A device for flattening a vented plastic bag

Abstract

The utility model relates to the technical field of plastic bag production, and disclose a kind of levelling device of breathable plastic bag, including base, the top of base is fixedly installed with transmission rod, the outside of transmission rod is provided with conveyor belt, the side of base is fixedly installed with motor.The levelling device of breathable plastic bag, by being provided with levelling mechanism, by being provided with the cooperation work of telescopic pneumatic cylinder and levelling plate, so that plastic bag can be flatly shaped before being completely leveled, so that it will not exist warped foot, by being provided with the cooperation work of conveying mechanism, motor and transmission rod, so that conveyor belt can be conveyed, so that plastic bag can be assembly line moving, leveling work is carried out once, it is simple and convenient to operate, and time-saving, labor-saving and artificial, by being provided with the cooperation work of baffle and fixed plate, so that conveyor belt will not be seriously abraded when transmitting, to shorten the use cycle of conveyor belt, so that it will not appear extra work cost.

Description

Technical Field

[0001] This utility model relates to the field of plastic bag production technology, specifically a leveling device for breathable plastic bags. Background Technology

[0002] Breathable plastic bags are widely used in food packaging, agricultural product packaging, medical product packaging and other fields. These plastic bags usually have micropores punched on the surface to achieve the function of breathability. In the production process, the flattening process of these plastic bags faces special technical challenges.

[0003] Existing plastic bag production flattening devices can achieve better flattening of plastic bags and prevent air bubbles from remaining inside. However, when flattening, they are prone to folding and flattening corners, resulting in poor flattening effect. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a leveling device for breathable plastic bags, thereby solving the problems mentioned in the background section.

[0006] Two technical solutions

[0007] To achieve the above objectives, this utility model provides the following technical solution: a leveling device for breathable plastic bags, comprising a base, a transmission rod fixedly installed on the top of the base, a conveyor belt arranged on the outer side of the transmission rod, a motor fixedly installed on the side of the base, the output shaft of the motor fixedly connected to the transmission rod, a baffle one fixedly installed on one side of the top of the base, a baffle two fixedly installed on the other side of the top of the base, a fixing frame fixedly installed on the top of the baffle one and the baffle two, and an installation groove provided on the top of the fixing frame. A fan is fixedly installed in the slot. A gantry frame is fixedly installed on the top of the first and second baffles. A telescopic cylinder is fixedly installed on the top of the gantry frame. A flat plate is fixedly installed on the bottom of the telescopic cylinder. A pulley is fixedly installed on the side of the base away from the motor. One end of a belt is provided on the outside of the pulley, and a pulley is provided on the other end of the belt. A rotating rod is fixedly installed on the inside of the first baffle. The rotating rod passes through the first baffle and is fixedly connected to the pulley. A rotating rod is fixedly installed on the inside of the second baffle.

[0008] Preferably, leveling rollers are fixedly installed in the first and second rotating rods.

[0009] Preferably, a fixing plate is fixedly installed on the inner rear side of the first baffle and the second baffle, and a discharge port is provided at the bottom of the fixing plate.

[0010] Preferably, the top of the mounting bracket has four mounting slots, and four fans are fixedly installed in each of the four mounting slots.

[0011] Preferably, four support legs are fixedly installed at the four corners of the bottom of the base.

[0012] Preferably, a heating plate is fixedly installed at the bottom of the flat plate.

[0013] Compared with the prior art, this utility model provides a leveling device for breathable plastic bags, which has the following beneficial effects: This leveling device for breathable plastic bags, through the arrangement of a leveling mechanism, a telescopic cylinder, and a leveling plate, allows the plastic bag to be laid flat and shaped before complete leveling, preventing it from warping. The conveyor belt, motor, and transmission rod work together to transport the plastic bags in an assembly line manner, performing leveling in one operation. This is simple, convenient, time-saving, labor-saving, and convenient. Furthermore, the baffles and fixing plates prevent severe wear on the conveyor belt during transport, shortening its lifespan and eliminating unnecessary operating costs. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the flat plate structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the pulley structure of this utility model;

[0017] Figure 4 This is a top view structural diagram of the present invention.

[0018] In the diagram: 1. Base; 2. Transmission rod; 3. Conveyor belt; 4. Motor; 5. Baffle 1; 6. Baffle 2; 7. Fixing frame; 8. Mounting slot; 9. Fan; 10. Gantry frame; 11. Telescopic cylinder; 12. Leveling plate; 13. Heating plate; 14. Pulley 1; 15. Belt; 16. Pulley 2; 17. Rotating rod 1; 18. Rotating rod 2; 19. Leveling roller; 20. Fixing plate; 21. Discharge port; 22. Support leg. Detailed Implementation

[0019] 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.

[0020] like Figures 1-4 As shown, a leveling device for breathable plastic bags includes a base 1, a transmission rod 2 fixedly mounted on the top of the base 1, a conveyor belt 3 disposed on the outer side of the transmission rod 2, a motor 4 fixedly mounted on the side of the base 1, the output shaft of the motor 4 fixedly connected to the transmission rod 2, a baffle 5 fixedly mounted on one side of the top of the base 1, a baffle 6 fixedly mounted on the other side of the top of the base 1, a fixing frame 7 fixedly mounted on the top of the baffle 5 and the baffle 6, a mounting groove 8 provided on the top of the fixing frame 7, and a fan 9 fixedly mounted in the mounting groove 8. A gantry frame 10 is fixedly installed on the top of the baffle 2 6. A telescopic cylinder 11 is fixedly installed on the top of the gantry frame 10. A flat plate 12 is fixedly installed on the bottom of the telescopic cylinder 11. A pulley 14 is fixedly installed on the side of the base 1 away from the motor 4. One end of a belt 15 is provided on the outside of the pulley 14. A pulley 2 16 is provided on the other end of the belt 15. A rotating rod 17 is fixedly installed on the inside of the baffle 1 5. The rotating rod 17 passes through the baffle 1 5 and is fixedly connected to the pulley 2 16. A rotating rod 2 18 is fixedly installed on the inside of the baffle 2 6.

[0021] Furthermore, leveling rollers 19 are fixedly installed in rotating rod 17 and rotating rod 2 18.

[0022] The above technical solutions enhance structural stability, improve leveling accuracy, reduce mechanical vibration, and extend the lifespan of the equipment.

[0023] Furthermore, a fixing plate 20 is fixedly installed on the inner rear side of the first baffle 5 and the second baffle 6, and a discharge port 21 is provided at the bottom of the fixing plate 20.

[0024] Through the above technical solution, this design integrates two baffles into a whole module through the fixing plate 20, which enhances the structural stability and prevents the baffles from being displaced or deformed due to external forces. The discharge port 21 is set at the bottom of the fixing plate 20, and the material flow path is directly controlled by the supporting effect of the fixing plate 20.

[0025] Furthermore, the top of the mounting bracket 7 is provided with four mounting slots 8, and four fans 9 are fixedly installed in each of the four mounting slots 8.

[0026] With the above technical solution, the four mounting slots 8 are symmetrically arranged to ensure that the fan 9 evenly covers the entire leveling area and drives out the air bubbles in the plastic bag from multiple directions. The mounting slots 8 reduce the need for additional brackets or bolts, thereby reducing vibration noise and the risk of loosening.

[0027] Furthermore, four support legs 22 are fixedly installed at the four corners of the bottom of the base 1.

[0028] The above technical solutions form a stable support structure, ensuring the overall balance of the equipment, preventing overturning or shaking, and the weight of the equipment is evenly distributed among the four support points, reducing local stress concentration and extending the service life of the device.

[0029] Furthermore, a heating plate 13 is fixedly installed on the bottom of the flat plate 12.

[0030] With the above technical solution, the heating plate 13 is directly fixed to the bottom of the plate 12, and the heat transfer is fast and uniform through the metal contact surface, avoiding the heat loss problem of traditional external heating methods. The integrated design reduces additional brackets or connectors and reduces the risk of mechanical failure.

[0031] Working principle: First, the plastic bag to be leveled is placed on top of the conveyor belt 3. Then, the motor 4 is started. The output shaft of the motor 4 rotates, driving the transmission rod 2 to rotate, thereby starting the conveyor belt 3. When the plastic bag is conveyed to the bottom of the fixed frame 7 by the conveyor belt 3, the fans 9 in the mounting slot 8 are started. The four fans 9 start operating to remove air bubbles from the inside of the plastic bag. After the air bubbles are removed, the bag is continuously conveyed to the bottom of the gantry frame 10 by the conveyor belt 3. The top telescopic cylinder 11 descends, causing the leveling plate 12 to descend as well. At the same time, the heating plate 13 at the bottom of the leveling plate 12 starts working, heating the plastic bag while leveling it. After the initial leveling is completed, the bag is conveyed by the conveyor belt 3 to the leveling roller 19. When the motor 4 is started, the pulley 14, belt 15 and pulley 16 start to move, thereby driving the rotating rod 17 to rotate, which in turn drives the leveling roller 19 to rotate. The plastic bag is then leveled a second time by the leveling roller 19. After leveling, the plastic bag is discharged through the discharge port 21.

[0032] 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 leveling device for breathable plastic bags, comprising a base (1), characterized in that: A transmission rod (2) is fixedly installed on the top of the base (1). A conveyor belt (3) is provided on the outside of the transmission rod (2). A motor (4) is fixedly installed on the side of the base (1). The output shaft of the motor (4) is fixedly connected to the transmission rod (2). A baffle (5) is fixedly installed on one side of the top of the base (1). A baffle (6) is fixedly installed on the other side of the top of the base (1). A fixing frame (7) is fixedly installed on the top of the baffle (5) and the baffle (6). An installation groove (8) is opened on the top of the fixing frame (7). A fan (9) is fixedly installed in the installation groove (8). The top of the baffle (5) and the baffle (6) A gantry frame (10) is fixedly installed. A telescopic cylinder (11) is fixedly installed on the top of the gantry frame (10). A flat plate (12) is fixedly installed on the bottom of the telescopic cylinder (11). A pulley (14) is fixedly installed on the side of the base (1) away from the motor (4). One end of a belt (15) is provided on the outside of the pulley (14). A pulley (16) is provided on the other end of the belt (15). A rotating rod (17) is fixedly installed on the inside of the baffle (5). The rotating rod (17) passes through the baffle (5) and is fixedly connected to the pulley (16). A rotating rod (18) is fixedly installed on the inside of the baffle (6).

2. The leveling device for a breathable plastic bag according to claim 1, characterized in that: Leveling rollers (19) are fixedly installed in the first rotating rod (17) and the second rotating rod (18).

3. The leveling device for a breathable plastic bag according to claim 1, characterized in that: A fixing plate (20) is fixedly installed on the inner rear side of the first baffle (5) and the second baffle (6), and a discharge port (21) is provided at the bottom of the fixing plate (20).

4. The leveling device for a breathable plastic bag according to claim 1, characterized in that: The top of the mounting bracket (7) is provided with four mounting slots (8), and four fans (9) are fixedly installed in each of the four mounting slots (8).

5. The leveling device for a breathable plastic bag according to claim 1, characterized in that: The base (1) has four support legs (22) fixedly installed at the four corners of its bottom.

6. The leveling device for a breathable plastic bag according to claim 1, characterized in that: A heating plate (13) is fixedly installed on the bottom of the flat plate (12).

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