Automatic tray separating and stacking system for stacker crane
By combining the design of the support frame, conveying components, toothed components, and lifting components, the problem of low automation in the pallet separation function of traditional palletizers is solved, realizing stable pallet conveying, rapid separation and stacking, and improving the system's adaptability and safety.
Patent Information
- Application Number
- CN202520273946.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-20
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-02-20
AI Technical Summary
Traditional palletizers have a low degree of automation in their pallet separation function, making it difficult to quickly and accurately convert entire pallets into individual pallets. They also have difficulty adapting to pallets of different sizes and shapes, which reduces the stability and safety of the equipment.
The system employs a combination design of a support frame, conveying components, toothed components, and lifting components. Stable pallet transport is achieved through sprockets and drive chains, pallet separation and stacking are achieved through the rapid insertion and retraction of the toothed components, and the lifting plate of the lifting components enables smooth lifting and lowering of the pallets. Automated control is achieved through sensors.
It improves the efficiency and accuracy of pallet handling, enhances the automation and adaptability of the system, and ensures the stability and safety of pallets in different sizes and shapes.
Smart Images

Figure CN223659110U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of palletizers, and in particular to an automatic pallet stacking system for palletizers. Background Technology
[0002] A palletizer is a mechanical device that can automatically stack and transport goods. It can stack pallets according to certain rules for subsequent handling and storage. In order to improve the efficiency and flexibility of logistics operations and facilitate the automation of subsequent sorting and transportation, the palletizer also needs to have the function of dividing the entire stack of pallets into individual pallets.
[0003] However, traditional palletizers have relatively limited functions, mainly limited to stacking pallets. To compensate for this deficiency, some companies have tried to add simple mechanisms to separate pallets. However, these methods are generally not highly automated and cannot quickly and accurately convert entire pallet stacks into individual pallets. The output efficiency of individual pallets or entire pallet stacks also decreases. Furthermore, the increased complexity increases the risk of overall equipment failure. In addition, these simple mechanisms are difficult to adapt flexibly to pallets of different sizes and shapes, reducing overall stability and safety. Utility Model Content
[0004] The purpose of this invention is to provide an automatic pallet stacking system for palletizers to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: it includes a support frame, a plurality of conveying components are provided at the bottom of the support frame, a pallet stacking component is provided inside the support frame, a pair of inserting tooth components are symmetrically provided on both sides of the pallet stacking component, and a lifting component is provided at the bottom of the pallet stacking component.
[0006] As a preferred embodiment of this utility model, several tray side plates are provided on both the front and rear sides of the support frame, and a pair of mounting brackets are symmetrically arranged on both sides of the support frame.
[0007] In a preferred embodiment of this utility model, the conveying assembly includes a support frame 1, a pair of bearing seats 1 symmetrically arranged on both sides of the support frame 1, a rotating shaft 1 arranged between the two bearing seats 1, a pair of sprockets 1 symmetrically arranged on both sides of the rotating shaft 1, a pair of bearing seats 2 symmetrically arranged on the side of the support frame 1 away from the rotating shaft 1, a rotating shaft 2 arranged between the two bearing seats 2, a pair of sprockets 2 symmetrically arranged on both sides of the rotating shaft 2, and a transmission chain 1 arranged between the sprockets 1 and sprockets 2 on the same side.
[0008] As a preferred embodiment of this utility model, an SEW reducer is provided on one side of the support frame, a motor is provided on one side of the SEW reducer, a sprocket is provided on the transmission end of the motor, a sprocket is sleeved on the outer side of the rotating shaft, and a transmission chain is provided between the sprocket and the sprocket.
[0009] As a preferred embodiment of this utility model, the tooth assembly includes a cylinder 1 disposed on one side of a mounting bracket 1, a connector 1 disposed on the top of the telescopic rod of the cylinder 1, a mounting seat 1 disposed on one side of the mounting bracket 1 of the cylinder 1, a tooth movably disposed on the mounting seat 1, the side of the tooth moving away from the mounting seat 1 being connected to the connector 1, and a protective shell disposed on one side of the mounting bracket 1.
[0010] In a preferred embodiment of this utility model, the lifting assembly includes a second mounting bracket mounted on a support frame. A lifting cylinder is mounted at the bottom of the second mounting bracket, and the telescopic rod of the lifting cylinder passes through the second mounting bracket. A lifting plate is mounted at the top of the telescopic rod of the lifting cylinder. A pair of mounting seats are symmetrically arranged on both sides of the support frame. A connecting frame is movably mounted on each of the two mounting seats on the same side. A pair of connecting rods is arranged between the two connecting frames. A pair of connecting rods are symmetrically arranged on both sides of each connecting frame. Mounting seats are arranged around the bottom of the lifting plate. Each mounting seat is connected to the end of the connecting rod away from the connecting frame.
[0011] As a preferred embodiment of this invention, the support frame is provided with several sensors.
[0012] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:
[0013] 1. By setting up a conveying assembly, the coordinated use of sprocket one, sprocket two, sprocket three, sprocket four and transmission chain one enables the pallet to move smoothly and continuously on the conveying path, ensuring the stability and reliability of pallet conveying. Furthermore, by sending signals to the control system through multiple sensors, automated control is achieved, thereby improving the processing efficiency of the entire automatic stacking system for palletizers.
[0014] 2. By setting up a toothed assembly, the cylinder drives the toothed assembly to quickly and accurately insert it into the pallet, thereby realizing the separation of the entire pallet stack and the stacking of individual pallets, improving the automation level of the system. At the same time, the toothed assembly can flexibly adapt to pallets of different sizes and shapes, enhancing the versatility and adaptability of the system. Furthermore, the two sets of toothed assemblies improve the stability and safety of stacking.
[0015] 3. This utility model achieves smooth lifting and lowering of the pallet by setting up a lifting component, driving the lifting cylinder, and using a combination of connecting frame, connecting rod one, and connecting rod two. This avoids swaying and tilting of the pallet during the lifting process, ensuring the accuracy and safety of pallet lifting. At the same time, the lifting component allows the pallet to be lifted and lowered at different heights, thus realizing two working modes: separate pallet and stacked pallet, enhancing the flexibility of the system. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the pallet stacking assembly structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the conveying component structure of this utility model;
[0019] Figure 4 This is a schematic diagram of the toothed assembly structure of this utility model;
[0020] Figure 5 for Figure 4 Enlarged view of point A in the middle;
[0021] Figure 6 This is a schematic diagram of the lifting component structure of this utility model;
[0022] Figure 7 for Figure 6 Enlarged view of point B in the middle;
[0023] Figure 8 This is a schematic diagram of the connecting rod 2 and the lifting plate structure in the lifting assembly of this utility model;
[0024] Figure 9 for Figure 8 Enlarged diagram of point C in the middle.
[0025] Reference numerals: 1. Support frame; 11. Pallet side plate; 2. Conveying assembly; 21. Support frame one; 22. Bearing seat one; 23. Rotating shaft one; 24. Sprocket one; 25. Bearing seat two; 26. Rotating shaft two; 27. Sprocket two; 28. Transmission chain one; 29. SEW reducer; 210. Motor one; 211. Sprocket three; 212. Sprocket four; 3. Pallet stacking assembly; 4. Toothed gear assembly; 41. Mounting frame one; 42. Cylinder one; 43. Connector one; 44. Mounting seat one; 45. Toothed gear; 46. Protective shell; 5. Lifting assembly; 51. Mounting frame two; 52. Lifting cylinder; 53. Lifting plate; 54. Mounting seat two; 55. Connecting rod one; 56. Connecting rod two; 57. Mounting seat three; 58. Sensor 6. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.
[0027] like Figures 1-9 As shown, the present invention proposes an automatic pallet stacking system for a palletizer, which includes a support frame 1, several conveying components 2 at the bottom of the support frame 1, a pallet stacking component 3 inside the support frame 1, a pair of toothed components 4 symmetrically arranged on both sides of the pallet stacking component 3, and a lifting component 5 at the bottom of the pallet stacking component 3.
[0028] Several pallet side plates 11 are provided on both the front and rear sides of the support frame 1. The pallet side plates 11 can effectively prevent the pallet from shifting and falling out of the pallet automatic stacking system of the palletizer. A pair of mounting brackets 41 are symmetrically arranged on both sides of the support frame 1. The mounting brackets 41 provide the mounting base for the toothed assembly 4.
[0029] The conveying assembly 2 includes a support frame 21, which provides a mounting base for other components in the conveying assembly 2. A pair of bearing seats 22 are symmetrically arranged on both sides of the support frame 21, supporting the rotation of the rotating shaft 23 and ensuring the smooth operation of the sprocket 24. The rotating shaft 23 is located between the two bearing seats 22, connecting to the sprocket 24. Rotation of the rotating shaft 23 drives the rotation of the sprocket 24. A pair of sprockets 24 are symmetrically arranged on both sides of the rotating shaft 23, cooperating with the transmission chain 28 to transmit power, thereby driving the pallet to move on the conveying assembly 2. The support frame 21 is located away from the rotating shaft 23. A pair of bearing seats 25 are symmetrically arranged on one side, supporting the rotation of the shaft 26 and ensuring the smooth operation of the sprocket 27. The shaft 26 is arranged between the two bearing seats 25 and connects to the sprocket 27. The shaft 26 drives the sprocket 27 to rotate. A pair of sprockets 27 are symmetrically arranged on both sides of the shaft 26. The sprockets 27 cooperate with the transmission chain 28 to realize the transmission of power, thereby driving the pallet to move on the conveying assembly 2. The transmission chain 28 is arranged between the sprocket 24 and the sprocket 27 on the same side. The transmission chain 28 connects the sprocket 24 and the sprocket 27 on the same side to realize the continuous transmission of power.
[0030] A SEW reducer 29 is installed on one side of the support frame 21. The SEW reducer 29 reduces the speed of the motor 210 and increases the torque to ensure that the sprocket 211 rotates at an appropriate speed. The motor 210 is installed on one side of the SEW reducer 29. The motor 210 provides rotational power to the sprocket 211. The drive end of the motor 210 is equipped with the sprocket 211. The outer side of the shaft 23 is fitted with a sprocket 212. A transmission chain is provided between the sprocket 211 and the sprocket 212. The sprocket 211 is driven by the motor 210, and the sprocket 212 is fixed on the shaft 23. The power is transmitted through the transmission chain, which drives the shaft 23 to rotate.
[0031] The tooth assembly 4 includes a cylinder 42 disposed on one side of the mounting bracket 41. The cylinder 42 provides power to the tooth 45, and drives the insertion and retraction of the tooth 45 by the extension and retraction of the telescopic rod. A connector 43 is disposed at the top of the telescopic rod of the cylinder 42, which connects the telescopic rod of the cylinder 42 and the tooth 45 to transmit power. A mounting seat 44 is disposed on the mounting bracket 41 on one side of the cylinder 42, which provides a mounting base for the tooth 45. The tooth 45 is movably disposed on the mounting seat 44. The side of the tooth 45 away from the mounting seat 44 is connected to the connector 43. The tooth 45 acts directly on the tray, and the separation or stacking of the tray is achieved by rotating it to insert into the tray or retracting it to the mounting bracket 41. A protective shell 46 is disposed on one side of the mounting bracket 41, which protects the tooth assembly 4 from external damage and ensures the safety of the operator.
[0032] The lifting assembly 5 includes a second mounting bracket 51 mounted on the support frame 1. The second mounting bracket 51 provides an installation position for the lifting cylinder 52. The lifting cylinder 52 is located at the bottom of the second mounting bracket 51, and its telescopic rod passes through the second mounting bracket 51. The lifting cylinder 52 drives the lifting plate 53 to move up and down by extending and retracting the telescopic rod, thereby realizing the lifting and lowering of the pallet. The lifting plate 53 is located at the top of the telescopic rod of the lifting cylinder 52, providing a storage position for the pallet and ensuring the stability of the pallet during the lifting process. A pair of second mounting seats 54 are symmetrically arranged on both sides of the support frame 1. The second mounting seats 54 provide an installation position for the connecting frame 55 and allow the connecting frame 55 to rotate around the mounting bracket. The second mounting base 54 rotates, and connecting frames 55 are movably mounted on both mounting bases 54 on the same side. The connecting frames 55 provide the mounting base for connecting rod 1 56 and connecting rod 2 57. A pair of connecting rod 1 56 is set between the two connecting frames 55. Connecting rod 1 56 connects the connecting frames 55 on both sides to ensure the stability of the connecting frame 55 when rotating. A pair of connecting rod 2 57 is symmetrically set on both sides of each connecting frame 55. Mounting base 3 58 is set around the bottom of the lifting plate 53. Each mounting base 3 58 is connected to the end of connecting rod 2 57 away from the connecting frame 55. Connecting rod 2 57 connects the connecting frame 55, mounting base 3 58, and lifting plate 53 to ensure the stability of the pallet during the lifting process.
[0033] Several sensors 6 are installed on the support frame 1. These sensors 6 monitor the operation of the automatic pallet stacking system of the palletizer in real time and send signals to the control system. Through the coordinated work of the components, the entire system realizes the automatic stacking and transportation of pallets, which greatly improves the efficiency and accuracy of pallet handling.
[0034] Working Principle: During the palletizing process, all three conveying components 2 convey pallets to the left. First, the telescopic rod of the lifting cylinder 52 retracts, the lifting plate 53 descends, and the lower magnetic switch of the lifting cylinder 52 outputs a signal. The SEW reducer 29 and motor 210 drive sprocket 211. Sprocket 211 drives sprocket 212 to rotate via a transmission chain. Sprocket 212 drives shaft 23 to rotate, which in turn drives sprockets 24 on both sides to rotate. Sprockets 24 drive sprocket 27 via transmission chain 28. This allows the conveying operation to begin. The right-side conveying component 2 conveys the entire pallet stack to the middle conveying component 2. When there is a signal from the pallet sensor, the telescopic rod of the lifting cylinder 52 extends. The lifting plate 53 rises. When the magnetic switch of the lifting cylinder 52 outputs a signal, the telescopic rod of the lifting cylinder 52 stops extending and remains in the middle position. The telescopic rod of cylinder 42 shortens and transmits power to the insert 45 through the connector 43, causing the insert 45 to rotate around the mounting base 44. This allows both insert 45 on both sides to be inserted into the second layer of trays from the bottom up. Then, a magnetic switch signal is output, the telescopic rod of the lifting cylinder 52 retracts, the lifting plate 53 descends, and a single tray is placed on the middle conveying component 2. The lower magnetic switch of the lifting cylinder 52 outputs a signal, and the middle conveying component 2 and the left conveying component 2 are activated, outputting a single tray. At the same time, the right conveying component 2 is activated, and the above process is repeated to enter the next cycle.
[0035] During the pallet stacking process, all three conveying components 2 convey pallets to the right. First, the telescopic rod of the lifting cylinder 52 retracts, the lifting plate 53 descends, and the lower magnetic switch of the lifting cylinder 52 outputs a signal. The left conveying component 2 starts and feeds in a single pallet. When the pallet sensor outputs a signal, the telescopic rod of the lifting cylinder 52 extends, and the lifting plate 53 rises. When the upper magnetic switch of the lifting cylinder 52 outputs a signal, the telescopic rod of the lifting cylinder 52 stops extending and remains in the upper position, while the telescopic rod of cylinder 42 retracts. Power is transmitted to the insert 45 via connector 43, causing the insert 45 to rotate around mounting base 44, insert a single tray, and output a magnetic switch signal. The telescopic rod of lifting cylinder 52 retracts, the lifting plate 53 descends, and the lower magnetic switch of lifting cylinder 52 outputs a signal, activating the left conveying assembly 2 and the middle conveying assembly 2, feeding in a single tray again. The tray detection sensor in the middle conveying assembly 2 outputs a signal, stopping the middle conveying assembly 2. The telescopic rod of lifting cylinder 52 extends, and the lifting plate 53 rises. When the neutral magnetic switch of lifting cylinder 52 outputs a signal, the extension rod of lifting cylinder 52 stops extending and remains in the neutral position. The extension of the extension rod of lifting cylinder 52 causes the first tray to stack on top of the second tray. The extension rod of cylinder 42 extends, causing the insert tooth 45 to retract into mounting bracket 41. Simultaneously, a magnetic switch signal is output, and the extension rod of lifting cylinder 52 continues to extend. When the upper magnetic switch outputs a signal, the extension rod of lifting cylinder 52 stops extending and remains in the upper position. The extension rod of cylinder 42 extends, and the insert tooth 45 inserts... The first pallet from bottom to top is counted, and a magnetic switch signal is output. The process is repeated according to the above procedure. When the upper full pallet photoelectric sensor of the pallet stacking component 3 outputs a switch signal, the entire pallet stack is stacked. The insert tooth 45 retracts into the mounting frame 41, the telescopic rod of the lifting cylinder 52 retracts, the lifting plate 53 and the entire pallet stack descend, the lower magnetic switch of the lifting cylinder 52 outputs a signal, the middle conveying component 2 and the right conveying component 2 are started, and the entire pallet stack is conveyed out. At the same time, the left conveying component 2 is started, and the next cycle begins.
[0036] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.
Claims
1. An automatic pallet stacking system for a palletizer, comprising: The support frame (1) is characterized in that: a number of conveying components (2) are provided at the bottom of the support frame (1), a pallet stacking component (3) is provided inside the support frame (1), a pair of toothed components (4) are symmetrically provided on both sides of the pallet stacking component (3), and a lifting component (5) is provided at the bottom of the pallet stacking component (3).
2. The automatic pallet stacking system for a palletizer according to claim 1, characterized in that: The support frame (1) has several tray side plates (11) on both the front and rear sides, and a pair of mounting brackets (41) are symmetrically arranged on both sides of the support frame (1).
3. The automatic pallet stacking system for a palletizer according to claim 2, characterized in that: The conveying assembly (2) includes a support frame (21), a pair of bearing seats (22) are symmetrically arranged on both sides of the support frame (21), a rotating shaft (23) is arranged between the two bearing seats (22), a pair of sprockets (24) are symmetrically arranged on both sides of the rotating shaft (23), a pair of bearing seats (25) are symmetrically arranged on the side of the support frame (21) away from the rotating shaft (23), a rotating shaft (26) is arranged between the two bearing seats (25), a pair of sprockets (27) are symmetrically arranged on both sides of the rotating shaft (26), and a transmission chain (28) is arranged between the sprockets (24) and sprockets (27) on the same side.
4. The automatic pallet stacking system for a palletizer according to claim 3, characterized in that: A SEW reducer (29) is provided on one side of the support frame (21), a motor (210) is provided on one side of the SEW reducer (29), a sprocket (211) is provided at the transmission end of the motor (210), a sprocket (212) is sleeved on the outside of the shaft (23), and a transmission chain is provided between the sprocket (211) and the sprocket (212).
5. The automatic pallet stacking system for a palletizer according to claim 4, characterized in that: The tooth assembly (4) includes a cylinder (42) disposed on one side of the mounting bracket (41). A connector (43) is provided on the top of the telescopic rod of the cylinder (42). A mounting seat (44) is provided on the mounting bracket (41) on one side of the cylinder (42). A tooth (45) is movably disposed on the mounting seat (44). The tooth (45) is connected to the connector (43) on the side away from the mounting seat (44). A protective shell (46) is provided on one side of the mounting bracket (41).
6. The automatic pallet stacking system for a palletizer according to claim 5, characterized in that: The lifting assembly (5) includes a second mounting bracket (51) set on the support frame (1). A lifting cylinder (52) is set at the bottom of the second mounting bracket (51). The telescopic rod of the lifting cylinder (52) passes through the second mounting bracket (51). A lifting plate (53) is set at the top of the telescopic rod of the lifting cylinder (52). A pair of mounting seats (54) are symmetrically arranged on both sides of the support frame (1). A connecting frame (55) is movably arranged on both mounting seats (54) on the same side. A pair of connecting rods (56) is arranged between the two connecting frames (55). A pair of connecting rods (57) are symmetrically arranged on both sides of each connecting frame (55). A third mounting seat (58) is set around the bottom of the lifting plate (53). Each third mounting seat (58) is connected to the end of the connecting rod (57) away from the connecting frame (55).
7. The automatic pallet stacking system for a palletizer according to claim 6, characterized in that: Several sensors (6) are installed on the support frame (1).