A masterbatch adding device for meltblown fabric processing and its use method

Abstract

The present invention discloses a masterbatch adding device for meltblown cloth processing, comprising a box body, at least two pads are fixedly welded on the inner side wall of the box cover, a magnet mechanism is arranged on the pad, a dust removal screen is fixedly welded on the inner side wall of the box body, a first discharge pipe corresponding to the fixed plate is fixedly welded on the right side plate of the box body, a filter screen is fixedly welded on the inner side wall of the box body, a second discharge pipe corresponding to the filter screen is fixedly welded on the right side plate of the box body, a feeding pipe is fixedly welded on the bottom of the left side plate of the box body, and a baffle is connected to a plurality of the connecting rods through a rotating mechanism. The present invention also provides a method for using a masterbatch adding device for meltblown cloth processing. The present invention can remove iron impurities, dust, broken particles, polypropylene masterbatch with larger particle size and agglomerated polypropylene masterbatch clusters mixed in polypropylene masterbatch, and can adjust the feeding speed of polypropylene masterbatch.

Description

Technical Field

[0001] The present invention belongs to the technical field of meltblown fabric production, and specifically relates to a masterbatch adding device for meltblown fabric processing. At the same time, the present invention also relates to a method for using the masterbatch adding device for meltblown fabric processing. Background Art

[0002] Meltblown cloth is the core material of masks. It is mainly made of polypropylene, and the fiber diameter can reach 1-5 microns. Ultrafine fibers with many gaps, fluffy structure, good wrinkle resistance, and unique capillary structure increase the number and surface area of ​​fibers per unit area, so that meltblown cloth has good filtering, shielding, insulation and oil absorption. It can be used in air, liquid filter materials, isolation materials, absorption materials, mask materials, thermal insulation materials, oil absorption materials and wiping cloths.

[0003] During the processing of meltblown cloth, polypropylene masterbatch needs to be added to the screw extruder for melting. The current adding devices mostly add polypropylene masterbatch directly to the screw extruder, so that various impurities mixed with polypropylene masterbatch and particles that do not meet the requirements enter the screw extruder at the same time, affecting the quality of the meltblown cloth. In addition, the amount added is not uniform enough, resulting in poor melting effect, which also affects the quality of the meltblown cloth. Summary of the invention

[0004] The object of the present invention is to provide a masterbatch adding device for meltblown cloth processing and a method for using the same, which can remove iron impurities, dust, broken particles, polypropylene masterbatch with larger particle size and agglomerated polypropylene masterbatch clusters mixed in the polypropylene masterbatch, and is simple and convenient to operate, ensuring continuity. The feeding speed of the polypropylene masterbatch can be adjusted so that the polypropylene masterbatch can be continuously fed at a uniform speed to ensure the production quality of the meltblown cloth, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A masterbatch adding device for meltblown fabric processing comprises a box body, a box cover is arranged on the top of the box body, a feed hopper is fixed on the box cover, at least two pads are fixedly welded on the inner side wall of the box cover, and a magnet mechanism is arranged on the pads;

[0007] A dust removal screen is fixedly welded on the inner side wall of the box body, the dust removal screen is tilted, a fixing plate is fixedly welded on the free end of the dust removal screen, the other end of the fixing plate is fixedly welded on the inner side wall of the box body, and a first discharge pipe corresponding to the fixing plate is fixedly welded on the right side plate of the box body;

[0008] A filter screen is fixedly welded on the inner side wall of the box body, and the filter screen is arranged obliquely. A second discharge pipe corresponding to the filter screen is fixedly welded on the right side plate of the box body;

[0009] A feeding pipe is fixedly welded to the bottom of the left side plate of the box body, a support plate is fixedly welded to the feeding pipe, a plurality of connecting rods are threadedly connected to the support plate, a plurality of connecting rods are connected to baffles via a rotating mechanism, the baffles pass through the feeding pipe, and a plurality of legs are fixedly installed at the bottom of the box body.

[0010] Preferably, the magnet mechanism comprises two fixed frames and a plurality of magnetic bars, the two fixed frames are overlapped on the cushion block, and the plurality of magnetic bars are fixed between the two fixed frames at equal distances.

[0011] Preferably, at least two positioning grooves are provided on the outer surfaces of the left and right side panels of the box body, positioning blocks are arranged in the positioning grooves, positioning screw holes are provided on the fixed frame, and the positioning blocks are fixedly connected to the fixed frame through positioning screws and the positioning screw holes.

[0012] Preferably, a guide plate is fixedly welded on the inner wall of the box body, and the guide plate is located between the magnet mechanism and the dust removal screen.

[0013] Preferably, the dust removal screen and the filter screen are inclined in opposite directions.

[0014] Preferably, an inclined block is provided at the bottom of the box.

[0015] Preferably, the rotating mechanism comprises a step hole and a turntable, the step hole is provided on the baffle, the turntable is fixed on the connecting rod, and the turntable is rotatably connected in the step hole.

[0016] The present invention also provides a method for using a masterbatch adding device for meltblown fabric processing, comprising the following steps:

[0017] S1. Align the feeding tube with the feed port of the screw extruder, and then put the polypropylene masterbatch into the inner cavity of the box through the feed hopper on the box cover;

[0018] S2, polypropylene masterbatch is removed from the mixed iron impurities by the magnet mechanism and then falls on the dust removal screen;

[0019] S3, the mixed dust and broken particles are removed by the dust removal screen and then fall on the filter screen, and the mixed dust and broken particles are discharged through the first discharge pipe after passing through the fixed plate;

[0020] S4, the polypropylene masterbatch with larger particle size and the agglomerated polypropylene masterbatch are removed through the filter screen and then enter the feeding pipe, and the polypropylene masterbatch with larger particle size and the agglomerated polypropylene masterbatch are discharged through the second discharge pipe;

[0021] S5. The baffle is adjusted to a suitable height by adjusting the connecting rod on the support plate so that the feeding tube can keep feeding at a uniform speed. After the feeding is completed, the baffle completely blocks the feeding tube and stops feeding.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The iron impurities mixed in the polypropylene masterbatch can be removed by the magnet mechanism, and the magnet mechanism is installed through a pad, which is convenient for disassembly and assembly, and convenient for removing the iron impurities adsorbed thereon;

[0024] 2. The dust and broken particles mixed in the polypropylene masterbatch can be removed by the dust removal screen, which improves the cleanliness of the polypropylene masterbatch. The mixed dust and broken particles are discharged through the first discharge pipe after passing through the fixed plate. The operation is simple and convenient, and the continuity is guaranteed.

[0025] 3. The PP masterbatch with larger particle size and the agglomerated PP masterbatch can be removed through the filter screen, which can ensure the good melting degree of the PP masterbatch by the screw extruder. The PP masterbatch with larger particle size and the agglomerated PP masterbatch can be discharged through the second discharge pipe, which is simple and convenient to operate and ensures continuity.

[0026] 4. The baffle can be adjusted by adjusting the connecting rod, and then the feeding speed of the polypropylene masterbatch can be adjusted, so that the polypropylene masterbatch can be continuously fed at a uniform speed to ensure the production quality of the meltblown cloth. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the present invention;

[0028] Figure 2 It is a cross-sectional schematic diagram of the box body of the present invention;

[0029] Figure 3 For the present invention Figure 2 A is an enlarged schematic diagram;

[0030] Figure 4 It is a cross-sectional schematic diagram of the feeding pipe of the present invention;

[0031] Figure 5 For the present invention Figure 4 The enlarged schematic diagram of point B in FIG.

[0032] In the figure: 1. box body; 2. box cover; 3. feed hopper; 4. cushion block; 5. magnet mechanism; 501. fixed frame; 502. magnetic rod; 6. dust removal screen; 7. fixed plate; 8. first discharge pipe; 9. filter screen; 10. second discharge pipe; 11. feeding pipe; 12. support plate; 13. connecting rod; 14. rotating mechanism; 1401. step hole; 1402. turntable; 15. baffle; 16. support leg; 17. positioning groove; 18. positioning block; 19. positioning screw hole; 20. positioning screw; 21. guide plate; 22. inclined block. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments 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 creative work are within the scope of protection of the present invention.

[0034] See also Figure 1-5 , the present invention provides a technical solution:

[0035] A masterbatch adding device for meltblown fabric processing comprises a box body 1, a box cover 2 is arranged on the top of the box body 1, a feed hopper 3 is fixed on the box cover 2, at least two pads 4 are fixedly welded on the inner side wall of the box cover 2, and a magnet mechanism 5 is arranged on the pad 4;

[0036] The iron impurities mixed in the polypropylene masterbatch can be removed by the magnet mechanism 5, and the magnet mechanism 5 is installed through the cushion block 4, which is convenient for disassembly and assembly, and convenient for removing the iron impurities adsorbed thereon.

[0037] The magnet mechanism 5 includes two fixed frames 501 and multiple magnetic bars 502. The two fixed frames 501 are overlapped on the cushion block 4. The multiple magnetic bars 502 are equidistantly fixed between the two fixed frames 501. The magnetic bars 502 are made of a magnetic material with a magnetic induction intensity of 12000 to 13000 Gauss, so that the polypropylene masterbatch entering the inner cavity of the box body 1 through the feed hopper 3 needs to pass between the multiple magnetic bars 502. The magnetic bars 502 can effectively remove iron impurities mixed in the polypropylene masterbatch.

[0038] At least two positioning grooves 17 are provided on the outer surfaces of the left and right side panels of the box body 1, and positioning blocks 18 are arranged in the positioning grooves 17. Positioning screw holes 19 are provided on the fixed frame 501. The positioning blocks 18 are fixedly connected to the fixed frame 501 through positioning screws 20 and positioning screw holes 19. The fixed frame 501 is fixed by the cooperation of the positioning grooves 17, the positioning blocks 18 and the positioning screw holes 19, which facilitates the fixing of the fixed frame 501 and avoids displacement of the fixed frame 501 during use. The fixed frame 501 can be removed after removing the positioning screws 20.

[0039] A dust removal screen 6 is fixedly welded on the inner wall of the box body 1, and the dust removal screen 6 is tilted. A fixing plate 7 is fixedly welded on the free end of the dust removal screen 6, and the other end of the fixing plate 7 is fixedly welded on the inner wall of the box body 1. A first discharge pipe 8 corresponding to the fixing plate 7 is fixedly welded on the right side plate of the box body 1;

[0040] The dust and broken particles mixed in the polypropylene masterbatch can be removed by the dust removal screen 6, thereby improving the cleanliness of the polypropylene masterbatch, and the mixed dust and broken particles are discharged through the first discharge pipe 8 after passing through the fixed plate 7, which is simple and convenient to operate and ensures continuity.

[0041] A guide plate 21 is fixedly welded on the inner wall of the box body 1, and the guide plate 21 is located between the magnet mechanism 5 and the dust removal screen 6. The guide plate 21 can guide the polypropylene masterbatch so that the polypropylene masterbatch can fall on the higher end of the dust removal screen 6. The inclination directions of the dust removal screen 6 and the filter screen 9 are opposite, ensuring good dust removal and filtering effects.

[0042] A filter screen 9 is fixedly welded on the inner wall of the box body 1, and the filter screen 9 is arranged obliquely. A second discharge pipe 10 corresponding to the filter screen 9 is fixedly welded on the right side plate of the box body 1;

[0043] The polypropylene masterbatch with larger particle size and the agglomerated polypropylene masterbatch clusters can be removed by the filter screen 9, which can ensure the good melting degree of the polypropylene masterbatch by the screw extruder, and the polypropylene masterbatch with larger particle size and the agglomerated polypropylene masterbatch clusters are discharged through the second discharge pipe 10, which is simple and convenient to operate and ensures continuity.

[0044] A feeding pipe 11 is fixedly welded to the bottom of the left side plate of the box body 1, a support plate 12 is fixedly welded to the feeding pipe 11, a plurality of connecting rods 13 are threadedly connected to the support plate 12, a baffle 15 is connected to the plurality of connecting rods 13 through a rotating mechanism 14, the baffle 15 passes through the feeding pipe 11, and a plurality of legs 16 are fixedly installed at the bottom of the box body 1;

[0045] The baffle 15 can be adjusted by adjusting the connecting rod 13, and then the feeding speed of the polypropylene masterbatch can be adjusted, so that the polypropylene masterbatch can be continuously fed at a uniform speed to ensure the production quality of the meltblown cloth.

[0046] An inclined block 22 is provided at the bottom of the box body 1, which can allow the polypropylene masterbatch to be completely discharged from the feeding pipe 11. The rotating mechanism 14 includes a step hole 1401 and a turntable 1402. The step hole 1401 is opened on the baffle 15, and the turntable 1402 is fixed on the connecting rod 13. The turntable 1402 is rotatably connected in the step hole 1401, so that when the connecting rod 13 rotates, the baffle 15 does not need to rotate accordingly.

[0047] The present invention also provides a method for using a masterbatch adding device for meltblown fabric processing, comprising the following steps:

[0048] S1, align the feeding tube 11 with the feeding port of the screw extruder, and then put the polypropylene masterbatch into the inner cavity of the box body 1 through the feeding hopper 3 on the box cover 2;

[0049] S2, the polypropylene masterbatch is removed from the mixed iron impurities by the magnet mechanism 5 and then falls on the dust removal screen 6;

[0050] S3, the mixed dust and broken particles are removed by the dust removal screen 6 and then fall on the filter screen 9, where the mixed dust and broken particles are discharged through the first discharge pipe 8 after passing through the fixed plate 7;

[0051] S4, the polypropylene masterbatch with larger particle size and the agglomerated polypropylene masterbatch are removed through the filter screen 9 and then enter the feeding pipe 11, and the polypropylene masterbatch with larger particle size and the agglomerated polypropylene masterbatch are discharged through the second discharge pipe 10;

[0052] S5. The baffle 15 is adjusted to a suitable height by adjusting the connecting rod 13 on the support plate 12 so that the feeding pipe 11 can keep feeding at a uniform speed. After the feeding is completed, the baffle 15 completely blocks the feeding pipe 11 and stops feeding.

[0053] In summary, the magnet mechanism 5 can remove the iron impurities mixed in the polypropylene masterbatch, and the magnet mechanism 5 is installed through the pad 4, which is convenient for disassembly and assembly, and convenient for removing the iron impurities adsorbed thereon. The dust and broken particles mixed in the polypropylene masterbatch can be removed by the dust removal screen 6, thereby improving the cleanliness of the polypropylene masterbatch, and the mixed dust and broken particles are discharged through the first discharge pipe 8 after passing through the fixed plate 7. The operation is simple and convenient, and continuity is ensured. The polypropylene masterbatch with larger particle size and the agglomerated polypropylene masterbatch group can be removed by the filter screen 9, which can ensure the good melting degree of the screw extruder for the polypropylene masterbatch, and the polypropylene masterbatch with larger particle size and the agglomerated polypropylene masterbatch group are discharged through the second discharge pipe 10. The operation is simple and convenient, and continuity is ensured. The baffle 15 can be adjusted by adjusting the connecting rod 13, and then the feeding speed of the polypropylene masterbatch can be adjusted, so that the polypropylene masterbatch is continuously fed at a uniform speed to ensure the production quality of the meltblown cloth.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A masterbatch adding device for meltblown fabric processing, comprising a housing (1), characterized in that: A box cover (2) is provided on the top of the box body (1), a feed hopper (3) is fixed on the box cover (2), at least two cushion blocks (4) are fixedly welded on the inner side wall of the box cover (2), and a magnet mechanism (5) is provided on the cushion blocks (4); The magnet mechanism (5) comprises two fixed frames (501) and a plurality of magnetic bars (502), the two fixed frames (501) are overlapped on the cushion block (4), the plurality of magnetic bars (502) are fixed between the two fixed frames (501) at equal distances, at least two positioning grooves (17) are provided on the outer surfaces of the left and right side panels of the box body (1), a positioning block (18) is provided in the positioning groove (17), a positioning screw hole (19) is provided on the fixed frame (501), and the positioning block (18) is fixedly connected to the fixed frame (501) via a positioning screw (20) and the positioning screw hole (19); A dust removal screen (6) is fixedly welded to the inner side wall of the box body (1), the dust removal screen (6) is arranged obliquely, a fixing plate (7) is fixedly welded to the free end of the dust removal screen (6), the other end of the fixing plate (7) is fixedly welded to the inner side wall of the box body (1), and a first discharge pipe (8) corresponding to the fixing plate (7) is fixedly welded to the right side plate of the box body (1); A filter screen (9) is fixedly welded on the inner side wall of the box body (1), and the filter screen (9) is arranged at an angle. A second discharge pipe (10) corresponding to the filter screen (9) is fixedly welded on the right side plate of the box body (1), and the dust removal screen (6) and the filter screen (9) are inclined in opposite directions. A feeding pipe (11) is fixedly welded to the bottom of the left side plate of the box body (1), a support plate (12) is fixedly welded to the feeding pipe (11), a plurality of connecting rods (13) are threadedly connected to the support plate (12), a plurality of connecting rods (13) are connected to baffles (15) via a rotating mechanism (14), the baffles (15) pass through the feeding pipe (11), and a plurality of legs (16) are fixedly mounted to the bottom of the box body (1); The rotating mechanism (14) comprises a stepped hole (1401) and a rotating disk (1402); the stepped hole (1401) is provided on the baffle (15); the rotating disk (1402) is fixed on the connecting rod (13); and the rotating disk (1402) is rotatably connected in the stepped hole (1401).

2. A masterbatch adding device for meltblown fabric processing according to claim 1, characterized in that: A guide plate (21) is fixedly welded to the inner wall of the box body (1), and the guide plate (21) is located between the magnet mechanism (5) and the dust removal screen (6).

3. A masterbatch adding device for meltblown fabric processing according to claim 1, characterized in that: An inclined block (22) is provided at the bottom of the box body (1).

4. A method for using the masterbatch adding device for meltblown fabric processing according to claim 1, characterized in that: The steps include: S1, align the feeding tube (11) with the feeding port of the screw extruder, and then feed the polypropylene masterbatch into the inner cavity of the box body (1) through the feeding hopper (3) on the box cover (2); S2, polypropylene masterbatch is removed from the mixed iron impurities by the magnet mechanism (5) and then falls on the dust removal screen (6); S3, the mixed dust and broken particles are removed by the dust removal screen (6) and fall onto the filter screen (9), wherein the mixed dust and broken particles are discharged through the fixed plate (7) and the first discharge pipe (8); S4, the polypropylene masterbatch with larger particle size and the agglomerated polypropylene masterbatch are removed through the filter screen (9) and then enter the feeding pipe (11), and the polypropylene masterbatch with larger particle size and the agglomerated polypropylene masterbatch are discharged through the second discharge pipe (10); S5. The baffle plate (15) is adjusted to a suitable height by adjusting the connecting rod (13) on the support plate (12), so that the feeding pipe (11) can be fed at a uniform speed. After the feeding is completed, the baffle plate (15) completely blocks the feeding pipe (11) and stops feeding.

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