Automatic lining film laminating equipment for turnover box
By combining the blower and the inflation nozzle with the lifting sealing plate and the drainage hole, the Bernoulli principle is used to achieve automated film lamination, which solves the problem of difficult manual operation of turnover box film lamination and improves the automation and energy-saving performance of the equipment.
Patent Information
- Application Number
- CN202520762876.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-04-22
AI Technical Summary
In existing technologies, the lamination of turnover box linings relies on manual operation, which makes it difficult to operate large-sized turnover boxes, inefficient, and prone to uneven lamination or detachment.
The system employs a blower and an inflation nozzle working in tandem, utilizing Bernoulli's principle to achieve automated membrane bonding through a lifting sealing plate and drainage holes. It also incorporates a Venturi nozzle to improve inflation efficiency and uses sensors and positioning mechanisms to enhance the automation level of the equipment.
It achieves fully automated film lamination without manual operation, improves work efficiency, avoids uneven lamination caused by manual operation, and enhances the automation and energy-saving performance of the equipment.
Smart Images

Figure CN223949551U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the field of logistics transport equipment, especially, relate to a turnover box automatic lining film laminating equipment. BACKGROUND
[0002] In logistics transportation, packaging storage and industrial production, turnover boxes as standardized containers need to be used frequently. In order to prevent the goods in the box from being damaged due to vibration, friction or damp, a protective lining film usually needs to be laminated on the inside of the box. The current industry generally adopts manual lining film laminating process, and the specific process is as follows: the worker manually unfolds the lining film to cover the opening of the turnover box, uses a metal support rod or similar tool to press the lining film into the bottom of the box, then props up the edge of the lining film and laminates it to the inner wall, which needs to be adjusted repeatedly to avoid wrinkles or slack.
[0003] In the prior art, the lining film laminated in the turnover box completely depends on manual operation, and the worker needs to maintain high-intensity physical labor for a long time. Especially when large-size turnover boxes or high-density production requirements are encountered, the efficiency may suddenly decrease and the operation failure rate may increase. Due to the difference in the proficiency of the operator, the lining film may be partially laminated loosely or stretched excessively, resulting in the phenomenon of lining film falling off or breaking during transportation. UTILITY MODEL CONTENTS
[0004] Therefore, the utility model aims at providing a turnover box automatic lining film laminating equipment to solve the problems of difficulty in lining film operation by a support rod for a large-size turnover box and difficulty in realizing automatic lining film lamination in the prior art.
[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a turnover box automatic lining film laminating equipment, which comprises a blower, an inflation nozzle, a lifting sealing plate and a drainage hole, a through hole is arranged on the lifting sealing plate, the top surface of the lifting sealing plate is provided with the blower, and the bottom surface is provided with the inflation nozzle, the inflation nozzle is connected with the blower through the through hole, the blower is connected with the ground through a rack, the lifting sealing plate is connected with the rack through a lifting mechanism, the lifting sealing plate is provided with the drainage hole, and a turnover box with a preliminary lining film is arranged below the lifting sealing plate.
[0006] Further, a turnover box conveyor is arranged at the bottom of the turnover box with the preliminary lining film, and a positioning mechanism is arranged on the turnover box conveyor.
[0007] Further, the positioning mechanism comprises a cylinder and positioning forks, the output end of the cylinder is connected with the positioning forks, the positioning forks are four, and the four positioning forks are arranged at the four corners of the turnover box with the preliminary lining film.
[0008] Further, the bottom surface of the lifting sealing plate is made of soft sealing material.
[0009] Further, one side of the drainage hole is hinged with the drainage hole cover plate, and the drainage hole is two, and the two drainage holes are symmetrically arranged on the two sides of the connection between the blower and the lifting sealing plate.
[0010] Further, the lifting mechanism, the drainage hole cover plate and the positioning mechanism are connected with the sensor.
[0011] Further, the air inflation nozzle adopts a Venturi nozzle, the Venturi nozzle comprises an inlet pipe, a throat and an outlet pipe, and the blower is connected with the inlet pipe of the Venturi nozzle.
[0012] Further, the ratio of the diameter of the inlet pipe to the diameter of the throat is 3:1-5:1, the contraction angle of the inlet pipe to the throat is 19°-23°, and the diffusion section angle of the throat to the outlet pipe is 7°-12°.
[0013] Further, the blower and the turnover box conveyor are connected with the motor.
[0014] Further, the soft sealing material is sponge material or rubber material.
[0015] Compared with the prior art, the utility model has the advantages that:
[0016] 1. The utility model discloses a blower and an air inflation nozzle cooperate, completely replace traditional manual pole operating mode, through the blower and the air inflation nozzle can be inflated to the turnover box cavity, make the lining film complete and adhere to the inner wall of the turnover box, the whole operation does not need manual force intervention, obviously reduce the labor intensity of the worker, and the problem that uneven adhesion caused by manual operation is avoided.
[0017] 2. The utility model discloses an air inflation nozzle adopts a Venturi nozzle, and the air inflation efficiency is greatly improved through the design of the Venturi nozzle, and the Venturi nozzle is more energy-saving than the traditional nozzle.
[0018] 3. The utility model discloses a sensor and lifting mechanism, positioning structure and drainage hole cover plate are combined, and the automation degree of equipment use is improved.
[0019] 4. The utility model discloses guarantee lining film covering integrity, realize protective lining film adhesion process from manual operation to the upgrading of standardization, full-automatic mode. DRAWINGS
[0020] The drawings that constitute a part of the utility model are used to provide further understanding on the utility model, and the illustrative embodiment of the utility model and its explanation are used to explain the utility model, and do not constitute improper limitation on the utility model. In the drawings:
[0021] Figure 1 A shaft side structure schematic view of the automatic film lining and attaching equipment for turnover boxes according to the utility model;
[0022] Figure 2 A front structure schematic view of the automatic film lining and attaching equipment for turnover boxes according to the utility model;
[0023] Figure 3 A side structure schematic view of the automatic film lining and attaching equipment for turnover boxes according to the utility model;
[0024] Figure 4 A bottom structure schematic view of the automatic film lining and attaching equipment for turnover boxes according to the utility model;
[0025] Figure 5 A structure schematic view of the inflation nozzle of the automatic film lining and attaching equipment for turnover boxes according to the utility model.
[0026] In the drawings:
[0027] 1, air blower; 2, inflation nozzle; 3, lifting sealing plate; 4, drainage hole; 5, lifting mechanism; 6, turnover box conveyor; 7, turnover box with preliminary film lining; 8, positioning fork; 9, drainage hole cover plate; 10, rack; 11, inlet pipeline; 12, throat; 13, outlet pipeline. DETAILED DESCRIPTION
[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict, and the described embodiments are only part of the embodiments of the utility model, not all the embodiments.
[0029] DETAILED DESCRIPTION: see Figures 1-4To achieve the above objectives, this utility model adopts the following technical solution: an automatic film-lining bonding device for turnover boxes, comprising a blower 1, an inflation nozzle 2, a lifting sealing plate 3, and a drainage hole 4. The lifting sealing plate 3 has a through hole. The blower 1 is mounted on the top surface of the lifting sealing plate 3, and the inflation nozzle 2 is mounted on the bottom surface. In practical applications, the blower 1 can be fixed above the lifting sealing plate 3 by a bracket. The blower 1 is connected to the inflation nozzle 2 via a connecting pipe. Alternatively, the blower 1 can be directly mounted on the lifting sealing plate 3 and directly connected to the inflation nozzle 2. In this embodiment, the inflation nozzle 2 is connected to the blower 1 via a connecting pipe. The blower 1 provides airflow, and the inflation nozzle 2 guides the airflow. Inside the initial liner box 7, the blower 1 is connected to the ground via the frame 10, and the lifting sealing plate 3 is connected to the frame 10 via the lifting mechanism 5. The frame 10 serves as the support structure for the equipment, ensuring its stability. The lifting mechanism 5 can lift the lifting sealing plate 3. When the lifting sealing plate 3 is lowered, its lower surface presses the liner to the opening of the liner box 7, thus pressing the liner to the liner and forming a closed cavity between the lifting sealing plate 3 and the liner. The lifting sealing plate 3 is provided with a drainage hole 4. When the inflation nozzle 2 is activated, the drainage hole 4 drains the surrounding air according to Bernoulli's principle, thereby accelerating the inflation process of the film bag. The initial liner box 7 is located below the lifting sealing plate 3.
[0030] The working principle of this utility model is as follows:
[0031] After the initial liner of the turnover box 7 arrives at the work station, the drainage hole 4 opens, and the lifting sealing plate 3 is lowered by the lifting mechanism 5. The lifting sealing plate 3 presses the liner to the opening of the turnover box, forming a closed cavity between the lifting sealing plate 3 and the liner. The blower 1 starts and blows high-speed airflow into the liner through the inflation nozzle 2. According to Bernoulli's principle, the high-speed airflow at the inflation nozzle 2 will cause the air pressure at the center of the liner to decrease. The surrounding air will then flow quickly into the inside of the film bag through the drainage hole 4 under the action of the pressure difference. Then the drainage hole 4 is closed, and the blower 1 remains on, allowing the airflow to further fill the internal space of the film bag, ensuring that the film bag is fully inflated and adheres to the inner wall of the turnover box. This application utilizes Bernoulli's principle to achieve initial and rapid inflation of the film bag through the drainage hole 4, avoiding the problems of low efficiency and slow inflation caused by relying entirely on the blower 1 for inflation, which affects work efficiency.
[0032] The bottom of the turnover box 7 for the initial film lining is provided with a turnover box conveyor 6, and a positioning mechanism is provided on the turnover box conveyor 6. The turnover box 7 for the initial film lining is transported to the designated work station by the turnover box conveyor 6, and the turnover box 7 for the initial film lining is fixed by the positioning mechanism.
[0033] The positioning mechanism comprises a cylinder and positioning forks 8, the output end of the cylinder is connected with the positioning forks 8, the positioning forks 8 are four, the four positioning forks 8 are arranged at four corners of the turnover box 7 of the preliminary lining film, when the turnover box 7 of the preliminary lining film reaches the designated station, the cylinder acts, the positioning forks 8 of the output end of the cylinder push and fix the turnover box 7 of the preliminary lining film in the predetermined position, which is convenient for subsequent lining film operation.
[0034] The bottom surface of the lifting sealing plate 3 is made of soft sealing material, which can be sponge material or rubber material.
[0035] One side of the drainage hole 4 is hinged with the drainage hole cover plate 9, the drainage hole 4 is two, the two drainage holes 4 are symmetrically arranged at the two sides of the connection between the air blower 1 and the lifting sealing plate 3, the symmetrical drainage holes 4 are convenient for balancing the airflow, so as to more effectively guide the film fitting.
[0036] The lifting mechanism 5, the drainage hole cover plate 9 and the positioning mechanism are connected with the sensor, so as to realize the control of high automation and intelligence, the sensor is not limited to the travel switch, the limit switch, the photoelectric switch, the proximity switch, the ultrasonic sensor, the laser sensor, the visual sensor and the camera, the automatic lining film processing of the turnover box is realized through the sensor combined with the related algorithm and software.
[0037] The air inflation nozzle 2 adopts a Venturi nozzle, the Venturi nozzle comprises an inlet pipe 11, a throat 12 and an outlet pipe 13, the air blower 1 is connected with the inlet pipe 11 of the Venturi nozzle, the airflow generated by the air blower 1 is discharged into the lining film from the inlet pipe 11, the throat 12 and finally the outlet pipe 13, the flow rate and pressure distribution of the airflow can be effectively controlled by selecting the Venturi nozzle, so as to realize a more efficient lining film fitting effect.
[0038] The ratio of the diameter of the inlet pipe 11 to the diameter of the throat 12 is 3:1-5:1, preferably 4:1, which ensures that the airflow is sufficiently contracted before entering the throat 12, so as to generate a significant negative pressure effect in the throat 12, the contraction angle of the inlet pipe 11 to the throat 12 is 19°-23°, so as to ensure the contraction speed and uniformity of the airflow from the inlet pipe 11 to the throat 12, the diffusion section angle of the throat 12 to the outlet pipe 13 is 7°-12°, preferably 10°, so as to ensure the diffusion speed and uniformity of the airflow from the throat 12 to the outlet pipe 13, the inflation rate of the Venturi nozzle is 5 times faster than that of the ordinary nozzle, so as to achieve the effects of energy saving and high efficiency.
[0039] The air blower 1 and the turnover box conveyor 6 are connected with the motor, the airflow generation and the turnover box conveying process of the automatic lining film fitting equipment can be accurately controlled by the motor driving, which further improves the automation degree and operation efficiency of the equipment.
[0040] The soft sealing material is sponge material or rubber material, so as to adapt to the joints of different shapes and sizes and ensure the sealing effect.
[0041] The use method of the utility model is as follows:
[0042] S1: the preliminary film lining of the turnover box is carried out, the preliminary film lining refers to the bag opening of the prefabricated film is sleeved on the box opening of the turnover box, the preliminary film lining turnover box 7 is conveyed to the operation station to be operated by the turnover box conveyor 6, the positioning mechanism fixes the preliminary film lining turnover box 7, the drainage hole 4 on the lifting sealing plate 3 is opened, the lifting sealing plate 3 is lowered, until the lower surface of the lifting sealing plate 3 is pressed tightly with the box opening of the preliminary film lining turnover box 7, at this time, the lifting sealing plate 3 is pressed tightly with the film and the turnover box, and the closed cavity is formed between the lifting sealing plate 3 and the film;
[0043] S2: the air blower 1 is opened, air is blown into the fixed film bag through the inflation nozzle 2, according to Bernoulli's principle, the high-speed airflow at the inflation nozzle 2 will cause the air pressure to be reduced at the center of the film bag, and a large amount of air around will flow into the film bag through the drainage hole 4 under the action of the pressure difference;
[0044] S3: the drainage hole 4 on the lifting sealing plate 3 is closed, air is continuously blown through the air blower 1, and the inflation nozzle 2 is kept open, until the film bag in the preliminary film lining turnover box 7 is attached to the inner wall of the turnover box;
[0045] S4: the air blower 1 is closed, the lifting sealing plate 3 is lifted, the turnover box with completed film is obtained, the fixed turnover box is loosened by the positioning mechanism, and the turnover box is transferred to the next process by the turnover box conveyor 6.
[0046] The above disclosed specific embodiments of the utility model are only used to help explain the utility model. The specific embodiments do not describe all the details, and the utility model is not limited to the specific embodiments. According to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the utility model, so that the person skilled in the art can well understand and utilize the utility model.
Claims
1. A pallet auto-liner application apparatus, characterized by: It includes air blower (1), air injection nozzle (2), lifting sealing plate (3) and drainage hole (4), the lifting sealing plate (3) is provided with through hole, the lifting sealing plate (3) top surface is provided with air blower (1), bottom surface is provided with air injection nozzle (2), air injection nozzle (2) is connected with air blower (1) through through hole, air blower (1) is connected with ground through rack (10), lifting sealing plate (3) is connected with rack (10) through lifting mechanism (5), lifting sealing plate (3) is provided with drainage hole (4), and the bottom of lifting sealing plate (3) is provided with the turnover box (7) of preliminary lining film.
2. The automatic film-lining pasting equipment for turnover boxes according to claim 1, characterized in that: The bottom of the turnover box (7) of preliminary lining film is provided with turnover box conveyor (6), and the turnover box conveyor (6) is provided with positioning mechanism.
3. The automatic film-lining pasting equipment for turnover boxes according to claim 2, characterized in that: The positioning mechanism includes air cylinder and positioning fork (8), the output end of the air cylinder is connected with the positioning fork (8), the positioning fork (8) is four, and the four positioning forks (8) are arranged at the four corners of the turnover box (7) of preliminary lining film.
4. The automatic film-lining pasting device for a turnover box according to claim 1, characterized in that: The bottom surface of the lifting sealing plate (3) is made of soft sealing material.
5. The automatic film-lining pasting device for a turnover box according to claim 1, characterized in that: One side of the drainage hole (4) is hinged with the drainage hole cover plate (9), the drainage hole (4) is two, and the two drainage holes (4) are symmetrically arranged at the two sides of the connection between the air blower (1) and the lifting sealing plate (3).
6. An automatic film-lining pasting device for a turnover box according to claim 5, characterized in that: The lifting mechanism (5), the drainage hole cover plate (9) and the positioning mechanism are connected with the sensor.
7. The automatic film-lining pasting device for a turnover box according to claim 1, characterized in that: The air injection nozzle (2) adopts venturi nozzle, the venturi nozzle includes inlet pipe (11), throat (12) and outlet pipe (13), and the air blower (1) is connected with the inlet pipe (11) of venturi nozzle.
8. The automatic film-lining pasting device for a turnover box according to claim 7, characterized in that: The ratio of the diameter of the inlet pipe (11) to the diameter of the throat (12) is 3:1-5:1, the contraction angle of the inlet pipe (11) to the throat (12) is 19°-23°, and the diffusion section angle of the throat (12) to the outlet pipe (13) is 7°-12°.
9. The automatic film-lining pasting device for a turnover box according to claim 2, characterized in that: The air blower (1) and the turnover box conveyor (6) are connected with the motor.
10. The automatic film-lining pasting device for a turnover box according to claim 4, characterized in that: The soft sealing material is sponge material or rubber material.