PVC raw material automatic three-dimensional warehouse roadway stacking and transferring device

Abstract

This invention relates to the field of automated warehousing and logistics equipment technology, and discloses an automated three-dimensional warehouse aisle stacking and transfer device for PVC raw materials. The invention includes a transfer robotic arm, a gripping assembly, and a lifting and transfer assembly. The gripping assembly has multiple sets of multi-stage telescopic support mechanisms formed by multiple slidingly connected support sections inside its gripping frame. Deployment springs are provided between adjacent support sections. The gripping frame also has a traction mechanism composed of a traction belt and a winding mechanism. The support mechanism can extend into the bottom of the bagged material through the gap between the conveyor rollers and form a stable support through the end positioning block and end positioning groove. This allows the support mechanism to retract inwards and withdraw after the bagged material falls onto the pallet, reducing scratching and puncture to the bottom and sides of the bag, avoiding placement deviations caused by suspended release, and improving stacking accuracy and transfer stability.

Description

Technical Field

[0001] This invention relates to the field of automated warehousing and logistics equipment, and in particular to an automated three-dimensional warehouse aisle stacking and transfer device for PVC raw materials. Background Technology

[0002] In the process of palletizing and transferring bagged materials, in order to improve the efficiency of transferring bagged materials from conveying equipment to pallets, a robotic arm in conjunction with a fork-type gripping mechanism is usually used for picking and placing. The fork-type gripping mechanism is generally equipped with several forks or supporting components at the end of the robotic arm that can extend into the bottom of the bagged material. The forks lift the bag from the bottom of the bag, and then the robotic arm moves the bagged material to the top of the pallet to complete the palletizing. This method can avoid applying a large clamping force directly to the flexible bag, so it is widely used in automated palletizing equipment for bagged materials such as woven bags and packaging bags.

[0003] When releasing bagged materials, existing forklift gripping mechanisms typically require the forks and grippers located at the bottom or sides of the bag to open or retract. Since the forks or grippers themselves have a certain length, if the bagged material is completely dropped onto the pallet or stacked materials first, it is easy for them to scrape, press, or even puncture the bottom and sides of the bag during the opening or retraction process. Therefore, in actual operation, it is often necessary to maintain a certain distance between the bagged material and the supporting surface, and release the support or gripper in a suspended state before dropping the bagged material. However, the bagged material is flexible and the internal material is easy to flow. After being released in the air, it is easy to cause deviation, tilting, or changes in the landing point, resulting in inaccurate stacking position. Especially in the process of multi-layer tight stacking, it is also easy to affect the arrangement stability of subsequent bagged materials. Summary of the Invention

[0004] The technical problem this invention aims to solve is that existing automated stacking and transfer processes for bagged PVC raw materials often employ fork-type gripping mechanisms for lifting and releasing. When unloading, these gripping mechanisms require the forks or jaws to extend or retract to the sides. If the bagged material has already contacted the pallet or lower layer of material, it can easily cause scratches, compression, or even punctures to the bottom and sides of the bag. Therefore, release is usually required while the bagged material is suspended in the air. However, when the bagged material is suspended and dropped, it is prone to positional shifts, resulting in poor stacking positioning accuracy and stacking stability. To address this, we propose an automated three-dimensional warehouse aisle stacking and transfer device for PVC raw materials.

[0005] To achieve the above objectives, this application adopts the following technical solution: an automated three-dimensional warehouse aisle stacking and transfer device for PVC raw materials, comprising a transfer robotic arm, a gripping component installed at the end of the transfer robotic arm, and a lifting and transfer component. The lifting and transfer component is equipped with forks for carrying pallets. The gripping component includes a gripping frame, with multiple sets of parallel multi-stage telescopic support mechanisms spaced apart at the lower interior of the gripping frame. Each set of multi-stage telescopic support mechanisms includes multiple support sections that slide sequentially in the same direction. One end of the support section is fixedly connected to the gripping frame. Adjacent support sections slide together through sliding grooves and guide rails, and a deployment spring is provided between adjacent support sections to push the corresponding support section to extend outward. The outermost support section is equipped with an end positioning block. The gripping frame has an end positioning groove on the side away from the fixed end that cooperates with the end positioning block. The gripping frame is also equipped with a traction mechanism for driving the multi-stage telescopic support mechanism to retract. The traction mechanism includes a traction belt and a winding mechanism. The traction belt is arranged along the multi-stage telescopic support mechanism and forms a traction cooperation with the outermost support section. The winding mechanism is connected to the traction belt.

[0006] Preferably, each multi-stage telescopic support mechanism includes multiple support sections, including a fixed support section, at least one intermediate support section, and an end support section. The fixed support section is fixedly connected to the gripping frame, the end support section is located at the end away from the fixed support section, and the intermediate support section is slidably disposed between the fixed support section and the end support section.

[0007] Preferably, spring mounting slots are provided on opposite sides of two adjacent support sections, and the unfolded spring is installed between the two oppositely arranged spring mounting slots, so that each intermediate support section and end support section has a tendency to move away from the fixed support section.

[0008] Preferably, each support section is provided with a belt receiving groove for accommodating the traction belt, the end support section is provided with a belt passing groove for the traction belt to pass through, a guide belt shaft is rotatably installed in the belt passing groove, a guide belt frame is provided on the edge of the fixed support section, one end of the traction belt is connected to the gripping frame, and the other end is connected to the winding mechanism after being guided by the belt receiving groove, the guide belt shaft and the guide belt frame.

[0009] Preferably, each intermediate support section is provided with a sequential limiting mechanism, while the end support section is not provided with a sequential limiting mechanism. The sequential limiting mechanism is used to restrict the corresponding intermediate support section from retracting towards the fixed support section before its outer support section retracts to the predetermined position.

[0010] Preferably, the sequential limiting mechanism includes a triggering slide cavity and a locking slide cavity disposed inside the support section. An unlocking trigger rod is slidably disposed inside the triggering slide cavity. One end of the unlocking trigger rod extends out of the support section and faces the adjacent support section to its outside. The end of the unlocking trigger rod located inside the triggering slide cavity is connected to a pressing wedge.

[0011] Preferably, the unlocking trigger rod is provided with a first limiting block, and a trigger reset spring is provided between the first limiting block and the inner wall of the trigger slide cavity. The trigger reset spring is used to push the unlocking trigger rod to extend toward the adjacent support section.

[0012] Preferably, a locking pin is slidably disposed in the locking slide cavity, and a locking groove that cooperates with the locking pin is provided on the adjacent support section. One end of the locking pin located in the locking slide cavity is connected to a pressure-bearing inclined block. A locking return spring is provided between the pressure-bearing inclined block and the inner wall of the locking slide cavity. The pressing inclined block and the pressure-bearing inclined block are engaged by their corresponding inclined surfaces.

[0013] Preferably, when the adjacent outer support section retracts to the predetermined position, it presses against the unlocking trigger rod, causing the unlocking trigger rod to move the squeezing wedge. The squeezing wedge, through its engagement with the inclined surface of the pressed wedge, causes the locking pin to exit the locking groove, thereby releasing the retraction restriction of the corresponding middle support section, so that multiple support sections can be unlocked and retracted sequentially from the outside to the inside.

[0014] Preferably, the bottom of the gripping frame is provided with a clearance area corresponding to the position of the conveying roller, and multiple sets of multi-stage telescopic support mechanisms are respectively corresponding to the gap between adjacent conveying rollers, so that when the gripping frame moves to the material to be transferred on the conveying roller, each multi-stage telescopic support mechanism can extend from between adjacent conveying rollers into the bottom of the material to be transferred, and together form a support structure for supporting the material to be transferred after the end positioning block enters the corresponding end positioning groove.

[0015] The technical effects and advantages of this invention are as follows:

[0016] This invention utilizes multiple sets of multi-stage telescopic support mechanisms located below the gripper frame. These support sections extend from between adjacent conveyor rollers into the bottom of PVC raw material bags, forming stable end supports after full extension. During unloading, the bagged material is accurately placed on a pallet or stacked material. Then, a traction mechanism drives the support sections to retract inwards along the bottom of the bagged material. Compared to traditional forks or grippers that open and retract to the sides, this method minimizes scratching, pressure, and puncture to the bottom and sides of the bag. Simultaneously, the traction belt is arranged along the support mechanism, forming a support contact area with the bottom of the bagged material. As the support sections gradually retract, the contact area between the traction belt and the bagged material shortens and withdraws synchronously, preventing lateral stretching or pulling of the bag. This reduces material accumulation and deformation within the bag, allowing the bagged material to detach stably from the pallet or lower layer of material, avoiding positional shifts caused by suspended release and improving stacking accuracy and stability.

[0017] This invention controls multiple support sections to unlock and retract sequentially from the outside in through a sequential limiting mechanism. This allows the outer support section to complete a certain stroke before releasing the retraction restriction of adjacent support sections, preventing sudden force changes, jamming, and instantaneous dragging of bagged materials caused by simultaneous retraction of multiple support sections. Automatic extension of the support sections is achieved through a deployment spring, and the extension and retraction directions are stably guided by sliding grooves and guide strips. Simultaneously, end positioning blocks and end positioning grooves support and position the fully extended end of the support mechanism. This design balances a large support range, a small storage space, and structural stability during the support process, making it suitable for continuous gripping, transfer, and stacking of PVC raw material bags in automated warehouses. Attached Figure Description

[0018] 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. In the drawings, the same reference numerals are used to refer to the same parts:

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the robotic arm and gripping component of the present invention;

[0021] Figure 3 This is a schematic diagram of the gripping component of the present invention;

[0022] Figure 4 This is another schematic diagram of the gripping frame of the present invention;

[0023] Figure 5 This is a schematic diagram of the multi-stage telescopic support mechanism of the present invention;

[0024] Figure 6 This is a schematic diagram of the structure of the single-group multi-stage telescopic support mechanism of the present invention;

[0025] Figure 7 This is an exploded structural diagram of the support joint and the unfolding spring of the present invention;

[0026] Figure 8 This is a top view of the multi-stage telescopic support mechanism of the present invention.

[0027] Figure 9 This is a schematic diagram of the sequential limiting mechanism of the present invention.

[0028] Legend: 1. Gripping frame; 2. End positioning groove; 3. Support section; 4. Sliding groove; 5. Guide slide; 6. Spring mounting groove; 7. Unwinding spring; 8. Belt receiving groove; 9. Belt passing groove; 10. Guide shaft; 11. Guide frame; 12. Traction belt; 13. End positioning block; 14. Rewinding mechanism; 15. Locking groove; 16. Trigger slide cavity; 17. Locking slide cavity; 18. Unlocking trigger rod; 19. Compression wedge; 20. First limit block; 21. Trigger reset spring; 22. Compression wedge; 23. Locking pin; 24. Locking reset spring. Detailed Implementation

[0029] 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.

[0030] Reference Figures 1-9 As shown, the present invention provides a technical solution: an automated three-dimensional warehouse aisle stacking and transfer device for PVC raw materials, which includes a transfer robotic arm, a gripping component installed at the end of the transfer robotic arm, and a lifting transfer component for receiving and transferring materials. The lifting transfer component is equipped with lifting and moving forks, and the forks carry a pallet for placing materials. The gripping component includes a gripping frame 1. The transfer robotic arm is used to drive the gripping frame 1 to move between the conveyor roller and the lifting transfer component and to adjust the height and posture of the gripping frame 1 so that the gripping frame 1 can move to the material to be transferred placed on the conveyor roller, and after completing the support, transfer the material to be transferred to the pallet on the forks.

[0031] The gripper 1 forms a frame structure for accommodating the upper and side parts of the material to be transferred. The bottom of the gripper 1 is provided with a clearance area corresponding to the position of the conveyor roller, so that when the gripper 1 moves downward to the height of the material to be transferred, it can avoid the conveyor roller. Multiple sets of multi-stage telescopic support mechanisms are arranged at intervals along the support direction of the material to be transferred inside the lower part of the gripper 1. Each set of multi-stage telescopic support mechanisms is arranged parallel to each other and corresponds to the gap between adjacent conveyor rollers, so that when the multi-stage telescopic support mechanism extends, it can enter the bottom of the material to be transferred from between adjacent conveyor rollers without interfering with the conveyor roller.

[0032] Each multi-stage telescopic support mechanism is composed of multiple support sections 3 that slide sequentially in the same direction. One support section 3 located on one side of the gripping frame 1 and fixedly connected to the gripping frame 1 constitutes a fixed support section. Multiple support sections 3 located between the fixed support section and the outermost support section constitute an intermediate support section. The support section 3 located at the end away from the fixed support section constitutes an end support section. Each support section 3 is arranged in a step-by-step nested manner along the telescopic direction, so that the multi-stage telescopic support mechanism can switch between the retracted state and the extended state. The multiple support sections 3 together form a strip-shaped support structure that can extend into the bottom of the material to be transferred.

[0033] Adjacent support sections 3 are slidably connected by sliding grooves 4 and guide rails 5. Sliding grooves 4 and guide rails 5 extending along their length are formed on the inner and outer sides of each support section 3, respectively. The guide rails 5 on adjacent support sections 3 are slidably set in the corresponding sliding grooves 4 to limit the lateral offset and rotation between adjacent support sections 3 and guide them to move along the telescopic direction of the support mechanism. The outer side of the fixed support section does not need to be provided with guide rails 5 for continuing to connect support sections 3. The end support section constitutes the outermost movable part of the entire multi-stage telescopic support mechanism.

[0034] Spring mounting slots 6 are provided on opposite sides of adjacent support sections 3, and a deployment spring 7 is installed between the two corresponding spring mounting slots 6. The deployment spring 7 is arranged along the extension and retraction direction of the support mechanism and applies an elastic force that moves away from each other to the adjacent support sections 3. This makes each movable support section 3 have an outward extension tendency when it is not subjected to contraction traction force, and enables the multi-stage telescopic support mechanism to automatically switch from the contracted state to the extended state after the winding mechanism 14 releases the traction belt 12.

[0035] The gripping frame 1 has an end positioning groove 2 on the side away from the fixed support section, which corresponds to each group of multi-stage telescopic support mechanisms. The outer end of the end support section is provided with an end positioning block 13. When the multi-stage telescopic support mechanism extends to a predetermined length, the end positioning block 13 on the end support section enters the corresponding end positioning groove 2. Thus, the gripping frame 1 positions and supports the end of the multi-stage telescopic support mechanism, so that the extended multi-stage telescopic support mechanism changes from a cantilever state where only the fixed end is subjected to force to a support state where both ends are constrained, thereby reducing the bending, offset and deflection caused by the multiple support sections 3 bearing the weight of the material.

[0036] The gripper 1 is equipped with a traction mechanism for driving the retraction of each group of multi-stage telescopic support mechanisms. The traction mechanism includes a traction belt 12 and a winding mechanism 14 located on the outside of the gripper 1. One end of the traction belt 12 is fixed relative to the gripper 1. The traction belt 12 is wound along the length of the multi-stage telescopic support mechanism and forms a traction engagement with the end support section. The top and bottom of the multiple support sections 3 are respectively provided with belt body receiving grooves 8 for accommodating and guiding the traction belt 12. The end support section is provided with a belt passage groove 9 for the traction belt 12 to pass through. A guide belt shaft 10 is rotatably installed in the belt passage groove 9. A guide belt frame 11 is provided on the corresponding edge of the fixed support section. After being guided by the belt body receiving groove 8, the guide belt shaft 10 and the guide belt frame 11, the traction belt 12 extends to the outside of the gripper 1 and connects with the winding mechanism 14, so that when the winding mechanism 14 tightens the traction belt 12, a traction force is applied to the end support section towards the side of the fixed support section.

[0037] To prevent multiple intermediate support sections from retracting randomly during the winding mechanism 14's traction, each intermediate support section is equipped with a sequence limiting mechanism to control the sequential retraction of the support sections 3. The outermost end support section is not equipped with this sequence limiting mechanism. This allows the end support section to retract first relative to its inner adjacent intermediate support section when the winding mechanism 14 begins to tighten the traction belt 12, while the remaining intermediate support sections remain locked temporarily and are unlocked sequentially from the outside to the inside as the outer support sections retract step by step.

[0038] The sequential limiting mechanism includes a triggering slide cavity 16 and a locking slide cavity 17 formed inside the support section 3. An unlocking trigger rod 18 is slidably disposed inside the triggering slide cavity 16. One end of the unlocking trigger rod 18 protrudes from the support section 3 toward the side of the adjacent support section on the outside. A first limiting block 20 is disposed on the unlocking trigger rod 18. A triggering reset spring 21 is disposed between the first limiting block 20 and the inner wall of the triggering slide cavity 16. The triggering reset spring 21 is used to push the unlocking trigger rod 18 to maintain its initial outward extension position. One end of the unlocking trigger rod 18 located inside the support section 3 is connected to a pressing wedge 19 so that after the adjacent support section 3 on the outside retracts to the predetermined position, it can press against the unlocking trigger rod 18 and drive the pressing wedge 19 to move synchronously.

[0039] The locking slide cavity 17 is arranged in a direction intersecting the extension and retraction direction of the support section 3. A locking pin 23 is slidably arranged in the locking slide cavity 17. One end of the locking pin 23 can extend from the side wall of the support section 3 and be inserted into the locking groove 15 on the adjacent support section 3. The end of the locking pin 23 located inside the locking slide cavity 17 is fixedly connected to the pressure-bearing inclined block 22. A locking return spring 24 is arranged between the pressure-bearing inclined block 22 and the inner wall of the locking slide cavity 17. The locking return spring 24 is used to push the locking pin 23 to move in the direction of the locking groove 15. The pressing inclined block 19 and the pressure-bearing inclined block 22 are provided with corresponding inclined surfaces, so that after the unlocking trigger rod 18 is pressed by the outer support section 3, the locking pin 23 can be pulled out or pushed away from the locking groove 15 through the relative sliding of the two inclined surfaces, so as to release the locking relationship between the adjacent support sections 3.

[0040] When the multi-stage telescopic support mechanism is in the extended state, the locking pins 23 on each intermediate support section are engaged with the corresponding locking grooves 15 under the action of the locking return springs 24, thereby restricting each intermediate support section from retracting prematurely towards the fixed support section without being triggered. The end support section, due to the absence of a sequence limiting mechanism, remains in a state where it can retract preferentially. When the winding mechanism 14 tightens the traction belt 12, the traction belt 12 first drives the end support section to move inward. After the end support section retracts to the predetermined position of the adjacent intermediate support section on its inner side, it presses against the unlocking trigger rod 18 on the intermediate support section. The unlocking trigger rod 18 drives the pressing inclined block 19 to move and pushes the pressed inclined block 22 and the locking pin 23 to overcome the elastic force of the locking return springs 24 through the inclined surface, causing the locking pin 23 to exit the corresponding locking groove 15, thereby giving the intermediate support section the freedom to retract inward.

[0041] As the winding mechanism 14 continues to tighten the traction belt 12, the end support section that has already retracted and the intermediate support section that has just been unlocked continue to move together toward the fixed support section. When the intermediate support section further retracts to the trigger position of the next intermediate support section inside it, it presses against the next set of unlocking trigger rods 18 again, and in the same way, the next set of locking pins 23 exits the corresponding locking groove 15. Thus, the retraction is completed step by step in the order of the end support section, the outermost intermediate support section and the remaining intermediate support sections, until each movable support section 3 is successively gathered to the position of the fixed support section, thereby avoiding jamming, mutual impact or uneven force caused by multiple support sections 3 retracting at the same time under the action of the traction belt 12.

[0042] When the multi-stage telescopic support mechanism needs to be re-deployed, the winding mechanism 14 gradually releases the traction belt 12, and the unfolding spring 7 between each support section 3 pushes the corresponding support section 3 to move away from the fixed support section. During the process of the support section 3 gradually extending, the guide slides 5 of each stage always move along the corresponding sliding groove 4 to ensure the stability of the extension direction. After each support section 3 moves to the predetermined extension position, the corresponding locking pin 23 enters the corresponding locking groove 15 under the action of the locking reset spring 24, thereby keeping the support sections 3 of each stage that have reached the extension position relatively stable. Finally, the end positioning block 13 on the end support section enters the end positioning groove 2 on the gripping frame 1, thereby completing the deployment and end positioning of the entire multi-stage telescopic support mechanism.

[0043] During actual gripping, the transfer robotic arm first moves the gripping frame 1 above the material to be transferred on the conveyor roller. At this time, the winding mechanism 14 keeps the multi-stage telescopic support mechanisms in a retracted state. Then, the transfer robotic arm drives the gripping frame 1 to descend, so that the multi-stage telescopic support mechanisms at the bottom of the gripping frame 1 enter the area between adjacent conveyor rollers respectively. After the gripping frame 1 descends to the predetermined position, the winding mechanism 14 releases the traction belt 12. Each unfolding spring 7 drives each support section 3 to extend from one side of the gripping frame 1 to the other side and enter the bottom of the material to be transferred. When the end positioning block 13 on the end support section enters the end positioning groove 2, the multiple extended support mechanisms together form the support surface located at the bottom of the material to be transferred.

[0044] After the material is supported, the transfer robotic arm drives the gripper 1 to rise as a whole, so that multiple sets of support mechanisms simultaneously apply upward support from the bottom of the material to be transferred and make the material to be transferred detach from the conveyor roller. Then the transfer robotic arm moves the material to be transferred to the pallet carried by the forks of the lifting transfer component and gradually lowers it. After the material to be transferred is stably supported by the pallet, the winding mechanism 14 tightens the traction belt 12 again. Each set of multi-stage telescopic support mechanisms exits the bottom of the material to be transferred in a step-by-step unlocking and retraction manner from the outside to the inside. The transfer robotic arm then drives the gripper 1 to leave the pallet area, thus completing an automatic transfer process from the conveyor roller to the pallet.

[0045] 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 three-dimensional warehouse aisle stacking and transfer device for PVC raw materials, characterized in that, The system includes a transfer robotic arm, a gripping assembly mounted at the end of the transfer robotic arm, and a lifting and transfer assembly. The lifting and transfer assembly is equipped with forks for carrying pallets. The gripping assembly includes a gripping frame, with multiple sets of parallel multi-stage telescopic support mechanisms spaced apart at the lower interior of the gripping frame. Each set of multi-stage telescopic support mechanisms includes multiple support sections that slide sequentially in the same direction. One end of each support section is fixedly connected to the gripping frame. Adjacent support sections slide together via sliding grooves and guide rails, and a deployment spring is provided between adjacent support sections to push the corresponding support section outward. The outermost support section has an end positioning block. The gripping frame has an end positioning groove on the side away from the fixed end that mates with the end positioning block. The gripping frame also has a traction mechanism for driving the multi-stage telescopic support mechanism to retract. The traction mechanism includes a traction belt and a winding mechanism. The traction belt is arranged along the multi-stage telescopic support mechanism and forms a traction engagement with the outermost support section. The winding mechanism is connected to the traction belt.

2. The automated three-dimensional warehouse aisle stacking and transfer device for PVC raw materials according to claim 1, characterized in that, Each of the multi-stage telescopic support mechanisms comprises multiple support sections including a fixed support section, at least one intermediate support section, and an end support section. The fixed support section is fixedly connected to the gripping frame, the end support section is located at the end away from the fixed support section, and the intermediate support section is slidably disposed between the fixed support section and the end support section.

3. The automated three-dimensional warehouse aisle stacking and transfer device for PVC raw materials according to claim 2, characterized in that, Each of the two adjacent support sections has a spring mounting groove on its opposite side. The unfolding spring is installed between the two oppositely arranged spring mounting grooves so that each of the intermediate support sections and the end support sections has a tendency to move away from the fixed support section.

4. The automated three-dimensional warehouse aisle stacking and transfer device for PVC raw materials according to claim 2, characterized in that, Each of the support sections is provided with a belt receiving groove for accommodating the traction belt. The end support section is provided with a belt passing groove for the traction belt to pass through. A belt guide shaft is rotatably installed in the belt passing groove. A belt guide frame is provided on the edge of the fixed support section. One end of the traction belt is connected to the gripping frame, and the other end is guided by the belt receiving groove, the belt guide shaft and the belt guide frame and then connected to the winding mechanism.

5. The automated three-dimensional warehouse aisle stacking and transfer device for PVC raw materials according to claim 2, characterized in that, Each of the intermediate support sections is provided with a sequential limiting mechanism, while the end support section is not provided with the sequential limiting mechanism. The sequential limiting mechanism is used to restrict the corresponding intermediate support section from retracting toward the fixed support section before its outer support section retracts to a predetermined position.

6. The automated three-dimensional warehouse aisle stacking and transfer device for PVC raw materials according to claim 5, characterized in that, The sequence limiting mechanism includes a trigger slide cavity and a locking slide cavity disposed inside the support section. An unlocking trigger rod is slidably disposed inside the trigger slide cavity. One end of the unlocking trigger rod extends out of the support section and faces the adjacent support section to its outside. The end of the unlocking trigger rod located inside the trigger slide cavity is connected to a squeezing wedge.

7. The automated three-dimensional warehouse aisle stacking and transfer device for PVC raw materials according to claim 6, characterized in that, The unlocking trigger rod is provided with a first limiting block, and a trigger reset spring is provided between the first limiting block and the inner wall of the trigger slide cavity. The trigger reset spring is used to push the unlocking trigger rod to extend toward the adjacent support section.

8. The automated three-dimensional warehouse aisle stacking and transfer device for PVC raw materials according to claim 6, characterized in that, A locking pin is slidably disposed within the locking cavity, and a locking groove that mates with the locking pin is provided on the adjacent support section.

9. The automated three-dimensional warehouse aisle stacking and transfer device for PVC raw materials according to claim 8, characterized in that, The locking pin is connected to a pressure-bearing inclined block at one end inside the locking slide cavity. A locking return spring is provided between the pressure-bearing inclined block and the inner wall of the locking slide cavity. The pressing inclined block and the pressure-bearing inclined block are engaged by their corresponding inclined surfaces.

10. The automated three-dimensional warehouse aisle stacking and transfer device for PVC raw materials according to claim 9, characterized in that, When the adjacent outer support section retracts to the predetermined position, it presses against the unlocking trigger rod, causing the unlocking trigger rod to move the squeezing wedge. The squeezing wedge, through its engagement with the inclined surface of the pressed wedge, causes the locking pin to exit the locking groove, thereby releasing the retraction restriction of the corresponding intermediate support section. This allows multiple support sections to unlock and retract sequentially from the outside in.

11. The automated three-dimensional warehouse aisle stacking and transfer device for PVC raw materials according to claim 1, characterized in that, The bottom of the gripping frame is provided with a clearance area corresponding to the position of the conveying roller. Multiple sets of multi-stage telescopic support mechanisms correspond to the gaps between adjacent conveying rollers, so that when the gripping frame moves to the material to be transferred on the conveying roller, each multi-stage telescopic support mechanism can extend from between adjacent conveying rollers into the bottom of the material to be transferred, and together form a support structure for supporting the material to be transferred after the end positioning block enters the corresponding end positioning groove.

Images