Plastic bottle surface paint spraying device

Abstract

The utility model provides a plastic bottle surface paint spraying device which comprises a working table, an annular groove is formed in the top of the working table, a circulating line is arranged in the annular groove, a plurality of moving tables are arranged on the circulating line, rotating cylinders are rotationally installed at the tops of the moving tables, and the rotating cylinders are arranged in the annular groove. A vertical groove is formed in the top of the rotating cylinder, a sliding rod is slidably mounted in the vertical groove, and a bearing column is fixedly connected to the top end of the sliding rod. Through cooperation of a rotating cylinder, a gear ring and a rack, the rotating cylinder, a sliding rod and a bearing column are driven to rotate synchronously, so that a plastic bottle is driven to rotate, through cooperation of a positioning ring, a shifting rod and a rail groove, the sliding rod and the bearing column are driven to reciprocate up and down synchronously, and thus the plastic bottle is driven to reciprocate up and down. The plastic bottle is driven to do up-and-down reciprocating motion while rotating comprehensively, paint spraying uniformity is guaranteed, up-and-down reciprocating motion of a spray gun is replaced by driving the plastic bottle to do up-and-down reciprocating motion, and the technology is optimized.

Description

Technical Field

[0001] This utility model relates to the field of plastic bottle production technology, and in particular to a plastic bottle surface painting device. Background Technology

[0002] Plastic bottle surface painting equipment is a mechanical device specifically designed to coat the exterior of plastic bottles with a layer of paint or coating. This type of equipment is usually designed as an automated or semi-automated production line to improve production efficiency and coating quality. It mainly includes a conveying system and a painting area. The conveying system is used to transport plastic bottles and can be linear, circular, or any form customized according to the factory layout. The painting area is the core working area, equipped with automatic or manual spray guns. Modern equipment often uses robotic arms to carry the spray guns, which can precisely control the position, angle, and amount of paint spraying. The paint can be water-based paint, oil-based paint, or other special-purpose coatings.

[0003] Existing plastic bottle surface painting devices are typically set up as automated production lines, transporting plastic bottles via a circulating line so that multiple bottles pass through the painting area in sequence. The spray guns in the painting area move up and down to expand the painting area. This method has drawbacks: the spray guns experience brief stops and vibrations during the up-and-down reciprocating motion, affecting the painting accuracy. Secondly, controlling the spray guns to perform precise up-and-down reciprocating motion requires a relatively complex control system and technology, and the motor drive is energy-intensive. Therefore, we propose a plastic bottle surface painting device to solve this problem. Utility Model Content

[0004] The purpose of this utility model is to solve the problems mentioned in the background art and to provide a plastic bottle surface painting device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A plastic bottle surface spraying device includes a workbench with an annular groove at its top. A circulation line is arranged within the annular groove, and multiple movable platforms are arranged on the circulation line. A rotating cylinder is rotatably mounted on the top of each movable platform. A vertical groove is formed at the top of the rotating cylinder, and a sliding rod is slidably mounted within the vertical groove. A support column is fixedly connected to the top of the sliding rod, and the support column is used to insert into and position the plastic bottle. A positioning ring is rotatably mounted on the outer side of the sliding rod, and a lever is fixedly mounted on one side of the positioning ring. A vertical plate is fixedly mounted on the top of the workbench, and a track groove is formed on one side of the vertical plate. The lever cooperates with the track groove to drive the sliding rod to move up and down reciprocally.

[0007] Preferably, two guide plates are fixedly installed on the outer side of the positioning ring. The guide plates are L-shaped, and two guide grooves are opened on the top of the moving platform. The guide plates are slidably installed in the corresponding guide grooves.

[0008] Preferably, the track groove includes a converging section and a wavy section, wherein the top and bottom inner walls of the converging section are both inclined, and the converging section gradually narrows from left to right.

[0009] Preferably, a return spring is fixedly connected to the bottom of the sliding rod, and the bottom end of the return spring is fixedly connected to the bottom inner wall of the corresponding vertical groove.

[0010] Preferably, the inner wall of the vertical groove is provided with a plurality of built-in grooves, and a plurality of side plates are fixedly installed on the outer side of the sliding rod, the side plates being slidably installed in the corresponding built-in grooves.

[0011] Preferably, the supporting column is in the shape of a truncated cone, the outer side of the supporting column is provided as a sliding surface, and the top of the supporting column is provided as a round head.

[0012] Preferably, a rack is fixedly installed on one inner wall of the annular groove, and a toothed ring is fixedly sleeved on the outer side of the rotating cylinder, with the rack and toothed ring being adapted to each other.

[0013] Preferably, a number of brackets are fixedly installed on the top of the workbench, and a number of spray guns are set on the brackets.

[0014] The beneficial effects of this utility model are as follows:

[0015] By coordinating the rotating cylinder, gear ring, and rack, the rotating cylinder, sliding rod, and support column rotate synchronously, thereby causing the plastic bottle to rotate. By coordinating the positioning ring, lever, and track groove, the sliding rod and support column reciprocate up and down synchronously, thereby causing the plastic bottle to reciprocate up and down. This combination ensures the uniformity of the paint spraying by making the plastic bottle rotate and reciprocate up and down simultaneously. Furthermore, by driving the plastic bottle to reciprocate up and down, the process is optimized, replacing the need to drive the spray gun to reciprocate up and down. Attached Figure Description

[0016] Figure 1 This is a first-view perspective three-dimensional structural diagram of a plastic bottle surface spraying device proposed in this utility model;

[0017] Figure 2 This is a two-dimensional structural diagram of a plastic bottle surface spraying device proposed in this utility model from a second perspective.

[0018] Figure 3 This is a three-dimensional structural diagram from a third perspective of a plastic bottle surface spraying device proposed in this utility model.

[0019] Figure 4 This is a three-dimensional structural diagram of the rotating cylinder of a plastic bottle surface spraying device proposed in this utility model;

[0020] Figure 5 This is a cross-sectional view of the rotating cylinder of a plastic bottle surface spraying device proposed in this utility model.

[0021] Figure 6 This is a front view structural diagram of the upright plate of a plastic bottle surface spraying device proposed in this utility model.

[0022] The attached figures are labeled as follows:

[0023] In the diagram: 1. Workbench; 2. Annular groove; 3. Circulation line; 4. Moving table; 5. Rotating cylinder; 6. Sliding rod; 7. Positioning ring; 8. Pulley; 9. Vertical plate; 10. Track groove; 11. Support column; 12. Guide plate; 13. Converging section; 14. Wave section; 15. Return spring; 16. Internal groove; 17. Side plate; 18. Rack; 19. Gear ring; 20. Bracket; 21. Spray gun. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Reference Figure 1-6 A plastic bottle surface painting device includes a workbench 1, an annular groove 2 on the top of the workbench 1, a circulation line 3 inside the annular groove 2, and multiple moving platforms 4 on the circulation line 3. The circulation line 3 is a closed-path conveying system, including a track and a drive system, used to drive the moving platforms 4 to move at a constant speed. A rotating cylinder 5 is rotatably mounted on the top of the moving platform 4. A vertical groove is opened on the top of the rotating cylinder 5, and a sliding rod 6 is slidably mounted in the vertical groove. A support column 11 is fixedly connected to the top of the sliding rod 6. The support column 11 is used to insert into the plastic bottle and position it. A positioning ring 7 is rotatably mounted on the outside of the sliding rod 6. A lever 8 is fixedly mounted on one side of the positioning ring 7. A vertical plate 9 is fixedly mounted on the top of the workbench 1. A track groove 10 is opened on one side of the vertical plate 9. The lever 8 cooperates with the track groove 10 to drive the sliding rod 6 to move up and down reciprocally.

[0026] In this embodiment, two guide plates 12 are fixedly installed on the outer side of the positioning ring 7. The guide plates 12 are L-shaped. Two guide grooves are opened on the top of the moving platform 4. The guide plates 12 are slidably installed in the corresponding guide grooves to limit the positioning ring 7, so that the positioning ring 7 can only move vertically, ensuring that the lever 8 can enter the track groove 10 every time.

[0027] In this embodiment, the track groove 10 includes a converging section 13 and a wave section 14. The top inner wall and bottom inner wall of the converging section 13 are both inclined. The converging section 13 gradually narrows from left to right. The converging section 13 is designed because the positioning ring 7 fluctuates in the vertical position. The inclined surface of the converging section 13 can squeeze the lever 8 into the wave section 14.

[0028] In this embodiment, a return spring 15 is fixedly connected to the bottom of the sliding rod 6, and the bottom end of the return spring 15 is fixedly connected to the bottom inner wall of the corresponding vertical groove.

[0029] In this embodiment, a plurality of built-in grooves 16 are provided on the inner wall of the vertical groove, and a plurality of side plates 17 are fixedly installed on the outer side of the sliding rod 6, and the side plates 17 are slidably installed in the corresponding built-in grooves 16.

[0030] In this embodiment, the support column 11 is truncated cone-shaped, with a smooth outer surface and a rounded top. The support column 11 is narrower at the top and wider at the bottom, thus adapting to various plastic bottles. The plastic bottle covers the outer side of the support column 11 and gradually moves downward until the bottle mouth is in an interference fit with the support column 11, thereby limiting the plastic bottle and allowing it to move synchronously with the support column 11.

[0031] In this embodiment, a rack 18 is fixedly installed on the inner wall of the annular groove 2, and a toothed ring 19 is fixedly sleeved on the outer side of the rotating cylinder 5. The rack 18 and the toothed ring 19 are adapted to each other.

[0032] In this embodiment, a number of brackets 20 are fixedly installed on the top of the workbench 1, and a number of spray guns 21 are provided on the brackets 20.

[0033] The working principle of this utility model is as follows: The plastic bottle is inserted upside down into the support column 11. The bottle mouth and the support column 11 are interference-fitted to limit the plastic bottle. The circulation line 3 drives multiple moving platforms 4 to move synchronously, thereby transporting multiple plastic bottles to the painting area in sequence. The rack 18, the upright plate 9, the bracket 20 and multiple spray guns 21 are all set in the painting area. When the moving platform 4 enters the painting area, the toothed ring 19 meshes with the rack 18. The moving platform 4 drives the toothed ring 19 to move linearly along the rack 18, thereby driving the rotating cylinder 5, the sliding rod 6 and the support column 11 to rotate synchronously, thereby driving the plastic bottle to rotate, so that the spray gun 21 can spray paint evenly on the plastic bottle. The lever 8 enters the track groove 10. With the help of the converging groove, the lever 8 enters the wave section 14 and moves linearly along the wave section 14, thereby driving the positioning ring 7 and the sliding rod 6 to move up and down reciprocally, expanding the painting range of the plastic bottle.

[0034] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A device for spray painting the surface of a plastic bottle, characterized in that, The system includes a workbench (1), with an annular groove (2) on the top of the workbench (1). A circulation line (3) is provided in the annular groove (2), and multiple moving platforms (4) are provided on the circulation line (3). A rotating cylinder (5) is rotatably installed on the top of the moving platform (4). A vertical groove is provided on the top of the rotating cylinder (5), and a sliding rod (6) is slidably installed in the vertical groove. A support column (11) is fixedly connected to the top of the sliding rod (6). The support column (11) is used to insert into the plastic bottle and position it. A positioning ring (7) is rotatably installed on the outside of the sliding rod (6). A lever (8) is fixedly installed on one side of the positioning ring (7). A vertical plate (9) is fixedly installed on the top of the workbench (1). A track groove (10) is provided on one side of the vertical plate (9). The lever (8) cooperates with the track groove (10) to drive the sliding rod (6) to move up and down reciprocally.

2. The plastic bottle surface spraying device according to claim 1, characterized in that, Two guide plates (12) are fixedly installed on the outer side of the positioning ring (7). The guide plates (12) are L-shaped. Two guide grooves are opened on the top of the moving platform (4). The guide plates (12) are slidably installed in the corresponding guide grooves.

3. The plastic bottle surface spraying device according to claim 1, characterized in that, The track groove (10) includes a converging section (13) and a wavy section (14). The top inner wall and bottom inner wall of the converging section (13) are both inclined. The converging section (13) gradually narrows from left to right.

4. The plastic bottle surface spraying device according to claim 1, characterized in that, A return spring (15) is fixedly connected to the bottom of the sliding rod (6), and the bottom end of the return spring (15) is fixedly connected to the bottom inner wall of the corresponding vertical groove.

5. The plastic bottle surface spraying device according to claim 1, characterized in that, The inner wall of the vertical groove is provided with several built-in grooves (16), and several side plates (17) are fixedly installed on the outer side of the sliding rod (6). The side plates (17) are slidably installed in the corresponding built-in grooves (16).

6. The plastic bottle surface spraying device according to claim 1, characterized in that, The supporting column (11) is in the shape of a cone, the outer side of the supporting column (11) is provided as a sliding surface, and the top of the supporting column (11) is provided as a round head.

7. A plastic bottle surface painting device according to claim 1, characterized in that, A rack (18) is fixedly installed on one inner wall of the annular groove (2), and a toothed ring (19) is fixedly sleeved on the outer side of the rotating cylinder (5). The rack (18) and the toothed ring (19) are compatible.

8. A plastic bottle surface spraying device according to claim 1, characterized in that, Several brackets (20) are fixedly installed on the top of the workbench (1), and several spray guns (21) are set on the brackets (20).

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