Ground guide structure of AGV (Automatic Guided Vehicle)

Abstract

The utility model is suitable for the AGV dolly field, and provides an AGV dolly ground guiding structure comprising a magnetic stripe, a first landmark paint protection layer, an anti-crack joint cloth tape and a second landmark paint protection layer which are arranged from bottom to top, the magnetic stripe is laid on the ground, the first landmark paint protection layer covers the magnetic stripe, and the second landmark paint protection layer covers the anti-crack joint cloth tape. The width of the second landmark paint protection layer is larger than that of the anti-crack joint cloth belt, and the first landmark paint protection layer, the anti-crack joint cloth belt and the second landmark paint protection layer form a convex slope on the magnetic strip. The anti-crack joint cloth tape comprises a glass fiber layer, a coating material and a reinforcing layer, wherein the reinforcing layer is a non-woven fabric layer. And the first landmark paint protection layer and the second landmark paint protection layer are normal-temperature landmark paint. According to the utility model, the problems that the magnetic stripe of the AGV is easy to wear, the magnetic stripe protective layer is easy to damage, and the magnetic stripe is easy to expose due to glue failure are solved.

Description

Technical Field

[0001] The utility model belongs to the field of AGV trolleys, and in particular relates to a ground guiding structure of an AGV trolley. Background Art

[0002] With the development of science and technology, the manufacturing industry is gradually shifting towards intelligence, and intelligent manufacturing is bound to be an emerging production model in the future. The Automatic Guided Vehicle (AGV) used for material transportation will be used in large quantities. As part of the intelligent manufacturing system, AGV can improve production efficiency and facilitate the realization of informatization and intelligence. AGV can improve the level of informatization of enterprise production, replace part of the manpower, improve production efficiency, increase corporate profits, and even facilitate the realization of intelligent manufacturing in the future. In some scenarios, AGVs use magnetic strips as a way of navigation and positioning. Magnetic strip navigation is one of the many navigation methods of AGVs.

[0003] The working principle of magnetic stripe navigation is to lay a preset magnetic track (magnetic stripe or magnetic nail) on the ground of the AGV trolley's driving path. The AGV trolley is equipped with a magnetic induction sensor at the bottom, which can sense and identify the magnetic pole changes of the ground magnetic stripe in real time, so as to achieve precise control of the trolley's direction and position. The advantages of this navigation method are simple implementation and low cost, especially suitable for occasions where the path is relatively fixed and the environmental changes are small.

[0004] When in use, the magnetic stripe is susceptible to the following damages: 1. Physical damage: Due to long-term rolling and crushing by the AGV tires, especially at turns or frequently passed sections of the road, the magnetic stripe may be worn, broken or deformed due to repeated force. 2. Environmental factors: The magnetic stripe is exposed to the ground and is easily contaminated by moisture, dust, grease, etc., which affects its adhesion and may also cause weakening of magnetism. 3. External damage: Handling tools, forklifts or other heavy machinery may accidentally damage the magnetic stripe during operation. 4. Human error: During maintenance, cleaning or other operations, if the magnetic stripe is accidentally scratched, it will also be damaged.

[0005] There are corresponding solutions on the market to the problem of fragile magnetic strips, such as using a protective layer with strong wear resistance and crush resistance to extend the service life of the magnetic strips and maintain the stable operation of the AGV system.

[0006] The AGV cart magnetic stripe protection layer mainly refers to a protective measure used to protect the magnetic stripe from wear, corrosion, physical impact, etc., to ensure the stability of the magnetic stripe navigation function. Magnetic stripes are usually made of strong magnetic materials. When directly exposed to the ground, they may be crushed by handling equipment such as forklifts and pallet trucks, as well as eroded by environmental factors such as dust and chemicals, which may affect the navigation performance and service life of the magnetic stripe. Therefore, in actual applications, the magnetic stripe is usually installed in a protective shell with a certain strength and wear resistance, or after laying, it is covered with a high-strength, pressure-resistant and wear-resistant protective layer, such as special resin materials or high-strength floor glue, to ensure the long-term and stable operation of the magnetic stripe.

[0007] However, the magnetic stripe protective layer also has certain limitations. If the material of the magnetic stripe protective layer is improperly selected or the construction quality is not high, once the magnetic stripe protective layer has problems (such as damage, peeling or aging failure), it will directly affect the performance of the magnetic stripe, resulting in a decrease in the navigation accuracy of the AGV or even failure. If the AGV driving path needs to be replanned or the route needs to be adjusted, the existence of the magnetic stripe protective layer may increase the cost and technical difficulty of changing the path. The magnetic stripe protective layer also has the problem of space occupation and appearance influence: in some occasions where the flatness and aesthetics of the ground are required to be high, the magnetic stripe protective layer may increase the thickness of the ground, affecting the overall appearance and user experience of the ground. In addition, the magnetic stripe protective layer is usually glued to the ground. As the use time increases, the glue layer is easy to open and the magnetic stripe is exposed. Furthermore, there is a gap between the magnetic stripe and the magnetic stripe protective layer. After a long period of rolling, the magnetic stripe protective layer is easy to collapse, directly damaging the magnetic stripe.

[0008] In order to solve the above technical problems, the utility model designs a ground guiding structure of an AGV trolley. Utility Model Content

[0009] The utility model provides a ground guide structure for an AGV trolley, aiming to solve the problem that the magnetic strip of the AGV trolley is easy to wear, and the protective layer of the magnetic strip is easy to be damaged and the glue is easy to be opened, resulting in the exposure of the magnetic strip.

[0010] A ground guide structure for an AGV trolley, characterized in that it includes a magnetic stripe, a first landmark paint protective layer, an anti-crack seam cloth tape and a second landmark paint protective layer arranged from bottom to top, the magnetic stripe is laid on the ground, the first landmark paint protective layer covers the magnetic stripe, the width of the second landmark paint protective layer is greater than the width of the anti-crack seam cloth tape, and the first landmark paint protective layer, the anti-crack seam cloth tape and the second landmark paint protective layer form a convex slope on the magnetic stripe.

[0011] Based on the above technical solution, the anti-cracking seam fabric tape includes a glass fiber layer, a coating material and a reinforcement layer, and the reinforcement layer is a non-woven fabric layer.

[0012] Based on the above technical solution, the first landmark paint protective layer and the second landmark paint protective layer are normal temperature landmark paints.

[0013] Beneficial Effects

[0014] Compared with the prior art, the beneficial effects of the utility model are: on the one hand, the structure does not need to be embedded or grooved, and an integrated structure is used to realize the ground guidance of the AGV trolley. The path adjustment is relatively flexible, and it has strong adaptability to complex paths or scenes that require frequent path changes, saving the cost of line change and effectively improving efficiency. On the one hand, the anti-crack seam fabric tape plays the role of a "skeleton" and enhances the stability of the structure. The surface of the non-woven fabric layer is rough, making it difficult for the landmark paint to delaminate and the bonding is more firm. On the other hand, the structure is easy to use, and stones and dust are not easy to contact the magnetic strips, which makes the magnetic strips have a long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only one embodiment of the utility model. For ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0016] Figure 1 : A schematic diagram of the structure of the utility model;

[0017] Figure 2 : Schematic diagram of the structure of the existing magnetic stripe protection layer and the magnetic stripe;

[0018] In the accompanying drawings, there are magnetic stripe 1, first marking paint protective layer 2, anti-cracking seam cloth tape 3, second marking paint protective layer 4, ground 5, magnetic stripe protective layer 6, and adhesive layer 7. DETAILED DESCRIPTION

[0019] The utility model is further described below with reference to the accompanying drawings and examples:

[0020] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0023] See also Figure 1 The utility model provides a technical solution: an AGV trolley ground guide structure, characterized in that it includes a magnetic stripe 1, a first landmark paint protective layer 2, an anti-cracking seam cloth tape 3 and a second landmark paint protective layer 4 arranged from bottom to top, the magnetic stripe 1 is laid on the ground 5, the first landmark paint protective layer 2 covers the magnetic stripe 1, the width of the second landmark paint protective layer 4 is greater than the width of the anti-cracking seam cloth tape 3, and the first landmark paint protective layer 2, the anti-cracking seam cloth tape 3 and the second landmark paint protective layer 4 form a convex slope on the magnetic stripe 1.

[0024] The anti-cracking seam fabric tape 3 comprises a glass fiber layer, a coating material and a reinforcement layer, wherein the reinforcement layer is a non-woven fabric layer.

[0025] like Figure 2 As shown, the existing magnetic stripe protection layer 6 protects the magnetic stripe 1. The magnetic stripe protection layer 6 is directly pasted on the ground 5, and the glue layer 7 adheres the ground 5 and the magnetic stripe protection layer 6. The glue layer 7 will debond as the use time increases, so that stones, dust and other debris enter the magnetic stripe protection layer 6, and there is a gap between the magnetic stripe 1 and the magnetic stripe protection layer 6. If the magnetic stripe protection layer 6 is damaged, the formed magnetic stripe protection layer 6 collapses.

[0026] When in use, first clean the ground 5 where the magnetic stripe 1 is laid, such as loose soil, oil, and moisture. After the magnetic stripe 1 is laid, tamp it with a rubber hammer. Use an ink fountain to pop out a straight line symmetrically on both sides of the magnetic stripe 1 to stick the masking tape. The distance between the inner edges of the masking tape is greater than the width of the anti-cracking seam tape 3. Use a roller brush or a brush to evenly apply landmark paint on the ground between the magnetic stripe 1 and the masking tape to form a first landmark paint protective layer 2. Then, stick the anti-cracking seam tape 3 in the center on the first landmark paint protective layer 2 in the middle of the masking tape on both sides. The anti-cracking seam tape 3 A gap of 3 to 5 mm is left between the masking tape on both sides, so that the anti-cracking seam tape 3 can be fully adhered to the first landmark paint protective layer 2, and then the width between the masking tape on both sides is fully painted on the second landmark paint protective layer 4 formed by the second layer of landmark paint. The anti-cracking seam tape 3 is fully combined with the ground 5 and the magnetic stripe 1. The two layers of landmark paint and the anti-cracking seam tape 3 perfectly form a protective layer, which is wear-resistant, waterproof, and beautiful, and delays the height difference between the thickness of the magnetic stripe and the ground, thereby forming a gentle slope, which greatly improves the service life of the magnetic stripe 1.

[0027] The anti-crack seam tape 3 has a structural strengthening effect. By adding the anti-crack seam tape 3, the tensile strength of the local structural layer of the road surface can be improved, playing a role similar to "tendons" and "skeletons" to prevent structural cracks. The anti-crack seam tape 3 is usually made of a variety of composite materials, and its basic material is mostly glass fiber. The specific composition is as follows: Glass fiber yarn or alkali-free / medium alkali glass fiber: The core part of the anti-crack seam cloth is a mesh cloth woven from glass fiber. This material has high tensile strength and alkali resistance and can effectively inhibit the expansion of cracks. Coating material: On the basis of the glass fiber mesh cloth, one or two layers of acrylic copolymers or other high-performance polymer emulsions with good alkali resistance will be coated. These coatings can increase the flexibility, weather resistance and good adhesion of the seam cloth to mortar or concrete. Reinforcement layer: In some cases, especially in the anti-crack seam tape in road construction, a high-strength polyester layer, a high-elastic polyester layer or a non-woven fabric layer, as well as tear-resistant imported non-woven fabrics, flexible polyethylene layers, etc., are also added. These layers give the product stronger high temperature resistance, tear resistance and waterproof properties.

[0028] The reinforcing layer is a non-woven fabric layer with a rough surface, which makes the landmark paint less likely to delaminate and makes the bonding stronger.

[0029] When selecting landmark paint, the factory workshop mainly considers the following factors: wear resistance, chemical corrosion resistance, heavy load resistance, temperature change resistance, and whether it needs to have the function of safety marking and indication. Based on these requirements, the first landmark paint protective layer 2 and the second landmark paint protective layer 4 are normal temperature landmark paint. Hot melt paint will cause damage to the magnetic stripe.

[0030] Normal temperature landmark paint generally has the following characteristics: Quick drying: It can dry and solidify quickly at room temperature and can be put into use within a short time after construction. Wear resistance and compression resistance: Because it needs to withstand the rolling friction of vehicles, normal temperature landmark paint usually has good wear resistance and compression resistance. Strong adhesion: It is firmly bonded to the ground and not easy to fall off, ensuring the long-term effectiveness of the marking.

[0031] Alternatively, ground repair mortar can be used instead of landmark paint. When the first landmark paint protective layer 2 and the second landmark paint protective layer 4 are protective layers formed by ground repair mortar, the ground repair mortar has excellent antifreeze properties, can maintain stable performance in severe cold environments, will not fail or be damaged due to freezing, and effectively solves the problem of ground cracks and damage caused by temperature changes. It can achieve rapid repairs and harden quickly. It can usually reach sufficient strength within 24 hours after application, and can withstand the pressure of pedestrians and vehicles, greatly reducing the downtime required for road repair. Ground repair mortar often has self-leveling properties, can automatically fill in damaged parts, simplify the construction process, and do not require complex machinery or tools, thereby improving construction efficiency and reducing construction costs. It also has extremely high adhesion and can be firmly attached to various substrates such as old concrete and stone, ensuring that the repaired ground structure is strong and durable and not easy to crack or fall off again.

[0032] The present invention is described above by way of examples, but the present invention is not limited to the above specific embodiments, and any changes or modifications based on the present invention belong to the scope of protection required by the present invention.

Claims

1. An AGV ground guide structure, characterized in that: The invention comprises a magnetic stripe (1), a first landscaping paint protection layer (2), an anti-cracking seam cloth tape (3) and a second landscaping paint protection layer (4) arranged from bottom to top, wherein the magnetic stripe (1) is laid on the ground (5), the first landscaping paint protection layer (2) covers the magnetic stripe (1), the width of the second landscaping paint protection layer (4) is greater than the width of the anti-cracking seam cloth tape (3), and the first landscaping paint protection layer (2), the anti-cracking seam cloth tape (3) and the second landscaping paint protection layer (4) form a convex slope on the magnetic stripe (1).

2. The AGV ground guide structure according to claim 1, characterized in that: The anti-cracking seam fabric tape (3) comprises a glass fiber layer, a coating material and a reinforcement layer, wherein the reinforcement layer is a non-woven fabric layer.

3. The AGV ground guide structure according to claim 1, characterized in that: The first landscaping paint protective layer (2) and the second landscaping paint protective layer (4) are room temperature landscaping paints.

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