Anti-collision pre-trigger mechanism of an automated stacker

Abstract

This utility model discloses an anti-collision pre-trigger mechanism for an automated stacker crane, including a loading platform. The loading platform comprises a square platform and columns located at the four corners of the platform. A crossbar connecting adjacent columns is located on the top of each column. The platform, columns, and crossbars are connected to form a cuboid frame. The two ends of the long side of the cuboid form two opposing first planes. Mirror reflection sensors are installed on the first planes, each including a photoelectric emitter and a reflecting mirror respectively mounted on one of the two columns. Outwardly extending brackets are located at the eight vertices of the cuboid, and guide wheels are mounted on the brackets. Pull ropes encircling the four guide wheels are arranged on the first planes, and pull rope switches are installed on the pull ropes. The pull ropes and pull rope switches are connected to form a closed loop. This utility model has a simple structure, is convenient and flexible to use, and can issue early warnings for collisions from multiple directions, solving the problem of the lack of safety detection for collisions on the stacker crane's loading platform.

Description

Technical Field

[0001] This utility model relates to the field of stacker crane technology, and in particular to an anti-collision pre-trigger mechanism for an automated stacker crane. Background Technology

[0002] The widespread use of automated storage and retrieval systems (AS / RS) has brought convenience to the polyester fiber industry. The use of AS / RS in conjunction with stacker cranes not only significantly reduces labor costs but also elevates overall operational efficiency to a new level. However, there is a possibility that yarn carts loaded in AS / RS may slip out, and other obstacles may also obstruct the operation of the stacker crane. The stacker crane's loading platform has a protruding frame, and each time the stacker crane retrieves or loads a cart, the loading platform needs to move back and forth and up and down. Objects within the loading platform's trajectory can be impacted, causing malfunctions. When a yarn cart slips out of the AS / RS storage location, the stacker crane's loading platform frame may collide with the slipped-out cart during operation, leading to equipment damage. Utility Model Content

[0003] To address the aforementioned technical problems, the purpose of this utility model is to propose an anti-collision pre-trigger mechanism for automated stacker cranes, thereby improving safety protection and solving the problem of equipment damage.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] An anti-collision pre-trigger mechanism for an automated stacker crane includes a loading platform. The loading platform includes a square platform and columns disposed at the four corners of the platform. The top of each column is provided with a crossbar connecting adjacent columns. The platform, columns, and crossbars are connected to form a cuboid frame. The two ends of the long side of the cuboid form two opposing first planes. Specular reflection sensors are disposed on the first planes. Each specular reflection sensor includes a photoelectric emitter and a reflective lens respectively disposed on the two columns. Outwardly extending brackets are disposed at the eight vertices of the cuboid. Guide wheels are disposed on the brackets. Pull ropes are disposed on the first planes surrounding the four guide wheels. Pull rope switches are disposed on the pull ropes. The pull ropes and pull rope switches are connected to form a closed loop.

[0006] Preferably, the pull-cord switch includes a reset switch, a pull-cord interface, and a signal line interface. The pull cord is connected to two pull-cord interfaces located on both sides of the reset switch, and the signal line interface is connected to the stacker crane and used to transmit an emergency stop signal.

[0007] Preferably, the photoelectric emitter and the reflective lens are located close to the platform.

[0008] Preferably, the monitoring range of the mirror reflection sensor is within the area 50mm outside the loading platform, 1000mm between the photoelectric transmitter and the reflective lens, and 50mm vertically.

[0009] Preferably, the pull rope is a steel wire pull rope.

[0010] Preferably, the surface of the guide wheel is provided with a groove, and the pull rope is embedded in the groove.

[0011] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0012] The anti-collision pre-trigger mechanism of this utility model of automated stacker crane includes a loading platform, which comprises a square platform and columns set at the four corners of the platform. The top of the columns is provided with a crossbar connecting adjacent columns. The platform, columns and crossbars are connected to form a cuboid frame. The two ends of the long side of the cuboid form two opposing first planes. Mirror reflection sensors are set on the first planes. The mirror reflection sensors include photoelectric emitters and reflective lenses respectively set on the two columns. The eight vertices of the cuboid are respectively provided with outwardly extending brackets. Guide wheels are set on the brackets. Pull ropes are set on the first planes and surround the four guide wheels. Pull rope switches are set on the pull ropes. The pull ropes and pull rope switches are connected to form a closed loop. The structure is simple, convenient and flexible to use, and can issue early warnings for collisions in multiple directions, solving the problem of the lack of safety detection of objects impacting the loading platform of the stacker crane. Attached Figure Description

[0013] The technical solution of this utility model will be further described below with reference to the accompanying drawings:

[0014] Appendix Figure 1 This is a schematic diagram of the anti-collision pre-trigger mechanism of the automated stacker crane of this utility model;

[0015] Appendix Figure 2 This is a schematic diagram of the pull rope switch of the anti-collision pre-trigger mechanism of the automated stacker crane of this utility model;

[0016] Appendix Figure 3 This is a collision diagram of the anti-collision pre-trigger mechanism of the automated stacker crane of this utility model.

[0017] The components include: 1. Cargo platform; 11. Platform; 12. Column; 13. Crossbar; 21. Photoelectric transmitter; 22. Reflector; 3. Bracket; 4. Guide wheel; 5. Pull rope; 6. Pull rope switch; 61. Reset switch; 62. Pull rope interface; 63. Signal line interface. Detailed Implementation

[0018] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0019] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly on the other component or may have an intervening component present. When a component is referred to as "connected to" another component, it can be directly connected to the other component or may have an intervening component present.

[0020] Furthermore, it should be noted that the directional terms such as left, right, up, and down used in the embodiments of this utility model are only relative concepts or references to the normal use of the product, and should not be considered restrictive. The implementation of this utility model will be described in detail below with reference to specific embodiments.

[0021] As attached Figure 1 The diagram shows an anti-collision pre-trigger mechanism for an automated stacker crane according to this invention. It includes a loading platform 1, which comprises a square platform 11 and columns 12 connected to the four corners of the platform 11. The top of each column 12 has a crossbar 13 connecting adjacent columns 12. The platform 11, columns 12, and crossbar 13 are connected to form a cuboid frame. The two ends of the long side of the cuboid form two opposing first planes. Specular reflection sensors are installed on these first planes. Each specular reflection sensor includes a photoelectric emitter 21 and a reflective lens 22, respectively mounted on the two columns 12. The photoelectric emitter 21 and reflective lens 22 are close to the platform 11 to detect potentially slipping wire carriages. In this embodiment, the monitoring range of the specular reflection sensor is within a region 50mm outside the loading platform 1, 1000mm between the photoelectric emitter 21 and the reflective lens 22, and 50mm vertically. It detects whether the wire carriage exceeds the safe area in the running trajectory of the loading platform 1, thus preventing collisions at the two ends of the long side of the loading platform 1.

[0022] In this embodiment, the total width of the vertical warehouse aisle is 3200mm, and the stacker crane's loading platform 11 occupies 3000mm of the aisle width. There is a 100mm clearance on both sides. Within the 100mm clearance, a mirror reflection sensor occupies 50mm, leaving 50mm of space. Based on the above data, it can be seen that if the wire cart protrudes 50mm or more from the vertical warehouse, there is a risk of collision. When the stacker crane picks up and puts down the wire cart, the loading platform 1 has two operating directions: vertical and horizontal. The risk of collision is higher when the vertical and horizontal movements are simultaneous.

[0023] At each of the eight vertices of the cuboid formed by the loading platform 1, outwardly extending supports 3 are formed. Guide wheels 4 are mounted on the supports 3. Pull ropes 5 surround the four guide wheels 4 on the first plane. Pull rope switches 6 are mounted on the pull ropes 5, and the pull ropes 5 and pull rope switches 6 are connected to form a closed loop. Grooves are formed on the surface of the guide wheels 4, and the pull ropes 5 are embedded in the grooves to prevent the pull ropes 5 from coming out and causing failure. The guide wheels 4 can withstand pressure buffering at multiple angles. The pull ropes 5 slide relative to the surfaces of the guide wheels 4 to prevent the pull ropes 5 from getting stuck, ensuring the sensitivity of the triggering mechanism, while also preventing wear on the pull ropes 5 and extending their service life. In this embodiment, the pull ropes 5 are steel wire pull ropes. As the pressure-bearing component of this triggering mechanism, the steel wire pull ropes can effectively withstand vertical and horizontal pressure impacts. When directly impacted by an object, the pull rope switches 6 are triggered to ensure the impact resistance of the mechanism.

[0024] As attached Figure 2 As shown, the pull-cord switch 6 includes a reset switch 61, a pull-cord interface 62, and a signal line interface 63. The pull cord 5 is connected to the two pull-cord interfaces 62 located on both sides of the reset switch 61. The signal line interface 63 is connected to the stacker crane and used to transmit an emergency stop signal. The steel wire pull cord drives the pull-cord switch contacts to move. After the contacts move, an alarm is triggered and the switch self-locks, stopping the stacker crane. After the fault is resolved, the pull-cord switch 6 contacts reset. Due to its resettable nature, it can be quickly restored and reused repeatedly.

[0025] As attached Figure 3 As shown, when a protruding object hits the wire rope, the wire rope causes the contact of the pull rope switch 6 to move and lock itself. After the contact moves, the control signal is transferred through the intermediate relay and sent to the stacker crane emergency stop signal, causing the stacker crane to stop urgently and issue an audible and visual alarm. After the operator removes the wire carriage, the automatic stacker crane's anti-collision pre-trigger mechanism is manually released and reset. The operator performs a reset operation on the stacker crane's main screen, and the stacker crane resumes operation.

[0026] This utility model discloses an anti-collision pre-trigger mechanism for an automated stacker crane. It has a simple structure, is easy and flexible to use, and can issue early warnings for collisions in multiple directions. It solves the problem of the lack of safety detection for objects hitting the stacker crane's loading platform, effectively avoids the major risks of equipment damage and the collapse of the vertical warehouse after a collision, avoids damage to the equipment, improves the operating efficiency of the stacker crane, and also avoids increased maintenance costs caused by damage.

[0027] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A pre-impact mechanism for an automated palletizer, comprising: The system includes a loading platform, which comprises a square platform and columns at the four corners of the platform. A crossbar connecting adjacent columns is mounted on the top of each column. The platform, columns, and crossbars are connected to form a cuboid frame. Two opposing first planes are formed at the ends of the long side of the cuboid. Specular reflection sensors are mounted on the first planes, each including a photoelectric emitter and a reflective lens mounted on one of the two columns. Outwardly extending supports are mounted at each of the eight vertices of the cuboid, and guide wheels are mounted on the supports. Pull ropes encircling the four guide wheels are mounted on the first planes, and pull rope switches are mounted on the pull ropes. The pull ropes and pull rope switches are connected to form a closed loop.

2. The anti-collision pre-trigger mechanism of an automated palletizer according to claim 1, wherein: The pull-cord switch includes a reset switch, a pull-cord interface, and a signal line interface. The pull cord is connected to two pull-cord interfaces located on both sides of the reset switch. The signal line interface is connected to the stacker crane and is used to transmit an emergency stop signal.

3. The anti-collision pre-trigger mechanism of an automated palletizer according to claim 1, wherein: The photoelectric emitter and reflector are located near the platform.

4. The pre-crash trigger mechanism for an automated stacker according to claim 1, wherein: The monitoring range of the mirror reflection sensor is within the area 50mm outside the loading platform, 1000mm between the photoelectric transmitter and the reflective lens, and 50mm vertically.

5. The anti-collision pre-trigger mechanism of the automated stacker crane according to claim 1, characterized in that: The pull rope is a steel wire pull rope.

6. The pre-crash trigger mechanism for an automated stacker according to claim 1, wherein: The surface of the guide wheel is provided with a groove, and the pull rope is embedded in the groove.

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