Walking device for stacker crane

Abstract

The utility model relates to the technical field of stackers, and discloses a walking device for a stacker, which comprises a base, the top end of the base is connected with a sliding table in a sliding manner, V-shaped wheels for guiding and supporting the sliding table are mounted on two sides of the bottom end of the sliding table, a polyurethane synchronous belt for driving the sliding table is arranged in the base, and the polyurethane synchronous belt is connected with the sliding table in a sliding manner. A steel wire rope is arranged in the polyurethane synchronous belt, a driven wheel for supporting the polyurethane synchronous belt is arranged on one side of the base, and a driven shaft is fixedly arranged in the middle of the driven wheel. The driving mechanism and the driven wheel are matched with the polyurethane synchronous belt for transmission, no gap exists in the transmission process, the V-shaped wheel effectively eliminates the shaking and creeping phenomena in the operation process, the high-strength steel wire rope is embedded in the polyurethane synchronous belt, the transmission rigidity can be improved, the service life can be prolonged, and the cost of the polyurethane synchronous belt and the V-shaped wheel is far lower than that of a precise gear rack and a linear rail. And the manufacturing cost is obviously reduced.

Description

Technical Field

[0001] This utility model relates to the field of palletizing machine technology, specifically to a walking device for a palletizing machine. Background Technology

[0002] A palletizer is a device that automatically stacks pre-packed cartons onto pallets or stacks (wooden or plastic) in a specific arrangement. Multiple layers can be stacked, and the stacked materials are then pushed out for easy transport by forklift to the warehouse. This equipment uses PLC and touchscreen control for intelligent operation and management. It is simple and easy to operate, significantly reducing labor and labor intensity. The palletizer automatically stacks bags, cartons, or other packaging materials from a conveyor belt according to customer process requirements, and then transports the stacked materials. The walking mechanism is the core component of the palletizer, and its performance directly determines the working range, positioning accuracy, operational stability, and efficiency of the palletizer.

[0003] Currently, most palletizers use guide rails and gear racks or chain sprockets for their walking mechanisms. While gear rack transmission offers high precision, it is also expensive to manufacture and requires extremely high installation accuracy. After prolonged operation, wear can cause gaps, leading to unstable transmission, noise, and vibration, which can affect positioning accuracy. Chain sprocket transmission, while cheaper, offers relatively poor transmission stability and precision. It also requires frequent tension adjustments due to chain elongation, resulting in a large maintenance workload.

[0004] Therefore, existing palletizer walking devices struggle to achieve an ideal balance between accuracy, stability, manufacturing cost, and ease of maintenance, necessitating a new type of walking device to address these issues. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a walking device for palletizing machines, which has the advantages of high precision and good stability, thus solving the problems mentioned in the background art.

[0006] This utility model provides the following technical solution: a walking device for a palletizer, comprising a base, a slide table slidably connected to the top of the base, V-shaped wheels for guiding and supporting the slide table on both sides of the bottom end of the slide table, a polyurethane synchronous belt for driving the slide table inside the base, a steel wire rope inside the polyurethane synchronous belt, a driven wheel for supporting the polyurethane synchronous belt on one side of the base, a driven shaft fixed in the middle of the driven wheel, sliding plates rotatably mounted at both ends of the driven shaft, a tensioning mechanism for tensioning the polyurethane synchronous belt on one side of the sliding plate, and a driving mechanism for driving the polyurethane synchronous belt on the other side of the base.

[0007] As a preferred embodiment of this utility model, wheel seats are fixedly provided on both sides of the bottom end of the slide table, and the V-shaped wheel is rotatably connected to the wheel seat. Guide rails are fixedly provided on both sides of the top end of the base, and the V-shaped wheel is slidably connected to the guide rails. A connecting seat is fixedly provided in the middle of the bottom end of the slide table. A slide rail is opened at the top end of the base, and the connecting seat is slidably connected to the slide rail. Positioning seats are fixedly provided at the bottom of both sides of the connecting seat. Reinforcing ribs are fixedly provided at both ends of the polyurethane synchronous belt, and the reinforcing ribs are riveted to the positioning seats.

[0008] As a preferred technical solution of this utility model, the top of the connecting seat is fixedly provided with a mounting plate, the top of the mounting plate is fixedly connected to the slide table by bolts, the bottom of the slide table is provided with a recess in the middle, and the top of the mounting plate is fixedly provided with a protrusion in the middle, and the protrusion is engaged with the interior of the recess.

[0009] As a preferred embodiment of this utility model, the tensioning mechanism includes a lead screw, a nut threadedly connected to the lead screw, an adjusting plate fixedly connected to the nut, an adjusting rod fixedly provided on one side of the adjusting plate, a push-pull plate fixedly provided at one end of the adjusting rod, and two sliding plates fixedly connected to both sides of the push-pull plate respectively.

[0010] As a preferred technical solution of this utility model, one end of the lead screw is rotatably provided with a support, and an electromagnetic brake motor for driving the lead screw is fixedly installed on one side of the support. The other end of the lead screw is rotatably provided with a support, and a sleeve that is slidably connected to the adjusting rod is fixedly provided on the surface of the support. Both the support and the support are fixedly connected to one side of the base.

[0011] As a preferred technical solution of this utility model, the driving mechanism includes a drive shaft, a drive wheel is fixedly provided in the middle of the drive shaft, the driven wheel is connected to the drive wheel through a polyurethane synchronous belt, and upright plates are rotatably provided at both ends of the drive shaft. The upright plates are fixedly connected to the other side of the base, and an electromagnetic brake motor for driving the drive shaft is fixedly installed on one side of one of the upright plates.

[0012] As a preferred technical solution of this utility model, two guide strips are fixedly provided on the inner wall of the top side and the inner wall of the bottom side of the base, and the slide plate is slidably connected to the guide strips.

[0013] As a preferred technical solution of this utility model, the base is internally fixed with two reinforcing plates to strengthen it, and the middle of the top and bottom of the reinforcing plates are provided with notches corresponding to the polyurethane synchronous belt.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The walking device for the palletizer adopts a drive mechanism and driven wheel in conjunction with a polyurethane synchronous belt drive. The transmission process is backlash-free, with fast response speed and high positioning accuracy. The V-shaped wheel effectively eliminates shaking and crawling during operation, resulting in smooth operation. Because the polyurethane synchronous belt is embedded with high-strength steel wire rope, it can improve transmission rigidity and service life. The cost of polyurethane synchronous belt and V-shaped wheel is much lower than that of precision gear rack and pinion and linear rail, which significantly reduces manufacturing costs.

[0016] 2. The walking device for palletizing machines can automatically adjust the position of the driven wheel through the tensioning mechanism to adjust the tension of the polyurethane synchronous belt. The design of the synchronous belt and tensioning mechanism makes adjustment and maintenance very simple and can be completed without professional tools. It effectively solves the contradictions of traditional walking devices in terms of accuracy, cost and maintenance, and is particularly suitable for palletizing machine application scenarios with high requirements for cost performance and stability. Attached Figure Description

[0017] Figure 1 This is one of the structural schematic diagrams of this utility model;

[0018] Figure 2 This is the second structural schematic diagram of the present invention;

[0019] Figure 3 This is a schematic diagram of the internal structure of the base of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the slide table of this utility model;

[0021] Figure 5 This is a schematic diagram of the tensioning mechanism of this utility model;

[0022] Figure 6 This is a schematic diagram of the drive mechanism of this utility model.

[0023] In the diagram: 1. Base; 2. Slide table; 3. V-shaped wheel; 4. Polyurethane synchronous belt; 5. Driven wheel; 6. Driven shaft; 7. Slide plate; 8. Tensioning mechanism; 801. Lead screw; 802. Nut; 803. Adjusting plate; 804. Adjusting rod; 805. Push-pull plate; 806. Support 1; 807. Electromagnetic brake motor 1; 808. Support 2; 809. Rod sleeve; 9. Drive mechanism; 901. Drive shaft; 902. Drive wheel; 903. Vertical plate; 904. Electromagnetic brake motor 2; 10. Wheel seat; 11. Guide rail; 12. Connecting seat; 13. Slide track; 14. Mounting plate; 15. Protrusion; 16. Recess; 17. Reinforcing rib; 18. Positioning seat; 19. Guide bar; 20. Reinforcing plate; 21. Notch. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-6 The walking device for a palletizer includes a base 1, a slide table 2 slidably connected to the top of the base 1, and V-shaped wheels 3 mounted on both sides of the bottom of the slide table 2 for guidance and support. A polyurethane synchronous belt 4 drives the slide table 2 inside the base 1, and a steel wire rope is installed inside the polyurethane synchronous belt 4. A driven wheel 5 supporting the polyurethane synchronous belt 4 is located on one side of the base 1. A driven shaft 6 is fixed in the middle of the driven wheel 5, and sliding plates 7 are rotatably mounted at both ends of the driven shaft 6. A tensioning mechanism 8 for tensioning the polyurethane synchronous belt 4 is located on one side of the sliding plate 7. A drive mechanism 9 for driving the polyurethane synchronous belt 4 is located on the other side of the base 1. The drive mechanism 9, driven wheel 5, and polyurethane synchronous belt 4 are used for transmission. The process is seamless, with fast response and high positioning accuracy. The V-wheel 3 effectively eliminates shaking and crawling during operation, ensuring smooth running. Because the polyurethane synchronous belt 4 is embedded with high-strength steel wire rope, it can improve transmission rigidity and life. The cost of the polyurethane synchronous belt 4 and V-wheel 3 is much lower than that of precision gear racks and linear rails, significantly reducing manufacturing costs. The tensioning mechanism 8 can automatically adjust the position of the driven wheel 5 to adjust the tension of the polyurethane synchronous belt 4. The design of the synchronous belt and tensioning mechanism 8 makes adjustment and maintenance very simple and can be completed without professional tools. It effectively solves the contradictions of traditional walking devices in terms of accuracy, cost, and maintenance, and is particularly suitable for palletizing machine applications with high requirements for cost-effectiveness and stability.

[0026] In this embodiment, preferably, the tensioning mechanism 8 includes a lead screw 801, a nut 802 threadedly connected to the lead screw 801, an adjusting plate 803 fixedly connected to the nut 802, an adjusting rod 804 fixedly mounted on one side of the adjusting plate 803, a push-pull plate 805 fixedly mounted on one end of the adjusting rod 804, and two sliding plates 7 fixedly connected to both sides of the push-pull plate 805 respectively. A support 806 is rotatably mounted on one end of the lead screw 801, an electromagnetic brake motor 807 for driving the lead screw 801 is fixedly mounted on one side of the support 806, and a second support 808 is rotatably mounted on the other end of the lead screw 801. A surface of the second support 808 is fixedly decorated with... The sleeve 809, which is slidably connected to the adjusting rod 804, and the first support 806 and the second support 808 are all fixedly connected to one side of the base 1. The first support 806 and the second support 808 can provide support for both ends of the lead screw 801. The lead screw 801 is driven by the first electromagnetic brake motor 807. The nut 802 can convert the rotational motion of the lead screw 801 into the linear motion of the adjusting plate 803. The sleeve 809 can guide the adjusting rod 804. The adjusting rod 804 can push and pull the slide plate 7 through the push-pull plate 805, so that the position of the driven wheel 5 can be automatically adjusted. The first electromagnetic brake motor 807 can realize the self-locking of the lead screw 801.

[0027] In this embodiment, preferably, the drive mechanism 9 includes a drive shaft 901, a drive wheel 902 is fixedly provided in the middle of the drive shaft 901, and a driven wheel 5 is connected to the drive wheel 902 through a polyurethane synchronous belt 4. Both ends of the drive shaft 901 are rotatably provided with upright plates 903, and the upright plates 903 are fixedly connected to the other side of the base 1. An electromagnetic brake motor 904 for driving the drive shaft 901 is fixedly installed on one side of one of the upright plates 903. The upright plates 903 can provide support for both ends of the drive shaft 901. The drive shaft 901 is driven by the electromagnetic brake motor 904, and the drive shaft 901 can drive the drive wheel 902 to rotate. The drive wheel 902 and the driven wheel 5 can control the movement of the polyurethane synchronous belt 4, and the electromagnetic brake motor 904 can realize the self-locking of the drive shaft 901.

[0028] In this embodiment, preferably, wheel seats 10 are fixedly provided on both sides of the bottom end of the slide table 2, and V-shaped wheels 3 are rotatably connected to the wheel seats 10. Guide rails 11 are fixedly provided on both sides of the top end of the base 1, and V-shaped wheels 3 are slidably connected to the guide rails 11. A connecting seat 12 is fixedly provided in the middle of the bottom end of the slide table 2. A slide rail 13 is opened at the top end of the base 1, and the connecting seat 12 is slidably connected to the slide rail 13. Positioning seats 18 are fixedly provided at the bottom of both sides of the connecting seat 12. Reinforcing ribs 17 are fixedly provided at both ends of the polyurethane synchronous belt 4, and the reinforcing ribs 17 are riveted to the positioning seats 18. A mounting plate 14 is fixedly provided at the top end of the connecting seat 12, and the top end of the mounting plate 14 is... The slide table 2 is fixedly connected to the slide table 2 by bolts. A recess 16 is provided in the middle of the bottom end of the slide table 2. A protrusion 15 is fixed in the middle of the top end of the mounting plate 14. The protrusion 15 is engaged with the interior of the recess 16. The wheel seat 10 can provide support for the V-shaped wheel 3. The guide rail 11 can guide the V-shaped wheel 3. The mounting plate 14 can fix the connecting seat 12 to the bottom end of the slide table 2. The recess 16 and the protrusion 15 can improve the firmness of the connecting seat 12. The slide rail 13 can ensure the linear movement of the connecting seat 12. The connecting seat 12 can be connected to the polyurethane synchronous belt 4 by riveting the reinforcing rib 17 to the positioning seat 18.

[0029] In this embodiment, preferably, two guide strips 19 are fixedly provided on the inner wall of the top side and the inner wall of the bottom side of the base 1. The slide plate 7 is slidably connected to the guide strips 19. Two reinforcing plates 20 are fixedly provided inside the base 1 to strengthen it. The middle of the top and the middle of the bottom of the reinforcing plate 20 are provided with notches 21 corresponding to the polyurethane synchronous belt 4. The guide strips 19 can guide the slide plate 7 and prevent the slide plate 7 from tilting. The reinforcing plates 20 can strengthen the inside of the base 1 and improve the overall strength of the base 1. The notches 21 can prevent the reinforcing plates 20 from contacting the polyurethane synchronous belt 4.

[0030] When in use, the base 1 is securely installed in the predetermined working position of the palletizer, ensuring that it is in a horizontal state. Check whether the V-shaped wheel 3 at the bottom of the slide table 2 is in good contact with the guide rail 11 at the top of the base 1. Check whether the polyurethane synchronous belt 4 is correctly wrapped around the driving wheel 902 of the drive mechanism 9 and the driven wheel 5 on the side of the tensioning mechanism 8. Start the electromagnetic brake motor 807 of the tensioning mechanism 8 to drive the lead screw 801 to rotate. The lead screw 801 drives the nut 802 to move linearly, and then pushes or pulls the slide plates 7 on both sides through the adjusting plate 803, adjusting rod 804 and push-pull plate 805. The slide plates 7 slide along the guide bar 19, changing the position of the driven wheel 5, thereby achieving precise adjustment of the tension of the polyurethane synchronous belt 4. After adjusting to the required tension, the braking function of the electromagnetic brake motor 807 can automatically lock the lead screw 801 to maintain a stable tension. This process does not require additional tools and is simple and easy to perform.

[0031] When the slide table 2 needs to be driven, the electromagnetic brake motor 904 of the drive mechanism 9 is activated, driving the drive shaft 901 and drive wheel 902 to rotate. The drive wheel 902 drives the driven wheel 5 through the polyurethane synchronous belt 4, forming a closed-loop transmission. The polyurethane synchronous belt 4 is riveted to the positioning seat 18 on the connecting seat 12 at the bottom of the slide table 2 through the reinforcing ribs 17 at both ends, thereby driving the slide table 2 to move linearly along the guide rail 11. The V-shaped wheel 3 rolls on the guide rail 11, providing support and guidance to ensure smooth and wobbly operation. When the electromagnetic brake motor 904 stops supplying power, its built-in brake will automatically activate to lock the drive shaft 901, realizing the rapid and precise stopping and positioning of the slide table 2. In emergency situations or when it is necessary to maintain the position, this braking function can effectively prevent the slide table 2 from moving.

[0032] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A walking device for a palletizer, comprising a base (1), characterized in that: The top of the base (1) is slidably connected to a slide (2). V-shaped wheels (3) are installed on both sides of the bottom of the slide (2) to guide and support it. The base (1) is equipped with a polyurethane synchronous belt (4) that drives the slide (2). The polyurethane synchronous belt (4) is equipped with a steel wire rope. One side of the base (1) is equipped with a driven wheel (5) that supports the polyurethane synchronous belt (4). A driven shaft (6) is fixed in the middle of the driven wheel (5). Slide plates (7) are rotatably provided at both ends of the driven shaft (6). A tensioning mechanism (8) for tensioning the polyurethane synchronous belt (4) is provided on one side of the slide plate (7). A drive mechanism (9) for driving the polyurethane synchronous belt (4) is provided on the other side of the base (1).

2. The walking device for a palletizer according to claim 1, characterized in that: Wheel seats (10) are fixedly provided on both sides of the bottom end of the slide table (2). The V-shaped wheel (3) is rotatably connected to the wheel seat (10). Guide rails (11) are fixedly provided on both sides of the top end of the base (1). The V-shaped wheel (3) is slidably connected to the guide rail (11). A connecting seat (12) is fixedly provided in the middle of the bottom end of the slide table (2). A slide rail (13) is opened at the top end of the base (1). The connecting seat (12) is slidably connected to the slide rail (13). Positioning seats (18) are fixedly provided at the bottom of both sides of the connecting seat (12). Reinforcing ribs (17) are fixedly provided at both ends of the polyurethane synchronous belt (4). The reinforcing ribs (17) are riveted to the positioning seats (18).

3. The walking device for a palletizer according to claim 2, characterized in that: The top of the connecting seat (12) is fixedly provided with a mounting plate (14), the top of the mounting plate (14) is fixedly connected to the slide (2) by bolts, the bottom of the slide (2) is provided with a recess (16), the top of the mounting plate (14) is fixedly provided with a protrusion (15), and the protrusion (15) is engaged with the interior of the recess (16).

4. The walking device for a palletizer according to claim 1, characterized in that: The tensioning mechanism (8) includes a lead screw (801), which is threaded with a nut (802). The nut (802) is fixedly connected to an adjusting plate (803). An adjusting rod (804) is fixedly provided on one side of the adjusting plate (803). A push-pull plate (805) is fixedly provided at one end of the adjusting rod (804). The two sides of the push-pull plate (805) are respectively fixedly connected to two sliding plates (7).

5. The walking device for a palletizer according to claim 4, characterized in that: One end of the lead screw (801) is rotatably provided with a support (806), and an electromagnetic brake motor (807) for driving the lead screw (801) is fixedly installed on one side of the support (806). The other end of the lead screw (801) is rotatably provided with a support (808), and a sleeve (809) that is slidably connected to the adjusting rod (804) is fixedly provided on the surface of the support (808). Both the support (806) and the support (808) are fixedly connected to one side of the base (1).

6. The walking device for a palletizer according to claim 1, characterized in that: The drive mechanism (9) includes a drive shaft (901), a drive wheel (902) is fixedly provided in the middle of the drive shaft (901), and the driven wheel (5) is connected to the drive wheel (902) through a polyurethane synchronous belt (4). Both ends of the drive shaft (901) are provided with upright plates (903), and the upright plates (903) are fixedly connected to the other side of the base (1). An electromagnetic brake motor (904) for driving the drive shaft (901) is fixedly installed on one side of one of the upright plates (903).

7. The walking device for a palletizer according to claim 1, characterized in that: The inner wall of the top side and the inner wall of the bottom side of the base (1) are both fixedly provided with two guide strips (19), and the slide plate (7) is slidably connected to the guide strips (19).

8. The walking device for a palletizer according to claim 1, characterized in that: The base (1) is fixedly provided with two reinforcing plates (20) for strengthening it. The middle of the top and bottom of the reinforcing plates (20) are provided with notches (21) corresponding to the polyurethane synchronous belt (4).

Images