Spraying device for plastic packaging bag production

By coordinating the spraying mechanism, the moving mechanism, and the limiting components, the problem of displacement of plastic packaging bags during the spraying process is solved, achieving a uniform spraying effect and improving the practicality of the plastic packaging bag production equipment.

CN224271624UActive Publication Date: 2026-05-26QINGDAO XINDA PACKAGING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO XINDA PACKAGING CO LTD
Filing Date
2026-04-23
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing spraying equipment for plastic packaging bag production is prone to displacement of plastic packaging bags during spraying, resulting in poor spraying effect.

Method used

The system employs a combined design of a spraying mechanism, a moving mechanism, and a limiting component. The spraying equipment is driven to move by an electric cylinder, and the moving plate is moved by the meshing of a motor and gears. The limiting component then presses the packaging bag to achieve full spraying.

Benefits of technology

It achieves comprehensive and uniform coating of packaging bags, improving coating effect and practicality.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224271624U_ABST
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Abstract

The utility model relates to the technical field of plastic packaging bag production, in particular to a spraying device for plastic packaging bag production, which realizes comprehensive spraying operation on a packaging bag through cooperation of a spraying mechanism, a moving mechanism and two limiting components, so that the spraying effect is more uniform, and the practicability is higher. A U-shaped plate is fixedly installed on the workbench, a spraying mechanism is arranged on the U-shaped plate and comprises an electric cylinder, the electric cylinder is fixedly installed on the U-shaped plate, two material barrels are symmetrically placed on the U-shaped plate, communicating pipes are installed at the bottom ends of the two material barrels in a communicating mode, a connecting plate is fixedly installed at the bottom end of the electric cylinder, and spraying equipment is arranged at the bottom end of the connecting plate. The two communicating pipes penetrate through the connecting plate to communicate with the spraying equipment, a moving mechanism is arranged on the workbench and comprises a moving plate, the moving plate is slidably connected with the workbench, a rack is fixedly installed at the bottom end of the moving plate, and a sliding groove is formed in the workbench.
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Description

Technical Field

[0001] This utility model relates to the technical field of plastic packaging bag production, specifically to a spraying device for plastic packaging bag production. Background Technology

[0002] Plastic packaging bags are packaging bags made of plastic as raw material, used in the production and sale of various daily necessities, and are widely used in daily life and industrial production. Spraying is a coating method that uses a spray gun or disc atomizer to disperse the material into uniform and fine droplets using pressure or centrifugal force, and then applies the coating to the surface of the object. It can be divided into air spraying, airless spraying, electrostatic spraying, and various derivative methods of the above basic spraying forms, such as high-flow-rate low-pressure atomization spraying, thermal spraying, automatic spraying, and multi-group spraying.

[0003] Existing spraying equipment for plastic packaging bag production involves placing the plastic packaging bags on a pallet for spraying. This makes the plastic packaging bags prone to displacement during spraying, resulting in poor spraying effects. Therefore, a new spraying equipment for plastic packaging bag production is needed to improve the above problems. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the shortcomings of the existing technology, this utility model provides a spraying device for the production of plastic packaging bags, which achieves comprehensive spraying operation on packaging bags through the cooperation of a spraying mechanism, a moving mechanism and two limiting components, resulting in a more uniform spraying effect and high practicality.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a spraying device for producing plastic packaging bags, including a workbench, on which a U-shaped plate is fixedly installed;

[0008] A spraying mechanism is provided on the U-shaped plate. The spraying mechanism includes an electric cylinder, which is fixedly installed on the U-shaped plate. Two material barrels are symmetrically placed on the U-shaped plate. The bottom ends of the two material barrels are connected to a connecting pipe. A connecting plate is fixedly installed at the bottom end of the electric cylinder. A spraying device is provided at the bottom end of the connecting plate. Both connecting pipes pass through the connecting plate and are connected to the spraying device.

[0009] A moving mechanism is provided on the workbench. The moving mechanism includes a moving plate that is slidably connected to the workbench. A rack is fixedly installed at the bottom end of the moving plate. A slide groove is provided on the workbench, and a slide rod is fixedly installed on the slide groove. The rack is slidably connected to the slide groove and the slide rod. A mounting frame is fixedly installed at the bottom end of the workbench, and a motor is fixedly installed on the mounting frame. Two rotating shafts are symmetrically rotated on the workbench. The output end of the motor is fixedly connected to one end of one of the rotating shafts. A first gear is fixedly installed on each of the two rotating shafts, and the two first gears mesh. A second gear is fixedly installed on each of the two rotating shafts, and the two second gears mesh with both sides of the rack.

[0010] The movable plate is equipped with two limiting components. One of the limiting components includes an adjusting plate that fits into the movable plate. Two electric push rods are symmetrically fixed on the adjusting plate and connected by a pressure plate. A screw is rotatably mounted on the adjusting plate and screwed onto the movable plate.

[0011] The regulating plate is stabilized through stabilizing components.

[0012] Preferably, the stabilizing component includes two limiting blocks, and two stabilizing grooves are symmetrically opened on the moving plate. Limiting rods are fixedly installed in both stabilizing grooves, and the two limiting blocks are slidably connected to the two stabilizing grooves and the two limiting rods.

[0013] Furthermore, a protective cover is fixedly installed at the bottom of the workbench, and both rotating shafts are located inside the protective cover.

[0014] Furthermore, two stabilizing rods are symmetrically fixedly installed on the U-shaped plate, and the connecting plate is slidably connected to the two stabilizing rods.

[0015] Based on the aforementioned scheme, a stabilizing cylinder is fixedly installed on the U-shaped plate, and the electric cylinder is slidably connected to the stabilizing cylinder.

[0016] Furthermore, anti-slip pads are provided at the bottom ends of both pressure plates.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, the present invention provides a spraying device for the production of plastic packaging bags, which has the following beneficial effects:

[0019] The required coating material is transferred to the spraying equipment via two material buckets and two connecting pipes. The electric cylinder is activated, moving the connecting plate and the spraying equipment to a suitable position. The packaging bag is placed on the moving plate and secured by two limiting components. The motor is then started, providing power. The meshing of two first gears causes two rotating shafts to rotate synchronously in opposite directions, which in turn causes two second gears to rotate synchronously. The meshing of the second gears and rack causes the rack to move, which in turn moves the moving plate. This movement of the moving plate completes the overall spraying of the packaging bag, resulting in a more uniform coating and high practicality. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic cross-sectional view of the present invention.

[0022] Figure 3 This is a schematic diagram of the connection between the motor and the rotating shaft of this utility model;

[0023] Figure 4 This is a schematic diagram of the meshing structure of the rack and the second gear of this utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the limiting block and limiting rod of this utility model.

[0025] The following are labels in the attached diagram: 1. Workbench; 2. U-shaped plate; 3. Material bucket; 4. Connecting pipe; 5. Electric cylinder; 6. Connecting plate; 7. Spraying equipment; 8. Moving plate; 9. Rack; 10. Mounting bracket; 11. Motor; 12. Rotating shaft; 13. First gear; 14. Second gear; 15. Adjusting plate; 16. Electric push rod; 17. Pressure plate; 18. Screw; 19. Protective cover; 20. Stabilizing rod; 21. Stabilizing cylinder; 23. Limiting block; 24. Limiting rod; 25. Anti-slip mat. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0027] Please see Figure 1-3A spraying device for producing plastic packaging bags includes a workbench 1, on which a U-shaped plate 2 is fixedly installed.

[0028] Please see Figure 1-3 A spraying mechanism is provided on the U-shaped plate 2. The spraying mechanism includes an electric cylinder 5, which is fixedly installed on the U-shaped plate 2. Two material barrels 3 are symmetrically placed on the U-shaped plate 2. The bottom ends of the two material barrels 3 are connected to a connecting pipe 4. A connecting plate 6 is fixedly installed at the bottom end of the electric cylinder 5. A spraying device 7 is provided at the bottom end of the connecting plate 6. The two connecting pipes 4 pass through the connecting plate 6 and are connected to the spraying device 7. The material to be sprayed is transferred to the spraying device 7 through the cooperation of the two material barrels 3 and the two connecting pipes 4. By starting the electric cylinder 5, the electric cylinder 5 drives the connecting plate 6 and the spraying device 7 to move and operate, moving the spraying device 7 to a suitable position to wait for spraying.

[0029] Please see Figure 1-4 The workbench 1 is equipped with a moving mechanism, which includes a moving plate 8 slidably connected to the workbench 1. A rack 9 is fixedly installed at the bottom end of the moving plate 8. A slide groove is provided on the workbench 1, and a slide rod is fixedly installed on the slide groove. The rack 9 is slidably connected to the slide groove and the slide rod. A mounting frame 10 is fixedly installed at the bottom end of the workbench 1, and a motor 11 is fixedly installed on the mounting frame 10. Two rotating shafts 12 are symmetrically rotatably mounted on the workbench 1. The output end of the motor 11 is fixedly connected to one end of one of the rotating shafts 12. A first gear is fixedly installed on each of the two rotating shafts 12. A gear 13 is formed, with two first gears 13 meshing together. Two second gears 14 are fixedly mounted on each of the two rotating shafts 12. Both second gears 14 mesh with both sides of the rack 9. When the motor 11 is started, it provides power. Through the meshing of the two first gears 13, the two rotating shafts 12 rotate synchronously in opposite directions, which in turn causes the two second gears 14 to rotate synchronously. Through the meshing of the two second gears 14 and the rack 9, the two second gears 14 drive the rack 9 to move, which in turn causes the rack 9 to drive the moving plate 8 to move.

[0030] Please see Figure 1 , Figure 2 , Figure 3 and Figure 5 The movable plate 8 is equipped with two limiting components. One of the limiting components includes an adjusting plate 15, which fits against the movable plate 8. Two electric push rods 16 are symmetrically fixed on the adjusting plate 15 and connected by a pressure plate 17. A screw 18 is rotatably installed on the adjusting plate 15 and screwed onto the movable plate 8. When the packaging bag is placed on the movable plate 8, the two limiting components perform limiting and pressing operations. Thus, the movement of the movable plate 8 completes the full spraying operation on the packaging bag, making the spraying effect more uniform and highly practical.

[0031] Please see Figure 5 The adjusting plate 15 is stabilized by a stabilizing component, which includes two limiting blocks 23. Two stabilizing slots are symmetrically opened on the moving plate 8. Limiting rods 24 are fixedly installed in both stabilizing slots. The two limiting blocks 23 are slidably connected to the two stabilizing slots and the two limiting rods 24. The setting of the two limiting blocks 23 and the two limiting rods 24 makes the adjusting plate 15 more stable when it moves.

[0032] Please see Figure 1-3 A protective cover 19 is fixedly installed at the bottom of the workbench 1. Both rotating shafts 12 are located inside the protective cover 19. The protective cover 19 protects the two rotating shafts 12 during operation.

[0033] Please see Figure 1-3 It should also be noted that two stabilizing rods 20 are symmetrically fixedly installed on the U-shaped plate 2, and the connecting plate 6 is slidably connected to the two stabilizing rods 20. The setting of the two stabilizing rods 20 makes the connecting plate 6 more stable when it moves.

[0034] Please see Figure 1-3 A stabilizing cylinder 21 is fixedly installed on the U-shaped plate 2. The electric cylinder 5 is slidably connected to the stabilizing cylinder 21. The stabilizing cylinder 21 makes the electric cylinder 5 more stable.

[0035] Please see Figure 1 , Figure 2 , Figure 3 and Figure 5 Both pressure plates 17 are equipped with anti-slip pads 25 at their bottom ends, which increases the friction.

[0036] In summary, when using this spraying device for producing plastic packaging bags, the required material for spraying is transferred to the spraying equipment 7 through the cooperation of two material tanks 3 and two connecting pipes 4. The packaging bag is placed on the moving plate 8. According to the size of the packaging bag, the two screws 18 are rotated, causing the two screws 18 to drive the two adjusting plates 15 to move. After the two adjusting plates 15 are adjusted to the appropriate position, multiple electric push rods 16 are activated, which drive the two pressure plates 17 to move. The two pressure plates 17 perform a pressing and limiting operation on the packaging bag. The electric cylinder 5 is activated, which drives the connecting plate 6 and the spraying equipment 7 to move. The spraying equipment 7 is moved to the appropriate position for spraying. The motor 11 is started. This motor is a commercially available device known to those skilled in the art. The equipment is designed for practical use only, without any structural or functional improvements. We will not elaborate further here. The motor is equipped with a matching control switch, the installation location of which is selected based on actual practical needs for easy operation. Powered by the motor 11, the two rotating shafts 12 rotate synchronously in opposite directions through the meshing of the two first gears 13. This, in turn, causes the two second gears 14 to rotate synchronously. The meshing of the two second gears 14 with the rack 9 causes the rack 9 to move, which in turn causes the moving plate 8 to move. The movement of the moving plate 8 completes the overall spraying of the packaging bag, resulting in a more uniform spraying effect and high practicality.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A spraying device for producing plastic packaging bags, comprising a workbench (1), characterized in that: A U-shaped plate (2) is fixedly installed on the workbench (1); A spraying mechanism is provided on the U-shaped plate (2). The spraying mechanism includes an electric cylinder (5). The electric cylinder (5) is fixedly installed on the U-shaped plate (2). Two material buckets (3) are symmetrically placed on the U-shaped plate (2). The bottom ends of the two material buckets (3) are connected by a connecting pipe (4). The bottom end of the electric cylinder (5) is fixedly installed with a connecting plate (6). The bottom end of the connecting plate (6) is provided with a spraying device (7). The two connecting pipes (4) pass through the connecting plate (6) and are connected to the spraying device (7). A moving mechanism is provided on the workbench (1). The moving mechanism includes a moving plate (8). The moving plate (8) is slidably connected to the workbench (1). A rack (9) is fixedly installed at the bottom end of the moving plate (8). A sliding groove is provided on the workbench (1). A sliding rod is fixedly installed on the sliding groove. The rack (9) is slidably connected to the sliding groove and the sliding rod. A mounting frame (10) is fixedly installed at the bottom end of the workbench (1). A motor (11) is fixedly installed on the mounting frame (10). Two rotating shafts (12) are symmetrically rotated on the workbench (1). The output end of the motor (11) is fixedly connected to one end of one of the rotating shafts (12). A first gear (13) is fixedly installed on both rotating shafts (12). The two first gears (13) mesh. A second gear (14) is fixedly installed on both rotating shafts (12). The two second gears (14) mesh with both sides of the rack (9). Two limiting components are provided on the movable plate (8), one of which includes an adjusting plate (15). The adjusting plate (15) is attached to the movable plate (8). Two electric push rods (16) are symmetrically fixed on the adjusting plate (15). The two electric push rods (16) are connected by a pressure plate (17). A screw (18) is rotatably installed on the adjusting plate (15). The screw (18) is screwed onto the movable plate (8). The regulating plate (15) is stabilized by the stabilizing components.

2. The spraying device for producing plastic packaging bags according to claim 1, characterized in that: The stabilizing component includes two limiting blocks (23), and two stabilizing slots are symmetrically opened on the moving plate (8). Limiting rods (24) are fixedly installed in both stabilizing slots. The two limiting blocks (23) are slidably connected to the two stabilizing slots and the two limiting rods (24).

3. The spraying device for producing plastic packaging bags according to claim 2, characterized in that: The bottom of the workbench (1) is fixedly equipped with a protective cover (19), and both rotating shafts (12) are located inside the protective cover (19).

4. The spraying device for producing plastic packaging bags according to claim 3, characterized in that: Two stabilizing rods (20) are symmetrically fixed on the U-shaped plate (2), and the connecting plate (6) is slidably connected to the two stabilizing rods (20).

5. The spraying device for producing plastic packaging bags according to claim 4, characterized in that: A stabilizing cylinder (21) is fixedly installed on the U-shaped plate (2), and the electric cylinder (5) is slidably connected to the stabilizing cylinder (21).

6. The spraying device for producing plastic packaging bags according to claim 5, characterized in that: The bottom ends of both pressure plates (17) are provided with anti-slip pads (25).