Double-trolley row spraying mechanism

Abstract

The utility model relates to the field of box paint spraying, in particular to a double-trolley row spraying mechanism which comprises a row spraying frame, a plurality of spraying guns are arranged on the inner side of the row spraying frame, a first conveying belt and a second conveying belt which are parallel to each other are arranged on the inner side of the row spraying frame, and the first conveying belt and the second conveying belt are each provided with a chain and a conveying trolley. The second conveying belt is provided with a second motor, the conveying trolley is provided with a blocking arm used for being connected with trundles of the container in an abutting mode, and the blocking arm is horizontally arranged. When the conveying trolley conveys the containers, the blocking arms abut against the container trundles and push the containers to move, and when the conveying trolley of the first conveying belt pushes the containers out of the row spraying frame to complete paint spraying, the conveying trolley of the second conveying belt pushes the next container to be subjected to paint spraying to the row spraying frame. And the first conveying belt and the second conveying belt alternately operate, so that the containers are always located in the row spraying frame to be sprayed, and the effect of effectively improving the working efficiency of the spraying device is achieved.

Description

Technical Field

[0001] The present application relates to the field of box painting, and in particular to a double-trolley spraying mechanism. Background Art

[0002] At present, containers have become an important transport carrier in multimodal transport by sea, land and air due to their high standardization, good sealing, low price and low damage rate. In order to extend the service life of containers and improve their appearance, containers are often painted during the production process.

[0003] In the existing technology, casters are often placed at the four corners of the bottom of the container. The transport trolley is driven by a chain, and the transport trolley drives the container equipped with casters into the gantry with a spray gun. When the container passes through the gantry, the spray gun is activated to spray the container. After the spraying is completed, the chain drives the transport trolley back to the original position and transports the next container to be processed to the gantry for spraying.

[0004] Regarding the above-mentioned related technologies, since the position from before the start of spraying to the end of spraying is far away, after the spraying of the previous container is completed, it takes a long time to wait for the transport cart to return to the original position to move the next container to the gantry, resulting in the spray gun needing to be turned on and off repeatedly, and the long waiting time also leads to low overall work efficiency. Utility Model Content

[0005] In order to effectively improve the working efficiency of a spraying device for spraying containers, the present application provides a double-trolley spraying mechanism.

[0006] The present application provides a double-trolley spraying mechanism, which adopts the following technical solution:

[0007] A double-trolley spraying mechanism comprises a spraying frame, a plurality of spray guns are arranged on the inner side of the spraying frame, a first conveyor belt and a second conveyor belt parallel to each other are arranged on the inner side of the spraying frame, the first conveyor belt and the second conveyor belt are both provided with chains and a transporting trolley, the first conveyor belt is provided with a first motor, the second conveyor belt is provided with a second motor, and the transporting trolley is provided with a stop arm for abutting against the casters of a container.

[0008] By adopting the above technical solution, when the transport cart transports the container, the barrier arm abuts against the container casters and pushes the container to move; when the transport cart of the first conveyor belt pushes the container out of the spray rack to complete painting, the transport cart of the second conveyor belt pushes the next container to be painted to the spray rack; the first conveyor belt and the second conveyor belt operate alternately to ensure that there is always a container in the spray rack for spraying, which effectively improves the working efficiency of the spraying device.

[0009] Optionally, two spray racks are provided, the two spray racks are arranged in parallel, and a spraying space is opened between the two spray racks.

[0010] By adopting the above technical solution, two rows of spray racks are provided to spray paint containers at the same time, and the density of spraying and the coverage range of spraying are increased by adding spray guns, thereby effectively improving the quality of spraying.

[0011] Optionally, the spray rack includes a crossbeam and two columns, the columns are provided with vertical slide grooves, the crossbeam is slidably connected to the inner wall of the slide groove, a cylinder is provided at the upper end of the column, the cylinder rod is fixedly connected to the crossbeam, and a plurality of spray guns are provided on the lower end surface of the crossbeam.

[0012] By adopting the above technical solution, the sliding connection between the beam and the column realizes the adjustable height of the beam, and the position of the beam is adjusted by using a cylinder. When a container with a higher height passes through, the cylinder contracts to lift the beam upward.

[0013] Optionally, a partition with a grid is provided below the spraying space, and a waste pool is provided below the partition.

[0014] By adopting the above technical solution, when excess paint flows down the container wall and becomes waste, the waste continues to flow downward through the gridded partition and is collected in the waste pool below the partition, effectively avoiding the accumulation of waste on the ground.

[0015] Optionally, a third conveyor belt for pushing the container toward the spray discharge mechanism is provided on the inner side of the spray discharge rack, and the third conveyor belt is provided with a third motor, a chain and a transport trolley.

[0016] By adopting the above technical solution, the feeding of the ejection mechanism is achieved through the third conveyor belt, the transport trolley installed thereon and the third motor.

[0017] Optionally, a rotating shaft is provided on the upper end surface of the transport trolley, a connecting hole adapted to the rotating shaft is opened on the barrier arm, and a limit block for limiting the position of the barrier arm is provided on the upper end surface of the trolley.

[0018] By adopting the above technical solution, when the trolley transports the container, the stop arm abuts against the limit block to push the container. When the trolley hits another caster of the container during the process of returning to the initial position, the stop arm rotates around the shaft to avoid the caster.

[0019] Optionally, limit sensors for limiting the position of the transport trolley are provided at the ends of the first conveyor belt and the second conveyor belt.

[0020] By adopting the above technical solution, when the transport trolley hits the limit sensor, it means that the transport trolley has returned to the initial position, and the corresponding motor stops moving, thereby effectively limiting the position of the transport trolley.

[0021] Optionally, the spray rack is provided with a lighting lamp, which faces the inner side of the spray rack.

[0022] By adopting the above technical solution, when the container enters the spray rack, the lighting lamp illuminates the container being painted, making it easier for operators to monitor the container being painted.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. When the transport trolley transports the container, the blocking arm contacts the container caster and pushes the container to move. When the transport trolley of the first conveyor belt pushes the container out of the spray rack to complete the painting, the transport trolley of the second conveyor belt pushes the next container to be painted to the spray rack. The first conveyor belt and the second conveyor belt run alternately to ensure that there is always a container in the spray rack for spraying, which effectively improves the working efficiency of the spraying device;

[0025] 2. Two rows of spray racks are set up to spray paint containers at the same time. By adding spray guns, the density of spraying and the coverage range of spraying are increased, which effectively improves the quality of spraying. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of a double-trolley spray mechanism.

[0027] Figure 2 yes Figure 1 Enlarged schematic diagram of part A.

[0028] Figure 3 It is a top view of the overall structure.

[0029] Explanation of the reference numerals: 1. partition; 11. waste pool; 12. limit sensor; 2. first conveyor belt; 21. first motor; 22. chain; 3. second conveyor belt; 31. second motor; 4. third conveyor belt; 41. third motor; 5. spray rack; 51. column; 52. beam; 53. lighting lamp; 54. cylinder; 55. spray gun; 56. slide; 6. transport trolley; 61. rotating shaft; 62. limit block; 63. stop arm; 7. spraying space. DETAILED DESCRIPTION

[0030] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0031] The embodiment of the present application discloses a double-trolley spraying mechanism.

[0032] Reference Figure 1 and Figure 2A double-carriage spraying mechanism includes a spraying rack 5, a first conveyor belt 2 and a second conveyor belt 3 are arranged in the spraying rack 5, and both the first conveyor belt 2 and the second conveyor belt 3 are provided with a chain 22 and a transporting trolley 6. When the transporting trolley 6 of the first conveyor belt 2 pushes the container that has been sprayed out of the spraying rack 5, the transporting trolley 6 on the second conveyor belt 3 pushes another container to be sprayed into the spraying rack 5. The transporting trolley 6 of the first conveyor belt 2 sends the container that has been sprayed to a designated position, then returns to the initial position and pushes another container to be sprayed toward the spraying rack 5. Through the alternating operation of the two transporting trolleys 6, it is realized that there are containers continuously entering the spraying rack 5, which effectively improves the efficiency of the spraying mechanism.

[0033] Reference Figure 1 and Figure 3 , a third conveyor belt 4 is provided inside the spray rack 5, and a third motor 41, a chain 22 and a transport trolley 6 are provided on the third conveyor belt 4. In the processing flow of the container, it is usually an assembly line operation. Therefore, there are other processing steps before the container enters the spray mechanism. The third conveyor belt 4 is installed and the third motor 41 is used to rotate the transport trolley 6 to transport the materials of the previous step to the spray mechanism. When the transport trolley 6 on the third conveyor belt 4 is transported to the position, this position is also within the movement range of the transport trolley 6 on the first conveyor belt 2 and the second conveyor belt 3, so that the material feeding to the spray mechanism is realized.

[0034] Reference Figure 1 and Figure 2 When the third conveyor belt 4 delivers the container to the spray rack 5, the first motor 21 installed on the first conveyor belt 2 drives the chain 22 to rotate and delivers the transport trolley 6 to the bottom of the container. When the transport trolley 6 enters the bottom of the container, the blocking arm 63 will contact the caster under the container. Since the upper end surface of the transport trolley 6 is provided with a rotating shaft 61, and the blocking arm 63 is provided with a connecting hole and realizes the rotation connection with the rotating shaft 61 through the connecting hole. In the process of the transport trolley 6 entering the container, when the caster contacts the blocking arm 63, the blocking arm 63 rotates into the transport trolley 6 and avoids the caster. The ends of the first transmission belt and the second conveyor belt 3 are both provided with limit sensors 12. When the transport trolley 6 contacts the limit sensor 12, the first motor 21 stops rotating. When the transport cart 6 hits the limit sensor 12, it means that the transport cart 6 has reached the limit position of the first conveyor belt 2 or the second conveyor belt 3, and the cart can now contact the casters under the container sent by the third transmission belt. As the first motor 21 drives the chain 22 to rotate, the stop arm 63 above the transport cart 6 turns to abut against the limit block 62.

[0035] Reference Figure 1 and Figure 2, the transport trolley 6 on the first conveyor belt 2 pushes the container toward the spray rack 5. At this time, the transport trolley 6 on the second conveyor belt 3 has already sent the container out of the spray rack 5. At this time, the second motor 31 will drive the chain 22 on the second conveyor belt 3 to rotate and then drive the transport trolley 6 to the front of the spray rack 5, preparing to transport the next container to the rear.

[0036] Reference Figure 1 The spray rack 5 includes two columns 51 and a crossbeam 52. The two columns 51 are respectively placed on the two sides of the first conveyor belt 2 and the second conveyor belt 3 away from each other, and a vertical slide 56 is provided on the side of the columns 51 close to each other. The two ends of the crossbeam 52 are respectively slidably connected with the inner walls of the slide 56 of the two columns 51. A cylinder 54 is installed above the column 51, and the cylinder 54 rod of the cylinder 54 is connected with the crossbeam 52. The crossbeam 52 slides up and down along the slide 56 on the column 51 through the extension and contraction of the cylinder 54.

[0037] Reference Figure 1 , a plurality of spray guns 55 are installed on the lower end surface of the crossbeam 52, and a plurality of spray guns 55 are also installed on the side of the column 51 with the slide 56, and the spray guns 55 are all directed to the inside of the spray rack 5. When processing containers of different sizes, the up and down movement of the crossbeam 52 is controlled by the extension and contraction of the cylinder 54. When spraying paint on a smaller container, the cylinder 54 extends to push the crossbeam 52 to move downward along the slide 56, shortening the distance between the spray gun 55 and the container, so that the spray gun 55 is at the best spraying distance. When spraying paint on a larger container, the cylinder 54 retracts so that the crossbeam 52 will not collide with the container.

[0038] Reference Figure 1 There are two rows of spray racks 5, which are arranged along the length direction of the first conveyor belt 2 and a spraying space 7 is formed between the two rows of spray racks 5. Since the spray gun 55 is sprayed on the moving container, a single spray gun 55 may spray unevenly or the thickness is insufficient after spraying. Therefore, two rows of spray racks 5 are arranged to spray the container at the same time. When the container passes through the two rows of spray racks 5, the container is first sprayed by the row of spray racks 5 located in the front and then sprayed again by the second row of spray racks 5. After two times of spraying, the possible spraying leakage or uneven spraying during the container spraying process is greatly reduced.

[0039] Reference Figure 1When spraying containers, which may have an impact on the environment and be greatly affected by the environment, the process is often carried out in a house or shed. Therefore, the use environment of the spraying mechanism is usually poor in light. A lighting lamp 53 is installed on the spraying rack 5. The lighting lamp 53 illuminates the spraying space 7 between the two spraying racks 5, so that the operator can clearly see the spraying situation of the container in the spraying space 7, which is convenient for the operator to operate if there are obvious defects in the spraying or danger occurs.

[0040] Reference Figure 1 and Figure 3 A partition plate 1 with a grid is installed below the spraying space 7 between the two spraying frames, and a waste pool 11 is opened below. Since the coloring is done by spraying, some paint may not be completely attached to the container, and the excess paint falls to the ground and becomes waste. Since the partition plate 1 with a grid is installed, the waste flows down along the partition plate 1 into the waste pool 11 below, so that the waste cannot accumulate on the ground.

[0041] The implementation principle of a double-trolley spraying mechanism in an embodiment of the present application is as follows: a first conveyor belt 2 and a second conveyor belt 3 are set, and when the transport trolley 6 on the first conveyor belt 2 pushes the container out of the spray rack 5, the transport trolley 6 on the second conveyor belt 3 pushes the next container to be painted into the spray rack 5. Through the alternating reciprocating motion of the two transport trolleys 6, there are always containers being painted in the spray rack 5, which effectively improves the working efficiency of the spraying mechanism.

[0042] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A double-carriage spraying mechanism, comprising a spraying frame (5), characterized in that: A plurality of spray guns (55) are arranged on the inner side of the spray rack (5); a first conveyor belt (2) and a second conveyor belt (3) are arranged on the inner side of the spray rack (5) and are parallel to each other; the first conveyor belt (2) and the second conveyor belt (3) are both provided with a chain (22) and a transport trolley (6); the first conveyor belt (2) is provided with a first motor (21); the second conveyor belt (3) is provided with a second motor (31); the transport trolley (6) is provided with a stop arm (63) for contacting with the casters of the container; the stop arm (63) is arranged horizontally.

2. A double-trolley spraying mechanism according to claim 1, characterized in that: There are two spray racks (5), which are arranged in parallel, and a spraying space (7) is provided between the two spray racks (5).

3. A double-trolley spraying mechanism according to claim 2, characterized in that: The spray rack comprises a crossbeam (52) and two upright posts (51), the upright posts (51) are provided with vertical slide grooves (56), the crossbeam (52) is slidably connected to the inner wall of the slide groove (56), a cylinder (54) is provided at the upper end of the upright post (51), a rod of the cylinder (54) is fixedly connected to the crossbeam (52), and a plurality of spray guns (55) are provided on the lower end surface of the crossbeam (52).

4. A double-trolley spraying mechanism according to claim 2, characterized in that: A partition plate (1) with a grid is provided below the spraying space (7), and a waste pool (11) is provided below the partition plate (1).

5. A double-trolley spraying mechanism according to claim 1, characterized in that: A third conveyor belt (4) for pushing the container toward the spray discharge mechanism is provided inside the spray discharge rack (5); the third conveyor belt (4) is provided with a third motor (41), a chain (22) and a transport trolley (6).

6. A double-trolley spraying mechanism according to claim 1, characterized in that: The upper end surface of the transport trolley (6) is provided with a rotating shaft (61), the blocking arm (63) is provided with a connecting hole adapted to the rotating shaft (61), and the upper end surface of the trolley is provided with a limiting block (62) for limiting the position of the blocking arm (63).

7. A double-trolley spraying mechanism according to claim 1, characterized in that: Limit sensors (12) for limiting the position of the transport trolley (6) are provided at the ends of the first conveyor belt (2) and the second conveyor belt (3).

8. The double-trolley spraying mechanism according to claim 1, characterized in that: The spray rack (5) is provided with an illumination lamp (53), and the illumination lamp (53) faces the inner side of the spray rack (5).

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