Filtering device for polyurethane resin production

Abstract

The utility model discloses a filtering device for polyurethane resin production, which comprises a trapezoidal frame, a filter cartridge is fixedly mounted on the trapezoidal frame, a U-shaped frame is fixedly sleeved on the trapezoidal frame and positioned on the outer side of the filter cartridge, a moving frame is arranged in the U-shaped frame, a transmission gear is rotatably connected in the moving frame, a transmission rod is fixedly mounted at the left end of the transmission gear, and a transmission shaft is fixedly mounted at the right end of the transmission gear. The bottom end of the transmission gear is in meshed connection with a driving gear, an extrusion plate is slidably connected to the right side in the filter cartridge, a plurality of scraping rods are fixedly mounted on the left side of the extrusion plate, the left end of the transmission rod extends into the filter cartridge and is fixedly mounted on the extrusion plate, and sliding grooves are formed in the two output ends of the U-shaped frame. According to the filtering device for polyurethane resin production, raw materials can be extruded during filtering, the speed that the raw materials pass through the filtering net plate is increased, so that the working efficiency of filtering of the filtering device is further improved, meanwhile, impurities attached to the filtering net plate can be rapidly cleaned and discharged after filtering is finished each time, and the situation that the subsequent filtering effect is affected due to impurity accumulation is avoided.

Description

Technical Field

[0001] This utility model relates to the field of filtration device technology, specifically a filtration device produced from polyurethane resin. Background Technology

[0002] Polyurethane resin is a type of high molecular weight polymer with urethane groups (—NHCOO—) in its main chain. It is synthesized by polycondensation reaction of isocyanate and polyol. It has adjustable physicochemical properties and is widely used in elastomers, foams, coatings, adhesives and other fields. In order to avoid impurities in the raw materials from affecting the production quality, filtration equipment is required to filter the polyurethane resin raw materials during the production process.

[0003] A search revealed that patent application CN202421272421.5 discloses a filtration device for polyurethane resin production, comprising a cylindrical body, a main body fixed on the cylindrical body, an installation mechanism engaged on the cylindrical body, a filter cartridge engaged on the installation mechanism, an installation block fixed on the installation mechanism, and a cleaning mechanism on the installation block. The cleaning mechanism includes a rotating shaft and a motor, with the motor fixedly mounted on the installation block. The output end of the motor is fixedly connected to the rotating shaft via a coupling, and a connecting rod is fixedly mounted on the rotating shaft. A fixing plate is fixedly connected to the end of the connecting rod, and a cleaning brush is fixedly mounted on the fixing plate. The cleaning brush is rotatably connected to the filter cartridge, and a connecting mechanism is fixedly mounted on the rotating shaft. When the motor is turned on, the rotating shaft drives the fixing plate mounted on the connecting rod to rotate, thereby causing the fixing plate to drive the cleaning brush to rotate, which can clean the impurities attached to the filter cartridge, thus improving the filtration effect of the filter cartridge.

[0004] However, this patent has its shortcomings. In actual use, this type of filter device can only rely on the natural flow of polyurethane resin for filtration. Since the polyurethane resin raw material has a certain viscosity, its natural flow and falling speed is slow. Each filtration process requires a lot of waiting time, resulting in low filtration efficiency.

[0005] Therefore, we propose a filtration device for the production of polyurethane resin. Utility Model Content

[0006] The purpose of this invention is to provide a filtration device for polyurethane resin production to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a filtration device for producing polyurethane resin, comprising a trapezoidal frame, on which a filter cylinder is fixedly mounted; a U-shaped frame is fixedly sleeved on the outside of the filter cylinder on the trapezoidal frame; a movable frame is disposed within the U-shaped frame; a transmission gear is rotatably connected within the movable frame; a transmission rod is fixedly mounted on the left end of the transmission gear; a drive gear is meshed with the bottom end of the transmission gear; an extrusion plate is slidably connected to the right side of the filter cylinder; and multiple scrapers are fixedly mounted on the left side of the extrusion plate. The left end of the transmission rod extends into the filter cylinder and is fixedly installed on the extrusion plate. Both output ends of the U-shaped frame are provided with sliding grooves, and threaded rods are rotatably connected in both sliding grooves. The front and rear ends of the movable frame extend into the sliding grooves and are threaded onto the outside of the threaded rods. The right sides of both threaded rods extend out of the U-shaped frame and are fixedly installed with drive gears. The two drive gears are connected by a toothed belt. A cover plate is inserted into the left side of the filter cylinder. A support column is fixedly installed on the right side of the cover plate. A filter screen plate is fixedly installed on the right side of the support column.

[0008] Optionally, a bracket is fixedly fitted on the right side of the U-shaped frame outside one of the drive gears. A second motor is fixedly installed on the bracket, and the output end of the second motor is fixedly installed on one of the drive gears. The second motor drives the drive gear to rotate, which is beneficial to the use of this equipment.

[0009] Optionally, a first motor is fixedly installed on the right side of the mobile frame, and the output end of the first motor is fixedly installed on the drive gear. The first motor drives the drive gear to rotate, which is beneficial to the use of this equipment.

[0010] Optionally, a waste discharge seat is fixedly installed at the bottom of the filter cylinder on the right side of the filter screen plate, and an electric gate valve is fixedly installed on the waste discharge seat to facilitate the discharge of filtered impurities.

[0011] Optionally, the front and rear ends of the filter cartridge are fixedly installed with brackets, and the right side of the cover plate is fixedly installed with a bracket at each of the two brackets. The bracket is inserted into the bracket, and the top of each of the two brackets is threaded with a fixing bolt. The bottom of each of the two fixing bolts extends out of the bracket, and the bracket can be limited and fixed by the fixing bolt.

[0012] Optionally, a discharge pipe is fixedly installed on the left side of the cover plate, and a feed pipe is fixedly installed on the top of the filter cylinder, so that polyurethane resin raw materials can easily enter and exit the filter cylinder through the feed pipe and the discharge pipe.

[0013] Optionally, a PLC controller is fixedly installed on the right side of the U-shaped frame on the trapezoidal frame, so that the equipment can be easily controlled to work.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] Through the coordinated operation of the waste discharge seat, extrusion plate, scraper, transmission rod, moving frame, drive gear, transmission gear, first motor, threaded rod, drive gear, toothed belt, and second motor, the raw material can be extruded during filtration, accelerating the speed at which the raw material passes through the filter screen, thereby further improving the filtration efficiency of this equipment. At the same time, it can quickly clean and discharge the impurities attached to the filter screen after each filtration, preventing the accumulation of impurities from affecting the subsequent filtration effect. Attached Figure Description

[0016] Fig. 1 This is a schematic diagram of the overall structure of a filtration device for producing polyurethane resin according to this utility model.

[0017] Fig. 2 This is a cross-sectional view of a filtration device for producing polyurethane resin according to this utility model;

[0018] Fig. 3 This is a cross-sectional view of the U-shaped frame in a filter device for producing polyurethane resin according to this utility model.

[0019] Fig. 4 This is a cross-sectional view of the card holder in a filter device for producing polyurethane resin according to this utility model.

[0020] In the diagram: 1. Trapezoidal frame; 2. Filter cylinder; 3. U-shaped frame; 4. PLC controller; 5. Cover plate; 6. Support column; 7. Filter screen plate; 8. Discharge pipe; 9. Feed pipe; 10. Waste discharge seat; 11. Extrusion plate; 12. Scraper; 13. Transmission rod; 14. Moving frame; 15. Drive gear; 16. Transmission gear; 17. First motor; 18. Card holder; 19. Card bracket; 20. Slide groove; 21. Threaded rod; 22. Drive gear; 23. Toothed belt; 24. Bracket; 25. Fixing bolt; 26. Second motor. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figs. 1 to 4This utility model provides a filtration device for polyurethane resin production, including a trapezoidal frame 1, a filter cylinder 2 fixedly mounted on the trapezoidal frame 1, a U-shaped frame 3 fixedly sleeved on the outer side of the filter cylinder 2 on the trapezoidal frame 1, a movable frame 14 disposed inside the U-shaped frame 3, a transmission gear 16 rotatably connected inside the movable frame 14, a transmission rod 13 fixedly mounted on the left end of the transmission gear 16, a drive gear 15 meshing with the bottom end of the transmission gear 16, an extrusion plate 11 slidably connected to the right side of the filter cylinder 2, a plurality of scraper rods 12 fixedly mounted on the left side of the extrusion plate 11, and the left end of the transmission rod 13... The U-shaped frame 3 extends into the filter cylinder 2 and is fixedly installed on the extrusion plate 11. Each of the two output ends of the U-shaped frame 3 is provided with a sliding groove 20. Each of the two sliding grooves 20 is rotatably connected with a threaded rod 21. The front and rear ends of the movable frame 14 extend into the sliding grooves 20 and are threaded onto the outside of the threaded rod 21. The right sides of the two threaded rods 21 extend out of the U-shaped frame 3 and are fixedly installed with drive gears 22. The two drive gears 22 are connected by a toothed belt 23. A cover plate 5 is inserted into the left side of the filter cylinder 2. A support column 6 is fixedly installed on the right side of the cover plate 5. A filter screen plate 7 is fixedly installed on the right side of the support column 6.

[0023] A bracket 24 is fixedly fitted on the right side of the U-shaped frame 3, outside one of the drive gears 22. A second motor 26 is fixedly mounted on the bracket 24, and the output end of the second motor 26 is fixedly mounted on one of the drive gears 22. The second motor 26 drives the drive gear 22 to rotate, which is beneficial to the use of this equipment. A first motor 17 is fixedly mounted on the right side of the movable frame 14, and the output end of the first motor 17 is fixedly mounted on the drive gear 15. The first motor 17 drives the drive gear 15 to rotate, which is beneficial to the use of this equipment. A waste discharge seat 10 is fixedly mounted at the bottom of the filter cylinder 2, on the right side of the filter screen plate 7. An electric gate valve is fixedly mounted on the waste discharge seat 10, which facilitates the discharge of filtered material. To remove impurities, the front and rear ends of the filter cylinder 2 are fixedly installed with brackets 19. On the right side of the cover plate 5, corresponding to the two brackets 19, a bracket seat 18 is fixedly installed. The bracket seat 18 is inserted into the bracket 19. The top of the two brackets 19 is threaded with a fixing bolt 25. The bottom end of the two fixing bolts 25 extends out of the bracket 19. The fixing bolts 25 can limit and fix the bracket seat 18. The left side of the cover plate 5 is fixedly installed with a discharge pipe 8. The top of the filter cylinder 2 is fixedly installed with a feed pipe 9. The feed pipe 9 and the discharge pipe 8 facilitate the entry and exit of polyurethane resin raw materials into and out of the filter cylinder 2. The trapezoidal frame 1 is fixedly installed on the right side of the U-shaped frame 3. The PLC controller 4 is used to control the operation of this equipment.

[0024] Working principle: During use, place the receiving container on the left side of the trapezoidal frame 1 corresponding to the discharge pipe 8. Then, add the polyurethane resin raw material into the filter cylinder 2 through the feed pipe 9. Turn on the filter switch. At this time, the second motor 26 drives the drive gear 22 and the two threaded rods 21 to rotate synchronously, causing the moving frame 14 to slide to the left within the U-shaped frame 3. This causes the transmission rod 13 to drive the extrusion plate 11 to slide to the left within the filter cylinder 2, extruding the polyurethane resin raw material. The polyurethane resin raw material can then quickly pass through the filter screen 7 and be discharged from the discharge pipe 8, completing the filtration process. After filtration, turn on the cleaning switch. At this time, the electric gate valve in the waste discharge seat 10 opens. Simultaneously, the first motor 17 drives the transmission rod 13, the extrusion plate 11, and multiple scrapers 12 to rotate. The multiple scrapers 12 remove the impurities adhering to the filter screen 7, and then the impurities are discharged from the waste discharge seat 10. After cleaning, when it is necessary to clean and replace the filter screen 7 or rinse the inner wall of the filter cylinder 2, the two fixing bolts 25 can be removed, and then the cover plate 5 can be pulled to the left, so that the two brackets 18 extend out of the bracket 19, and the filter screen 7 extends out of the filter cylinder 2, so that it can be replaced and cleaned. A handle can be added to the left side of the cover plate 5 as needed. The circuit connection methods, mechanical structures and connection relationships not mentioned in this specification are all conventional technical means in this field, so they will not be described in detail. This kind of polyurethane resin filter device is easy to use. Through the above components, the raw material can be squeezed during filtration, which speeds up the speed at which the raw material passes through the filter screen 7, thereby further improving the filtration efficiency of this equipment. At the same time, it can quickly clean and discharge the impurities attached to the filter screen 7 after each filtration, avoiding the accumulation of impurities that affect the subsequent filtration effect.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A filtration device for producing polyurethane resin, characterized in that, The system includes a trapezoidal frame (1), on which a filter cylinder (2) is fixedly mounted. A U-shaped frame (3) is fixedly fitted on the outside of the filter cylinder (2) on the trapezoidal frame (1). A movable frame (14) is provided inside the U-shaped frame (3). A transmission gear (16) is rotatably connected inside the movable frame (14). A transmission rod (13) is fixedly mounted on the left end of the transmission gear (16). A drive gear (15) is meshed with the bottom end of the transmission gear (16). A pressing plate (11) is slidably connected to the right side of the filter cylinder (2). Multiple scrapers (12) are fixedly mounted on the left side of the pressing plate (11). The left end of the transmission rod (13) extends into the filter cylinder (2) and... The U-shaped frame (3) is fixedly installed on the extrusion plate (11). Each of the two output ends of the U-shaped frame (3) is provided with a sliding groove (20). Each of the two sliding grooves (20) is rotatably connected with a threaded rod (21). The front and rear ends of the moving frame (14) extend into the sliding groove (20) and are threaded onto the outside of the threaded rod (21). The right side of each of the two threaded rods (21) extends out of the U-shaped frame (3) and is fixedly installed with a drive gear (22). The two drive gears (22) are connected by a toothed belt (23). A cover plate (5) is inserted into the left side of the filter cylinder (2). A support column (6) is fixedly installed on the right side of the cover plate (5). A filter screen plate (7) is fixedly installed on the right side of the support column (6).

2. The filtration device for producing polyurethane resin according to claim 1, characterized in that, A bracket (24) is fixedly fitted on the right side of the U-shaped frame (3) outside one of the drive gears (22). A second motor (26) is fixedly installed on the bracket (24), and the output end of the second motor (26) is fixedly installed on one of the drive gears (22).

3. A filtration device for producing polyurethane resin according to claim 1, characterized in that, The right side of the mobile frame (14) is fixedly installed with a first motor (17), and the output end of the first motor (17) is fixedly installed on the drive gear (15).

4. A filtration device for producing polyurethane resin according to claim 1, characterized in that, The bottom end of the filter cylinder (2) is fixedly installed on the right side of the filter screen plate (7) with a waste discharge seat (10) and an electric gate valve is fixedly installed on the waste discharge seat (10).

5. A filtration device for producing polyurethane resin according to claim 1, characterized in that, The filter cartridge (2) is fixedly installed with a bracket (19) at both the front and rear ends. The cover plate (5) is fixedly installed with a bracket seat (18) at the two brackets (19) on the right side. The bracket seat (18) is inserted into the bracket (19). The top of the two brackets (19) is threaded with a fixing bolt (25). The bottom of the two fixing bolts (25) extends out of the bracket (19).

6. A filtration device for producing polyurethane resin according to claim 1, characterized in that, A discharge pipe (8) is fixedly installed on the left side of the cover plate (5), and a feed pipe (9) is fixedly installed on the top of the filter cylinder (2).

7. A filtration device for producing polyurethane resin according to claim 1, characterized in that, A PLC controller (4) is fixedly installed on the right side of the U-shaped frame (3) on the trapezoidal frame (1).

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