Non-woven shoe cover extrusion packaging machine

Abstract

This utility model discloses a non-woven shoe cover extrusion packaging machine, including a protective box. An extruder body is located on one side of the protective box. A top plate is installed on the top of the protective box, and a hydraulic lifting mechanism is located at the bottom of the protective box. Adsorption structures are installed on one side of both the hydraulic lifting mechanism and the top plate. An auxiliary support structure is installed at one end of the hydraulic lifting mechanism, and one end of each of the two adsorption structures is connected to a suction structure. The hydraulic lifting mechanism includes hydraulic cylinders fixed to both sides of the lower end of the protective box, and a base plate is fixed to the piston rods of both hydraulic cylinders. This utility model not only solves the surface problem of "residual dust affecting quality," but also achieves a dust removal rate of over 95% with double-sided, multi-point array adsorption, significantly outperforming traditional single-point exhaust solutions. It also eliminates secondary pollution, reduces pollution to the surrounding space, improves product quality, and enhances product stability.

Description

Technical Field

[0001] This utility model relates to the field of non-woven shoe cover extrusion packaging technology, and in particular to a non-woven shoe cover extrusion packaging machine. Background Technology

[0002] In the production of modern medical protective equipment and disposable hygiene products, non-woven shoe covers are widely used in hospitals, cleanrooms, laboratories, food processing, and other industries due to their advantages such as being lightweight, waterproof, dustproof, and low-cost. However, in the critical end-stage of their automated production lines—the extrusion packaging process—a long-standing technical challenge has seriously affected product quality and the working environment: residual dust, fiber shavings, and electrostatically adsorbed particles generated during processing are difficult to remove effectively. These contaminants mainly originate from the following aspects: The loose fibers of the non-woven fabric itself; the fine debris generated during cutting or hot pressing; the metal dust or plastic particles generated by friction during equipment operation; and the secondary dust caused by airflow disturbances—if not removed in time, these impurities will be sealed inside the finished product during the extrusion packaging stage, leading to a decrease in product cleanliness. Therefore, we have proposed a non-woven shoe cover extrusion packaging machine to solve the above problems. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a non-woven shoe cover compression packaging machine.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A non-woven shoe cover extrusion packaging machine includes a protective box. The extruder body is located on one side of the protective box. A top plate is installed on the top of the protective box. A hydraulic lifting mechanism is located at the bottom of the protective box. An adsorption structure is installed on one side of both the hydraulic lifting mechanism and the top plate. An auxiliary support structure is installed at one end of the hydraulic lifting mechanism. One end of the two adsorption structures is connected to an air suction structure. The hydraulic lifting mechanism includes hydraulic cylinders fixed on both sides of the lower end inside the protective box, and the piston rods of the two hydraulic cylinders are jointly fixed to a base plate. The auxiliary support structure includes a fixed plate fixed to one side of the base plate, a support frame fixed to the upper side of the fixed plate, and an auxiliary roller rotatably connected to the upper end of the support frame.

[0005] Preferably, the adsorption structure includes a fixed tube fixed to one side of the bottom plate and the top plate, and multiple suction hoods are installed at equal intervals on opposite sides of the two fixed tubes.

[0006] Preferably, the air intake structure includes a second air intake pipe and a first air intake pipe respectively connected to one side of the two fixed pipes. One end of the second air intake pipe and the first air intake pipe are connected to a connecting box. One side of the connecting box is connected to a connecting pipe. An exhaust fan is installed on one side of the upper end of the protective box. One end of the connecting pipe is connected to the exhaust fan. Valves are installed on both the first air intake pipe and the second air intake pipe.

[0007] Preferably, a filter pipe is installed on one side of the upper end of the extruder body, and one end of the exhaust fan is connected to the filter pipe.

[0008] Preferably, the protective box has openings on both sides, one of which is connected to the extruder body.

[0009] Preferably, four support rollers are rotatably connected between the opposite side walls inside the protective box, with two support rollers on the same side forming a group.

[0010] This utility model has the following advantages: 1. The double-sided, multi-point array adsorption and inclined airflow design can achieve a dust removal rate of over 95%, which is significantly better than the traditional single-point exhaust solution. 2. The entire dust removal process is enclosed, eliminating secondary pollution and reducing pollution to the surrounding space; 3. Reduce dust accumulation, lower the risk of motor overload and circuit failure, and enhance the reliability of equipment operation; 4. Improve product quality and enhance product stability; In summary, this invention not only solves the surface problem of "residual dust affecting quality," but also achieves a dust removal rate of over 95% with double-sided, multi-point array adsorption, which is significantly better than traditional single-point exhaust solutions. At the same time, it eliminates secondary pollution, reduces pollution to the surrounding space, improves product quality, and enhances product stability. Attached Figure Description

[0011] Figure 1 This is a structural diagram of the internal structure of the protective box of this utility model; Figure 2 This is a diagram of the nonwoven fabric conveying structure of this utility model; Figure 3 This is a structural diagram of the protective box of this utility model.

[0012] In the diagram: 1. Exhaust fan, 2. Connecting pipe, 3. Connecting box, 4. First suction pipe, 5. Valve, 6. Second suction pipe, 7. Top plate, 8. Auxiliary roller, 9. Suction hood, 10. Fixing plate, 11. Support roller, 12. Support frame, 13. Bottom plate, 14. Hydraulic cylinder, 15. Fixing pipe, 16. Extruder body, 17. Protective box, 18. Opening, 19. Filter pipe. Detailed Implementation

[0013] 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.

[0014] Reference Figure 1-3 The non-woven shoe cover extrusion packaging machine includes a protective box 17. The extruder body 16 is provided on one side of the protective box 17. A top plate 7 is installed on the top inside the protective box 17. A hydraulic lifting mechanism is provided at the bottom inside the protective box 17. An adsorption structure is installed on one side of both the hydraulic lifting mechanism and the top plate 7. An auxiliary support structure is installed at one end of the hydraulic lifting mechanism. An air suction structure is connected to one end of both adsorption structures. The hydraulic lifting mechanism includes hydraulic cylinders 14 fixed on both sides of the lower end inside the protective box 17. The piston rods of the two hydraulic cylinders 14 are fixed together to a base plate 13. When a fabric breakage, jamming, or emergency stop signal is detected, the hydraulic system can quickly depressurize and fall back within 1.2 seconds, and the auxiliary roller 8 will drop to a safe low position. The auxiliary support structure includes a fixed plate 10 fixed to one side of the base plate 13, a support frame 12 fixed to one side of the upper end of the fixed plate 10, and an auxiliary roller 8 rotatably connected to the upper end of the support frame 12. The 15°–30° tilt angle formed by the lifting of the auxiliary roller 8 is conducive to airflow dust removal. The auxiliary roller 8 is equipped with rubber shock-absorbing pads to effectively isolate high-frequency mechanical vibrations from being transmitted to the fabric surface, ensuring stable dust adsorption even at high speeds (up to 80m / min). The adsorption structure includes a fixed tube 15 fixed to one side of the bottom plate 13 and the top plate 7. Multiple suction hoods 9 are installed at equal intervals on opposite sides of the two fixed tubes 15. The edges of the suction hoods 9 are rounded to avoid non-woven fabric. The suction structure includes a second suction pipe 6 and a first suction pipe 4 connected to one side of two fixed pipes 15 respectively. One end of the second suction pipe 6 and the first suction pipe 4 are connected to a connecting box 3. One side of the connecting box 3 is connected to a connecting pipe 2. An exhaust fan 1 is installed on one side of the upper end of the protective box 17. One end of the connecting pipe 2 is connected to the exhaust fan 1. Valves 5 are installed on both the first suction pipe 4 and the second suction pipe 6. The dual hydraulic cylinders 14 are mechanically linked and connected by a synchronous control system, and lift and lower simultaneously. A filter pipe 19 is installed on one side of the upper end of the extruder body 16. One end of the exhaust fan 1 is connected to the filter pipe 19. The exhaust fan 1 is a variable frequency fan, which automatically adjusts the speed according to the production line speed to maintain the air velocity at the suction hood in the optimal range of 12–15 m / s. The protective box 17 has openings 18 on both sides, one of which is connected to the extruder body 16. Four support rollers 11 are rotatably connected between the opposite side walls inside the protective box 17. Two support rollers 11 on the same side form a group. When the fabric linear velocity is ≤60m / min, the total air volume is ≥2800m³ / h. In this invention, during the extrusion of nonwoven fabric: Phase 1: Material Import and Path Guidance The non-woven fabric roll enters the equipment through the opening 18 on the side wall of the protective box 17. It first enters the first set of support rollers 11, which plays a preliminary flattening and guiding role, eliminating wrinkles or deviations caused by winding. When passing through the auxiliary rollers 8, the fabric is slightly lifted due to the action of the hydraulic lifting mechanism below, forming a stable inclined conveying surface, usually at an inclination angle of 15°-30°, which is beneficial for subsequent auxiliary dust removal. Phase Two: Dynamic Support and Tension Control The base plate 13 is synchronously driven to rise by the hydraulic cylinders 14 on both sides, which in turn moves the fixed plate 10, support frame 12, and auxiliary roller 8 on top of it upwards as a whole. The auxiliary roller serves as an intermediate support point to ensure that the nonwoven fabric maintains appropriate tension during the passage, preventing sagging or shaking and ensuring adsorption stability. The auxiliary roller 8 is equipped with a pressure sensor, and the hydraulic control system can automatically adjust the lifting height according to the nonwoven fabric of different thicknesses or materials. Adaptive matching is achieved through pressure sensor and PLC feedback control. Phase 3: Double-sided multi-point negative pressure adsorption dust removal: Fixed pipes 15 are provided on one side of the top plate 7 and the bottom plate 13, and multiple suction hoods 9 are installed at equal intervals on them to form an upper and lower two-layer adsorption array. When the non-woven fabric passes through this area, the upper and lower suction hoods open at the same time, and use negative pressure to quickly suck up the floating dust, lint, and small particles on the upper and lower surfaces of the fabric. The adsorption area covers a length of 30-50cm, ensuring sufficient contact time and improving collection efficiency. The multi-point uniform distribution design avoids insufficient local vacuum. The symmetrical layout of the upper and lower parts realizes "sandwich dust removal" and completely eliminates blind spots in single-sided cleaning. Phase Four: Airflow Convergence and Centralized Filtration and Discharge All adsorption airflows converge into the connecting box 3 via the first suction pipe 4 and the second suction pipe 6, and then connect to the main exhaust fan 1 via the connecting pipe 2. Each branch is equipped with a valve 5, which can be used to independently shut off the adsorption system on a certain side, facilitating maintenance or adjustment of airflow distribution. The exhaust fan generates a strong negative pressure, continuously sending the dust-laden gas into the filter pipe 19 above the extruder body. After treatment by the primary and secondary composite filter elements, the gas meets emission standards. The filter pipe has a built-in removable filter screen, which supports regular cleaning or replacement, reducing operation and maintenance costs. Phase 5: Continuous Output and Loop Preparation After dust removal, the nonwoven fabric continues to be leveled by the second set of support rollers and enters the extruder body 16 to complete subsequent actions such as heat sealing, cutting, folding, counting, and packaging. At this time, the hydraulic system is reset, the auxiliary rollers fall back to the initial position, and wait for the next batch of materials to enter, preparing for a new round of dust removal cycle.

[0015] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. Nonwoven shoe cover extrusion packaging machine comprising a protective box (17), characterized in that, The protective box (17) has an extruder body (16) on one side, a top plate (7) is installed on the top of the protective box (17), a hydraulic lifting mechanism is installed at the bottom of the protective box (17), an adsorption structure is installed on one side of the hydraulic lifting mechanism and the top plate (7), an auxiliary support structure is installed at one end of the hydraulic lifting mechanism, and an air suction structure is connected to one end of the two adsorption structures. The hydraulic lifting mechanism includes hydraulic cylinders (14) fixed on both sides of the lower end inside the protective box (17), and the piston rod ends of the two hydraulic cylinders (14) are jointly fixed to a base plate (13). The auxiliary support structure includes a fixed plate (10) fixed to one side of the base plate (13), a support frame (12) fixed to one side of the upper end of the fixed plate (10), and an auxiliary roller (8) rotatably connected to the upper end of the support frame (12).

2. The nonwoven shoe cover extrusion packaging machine according to claim 1, characterized in that: The adsorption structure includes a fixed tube (15) fixed on one side of the bottom plate (13) and the top plate (7), and multiple air suction hoods (9) are installed at equal intervals on opposite sides of the two fixed tubes (15).

3. The nonwoven shoe cover extrusion packaging machine according to claim 2, characterized in that: The air intake structure includes a second air intake pipe (6) and a first air intake pipe (4) respectively connected to one side of two fixed pipes (15). One end of the second air intake pipe (6) and the first air intake pipe (4) are connected to a connecting box (3). One side of the connecting box (3) is connected to a connecting pipe (2). A fan (1) is installed on one side of the upper end of the protective box (17). One end of the connecting pipe (2) is connected to the fan (1). Valves (5) are installed on both the first air intake pipe (4) and the second air intake pipe (6).

4. The nonwoven shoe cover extrusion packaging machine according to claim 3, characterized in that: A filter pipe (19) is installed on one side of the upper end of the extruder body (16), and one end of the blower (1) is connected to the filter pipe (19).

5. The nonwoven shoe cover extrusion packaging machine according to claim 1, characterized in that: The protective box (17) has openings (18) on both sides, one of which is connected to the extruder body (16).

6. The nonwoven shoe cover extrusion packaging machine according to claim 1, characterized in that: Four support rollers (11) are rotatably connected between the opposite side walls inside the protective box (17), and two support rollers (11) on the same side form a group.

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