Leveling device for mask sheet conveying

Abstract

The utility model provides a leveling device for conveying mask sheets, which comprises support frames symmetrically connected to a support table, a top frame fastened between the upper ends of the support frames, a mounting frame arranged right below the top frame, a first electric telescopic rod connected between the mounting frame and the top frame, and a second support arranged right below the mounting frame, the bottom of the second support is rotationally connected with a plurality of third pressing rollers, one side of each third pressing roller is sequentially provided with a crease pressing plate fastened to the top of the supporting table and a guiding mechanism, a plurality of vertical rods are vertically arranged at the top of the second support and penetrate through the mounting frame, and reset springs are fastened between the second support and the mounting frame. The reset springs and the vertical rods are coaxially arranged, a mounting cavity is formed in the top of the supporting table, and a plurality of second pressing rollers are rotationally connected into the mounting cavity. The non-woven fabric flattening and pressing device can flatten and press the non-woven fabric folded by the crease pressing plate, so that indentation deviation in the transportation process is avoided, and the quality of mask production is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mask production, in particular to a leveling device for conveying mask sheets. Background Art

[0002] The mask machine manufactures various masks with certain filtering performance by hot pressing, folding and forming multiple layers of non-woven fabrics, ultrasonic welding, waste cutting, ear strap and nose bridge welding, etc. The mask production equipment is not a single machine, it requires the cooperation of multiple machines to complete various different processes.

[0003] However, in actual use, during production, the existing mask machines require manual adjustment to control and flatten the non-woven fabric after it is folded by the crease pressing plate. Manual operation is labor-intensive and has low flattening accuracy, which easily leads to uneven creases on the masks and a low yield rate of masks. To this end, we proposed a flattening device for conveying mask sheets. Utility Model Content

[0004] In view of the existing mask machines, during production, after the non-woven fabric is folded into wrinkles by the crease pressing plate, most of them need to be manually adjusted to control and flatten it. Manual operation is labor-intensive, labor-intensive, and has low flattening accuracy, which easily leads to uneven creases on the mask and a low mask yield. The utility model provides a flattening device for conveying mask sheets, which has the advantage of flattening and pressing the non-woven fabric folded by the crease pressing plate, avoiding indentation deviation during transportation, ensuring the quality of mask processing, and solving the problems raised in the above-mentioned background technology.

[0005] The technical solution of the utility model is achieved as follows: a leveling device for conveying mask sheets, comprising a support frame symmetrically connected to a support table, a top frame fastened between the upper ends of the support frames, a mounting frame arranged directly below the top frame, a first electric telescopic rod connected between the mounting frame and the top frame, a second bracket arranged directly below the mounting frame, a plurality of third pressing rollers rotatably connected to the bottom of the second bracket, and a crease pressing plate and a guide mechanism fastened to the top of the support table are sequentially arranged on one side of the third pressing roller, a plurality of vertical rods are vertically arranged on the top of the second bracket, the vertical rods pass through the mounting frame, a reset spring is fastened between the second bracket and the mounting frame, the reset spring and the vertical rod are coaxially arranged, an mounting cavity is opened on the top of the support table, a plurality of second pressing rollers are rotatably connected in the mounting cavity, the second pressing rollers are located directly below the third pressing roller and the number of the two is the same.

[0006] Optionally, the second bracket has a U-shaped cross-section and is set with the opening facing downward. The third pressure roller is rotatably connected to the second bracket through a first rotating shaft. One end of the first rotating shaft passes through the second bracket and is connected to multiple second pulleys. Adjacent second pulleys are connected by belts, and a second motor is fastened to the end of one of the first rotating shafts.

[0007] Optionally, the second pressure roller is rotatably connected to the mounting cavity via a second rotating shaft, one end of the second rotating shaft passes through the outside of the support platform and is connected to multiple first pulleys, adjacent first pulleys are connected by belts, and the end of one of the second rotating shafts is fastened to a first motor.

[0008] Optionally, a plurality of guide sleeves are vertically connected to the top of the mounting frame, a guide rod is fastened at a corresponding position on the bottom surface of the top frame, and the bottom of the guide rod is slidably connected in the guide sleeve.

[0009] Optionally, the guiding mechanism includes connecting frames symmetrically connected to the top of the support platform, and a plurality of guide rollers are connected between the connecting frames by rotation, and the guide rollers are distributed in a wave shape.

[0010] Optionally, a second electric telescopic rod that extends downward is fastened to one end of the support frame close to the connecting frame, the second electric telescopic rod is located between the crease pressure plate and the connecting frame, the bottom of the second electric telescopic rod is fastened to a first bracket, and the bottom of the first bracket is rotatably connected to a first pressure roller.

[0011] Optionally, a slider is fastened to the end of the first bracket, a sliding groove is provided at a corresponding position of the side wall of the support frame, and the slider is slidably connected in the sliding groove.

[0012] Compared with the prior art, the utility model can wind the non-woven fabric on the guide roller in sequence, and move it between the second pressing roller and the third pressing roller through the crease pressing plate. When the second pressing roller is pressed and transported by the third pressing roller, the non-woven fabric folded by the crease pressing plate can be flattened and pressed, thereby avoiding the indentation deviation during transportation and ensuring the quality of mask processing. The set first pressing roller can not only guide the non-woven fabric passing through, but also adjust the use height of the first pressing roller according to the tension of the non-woven fabric, thereby further improving the quality of mask production. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0014] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 .

[0015] Figure 2 This is a schematic diagram of the structure of the utility model Figure 2 .

[0016] Figure 3 It is a cross-sectional view of the present utility model.

[0017] In the figure: 1. Top frame; 2. Support frame; 3. Slide; 4. First electric telescopic rod; 5. Crease pressure plate; 6. First pressure roller; 7. First bracket; 8. Second electric telescopic rod; 9. Guide rod; 10. Guide sleeve; 11. Vertical rod; 12. Mounting frame; 13. Return spring; 14. Second bracket; 15. Mounting cavity; 16. Second pressure roller; 17. Third pressure roller; 18. First rotating shaft; 19. Second rotating shaft; 20. First pulley; 21. First motor; 22. Second motor; 23. Support platform; 24. Second pulley; 25. Guide roller; 26. Connecting frame; 27. Slider. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solution of the present invention in conjunction with the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] Reference Figures 1 to 3 The utility model provides a technical solution: a leveling device for conveying mask sheets, comprising a support frame 2 symmetrically connected to a support platform 23, a top frame 1 fastened between the upper ends of the support frame 2, a mounting frame 12 is provided directly below the top frame 1, a first electric telescopic rod 4 is connected between the mounting frame 12 and the top frame 1, a plurality of guide sleeves 10 are vertically connected to the top of the mounting frame 12, a guide rod 9 is fastened at a corresponding position on the bottom surface of the top frame 1, and the bottom of the guide rod 9 is slidably connected in the guide sleeve 10, such as Figure 1 As shown, the first electric telescopic rod 4 pushes the mounting frame 12 to rise and fall and slide, which can drive the guide rod 9 to slide in the guide sleeve 10, playing a guiding and stabilizing role in the sliding of the mounting frame 12, thereby improving the quality of mask processing.

[0020] like Figure 1 、 2As shown, a second bracket 14 is arranged directly below the mounting frame 12, and a plurality of third pressure rollers 17 are rotatably connected to the bottom of the second bracket 14. A plurality of vertical rods 11 are vertically arranged on the top of the second bracket 14, and the vertical rods 11 pass through the mounting frame 12. A reset spring 13 is fastened between the second bracket 14 and the mounting frame 12, and the reset spring 13 is coaxially arranged with the vertical rod 11. In actual use, the first electric telescopic rod 4 pushes the mounting frame 12 to move downward and contact the non-woven fabric. During the rolling process, the non-woven fabric can act on the third pressure roller 17. Under the action of the elastic force of the reset spring 13, the force can be partially buffered, thereby ensuring the normal passage of the non-woven fabric. At the same time, the crease can be pressed and clamped to avoid the deviation of the crease.

[0021] At the same time, when in use, the second bracket 14 has a U-shaped cross-section and is opened downwardly. The third pressing roller 17 is rotatably connected to the second bracket 14 through the first rotating shaft 18. One end of the first rotating shaft 18 passes through the second bracket 14 and is connected to multiple second pulleys 24. Adjacent second pulleys 24 are connected by belts, and the end of one of the first rotating shafts 18 is fastened to a second motor 22. An installation cavity 15 is opened on the top of the support platform 23. Multiple second pressing rollers 16 are rotatably connected in the installation cavity 15. The second pressing roller 16 is rotatably connected in the installation cavity 15 through the second rotating shaft 19. One end of the second rotating shaft 19 passes through the outside of the support platform 23 and is connected to multiple first pulleys 20. Adjacent first pulleys 20 are connected by belts, and the end of one of the second rotating shafts 19 is fastened to a first motor 21. The second pressing rollers 16 are located directly below the third pressing rollers 17 and the number of the two is the same. Pressure and lateral force are generated between the rotating second pressing rollers 16 and the third pressing rollers 17, which can not only flatten the creases to avoid deviation but also transport the non-woven fabric.

[0022] In summary, the flattening device for conveying mask sheets, when in use, one side of the third pressing roller 17 is sequentially provided with a crease pressing plate 5 fastened to the top of the support platform 23 and a guide mechanism, wherein the guide mechanism includes a connecting frame 26 symmetrically connected to the top of the support platform 23, and a plurality of guide rollers 25 are connected between the connecting frames 26 by rotation, and the guide rollers 25 are distributed in a wave shape. When in use, the non-woven fabric is wound around the guide rollers 25 in sequence and moved between the second pressing roller 16 and the third pressing roller 17 through the crease pressing plate 5. Under the pressure and transportation of the second pressing roller 16 between the third pressing roller 17, the non-woven fabric folded by the crease pressing plate 5 can be flattened and pressed, thereby avoiding indentation deviation during transportation, ensuring the quality of mask processing, and in order to ensure non-woven fabric The woven fabric is broken due to excessive tension during transportation. A second electric telescopic rod 8 that extends downward is fastened to one end of the support frame 2 close to the connecting frame 26. The second electric telescopic rod 8 is located between the crease pressure plate 5 and the connecting frame 26. The bottom of the second electric telescopic rod 8 is fastened to a first bracket 7. The bottom of the first bracket 7 is rotatably connected to a first pressure roller 6. The first pressure roller 6 guides the passing non-woven fabric and can adjust the height of the first pressure roller 6 according to the tension exerted on the non-woven fabric, thereby protecting the non-woven fabric. In order to achieve stable up and down sliding of the first pressure roller 6, a slider 27 is fastened to the end of the first bracket 7, and a slide groove 3 is provided at the corresponding position of the side wall of the support frame 2. The slider 27 is slidably connected in the slide groove 3.

[0023] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A flattening device for conveying mask sheets, comprising a support frame (2) symmetrically connected to a support platform (23), characterized in that: The top frame (1) is fastened between the upper ends of the support frame (2), a mounting frame (12) is provided directly below the top frame (1), a first electric telescopic rod (4) is connected between the mounting frame (12) and the top frame (1), a second bracket (14) is provided directly below the mounting frame (12), a plurality of third pressing rollers (17) are rotatably connected to the bottom of the second bracket (14), and a folding pressing plate (5) and a guide mechanism fastened to the top of the support platform (23) are sequentially provided on one side of the third pressing roller (17); A plurality of vertical rods (11) are vertically arranged on the top of the second bracket (14), and the vertical rods (11) are arranged to pass through the installation frame (12). A reset spring (13) is fastened between the second bracket (14) and the installation frame (12), and the reset spring (13) and the vertical rod (11) are coaxially arranged. A mounting cavity (15) is opened on the top of the support platform (23), and a plurality of second pressing rollers (16) are rotatably connected in the mounting cavity (15). The second pressing rollers (16) are located directly below the third pressing roller (17), and the number of the second pressing rollers (16) and the third pressing roller (17) are the same.

2. The flattening device for conveying mask sheets according to claim 1, characterized in that: The second bracket (14) has a U-shaped cross section and is opened downward. The third pressure roller (17) is rotatably connected to the second bracket (14) via a first rotating shaft (18). One end of the first rotating shaft (18) passes through the second bracket (14) and is connected to a plurality of second pulleys (24). Adjacent second pulleys (24) are connected via belts, and a second motor (22) is fastened to the end of one of the first rotating shafts (18).

3. The flattening device for conveying mask sheets according to claim 1, characterized in that: The second pressure roller (16) is rotatably connected to the installation cavity (15) via a second rotating shaft (19); one end of the second rotating shaft (19) extends to the outside of the support platform (23) and is connected to a plurality of first pulleys (20); adjacent first pulleys (20) are connected via belts, and a first motor (21) is fastened to the end of one of the second rotating shafts (19).

4. The flattening device for conveying mask sheets according to claim 1, characterized in that: The top of the mounting frame (12) is vertically connected to a plurality of guide sleeves (10), and a guide rod (9) is fastened to a corresponding position on the bottom surface of the top frame (1), and the bottom of the guide rod (9) is slidably connected in the guide sleeve (10).

5. The flattening device for conveying mask sheets according to any one of claims 1 to 4, characterized in that: The guiding mechanism comprises a connecting frame (26) symmetrically connected to the top of the supporting platform (23); a plurality of guide rollers (25) are connected between the connecting frames (26) by rotation, and the guide rollers (25) are distributed in a wave shape.

6. The flattening device for conveying mask sheets according to claim 5, characterized in that: A second electric telescopic rod (8) that telescopes downward is fastened to one end of the support frame (2) close to the connecting frame (26); the second electric telescopic rod (8) is located between the folding pressing plate (5) and the connecting frame (26); a first bracket (7) is fastened to the bottom of the second electric telescopic rod (8); and a first pressing roller (6) is rotatably connected to the bottom of the first bracket (7).

7. The flattening device for conveying mask sheets according to claim 6, characterized in that: A slider (27) is fastened to the end of the first bracket (7), a slide groove (3) is provided at a corresponding position of the side wall of the support frame (2), and the slider (27) is slidably connected in the slide groove (3).

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