement of the buffer slots. The gantry transfer mechanism uses a bottom support fork to bear the main weight of the insulated glass, while the vacuum adsorption component is mainly responsible for limiting glass tipping and swaying. This separates the glass's load-bearing and posture-maintaining functions, reducing the risk of detachment due to vacuum fluctuations when large-sized insulated glass relies entirely on suction cup suspension, and improving stability during buffer material retrieval, lateral transfer, and stacking processes. Attached Figure Description

[0021] The disclosure of this invention is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this invention; the same reference numerals are used to refer to the same or corresponding parts.

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective;

[0024] Figure 3 This is a partial structural diagram of the feeding and buffer area of ​​the present invention;

[0025] Figure 4 This is a partial structural schematic diagram of the bridge transmission mechanism of the present invention;

[0026] Figure 5 This is a schematic diagram of the gantry transfer mechanism of the present invention;

[0027] Figure 6 This is a schematic diagram of the palletizing clearance mechanism of the present invention;

[0028] Figure 7 This is a schematic diagram of the stacking structure of hollow glass in this invention;

[0029] Figure 8 This is a side view of the palletizing clearance mechanism of the present invention.

[0030] Figure 9 This is a schematic diagram of a partial transmission structure of the palletizing clearance mechanism of the present invention;

[0031] Figure 10 This is a partial structural schematic diagram of the transmission component of the present invention.

[0032] Explanation of reference numerals in the attached drawings: 1. Main support frame; 2. Feeding conveyor mechanism; 3. Bridge transmission mechanism; 4. Multi-station buffer mechanism; 5. Gantry transfer mechanism; 6. Palletizing and clearance mechanism; 8. Insulating glass; 21. Feeding drive motor; 22. Feeding drive shaft; 23. First feeding chain transmission assembly; 24. Feeding conveyor; 25. Feeding output bracket; 26. Feeding support frame; 31. Lifting actuator; 32. Second feeding chain transmission assembly; 33. First bridge sprocket; 34. Second bridge sprocket; 41. Buffer support frame; 42. Buffer shifting drive motor; 421. First gear; 43. Sliding frame; 431. First rack; 44. Telescopic support; 45. Positioning cylinder; 46. Buffer conveyor; 47. Buffer chain transmission assembly; 48. Buffer output bracket; 49. Buffer support bracket; 51. Gantry support frame; 511. Second rack; 52. Horizontal drive motor; 53. First drive rod; 531. Second gear; 54. Lifting drive component; 55. Lifting guide frame; 551. Small cylinder; 56. Bottom support fork; 57. Vacuum adsorption assembly; 61. Moving frame; 611. Support frame; 62. Servo motor; 63. Lead screw; 64. Bottom rack; 65. Transmission gear; 66. Transmission chain; 67. Transmission rod; 68. Transmission sprocket; 681. Transmission gear one; 682. Transmission gear two; 69. Palletizing support rail; 610. Transmission component; 6101. Rotating shaft; 6102. Belt; 6103. Support component; 6104. Rolling column; 6105. Groove. Detailed Implementation

[0033] It is readily understood that, based on the technical solution of this invention, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of the invention. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative examples of the technical solution of this invention and should not be considered as the entirety of the invention or as limitations or restrictions on the technical solution of this invention.

[0034] The invention will be further described below with reference to the accompanying drawings. This embodiment provides an automated buffering and palletizing conveying device for finished insulating glass products, including a main support frame 1. The main support frame 1 extends along the flow direction of the insulating glass 8 and forms a unified support base for the entire machine. A feeding station is formed at the front of the main support frame 1, and a feeding conveying mechanism 2 is provided at this feeding station. A bridge transmission mechanism 3 is provided behind the output end of the feeding conveying mechanism 2. The other side of the bridge transmission mechanism 3 corresponds to a multi-station buffering mechanism 4 located in the middle of the main support frame 1, enabling the feeding conveying mechanism 2 to selectively... Power is transmitted to the multi-station buffer mechanism 4. A gantry transfer mechanism 5 is installed above the multi-station buffer mechanism 4. The lateral working range of the gantry transfer mechanism 5 extends from the buffer material pick-up position to the stacking position at the rear of the main support frame 1. A stacking clearance mechanism 6 is installed at the stacking position. The insulating glass 8 passes through the feeding conveyor 2, the multi-station buffer mechanism 4, the gantry transfer mechanism 5, and the stacking clearance mechanism 6 in sequence. After reaching the predetermined stacking quantity, the glass stack is picked up as a whole by an external transfer trolley with forks and transferred to the subsequent work station. The insulating glass 8 maintains a generally backward tilted posture inside the equipment. In this embodiment, it is preferably tilted backward by about 6° relative to the vertical direction. The bottom edge of the glass bears the main vertical weight, and the rear side of the glass is restricted from tilting and swinging forward by a corresponding support structure, thereby maintaining a stable posture during continuous conveying, buffering, and stacking.

[0035] The feeding conveying mechanism 2 includes a feeding drive motor 21. The output end of the feeding drive motor 21 is connected to the feeding transmission shaft 22 arranged laterally along the insulating glass 8. The two ends of the feeding transmission shaft 22 are respectively rotatably supported at the corresponding support positions at the front of the main support frame 1 through bearing seats. The drive end of the feed drive shaft 22 is provided with a first feed chain drive assembly 23. The first feed chain drive assembly 23 consists of a chain and sprockets located at both ends of the chain and meshing with it. The first feed chain drive assembly 23 is mounted on the feed output bracket 25 on the main support frame 1. The feed output bracket 25 is provided with multiple sets of feed conveyors 24. Each feed conveyor 24 consists of a driven sprocket and a roller. The driven sprocket meshes with the chain of the first feed chain drive assembly 23. Specifically, the torque of the feed drive motor 21 can drive the first feed chain drive assembly 23 to rotate via the feed drive shaft 22. The chain of the first feed chain drive assembly 23 drives the rollers of the multiple feed conveyors 24 to rotate, thereby realizing the conveying of the insulating glass 8.

[0036] A feeding support frame 26 is installed at a position corresponding to the rear side of the feeding output bracket 25. The lower part of the feeding support frame 26 is fixedly connected to the main support frame 1, and its support direction is consistent with the predetermined backward tilting posture of the insulating glass 8. Multiple rotatable support rollers are arranged at intervals along the conveying direction on the feeding support frame 26. After the insulating glass 8 enters the equipment, the bottom edge is mainly supported by the feeding conveyor 24 and the feeding output bracket 25, and the rear side plate is in rolling contact with the support rollers on the feeding support frame 26. When the feeding drive motor 21 is working, the feeding conveyor 24 drives the insulating glass 8 to move backward while maintaining the tilting posture.

[0037] The bridge transmission mechanism 3 includes a lifting actuator 31. The fixed end of the lifting actuator 31 is connected to the main support frame 1 through a support. The driving end of the actuator 31 is equipped with a second feeding chain transmission assembly 32. The second feeding chain transmission assembly 32 has the same structure as the first feeding chain transmission assembly 23. The sprockets at both ends of the second feeding chain transmission assembly 32 are respectively coaxially provided with a first bridge sprocket 33 and a second bridge sprocket 34. The first bridge sprocket 33 is located on the upper side of the chain of the first feeding chain transmission assembly 23 near the bridge transmission mechanism 3. The second bridge sprocket 34 is located on the upper side of the buffer chain transmission assembly 47 of the multi-station buffer mechanism 4 near the feeding conveying mechanism 2.

[0038] When the multi-station buffer mechanism 4 performs lateral shifting, the lifting actuator 31 keeps the second feeding chain drive assembly 32 in the disengaged position. The first bridge sprocket 33 and the second bridge sprocket 34 maintain a gap with the parts to be engaged on both sides, thereby avoiding tooth collision or lateral interference during lateral shifting. After the target buffer slot reaches the feeding position and completes positioning, the lifting actuator 31 drives the second feeding chain drive assembly 32 to the engagement position, so that the first bridge sprocket 33 engages with the chain of the first feeding chain drive assembly 23, and at the same time, the second bridge sprocket 34 engages with the chain of the buffer chain drive assembly 47 corresponding to the target buffer slot. The torque obtained by the first bridge sprocket 33 is transmitted to the second bridge sprocket 34 through the coaxial sprocket, the chain of the second feeding chain drive assembly 32, and the sprocket at the other end, and then transmitted from the second bridge sprocket 34 to the buffer chain drive assembly 47. Thus, the power output from the feed drive motor 21 is sequentially transmitted to the buffer conveyor 46 via the feed drive shaft 22, the first feed chain drive assembly 23, the first bridge sprocket 33, the second feed chain drive assembly 32, the second bridge sprocket 34, and the buffer chain drive assembly 47. After the current buffer slot is filled or unfilled, the lifting actuator 31 reverses its movement, causing the first bridge sprocket 33 and the second bridge sprocket 34 to disengage from their engaged positions, allowing the multi-station buffer mechanism 4 to perform the next repositioning.

[0039] The multi-station buffer mechanism 4 includes a buffer support frame 41. The lower part of the buffer support frame 41 is fixedly connected to the middle of the main support frame 1, and its front end corresponds to the feed output bracket 25 and the bridge transmission mechanism 3, so that the insulating glass 8 can enter the buffer area from the front feed area. A sliding frame 43 is slidably arranged above the buffer support frame 41. The lower part of the sliding frame 43 is connected to the linear guide rail of the buffer support frame 41 through a slider, so that the sliding frame 43 can be laterally moved in a direction that is basically perpendicular to the longitudinal conveying direction of the insulating glass 8. A buffer moving drive motor 42 for driving the moving frame 43 is fixed inside the buffer support frame 41. A first gear 421 is fixedly arranged on the output shaft of the buffer moving drive motor 42. A first rack 431 that meshes with the first gear 421 is fixedly arranged on the lower part of the sliding frame 43 and extends along the moving direction of the sliding frame 43. When the buffer shifting drive motor 42 drives the first gear 421 to rotate, the meshing between the first gear 421 and the first rack 431 converts the rotational motion into the lateral linear motion of the sliding frame 43.

[0040] To ensure the stability of the sliding frame 43 after the station repositioning is completed, a telescopic support member 44 is provided on the buffer support frame 41, with the telescopic support member 44 extending towards the sliding frame 43. A positioning cylinder 45 is provided on the sliding frame 43 for each predetermined buffer station, and the internal positioning space of the positioning cylinder 45 is adapted to the telescopic end of the telescopic support member 44. Before the sliding frame 43 moves laterally, the telescopic support member 44 retracts and exits the positioning cylinder 45 to release the constraint on the sliding frame 43. After the target buffer slot reaches the predetermined position, the buffer repositioning drive motor 42 stops, and the telescopic support member 44 extends upward and inserts into the corresponding positioning cylinder 45. After the telescopic support member 44 is inserted into the positioning cylinder 45, it restricts the sliding frame 43 from continuing to move laterally and forms an auxiliary support between the buffer support frame 41 and the sliding frame 43, reducing the shaking caused by load changes when the insulating glass 8 enters or leaves the buffer slot. Therefore, the buffer repositioning action is performed in the following order: "telescopic support 44 exits the positioning cylinder 45 - sliding frame 43 repositions laterally - target station is in place - telescopic support 44 re-inserts into the positioning cylinder 45".

[0041] Multiple parallel buffer slots are formed on the sliding frame 43 along its lateral shifting direction. A buffer conveyor 46 is provided at the bottom of each buffer slot. The structure of the buffer conveyor 46 is the same as that of the feeding conveyor 24. A buffer chain drive assembly 47 is provided at the power input end of the buffer conveyor 46. The buffer chain drive assembly 47 has the same structure as the first feeding chain drive assembly 23. The driven sprocket of the buffer conveyor 46 meshes with the chain of the buffer chain drive assembly 47, so that the buffer chain drive assembly 47 can drive the corresponding buffer conveyor 46 to run after the bridge drive mechanism 3 is engaged. Multiple sets of buffer conveyors 46 and buffer chain drive assemblies 47 are installed on buffer output brackets 48 set on sliding frame 43. Buffer support brackets 49 are set on the rear side of buffer output brackets 48. Buffer support brackets 49 are fixed on sliding frame 43. Their support surface is basically consistent with the inclination direction of feed support bracket 26. Multiple rolling support members are set at intervals along the moving direction of insulating glass 8 so that insulating glass 8 maintains a basically consistent backward tilting posture after entering the buffer groove.

[0042] When a hollow glass 8 needs to be stored in an empty buffer slot, the telescopic support 44 first retracts from the positioning cylinder 45. The buffer shifting drive motor 42 drives the sliding frame 43 to move laterally through the first gear 421 and the first rack 431, aligning the target buffer slot with the output position of the feeding conveyor 24. After the target buffer slot is in place, the telescopic support 44 re-inserts into the positioning cylinder 45. Subsequently, the bridge transmission mechanism 3 enters the engagement position, causing the first bridge sprocket 33 to mesh with the chain of the first feeding chain transmission assembly 23, and the second bridge sprocket 34 to mesh with the chain of the buffer chain transmission assembly 47. The buffer chain transmission assembly 47 of the target buffer slot forms a transmission engagement. At this time, the feeding conveyor 24 and the buffer conveyor 46 run in a compatible direction. The bottom edge of the hollow glass 8 smoothly transitions from the feeding output bracket 25 to the buffer conveyor 46 and the buffer output bracket 48, and the rear side of the glass gradually transitions from the feeding support bracket 26 to the buffer support bracket 49. After the insulating glass 8 is fully inserted into the target buffer slot, the buffer conveyor 46 stops, the bridge transmission mechanism 3 first exits the engagement position, the telescopic support 44 then exits the positioning cylinder 45, and the sliding frame 43 can then switch to the next buffer station.

[0043] The gantry transfer mechanism 5 includes a gantry support frame 51. The two side columns of the gantry support frame 51 are fixed to both sides of the main support frame 1. Its upper transverse bearing structure spans the fixed material-retrieving position of the multi-station buffer mechanism 4 and extends to the rear stacking position. A transverse moving part is slidably mounted on the gantry support frame 51. The base of the transverse drive motor 52 is fixedly connected to the transverse moving part, allowing the transverse drive motor 52 to move with the transverse moving part while its base remains fixed relative to it. The drive end of the transverse drive motor 52 is connected to a first drive rod 53 via a coupling. Second gears 531 are provided at both ends of the first drive rod 53. The second gears 531 mesh with a second rack 511 provided on the upper side of the gantry support frame 51. When the transverse drive motor 52 drives the first drive rod 53 to rotate, the second gears 531 on both sides roll synchronously along the second rack 511, thereby causing the transverse moving part to reciprocate between the buffer material-retrieving position and the stacking position along the gantry support frame 51.

[0044] A lifting drive component 54 is fixedly installed on the transverse moving part. The first drive rod 53 is rotatably supported on the transverse moving part through a bearing seat. The lifting drive component 54 and the first drive rod 53 are independent of each other. The lifting drive component 54 moves with the transverse moving part but does not rotate with the first drive rod 53. The driving direction of the lifting drive component 54 is set in the vertical direction. The output end of the lifting drive component 54 is connected to the lifting guide frame 55 located below the first drive rod 53. In this embodiment, the lifting drive component 54 preferably adopts a servo motor in conjunction with a screw drive mechanism, so as to control the lifting height, speed and the final position of the descent. It can also be a cylinder or hydraulic cylinder that can realize extension and retraction. The output end of the lifting drive component 54 is connected to the lifting guide frame 55. The lower part of the lifting guide frame 55 is provided with a bottom support fork 56. The bottom support fork 56 has at least two supporting parts arranged at intervals along the bottom edge of the hollow glass 8. A corresponding space for the support fork is left between the buffer output bracket 48 and the adjacent buffer support position, so that the bottom support fork 56 can enter below the bottom edge of the hollow glass 8 after the lifting guide frame 55 descends.

[0045] A vacuum adsorption assembly 57 is movably mounted on the side of the lifting guide frame 55 facing the insulating glass panel 8. The vacuum adsorption assembly 57 includes an adsorption mounting frame and multiple vacuum suction cups spaced apart along the width and height of the glass. Each vacuum suction cup is connected to a vacuum generating device through a vacuum pipeline. A small cylinder 551 is also mounted on the lifting guide frame 55. The drive end of the small cylinder 551 is connected to the adsorption mounting frame. During material retrieval, the transverse drive motor 52 first moves the lifting drive component 54 to the fixed material retrieval position corresponding to the target buffer slot. The lifting guide frame 55 is lowered until the upper surface of the bottom support fork 56 is slightly lower than the clearance height of the bottom edge of the insulating glass 8, so that the bottom support fork 56 enters below the bottom edge of the insulating glass 8 but does not bear weight for the time being; then the buffer conveyor 46 continues to convey the insulating glass 8 to the fixed material picking position corresponding to the vacuum adsorption component 57 and stops. The lifting drive component 54 then drives the lifting guide frame 55 to rise slightly, so that the bottom support fork 56 contacts and gently supports the insulating glass 8. Then the small cylinder 551 pushes the vacuum adsorption component 57 to adhere to and adsorb the surface of the insulating glass 8. The bottom support fork 56 bears the main vertical weight of the insulating glass 8, and the vacuum adsorption component 57 mainly restricts the glass from tilting forward and swaying during the transportation process. The lifting drive component 54 then drives the lifting guide frame 55 to rise, so that the weight of the glass is transferred from the buffer conveyor 46 and the buffer output bracket 48 to the bottom support fork 56, and then the transverse drive motor 52 moves the insulating glass 8 to the rear stacking position through the first drive rod 53, the second gear 531 and the second rack 511.

[0046] The palletizing clearance mechanism 6 includes a movable frame 61, which is connected to the rear of the main support frame 1 via a linear guide rail and a slider arranged along the direction of increasing glass stack thickness, allowing the movable frame 61 to retract linearly relative to the main support frame 1. A support frame 611 is also installed at the upper end of the movable frame 61. A servo motor 62 for driving the movable frame 61 to retract is fixed at a fixed support position at the rear of the main support frame 1. The output end of the servo motor 62 is connected to a lead screw 63 extending along the retraction direction of the movable frame 61. Both ends of the lead screw 63 are rotatably supported on the main support frame 1 via bearing seats, and a nut seat threadedly engaged with the lead screw 63 is fixed to the movable frame 61. When the servo motor 62 drives the lead screw 63 to rotate, the threaded transmission between the lead screw 63 and the nut seat converts the rotational motion into the retraction motion of the movable frame 61 along the linear guide rail.

[0047] The stacking clearance mechanism 6 also includes multiple stacking support rails 69, which are all fixedly connected to the stacking area of ​​the main support frame 1 and remain fixed relative to the main support frame 1, without retracting with the moving frame 61. The multiple stacking support rails 69 are spaced apart from each other along the support direction of the bottom edge of the insulating glass 8, and a clearance gap is formed between adjacent stacking support rails 69 corresponding to the bottom support fork 56, so that the bottom support fork 56 can exit between adjacent stacking support rails 69 without physically overlapping with the stacking support rails 69. A transmission component 610 is provided on the stacking support rail 69, and the transmission component 610 is rotatably supported on the corresponding stacking support rail 69 through a rotating shaft 6101. The belt 6102 sleeved on the outside of the rotating shaft 6101 is used to directly contact the bottom edge of the insulating glass 8. 610 can also be a gear belt and gear combination, with the outer surface of the gear belt contacting the bottom edge of the insulating glass 8. The upper surface of the belt 6102 is higher than the upper surface of the stacking support rail 69, and the transmission component 610 provides a rotatable rolling contact surface for the bottom edge of the insulating glass 8.

[0048] After the gantry transfer mechanism 5 transports the insulating glass 8 to the corresponding position on the support frame 611, during the initial descent phase, the weight of the insulating glass 8 is mainly borne by the bottom support fork 56, while the vacuum adsorption assembly 57 maintains the glass's posture. As the insulating glass 8 continues to descend, its bottom edge first forms effective contact with the upper working surface of the belt 6102, and the transmission component 610 takes over the vertical load of the glass. For the first insulating glass 8, its rear side panel directly abuts against the inclined support frame 611; for the second and subsequent insulating glass 8, its rear side panel abuts against the front surface of the stacked glass, and the existing glass stack transmits the holding effect to the support frame 611. Once the belt 6102 has effectively borne the bottom load of the glass and the rear side of the glass has formed a stable support, the vacuum adsorption assembly 57 releases the negative pressure and is driven back by the small cylinder 551. Subsequently, the lifting drive component 54 continues to drive the lifting guide frame 55 downward, causing the bottom support fork 56 to retract downward from the clearance gap between adjacent stacking support rails 69. Thus, after the insulated glass 8 has established both bottom support and rear support, the vacuum adsorption is released and the bottom support fork 56 is removed, completing the handover to the stacking and yielding mechanism 6.

[0049] To ensure the glass stack maintains a relatively fixed front-side interleaving position as the thickness increases piece by piece, the servo motor 62 drives the lead screw 63 to rotate after each insulated glass 8 is interleaved, causing the moving frame 61 to retract a distance adapted to the current glass thickness or the preset stacking pitch. The retraction of the moving frame 61 also synchronously drives the transmission component 610. Specifically, a bottom rack 64 is provided along the retraction direction of the moving frame 61, fixedly connected to the moving frame 61 and retracting synchronously with it; the transmission gear 65 meshing with the bottom rack 64 is rotatably supported on the main support frame 1 via a rotating shaft and bearings. The output side of the transmission gear 65 is connected to the transversely arranged transmission rod 67 via the transmission chain 66. The transmission rod 67 is rotatably supported on the main support frame 1 via a bearing seat. The transmission rod 67 is connected to the transmission sprockets 68 corresponding to each stacking support rail 69. The transmission sprockets 68 are rotatably supported on the stacking support rail 69 via a rotating shaft. A transmission gear 681 is coaxially fixed on the corresponding rotating shaft. A transmission gear 682 meshing with the transmission gear 681 is also rotatably arranged on the stacking support rail 69. The transmission gear 682 is connected to one of the rotating shafts 6101. The winding direction of the transmission chain 66 and the meshing direction of the transmission gears 681 and 682 are set as follows: when the moving frame 61 moves in the retraction direction, the upper working surface of the belt 6102 moves in the same direction as the retraction direction of the moving frame 61.

[0050] When the movable frame 61 retracts relative to the main support frame 1 under the action of the lead screw 63, the bottom rack 64 mounted on the movable frame 61 undergoes linear displacement relative to the fixed transmission gear 65. Since the transmission gear 65 always maintains meshing with the bottom rack 64, the transmission gear 65 rotates while the movable frame 61 translates. The resulting rotational power is transmitted sequentially through the transmission chain 66, transmission rod 67, transmission sprocket 68, transmission gear one 681, and transmission gear two 682 to the rotating shaft 6101. The rotating shaft 6101 drives the belt 6102 to run, causing the transmission component 610 to rotate in a direction that facilitates the movement of the bottom edge of the insulating glass 8 with the retraction direction of the movable frame 61. Thus, a single drive of the servo motor 62 generates two coordinated actions: the lead screw 63 drives the moving frame 61 to retract as a whole, making room for the glass stack that is constantly increasing in thickness; the displacement of the bottom rack 64 relative to the fixed transmission gear 65, which moves with the moving frame 61, mechanically derives the active movement of the belt 6102, which provides synchronous movement assistance to the bottom edge of the glass stack.

[0051] By determining the pitch circle relationship between the transmission gear 65 and the bottom rack 64, and selecting the transmission ratio between the transmission chain 66, the transmission sprocket 68, and the transmission component 610, the circumferential movement distance of the transmission component 610 can be matched with the single retraction distance of the moving frame 61. Thus, when the glass stack gradually moves backward under the combined action of the retraction constraint of the support frame 611 and the active movement of the upper working surface of the belt 6102, the bottom edge of the glass no longer relies primarily on passive sliding on the supporting surface. Instead, it gains an auxiliary movement trend consistent with the retraction direction under the rolling action of the transmission component 610. This reduces the phenomenon of the upper part of the glass stack retracting while the bottom edge lags behind, and reduces dragging between adjacent glass pieces, changes in the glass stack's tilt angle, and bottom edge jamming. During the stacking process, the Nth insulating glass unit 8 is delivered to the stacking position by the gantry transfer mechanism 5 and the transfer is completed. Subsequently, the servo motor 62 drives the moving frame 61 to retract and the transmission component 610 to roll synchronously, forming a new transfer space for the N+1th insulating glass unit 8. The above process is repeated until the predetermined stacking quantity is reached. After the predetermined stacking quantity is reached, the servo motor 62 stops and the moving frame 61 remains in its current retracted position. An external transfer trolley with forks can then enter the stacking area, allowing the forks to extend into the bottom of the glass stack through the gap between adjacent stacking support rails 69. While avoiding the stacking support rails 69 and the transmission component 610, the trolley lifts the entire stack of insulating glass units 8, causing the bottom edge of the glass stack to detach from the belt 6102. The external transfer trolley maintains the tilted posture of the glass stack through its own holding or clamping structure, and then removes the entire stack of insulating glass units 8 from the equipment and transfers it to the subsequent packaging, hoisting, or logistics station.

[0052] Furthermore, a support member 6103 is provided between the belt 6102 and the two rotating shafts 6101. The support member 6103 is fixedly connected to the inner side of the stacking support rail 69. The support member 6103 is used to support the belt 6102, so that the upper surface of the belt 6102 is always higher than the upper surface of the stacking support rail 69, so as to stabilize the belt 6102 in conveying multiple insulating glass units 8. At the same time, multiple rolling columns 6104 are rotatably arranged on the upper side of the support member 6103. The upper end surface of the multiple rolling columns 6104 is slightly higher than the upper surface of the support member 6103 and contacts the belt 6102, so as to reduce the friction between the belt 6102 and the support member 6103 and facilitate the conveying of the belt 6102. Meanwhile, grooves 6105 can be selectively opened on the outer side of the belt 6102. The grooves 6105 preferably correspond to the bottom of the inclined single insulating glass unit 8 to increase the friction between the glass group and the belt 6102 and prevent the glass group from slipping off.

[0053] The technical scope of this invention is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this invention, and all such modifications and variations should fall within the protection scope of this invention.

Claims

1. An automated buffering, palletizing, and conveying device for finished insulating glass products, characterized in that, The system includes a main support frame, on which are mounted a feeding conveyor, a multi-station buffer mechanism, a gantry transfer mechanism, and a stacking clearance mechanism. The gantry transfer mechanism is used to transfer insulating glass panes one by one from the multi-station buffer mechanism to the stacking clearance mechanism. The stacking clearance mechanism includes a movable frame capable of retracting along the direction of increasing glass stack thickness and a bottom support conveying assembly located at the bottom of the glass stack. The movable frame is equipped with a support for holding the glass stack and is connected to a retraction drive assembly. A linkage transmission assembly is provided between the movable frame and the bottom support conveying assembly. The linkage transmission assembly is used to convert the retraction displacement of the movable frame into the conveying motion of the bottom support conveying assembly, causing the bottom support conveying assembly to move the bottom edge of the glass stack in the same direction as the retraction direction of the movable frame.

2. The automated buffering, palletizing, and conveying device for finished insulating glass products according to claim 1, characterized in that: The retraction drive assembly includes a servo motor and a lead screw that is driven by the servo motor. The moving frame is provided with a nut seat that is threadedly engaged with the lead screw, so that when the servo motor drives the lead screw to rotate, it drives the moving frame and the support frame to retract along the direction of increasing glass stack thickness.

3. The automated buffering, palletizing, and conveying device for finished insulating glass products according to claim 1, characterized in that: The linkage transmission assembly includes a bottom rack arranged along the retraction direction of the moving frame and fixedly connected to the moving frame, and a transmission gear rotatably supported on the main support frame and meshing with the bottom rack. The bottom rack moves relative to the transmission gear when the moving frame retracts, so as to drive the transmission gear to rotate.

4. The automated buffering, palletizing, and conveying device for finished insulating glass products according to claim 3, characterized in that: The output side of the transmission gear is connected to the horizontally arranged transmission rod via a transmission chain. The transmission rod is rotatably supported on the main support frame and is connected to the transmission sprockets at multiple support positions at the bottom of the glass stack, so as to transmit the rotational power of the transmission gear to the multiple support positions at the bottom of the glass stack.

5. The automated buffering, palletizing, and conveying device for finished insulating glass products according to claim 4, characterized in that: The transmission sprocket and the transmission gear are coaxially connected, the first transmission gear meshes with the second transmission gear, and the second transmission gear is connected to the rotating shaft of the bottom support conveyor assembly. The bottom support conveyor assembly also includes a belt wrapped around the outside of the rotating shaft. The transmission direction of each transmission component is set so that when the moving frame retracts, the upper working surface of the belt moves in the same direction as the retraction direction of the moving frame.

6. The automated buffering, palletizing, and conveying device for finished insulating glass products according to claim 1, characterized in that: The palletizing clearance mechanism is provided with multiple palletizing support rails spaced apart from each other. The palletizing support rails are fixed relative to the main support frame, and a clearance gap is formed between adjacent palletizing support rails to allow the bottom support fork of the gantry transfer mechanism to retract. The bottom support conveying assembly includes a transmission component disposed on the palletizing support rail. The transmission component has a rotating shaft and a belt wrapped around the outside of the rotating shaft. The upper working surface of the belt is higher than the upper surface of the palletizing support rail and is used to support the bottom edge of the insulating glass.

7. The automated buffering, palletizing, and conveying device for finished insulating glass products according to claim 6, characterized in that: A support member connected to the stacking support rail is provided between the belt and the two rotating shafts. Multiple rolling columns are rotatably arranged on the upper side of the support member. The rolling columns contact the inner surface of the belt to form a rolling support for the belt. The outer surface of the belt is provided with a groove corresponding to the bottom edge of the insulating glass.

8. The automated buffering, palletizing, and conveying device for finished insulating glass products according to claim 1, characterized in that: The multi-station buffer mechanism is provided with a buffer support frame and a sliding frame that slides laterally relative to the buffer support frame. The buffer repositioning drive motor drives the sliding frame to reposition the buffer station through a first gear and a first rack that mesh with each other. The buffer support frame is provided with a telescopic support member, and the sliding frame is provided with a positioning cylinder that is inserted and cooperates with the telescopic support member at the corresponding buffer station, so that the telescopic support member is disengaged from the positioning cylinder when the sliding frame is repositioned, and is inserted into the positioning cylinder to position and support the sliding frame after the target buffer station is in place.

9. The automated buffering, palletizing, and conveying device for finished insulating glass products according to claim 1, characterized in that: A bridge transmission mechanism is provided between the feeding conveying mechanism and the multi-station buffer mechanism. The bridge transmission mechanism is provided with a second feeding chain transmission assembly driven to rise and fall by a lifting actuator. A first bridge sprocket and a second bridge sprocket are respectively provided at both ends of the second feeding chain transmission assembly. The first bridge sprocket can selectively engage with the first feed chain drive component of the feed conveying mechanism, and the second bridge sprocket can selectively engage with the buffer chain drive component corresponding to the target buffer slot, so as to transmit the power of the feed conveying mechanism to the corresponding buffer conveyor after the target buffer slot has been repositioned.

10. The automated buffering, palletizing, and conveying device for finished insulating glass products according to claim 1, characterized in that: The gantry transfer mechanism is equipped with a lifting drive component. The output end of the lifting drive component is connected to a lifting guide frame. The lower part of the lifting guide frame is equipped with a bottom support fork for supporting the insulating glass from below the bottom edge of the insulating glass. A vacuum adsorption component is movably installed on the side of the lifting guide frame facing the insulating glass panel, and a small cylinder is provided for driving the vacuum adsorption component to move closer to or away from the insulating glass panel, so that the bottom support fork bears the main vertical load of the insulating glass. The vacuum adsorption component forms an anti-tilting and anti-sway constraint for the insulating glass.

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