A mechanical arm palletizing goods buffer device

Abstract

The application relates to the technical field of logistics buffering, and particularly discloses a goods buffering device for mechanical arm stacking, which comprises a conveying part and a mechanical hand, the mechanical hand is placed above the conveying part through a frame and is used for stacking goods on the conveying part, and a feeding part is arranged on the conveying part and is used for feeding the conveying part; the conveying part is composed of a conveying belt and a buffering belt, telescopic cylinders are connected to surfaces of the conveying belt and the buffering belt, the feeding part is connected to the conveying belt and the buffering belt through the telescopic cylinders, and the surface of the conveying belt is provided with a trigger assembly which can sense goods on the surface of the conveying belt; the conveying part is jointly formed by the conveying belt and the buffering belt, when the goods are in a time period of a logistics wave crest, the feeding direction of the feeding part can be changed through the trigger assembly arranged on the conveying belt, then the goods are sent to the buffering belt, the logistics is segmented, the working pressure of the mechanical hand is reduced, and congestion on the conveying belt is avoided.

Description

Technical Field

[0001] This invention relates to the field of logistics buffering technology, specifically to a cargo buffering device for robotic arm palletizing. Background Technology

[0002] A palletizing robotic arm is an automated device widely used in logistics, warehousing, and production lines. It enables fast and accurate stacking and palletizing of goods. Through advanced sensor technology and a sophisticated control system, it can automatically complete various complex tasks according to preset programs.

[0003] Existing logistics often involves transporting goods by vehicle, resulting in peak and trough periods for the palletizing robotic arm and the conveyor belt. During peak periods, due to the transport of entire truckloads of goods, a large amount of goods may accumulate on the main conveyor belt in a short time, easily causing cargo accumulation. To address this, we propose a cargo buffer device for robotic arm palletizing. Summary of the Invention

[0004] The purpose of this invention is to provide a cargo buffer device for robotic arm palletizing, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a cargo buffer device for robotic arm palletizing, comprising a conveying section and a robotic arm, wherein the robotic arm is placed above the conveying section via a frame for stacking cargo on the conveying section, and the conveying section is provided with a feeding section for feeding cargo onto the conveying section;

[0006] The conveying unit is composed of a conveyor belt and a buffer belt. Telescopic cylinders are connected to the surfaces of the conveyor belt and the buffer belt. The feeding unit is connected to the conveyor belt and the buffer belt through the telescopic cylinders. The surface of the conveyor belt is provided with a triggering component that can sense the goods on the surface of the conveyor belt.

[0007] The buffer strip can transfer excess goods to its surface after the triggering component is activated, and the surface of the buffer strip is provided with a switching component to restrict excess goods.

[0008] The triggering component includes a chute located on the inner surface of the conveyor belt. A slider is slidably connected inside the chute, and an electric roller is rotatably connected to the end of the slider away from the chute. A pressing groove is formed at the lower end of the inner surface of the chute, and a pressing rod is slidably connected inside the pressing groove. The upper end of the pressing rod is fixedly connected to the lower end of the slider. A pressing cavity is formed at the lower end of the inner surface of the pressing groove, and a triggering unit for changing the feeding direction of the feeding section is provided on one side of the pressing cavity.

[0009] The lower end of the inner surface of the pressing chamber is provided with a pressing groove. A spring is fixedly connected to the lower end of the inner surface of the pressing groove. A pressing rod is fixedly connected to the upper end of the spring. The pressing rod is in contact with the pressing groove. A conductive ring is fixedly connected to the outer annular surface of the pressing rod. A resistor is fixedly connected to the inner annular surface of the pressing groove, and the conductive ring is in contact with the resistor.

[0010] The triggering unit includes a pushing groove that runs through the conveyor belt. A pushing block slides inside the pushing groove. A trigger plate is connected to the end of the pushing block away from the pressure chamber. The trigger plate and the pushing block are designed in an L-shape. A blocking block is fixedly connected to the outer surface of the conveyor belt at the position corresponding to the pushing block. A switch is fixedly connected to the inner side of the blocking block. The switch is electrically connected to the feeding part.

[0011] A spring rod is fixedly connected between the trigger plate and the push block, and a magnetic plate is fixedly connected to one end of the trigger plate near the conveyor belt.

[0012] The switching assembly includes a switching groove located inside the buffer belt. A switching plate is rotatably connected to the inside of the switching groove via a rotating shaft. A blocking plate is fixedly connected to the inner surface of the buffer belt. The inner side of the switching plate is rotatably connected to an electric roller via a rotating shaft. A driving cavity is provided inside the switching groove. A driving wheel is rotatably connected to the inside of the driving cavity via a rotating shaft. A driving rod is engaged with the outer surface of the driving wheel. A spring is fixedly connected between the end of the driving rod and the driving cavity. A sliding stop rod is fixedly connected to the side of the driving rod away from the spring. A driving groove is provided at the corresponding position of the switching plate and the sliding stop rod. The sliding stop rod is located inside the driving groove.

[0013] The drive groove is designed with an inclined structure, and the teeth on the annular outer surface of the drive wheel surround a quarter of the annular outer surface of the drive wheel.

[0014] The drive wheel has a ratchet groove at the end away from the drive cavity. A ratchet rod is rotatably connected inside the ratchet groove via a rotating shaft. The ratchet rod can connect to the electric roller at one end of the ratchet groove.

[0015] This invention has at least the following beneficial effects:

[0016] The conveying unit consists of a conveyor belt and a buffer belt. During peak logistics periods, the delivery direction of the feeding unit can be changed by trigger components on the conveyor belt, thereby sending the goods to the buffer belt, segmenting the logistics, reducing the workload of the robotic arm, and preventing congestion on the conveyor belt. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the triggering component of the present invention;

[0019] Figure 3 For the present invention Figure 2 Large-scale schematic diagram of the structure at point A in the middle;

[0020] Figure 4 This is a schematic diagram of the transverse cross-sectional structure of the conveyor belt of the present invention;

[0021] Figure 5 For the present invention Figure 4 Enlarged structural diagram at point B;

[0022] Figure 6 This is a cross-sectional view of the triggering component of the present invention;

[0023] Figure 7 This is a schematic diagram of the structure of the telescopic cylinder of the present invention lifting the feeding section;

[0024] Figure 8 This is a schematic diagram of the position and structure of the blocking plate of the present invention;

[0025] Figure 9 This is a schematic diagram of the switching component of the present invention;

[0026] Figure 10 For the present invention Figure 9 Schematic diagram of the structure at point C;

[0027] Figure 11 This is a schematic diagram of the other side of the switching component of the present invention;

[0028] Figure 12 This is an exploded view of the switching component of the present invention.

[0029] In the diagram: 1. Conveying section; 10. Feeding section; 11. Robotic arm; 12. Buffer belt; 13. Conveyor belt; 15. Telescopic cylinder; 2. Switching assembly; 20. Switching groove; 21. Switching plate; 22. Baffle plate; 23. Drive chamber; 24. Drive rod; 241. Guide rod; 242. Slide bar; 25. Spring 1; 26. Drive wheel; 27. Ratchet rod; 28. Ratchet groove; 29. ​​Drive groove; 4. Trigger assembly; 40. Slide groove; 41. Slider; 42. Spring 2; 43. Electric roller; 44. Pressing rod; 45. Pressing groove; 46. Pressing chamber; 47. Extrusion groove; 48. Extrusion rod; 49. Spring 3; 50. Push block; 501. Pushing groove; 51. Spring rod; 52. Trigger plate; 53. Magnetic plate; 54. Switch; 55. Baffle block; 56. Conductive ring; 57. Resistor. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Example 1

[0032] Please see Figure 1-12 The present invention provides a technical solution: a cargo buffer device for palletizing with a robotic arm, comprising a conveying section 1 and a robotic arm 11. The robotic arm 11 is placed above the conveying section 1 via a frame for stacking cargo on the conveying section 1. The conveying section 1 is provided with a feeding section 10 for feeding cargo onto the conveying section 1. The feeding section 10 is driven by a motor.

[0033] The conveying unit 1 is composed of a conveyor belt 13 and a buffer belt 12. Telescopic cylinders 15 are connected to the surfaces of the conveyor belt 13 and the buffer belt 12. The feeding unit 10 is connected to the conveyor belt 13 and the buffer belt 12 through the telescopic cylinders 15. The surface of the conveyor belt 13 is provided with a triggering component 4 that can sense the goods on the surface of the conveyor belt 13. When the goods on the surface of the conveyor belt 13 reach a certain quantity, the triggering component 4 changes the feeding direction of the feeding unit 10, thereby relieving the pressure of the goods on the surface of the conveyor belt 13.

[0034] After the trigger component 4 is activated, the buffer belt 12 can transfer excess goods to the surface of the buffer belt 12. The surface of the buffer belt 12 is provided with a switching component 2 to restrict excess goods. Goods that change direction enter the buffer zone. After the goods inside the buffer belt 12 are stacked on the surface of the conveyor belt 13, the buffer belt 12 turns in the opposite direction to transport the goods to the surface of the conveyor belt 13.

[0035] The triggering component 4 includes a chute 40, which is formed on the inner surface of the conveyor belt 13. A slider 41 is slidably connected inside the chute 40, and a spring 42 is fixedly connected between the slider 41 and the chute 40. An electric roller 43 is rotatably connected to the end of the slider 41 away from the chute 40. There are several sets of electric rollers 43, which are driven by a power source. A pressing groove 45 is formed at the lower end of the inner surface of the chute 40. A pressing rod 44 is slidably connected inside the pressing groove 45. The upper end of the pressing rod 44 is fixedly connected to the lower end of the slider 41. A pressing cavity 46 is formed at the lower end of the inner surface of the pressing groove 45. One side is provided with a trigger unit to change the feeding direction of the feeding section 10. When multiple sets of electric rollers 43 are squeezed by the goods, they will slide down along the slide groove 40 through the slider 41 and compress the spring 42. At this time, the slider 41 will drive the pressure rod 44 to move down and squeeze the fluid inside the pressure chamber 46 into the pressure chamber 46. When a sufficient number of electric rollers 43 are squeezed and the pressure generated by the fluid inside the pressure chamber 46 is large enough, the trigger unit is pushed to make the feeding section 10 reverse energized and send the goods on the surface of the feeding section 10 to the surface of the buffer belt 12, thereby reducing the material pressure on the surface of the conveyor belt 13. The trigger unit is electrically connected to the feeding section 10.

[0036] A compression groove 47 is formed at the lower end of the inner surface of the compression chamber 46. A spring 49 is fixedly connected to the lower end of the inner surface of the compression groove 47, and a compression rod 48 is fixedly connected to the upper end of the spring 49. The compression rod 48 fits into the compression groove 47, and a conductive ring 56 is fixedly connected to the annular outer surface of the compression rod 48. A resistor 57 is fixedly connected to the annular inner surface of the compression groove 47, and the conductive ring 56 fits into the resistor 57. As the pressure inside the compression chamber 46 gradually increases, the compression rod 48 will be compressed and move along the compression groove 47. 7 moves downwards, compressing spring 3 49. The space where spring 3 49 is located is a vacuum space. During the downward sliding process of the extrusion rod 48, the conductive ring 56 is always in contact with the resistive sheet 57. The resistance on the surface of the resistive sheet 57 gradually decreases from top to bottom. As the conductive ring 56 contacts the resistive sheet 57, the current through the resistive sheet 57 and the conductive ring 56 changes, thereby changing the electrical signal. This causes the rotation speed of the electric roller 43 and the rotation speed of the robot arm 11 to increase accordingly, so that the stacking speed of the goods can be automatically changed according to the amount of goods on the surface of the conveyor belt 13.

[0037] The triggering unit includes a push groove 501 that passes through the conveyor belt 13. A push block 50 slides inside the push groove 501. A trigger plate 52 is connected to one end of the push block 50 away from the lower pressure chamber 46. The trigger plate 52 and the push block 50 are designed in an L-shape. A blocking block 55 is fixedly connected to the outer surface of the conveyor belt 13 at a position corresponding to the push block 50. A switch 54 is fixedly connected to the inner side of the blocking block 55. The switch 54 is electrically connected to the feeding part 10.

[0038] When the push block 50 is pushed by the fluid to move toward the blocking block 55, the push block 50 and the trigger plate 52 move toward the switch 54 on the surface of the blocking plate 22 until they touch the switch 54. The switch 54 is electrically connected to the feeding part 10. After the switch 54 is triggered, the feeding part 10 opens in the reverse direction and delivers the material to the surface of the buffer belt 12.

[0039] A spring rod 51 is fixedly connected between the trigger plate 52 and the push block 50. A magnetic plate 53 is fixedly connected to one end of the trigger plate 52 near the conveyor belt 13. Only when the push block 50 squeezes the spring rod 51 to a certain pressure will the elastic force of the spring rod 51 burst, suddenly pushing the trigger plate 52 to touch the switch 54. This ensures that the switch 54 can only be activated after the goods on the surface of the conveyor belt 13 have accumulated to a certain extent, thus avoiding poor contact caused by slow triggering of the switch 54.

[0040] The switching assembly 2 includes a switching groove 20, which is located inside the buffer belt 12. A switching plate 21 is rotatably connected inside the switching groove 20 via a rotating shaft. A blocking plate 22 is fixedly connected to the inner surface of the buffer belt 12. The inner side of the switching plate 21 is rotatably connected to an electric roller 43 via a rotating shaft. A driving cavity 23 is provided inside the switching groove 20. A driving wheel 26 is rotatably connected inside the driving cavity 23 via a rotating shaft. A driving rod 24 is engaged on the outer surface of the driving wheel 26. A spring 25 is fixedly connected between the end of the driving rod 24 and the driving cavity 23. A sliding rod 242 is fixedly connected to the side of the driving rod 24 away from the spring 25. A driving groove 29 is provided at the corresponding position of the switching plate 21 and the sliding rod 242. The sliding rod 242 is located inside the driving groove 29.

[0041] When the buffer belt 12 is storing goods, the switching plate 21 is tilted and will not block the goods delivered by the feeding section 10. When there are no goods on the surface of the conveyor belt 13, the electric roller 43 is no longer under pressure. At this time, the springs 42 are fully reset, thereby forcing the push block 50 and the trigger plate 52 to slide and reset along the push groove 501. Then, the user controls the telescopic cylinder 15 to lift the feeding section 10 and cause the buffer belt 12 to deliver goods in the opposite direction. One of the electric rollers 43 inside the buffer belt 12 rotates once, and the drive rod 24 that meshes with the drive wheel 26 pulls the slide bar 242 to move horizontally along the direction of the drive rod 24, thereby making the slide bar 242 contact the drive groove 29. Through the contact with the drive groove 29, the switching plate 21 is lifted, so that the blocking plate 22 can intermittently block the goods on the surface of the buffer belt 12, making the goods leading to the conveyor belt 13 sparse, reducing the workload of the robot arm 11 at the peak of the goods, thereby reducing the wear of the robot arm 11.

[0042] The drive groove 29 is designed with an inclined structure. The guide rod 241, which matches the surface of the drive rod 24 and the drive cavity 23, restricts the range of motion of the drive rod 24. The teeth on the annular outer surface of the drive wheel 26 surround a quarter of the annular outer surface of the drive wheel 26, so that when the electric roller 43 rotates, it can drive the switching plate 21 to lift upward only when the toothed part contacts the drive rod 24.

[0043] Example 2

[0044] The drive wheel 26 has a ratchet groove 28 at the end away from the drive cavity 23. The ratchet groove 28 is rotatably connected to a ratchet rod 27 through a rotating shaft. The ratchet rod 27 can connect one end of the ratchet groove 28 to the electric roller 43. In this solution, the switching plate 21 can only be activated when the goods are sent from the buffer belt 12 to the surface of the conveyor belt 13, thereby reducing the wear of the sliding bar 242 and the drive groove 29.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0046] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cargo buffer device for palletizing with a robotic arm, comprising a conveying section (1) and a robotic arm (11), wherein the robotic arm (11) is placed above the conveying section (1) via a frame for palletizing cargo on the conveying section (1), and the conveying section (1) is provided with a feeding section (10) for feeding cargo onto the conveying section (1). Its features are: The conveying unit (1) is composed of a conveyor belt (13) and a buffer belt (12). Telescopic cylinders (15) are connected to the surfaces of the conveyor belt (13) and the buffer belt (12). The feeding unit (10) is connected to the conveyor belt (13) and the buffer belt (12) through the telescopic cylinders (15). The surface of the conveyor belt (13) is provided with a triggering component (4) that can sense the goods on the surface of the conveyor belt (13). The buffer strip (12) can transfer excess goods to the surface of the buffer strip (12) after the trigger component (4) is activated, and the surface of the buffer strip (12) is provided with a switching component (2) to restrict excess goods. The triggering component (4) includes a chute (40), which is opened on the inner surface of the conveyor belt (13). A slider (41) is slidably connected inside the chute (40). An electric roller (43) is rotatably connected to one end of the slider (41) away from the chute (40). A pressing groove (45) is opened at the lower end of the inner surface of the chute (40). A pressing rod (44) is slidably connected inside the pressing groove (45). The upper end of the pressing rod (44) is fixedly connected to the lower end of the slider (41). A pressing cavity (46) is opened at the lower end of the inner surface of the pressing groove (45). A triggering unit for changing the feeding direction of the feeding part (10) is provided on one side of the pressing cavity (46). The triggering unit includes a push groove (501) that runs through the conveyor belt (13). A push block (50) slides inside the push groove (501). A trigger plate (52) is connected to one end of the push block (50) away from the pressure chamber (46). The trigger plate (52) and the push block (50) are designed in an L-shape. A blocking block (55) is fixedly connected to the outer surface of the conveyor belt (13) at the position corresponding to the push block (50). A switch (54) is fixedly connected to the inner side of the blocking block (55). The switch (54) is electrically connected to the feeding part (10). The switching assembly (2) includes a switching groove (20), which is located inside the buffer belt (12). A switching plate (21) is rotatably connected inside the switching groove (20) via a rotating shaft. A baffle plate (22) is fixedly connected to the inner surface of the buffer belt (12). The inner side of the switching plate (21) is rotatably connected to an electric roller (43) via a rotating shaft. A drive cavity (23) is provided inside the switching groove (20). A drive wheel (26) is rotatably connected inside the drive cavity (23) via a rotating shaft. A drive rod (24) is engaged on the outer surface of the drive wheel (26). A spring (25) is fixedly connected between the end of the drive rod (24) and the drive cavity (23). A sliding rod (242) is fixedly connected to the side of the drive rod (24) away from the spring (25). A drive groove (29) is provided at the corresponding position of the switching plate (21) and the sliding rod (242). The sliding rod (242) is located inside the drive groove (29).

2. The cargo buffer device for robotic arm palletizing according to claim 1, characterized in that: The lower end of the inner surface of the pressing chamber (46) is provided with a pressing groove (47). A spring three (49) is fixedly connected to the lower end of the inner surface of the pressing groove (47). A pressing rod (48) is fixedly connected to the upper end of the spring three (49). The pressing rod (48) is in contact with the pressing groove (47). A conductive ring (56) is fixedly connected to the outer annular surface of the pressing rod (48). A resistor (57) is fixedly connected to the inner annular surface of the pressing groove (47), and the conductive ring (56) is in contact with the resistor (57).

3. The cargo buffer device for robotic arm palletizing according to claim 2, characterized in that: A spring rod (51) is fixedly connected between the trigger plate (52) and the push block (50), and a magnetic plate (53) is fixedly connected to one end of the trigger plate (52) near the conveyor belt (13).

4. The cargo buffer device for robotic arm palletizing according to claim 3, characterized in that: The drive groove (29) is designed with an inclined structure, and the teeth on the annular outer surface of the drive wheel (26) surround a quarter of the annular outer surface of the drive wheel (26).

5. The cargo buffer device for robotic arm palletizing according to claim 4, characterized in that: The drive wheel (26) has a ratchet groove (28) at one end away from the drive cavity (23). A ratchet rod (27) is rotatably connected inside the ratchet groove (28) via a rotating shaft. The ratchet rod (27) can connect one end of the ratchet groove (28) to the electric roller (43).

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