Solvent residue collection apparatus for food packaging materials

Abstract

The utility model discloses a solvent residue collection equipment for food packaging material, including the heat preservation shell, the outer surface fixed communication of heat preservation shell has the air inlet pipe, and the inboard wall of air inlet pipe is installed with the fan, and the bottom of heat preservation shell is fixedly connected with a plurality of heating pipes, and the upper surface of heat preservation shell is fixedly connected with the hydraulic push rod, and the output of hydraulic push rod is fixedly connected with the moving plate, and the outer surface of moving plate is inlayed with the bearing, and the inner ring fixed connection of bearing has the connecting rod. The device is heated to air through heating pipe, thereby accelerating the volatilization of solvent, and the moving plate is moved through the hydraulic push rod, thereby separating the connecting cylinder and the air outlet pipe, and the connecting rod and the rotating disc are driven to rotate through the servo motor, when the air outlet pipe is aligned with another connecting cylinder, the hydraulic push rod drives the moving plate to contract, thereby connecting another connecting cylinder with the air outlet pipe, the time of shutdown is shortened, and the first filter screen is in the outside world, and it is convenient to replace the first filter screen.

Description

Technical Field

[0001] This utility model relates to the field of environmental protection equipment technology, and in particular to a solvent residue collection device for food packaging materials. Background Technology

[0002] In the production process of plastic food packaging, ink is one of the main sources of residual solvents in plastic films. Commonly used solvents in printing inks include toluene, ethyl acetate, methyl ethyl ketone, isopropanol, xylene, etc. These solvents may not completely evaporate during the printing process, thus remaining in the packaging materials. These solvents can produce odors, affecting the taste and flavor of food. Moreover, most solvents are toxic and carcinogenic. Long-term consumption of food containing high levels of solvent residues can harm consumers' health.

[0003] Currently, when dealing with residual solvents, packaging materials are typically heated to accelerate solvent evaporation. The evaporated solvent then needs to be filtered to prevent environmental pollution. During the waste gas treatment process, the filter screens need to be replaced frequently, which takes a long time and leads to extended downtime. To address these issues, we propose a solvent residue collection device for food packaging materials. Utility Model Content

[0004] The purpose of this invention is to provide a solvent residue collection device for food packaging materials to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A solvent residue collection device for food packaging materials includes an insulated shell, an air inlet pipe fixedly connected to the outer surface of the insulated shell, a fan installed on the inner wall of the air inlet pipe, multiple heating tubes fixedly connected to the bottom surface of the insulated shell, a hydraulic push rod fixedly connected to the upper surface of the insulated shell, a movable plate fixedly connected to the output end of the hydraulic push rod, a bearing embedded in the outer surface of the movable plate, a connecting rod fixedly connected to the inner ring of the bearing, a turntable fixedly connected to the outer surface of the connecting rod, a servo motor fixedly connected to the outer surface of the movable plate, the output end of the servo motor connected to the outer surface of the connecting rod, two connecting cylinders fixedly connected to the outer surface of the turntable, a first filter screen installed inside each connecting cylinder, and an air outlet pipe fixedly connected to the outer surface of the insulated shell.

[0007] In a further embodiment, a first elastic pad is fixedly connected to the outer surface of the air outlet pipe, and a second elastic pad is fixedly connected to the outer surface of each connecting cylinder.

[0008] In a further embodiment, two positioning magnetic blocks are fixedly connected to the outer surface of the turntable, and a Hall sensor is fixedly connected to the outer surface of the moving plate.

[0009] In a further embodiment, a temperature sensor is fixedly connected to the inner top wall of the insulation shell, and a thermometer is fixedly connected to the upper surface of the insulation shell.

[0010] In a further embodiment, two support frames are fixedly connected to the outer surface of the insulation shell. The upper surface of each support frame and the upper surface of the insulation shell are jointly fixedly connected to two slide rails. A slider is slidably connected to the outer surface of each slide rail, and the outer surface of each slider is connected to the outer surface of the moving plate.

[0011] In a further embodiment, an isolation net is fixedly connected to the inner bottom wall of the insulation shell, a protective net shell is fixedly connected to the outer surface of the air inlet pipe, and a second filter screen is installed on the inner side wall of the air inlet pipe.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This device heats the air through a heating tube to accelerate solvent evaporation. A hydraulic push rod moves a moving plate to separate the connecting cylinder from the air outlet pipe. A servo motor drives the connecting rod and turntable to rotate. When the air outlet pipe aligns with another connecting cylinder, the hydraulic push rod causes the moving plate to retract, thus connecting the other connecting cylinder to the air outlet pipe. This reduces downtime, and the first filter is located in the outside, making it easy to replace. Attached Figure Description

[0014] Figure 1 This is a front-view three-dimensional structural diagram of a solvent residue collection device for food packaging materials.

[0015] Figure 2 This is a front-view cross-sectional structural diagram of a solvent residue collection device used in food packaging materials.

[0016] Figure 3 This is a three-dimensional structural diagram from a rear view of a solvent residue collection device used in food packaging materials.

[0017] Figure 4 This is a top-view cross-sectional diagram of a solvent residue collection device used in food packaging materials.

[0018] In the diagram: 1. Insulation shell; 2. Air inlet duct; 3. Fan; 4. Heating element; 5. Hydraulic push rod; 6. Moving plate; 7. Connecting rod; 8. Bearing; 9. Servo motor; 10. Connecting cylinder; 11. First filter screen; 12. Air outlet duct; 13. First elastic pad; 14. Second elastic pad; 15. Positioning magnetic block; 16. Hall sensor; 17. Temperature sensor; 18. Thermometer; 19. Isolation net; 20. Protective mesh shell; 21. Second filter screen; 22. Support frame; 23. Slide rail; 24. Slider; 25. Turntable. 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] Please see Figure 1-4 In this utility model, a solvent residue collection device for food packaging materials includes an insulation shell 1. An air inlet pipe 2 is fixedly connected to the outer surface of the insulation shell 1. A fan 3 is installed on the inner wall of the air inlet pipe 2. Multiple heating tubes 4 are fixedly connected to the bottom surface of the insulation shell 1. A hydraulic push rod 5 is fixedly connected to the upper surface of the insulation shell 1. A movable plate 6 is fixedly connected to the output end of the hydraulic push rod 5. A bearing 8 is embedded in the outer surface of the movable plate 6. A connecting rod 7 is fixedly connected to the inner ring of the bearing 8. A turntable 25 is fixedly connected to the outer surface of the connecting rod 7. The outer surface of the movable plate 6 is fixedly connected to... There is a servo motor 9, the output end of which is connected to the outer surface of the connecting rod 7. Two connecting cylinders 10 are fixedly connected to the outer surface of the turntable 25. Each connecting cylinder 10 has a first filter screen 11 installed inside. The outer surface of the insulation shell 1 is fixedly connected to the air outlet pipe 12. The moving plate 6 is moved by the hydraulic push rod 5, which can realize the connection and disconnection between the air outlet pipe 12 and the connecting cylinder 10. The connecting rod 7 and the turntable 25 are rotated by the servo motor 9, which can change the position of the connecting cylinder 10, making it convenient to replace the filter screen and shortening the downtime.

[0021] A first elastic pad 13 is fixedly connected to the outer surface of the air outlet duct 12, and a second elastic pad 14 is fixedly connected to the outer surface of each connecting cylinder 10. Two positioning magnetic blocks 15 are fixedly connected to the outer surface of the turntable 25. A Hall sensor 16 is fixedly connected to the outer surface of the moving plate 6. A temperature sensor 17 is fixedly connected to the inner top wall of the insulation shell 1, and a thermometer 18 is fixedly connected to the upper surface of the insulation shell 1. Through the mutual contact between the first elastic pad 13 and the second elastic pad 14, the gap between the air outlet duct 12 and the connecting cylinder 10 can be reduced. After the Hall sensor 16 senses the positioning magnetic block 15, it sends a signal to control the servo motor 9 to stop rotating, which can quickly align the air outlet duct 12 and the connecting cylinder 10.

[0022] Two support frames 22 are fixedly connected to the outer surface of the insulation shell 1. The upper surface of each support frame 22 and the upper surface of the insulation shell 1 are jointly fixedly connected to two slide rails 23. The outer surface of each slide rail 23 is slidably connected to a slider 24. The outer surface of each slider 24 is connected to the outer surface of the moving plate 6. An isolation net 19 is fixedly connected to the inner bottom wall of the insulation shell 1. A protective net shell 20 is fixedly connected to the outer surface of the air inlet pipe 2. A second filter 21 is installed on the inner side wall of the air inlet pipe 2. By setting the slide rails 23 and sliders 24, the moving plate 6 can be supported, reducing the load on the output end of the hydraulic push rod 5. By setting the second filter 21, large particles in the air can be filtered out.

[0023] The working principle of this utility model is as follows:

[0024] When using this device, the food packaging material is placed inside the insulation shell 1, the heating tube 4 is turned on to heat the air and accelerate the evaporation of the solvent, and the fan 3 is turned on to drive the air flow, blowing the evaporated air towards the first filter screen 11 for filtration. After the first filter screen 11 has been used for a period of time, the hydraulic push rod 5 is turned on to move the moving plate 6, separating the connecting cylinder 10 from the air outlet pipe 12. The servo motor 9 is turned on to drive the connecting rod 7 and the turntable 25 to rotate. After the Hall sensor 16 senses the positioning magnetic block 15, it sends a signal to control the servo motor 9 to stop rotating and cause the hydraulic push rod 5 to drive the moving plate 6 to retract, thereby connecting the other connecting cylinder 10 to the air outlet pipe 12, which facilitates the replacement of the first filter screen 11.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A solvent residue collection device for food packaging materials, characterized in that: The device includes an insulation shell (1), an air inlet pipe (2) fixedly connected to the outer surface of the insulation shell (1), a fan (3) installed on the inner wall of the air inlet pipe (2), multiple heating tubes (4) fixedly connected to the bottom surface of the insulation shell (1), a hydraulic push rod (5) fixedly connected to the upper surface of the insulation shell (1), a moving plate (6) fixedly connected to the output end of the hydraulic push rod (5), a bearing (8) embedded in the outer surface of the moving plate (6), a connecting rod (7) fixedly connected to the inner ring of the bearing (8), a turntable (25) fixedly connected to the outer surface of the connecting rod (7), a servo motor (9) fixedly connected to the outer surface of the moving plate (6), the output end of the servo motor (9) connected to the outer surface of the connecting rod (7), two connecting cylinders (10) fixedly connected to the outer surface of the turntable (25), a first filter screen (11) installed inside each connecting cylinder (10), and an air outlet pipe (12) fixedly connected to the outer surface of the insulation shell (1).

2. The solvent residue collection device for food packaging materials according to claim 1, characterized in that: The outer surface of the air outlet pipe (12) is fixedly connected to a first elastic pad (13), and the outer surface of each connecting cylinder (10) is fixedly connected to a second elastic pad (14).

3. The solvent residue collection device for food packaging materials according to claim 1, characterized in that: Two positioning magnetic blocks (15) are fixedly connected to the outer surface of the turntable (25), and a Hall sensor (16) is fixedly connected to the outer surface of the moving plate (6).

4. The solvent residue collection device for food packaging materials according to claim 1, characterized in that: A temperature sensor (17) is fixedly connected to the inner top wall of the insulation shell (1), and a thermometer (18) is fixedly connected to the upper surface of the insulation shell (1).

5. The solvent residue collection device for food packaging materials according to claim 1, characterized in that: Two support frames (22) are fixedly connected to the outer surface of the heat insulation shell (1). The upper surface of each support frame (22) and the upper surface of the heat insulation shell (1) are fixedly connected to two slide rails (23). The outer surface of each slide rail (23) is slidably connected to a slider (24). The outer surface of each slider (24) is connected to the outer surface of the moving plate (6).

6. The solvent residue collection device for food packaging materials according to claim 1, characterized in that: An isolation net (19) is fixedly connected to the inner bottom wall of the heat insulation shell (1), a protective net shell (20) is fixedly connected to the outer surface of the air inlet pipe (2), and a second filter (21) is installed on the inner side wall of the air inlet pipe (2).

Images