Non-woven fabric melt-blowing scraping mechanism

Abstract

The utility model relates to the technical field of non-woven fabrics, in particular to a non-woven fabric melt-blowing scraping mechanism which is simple in structure and capable of automatically scraping slag near a lip, reducing manual operation steps and improving safety and slag scraping efficiency. Comprising a spray head and a scraping mechanism, and a long-strip-shaped lip is formed in the bottom of the spray head; the scraping mechanism comprises fixing plates fixed to the two sides of the spray head, horizontal holes are formed in the fixing plates, one ends of the horizontal holes communicate with first vertical holes, the scraping mechanism further comprises moving shafts penetrating through the first vertical holes, moving plates are fixed to one ends of the two moving shafts, and scraping plates are arranged on the moving plates.

Description

Technical Field

[0001] The utility model relates to the technical field of non-woven fabrics, in particular to a non-woven fabric melt-blown scraping mechanism. Background Technique

[0002] Non-woven fabric melt-blown is a technology for manufacturing non-woven fabrics. This technology is mainly used in the production of ultra-fine fiber materials with special filtering properties. In the melt-blown process, a polymer (such as polypropylene) is heated to a molten state and then extruded through a special spinneret into a continuous melt stream. These streams are rapidly cooled and stretched into extremely fine fibers under the action of a high-speed hot air stream and are immediately deposited on a collecting net to form a fiber web structure. The characteristics of melt-blown non-woven fabrics are that the fiber diameter is very small, usually between 1 and 5 microns, which gives it a high surface area and excellent filtration efficiency. Therefore, melt-blown non-woven fabrics are widely used in the manufacture of medical supplies such as masks and protective clothing, as well as filtration materials in air purifiers and water filtration systems.

[0003] After the nozzle is used for a long time, a large amount of slag adheres to the vicinity of its lip. In the prior art, the method of manual slag scraping is mostly used. Due to the large length of some nozzles, the method of manual slag scraping has low efficiency, and the slag scraping action mostly needs to be carried out by looking up, which is very easy to cause injury to the operator and needs to be solved. Summary of the Utility Model

[0004] To solve the above technical problems, the utility model provides a non-woven fabric melt-blown scraping mechanism, which has a simple structure, can automatically scrape the slag near the lip, reduces the manual operation steps, and improves the safety and slag scraping efficiency.

[0005] The non-woven fabric melt-blown scraping mechanism of the utility model includes a nozzle, the bottom of the nozzle is provided with a long strip-shaped lip, and further includes a scraping mechanism; the scraping mechanism includes fixing plates fixed on both sides of the nozzle, the fixing plates are provided with horizontal holes, one end of the horizontal hole is communicated with a vertical hole one, and further includes a moving shaft passing through the vertical hole one, one ends of two moving shafts are fixed with a moving plate, and a scraping plate is arranged on the moving plate.

[0006] As a preferred scheme of the utility model, the scraping plate includes a vertical part slidably connected with the moving plate and a scraping part fixed at the top end of the vertical part.

[0007] As a preferred scheme of the utility model, a bearing seat is arranged at the bottom end of the vertical part, a lead screw is rotatably connected to the bearing seat, a support seat is fixed on the moving plate, the lead screw is rotatably connected to the support seat, and the bottom end of the lead screw is a hand wheel.

[0008] As a preferred embodiment of the present utility model, the scraping mechanism further includes a first guide rail fixed on the fixed plate. A first slider is slidably connected to the first guide rail. A second guide rail is fixed to the first slider. A second slider is slidably connected to the second guide rail. The moving shaft is fixedly connected to the second slider.

[0009] As a preferred embodiment of the present utility model, the scraping mechanism further includes a rotating shaft rotatably connected to the fixed plate. A driving rod is fixedly connected to the rotating shaft. The driving rod is slidably connected to the other end of the moving shaft.

[0010] As a preferred embodiment of the present utility model, a power mechanism for driving the rotation of the rotating shaft is fixed to the end of the rotating shaft.

[0011] As a preferred embodiment of the present utility model, the other end of the horizontal hole communicates with a second vertical hole.

[0012] As a preferred embodiment of the present utility model, the bearing seat is fixedly connected to the vertical portion through a flange.

[0013] As a preferred embodiment of the present utility model, the moving shaft is fixedly connected to the moving plate through a flange.

[0014] As a preferred embodiment of the present utility model, a nut is threadedly connected to the lead screw.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows: This device can automatically scrape the slag near the lip. For some stubborn slag, manual cleaning is still required, which greatly reduces the labor intensity of the operator and improves safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present utility model;

[0017] Figure 2 is Figure 1 a partial enlarged view of part A in

[0018] Figure 3 is a perspective view of the scraping mechanism;

[0019] Figure 4 is Figure 3 a partial enlarged view of part B in

[0020] Figure 5 is a schematic structural diagram of the moving plate, the scraping plate, the support seat, the lead screw, etc.;

[0021] Figure 6 is Figure 2 the front view of

[0022] Reference signs in the drawings: 1, nozzle; 2, fixed plate; 3, horizontal hole; 4, first vertical hole; 5, moving shaft; 6, moving plate; 7, scraper; 8, bearing seat; 9, lead screw; 10, support seat; 11, first guide rail; 12, first slider; 13, second guide rail; 14, second slider; 15, rotating shaft; 16, power mechanism; 17, second vertical hole; 18, nut; 19, driving rod. Specific embodiments

[0023] In order to make the above objects, features, and advantages of the present utility model more obvious and understandable, the specific embodiments of the present utility model will be described in detail below with reference to the accompanying drawings of the specification.

[0024] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0025] Secondly, the so-called "embodiment" herein refers to specific features, structures, or characteristics that can be included in at least one implementation manner of the present utility model. The phrase "in an embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments.

[0026] Embodiment

[0027] Referring to Figures 1 - 6 , this embodiment provides a non-woven fabric meltblown scraping mechanism, including a nozzle 1 with a long strip-shaped lip at the bottom, and also including a scraping mechanism; the scraping mechanism includes fixed plates 2 fixed on both sides of the nozzle 1, the two fixed plates 2 are arranged along the length direction of the nozzle 1, the fixed plates 2 are provided with horizontal holes 3, one end of the horizontal hole 3 is communicated with a first vertical hole 4, and also includes a moving shaft 5 passing through the first vertical hole 4. One end of the two moving shafts 5 is fixed with a moving plate 6, and a scraper 7 is arranged on the moving plate 6. The scraper 7 includes a vertical part slidably connected to the moving plate 6 and a scraping part fixed at the top of the vertical part. The scraping part has a certain angle with the bottom end of the nozzle 1, and the scraping part can better fit the surface of the nozzle 1 to ensure that the scraping part is in close contact with the lip of the nozzle 1, thereby improving the cleaning efficiency; the bottom end of the vertical part is provided with a bearing seat 8, the bearing seat 8 is rotatably connected with a lead screw 9, the moving plate 6 is fixed with a support seat 10, the lead screw 9 is rotatably connected with the support seat 10, and the bottom end of the lead screw 9 is a handwheel. When the handwheel is rotated to drive the lead screw 9 to rotate, since the vertical part is slidably connected to the moving plate 6, with the cooperation of the lead screw 9 and the like, the initial position of the scraper 7 can be adjusted. On the premise that the position of the horizontal hole 3 is fixed, the end position of the scraper 7 can be adjusted, and it is convenient to adjust the scraper 7 to just contact the bottom end of the nozzle 1.

[0028] As a preferred embodiment of the present utility model, the scraping mechanism further includes a first guide rail 11 fixed to the fixing plate 2. The first guide rail 11 is horizontally arranged. A first slider 12 is slidably connected to the first guide rail 11. The first slider 12 is fixed with a second guide rail 13. The second guide rail 13 is vertically arranged. A second slider 14 is slidably connected to the second guide rail 13. The moving shaft 5 is fixedly connected to the second slider 14. The scraping mechanism further includes a rotating shaft 15 rotatably connected to the fixing plate 2. The rotating shaft 15 is located below and in the middle of the horizontal hole 3. The rotating shaft 15 is fixedly connected with a driving rod 19. The driving rod 19 is slidably connected to the other end of the moving shaft 5. More specifically, a long hole is formed in the driving rod 19. The moving shaft 5 passes through the long hole. A power mechanism 16 for driving its rotation is fixed to the end of the rotating shaft 15. The power mechanism 16 is a motor. When it is necessary to move the scraper 7, the motor is turned on to make the rotating shaft 15 rotate clockwise. Since the rotating shaft 15 is located below and in the middle of the horizontal hole 3, the driving rod 19 can always generate a thrust on the moving shaft 5. When the moving shaft 5 moves on the first vertical hole 4, the moving shaft 5 drives the second slider 14 to move vertically upward. Since the second slider 14 does not rotate, the moving shaft 5 does not rotate either. When the moving shaft 5 moves on the horizontal hole 3, the moving shaft 5 drives the first slider 12 and the second slider 14 to move. Since neither the first slider 12 nor the second slider 14 rotates, the moving shaft 5 and the scraper 7 do not rotate either. When the moving shaft 5 moves on the first vertical hole 4, the scraper 7 gradually approaches the bottom of the nozzle 1. When the moving shaft 5 moves on the horizontal hole 3, the scraper 7 is in close contact with the bottom of the nozzle 1 and keeps moving, playing a role in scraping.

[0029] As a preferred embodiment of the present utility model, the other end of the horizontal hole 3 communicates with a second vertical hole 17. When the moving shaft 5 moves downward in the second vertical hole 17, the scraper 7 gradually moves away from the nozzle 1, and at this time, the scraping part faces to the right, which is more conducive to cleaning the scraping part.

[0030] As a preferred embodiment of the present utility model, the bearing seat 8 is fixedly connected to the vertical part through a flange, which facilitates the disassembly and assembly of the bearing seat 8.

[0031] As a preferred embodiment of the present utility model, the moving shaft 5 is fixedly connected to the moving plate 6 through a flange, which facilitates the assembly of the moving shaft 5 and the moving plate 6.

[0032] As a preferred embodiment of the present utility model, a screw rod 9 is threadedly connected with nuts 18. There are two nuts 18, which are respectively located on both sides of the support seat 10. After the position of the scraper 7 is adjusted, the two nuts 18 are tightened to prevent the screw rod 9 from rotating.

[0033] The using process of the present utility model is as follows: As Figure 1 、 Figure 6As shown, the moving shaft 5 is at the bottom end of the first vertical hole 4. At this time, it is in a normal operating state. When it is necessary to scrape the slag near the lip, first stop the operation, and then operate the power mechanism 16 to rotate the rotating shaft 15 and the drive shaft. When the moving shaft 5 moves in the first vertical hole 4, the scraping part gradually approaches the bottom of the nozzle 1. When the moving shaft 5 moves in the horizontal hole 3, the scraping part scrapes the slag along the bottom of the nozzle 1. When the moving shaft 5 moves up in the second vertical hole 17, the scraping part gradually disengages from the nozzle 1, and stop the power mechanism 16 when the moving shaft 5 is at the bottom end of the second vertical hole 17. At this time, the scraping part faces outward, and the scraping part is cleaned.

[0034] It should be understood that in the development of any actual implementation, such as in any engineering or design project, a large number of specific implementation decisions can be made. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, without undue experimentation, such development efforts will be routine work of design, manufacture, and production.

[0035] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A non-woven fabric meltblowing scraping mechanism, comprising a nozzle (1), the bottom of the nozzle (1) having a long strip lip, and also comprising a scraping mechanism; characterized in that: The scraper mechanism comprises a fixed plate (2) fixed on both sides of the nozzle (1), the fixed plate (2) being provided with a horizontal hole (3), one end of the horizontal hole (3) being connected with a vertical hole (4), and also comprising a movable shaft (5) passing through the vertical hole (4), one end of the two movable shafts (5) being fixed with a movable plate (6), and the movable plate (6) being provided with a scraper (7).

2. The nonwoven meltblown scraper mechanism according to claim 1, characterized in that: The scraper (7) comprises a vertical portion slidably connected to the movable plate (6) and a scraping portion fixed on the top of the vertical portion.

3. The nonwoven meltblown scraper mechanism according to claim 2, characterized in that: A bearing seat (8) is arranged at the bottom end of the vertical portion, and the bearing seat (8) is rotatably connected to a screw rod (9). A support seat (10) is fixed to the movable plate (6), and the screw rod (9) is rotatably connected to the support seat (10), and the bottom end of the screw rod (9) is a hand wheel.

4. The nonwoven meltblown scraper mechanism according to claim 3, characterized in that: The scraper mechanism further comprises a guide rail 1 (11) fixed on the fixed plate (2), the guide rail 1 (11) being slidably connected to a slider 1 (12), the slider 1 (12) being fixed to a guide rail 2 (13), the guide rail 2 (13) being slidably connected to a slider 2 (14), and the movable shaft (5) being fixedly connected to the slider 2 (14).

5. The nonwoven meltblown scraper mechanism according to claim 4, characterized in that: The scraper mechanism further comprises a rotating shaft (15) rotatably connected to the fixed plate (2); the rotating shaft (15) is fixedly connected to a driving rod (19); and the driving rod (19) is slidably connected to the other end of the movable shaft (5).

6. The nonwoven meltblown scraper mechanism according to claim 5, characterized in that: A power mechanism (16) for driving the rotating shaft (15) to rotate is fixed to the end of the rotating shaft (15).

7. The nonwoven meltblown scraper mechanism according to claim 6, characterized in that: The other end of the horizontal hole (3) is connected to a second vertical hole (17).

8. The nonwoven meltblown scraper mechanism according to claim 3, characterized in that: The bearing seat (8) is fixedly connected to the vertical part via a flange.

9. The nonwoven meltblown scraper mechanism according to claim 1, characterized in that: The movable shaft (5) is fixedly connected to the movable plate (6) via a flange.

10. The nonwoven meltblown scraping mechanism according to claim 3, characterized in that: The screw rod (9) is threadedly connected with a nut (18).

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