CN220877956U

CN220877956U - Filter of polyurethane resin

Info

Publication number: CN220877956U
Application number: CN202322681398.7U
Authority: CN
Inventors: 沈雁宾; 孙世文; 朱晨阳; 徐欣欣; 石磊; 纪尚超
Original assignee: ZHEJIANG HEXIN TECHNOLOGY CO LTD; Taizhou Hexin Polymer New Material Co ltd
Current assignee: ZHEJIANG HEXIN TECHNOLOGY CO LTD; Taizhou Hexin Polymer New Material Co ltd
Priority date: 2023-09-28
Filing date: 2023-09-28
Publication date: 2024-05-03
Anticipated expiration: 2033-09-28

Abstract

The application relates to a polyurethane resin filter, which comprises a filter box with an inner cavity, wherein a feed inlet and a discharge outlet which are communicated with the inner cavity and the outside are formed in the circumferential side wall of the filter box, the polyurethane resin filter also comprises a scraping mechanism, the scraping mechanism is used for cleaning the side wall of the inner cavity, the scraping mechanism comprises a scraping ring, a first filter screen and a driving assembly, the scraping ring is abutted against the side wall of the inner cavity, the scraping ring is coaxially and fixedly connected to the first filter screen, the first filter screen is connected to the inner cavity in a sliding manner in the vertical direction, a drain outlet which is communicated with the inner cavity and the outside is formed in the bottom wall of the filter box, and the driving assembly is used for driving the first filter screen to slide. The first filter screen removes to drain one side, filters the product of intracavity, and the scraping ring scrapes the inner chamber lateral wall, and when first filter screen moved to the discharge gate downside, the discharge gate was opened and the product after filtering was discharged, and after the product was discharged, the drain was opened again and is discharged impurity, makes the separation of impurity and the product after filtering in the bucket, reduces product and impurity together exhaust possibility.

Description

Filter of polyurethane resin

Technical Field

The utility model relates to the technical field of polyurethane resin production, in particular to a polyurethane resin filter.

Background

The aqueous polyurethane resin is polyurethane using water as a dispersion medium. The application of the polyurethane is continuously expanded from leather finishing agents to the fields of coating, adhesives and the like, and the polyurethane gradually occupies the market of solvent polyurethane, and represents the development direction of the coating and the adhesives. In the preparation process of the aqueous polyurethane resin, the prepared liquid is required to be filtered to remove the impurities in the aqueous polyurethane resin, but the impurities adhered to the filter screen and the inner wall after filtration are required to be cleaned due to the high viscosity of the aqueous polyurethane resin, so that the aqueous polyurethane resin is quite inconvenient.

The utility model with the bulletin number of CN215609816U relates to a filter for aqueous polyurethane resin, which comprises a filter tank, wherein a first motor is fixed at the top of the filter tank through screws, a connecting shaft is sleeved at the output end of the first motor, a connecting rod is welded on the surface of the connecting shaft, a filter vat is welded at the end part of the connecting rod, a clamping ring is welded at the outer side of the filter vat, a first gear is connected at the outer side of the bottom of the connecting shaft through a bearing, a second motor is fixed at the bottom of the outer side of the filter tank through screws, a second gear is sleeved at the output end of the second motor, a mounting rod is welded on the upper surface of the first gear, and a first bracket and a second bracket are welded at two sides of the mounting rod respectively.

According to the filter in the technical scheme, the first scraping plate and the second scraping plate are driven to respectively clean the inner wall of the filter tank and the outer wall of the filter barrel through the first gear, the second gear and the second motor, impurities on the inner wall of the filter tank and the outer wall of the filter barrel after cleaning are discharged together with filtered resin water, and the resin water can be mixed with the impurities, so that the filtration effect is not achieved.

Disclosure of utility model

The application provides a polyurethane resin filter, in order to separate impurities in the filter from filtered resin.

The application provides a polyurethane resin filter which adopts the following technical scheme:

The utility model provides a polyurethane resin's filter, includes the rose box that has the inner chamber, feed inlet and the discharge gate of intercommunication inner chamber and external are seted up on the rose box circumference lateral wall, still include to scrape and wipe the mechanism, it is used for clearing up the inner chamber lateral wall to scrape and wipe the mechanism, scrape and wipe the mechanism including scraping ring, first filter screen and drive assembly, scrape ring and inner chamber lateral wall looks butt, scrape the coaxial and fixed connection of ring on first filter screen, first filter screen is along vertical direction sliding connection on the inner chamber, set up the drain of intercommunication inner chamber and external on the rose box diapire, drive assembly is used for driving the slip of first filter screen.

Through adopting above-mentioned technical scheme, firstly remove first filter screen to the top, pour into polyurethane resin into the inner chamber into again, then remove to drain one side through drive assembly drive first filter screen, polyurethane resin in the first filter screen inner chamber filters, the scraping ring scrapes the inner chamber lateral wall, when first filter screen removes to the discharge gate downside, can open the polyurethane resin after the discharge gate discharge filtration, after polyurethane resin discharge, open the drain again and scrape impurity and the impurity of filtration out and discharge down the inner chamber lateral wall, make the separation of interior impurity of rose box and polyurethane resin after the filtration, reduce polyurethane resin and impurity together exhaust possibility.

Preferably, the drive assembly comprises a first motor, a driving gear, a driven gear and a threaded rod, one end of the threaded rod is fixedly connected to the first filter screen, the other end of the threaded rod penetrates through the filter box and is in threaded connection with the driven gear, the first motor is fixedly connected to the filter box, the driving gear is coaxial and is fixedly connected to a first output shaft, and the driving gear is in meshed connection with the driven gear.

Through adopting above-mentioned technical scheme, first motor operation drives driving gear wheel and rotates, is connected through the meshing of driving gear and driven gear, makes driven gear rotate, is through the threaded connection between driven gear and the threaded rod, makes the threaded rod follow its axis direction and removes to make first filter screen slip.

Preferably, the distance from one side of the scraping ring close to the first filter screen to one side of the scraping ring far away from the first filter screen to the bottom wall of the inner cavity is gradually reduced.

Through adopting above-mentioned technical scheme, play the guide effect to the impurity after striking off, strike off the ring behind the impurity on striking off the inner chamber lateral wall, make it remove towards first filter screen one side, reduce and strike up impurity or impurity attached possibility on the ring.

Preferably, the first filter screen is provided with an impeller, the impeller is rotationally connected to the first filter screen along the axial direction of the first filter screen, and the impeller is abutted to the first filter screen.

Through adopting above-mentioned technical scheme, drive the impeller through rivers and rotate, when reducing the resistance when first filter screen removes, the impurity on the first filter screen can be scraped to the blade of impeller, reduces the possibility that first filter screen blockked up.

Preferably, the polyurethane resin pressing device further comprises a pressing mechanism, the pressing mechanism is used for discharging polyurethane resin, the pressing mechanism comprises a pressing plate and a driving piece, the circumferential side wall of the pressing plate is in butt joint with the circumferential side wall of the inner cavity, the pressing plate is connected to the inner cavity in a sliding mode in the vertical direction, and the driving piece is used for driving the pressing plate to slide.

Through adopting above-mentioned technical scheme, through the removal of driving piece drive holding down plate, make the holding down plate press polyurethane resin towards discharge gate one side flow, reduce the possibility that the discharge gate was blockked up to scrape the polyurethane resin that sagging on the inner chamber lateral wall, reduce the possibility that the inner chamber lateral wall produced impurity.

Preferably, the driving piece comprises a telescopic cylinder, the telescopic cylinder is fixedly connected to the filter box, and one end of a piston rod of the telescopic cylinder penetrates through the filter box and is fixedly connected to the lower pressing plate.

Through adopting above-mentioned technical scheme, through the flexible of the piston rod on the flexible cylinder, make the holding down plate remove.

Preferably, the drain outlet is provided with a drain pipe, the drain pipe is provided with a collecting pipe, the collecting pipe is provided with a second filter screen, and the second filter screen is abutted to the side wall of the drain pipe.

Through adopting above-mentioned technical scheme, filter from drain exhaust polyurethane resin, make impurity flow to the collecting pipe, polyurethane resin filters once more from the drain backward flow to the feed inlet.

The technical effects of the utility model are mainly as follows:

1. According to the utility model, the first filter screen is moved to the top, polyurethane resin is injected into the inner cavity, the first filter screen is driven to move to one side of the sewage outlet through the driving component, polyurethane resin in the inner cavity of the first filter screen is filtered, the scraping ring scrapes the side wall of the inner cavity, when the first filter screen moves to the lower side of the discharging hole, the discharging hole can be opened to discharge the filtered polyurethane resin, after the polyurethane resin is discharged, the sewage outlet is opened to discharge the impurities scraped and filtered out of the side wall of the inner cavity, so that the impurities in the filter box are separated from the filtered polyurethane resin, and the possibility that the polyurethane resin and the impurities are discharged together is reduced;

2. According to the utility model, the lower pressing mechanism is arranged, and the lower pressing plate is driven to move by the driving piece, so that the lower pressing plate presses the polyurethane resin to flow towards one side of the discharge hole, the possibility of blockage of the discharge hole is reduced, the polyurethane resin sagging on the side wall of the inner cavity is scraped, and the possibility of impurity generation on the side wall of the inner cavity is reduced;

3. According to the utility model, the collecting pipe and the second filter screen are arranged to filter polyurethane resin discharged from the sewage outlet, so that impurities flow to the collecting pipe.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application.

FIG. 2 is a schematic view of a wiping mechanism according to an embodiment of the application.

Fig. 3 is an enlarged view at a in fig. 1.

Fig. 4 is a schematic view of a first filter structure according to an embodiment of the application.

FIG. 5 is a schematic diagram of a driving assembly according to an embodiment of the present application.

Fig. 6 is an enlarged view at B in fig. 5.

Reference numerals illustrate: 1. a filter box; 11. an inner cavity; 12. a feed inlet; 13. a discharge port; 14. a sewage outlet; 141. a blow-down pipe; 142. a collection pipe; 143. a second filter screen; 2. a wiping mechanism; 21. a scraping ring; 22. a first filter screen; 221. an impeller; 23. a drive assembly; 231. a first motor; 232. a drive gear; 233. a driven gear; 234. a threaded rod; 3. a pressing mechanism; 31. a lower pressing plate; 32. a driving member; 321. and a telescopic cylinder.

Detailed Description

The present application will be further described in detail below with reference to fig. 1-6, so that the technical solution of the present application can be more easily understood and mastered.

The embodiment of the application discloses a polyurethane resin filter.

Referring to fig. 1-6, a polyurethane resin filter of this embodiment includes a filter box 1 with an inner cavity 11, a feed inlet 12 and a discharge outlet 13 which are communicated with the inner cavity 11 and the outside are formed in a circumferential side wall of the filter box 1, a scraping mechanism 2 is further included, the scraping mechanism 2 is used for cleaning the side wall of the inner cavity 11 and a filter screen, the scraping mechanism 2 includes a scraping ring 21, a first filter screen 22 and a driving component 23, the scraping ring 21 is abutted against the side wall of the inner cavity 11, the scraping ring 21 is coaxial and fixedly connected to the first filter screen 22, the first filter screen 22 is slidingly connected to the inner cavity 11 along a vertical direction, a drain 14 which is communicated with the inner cavity 11 and the outside is formed in a bottom wall of the filter box 1, and the driving component 23 is used for driving sliding of the first filter screen 22.

Referring to fig. 1 to 6, the first filter screen 22 is moved to the top, polyurethane resin is injected into the inner cavity 11, the first filter screen 22 is driven to move to the sewage drain 14 side by the driving component 23, polyurethane resin in the inner cavity 11 of the first filter screen 22 is filtered, the scraping ring 21 scrapes the side wall of the inner cavity 11, when the first filter screen 22 moves to the lower side of the discharging hole 13, the discharging hole 13 can be opened to discharge the filtered polyurethane resin, after the polyurethane resin is discharged, the sewage drain 14 is opened to discharge the impurities scraped and filtered impurities from the side wall of the inner cavity 11, so that the impurities in the filtering box 1 are separated from the filtered polyurethane resin, and the possibility that the polyurethane resin and the impurities are discharged together is reduced.

Referring to fig. 1-6, the driving assembly 23 includes a first motor 231, a driving gear 232, a driven gear 233 and a threaded rod 234, one end of the threaded rod 234 is fixedly connected to the first filter screen 22, the other end of the threaded rod 234 penetrates through the filter box 1 and is in threaded connection with the driven gear 233, the first motor 231 is fixedly connected to the filter box 1, the driving gear 232 is coaxially and fixedly connected to a first output shaft, and the driving gear 232 is in meshed connection with the driven gear 233. The first motor 231 operates to drive the driving gear 232 to rotate, the driven gear 233 is rotated by the meshing connection of the driving gear 232 and the driven gear 233, and the threaded rod 234 is moved in the axial direction thereof by the threaded connection between the driven gear 233 and the threaded rod 234, so that the first filter 22 is slid.

Referring to fig. 1 to 6, the distance from the bottom wall of the cavity 11 from the side of the scraper ring 21 close to the first filter screen 22 to the side far from the first filter screen 22 becomes gradually smaller. The scraping ring 21 is used for guiding the scraped impurities, and after the scraping ring 21 is used for scraping the impurities on the side wall of the inner cavity 11, the scraping ring moves towards one side of the first filter screen 22, so that the possibility of stacking the impurities or adhering the impurities on the scraping ring 21 is reduced.

Referring to fig. 1 to 6, an impeller 221 is coaxially and rotatably connected to the first filter 22 in a moving direction of the first filter 22, and blades of the impeller 221 are abutted against the first filter 22. The impeller 221 is driven to rotate by the water flow, so that the resistance of the first filter screen 22 during moving is reduced, and meanwhile, the blades of the impeller 221 can scrape impurities on the first filter screen 22, so that the possibility of blocking the first filter screen 22 is reduced.

Referring to fig. 1-2, the device further comprises a pressing mechanism 3, the pressing mechanism 3 is used for discharging polyurethane resin, the pressing mechanism 3 comprises a pressing plate 31 and a driving piece 32, the circumferential side wall of the pressing plate 31 is abutted against the circumferential side wall of the inner cavity 11, the pressing plate 31 is connected to the inner cavity 11 in a sliding manner along the vertical direction, and the driving piece 32 is used for driving the pressing plate 31 to slide. The lower pressing plate 31 is driven to move by the driving piece 32, so that the lower pressing plate 31 presses polyurethane resin to flow towards one side of the discharge hole 13, the possibility of blockage of the discharge hole 13 is reduced, the polyurethane resin sagging on the side wall of the inner cavity 11 is scraped, and the possibility of impurities generated on the side wall of the inner cavity 11 is reduced.

Referring to fig. 1-2, the driving member 32 includes a telescopic cylinder 321, the telescopic cylinder 321 is fixedly connected to the filter box 1, and one end of a piston rod of the telescopic cylinder 321 penetrates through the filter box 1 and is fixedly connected to the lower pressure plate 31. The lower platen 31 is moved by the extension and contraction of the piston rod on the extension and contraction cylinder 321.

Referring to fig. 1-3, a drain pipe 141 is fixedly connected to the drain port 14, a collecting pipe 142 is fixedly connected to the drain pipe 141, a second filter screen 143 is fixedly connected to the collecting pipe 142, the second filter screen 143 is abutted against the side wall of the drain pipe 141, and the end, close to the collecting pipe 142, of the second filter screen 143 is gradually close to the drain port 14 from one end, far away from the collecting pipe 142. The polyurethane resin discharged from the drain port 14 is filtered, and impurities are caused to flow into the collection pipe 142, and the polyurethane resin is returned from the drain pipe 141 to the feed port 12 for further filtration.

Of course, the above is only a typical example of the application, and other embodiments of the application are also possible, and all technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of the application claimed.

Claims

1. The utility model provides a polyurethane resin's filter, includes rose box (1) that has inner chamber (11), feed inlet (12) and discharge gate (13) that communicate inner chamber (11) and external are seted up on rose box (1) circumference lateral wall, its characterized in that: still include scraping mechanism (2), scraping mechanism (2) are used for clearing up inner chamber (11) lateral wall, scraping mechanism (2) are including scraping ring (21), first filter screen (22) and drive assembly (23), scrape ring (21) and inner chamber (11) lateral wall looks butt, scrape ring (21) coaxial and fixed connection on first filter screen (22), first filter screen (22) are along vertical direction sliding connection on inner chamber (11), set up drain (14) of intercommunication inner chamber (11) and external world on rose box (1) diapire, drive assembly (23) are used for driving the slip of first filter screen (22).

2. A polyurethane resin filter as set forth in claim 1, wherein: the driving assembly (23) comprises a first motor (231), a driving gear (232), a driven gear (233) and a threaded rod (234), one end of the threaded rod (234) is fixedly connected to the first filter screen (22), the other end of the threaded rod (234) is penetrated with a filter box (1) and is in threaded connection with the driven gear (233), the first motor (231) is fixedly connected to the filter box (1), and the driving gear (232) is coaxial and is fixedly connected to a first output shaft, and the driving gear (232) is in meshed connection with the driven gear (233).

3. A polyurethane resin filter as set forth in claim 1, wherein: the distance from one side of the scraping ring (21) close to the first filter screen (22) to one side far away from the first filter screen (22) to the bottom wall of the inner cavity (11) is gradually reduced.

4. A polyurethane resin filter as set forth in claim 3, wherein: the first filter screen (22) is provided with an impeller (221), the impeller (221) is rotationally connected to the first filter screen (22) along the axial direction of the first filter screen (22), and the impeller (221) is abutted to the first filter screen (22).

5. A polyurethane resin filter as set forth in claim 1, wherein: still include pushing down mechanism (3), pushing down mechanism (3) are used for the discharge of polyurethane resin, pushing down mechanism (3) are including holding down plate (31) and driving piece (32), the circumference lateral wall of holding down plate (31) and the circumference lateral wall looks butt of inner chamber (11), holding down plate (31) are along vertical direction sliding connection on inner chamber (11), driving piece (32) are used for driving the slip of holding down plate (31).

6. A polyurethane resin filter as set forth in claim 5, wherein: the driving piece (32) comprises a telescopic air cylinder (321), the telescopic air cylinder (321) is fixedly connected to the filter box (1), and one end of a piston rod of the telescopic air cylinder (321) penetrates through the filter box (1) and is fixedly connected to the lower pressing plate (31).

7. A polyurethane resin filter as set forth in claim 1, wherein: the drain (14) department is equipped with blow off pipe (141), be equipped with collecting pipe (142) on blow off pipe (141), be equipped with second filter screen (143) on collecting pipe (142), second filter screen (143) and the lateral wall looks butt of blow off pipe (141).