Shot blasting and sanding system for container

Abstract

The invention relates to the technical field of shot blasting and sanding of containers, in particular to a shot blasting and sanding system for containers, which comprises a track and a sand blasting device, an up-and-down sanding mechanism is arranged at one end of the track, a left-and-right sanding mechanism is arranged at the other end of the track, the left-and-right sanding mechanism is erected on the top side area of a container to be sanded, a collecting box is installed on the track in a matched mode, and a V-shaped belt conveying unit is arranged on the bottom side of the collecting box. The multi-stage steel grit conveying mechanism is installed on the periphery of the container to be sanded, abrasive materials are directly cast through the shot blasting machine by means of mechanical force of motor rotation, the energy utilization rate is high, matched equipment such as a pressure feed type sand cylinder, a sand pipe and an air compressor is not needed, and equipment investment is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of container shot blasting and sandblasting, and particularly relates to a shot blasting and sandblasting system for containers. Background Art

[0002] In modern industrial production, the manufacturing and maintenance of containers is a huge industry. As an efficient cargo transportation carrier, the quality of the side plates and top plates of containers directly affects the safety and reliability of cargo transportation. During the production process of containers, the surface cleaning of welds is a key link, which plays a crucial role in ensuring the strength and corrosion resistance of the container structure. Currently, the surface cleaning of the welds of container side plates and top plates is mainly carried out by means of compressed air sandblasting. However, with the development of technology and the improvement of environmental protection requirements, the traditional sandblasting process has gradually revealed some problems and deficiencies.

[0003] The traditional sandblasting process relies on compressed air to drive abrasives. This method is regarded as a high-energy-consuming process during surface treatment. Electrical energy needs to be first converted into the kinetic energy of compressed air, and then the compressed air drives the abrasives for sandblasting operations, resulting in low energy conversion efficiency and huge power consumption. For container manufacturing enterprises, the increase in energy costs not only affects production costs but also restricts the enterprise's ability to transform towards green manufacturing. Moreover, the traditional sandblasting process requires a series of auxiliary equipment, such as pressure-fed sand cylinders, sand pipes, air compressors, etc. The one-time investment cost of these equipment is relatively high, causing great pressure on the enterprise's upfront capital investment. Summary of the Invention

[0004] The purpose of this part is to outline some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this part, as well as in the abstract and title of the specification of this application, to avoid obscuring the purpose of this part, the abstract, and the title. However, such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In view of the above problems of high cost and high energy consumption in the traditional grinding, the present invention is proposed.

[0006] Therefore, the purpose of the present invention is to provide a shot blasting and sandblasting system for containers.

[0007] To solve the above technical problems, the present invention provides the following technical solution: A shot blasting and sandblasting system for containers, comprising a track for supporting and facilitating the movement of containers. The top side of the track is flush with the ground, and the bottom end of the track is supported on another platform below the ground. A container to be sandblasted is provided on the top of the track. The container to be sandblasted is stacked on the ground, and the container to be sandblasted can be erected above the track by translation through rollers. One end of the track is provided with an up-and-down shot blasting mechanism, and the other end of the track is provided with a left-and-right shot blasting mechanism. The up-and-down shot blasting mechanism moves up and down to perform shot blasting on the side plate area of the container to be shot blasted. The left-and-right shot blasting mechanism is installed on the top side area of the container to be shot blasted to perform shot blasting on the top plate of the container to be shot blasted. The track is cooperatively installed with a collection box, and a V-belt conveyor unit is arranged at the bottom side of the collection box. A multi-stage steel shot conveying mechanism is installed around the container to be shot blasted.

[0008] As a preferred scheme of the shot blasting system for containers according to the present invention, wherein: the top opening of the collection box collects the steel shots of the container to be shot blasted, and the collection box is in a conical structure, and its narrower conical opening faces the V-belt conveyor unit.

[0009] As a preferred scheme of the shot blasting system for containers according to the present invention, wherein: the V-belt conveyor unit is composed of two groups of belt machines. One group of belt machines conveys the falling steel shots to the other group of belt machines, and the conveyed belt machine inputs the steel shots into the multi-stage steel shot conveying mechanism.

[0010] As a preferred scheme of the shot blasting system for containers according to the present invention, wherein: the multi-stage steel shot conveying mechanism includes two types, namely an up-and-down sand conveying mechanism and a left-and-right sand conveying mechanism. The up-and-down sand conveying mechanism cooperates with the up-and-down shot blasting mechanism, and the left-and-right sand conveying mechanism cooperates with the left-and-right shot blasting mechanism. Both the up-and-down sand conveying mechanism and the left-and-right sand conveying mechanism are composed of a group of bucket elevators and a horizontal auger conveyor. The number and erection direction of the horizontal auger conveyor are changed according to the differences of the up-and-down shot blasting mechanism and the left-and-right shot blasting mechanism.

[0011] As a preferred scheme of the shot blasting system for containers according to the present invention, wherein: the up-and-down shot blasting mechanism includes chain transmission parts installed on the side edges of the four corners of the container to be shot blasted. The chain transmission parts are connected with side shot blasting machine assemblies, and the chain transmission parts are provided with gravity counterweights to reduce the load of the side shot blasting machine assemblies on the chain transmission parts.

[0012] As a preferred scheme of the shot blasting system for containers according to the present invention, wherein: the side shot blasting machine assembly is composed of multiple groups of shot blasting machines. And each group of shot blasting machines is evenly installed according to the weld distance of the container to be shot blasted. An arc-shaped blade is installed at the output end of each group of shot blasting machines.

[0013] As a preferred scheme of the shot blasting system for containers according to the present invention, wherein: the arc-shaped blade is provided with an arc surface, and the arc surface faces the rotation direction of the arc-shaped blade. And the throwing opening of the shot blasting machine faces the side plate of the container to be shot blasted.

[0014] As a preferred embodiment of the shot blasting and sandblasting system for containers according to the present invention, the following is provided: the left and right sandblasting mechanisms include left and right transmission members installed in the top side area of the container to be sandblasted. The left and right transmission members are connected to a downward sandblasting machine assembly. The internal structures of the shot blasting machines of the downward sandblasting machine assembly and the side sandblasting machine assembly are the same, and the ejection opening of the shot blasting machine of the downward sandblasting machine assembly faces downward towards the top plate of the container to be sandblasted.

[0015] As a preferred embodiment of the shot blasting and sandblasting system for containers according to the present invention, the following is provided: multiple groups of sand adding ports are installed at the bottom sides of the horizontal auger conveying mechanisms of the up and down conveying mechanism and the left and right sand conveying mechanism, and each group of sand adding ports respectively corresponds to the feeding end of each shot blasting machine.

[0016] As a preferred embodiment of the shot blasting and sandblasting system for containers according to the present invention, the following is provided: a sealing member is provided at the discharging end of the sand adding port. The sealing member can be connected to a mechanical transmission member. After the sandblasting is completed, the sealing member automatically opens, and the steel sand naturally falls into the interior of the shot blasting machine for replenishing materials.

[0017] Advantageous Effects The technical solution provided by the present invention has the following advantageous effects compared with the known prior art: 1. This new type of shot blasting and sandblasting system directly projects abrasive materials by using the mechanical force of the rotating motor, without using compressed air as the driving medium, thus significantly improving the energy utilization rate. The shot blasting and sandblasting system does not need to be equipped with traditional pressure-fed sand cylinders, sand pipes, air compressors and other equipment, reducing the equipment investment cost; 2. The shot blasting and sandblasting system adopts a unique arc-shaped blade design of the shot blasting machine, making the projection direction of the abrasive materials more concentrated, especially suitable for surface cleaning of strip-shaped narrow-area workpieces such as welds, improving the cleaning accuracy and efficiency; 3. The shot blasting and sandblasting system is also equipped with a mechanical automatic sand adding structure, which does not require sensor control, effectively avoiding sensor failure problems that may occur in harsh working environments, improving the stability and reliability of the equipment. Through these innovative designs, the new type of shot blasting and sandblasting system provides a more efficient, energy-saving and environmentally friendly solution for weld surface cleaning in the container manufacturing industry, promoting the technological progress of the entire industry. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for description in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1It is an overall schematic diagram of a shot blasting and sandblasting system for containers.

[0020] Figure 2 It is a side schematic diagram of a shot blasting and sandblasting system for containers.

[0021] Figure 3 It is a schematic diagram of the up-and-down sandblasting mechanism of a shot blasting and sandblasting system for containers.

[0022] Figure 4 It is a schematic diagram of the left-and-right sandblasting mechanism of a shot blasting and sandblasting system for containers.

[0023] Figure 5 It is a schematic diagram of the V-belt conveyor unit of a shot blasting and sandblasting system for containers.

[0024] Figure 6 It is Figure 5 The enlarged view of part A in

[0025] Figure 7 It is a schematic diagram of a shot blasting machine of a shot blasting and sandblasting system for containers.

[0026] Reference numerals: 1, track; 11, container to be sandblasted; 2, up-and-down sandblasting mechanism; 21, chain transmission member; 22, lateral sandblasting machine assembly; 221, shot blasting machine; 222, arc-shaped blade; 2221, arc surface; 3, left-and-right sandblasting mechanism; 31, left-and-right transmission member; 32, downward sandblasting machine assembly; 4, V-belt conveyor unit; 5, multi-stage steel sand conveying mechanism; 51, up-and-down sand conveying mechanism; 52, left-and-right sand conveying mechanism; 6, sand adding port; 61, sealing member; 7, collection box. Detailed implementation manners

[0027] To make the above objects, features and advantages of the present invention more obvious and understandable, the following detailed description of the specific implementation manners of the present invention will be given in conjunction with the accompanying drawings of the specification.

[0028] In the following description, many specific details are set forth to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Those skilled in the art can make similar generalizations without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0029] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure or characteristic that can be included in at least one implementation manner of the present invention. The appearances of "in one embodiment" in different places in this specification do not all refer to the same embodiment, nor are they separate or alternative embodiments that exclude each other with other embodiments.

[0030] Next, the present invention will be described in detail with reference to the schematic diagrams. When describing the embodiments of the present invention in detail, for the convenience of explanation, the cross-sectional views showing the device structure will be enlarged locally not in accordance with the general scale, and the schematic diagrams are only examples and should not limit the scope of protection of the present invention herein. In addition, in actual production, three-dimensional spatial dimensions of length, width, and depth should be included.

[0031] Embodiment Refer to Figures 1 - 7 , which is the first embodiment of the present invention. This embodiment provides a shot blasting and sandblasting system for containers, including a track 1 for supporting and facilitating the movement of containers. The top side of the track 1 is flush with the ground, and the bottom end of the track 1 is supported on another platform below the ground. A container to be sandblasted 11 is provided on the top of the track 1. The containers to be sandblasted 11 are stacked on the ground, and the container to be sandblasted 11 can be placed above the track 1 by translation with rollers. The translation operation of the rollers is simple and easy. The staff only needs to move the container to be sandblasted 11 to the designated position according to the established operation specifications, laying a foundation for the subsequent shot blasting and sandblasting process. An up-and-down sandblasting mechanism 2 is provided at one end of the track 1, and a left-and-right sandblasting mechanism 3 is provided at the other end of the track 1. The up-and-down sandblasting mechanism 2 moves up and down to perform shot blasting on the side plate area of the container to be sandblasted 11. The left-and-right sandblasting mechanism 3 is placed on the top side area of the container to be sandblasted 11 to perform shot blasting on the top plate of the container to be sandblasted 11. A collection box 7 is installed in cooperation with the track 1. A V-belt conveyor unit 4 is provided at the bottom side of the collection box 7. A multi-stage steel sand conveying mechanism 5 is installed around the container to be sandblasted 11. The vertical inner wall surface of the collection box 7 is a horizontal plane, and a wall is built on this horizontal plane. The inner wall of the wall coincides with the inner wall of the collection box 7, and the building formed by this wall forms a sealed shot blasting and sandblasting environment.

[0032] Specifically, the top opening of the collection box 7 collects the steel sand of the container to be sandblasted 11, and the collection box 7 has a conical structure, and its narrower conical opening faces the V-belt conveyor unit 4.

[0033] Furthermore, the conical structure of the collection box 7 helps the steel sand to converge smoothly towards the V-belt conveyor unit under the action of gravity, improving the collection efficiency. The V-belt conveyor unit is composed of two groups of belt machines, forming an efficient conveyor chain. One group of belt machines is responsible for receiving the steel sand falling from the collection box 7 and transporting it to the other group of belt machines, and then the second group of belt machines further transports the steel sand into the multi-stage steel sand conveying mechanism 5.

[0034] Further, the multi-stage steel shot conveying mechanism 5 includes two types: an upper and lower shot conveying mechanism 51 and a left and right shot conveying mechanism 52. The upper and lower shot conveying mechanism 51 cooperates with the upper and lower shot blasting mechanism 2, while the left and right shot conveying mechanism 52 cooperates with the left and right shot blasting mechanism 3. Both the upper and lower shot conveying mechanism 51 and the left and right shot conveying mechanism 52 are composed of a group of bucket elevators and a horizontal auger conveying mechanism. The number and erection direction of the horizontal auger conveying mechanism are changed according to the differences between the upper and lower shot blasting mechanism 2 and the left and right shot blasting mechanism 3.

[0035] Further, the upper and lower shot blasting mechanism 2 includes chain drive parts 21 installed on the side corners of the four corners of the container 11 to be shot blasted. The chain drive parts 21 are connected to side shot blasting machine assemblies 22. The chain drive parts 21 are provided with gravity loading to reduce the load of the side shot blasting machine assemblies 22 on the chain drive parts 21. The upper and lower shot blasting mechanism 2 is responsible for processing the side plate area of the container 11 to be shot blasted. By moving up and down, the shot blasting machine 221 can accurately act on different height positions of the side plate.

[0036] Further, the side shot blasting machine assembly 22 is composed of multiple groups of shot blasting machines 221. Each group of shot blasting machines 221 is evenly erected according to the weld distance of the container 11 to be shot blasted. An arc-shaped blade 222 is installed at the output end of each group of shot blasting machines 221. The arc-shaped blade 222 is provided with an arc surface 2221. The arc surface 2221 faces the rotation direction of the arc-shaped blade 222. The ejection opening of the shot blasting machine 221 faces the side plate of the container 11 to be shot blasted. A unique arc-shaped blade 222 is installed at the output end of each group of shot blasting machines 221. The design of the arc-shaped blade 222 is a major highlight of this system. Its arc surface 2221 faces the rotation direction, making the direction of the abrasive more concentrated when ejected. This concentrated projection method is particularly suitable for surface cleaning of strip-shaped narrow-area workpieces such as welds. Compared with the blades of traditional straight plate-shaped shot blasting machines 221, the arc-shaped blade 222 can significantly improve the shot blasting efficiency and quality, making the cleaning of the weld area more thorough and accurate.

[0037] Further, the left and right shot blasting mechanism 3 includes left and right drive parts 31 installed in the top side area of the container 11 to be shot blasted. The left and right drive parts 31 are connected to a downward shot blasting machine assembly 32. The shot blasting machine 221 of the downward shot blasting machine assembly 32 has the same internal structure as the shot blasting machine 221 of the side shot blasting machine assembly 22. The ejection opening of the shot blasting machine 221 of the downward shot blasting machine assembly 32 faces downward towards the top plate of the container 11 to be shot blasted.

[0038] Furthermore, multiple groups of sand addition ports 6 are installed on the bottom sides of both the vertical conveying mechanism and the lateral auger conveying mechanism 52 of the left-right sand conveying mechanism. Each group of sand addition ports 6 corresponds to the feeding end of each shot blasting machine 221 respectively. A closing member 61 is provided at the discharging end of the sand addition port 6. The closing member 61 can be connected to a mechanical transmission member. After sand blasting is completed, the closing member 61 automatically opens, and the steel sand naturally falls into the interior of the shot blasting machine 221 for supplementary feeding. When the sand blasting operation is completed and the shot blasting machine 221 runs to the stop position, the closing member 61 of the sand addition port 6 will automatically open under the action of the mechanical transmission member. At this time, the steel sand naturally falls under the action of gravity and enters the interior of the shot blasting machine 221 for supplementary feeding. This process does not require sensor control and realizes automatic sand addition entirely relying on the mechanical structure.

[0039] Operation process: The operation process starts with the erection and positioning of the container. The container to be sandblasted 11 is stacked on the ground, which is flush with the horizontal plane on the top side of the track 1. Through the translation of the rollers, the container to be sandblasted 11 is accurately erected above the track 1. This design ensures the stability of the container during the sandblasting process and facilitates the operation of the subsequent sandblasting mechanism. The translation operation of the rollers is simple and easy. The staff only needs to move the container to the designated position according to the established operation specifications, laying the foundation for the subsequent shot blasting and sandblasting process. When the container to be sandblasted 11 is erected, the shot blasting and sandblasting system enters the core sandblasting operation stage. At one end of the track 1, there is an up-and-down sandblasting mechanism 2, and at the other end, there is a left-and-right sandblasting mechanism 3. These two mechanisms respectively perform shot blasting and sandblasting treatment on the side plate area and the top plate area of the container to be sandblasted 11. The up-and-down sandblasting mechanism 2 is responsible for treating the side plate area of the container to be sandblasted 11. It enables the shot blasting machine 221 to accurately act on different height positions of the side plate by moving up and down. Specifically, the up-and-down sandblasting mechanism 2 includes chain transmission parts 21 installed on the side edges of the four corners of the container. These chain transmission parts 21 are connected to the side sandblasting machine components 22. When the system is started, the chain transmission parts 21 drive the side sandblasting machine components 22 to move up and down under the drive of power. In order to reduce the load of the side sandblasting machine components 22 on the chain transmission parts 21, the chain transmission parts 21 are also equipped with gravity loading devices. This design effectively ensures the stability and reliability of the operation of the sandblasting mechanism and extends the service life of the equipment. The side sandblasting machine components 22 are composed of multiple groups of shot blasting machines 221, and each group of shot blasting machines 221 is evenly erected according to the distance of the container welds. Such a layout ensures that the weld area can be evenly and comprehensively sandblasted. At the output end of each group of shot blasting machines 221, there is a unique arc-shaped blade 222. The design of the arc-shaped blade 222 is a major highlight of this system. Its arc surface 2221 faces the rotation direction, making the direction of the abrasive more concentrated when it is thrown out. This concentrated projection method is particularly suitable for the surface cleaning of strip-shaped narrow-area workpieces such as welds. Compared with the traditional straight-shaped blades of the shot blasting machine 221, the arc-shaped blade 222 can significantly improve the sandblasting efficiency and quality, making the cleaning of the weld area more thorough and accurate. The left-and-right sandblasting mechanism 3 mainly performs shot blasting and sandblasting on the top plate area of the container. This mechanism is erected in the top side area of the container. Its core components include left-and-right transmission parts 31 and a downward sandblasting machine component 32. The shot blasting machine 221 of the downward sandblasting machine component 32 has the same internal structure as the shot blasting machine 221 of the side sandblasting machine component 22 and also has high sandblasting ability. However, its throwing opening faces downward and accurately towards the top plate area of the container, ensuring that the abrasive can accurately act on target parts such as the top plate welds. During the operation of the system, the left-and-right sandblasting mechanism 3 moves horizontally and performs sandblasting operations under the drive of the left-and-right transmission parts 31, achieving full coverage of the top plate area and effectively removing impurities and defects on the top plate surface, improving the surface quality.During the shot peening and sandblasting process, the collection and recycling of abrasives (steel shot) are crucial for ensuring the efficient operation of the system. The track 1 is fitted with a collection box 7. When the shot peening and sandblasting operation is in progress, the steel shot that bounces off the surface of the container will directly fall into the collection box 7. The collection box 7 is designed in a conical structure, with its narrower conical opening facing the V-belt conveyor unit. This conical structure helps the steel shot to converge smoothly towards the V-belt conveyor unit under the action of gravity, improving the collection efficiency. The V-belt conveyor unit consists of two sets of belt mechanisms, forming an efficient conveyor chain. One set of belt conveyors is responsible for receiving the steel shot falling from the collection box 7 and transporting it to the other set of belt conveyors. Then, the second set of belt conveyors further transports the steel shot into the multi-stage steel shot conveying mechanism 5. The multi-stage steel shot conveying mechanism 5 is divided into two types: the up-and-down shot conveying mechanism 51 and the left-and-right shot conveying mechanism 52, which cooperate with the up-and-down shot blasting mechanism 2 and the left-and-right shot blasting mechanism 3 respectively. Both the up-and-down shot conveying mechanism 51 and the left-and-right shot conveying mechanism 52 are composed of a set of bucket elevators and horizontal screw conveyors. Among them, the number and erection direction of the horizontal screw conveyors will be adjusted accordingly according to the different requirements of the up-and-down shot blasting mechanism 2 and the left-and-right shot blasting mechanism 3 to ensure that the steel shot can be accurately conveyed to the corresponding positions of each shot blasting mechanism, realizing the recycling of steel shot, reducing production costs, and at the same time improving the operating efficiency of the entire system. To ensure the continuity and stability of the shot peening and sandblasting operation, this system is equipped with a unique mechanical automatic sand adding structure. Multiple sets of sand adding ports 6 are installed on the bottom sides of the horizontal screw conveyors of the up-and-down conveying mechanism and the left-and-right shot conveying mechanism 52. These sand adding ports 6 respectively correspond to the feeding ends of each shot blasting machine 221. When the sandblasting operation is completed and the shot blasting machine 221 runs to the stop position, the closure 61 of the sand adding port 6 will automatically open under the action of mechanical transmission parts. At this time, the steel shot naturally falls under the action of gravity and enters the interior of the shot blasting machine 221 for replenishment. This process does not require sensor control and realizes automatic sand adding completely relying on the mechanical structure, effectively avoiding the problems of sensor and active actuator failures that may occur in harsh working environments, greatly improving the reliability of equipment operation, reducing production interruptions caused by equipment failures, and ensuring the continuity and stability of production; In summary, the working principle of this shot peening and sandblasting system covers multiple links such as the erection and positioning of the container, the shot peening and sandblasting operation, the collection and transportation of steel shot, and the automatic sand adding function. The entire operation process is closely connected and coordinated. Through the delicate cooperation and innovative design of each component, the efficient, energy-saving, and accurate sandblasting treatment of the welds on the side and top plates of the container is realized, providing an advanced technical solution for the surface cleaning work in the container manufacturing industry, and having significant advantages and broad application prospects in improving production efficiency, reducing production costs, and ensuring product quality.

[0040] 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 technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A shot blasting and sandblasting system for containers, characterized in that: including A track (1) for supporting and facilitating the movement of containers. The top side of the track (1) is flush with the ground, while the bottom end of the track (1) is supported on another platform below the ground. A container to be sandblasted (11) is provided on the top of the track (1). The container to be sandblasted (11) is stacked on the ground, and the container to be sandblasted (11) can be erected above the track (1) by translation through rollers. At one end of the track (1), there is an up-and-down sandblasting mechanism (2), and at the other end of the track (1), there is a left-and-right sandblasting mechanism (3). The up-and-down sandblasting mechanism (2) moves up and down to perform shot blasting on the side plate area of the container to be sandblasted (11). The left-and-right sandblasting mechanism (3) is erected in the top side area of the container to be sandblasted (11) to perform shot blasting on the top plate of the container to be sandblasted (11). The track (1) is cooperatively installed with a collection box (7). A V-belt conveyor unit (4) is provided at the bottom side of the collection box (7). A multi-stage steel sand conveying mechanism (5) is installed around the container to be sandblasted (11).

2. The shot blasting and sandblasting system for containers according to claim 1, characterized in that: The top opening of the collection box (7) collects the steel sand of the container to be sandblasted (11), and the collection box (7) has a conical structure, and its narrower conical opening faces the V-belt conveyor unit (4).

3. The shot blasting and sandblasting system for containers according to claim 2, wherein: The V-belt conveyor unit (4) is composed of two groups of belt conveyors. One group of belt conveyors conveys the falling steel sand to the other group of belt conveyors, and the belt conveyor for conveying inputs the steel sand into the multi-stage steel sand conveying mechanism (5).

4. The shot blasting system for containers according to claim 3, wherein: The multi-stage steel sand conveying mechanism (5) has two types: an up-and-down sand conveying mechanism (51) and a left-and-right sand conveying mechanism (52). The up-and-down sand conveying mechanism (51) cooperates with the up-and-down sandblasting mechanism (2), and the left-and-right sand conveying mechanism (52) cooperates with the left-and-right sandblasting mechanism (3). Both the up-and-down sand conveying mechanism (51) and the left-and-right sand conveying mechanism (52) are composed of a group of bucket elevators and a horizontal auger conveyor. The number and erection direction of the horizontal auger conveyor are changed according to the differences of the up-and-down sandblasting mechanism (2) and the left-and-right sandblasting mechanism (3).

5. The shot blasting and sandblasting system for containers according to claim 4, wherein: The up-and-down sandblasting mechanism (2) includes chain transmission parts (21) installed on the four corners and sides of the container to be sandblasted (11). The chain transmission parts (21) are connected with side sandblasting machine components (22), and the chain transmission parts (21) are provided with gravity counterweights to reduce the load of the side sandblasting machine components (22) on the chain transmission parts (21).

6. The shot blasting and sandblasting system for containers according to claim 5, characterized in that: The side sandblasting machine components (22) are composed of multiple groups of shot blast machines (221). Each group of shot blast machines (221) is evenly erected according to the weld distance of the container to be sandblasted (11). An arc-shaped blade (222) is installed at the output end of each group of shot blast machines (221).

7. The shot blasting and sandblasting system for containers according to claim 6, characterized in that: The arc-shaped blade (222) is provided with an arc surface (2221). The arc surface (2221) faces the rotation direction of the arc-shaped blade (222), and the throwing opening of the shot blast machine (221) faces the side plate of the container to be sandblasted (11).

8. The shot blasting system for containers according to claim 7, wherein: The left and right sandblasting mechanisms (3) include left and right transmission members (31) installed in the top side area of the container to be sandblasted (11). The left and right transmission members (31) are connected to a downward sandblasting machine assembly (32). The shot blasting machine (221) of the downward sandblasting machine assembly (32) has the same internal structure as the shot blasting machine (221) of the lateral sandblasting machine assembly (22), and the throwing opening of the shot blasting machine (221) of the downward sandblasting machine assembly (32) faces downward towards the top plate of the container to be sandblasted (11).

9. The shot blasting and sandblasting system for containers according to claim 8, wherein: Multiple groups of sand adding ports (6) are installed at the bottom sides of both the vertical conveying mechanism and the horizontal auger conveying mechanism of the left and right sand conveying mechanisms (52), and each group of sand adding ports (6) respectively corresponds to the feeding end of each shot blasting machine (221).

10. The shot blasting and sandblasting system for containers according to claim 9, wherein: A closing member (61) is provided at the discharging end of the sand adding port (6). The closing member (61) can be connected to a mechanical transmission member. After sandblasting is completed, the closing member (61) automatically opens, and the steel sand naturally falls into the interior of the shot blasting machine (221) for replenishing materials.

Images