An automatic pouring and curing conveying system and method for excavator counterweights

Abstract

The present invention relates to an automatic pouring and curing conveying system and method for excavator counterweights, including a counterweight pouring and conveying line, a curing buffer area, and a counterweight welding and conveying line connected in sequence. The counterweight pouring and conveying line and the curing buffer area are connected by a second RGV cart for transporting counterweights, and the curing buffer area and the counterweight welding and conveying line are connected by a third RGV cart for transporting counterweights. Moreover, the curing buffer area is an automatic conveying roller path. Along the running direction of the conveying line on the counterweight pouring and conveying line, there are an automatic pouring station and an automatic weighing station in sequence, and there is a sealing welding station on the counterweight welding and conveying line. The present invention realizes the automatic pouring, automatic vibration compaction, automatic weighing, automatic conveying, and automatic curing and buffering of excavator counterweights, reduces the labor intensity of workers, improves the production efficiency, and greatly saves the floor area compared with the traditional counterweight production workshop.

Description

Technical Field

[0001] The present invention relates to the pouring of a counterweight for construction machinery, and particularly to an automatic pouring, curing and conveying system and method for an excavator counterweight. Background Art

[0002] An excavator (referred to as an "excavator" for short) is a heavy construction machinery, usually used for earthwork, mining, road construction and other operations. Due to the particularity of its working environment and working load, the stability and safety of the excavator are very important. In order to ensure that the excavator can move and operate stably during work, counterweights are required. A counterweight refers to installing some heavy objects on the excavator to balance the weight distribution of the excavator, so as to achieve the purpose of stability. Counterweights usually use materials such as steel plates and concrete blocks, and their weights and distribution positions need to be accurately calculated and adjusted. When selecting counterweights, factors such as the model, size, working conditions of the excavator, as well as the magnitude and direction of the working load need to be considered. If the counterweight is inappropriate or adjusted improperly, it may cause problems such as tilting and shaking of the excavator during work, and even affect work efficiency and safety.

[0003] However, the traditional excavator counterweight still uses manual assistance for pouring, manual assistance for vibrating and compacting, and manual assistance for lifting and transporting. The weight of the excavator counterweight after pouring is between 2t and 16t. The counterweight products are large and heavy, resulting in high labor intensity for workers, low automation rate, low production efficiency and per capita output value. In addition, the counterweights are stored in a flat laying manner after curing, occupying a large area, and can no longer meet the rapidly changing market demands.

[0004] Therefore, it is necessary to propose an automatic pouring, curing and conveying system for excavator counterweights to improve the automation degree of the excavator counterweight pouring, curing and conveying system, thereby solving the problems of low production efficiency of excavator counterweights and high labor intensity of workers. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide an automatic pouring, curing and conveying system and method for excavator counterweights, which automatically pours, automatically vibrates and compacts, automatically weighs, automatically conveys, automatically cures and stores, and automatically welds the seals of the excavator counterweights, so as to improve the automation degree of the excavator counterweight pouring, curing and conveying system and solve the problems of low production efficiency of excavator counterweights and high labor intensity of workers.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] An automatic pouring and curing conveying system for an excavator counterweight, comprising a counterweight pouring conveying line, a curing buffer area, and a counterweight welding conveying line connected in sequence. The counterweight pouring conveying line and the curing buffer area are connected by a second RGV cart for transporting the counterweight, and the curing buffer area and the counterweight welding conveying line are connected by a third RGV cart for transporting the counterweight. The curing buffer area is an automatic conveying roller path.

[0008] Among them, an automatic pouring station and an automatic weighing station are sequentially arranged on the counterweight pouring conveying line along the running direction of the conveying line. A sealing welding station is arranged on the counterweight welding conveying line. The automatic pouring station includes an automatic pouring device arranged above the counterweight pouring conveying line, a vibration platform arranged at the bottom of the counterweight pouring conveying line, and a vibration motor connected to the vibration platform. The automatic weighing station includes a weighing device arranged at the bottom of the counterweight pouring conveying line. The sealing welding station includes a welding robot and a handling robot arranged on both sides of the counterweight welding conveying line.

[0009] The curing buffer area has at least two layers of automatic conveying roller paths. Each layer of the automatic conveying roller path has at least two conveying roller paths. The second RGV cart and the third RGV cart are both lifting and traversing RGV carts to realize the connection between the curing buffer area and the counterweight welding conveying line and the counterweight pouring conveying line.

[0010] Furthermore, the curing buffer area has two layers of automatic conveying roller paths, namely a first curing buffer area at the bottom layer and a second curing buffer area at the upper layer. Each layer of the automatic conveying roller path is provided with 10 conveying roller paths.

[0011] Furthermore, it also includes a tray with RFID, a visual recognition device, and a central control system. The tray is placed on the counterweight pouring conveying line to carry the counterweight. The visual recognition device is arranged on the counterweight pouring conveying line and on the side of the automatic pouring station away from the automatic weighing station. The visual recognition device is used to identify the specification of the counterweight and bind the corresponding specification information to the RFID of the tray. The visual recognition device, the counterweight pouring conveying line, the curing buffer area, and the counterweight welding conveying line are all connected to the central control system.

[0012] Furthermore, on the side of the counterweight welding conveying line away from the curing buffer area at the sealing welding station, there are sequentially arranged a topcoat painting loading station and a lifting station. A tray transition conveying line is arranged below the counterweight welding conveying line. One end of the tray transition conveying line is connected to the lifting station, and the other end is connected to the third RGV cart.

[0013] A pallet return conveyor line is provided on one side of the counterweight pouring conveyor line, and a first RGV trolley is provided between one end of the pallet return conveyor line and an end of the counterweight pouring conveyor line away from the curing buffer area, and the other end of the pallet return conveyor line is connected to the first RGV trolley.

[0014] Furthermore, the first RGV trolley is a transverse RGV trolley.

[0015] Furthermore, a primer coating lower hanging station is provided on one end of the counterweight pouring conveyor line close to the first RGV trolley to receive the counterweight shell after primer coating.

[0016] A method for automatic pouring and curing conveying of excavator counterweights, using the above-mentioned automatic pouring and curing conveying system of excavator counterweights, specifically comprises the following steps:

[0017] Step 1. Place the counterweight shell that has been primed into the pallet located at the primer painting lower hanging station, and convey the pallet to the location of the visual recognition device through the counterweight pouring conveyor line. The visual recognition device automatically scans the specification information of the counterweight shell, and binds the relevant specification information with the RFID of the pallet. Continue to convey the pallet to the bottom of the automatic pouring equipment through the counterweight pouring conveyor line to automatically pour steel slag or concrete blocks. After the pouring is completed, the vibration platform automatically vibrates and compacts it to form a counterweight product.

[0018] Step 2. The vibrated and compacted counterweight product is transported from the counterweight pouring conveyor line to the automatic weighing station for weighing, and the second RGV trolley transfers the counterweight product to the solidification buffer area for buffering;

[0019] Step 3. After the curing period of the counterweight product is more than 3 days, according to the order requirements or the scheduling of the central control system, the second RGV trolley will transfer the pallet carrying the counterweight product to the counterweight welding conveyor line, and then transport it to the sealing welding station through the counterweight welding conveyor line. The handling robot will automatically load and assemble, and the welding robot will automatically weld to achieve automatic sealing of the counterweight product;

[0020] Step 4. After the sealing welding of the counterweight product is completed, the pallet carrying the counterweight product is transferred to the topcoat coating line station. With manual assistance, the counterweight product is hung on the self-propelled hoist and the topcoat coating is automatically carried out, completing the entire process of pouring the excavator counterweight;

[0021] Step 5. The emptied pallet flows to the lifting station and is lowered to the pallet transition conveyor line. The third RGV trolley connects the pallet to the pallet return conveyor line and is transferred to the counterweight pouring conveyor line and the primer coating lower hanging station by the first RGV trolley to reload the counterweight shell that has been primed.

[0022] Further, the curing buffer zone has two layers of automatic conveying roller paths, namely the first curing buffer zone located at the bottom layer and the second curing buffer zone located at the upper layer;

[0023] In step 2, when the weight of the counterweight product is greater than 5 tons, it is transported by the second RGV cart to the first curing buffer zone for caching. When the weight of the counterweight product is less than or equal to 5 tons, it is transported by the second RGV cart to the second curing zone for caching.

[0024] The beneficial effects of the present invention are as follows:

[0025] An automatic pouring, curing and conveying system and method for excavator counterweights provided by the present invention realizes automatic pouring, automatic vibration compaction, automatic weighing, automatic conveying and automatic curing and caching of excavator counterweights through a counterweight pouring conveying line, a counterweight welding conveying line, a pallet transition conveying line, a pallet return conveying line, as well as pallets and RGV carts, reduces the labor intensity of workers, improves the equipment utilization rate and production efficiency. At the same time, a double-layer automatic conveying roller path is used as the curing buffer zone, which greatly saves the floor area compared with the traditional counterweight production workshop. Only one person is needed to assist in the operation at the upper line of the counterweight shell and the lower line of the counterweight product respectively during the whole process of the pouring and curing conveying line. Therefore, the automatic pouring, curing and conveying system and method for excavator counterweights only need 2 people to complete, while the traditional excavator counterweight pouring and curing conveying system requires at least 8 people or more. Therefore, compared with the traditional manual pouring and curing process, the number of people in this embodiment is at least reduced by 6. And through automatic pouring and automatic sealing and welding, combined with a double-layer automatic conveying roller path as the curing buffer zone, it can solve the problem of excessive floor area during the curing and caching process while increasing the pouring speed of the counterweight, effectively improving the production efficiency, reducing the labor intensity of the operators and reducing the labor cost.

[0026] Secondly, the counterweight pouring conveying line and the counterweight welding conveying line in the automatic pouring, curing and conveying system for excavator counterweights are respectively provided with a primer coating hanging-down station and a topcoat coating loading station connected to the counterweight primer production line and the counterweight topcoat production line, which can seamlessly connect the counterweight shell and the counterweight product after pouring with the counterweight primer production line and the counterweight topcoat production line respectively, reduce secondary hoisting, and further improve the production efficiency and reduce the labor intensity.

[0027] Other advantages, objectives and features of the present invention will be described to some extent in the subsequent specification, and to some extent, will be obvious to those skilled in the art based on the study of the following text, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be described in detail and preferably below in conjunction with the accompanying drawings, where:

[0029] Figure 1 It is a schematic structural diagram of an automatic pouring and curing conveying system for an excavator counterweight;

[0030] Figure 2 It is a schematic partial structural diagram of an automatic pouring and curing conveying system for an excavator counterweight;

[0031] Figure 3 It is a schematic plan view of an automatic pouring and curing conveying system for an excavator counterweight.

[0032] Reference numerals: counterweight housing 1, first RGV cart 2, visual recognition device 3, automatic pouring station 4, vibration platform 401, vibration motor 402, automatic pouring device 403, automatic weighing station 5, weighing device 501, second RGV cart 6, curing buffer zone 7, first curing buffer zone 701, second curing buffer zone 702, third RGV cart 8, sealing and welding station 9, handling robot 901, welding robot 902, pallet 10, lifting station 11, counterweight pouring and conveying line 12, counterweight welding and conveying line 13, pallet transition conveying line 14, pallet return conveying line 15, counterweight product 16, drive motor 17, chain traversing machine 18. Specific embodiments

[0033] The following illustrates the embodiments of the present invention through specific examples. Those skilled in the art can easily understand the other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through different specific embodiments. The details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the diagrams provided in the following embodiments only illustrate the basic concept of the present invention schematically. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0034] Among them, the accompanying drawings are only for illustrative purposes, showing only schematic diagrams, not physical diagrams, and should not be construed as a limitation to the present invention; for better illustrating the embodiments of the present invention, some components in the accompanying drawings will be omitted, enlarged, or reduced, and do not represent the dimensions of actual products; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted.

[0035] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "back", etc. indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the accompanying drawings. This is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the accompanying drawings are only for illustrative purposes and should not be construed as a limitation of the present invention. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0036] Please refer to Figures 1 to 3 , which is an automatic pouring and curing conveying system for the counterweight of an excavator, including a counterweight pouring conveying line 12, a curing buffer area 7, and a counterweight welding conveying line 13 connected in sequence from right to left. The counterweight pouring conveying line 12 and the curing buffer area 7 are connected by a second RGV cart 6 for transporting the counterweight product 16. The curing buffer area 7 and the counterweight welding conveying line 13 are connected by a third RGV cart 8 for transporting the counterweight product 16, and the curing buffer area 7 is an automatic conveying roller path; on the counterweight pouring conveying line 12, there are an automatic pouring station 4 and an automatic weighing station 5 in sequence from right to left, and there is a sealing welding station 9 on the counterweight welding conveying line 13.

[0037] Specifically, the curing buffer area 7 has at least two layers of automatic conveying roller paths, and each layer of automatic conveying roller path has at least two conveying roller paths. The second RGV cart 6 and the third RGV cart 8 are both lifting and traversing RGV carts to realize the connection between the curing buffer area 7 and the counterweight welding conveying line 13 and the counterweight pouring conveying line 12.

[0038] In this embodiment, the curing buffer area 7 has upper and lower layers of automatic conveying roller paths, namely the first curing buffer area 701 at the bottom layer and the second curing buffer area 702 at the upper layer. Each layer of automatic conveying roller path is provided with 10 conveying roller paths.

[0039] The automatic pouring station 4 includes an automatic pouring device 403 arranged above the counterweight pouring conveying line 12, a vibration platform 401 arranged at the bottom of the counterweight pouring conveying line 12, and a vibration motor 402 connected to the vibration platform 401. The automatic weighing station 5 includes a weighing device 501 arranged at the bottom of the counterweight pouring conveying line 12. The weighing device 501 and the vibration platform 401 both have a jacking function and are arranged at intervals on the counterweight pouring conveying line 12, so as to be jacked up when needed and fall after use, thereby ensuring the normal conveying of the counterweight pouring conveying line 12.

[0040] Preferably, the automatic pouring and curing conveying system for the excavator counterweight further includes a tray 10 with RFID, a vision recognition device 3, and a central control system. The tray 10 is placed on the counterweight pouring conveying line 12 to carry the counterweight housing 1. The vision recognition device 3 is arranged on the counterweight pouring conveying line 12 and on the side of the automatic pouring station 4 away from the automatic weighing station 5. The vision recognition device 3 is used to identify the specifications of the counterweight housing 1 and bind the corresponding specification information to the RFID (radio frequency identification module) of the tray 10. Moreover, the vision recognition device 3, the counterweight pouring conveying line 12, the curing buffer area 7, and the counterweight welding conveying line 13 are all connected to the central control system.

[0041] Preferably, on the left side of the sealing and welding station 9 of the counterweight welding conveying line 13, there are further arranged a topcoat painting online station and a lifting station 11 in sequence, and a tray transition conveying line 14 is arranged below the counterweight welding conveying line 13. One end of the tray transition conveying line 14 is connected to the lifting station 11, and the other end is connected to the third RGV cart 8. On one side of the counterweight pouring conveying line 12, there is a tray return conveying line 15, and a first RGV cart 2 is arranged between one end of the tray return conveying line 15 and the end of the counterweight pouring conveying line 12 away from the curing buffer area 7. Moreover, the other end of the tray return conveying line 15 is connected to the third RGV cart 8.

[0042] In this embodiment, the counterweight housing 1 after primer coating is placed in the tray 10 with the assistance of manual labor and a self-propelled hoist. Under the action of the counterweight perfusion conveying line 12, the tray 10 is conveyed to the position where the visual recognition device 3 is located. The visual recognition device 3 scans and identifies the size specifications of the counterweight housing 1, and binds the specification information of the counterweight housing 1 with the RFID of the tray 10. The tray 10 runs to the automatic perfusion station 4. The automatic perfusion device 403 identifies the RFID of the tray 10 and determines the perfusion volume. After the counterweight housing 1 is perfused, the vibration platform 401 jacks up and vibrates under the action of the vibration motor 402 to vibrate and compact materials such as steel plates and concrete blocks in the counterweight housing 1 to form the counterweight product 16. The tray 10 runs to the automatic weighing station 5, and the weighing device 501 weighs the counterweight product 16, and feeds back the weight of the counterweight product 16 to the central control system to control the second RGV cart 6 to allocate the counterweight product 16 to the corresponding position in the curing buffer area 7 for curing and buffering; The counterweight product 16 after the curing period is transported to the counterweight welding conveying line 13 by the third RGV cart 8. Under the action of the counterweight welding conveying line 13, the tray 10 and the counterweight product 16 are transported to the sealing and welding station 9, and are automatically sealed and welded under the cooperation of the welding robot 902 and the handling robot 901. The sealed counterweight product 16 and the tray 10 continue to move forward to the topcoat painting loading station. The counterweight product 16 is hoisted by the self-propelled hoist to leave the tray 10 at the topcoat painting loading station. The lifting station 11 lowers the tray 10 to the position where it is connected to the tray transition conveying line 14. The tray transition conveying line 14 conveys the tray 10 to the position where it is connected to the second RGV cart 6. The second RGV cart 6 transports the tray 10 to the tray return conveying line 15. The tray 10 is conveyed to one end of the counterweight perfusion conveying line 12 away from the curing buffer area 7 through the tray return conveying line 15, and is transported to the end of the counterweight perfusion conveying line 12 away from the curing buffer area 7 by the first RGV cart 2 to be re-loaded with the counterweight housing 1.

[0043] One end of the counterweight perfusion conveying line 12 close to the first RGV cart 2 is provided with a primer coating hanging-down station to receive the counterweight housing 1 after primer coating. Specifically, above one end of the counterweight perfusion conveying line 12 away from the curing buffer area 7 is the primer hanging-down area of the counterweight housing 1, so as to facilitate the tray 10 to hold the counterweight housing 1.

[0044] Preferably, a chain traversing machine 18 connected to the pallet return conveyor line 15 is provided at the automatic weighing station 5 on the counterweight pouring and conveying line 12. Counterweight products 16 that are unqualified in weight during weighing at the automatic weighing station 5 are diverted to the pallet return conveyor line 15 by the chain traversing machine 18, and the unqualified counterweight products 16 are hoisted to the repair area for repair by a self-propelled hoist until the counterweight weight is qualified. The pallet 10 can then continue to be used subsequently through the pallet return conveyor line 15.

[0045] Specifically, the counterweight pouring and conveying line 12, the counterweight welding and conveying line 13, the pallet transition conveying line 14, and the pallet return conveying line 15 are all conveying roller paths, and drive motors 17 are provided on the conveying roller paths in the curing buffer area 7 and these conveying roller paths to drive the conveying roller paths to convey the pallet 10 and the counterweight products 16 or counterweight housings 1 carried on the pallet 10. The drive motors 17 are all controlled by a central control system to achieve the coordinated operation of the entire system.

[0046] Finally, it should be noted that the key of this application lies in the layout structure, connection relationship and system composition of the excavator counterweight automatic pouring and curing conveying system, rather than the specific structures of the components in the system. Each component in this application, such as the counterweight housing 1, RGV cart, visual recognition device 3, vibration platform 401, vibration motor 402, automatic pouring device 403, weighing device 501, handling robot 901, welding robot 902, pallet 10 with RFID, drive motor 17, chain traversing machine 18, and the conveying roller paths constituting the conveying line and the curing storage area, are all mature products in the prior art. For example, the lifting station 11 is a lifting conveying roller path, and the weighing device 501 is a weighbridge with a jacking function, which is arranged between the conveying roller paths constituting the counterweight pouring and conveying line 12 to avoid interference with the movement of the conveying roller paths. During the actual use process, based on this application, the specific connection methods of each component can be adjusted adaptively to make them coordinate with each other.

[0047] An excavator counterweight automatic pouring and curing conveying method uses the above-mentioned excavator counterweight automatic pouring and curing conveying system, and specifically includes the following steps:

[0048] Step 1. First, place the counterweight housing 1 that has completed primer painting into the pallet 10 at the primer painting lower hanging station. Convey the pallet 10 through the counterweight pouring and conveying line 12 to the position where the visual recognition device 3 is located. Automatically scan the specification information of the counterweight housing 1 through the visual recognition device 3, and bind the relevant specification information with the RFID of the pallet 10. Continue to convey the pallet 10 through the counterweight pouring and conveying line 12 to directly below the automatic pouring equipment to achieve automatic pouring of steel slag or concrete blocks. After the pouring is completed, the vibration platform 401 directly below automatically vibrates and compacts to form the counterweight product 16;

[0049] Step 2. The weighted product 16 after vibration compaction is weighed at the automatic weighing station 5 by the weighted pouring and conveying line 12, and the weighted product 16 is transferred by the second RGV cart 6 to the curing buffer area 7 for buffering. When the weight of the weighted product 16 is greater than 5 tons, it is transferred by the second RGV cart 6 to the first curing buffer area 7017 for buffering. When the weight of the weighted product 16 is less than or equal to 5 tons, it is transferred by the second RGV cart 6 to the second curing area for buffering; it is diverted to the tray return conveying line 15 by the chain traversing machine 18, and the weighted product 16 with unqualified weight is hoisted to the repair area by the overhead hoist for repair until the weight of the weight is qualified. The tray 10 can continue to be used subsequently through the tray return conveying line 15;

[0050] Step 3. After the curing period of the weighted product 16 is greater than or equal to 3 days, according to the order requirements or the dispatching of the central control system, the second RGV cart 6 transfers the tray 10 carrying the weighted product 16 to the weighted welding conveying line 13, and is conveyed to the sealing welding station 9 through the weighted welding conveying line 13. The handling robot 901 is used for automatic feeding and alignment, and the welding robot 902 is used for automatic welding to achieve the automatic sealing of the weighted product 16;

[0051] Step 4. After the weighted sealing welding is completed, the tray 10 carrying the weight is transferred to the topcoat painting online station. With the assistance of manual labor, the weighted product 16 is hung by the overhead hoist and then automatically painted with topcoat, and the entire pouring process of the excavator weight is completed;

[0052] Step 5. The emptied tray 10 is transferred to the lifting station 11, lowered to the tray transition conveying line 14, and the tray 10 is connected to the tray return conveying line 15 by the third RGV cart 8, and is transferred to the position on the weighted pouring conveying line 12 under the primer painting hanging station by the first RGV cart 2 to be refilled with the weighted housing 1 that has completed the primer painting.

[0053] In this embodiment, a double-layer automatic conveying roller path is adopted as the curing buffer area 7 in an automatic pouring, curing and conveying system and method for excavator counterweights. The bottom layer is a heavy-load conveying roller path as the first curing buffer area 7017, and the second layer is a light-load conveying roller path as the second curing buffer area 7027. The automatic pouring, curing and conveying system realizes automatic pouring, automatic vibration compaction, automatic weighing, automatic conveying and automatic curing and buffering of excavator counterweights through a counterweight pouring and conveying line 12, a counterweight welding and conveying line 13, a pallet transition conveying line 14, a pallet return conveying line 15, as well as pallets 10 and RGV trolleys, reduces the labor intensity of workers, improves the equipment utilization rate and production efficiency. At the same time, adopting a double-layer automatic conveying roller path as the curing buffer area 7 greatly saves the floor area compared with the traditional counterweight production workshop. Only one person is required to assist in the operation at the upper line of the counterweight housing 1 and the lower line of the counterweight product 16 respectively during the whole process of the pouring, curing and conveying line. Therefore, only two people are needed to complete the automatic pouring, curing and conveying system and method for excavator counterweights, while at least eight or more people are required for the traditional excavator counterweight pouring and curing conveying system. Therefore, the number of people in this embodiment is at least six less than that of the traditional manual pouring and curing process.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the present technical solution, and they should all be covered by the scope of the claims of the present invention.

Claims

1. An automatic pouring and curing conveying system for excavator counterweights, characterized in that: It includes a counterweight perfusion conveyor line, a curing buffer zone, and a counterweight welding conveyor line connected in sequence. The counterweight perfusion conveyor line and the curing buffer zone are connected by a second RGV cart for transporting counterweights, and the curing buffer zone and the counterweight welding conveyor line are connected by a third RGV cart for transporting counterweights. Moreover, the curing buffer zone is an automatic conveying roller track; Among them, an automatic perfusion station and an automatic weighing station are sequentially arranged on the counterweight perfusion conveyor line along the running direction of the conveyor line. A sealing welding station is arranged on the counterweight welding conveyor line. The automatic perfusion station includes an automatic perfusion device arranged above the counterweight perfusion conveyor line, a vibration platform arranged at the bottom of the counterweight perfusion conveyor line, and a vibration motor connected to the vibration platform. The automatic weighing station includes a weighing device arranged at the bottom of the counterweight perfusion conveyor line. The sealing welding station includes a welding robot and a handling robot arranged on both sides of the counterweight welding conveyor line; The curing buffer zone has at least two layers of automatic conveying roller tracks, and each layer of automatic conveying roller track has at least two conveying roller tracks. Moreover, both the second RGV cart and the third RGV cart are lifting and traversing RGV carts to realize the connection between the curing buffer zone and the counterweight welding conveyor line and the counterweight perfusion conveyor line; The curing buffer zone has two layers of automatic conveying roller tracks, namely a first curing buffer zone located at the bottom layer and a second curing buffer zone located at the upper layer. Each layer of automatic conveying roller track is provided with 10 conveying roller tracks; It further includes a tray with RFID, a visual recognition device, and a central control system. The tray is placed on the counterweight perfusion conveyor line to carry the counterweight. The visual recognition device is arranged on the counterweight perfusion conveyor line and on the side of the automatic perfusion station away from the automatic weighing station. The visual recognition device is used to identify the specification of the counterweight and bind the corresponding specification information to the RFID of the tray. Moreover, the visual recognition device, the counterweight perfusion conveyor line, the curing buffer zone, and the counterweight welding conveyor line are all connected to the central control system; On the side of the counterweight welding conveyor line away from the curing buffer zone in the sealing welding station, a topcoat painting loading station and a lifting station are sequentially arranged. A tray transition conveyor line is arranged below the counterweight welding conveyor line. One end of the tray transition conveyor line is connected to the lifting station, and the other end is connected to the third RGV cart; A tray return conveyor line is arranged on one side of the counterweight perfusion conveyor line. A first RGV cart is arranged between one end of the tray return conveyor line and the end of the counterweight perfusion conveyor line away from the curing buffer zone. Moreover, the other end of the tray return conveyor line is connected to the first RGV cart; A primer painting unloading station is arranged at the end of the counterweight perfusion conveyor line close to the first RGV cart to receive the counterweight housing after primer painting is completed.

2. The automatic pouring and curing conveying system for excavator counterweights according to claim 1, characterized in that: The first RGV cart is a traversing RGV cart.

3. An automatic pouring and curing conveying method for excavator counterweights, characterized in that, Using the excavator counterweight automatic perfusion and curing conveying system described in claim 2, it specifically includes the following steps: Step 1. Place the counterweight shell that has been primed into the pallet located at the primer painting lower hanging station, and convey the pallet to the location of the visual recognition device through the counterweight pouring conveyor line. The visual recognition device automatically scans the specification information of the counterweight shell, and binds the relevant specification information with the RFID of the pallet. Continue to convey the pallet to the bottom of the automatic pouring equipment through the counterweight pouring conveyor line to automatically pour steel slag or concrete blocks. After the pouring is completed, the vibration platform automatically vibrates and compacts it to form a counterweight product. Step 2. The vibrated and compacted counterweight product is transported from the counterweight pouring conveyor line to the automatic weighing station for weighing, and the second RGV trolley transfers the counterweight product to the solidification buffer area for buffering; Step 3. After the curing period of the counterweight product is more than 3 days, according to the order requirements or the scheduling of the central control system, the second RGV trolley will transfer the pallet carrying the counterweight product to the counterweight welding conveyor line, and then transport it to the sealing welding station through the counterweight welding conveyor line. The handling robot will automatically load and assemble, and the welding robot will automatically weld to achieve automatic sealing of the counterweight product; Step 4. After the sealing welding of the counterweight product is completed, the pallet carrying the counterweight product is transferred to the topcoat coating line station. With manual assistance, the counterweight product is hung on the self-propelled hoist and the topcoat coating is automatically carried out, completing the entire process of pouring the excavator counterweight; Step 5. The emptied pallet flows to the lifting station and is lowered to the pallet transition conveyor line. The third RGV trolley connects the pallet to the pallet return conveyor line and is transferred to the counterweight pouring conveyor line and the primer coating lower hanging station by the first RGV trolley to reload the counterweight shell that has been primed.

4. The automatic pouring and curing conveying method for excavator counterweights according to claim 3, characterized in that: The curing buffer area has two layers of automatic conveying rollers, namely a first curing buffer area located at the bottom layer and a second curing buffer area located at the upper layer; In step 2, when the weight of the counterweight product is greater than 5 tons, it is transferred to the first curing buffer area by the second RGV trolley; when the weight of the counterweight product is less than or equal to 5 tons, it is transferred to the second curing buffer area by the second RGV trolley.

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