A pallet tipper detection device for a palletizer

Abstract

The utility model relates to the technical field of stacking machine, and disclose a kind of stacking machine tray side overturning detection device, including the stacking machine loading platform base, the both sides of the stacking machine loading platform base are fixed with stacking machine loading platform main body, wherein the front and rear end of stacking machine loading platform base is opened with sliding slot, the inside of sliding slot is provided with side plate, the upper portion of the stacking machine loading platform base is equipped with fork, and the upper portion of fork is placed with tray.The stacking machine tray side overturning detection device, spring universal switch is arranged near the stacking machine loading platform base, when stacking machine enters warehouse operation, abnormal, deformation, damaged tray can be effectively detected, meanwhile, the position of tray can also be detected to deviate, the phenomenon of tray side overturning goods in the process of taking goods caused by tray deformation, damage or position deviation can be very effectively avoided, and the damage rate of goods is greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of stacker crane technology, specifically a pallet tipping detection device for stacker cranes. Background Technology

[0002] With the development of production and the application of modern technology, the cost of production has been greatly reduced. The proportion of logistics and distribution costs in the total cost is increasing. Meanwhile, the increasingly expensive land cost accounts for a larger proportion of the construction of new logistics center warehouses. Due to the large area required, flat warehouses in logistics centers can no longer meet the needs of the industry. Consequently, the application of automated warehouses with smaller floor space will become more and more common.

[0003] In the warehousing process of an automated warehouse, the stacker crane's loading platform moves to the receiving station, and then the forks of the loading platform lower to a low position to pick up the pallet. During this process, the pallet detection photoelectric sensor on the stacker crane's loading platform activates, detecting that there is a pallet on the receiving station. The stacker crane's forks extend to a low position to pick up the goods. During the picking process, if the pallet is not positioned correctly or the load-bearing beam at the bottom of the pallet is deformed or damaged, the load-bearing beam at the bottom of the pallet will collide with the stacker crane's loading platform fork support during the fork retraction process, causing the pallet to tip over and the goods to fall. Similarly, the same phenomenon exists when the stacker crane picks up and removes goods from the automated warehouse racks. When the forks extend to a low position and retract to a high position to pick up goods, if the pallet is not positioned correctly or the load-bearing beam at the bottom of the pallet is deformed, the pallet may also collide with the fork base, causing the pallet to tip over. The risk is greater in automated warehouse racks, where the storage positions are generally higher. Therefore, we propose a pallet tipping detection device for stacker cranes. Utility Model Content

[0004] To address the shortcomings of existing pallet tipping detection devices for stacker cranes, this invention provides a pallet tipping detection device for stacker cranes. The device features a spring-loaded universal switch installed inside the base of the stacker crane's loading platform. When the forks lift the pallet, and the pallet deforms, the deformed pallet contacts the spring-loaded universal switch. Once the spring-loaded universal switch detects damage to the pallet, it can promptly detect the problematic pallet, thus solving the problem of tipping during rack stacking and addressing the issues raised in the background section.

[0005] This utility model provides the following technical solution: a pallet tipping detection device for a stacker crane, including a stacker crane loading platform base, with a stacker crane loading platform body fixed on both sides of the stacker crane loading platform base, wherein the front and rear ends of the stacker crane loading platform base are provided with sliding grooves, and side plates are provided inside the sliding grooves, and a fork is installed on the upper part of the stacker crane loading platform base, wherein a pallet is placed on the upper part of the fork, and a spring universal switch for detecting the pallet is installed inside the stacker crane loading platform base.

[0006] Preferably, an adjusting sleeve is installed at the bottom of the stacker crane loading platform base, and the spring universal switch is installed inside the adjusting sleeve.

[0007] Preferably, the adjusting sleeve includes a horizontal plate and a lead screw. The lead screw is installed at the lower end of the stacker crane's loading platform base. The horizontal plate and the lead screw are threaded together. Mounting sleeves are installed on both sides of the horizontal plate. The spring universal switch is sleeved and installed inside the mounting sleeve. A gear is fixed to the outside of the lead screw, and a chain is sleeved and installed on the outside of the gear.

[0008] Preferably, the stacker crane loading platform body is equipped with rollers on its exterior, the stacker crane loading platform body is mounted on a lifting rail, the rollers are attached to the lifting rail, and a ground walking track is provided at the bottom end of the lifting rail.

[0009] Preferably, a limit post is fixed to the upper end of the side plate, and a straightening plate for straightening the goods is installed on the inner side of the limit post. The straightening plate is installed on both sides of the stacker crane loading platform base.

[0010] Preferably, the pallet is placed on top of the forks, with goods placed on the top of the pallet.

[0011] Preferably, the stacker crane's loading platform base is equipped with a detection photoelectric switch and an inbound barcode reader, and the spring universal switch is located inside the forks.

[0012] Compared with existing pallet tipping detection devices for stacker cranes, this utility model has the following advantages:

[0013] 1. This pallet tipping detection device for stacker cranes, using spring-loaded universal switches located near the base of the stacker crane's loading platform, can effectively detect abnormal, deformed, or damaged pallets during the stacker crane's loading and unloading operations. It can also detect pallet position shifts. This significantly reduces the risk of pallets tipping over during the loading process due to pallet deformation, damage, or positional shifts, greatly minimizing cargo damage.

[0014] 2. The pallet tipping detection device for this stacker crane is installed inside the adjusting sleeve via a spring universal switch. Rotating one set of lead screws, with the assistance of gears and chains, drives two sets of lead screws to rotate synchronously. This allows the height of the mounting sleeve to be adjusted, ensuring that the spring universal switches are synchronously adjusted inside the stacker crane's loading platform base. This improves the convenience and synchronicity of positioning and adjusting the four sets of spring universal switches. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of the present utility model;

[0016] Figure 2This is a schematic diagram of the main body structure of this utility model from a bottom view;

[0017] Figure 3 This is a front view structural diagram of the present invention;

[0018] Figure 4 This is a partially enlarged structural diagram of the adjusting sleeve of this utility model.

[0019] In the diagram: 1. Stacker crane loading platform base; 2. Stacker crane loading platform body; 3. Roller; 4. Side plate; 5. Limiting post; 6. Straightening plate; 7. Spring universal switch; 8. Fork; 9. Pallet; 10. Adjusting sleeve; 101. Horizontal plate; 102. Lead screw; 103. Mounting sleeve; 104. Gear; 105. Chain. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 A pallet tipping detection device for a stacker crane includes a stacker crane loading platform base 1, with a stacker crane loading platform body 2 fixed to both sides of the base 1. The inner side of the loading platform body 2 is fitted with a lifting rail, which allows for height adjustment of the base 1 and the loading platform body 2, ensuring equipment height control. The base 1 has sliding grooves at its front and rear ends, with side plates 4 inside the grooves. When a spring universal switch 7 detects deformation of the pallet 9 leading to tipping, it controls the side plates 4 to move inside the base 1. The side plates 4 then move a straightening plate 6 inwards, thus straightening the pallet. To prevent tipping, a fork 8 is installed on the upper part of the stacker crane's loading platform base 1. A pallet 9 is placed on top of the fork 8. The fork 8 lifts the pallet 9 into a semi-circle. A spring universal switch 7 is installed inside the stacker crane's loading platform base 1 to detect the pallet 9. The spring universal switch 7 is installed inside the stacker crane's loading platform base 1 and is located inside the fork 8. When the pallet 9 deforms, the spring universal switch 7 contacts the deformed pallet 9, which can detect the problem with the pallet 9 and control the equipment to stop moving. At the same time, the staff can inspect the problematic pallet 9 to improve the safety of the pallet 9 during cargo handling and inspection.

[0022] Please see Figure 4 An adjusting sleeve 10 is installed at the bottom of the stacker crane loading platform base 1, and a spring universal switch 7 is installed inside the adjusting sleeve 10. By installing the adjusting sleeve 10 at the bottom of the stacker crane loading platform base 1, the height of the spring universal switch 7 is adjusted by the adjusting sleeve 10, so as to improve the convenience of adjusting and disassembling the position of the spring universal switch 7.

[0023] Please see Figure 4 The adjusting sleeve 10 includes a horizontal plate 101 and a lead screw 102. The lead screw 102 is installed at the lower end of the stacker crane loading platform base 1. The horizontal plate 101 and the lead screw 102 are threaded together. Mounting sleeves 103 are installed on both sides of the horizontal plate 101. A spring universal switch 7 is sleeved and installed inside the mounting sleeve 103. A gear 104 is fixed to the outside of the lead screw 102. A chain 105 is sleeved and installed on the outside of the gear 104. By rotating one set of lead screws 102, the other set of gears 104 is driven to rotate synchronously through the transmission action of the gears 104 and the chain 105. At the same time, after the gears 104 drive the lead screws 102 to rotate synchronously, the synchronicity of the height adjustment of the horizontal plate 101 can be ensured. The spring universal switch 7 is installed inside the mounting sleeve 103, that is, the position of the spring universal switch 7 inside the stacker crane loading platform base 1 can be adjusted. Depending on the different shelves, the spring universal switch 7 can be driven to accurately monitor and process the position of the pallet 9.

[0024] Please see Figure 1 The main body 2 of the stacker crane's loading platform is equipped with rollers 3 on its exterior. The main body 2 of the stacker crane's loading platform is mounted on a lifting rail, with the rollers 3 fitting against the lifting rail. A ground walking rail is provided at the bottom of the lifting rail. By mounting the main body 2 of the stacker crane's loading platform on the lifting rail, the height of the stacker crane's loading platform base 1 can be adjusted. The height of the main body 2 of the stacker crane's loading platform can also be adjusted using a lifting device. The rollers 3 fitting against the lifting rail ensure the stability of the stacker crane's loading platform base 1 when it moves up and down. At the same time, the ground walking rail can move the entire position of the lifting rail forward and backward.

[0025] Please see Figure 1 The upper end of the side plate 4 is fixed with a limit post 5. A straightening plate 6 for straightening the goods is installed on the inner side of the limit post 5. The straightening plate 6 is installed on both sides of the stacker crane loading platform base 1. By installing the side plate 4 on the side of the stacker crane loading platform base 1, when the detection device detects that the position of the pallet 9 is damaged, the position of the side plate 4 is adjusted by using a screw. The side plate 4 pushes the limit post 5 to move inward, that is, the straightening plate 6 is attached to the side of the pallet 9. At the same time, the straightening plate 6 restricts the goods placed on the pallet 9 and straightens the goods to improve the stability of the goods when positioning.

[0026] Please see Figure 3The pallet 9 is placed on top of the fork 8, with goods placed on top of the pallet 9. The fork 8 controls the front and back position of the pallet 9 to ensure that the pallet 9 can be lifted and transported, while controlling the goods to be placed on top of the pallet 9. The pallet 9 can be used for stacking.

[0027] Please see Figure 1 The stacker crane's loading platform base 1 is equipped with a detection photoelectric switch and an inbound barcode reader. The spring universal switch 7 is located inside the fork 8. The detection photoelectric switch and inbound barcode reader installed inside the stacker crane's loading platform base 1 ensure that the equipment is confirmed to be in the warehouse, while the detection photoelectric switch performs timely detection and processing of the handling status.

[0028] Example 1: Pallet 9 travels along the inbound conveyor line to the inbound platform to wait. The system issues an inbound command to the stacker crane. After receiving the inbound command, the stacker crane travels to the inbound platform and positions itself. After positioning, the stacker crane's loading platform base 1 descends vertically to the inbound platform. Then, the forks 8 pick up pallet 9. During the fork retraction process, if the crossbeam or reinforcing rib of the stacker crane's loading platform base 1 is cracked or deformed, it will impact the spring universal switch 7. The spring universal switch 7 is triggered and sends an alarm signal to the stacker crane, stopping its operation until the equipment operator inspects the site, troubleshoots, and restores normal operation. If pallet 9 is normal and undamaged, the stacker crane directly picks up pallet 9 from the inbound platform and places it onto the stacker crane's loading platform base 1. Then, it travels to the corresponding fork 8 position to place pallet 9 for storage, completing the inbound operation.

[0029] Example 2: During outbound processing, the stacker crane receives the outbound command, moves to the corresponding pallet 9 storage position, raises the forks 8 to the picking position and extends them. After the forks 8 are fully extended, they lift the pallet 9 and then retract them to place the pallet 9 onto the stacker crane's loading platform base 1. If the crossbeam or reinforcing rib at the bottom of the pallet is cracked or deformed, it will impact the spring universal switch. The spring universal switch is triggered and sends an alarm signal to the stacker crane, stopping the stacker crane until the equipment operator inspects the site, troubleshoots the problem, and restores the equipment to normal operation.

[0030] Example 3: During the process of the fork 8 picking up pallet 9 from the rack storage location, the pallet 9 may slightly shift left and right due to frequent previous inbound and outbound operations. The bottom reinforcing ribs and crossbeams of the shifted pallet 9 may collide with the stacker crane's loading platform base 1 and the stacker crane's loading platform body 2. Upon impact with the stacker crane's loading platform base 1, it will simultaneously hit the spring universal switch 7, triggering a pallet picking anomaly alarm on the stacker crane. After on-site inspection and troubleshooting, the equipment can be reset and restarted. If the pallet 9 is normal and undamaged, or if its position on the automated warehouse rack has not shifted, the forks of the stacker crane's loading platform base 1 will normally pick up the pallet from the rack location, move it to the outbound platform, and then place the pallet forks onto the outbound conveyor line for outbound processing, completing the outbound operation.

[0031] 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 pallet tipping detection device for a stacker crane, comprising a stacker crane loading platform base (1), wherein a stacker crane loading platform body (2) is fixed on both sides of the stacker crane loading platform base (1), characterized in that: The stacker crane loading platform base (1) has a sliding groove at the front and rear ends, and a side plate (4) is provided inside the sliding groove. A fork (8) is installed on the upper part of the stacker crane loading platform base (1), and a pallet (9) is placed on the upper part of the fork (8). A spring universal switch (7) for detecting the pallet (9) is installed inside the stacker crane loading platform base (1).

2. A pallet tipper detection device for a palletiser as claimed in claim 1, characterised in that: An adjustment sleeve (10) is installed at the bottom of the stacker crane loading platform base (1), and the spring universal switch (7) is installed inside the adjustment sleeve (10).

3. A pallet tipper detection device for a palletiser as claimed in claim 2, characterised in that: The adjusting sleeve (10) includes a horizontal plate (101) and a lead screw (102). The lead screw (102) is installed at the lower end of the stacker crane loading platform base (1). The horizontal plate (101) and the lead screw (102) are threaded together. Mounting sleeves (103) are installed on both sides of the horizontal plate (101). The spring universal switch (7) is sleeved and installed inside the mounting sleeve (103). A gear (104) is fixed to the outside of the lead screw (102). A chain (105) is sleeved and installed on the outside of the gear (104).

4. The pallet tipping detection device for a stacker crane according to claim 1, characterized in that: The stacker crane loading platform body (2) is equipped with rollers (3) on its exterior. The stacker crane loading platform body (2) is installed on the lifting rail. The rollers (3) are attached to the lifting rail, and the bottom end of the lifting rail is provided with a ground walking rail.

5. A pallet tipper detection device for a palletiser as claimed in claim 1, characterised in that: The upper end of the side plate (4) is fixed with a limiting post (5), and a straightening plate (6) for straightening the goods is installed on the inner side of the limiting post (5). The straightening plate (6) is installed on both sides of the stacker crane loading platform base (1).

6. A pallet tipper detection device for a palletiser as claimed in claim 1, characterised in that: The pallet (9) is placed on top of the forks (8), with goods placed on the top of the pallet (9).

7. A pallet tipper detection device for a palletiser as claimed in claim 1, characterised in that: The stacker crane loading platform base (1) is equipped with a detection photoelectric switch and an inbound code reader, and the spring universal switch (7) is located inside the fork (8).

Images