Multi-layer pressing equipment for winding film processing

Abstract

The utility model discloses a multilayer laminating device for processing a wrapping film, which comprises a machine body, a vertical plate is arranged on one side above the machine body, a deviation rectifying mechanism is arranged on one side below a support, a bidirectional lead screw is connected with the output end of a rotating motor, the rotating motor is positioned on the front wall of the support, and the vertical plate is arranged on the machine body. Two moving plates are arranged on the two-way lead screw, and limiting clamping plates are arranged on the side walls of the two moving plates. The wrapping film heated and pressed by the first heating roller and the second heating roller is pressed by the first film pressing roller and the second film pressing roller again, the pressing quality of the wrapping film can be further improved through the double-pressing mode, the wrapping film is preliminarily fused in a hot state through heating and pressing, and the wrapping film is not prone to falling off. And the wrapping film is extruded again in the cooling process through subsequent normal-temperature pressing, so that the structure of the wrapping film is tighter and firmer, gaps and defects in the wrapping film are effectively reduced, the overall strength and stability of the wrapping film are improved, and the product quality is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of multilayer pressing technology for stretch film, and specifically to a multilayer pressing device for stretch film processing. Background Technology

[0002] Stretch film typically refers to plastic film used for packaging, securing, or protecting items. It is commonly used in logistics, warehousing, and other fields. Therefore, it needs to have certain tensile strength, toughness, and adhesion. However, single-layer films may be insufficient in these aspects, such as being easy to tear or failing to provide sufficient protection. Therefore, multiple layers of film are bonded together by pressure through an extrusion mechanism. The multi-layer structure of stretch film can improve the overall strength.

[0003] When existing stretch film is fed into the hot pressing area, the two layers of material may shift, resulting in misalignment of the edges. This leads to uneven edges, air bubbles, or wrinkles on the pressed product, thus affecting the pressing quality. For example, in a pressing device for the production of biodegradable plastic film disclosed in patent CN209888197U, the film directly enters two pressure rollers for pressing without a film correction and limiting function. It is difficult to ensure alignment of the two layers of film material. Due to the misalignment of the two layers of material, the pressure on one side may be too high, while the pressure on the other side may be insufficient, resulting in wrinkles or air bubbles. At the same time, material misalignment can also cause air bubbles and wrinkles during the pressing process, seriously affecting the pressing quality and thus reducing the overall quality and performance of the product.

[0004] Therefore, it is necessary to invent a multilayer pressing device for wrapping film processing to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a multilayer pressing device for processing stretch film, so as to solve the problem that the technology does not have a film correction and limiting function.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multi-layer pressing device for processing stretch film, comprising a machine body, an upright plate disposed on one side of the upper part of the machine body, a feeding mechanism disposed on the front side of the upright plate, a conveying mechanism disposed on one side of the feeding mechanism, a support disposed on the other side of the upper part of the machine body, a crossbeam disposed at the top of the support, and a correction mechanism disposed on the lower side of the support. The correction mechanism includes a bidirectional lead screw and a rotary motor. The bidirectional lead screw is connected to the output end of the rotary motor. The rotary motor is located on the front wall of the support. Two movable plates are disposed on the bidirectional lead screw, and limit clamps are disposed on the side walls of the two movable plates.

[0007] Preferably, the feeding mechanism includes a first feeding roller and a second feeding roller, and further includes a first transmission mechanism, a servo motor and a second transmission mechanism. The first transmission mechanism is disposed between the first feeding roller and the second feeding roller, and the second transmission mechanism is disposed between the second feeding roller and the servo motor, so as to realize stable and continuous feeding of the wrapping film and ensure the smooth progress of subsequent processing steps.

[0008] Preferably, the first transmission mechanism and the second transmission mechanism are composed of a belt tensioned on two pulleys. The two pulleys in the first transmission mechanism are located at the shaft ends of the first feeding roller and the second feeding roller, respectively. The two pulleys in the second transmission mechanism are located at the shaft end of the second feeding roller and the output end of the servo motor, respectively. This allows the first feeding roller and the second feeding roller to rotate synchronously, ensuring the continuity and stability of feeding.

[0009] Preferably, the conveying mechanism includes a support plate located on the machine body, and the conveying mechanism also includes a first conveying roller and a second conveying roller, both of which are rotatably mounted on the support plate to further convey the wrapping film fed by the feeding mechanism to the subsequent processing area.

[0010] Preferably, a pressing mechanism is provided on one side of the conveying mechanism. The pressing mechanism includes a positioning frame located on the machine body. The pressing mechanism also includes a lower roller rotatably mounted on the side wall of the positioning frame. A lifting frame is provided above the lower roller. An upper roller is rotatably connected to the inner wall of the lifting frame and is located directly above the lower roller. A manual screw is provided at the center of the top surface of the lifting frame and extends through the positioning frame to its top. Sliding rods are connected to both sides of the top surface of the lifting frame and are slidably mounted on the positioning frame. The lifting frame moves up and down through the manual screw and the sliding rods, thereby adjusting the distance between the upper and lower rollers to meet the pressing requirements of wrapping films of different thicknesses.

[0011] Preferably, a first mounting frame and a second mounting frame are provided below the crossbeam. A first heating roller is rotatably mounted below the first mounting frame, and a first cylinder is provided above the first mounting frame. The output end of the first cylinder is connected to the top surface of the first mounting frame. A first pressing roller is rotatably mounted below the second mounting frame, and a second cylinder is provided above the second mounting frame. The output end of the second cylinder is connected to the top surface of the second mounting frame. Both the first and second cylinders are located on the crossbeam. The heights of the first heating roller and the first pressing roller can be flexibly adjusted according to actual processing needs to ensure the heating and pressing effects.

[0012] Preferably, a second heating roller is arranged directly below the first heating roller and located on the upper surface of the machine body, and a second pressing roller is arranged directly below the first pressing roller and located on the upper surface of the machine body. Heaters are provided on the front side of both the first heating roller and the second heating roller. The first heating roller and the second heating roller work together with the heaters to heat and press the wrapping film together, making it more tightly bonded together.

[0013] Preferably, the bottom surface of the limiting clamp is provided with a slider, and the top surface of the machine body is provided with a sliding groove. The position of the sliding groove corresponds to the position of the sliding direction of the limiting clamp, and the width of the sliding groove matches the width of the slider, so as to ensure the stability and accuracy of the limiting clamp during movement.

[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0015] 1. The stretch film of this invention, after being heated and pressed by heating rollers No. 1 and No. 2, is pressed again by pressing rollers No. 1 and No. 2. This double pressing method can further improve the pressing quality of the stretch film. The heating and pressing allows the stretch film to initially fuse in a hot state, while the subsequent room temperature pressing further compresses the stretch film during the cooling process, making its structure more compact and firm. This effectively reduces the voids and defects inside the stretch film, improves the overall strength and stability of the stretch film, and thus significantly improves the product quality.

[0016] 2. In this invention, the wrapping film before entering the pressing area can be corrected and limited by a correction mechanism. The correction mechanism drives the limiting clamp to move through a bidirectional lead screw and a rotary motor, which can adjust the position of the wrapping film in real time to ensure that it always stays on the correct conveying path. This can effectively avoid the problem of poor pressing caused by film deviation and improve the processing accuracy and consistency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the overall front structure of this utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of the feeding mechanism of this utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the extrusion mechanism of this utility model;

[0021] Figure 5 This is a three-dimensional structural diagram of the membrane stretching mechanism of this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Machine body; 2. Vertical plate; 3. Feeding mechanism; 301. Feeding roller No. 1; 302. Feeding roller No. 2; 303. Transmission mechanism No. 1; 304. Servo motor; 305. Transmission mechanism No. 2; 4. Conveying mechanism; 401. Support plate; 402. Conveying roller No. 1; 403. Conveying roller No. 2; 5. Extrusion mechanism; 501. Positioning frame; 502. Lower roller; 503. Lifting frame; 504. Upper roller; 505. Manual screw; 50 6. Slide rod; 6. Bracket; 7. Crossbeam; 8. Cylinder No. 1; 9. Mounting bracket No. 1; 10. Heating roller No. 1; 11. Heating roller No. 2; 12. Cylinder No. 2; 13. Mounting bracket No. 2; 14. Pressing roller No. 1; 15. Pressing roller No. 2; 16. Heater; 17. Correction mechanism; 1701. Bidirectional lead screw; 1702. Rotary motor; 1703. Moving plate; 1704. Limiting clamp; 1705. Slider; 1706. Slide groove. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0025] This utility model provides, for example Figure 1-5 The illustrated multi-layer pressing equipment for stretch film processing includes a machine body 1. A vertical plate 2 is mounted on one side of the upper part of the machine body 1. A feeding mechanism 3 is mounted on the front side of the vertical plate 2. A conveying mechanism 4 is mounted on one side of the feeding mechanism 3. A support 6 is mounted on the other side of the upper part of the machine body 1. A crossbeam 7 is mounted at the top of the support 6. A correction mechanism 17 is mounted on the lower side of the support 6. The correction mechanism 17 includes a bidirectional lead screw 1701 and a rotary motor 1702. The bidirectional lead screw 1701 and the rotary motor 1702... The output end is connected, the rotary motor 1702 is located on the front wall of the bracket 6, the two-way lead screw 1701 is provided with two moving plates 1703, the side walls of the two moving plates 1703 are provided with limit clamps 1704, the bottom surface of the limit clamps 1704 is provided with sliders 1705, the top surface of the machine body 1 is provided with a slide groove 1706, the position of the slide groove 1706 corresponds to the position of the sliding direction of the limit clamps 1704, and the width of the slide groove 1706 matches the width of the slider 1705.

[0026] The corrective mechanism 17 prevents film misalignment caused by various factors during the film conveying process. The rotary motor 1702 drives the bidirectional lead screw 1701 to rotate, causing the two moving plates 1703 to move relative to or towards each other, thereby moving the limiting clamp 1704 to correct the misaligned film. The slider 1705 on the bottom surface of the limiting clamp 1704 slides in the groove 1706, ensuring the stability and accuracy of the correction process, ensuring that the film always stays on the correct conveying path, and improving the subsequent pressing accuracy.

[0027] The feeding mechanism 3 includes a first feeding roller 301 and a second feeding roller 302. It also includes a first transmission mechanism 303, a servo motor 304, and a second transmission mechanism 305. The first transmission mechanism 303 is positioned between the first feeding roller 301 and the second feeding roller 302, and the second transmission mechanism 305 is positioned between the second feeding roller 302 and the servo motor 304. Both the first and second transmission mechanisms are composed of a belt tensioned between two pulleys. The two pulleys in the first transmission mechanism 303 are located at the shaft ends of the first feeding roller 301 and the second feeding roller 302, respectively, and the two pulleys in the second transmission mechanism 305 are located at the shaft end of the second feeding roller 302 and the output end of the servo motor 304, respectively. The conveying mechanism 4 includes a support plate 401 located on the machine body. The conveying mechanism 4 also includes a first conveying roller 402 and a second conveying roller 403, both of which are rotatably mounted on the support plate 401. A pressing mechanism 5 is provided on one side of the conveying mechanism 4. The pressing mechanism 5 includes a positioning frame 501, which is located on the machine body 1. The pressing mechanism 5 also includes a lower roller 502, which is rotatably mounted on the side wall of the positioning frame 501. A lifting frame 503 is provided above the lower roller 502. An upper roller 504 is rotatably connected to the inner wall of the lifting frame 503. The upper roller 504 is located directly above the lower roller 502. A manual screw 505 is provided at the center of the top surface of the lifting frame 503 and extends through the positioning frame 501 to its top. Slide rods 506 are connected to both sides of the top surface of the lifting frame 503 and are slidably mounted on the positioning frame 501.

[0028] Servo motor 304 drives second feeding roller 302 to rotate via second transmission mechanism 305. Second feeding roller 302 then drives first feeding roller 301 to rotate via first transmission mechanism 303, achieving stable and continuous feeding of the wrapping film. This transmission method allows first feeding roller 301 and second feeding roller 302 to rotate synchronously, achieving continuity and stability in feeding the two materials and ensuring the smooth progress of subsequent processing steps. The extrusion mechanism 5 can realize the combined extrusion and conveying of the two materials. By rotating the manual screw 505, the lifting frame 503 can be moved up and down, thereby adjusting the distance between the upper roller 504 and the lower roller 502. This design can adapt to the extrusion requirements of wrapping films of different thicknesses and ensure the consistency of the extrusion effect.

[0029] Below the crossbeam 7 are a first mounting bracket 9 and a second mounting bracket 13. A first heating roller 10 is rotatably mounted below the first mounting bracket 9. A first cylinder 8 is mounted above the first mounting bracket 9, and the output end of the first cylinder 8 is connected to the top surface of the first mounting bracket 9. A first pressing roller 14 is rotatably mounted below the second mounting bracket 13. A second cylinder 12 is mounted above the second mounting bracket 13, and the output end of the second cylinder 12 is connected to the top surface of the second mounting bracket 13. Both the first cylinder 8 and the second cylinder 12 are located on the crossbeam 7. A second heating roller 11 is located directly below the first heating roller 10 and on the upper surface of the machine body 1. A second pressing roller 15 is located directly below the first pressing roller 14 and on the upper surface of the machine body 1. Heaters 16 are provided on the front side of both the first heating roller 10 and the second heating roller 11.

[0030] The No. 1 cylinder 8 and No. 2 cylinder 12 can flexibly adjust the height of the No. 1 heating roller 10 and the No. 1 pressing roller 14 according to actual processing needs. This allows the No. 1 heating roller 10 and the No. 1 pressing roller 14 to approach the No. 2 heating roller 11 and the No. 2 pressing roller 15 respectively to perform the pressing work. The heater 16 can heat the No. 1 heating roller 10 and the No. 2 heating roller 11. The heated No. 1 heating roller 10 and the No. 2 heating roller 11 can improve the adhesion of the stretch film, so that the stretch film reaches a suitable temperature before pressing, improves its plasticity, and makes it more tightly bonded together, thereby improving the quality and performance of the stretch film.

[0031] Working principle of this utility model:

[0032] Refer to the instruction manual appendix Figure 1-4 When using this utility model, firstly, two different layers of material are fed onto the first feeding roller 301 and the second feeding roller 302. Then, the servo motor 304 is started. The servo motor 304 drives the second feeding roller 302 to rotate through the second transmission mechanism 305. The second feeding roller 302 then drives the first feeding roller 301 to rotate through the first transmission mechanism 303, so as to achieve stable and continuous feeding of the stretch film. After passing through the feeding mechanism 3, the stretch film enters the conveying mechanism 4 and passes through the extrusion mechanism 5 on one side of the conveying mechanism 4. By rotating the manual screw 505, the lifting frame 503 is moved up and down to adjust the distance between the upper roller 504 and the lower roller 502, so that the stretch film is extruded when passing between the upper roller 504 and the lower roller 502, so as to realize the combined conveying of stretch films of different layers of material and ensure the tightness and consistency of the stretch film before subsequent processing.

[0033] Refer to the instruction manual appendix Figure 5When using this invention, if the stretch film deviates during the conveying process, the rotary motor 1702 drives the bidirectional lead screw 1701 to rotate, causing the two moving plates 1703 to move in opposite directions, thereby moving the limiting clamp 1704 to correct the deviated stretch film and ensure that the stretch film always stays on the correct conveying path. After correction, the stretch film enters the heating area, and the heaters 16 on the front side of the first heating roller 10 and the second heating roller 11 start working to heat the first heating roller 10 and the second heating roller 11. The first cylinder 8 and the second cylinder 16... Cylinder 12 adjusts the height of heating roller 10 and pressing roller 14, bringing heating roller 10 closer to heating roller 11 and pressing roller 14 closer to pressing roller 15. As the stretch film passes through heating roller 10 and heating roller 11, it is heated and pressed together. The heated stretch film then enters pressing roller 14 and pressing roller 15 for another pressing, making it more tightly bonded together. This enables efficient and high-quality multi-layer pressing of the stretch film.

Claims

1. A multi-layer laminating apparatus for winding film processing, comprising a machine body (1), characterized in that: A vertical plate (2) is provided on one side of the upper part of the machine body (1). A feeding mechanism (3) is provided on the front side of the vertical plate (2). A conveying mechanism (4) is provided on one side of the feeding mechanism (3). A bracket (6) is provided on the other side of the upper part of the machine body (1). A crossbeam (7) is provided at the top of the bracket (6). A correction mechanism (17) is provided on the lower side of the bracket (6). The correction mechanism (17) includes a bidirectional lead screw (1701) and a rotary motor (1702). The bidirectional lead screw (1701) is connected to the output end of the rotary motor (1702). The rotary motor (1702) is located on the front wall of the bracket (6). Two moving plates (1703) are provided on the bidirectional lead screw (1701). Limiting clamps (1704) are provided on the side walls of the two moving plates (1703).

2. The multi-layer laminating apparatus for wrapping film processing according to claim 1, characterized in that: The feeding mechanism (3) includes a first feeding roller (301) and a second feeding roller (302). The feeding mechanism (3) also includes a first transmission mechanism (303), a servo motor (304) and a second transmission mechanism (305). The first transmission mechanism (303) is disposed between the first feeding roller (301) and the second feeding roller (302). The second transmission mechanism (305) is disposed between the second feeding roller (302) and the servo motor (304).

3. The multi-layer laminating apparatus for wrapping film processing according to claim 2, characterized in that: The first transmission mechanism (303) and the second transmission mechanism (305) are composed of a belt tensioned on two pulleys. The two pulleys in the first transmission mechanism (303) are located at the shaft ends of the first feeding roller (301) and the second feeding roller (302), respectively. The two pulleys in the second transmission mechanism (305) are located at the shaft end of the second feeding roller (302) and the output end of the servo motor (304), respectively.

4. The multi-layer laminating apparatus for wrapping film processing according to claim 1, characterized in that: The conveying mechanism (4) includes a support plate (401) located on the machine body (1). The conveying mechanism (4) also includes a first conveying roller (402) and a second conveying roller (403), both of which are rotatably mounted on the support plate (401).

5. The multi-layer laminating apparatus for wrapping film processing according to claim 4, characterized in that: A pressing mechanism (5) is provided on one side of the conveying mechanism (4). The pressing mechanism (5) includes a positioning frame (501) located on the machine body (1). The pressing mechanism (5) also includes a lower roller (502) rotatably mounted on the side wall of the positioning frame (501). A lifting frame (503) is provided above the lower roller (502). An upper roller (504) is rotatably connected to the inner wall of the lifting frame (503). The upper roller (504) is located directly above the lower roller (502). A manual screw (505) is provided at the center of the top surface of the lifting frame (503) and extends through the positioning frame (501) to its top. Slide rods (506) are connected to both sides of the top surface of the lifting frame (503). The slide rods (506) are slidably mounted on the positioning frame (501).

6. The multi-layer laminating apparatus for wrapping film processing according to claim 1, characterized in that: Below the crossbeam (7) are a first mounting bracket (9) and a second mounting bracket (13). A first heating roller (10) is rotatably mounted below the first mounting bracket (9). A first cylinder (8) is mounted above the first mounting bracket (9). The output end of the first cylinder (8) is connected to the top surface of the first mounting bracket (9). A first pressing roller (14) is rotatably mounted below the second mounting bracket (13). A second cylinder (12) is mounted above the second mounting bracket (13). The output end of the second cylinder (12) is connected to the top surface of the second mounting bracket (13). Both the first cylinder (8) and the second cylinder (12) are located on the crossbeam (7).

7. The multi-layer laminating apparatus for wrapping film processing according to claim 6, characterized in that: A second heating roller (11) is located directly below the first heating roller (10) and on the upper surface of the machine body (1). A second pressing roller (15) is located directly below the first pressing roller (14) and on the upper surface of the machine body (1). Heaters (16) are provided on the front side of both the first heating roller (10) and the second heating roller (11).

8. The multi-layer laminating apparatus for wrapping film processing according to claim 1, characterized in that: The bottom surface of the limiting clamp (1704) is provided with a slider (1705), and the top surface of the body (1) is provided with a sliding groove (1706). The position of the sliding groove (1706) corresponds to the position of the sliding direction of the limiting clamp (1704), and the width of the sliding groove (1706) matches the width of the slider (1705).

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