CN214224884U

CN214224884U - Device for increasing filtering efficiency of mask

Info

Publication number: CN214224884U
Application number: CN202023186142.1U
Authority: CN
Inventors: 吴承龙; 曲艳玲; 章丽燕
Original assignee: Hangzhou Tiancheng Pharmaceutical Co ltd
Current assignee: Hangzhou Tiancheng Pharmaceutical Co ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-09-17
Anticipated expiration: 2030-12-25

Abstract

The utility model discloses a device for increasing the filtering efficiency of a mask, which comprises a frame, support legs arranged on the frame, a conveyor belt mechanism arranged on the frame, an electrostatic electret mechanism arranged on the frame, a cleaning mechanism arranged on the frame and a collecting mechanism arranged on the frame; the electrostatic electret mechanism comprises a support, a power-on column arranged on the support, a first fixed block arranged on the support, a groove arranged on the first fixed block, a baffle frame arranged on the first fixed block, a clamping assembly arranged on the power-on column, a molybdenum wire arranged on the first fixed block, a second fixed block arranged on the molybdenum wire and a limiting assembly arranged on the power-on column.

Description

Device for increasing filtering efficiency of mask

Technical Field

The utility model belongs to the technical field of the gauze mask production, especially, relate to an increase gauze mask filtration efficiency's device.

Background

The filtration efficiency of gauze mask mainly by melting and spout the non-woven fabrics and decide, actually melt the filtration performance of melt-blown non-woven fabrics itself and reach 70% at most, and according to the national requirement, the bacterium filtration efficiency of disposable medical gauze mask can not be less than 95% to melt and spout the raw materials because long-time storage in the warehouse, contact with the metal in the production process, lead to a large amount of static to run off, lead to the filtration efficiency of gauze mask can not reach the requirement.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an overcome prior art not enough, provide an easy operation's increase gauze mask filtration efficiency's device.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a device for increasing the filtering efficiency of a mask comprises a rack, support legs arranged on the rack, a conveyor belt mechanism arranged on the rack, an electrostatic electret mechanism arranged on the rack, a cleaning mechanism arranged on the rack and a collecting mechanism arranged on the rack; the electrostatic electret mechanism comprises a bracket, a power-on column arranged on the bracket, a first fixed block arranged on the bracket, a groove arranged on the first fixed block, a baffle frame arranged on the first fixed block, a clamping component arranged on the power-on column, a molybdenum wire arranged on the first fixed block, a second fixed block arranged on the molybdenum wire and a limiting component arranged on the power-on column; after the mask is produced, secondary electrostatic electret is carried out on the mask through molybdenum wires on a support on a rack, so that the mask can meet the requirement of filtering efficiency when leaving a factory; the molybdenum wire exposed outside for a long time can be oxidized, and the molybdenum wire is pulled out of the electrifying column for replacement through the limiting component by pulling the second fixing block outwards; the blocking frame can prevent polarized ions from scattering at the upper end of the molybdenum wire, so that corona can be generated on the surface of the melt-blown fabric well.

Furthermore, the clamping assembly comprises a clamping block, a clamping block spring arranged on the clamping block and a clamping block sliding groove arranged on the power-on column; the first fixing block can be fixed by clamping and matching the clamping block with the groove on the first fixing block.

Furthermore, the limiting assembly comprises a baffle, a rotating shaft arranged on the electrifying column and a limiting plate arranged on the rotating shaft; can be on the limiting plate through the baffle, alright restriction second fixed block outwards removes.

Further, the conveyor belt mechanism comprises a conveyor motor, a driving wheel arranged on the conveyor motor, a conveyor belt arranged on the driving wheel, a limiting strip arranged on the conveyor belt and a driven wheel arranged on the conveyor belt; the limiting strips uniformly arranged on the conveying belt can prevent the mask from rapidly passing below the molybdenum wires due to gravity or the conveying force of the conveying belt, so that the mask is fully electrostatically electret.

Furthermore, the cleaning mechanism comprises a rotating motor, a first hairbrush arranged on the rotating motor, a second hairbrush assembly arranged on the rack and a supporting chute arranged on the rack; the rotating motor drives the first brush to rotate to clean the flat part of the conveying belt.

Furthermore, the second brush component comprises a second brush, a rotating shaft arranged on the second brush, a supporting block arranged on the supporting chute and a supporting spring arranged on the supporting block; the second brush is extruded through the limiting strips on the conveying belt, the second brush is rotated, the supporting block is extruded by the second brush to move downwards through the extrusion force of the limiting strips on the second brush, the limiting strips can be prevented from being repeatedly extruded to damage the brush, and the service life of the second brush is prolonged.

Furthermore, the collecting mechanism comprises a collecting box, a first scraper arranged on the collecting box, a second scraper arranged on the collecting box, a handle arranged on the collecting box, a support bar arranged on the rack, a fixed groove arranged on the rack, a stop block groove arranged on the rack and a stop block spring arranged on the stop block; the first scraper on the collecting box can clean sundries scraped on the first brush, and the second scraper can clean sundries scraped on the second brush; the sundries scraped off fall into the collecting box through gravity, and when the collecting box needs to be cleaned, the collecting box can be pulled out for cleaning through pulling the stop dog after the stop dog is completely retracted into the stop dog groove.

In summary, the utility model can perform secondary electrostatic electret on the mask through the arrangement of the electrostatic electret mechanism, so that the mask can meet the requirement of filtration efficiency when leaving factory; through the setting of clearance mechanism, debris such as waste material and the silk that produce in can clearing up the drive belt mechanism last gauze mask manufacturing process prevent that debris from gluing on the gauze mask and influencing the gauze mask quality.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a front view of the present invention.

Fig. 3 is a cross-sectional view taken at a-a of fig. 2.

Fig. 4 is an enlarged view of fig. 3 at D.

Fig. 5 is a sectional view taken at B-B of fig. 2.

Fig. 6 is an enlarged view of fig. 5 at E.

Fig. 7 is a sectional view at C-C of fig. 2.

Fig. 8 is an enlarged view of fig. 7 at F.

Detailed Description

As shown in fig. 1-8, a device for increasing the filtering efficiency of a mask comprises a frame 1, support legs 10, a conveyor belt mechanism, an electrostatic electret mechanism, a cleaning mechanism and a collecting mechanism; the support legs 10 are positioned below the frame 1; the middle position of the conveyor belt mechanism and the frame 1; the electrostatic electret mechanism is positioned above the frame 1; the cleaning mechanism is positioned below the end part of the frame 1; the collecting mechanism is positioned below the cleaning mechanism.

Specifically, the electrostatic electret mechanism comprises a bracket 2, a power-on column 20, a first fixing block 21, a groove 22, a blocking frame 23, a clamping assembly, a molybdenum wire 24, a second fixing block 25 and a limiting assembly; the bracket 2 is positioned above the middle position of the frame 1; the electrifying column 20 is fixedly connected to the bottom surface of the bracket 2; one end of the molybdenum wire 24 is fixedly connected to the first fixed block 21, and the other end is fixedly connected to the second fixed block 25; the grooves 22 are positioned on two side walls of the first fixing block 21; the baffle frame 23 is positioned at the upper end of the molybdenum wire 24 and is fixedly connected between the first fixed block 21 and the second fixed block 25; the clamping component comprises a clamping block 26, a clamping block spring 27 and a clamping block sliding groove 28; the latch 26 can slide in a latch sliding slot 28 on the electrifying column 20; one end of the fixture block spring 27 is fixedly connected to the bottom end of the fixture block 26, and the other end is fixedly connected to the inner wall of the fixture block sliding groove 28; the limiting assembly comprises a baffle 3, a rotating shaft 30 and a limiting plate 31; the baffle 3 can rotate on the rotating shaft 30, and the limiting plate 31 is positioned on the outer wall of the second fixing block 25.

Specifically, the conveyor belt mechanism comprises a conveyor motor 4, a driving wheel 40, a conveyor belt 41, a limiting strip 42 and a driven wheel 43; the conveying motor 4 is fixedly connected to the side wall of the rack 1, one end of the driving wheel 40 is fixedly connected to the rotating end of the conveying motor 4, and the other end of the driving wheel can rotate on the rack 1; the driven wheel 43 can rotate on the frame 1; the transmission belt 41 is sleeved on the driving wheel 40 and the driven wheel 43; the spacing strips 42 are arranged uniformly on the conveyor belt 41.

Specifically, the cleaning mechanism comprises a rotating motor 5, a first brush 50, a second brush assembly and a supporting chute 51; the rotating motor 5 is fixedly connected to the outer wall of the frame 1; one end of the first brush 50 is fixedly connected with the movable end of the rotating motor 5, and the other end can rotate on the frame 1; the second brush assembly comprises a second brush 55, a rotating shaft 52, a supporting block 53 and a supporting spring 54; the second brush 55 can rotate on the frame 1 through the rotating shaft 52; the supporting block 52 can slide in the supporting chute 51, one end of the supporting block abuts against the rotating shaft 52, the other end of the supporting block is fixedly connected to the supporting spring 54, and the other end of the supporting spring 54 is fixedly connected to the bottom surface of the supporting chute 51;

specifically, the collecting mechanism comprises a collecting box 6, a first scraper 60, a second scraper 61, a handle 62, a supporting bar 11, a fixing groove 12, a stop 63, a stop groove 64 and a stop spring 65; the collecting box 6 slides into the frame 1 through the fixing groove 12 and the supporting bar 11 at the bottom, and the first scraper 60 is located at the boundary of the collecting box 6; the second scraper 61 is located in the middle of the collection box 6; the handle 62 is positioned on the outer wall of the collecting chamber 6; the stop block 63 can slide in a stop block groove 64 on the frame 1; the stopper spring 65 has one end fixedly coupled to the rear wall of the stopper 63 and the other end fixedly coupled to the side wall of the stopper groove 64.

The working principle is as follows: after the mask is produced, secondary electrostatic electret is supplied to the mask through the molybdenum wire 24 on the bracket 2 on the machine frame 1, so that the mask can meet the requirement of filtering efficiency when leaving factory; the molybdenum wire 24 exposed outside for a long time can be oxidized, and the molybdenum wire 24 is pulled out of the electrifying column 20 for replacement by pulling the second fixed block 25 outwards through the rotary baffle 3; the limiting strips 42 uniformly arranged on the conveyor belt 41 can prevent the mask from rapidly passing below the molybdenum wires 24 due to gravity or the conveying force of the conveyor belt 41, so that the mask is fully electrostatically electret; the first brush 50 is driven by the rotating motor 5 to rotate, so that the flat part of the conveyor belt 41 can be cleaned; the second brush 55 is extruded by the limiting strip 42 on the conveyor belt 41, so that the second brush 55 rotates to clean the rest part of the conveyor belt, the first scraper 60 on the collecting box 6 can clean the sundries scraped on the first brush 50, and the second scraper 61 can clean the sundries scraped on the second brush 55; the scraped sundries fall into the collecting box 6 through gravity, and when the collecting box 6 needs to be cleaned, the stop 63 can be pulled to enable the stop 63 to be completely retracted into the stop groove 64, and then the collecting box 6 is pulled out for cleaning through the pulling handle 62.

Claims

1. A device for increasing the filtering efficiency of a mask comprises a rack (1), support legs (10) arranged on the rack, a conveyor belt mechanism arranged on the rack, an electrostatic electret mechanism arranged on the rack, a cleaning mechanism arranged on the rack and a collecting mechanism arranged on the rack; the method is characterized in that: the electrostatic electret mechanism comprises a support (2), a power-on column (20) arranged on the support, a first fixed block (21) arranged on the support, a groove (22) arranged on the first fixed block, a blocking frame (23) arranged on the first fixed block, a clamping assembly arranged on the power-on column, a molybdenum wire (24) arranged on the first fixed block, a second fixed block (25) arranged on the molybdenum wire and a limiting assembly arranged on the power-on column.

2. The device for increasing the filtering efficiency of a respirator according to claim 1, wherein: the clamping assembly comprises a clamping block (26), a clamping block spring (27) arranged on the clamping block and a clamping block sliding groove (28) arranged on the power-on column.

3. The device for increasing the filtering efficiency of a respirator according to claim 1, wherein: the limiting assembly comprises a baffle (3), a rotating shaft (30) arranged on the power-on column and a limiting plate (31) arranged on the rotating shaft.

4. The device for increasing the filtering efficiency of a respirator according to claim 1, wherein: the conveying belt mechanism comprises a conveying motor (4), a driving wheel (40) arranged on the conveying motor, a conveying belt (41) arranged on the driving wheel, a limiting strip (42) arranged on the conveying belt and a driven wheel (43) arranged on the conveying belt.

5. The device for increasing the filtering efficiency of a respirator according to claim 1, wherein: the cleaning mechanism comprises a rotating motor (5), a first hairbrush (50) arranged on the rotating motor, a second hairbrush component arranged on the rack and a supporting sliding groove (51) arranged on the rack.

6. The device of claim 5 for increasing the filtration efficiency of a respirator comprising: the second brush component comprises a second brush (55), a rotating shaft (52) arranged on the second brush, a supporting block (53) arranged on the supporting chute and a supporting spring (54) arranged on the supporting block.

7. The device for increasing the filtering efficiency of a respirator according to claim 1, wherein: the collecting mechanism comprises a collecting box (6), a first scraper (60) arranged on the collecting box, a second scraper (61) arranged on the collecting box, a handle (62) arranged on the collecting box, a support bar (11) arranged on the rack, a fixing groove (12) arranged on the rack, a stop block (63) arranged on the rack, a stop block groove (64) arranged on the rack and a stop block spring (65) arranged on the stop block.