Stock bin type disc stacking machine

Abstract

The utility model belongs to the field of disc stacking machines, and provides a stock bin type disc stacking machine which comprises a machine frame, a conveying belt, a feeding device and a discharging device. The grabbing mechanism is arranged on the rack and located above the conveying belt, the movable end of the grabbing mechanism is connected with a clamping jaw and a magnetic attraction block which are arranged in a height difference mode, and the grabbing mechanism can drive the clamping jaw and the magnetic attraction block to turn over and change positions. Compared with the prior art, the device has the advantages that by using the clamping jaw and the magnetic attraction block which are arranged in a height difference mode, workpieces of various shapes and sizes can be rapidly and accurately processed, the operation flexibility of the device is greatly improved, and the application range of the device is greatly widened; and meanwhile, by means of coordinated operation among the feeding area, the stacking area and the conveying mechanism, the full-automatic process from workpiece machining to finished product stacking is achieved, the requirement for manual intervention is reduced, the labor cost is reduced, the overall efficiency of a production line is remarkably improved, and meanwhile the workpiece quality is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of palletizers, specifically relating to a hopper-type palletizer. Background Technology

[0002] With the increasing level of industrial automation, traditional manual operations can no longer meet the needs of modern manufacturing.

[0003] While current palletizing equipment has achieved a certain degree of automation, the entire process, from picking up workpieces after processing by external equipment to finally stacking them on pallets, still faces many challenges. For example, when processing parts of different specifications, manual unloading is often required before placing them into pallets on the production line. This method requires a lot of manual intervention in actual operation and cannot adapt to different workpiece specifications. Moreover, the overall work efficiency is relatively poor when stacking several pallets, and accidents are prone to occur during handling, ultimately affecting production efficiency and workpiece quality. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the existing technology, the technical problem to be solved by this utility model is to propose a hopper-type palletizer that can adapt to the gripping of workpieces of different shapes, automatically stack and store pallets, improve production efficiency and ensure workpiece quality.

[0005] The technical solution adopted by this utility model to solve its technical problem is to propose a hopper-type palletizer, which is used to place several workpieces processed by external equipment into a pallet in sequence, including: a frame on which a conveyor belt is configured.

[0006] The machine includes a gripping mechanism and a lifting mechanism. The gripping mechanism is mounted on the frame and located above the conveyor belt. The movable end of the gripping mechanism is connected to a gripper and a magnetic block with a height difference. The gripping mechanism can drive the gripper and the magnetic block to flip and change position so that they can grip or attract workpieces of different shapes when they extend out of the frame. The lifting mechanism is located at the end of the conveyor belt and can be lifted vertically to support the workpiece on the gripper or the magnetic block.

[0007] The feeding area, the stacking area, and the conveying mechanism are provided. The feeding area and the stacking area are located at both ends of the conveying mechanism. The moving direction of the conveying mechanism is perpendicular to the moving direction of the conveyor belt. The conveying mechanism is used to push the empty tray in the feeding area to the stacking area after it is filled with the workpiece.

[0008] The feeding mechanism and the receiving mechanism are provided. The feeding mechanism is used to push the workpiece on the lifting mechanism into the conveyor belt. The receiving mechanism can grab the workpiece on the conveyor belt and place it into the material tray when the conveyor mechanism moves the material tray to a preset position, so that the conveyor mechanism can push the material tray full of workpieces into the pallet area for storage.

[0009] In the aforementioned hopper-type palletizing machine, both the feeding area and the palletizing area include:

[0010] The encoder racks are symmetrically distributed on both sides of the conveying mechanism;

[0011] The drive shaft and the driven shaft are respectively located at the bottom and top of the code disk frame. Both the drive shaft and the driven shaft are equipped with sprockets, and the two sprockets in the vertical direction are connected by chain drive.

[0012] Several support blocks are connected at equal intervals in an L-shape on the chain. The support blocks at the same horizontal height are used to restrict the material tray to a horizontal position.

[0013] A drive unit is disposed within the frame, and the output shaft of the drive unit is used to drive the drive shaft to rotate synchronously with the driven shaft.

[0014] In the aforementioned hopper-type palletizing machine, the conveying mechanism includes:

[0015] A conveying module and a drive source are mounted on the frame. When the material tray is placed on the conveying module, the drive source can drive the conveying module to move the material tray to the desired position.

[0016] Several sensors are disposed at both ends of the conveying module, and the sensors are used to detect the position of the material tray relative to the support block;

[0017] A sensor is mounted on the frame and located in the middle of the conveying module. The sensor is used to detect the position of the tray waiting for the receiving mechanism to place the workpieces in sequence.

[0018] In the aforementioned hopper-type palletizing machine, the movable end of the gripping mechanism is connected to a bracket, the gripper is located on the top wall of the bracket, and a clamping groove for moving and closely adhering to the workpiece is formed in the gripper; the magnetic blocks are symmetrically arranged on the bottom wall of the bracket, and there is a height difference between them and the conveyor belt.

[0019] In the aforementioned hopper-type palletizer, the gripping mechanism further includes:

[0020] A movable frame is movably mounted on the frame.

[0021] A first material transfer module is mounted on the movable frame, and a mounting bracket is connected to the movable end of the first material transfer module.

[0022] The drive motor and the rotating shaft are provided. The drive motor is mounted on the mounting bracket, which extends outward to form a mounting base. The rotating shaft is movably mounted within the mounting base, and a pneumatic finger is connected to one end of the rotating shaft. A bracket is connected to the pneumatic finger, and the other end of the rotating shaft is connected to the output end of the drive motor via a coupling.

[0023] In the aforementioned hopper-type palletizing machine, the lifting mechanism includes a lifting cylinder and a receiving plate. The lifting cylinder is disposed at the end of the conveyor belt, and the receiving plate is connected to the output end of the lifting cylinder. A clearance slope is formed at the end of the receiving plate, and the clearance slope is movably close to the bend of the conveyor belt so that the top wall of the receiving plate is flush with the top wall of the conveyor belt.

[0024] In the aforementioned hopper-type palletizing machine, the pushing mechanism includes a pushing cylinder and a pushing plate. The pushing cylinder is installed on the side wall of the conveyor belt, and the pushing plate is connected to the output end of the pushing cylinder, used to push the workpiece on the receiving plate into the conveyor belt.

[0025] In the aforementioned hopper-type palletizing machine, a limiting plate located at the end of the conveyor belt is also provided on the frame. The limiting plate and the conveyor belt together form a U-shaped anti-detachment cavity, which is used to restrict the workpiece to the end of the conveyor belt.

[0026] In the aforementioned hopper-type palletizing machine, the receiving mechanism includes:

[0027] The second material transfer module is mounted on the frame;

[0028] The lifting platform and the gripper are connected to the movable end of the second material transfer module. The gripper is connected to the lifting platform and is used to grip the workpiece in the U-shaped anti-detachment cavity and transfer it to the material tray after being detected by the sensor.

[0029] In the aforementioned hopper-type palletizing machine, the side wall of the movable frame is provided with a guide rail along its length, and the frame is provided with a plurality of guide blocks along the horizontal direction, the guide rail and the guide blocks being movably engaged.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] (1) The present invention provides a hopper-type palletizing machine that uses grippers with height difference settings and magnetic blocks to quickly and accurately process workpieces of various shapes and sizes, greatly enhancing the operational flexibility and applicability of the equipment; at the same time, by utilizing the coordinated operation between the feeding area, palletizing area and conveying mechanism, the fully automated process from workpiece processing to finished product stacking is realized, reducing the need for manual intervention, lowering labor costs, significantly improving the overall efficiency of the production line, and ensuring the quality of workpieces.

[0032] (2) The dual protection mechanism of sensors and sensors ensures the stability of the tray during movement and prevents the risk of accidental drop or damage. At the same time, precise position control also avoids collisions between devices, further improving the safety and reliability of the equipment.

[0033] (3) Through the movable snap-fit ​​between the guide block and the guide rail, the entire mobile frame and all its components can be retracted into the frame (i.e. away from external equipment), thus providing enough space for workers to change molds for external equipment. The overall structure is simple and the operation is convenient and quick. Attached Figure Description

[0034] Figure 1 This is a perspective view of this application;

[0035] Figure 2 This is a schematic diagram of the installation structure of the feeding area, the palletizing area, and the conveying mechanism on the frame;

[0036] Figure 3 This is a schematic diagram of the installation structure of the gripping mechanism, lifting mechanism, and pushing mechanism;

[0037] Figure 4 This is a schematic diagram of the mounting structure of the gripper and magnetic block on the drive motor;

[0038] Figure 5 This is a schematic diagram of the installation structure of the guide block and guide rail on the moving frame and the machine frame;

[0039] Figure 6 This is a schematic diagram of the installation structure of the receiving mechanism on the frame.

[0040] In the diagram, 1 is the frame; 10 is the conveyor belt; 11 is the limiting plate; 110 is the U-shaped anti-detachment cavity; and 12 is the guide block.

[0041] 2. Gripping mechanism; 20. Gripper; 200. Gripping groove; 201. Rubber pad; 21. Magnetic block; 22. Bracket; 23. Moving frame; 230. Guide rail; 231. Dust removal nozzle; 232. Extension frame; 24. First material transfer module; 240. Mounting frame; 241. Mounting base; 25. Drive motor; 26. Rotating shaft; 27. Pneumatic finger; 28. Coupling;

[0042] 3. Lifting mechanism; 30. Lifting cylinder; 31. Support plate; 310. Yielding slope;

[0043] 40. Feeding area; 41. Stacking area; 420. Material tray; 421. Stacking frame; 422. Drive shaft; 423. Driven shaft; 424. Sprocket; 425. Chain; 426. Support block; 427. Drive component;

[0044] 5. Conveying mechanism; 50. Conveying module; 51. Drive source; 52. Sensor; 53. Sensor;

[0045] 6. Pushing mechanism; 60. Pushing cylinder; 61. Pushing plate;

[0046] 7. Receiving mechanism; 70. Second material transfer module; 71. Lifting platform; 72. Gripping component; 720. Clamping cylinder; 721. Clamping arm. Detailed Implementation

[0047] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0048] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0049] like Figures 1 to 6As shown, this utility model discloses a hopper-type palletizing machine for sequentially placing several workpieces processed by external equipment into a pallet 420. Its features include: a frame 1 with a conveyor belt 10 mounted on it; a gripping mechanism 2 and a lifting mechanism 3. The gripping mechanism 2 is mounted on the frame 1 and located above the conveyor belt 10. The movable end of the gripping mechanism 2 is connected to a gripper 20 and a magnetic block 21 arranged at a height difference. The gripping mechanism 2 can drive the gripper 20 and the magnetic block 21 to rotate and reposition, so that when it extends out of the frame 1, it can grip or attract workpieces of different shapes. The lifting mechanism 3 is located at the end of the conveyor belt 10 and can be lifted vertically to support the gripper 20 or the magnetic block 21. The conveyor system includes a workpiece feeding area 40, a palletizing area 41, and a conveying mechanism 5. The feeding area 40 and the palletizing area 41 are located at both ends of the conveying mechanism 5. The moving direction of the conveying mechanism 5 is perpendicular to the moving direction of the conveyor belt 10. The conveying mechanism 5 is used to push the empty pallet 420 in the feeding area 40 to the palletizing area 41 after it is filled with workpieces. The conveying mechanism 6 is used to push the workpieces on the lifting mechanism 3 to the conveyor belt 10. The receiving mechanism 7 can grab the workpieces on the conveyor belt 10 and place them into the pallet 420 when the pallet 420 is moved to a preset position by the conveying mechanism 5, so that the conveying mechanism 5 can push the pallet 420 filled with workpieces to the palletizing area 41 for storage.

[0050] This solution primarily aims to achieve the automatic gripping and stacking of workpieces after they have been processed by external equipment. Specifically, for example... Figures 1 to 6As shown, after the external equipment (not shown) finishes processing the required workpiece, the control system can control the gripping mechanism 2 to select either the gripper 20 or the magnetic block 21 for gripping according to the processing and manufacturing of different shaped products, such as cylindrical, convex / concave, and other shapes. Relying on the gripping mechanism 2's flipping and repositioning function (for example, the magnetic block 21 can be used to attract metal workpieces, while the gripper 20 is used to grip non-metallic workpieces), it can adjust the position of the gripper 20 or the magnetic block 21 as needed to adapt to workpieces of different positions and shapes, improving work efficiency while also enhancing the equipment's operational flexibility and applicability. As the gripping mechanism 2 extends outside the frame 1, it can flexibly grip or attract different workpiece positions. After the gripping action is completed and the workpiece is moved away from the external equipment, the lifting mechanism 3 can lift it vertically to the appropriate position. When the height is adjusted to ensure that the workpiece is placed stably after being gripped, the pushing mechanism 6 pushes the workpiece on the lifting mechanism 3 to the conveyor belt 10 for conveying along the direction of the conveying mechanism 5. During the above operation, several empty trays 420 fall vertically to the output end of the conveying mechanism 5 and are delivered to the designated position by the conveying mechanism 5, waiting for the receiving mechanism 7 to place the workpiece into the tray 420. As the conveyor belt 10 moves the processed workpiece to the bottom of the receiving mechanism 7, the receiving mechanism 7 can grip the workpiece and place it in the designated position in the tray 420. After the tray 420 is full of workpieces, the conveying mechanism 5 pushes the tray 420 into the stacking area 41 for automatic stacking and storage, effectively ensuring that the tray 420 moves stably and accurately to the final position. The entire process is highly automated, from workpiece gripping, handling, and placement to pallet 420 pushing and stacking storage, reducing the need for manual intervention while ensuring the safety of workpieces during handling, preventing the risk of accidental drops or damage, and effectively improving production efficiency and workpiece quality.

[0051] Both the feeding area 40 and the palletizing area 41 include: a palletizing frame 421, symmetrically distributed on both sides of the conveying mechanism 5; a drive shaft 422 and a driven shaft 423, respectively located at the bottom and top of the palletizing frame 421, with sprockets 424 mounted on both the drive shaft 422 and the driven shaft 423, and the two sprockets 424 in the vertical direction being connected by a chain 425; several support blocks 426, equidistantly connected in an L-shape on the chain 425, with the support blocks 426 at the same horizontal height used to restrict the pallet 420 to a horizontal position; and a drive unit 427, located inside the frame 1, with the output shaft of the drive unit 427 used to drive the drive shaft 422 to drive the driven shaft 423 to rotate synchronously.

[0052] like Figure 1 and Figure 2As shown, in the feeding area 40, several empty trays 420 are placed at equal intervals on the support block 426 in a horizontal posture. Since the support block 426 in this embodiment is designed in an L-shape, it can ensure that the trays 420 can maintain a horizontal posture while also confining them within the tray rack 421, effectively preventing the trays 420 from tilting or even falling off. Since the drive shaft 422 and the driven shaft 423 are located at the bottom and top of the encoder frame 421 respectively, and sprockets 424 are installed on both the drive shaft 422 and the driven shaft 423, and the two sprockets 424 in the vertical direction are connected by a chain 425, when the drive component 427 starts and drives the drive shaft 422 to rotate, the power can be transmitted to the driven shaft 423 through the chain 425, so that the two shafts rotate synchronously. At this time, the support block 426 moves up and down with the movement of the chain 425. When the empty tray 420 falls to the lowest end of the encoder frame 421 (at this time the empty tray 420 falls above the conveying mechanism 5), the conveying mechanism 5 can push the tray 420 to the receiving mechanism 7 below the end away from the conveyor belt 10, waiting for the tray 420 to be filled. Similarly, after the receiving mechanism 7 fills the tray 420 with workpieces, the conveying mechanism 5 can push the tray 420 onto the support block 426 in the stacking area 41. Again, relying on the mutual transmission between the chain 425 and the two shafts, the tray 420 filled with workpieces is automatically stacked and stored in the stacking area 41. Thus, the entire process (picking up the tray 420, placing the workpieces, and stacking the tray 420) is automated, reducing the risks and instability of manual handling and effectively improving production efficiency and the accuracy of workpiece stacking.

[0053] The conveying mechanism 5 includes: a conveying module 50 and a drive source 51, which are mounted on the frame 1. When the tray 420 is placed on the conveying module 50, the drive source 51 can drive the conveying module 50 to move the tray 420 to the required position; several sensors 52 are mounted at both ends of the conveying module 50, and the sensors 52 are used to detect the position of the tray 420 relative to the support block 426; and a sensor 53 is mounted on the frame 1 and located in the middle of the conveying module 50, and the sensor 53 is used to detect the position of the tray 420 waiting for the receiving mechanism 7 to place the workpieces in sequence.

[0054] Similarly, such as Figure 1 and Figure 2As shown, as the empty tray 420 in the feeding area 40 falls to the lowest end of the stacking frame 421, the position of the tray 420 relative to the support block 426 can be effectively detected by relying on several sensors 52 set at both ends of the conveying module 50. Specifically, when the empty tray 420 above the support block 426 approaches and is placed on the conveying module 50, the sensor 52 sends a signal, which in turn sends the position signal of the tray 420 to the control system (not shown in the figure), thereby controlling the drive source 51 to drive the conveying module 50 to start operation, so as to move the empty tray 420 to the bottom of the receiving mechanism 7. In addition, this embodiment also has a sensor 53 in the middle of the frame 1, which is specifically used to detect the position of the tray 420 waiting for the receiving mechanism 7 to place the workpieces in sequence. That is, when the tray 420 reaches the predetermined position (i.e., when it is close to and located on both sides of the sensor 53), the sensor 53 will send a signal to indicate that the receiving mechanism 7 can start working, so as to ensure that each workpiece can be accurately placed in the tray 420, avoiding the misalignment or overlap of workpieces. It can be seen that the stacking machine, through the dual protection mechanism of sensor 52 and sensor 53, ensures the precise positioning and stability of the material tray 420 during the movement process. Whether it is grabbing, transporting or placing workpieces, it can ensure the accuracy of operation and reduce operational errors caused by errors.

[0055] Preferably, in this embodiment, the drive source 51 and drive component 427 can be replaced by other drive devices such as stepper motors and servo motors. Furthermore, the transmission between drive component 427 and drive shaft 422 can also be achieved using chain drive 425. Moreover, in this embodiment, the conveying module 50 can also use drive shaft 422, driven shaft 423, and chain drive 425 to move the material tray 420; the structure and working principle are the same, and will not be described in detail here. Of course, this chain drive 425 transmission (high load-bearing capacity, high transmission efficiency, suitable for harsh working environments) is only a preferred solution in this embodiment; other transmission methods such as belt drive can also be used instead.

[0056] The movable end of the gripping mechanism 2 is connected to the bracket 22. The gripper 20 is located on the top wall of the bracket 22, and a clamping groove 200 for moving and clamping the workpiece is formed in the gripper 20. The magnetic block 21 is symmetrically arranged on the bottom wall of the bracket 22, and there is a height difference between it and the conveyor belt 10.

[0057] like Figure 1 , Figure 3 and Figure 4As shown, when handling non-magnetic or unsuitable workpieces for magnetic adsorption, the gripping mechanism 2 flips to a position where the gripper 20 faces downwards. At this time, the gripper 20 firmly grasps the product through its internal clamping groove 200, ensuring it will not slip during transport. The close fit design reduces the risk of product shaking or falling during transport, ensuring operational safety and reliability; it also avoids surface damage caused by excessive pressure, maintaining the product's appearance quality. For metal or convex / concave products, this embodiment uses the strong magnetic force of the magnetic block 21 to firmly attract the product. The height difference ensures that the magnetic block 21 can be smoothly lifted after attracting the product without touching the conveyor belt 10 or other components. Therefore, the combined use of the magnetic block 21 and the gripper 20 allows the same palletizer to handle multiple types of products, enhancing its versatility and flexibility. It also allows for flexible switching between gripper 20 mode and magnetic adsorption mode, effectively ensuring the overall efficiency of the production line. Preferably, in this embodiment, a rubber pad 201 can be detachably connected in the clamping groove 200, so as to further ensure that the quality of the gripped product is not damaged.

[0058] The gripping mechanism 2 also includes: a movable frame 23, movably mounted on the frame 1; a first material transfer module 24, mounted on the movable frame 23, with a mounting frame 240 connected to the movable end of the first material transfer module 24; a drive motor 25 and a rotating shaft 26, the drive motor 25 being mounted on the mounting frame 240, the mounting frame 240 extending outward to a mounting base 241, the rotating shaft 26 being movably mounted within the mounting base 241, and a pneumatic finger 27 being connected to one end of the rotating shaft 26, a bracket 22 being connected to the pneumatic finger 27, and the other end of the rotating shaft 26 being connected to the output end of the drive motor 25 via a coupling 28.

[0059] like Figure 1 , Figure 3 and Figure 4As shown, after the external equipment finishes processing the required workpiece, the drive motor 25 adjusts the relative positions of the magnetic block 21 and the gripper 20 according to the instructions of the control system (not shown in the figure). Specifically, after the drive motor 25 starts, it drives the rotating shaft 26 to rotate through the coupling 28, causing the pneumatic finger 27 and its support 22 to flip and change position. Since the gripper 20 and the magnetic block 21 are distributed on the upper and lower sides of the support 22, the gripping method can be matched to the shape of the product to be gripped by this rotation. This design allows the gripping mechanism 2 to complete the conversion between the gripper 20 and the magnetic block 21 in a short time, improving the response speed and adaptability of the equipment. During the gripping process, the first material transfer module 24 drives the mounting frame 240 and all its components to move in the vertical and horizontal directions, which can extend the magnetic block 21 and the gripper 20 out of the conveyor belt 10 and bring them closer to the external equipment. This realizes the free movement of the gripping mechanism 2 in multiple dimensions, expands its operating range, is suitable for production lines with different layouts, and also ensures stable gripping of the workpiece after processing by the equipment.

[0060] Preferably, in this embodiment, a dust removal nozzle 231 can also be installed on the movable frame 23. By aligning the dust removal nozzle 231 with the gripper 20 and the magnetic block 21, the component and the workpiece it grips can be dusted and chipped, effectively preventing the workpiece from being affected by impurities or waste and its stability when being gripped.

[0061] The lifting mechanism 3 includes a lifting cylinder 30 and a receiving plate 31. The lifting cylinder 30 is disposed at the end of the conveyor belt 10, and the receiving plate 31 is connected to the output end of the lifting cylinder 30. A clearance slope 310 is formed at the end of the receiving plate 31. The clearance slope 310 is movably attached to the bend of the conveyor belt 10 so that the top wall of the receiving plate 31 is flush with the top wall of the conveyor belt 10.

[0062] like Figure 3 As shown, when the magnetic block 21 or the gripper 20 picks up the workpiece from the external device and moves it above the receiving plate 31, the lifting cylinder 30 can then drive the receiving plate 31 along... Figure 3 Moving vertically upwards, when the receiving plate 31 reaches the predetermined position (i.e., the receiving plate 31 lifts the workpiece), the magnetic block 21 or the gripper 20 releases the workpiece and moves away from the receiving plate 31. Then, the lifting cylinder 30 can drive the receiving plate 31 to descend. During this process, the clearance slope 310 gradually approaches the bend of the conveyor belt 10, ensuring that the movement trajectory of the receiving plate 31 is smooth and unobstructed. As the top wall of the lifting plate is completely aligned with the top wall of the conveyor belt 10, a continuous plane is formed. It is precisely because of the seamless connection between the receiving plate 31 and the conveyor belt 10 that the workpiece can be smoothly transferred from the receiving plate 31 to the conveyor belt 10, effectively avoiding jamming or jumping phenomena that would affect product quality.

[0063] The pushing mechanism 6 includes a pushing cylinder 60 and a pushing plate 61. The pushing cylinder 60 is installed on the side wall of the conveyor belt 10, and the pushing plate 61 is connected to the output end of the pushing cylinder 60, which is used to push the workpiece on the receiving plate 31 into the conveyor belt 10.

[0064] More preferably, such as Figure 3 As shown, in this embodiment, the moving direction of the pusher plate 61 is parallel to the moving direction of the conveyor belt 10. As the receiving plate 31 and the conveyor belt 10 are placed side by side, the pusher cylinder 60 can drive the pusher plate 61 to move from the outside of the conveyor belt 10 to the inside of the conveyor belt 10. During this process, the movement speed and force of the pusher plate 61 are precisely controlled to ensure that the workpiece is transferred smoothly and safely onto the conveyor belt 10. Once the workpiece has completely left the receiving plate 31 and entered the conveyor belt 10, the pusher cylinder 60 immediately stops, and the pusher plate 61 quickly returns to its initial position to prepare for the next operation. The whole process is fast and efficient, ensuring the smooth connection of the workpiece loading action and ensuring that the speed of the production line is not affected.

[0065] The frame 1 is also provided with a limiting plate 11 located at the end of the conveyor belt 10. The limiting plate 11 and the conveyor belt 10 together form a U-shaped anti-detachment cavity 110, which is used to restrict the workpiece to the end of the conveyor belt 10.

[0066] like Figure 3 and Figure 5 As shown, in this embodiment, an extension frame 232 is connected to the movable frame 23, and the conveyor belt 10 is movably mounted on the extension frame 232. Additionally, a limiting plate 11 is located at the end of the conveyor belt 10 near the receiving mechanism 7. As the pusher plate 61 pushes the workpiece into the conveyor belt 10 and moves it to the area below the receiving mechanism 7, the receiving mechanism 7 can then grip the workpiece. During this process, the U-shaped anti-detachment cavity 110 formed by the limiting plate 11 and the conveyor belt 10 greatly reduces the risk of the workpiece sliding or falling off due to vibration or other external forces during transport, ensuring the safe operation of the production line and improving the reliability of the receiving mechanism 7 in accurately gripping the workpiece. Preferably, in this embodiment, the limiting plate 11 can also be equipped with the aforementioned sensor 52 structure, which is used to detect the position of the workpiece to be stored in real time.

[0067] The receiving mechanism 7 includes: a second material transfer module 70, which is mounted on the frame 1; a lifting platform 71 and a gripping member 72. The lifting platform 71 is connected to the movable end of the second material transfer module 70, and the gripping member 72 is connected to the lifting platform 71. It is used to grip the workpiece in the U-shaped anti-detachment cavity 110 and transfer it to the material tray 420 after being detected by the sensor 53.

[0068] like Figure 6As shown, once the workpiece reaches the U-shaped anti-detachment cavity 110 and the control system receives the corresponding signal, the second transfer module 70 can move freely in the horizontal and vertical directions. Then, the lifting platform 71 aligns the gripper 72 with the workpiece to be gripped. As the gripper 72 extends and grips the workpiece, the second transfer module 70's secondary action drives the gripper 72 to place the workpiece into the material tray 420 above the conveying module 50 along a set path. During this process, the lifting platform 71 remains stable to ensure that the workpiece will not fall off due to shaking. As the lifting platform 71 descends and the gripper 72 approaches the target material tray 420, the gripper 72 releases, gently placing the workpiece into the material tray 420, completing one complete transfer operation. The entire process is repeated to ensure the continuous operation of the production line.

[0069] Preferably, in this embodiment, both the first transfer module 24 and the second transfer module 70 are composed of a horizontal linear guide rail and a vertical linear guide rail. The vertical linear guide rail is connected to the output end of the horizontal linear guide rail, and the lifting platform 71 and the mounting bracket 240 can be connected to the output end of the vertical linear guide rail. Through the cooperation between the two, the required function is achieved. More preferably, this embodiment also includes a slider and a slide rail structure (see reference...). Figure 3 The cooperation between the slider and the slide rail further enhances the stability of the lifting platform 71 and the mounting frame 240 during vertical movement, effectively preventing the lifting platform 71 or the mounting frame 240 from tilting or swaying, which would affect the accuracy and stability of the parts gripping the workpiece.

[0070] More preferably, the gripper 72 in this embodiment can be used in two alternative structures, such as... Figure 6 As shown, the gripper 72 includes a gripping cylinder 720 mounted on the lifting platform 71 and symmetrically arranged gripping arms 721. By having the gripping cylinder 720 drive the two gripping arms 721 to move closer or further apart, the gripping and releasing of the workpiece can be completed. Similarly, the gripper 72 can also use a lifting cylinder in conjunction with a strong magnetic block (not shown in the figure) to achieve stable gripping of metal workpieces. The two methods can be adapted and adjusted according to the actual processing and usage requirements, effectively improving the flexibility of the palletizer during operation.

[0071] More preferably, such as Figure 5As shown, in this embodiment, a guide rail 230 is also provided on the side wall of the movable frame 23 along its length, and several guide blocks 12 are provided on the frame 1 in the horizontal direction. The guide rail 230 is movably engaged with the guide blocks 12. It should be noted that in this embodiment, the gripping mechanism 2, lifting mechanism 3, limiting plate 11, and pushing mechanism 6 are all located on the frame 1 at a position higher than the installation position of the aforementioned conveying module 50. Therefore, relying on the cooperation of the guide blocks 12 and the guide rail 230, the movable frame 23 and all the mechanisms on it can move relative to the frame 1 (i.e., along the length of the frame). Figure 1 (Moving back and forth in the left and right directions), as the conveyor belt 10 and various mechanisms retract along the frame 1, the distance between the stacking machine and external equipment is increased, so as to provide enough space for workers to change molds on external equipment, making the operation more convenient and faster.

[0072] It should be noted that in this invention, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly specified. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0073] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0074] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A hopper-type palletizing machine, used to sequentially place several workpieces processed by external equipment into a pallet, characterized in that, include: A frame on which a conveyor belt is mounted; The machine includes a gripping mechanism and a lifting mechanism. The gripping mechanism is mounted on the frame and located above the conveyor belt. The movable end of the gripping mechanism is connected to a gripper and a magnetic block with a height difference. The gripping mechanism can drive the gripper and the magnetic block to flip and change position so that they can grip or attract workpieces of different shapes when they extend out of the frame. The lifting mechanism is located at the end of the conveyor belt and can be lifted vertically to support the workpiece on the gripper or the magnetic block. The feeding area, the stacking area, and the conveying mechanism are provided. The feeding area and the stacking area are located at both ends of the conveying mechanism. The moving direction of the conveying mechanism is perpendicular to the moving direction of the conveyor belt. The conveying mechanism is used to push the empty tray in the feeding area to the stacking area after it is filled with the workpiece. The feeding mechanism and the receiving mechanism are provided. The feeding mechanism is used to push the workpiece on the lifting mechanism into the conveyor belt. The receiving mechanism can grab the workpiece on the conveyor belt and place it into the material tray when the conveyor mechanism moves the material tray to a preset position, so that the conveyor mechanism can push the material tray full of workpieces into the pallet area for storage.

2. The hopper-type palletizer according to claim 1, characterized in that, Both the feeding area and the stacking area include: The encoder racks are symmetrically distributed on both sides of the conveying mechanism; The drive shaft and the driven shaft are respectively located at the bottom and top of the code disk frame. Both the drive shaft and the driven shaft are equipped with sprockets, and the two sprockets in the vertical direction are connected by chain drive. Several support blocks are connected at equal intervals in an L-shape on the chain. The support blocks at the same horizontal height are used to restrict the material tray to a horizontal position. A drive unit is disposed within the frame, and the output shaft of the drive unit is used to drive the drive shaft to rotate synchronously with the driven shaft.

3. A hopper-type palletizer according to claim 2, characterized in that, The conveying mechanism includes: A conveying module and a drive source are mounted on the frame. When the material tray is placed on the conveying module, the drive source can drive the conveying module to move the material tray to the desired position. Several sensors are disposed at both ends of the conveying module, and the sensors are used to detect the position of the material tray relative to the support block; A sensor is mounted on the frame and located in the middle of the conveying module. The sensor is used to detect the position of the tray waiting for the receiving mechanism to place the workpieces in sequence.

4. A hopper-type palletizer according to claim 1, characterized in that, The movable end of the gripping mechanism is connected to a bracket, the gripper is located on the top wall of the bracket, and a clamping groove for moving and closely adhering to the workpiece is formed in the gripper; the magnetic blocks are symmetrically arranged on the bottom wall of the bracket, and there is a height difference between them and the conveyor belt.

5. A hopper-type palletizer according to claim 4, characterized in that, The grasping mechanism also includes: A movable frame is movably mounted on the frame. A first material transfer module is mounted on the movable frame, and a mounting bracket is connected to the movable end of the first material transfer module. The drive motor and the rotating shaft are provided. The drive motor is mounted on the mounting bracket, which extends outward to form a mounting base. The rotating shaft is movably mounted within the mounting base, and a pneumatic finger is connected to one end of the rotating shaft. A bracket is connected to the pneumatic finger, and the other end of the rotating shaft is connected to the output end of the drive motor via a coupling.

6. A hopper-type palletizer according to claim 1, characterized in that, The lifting mechanism includes a lifting cylinder and a receiving plate. The lifting cylinder is located at the end of the conveyor belt, and the receiving plate is connected to the output end of the lifting cylinder. A clearance slope is formed at the end of the receiving plate. The clearance slope is movably close to the bend of the conveyor belt so that the top wall of the receiving plate is flush with the top wall of the conveyor belt.

7. A hopper-type palletizer according to claim 6, characterized in that, The pushing mechanism includes a pushing cylinder and a pushing plate. The pushing cylinder is installed on the side wall of the conveyor belt, and the pushing plate is connected to the output end of the pushing cylinder, for pushing the workpiece on the receiving plate into the conveyor belt.

8. A hopper-type palletizer according to claim 3, characterized in that, The frame is also provided with a limiting plate located at the end of the conveyor belt. The limiting plate and the conveyor belt together form a U-shaped anti-detachment cavity, which is used to restrict the workpiece to the end of the conveyor belt.

9. A hopper-type palletizer according to claim 8, characterized in that, The receiving organization includes: The second material transfer module is mounted on the frame. The lifting platform and the gripper are connected to the movable end of the second material transfer module. The gripper is connected to the lifting platform and is used to grip the workpiece in the U-shaped anti-detachment cavity and transfer it to the material tray after being detected by the sensor.

10. A hopper-type palletizer according to claim 5, characterized in that, The side wall of the mobile frame is provided with a guide rail along its length, and the frame is provided with a number of guide blocks along the horizontal direction. The guide rail and the guide block are movably engaged.

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