Polyurethane resin feeding device for polyurethane production

Abstract

This utility model discloses a polyurethane resin feeding device for polyurethane production, including a mounting frame, a feeding hopper fixedly installed inside the mounting frame, a filter element fixedly installed at the top of the feeding hopper, a negative pressure fan fixedly installed at the top of the feeding hopper, a fixing frame fixedly installed inside the mounting frame, a sleeve rotatably connected inside the fixing frame, a baffle plate fixedly installed in the inner wall of the sleeve, and multiple first openings provided on the baffle plate. A second opening is provided at the bottom of the feeding hopper corresponding to the multiple first openings. This polyurethane resin feeding device for polyurethane production can replace manual feeding, thus greatly reducing the workload of workers. It can also control the discharge speed and perform intermittent discharge according to usage needs, avoiding blockage in the equipment's feed hopper caused by adding too much raw material at once. Furthermore, during use, an extension pipe can be extended into the feed hopper to prevent material from splashing out of the feed hopper during discharge, thus avoiding resource waste.

Description

Technical Field

[0001] This utility model relates to the field of polyurethane resin production technology, specifically to a polyurethane resin feeding device for polyurethane production. Background Technology

[0002] Polyurethane (PU), short for polyurethane, is a polymer material with excellent mechanical properties formed by polycondensation reaction of polyols and polyisocyanates. It is highly malleable and widely used in textiles, construction, aviation, shipbuilding, transportation, medicine, electronics and other fields.

[0003] In the existing polyurethane resin production process, workers need to use containers to hold polyurethane resin granules and then pour the granules into the feed hopper of the production equipment. This feeding method requires workers to frequently bend over and carry the granules, which increases their workload. In addition, it is impossible to control the speed at which the polyurethane resin granules enter the feed hopper during manual feeding, which can easily lead to too many polyurethane resin granules being poured at once, causing blockages in the feed hopper.

[0004] Therefore, we propose a polyurethane resin feeding device for polyurethane production. Utility Model Content

[0005] The purpose of this invention is to provide a polyurethane resin feeding device for polyurethane production, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a polyurethane resin feeding device for polyurethane production, comprising a mounting frame, a feeding hopper fixedly installed inside the mounting frame, a filter element fixedly installed at the top of the feeding hopper, a negative pressure fan fixedly installed at the top of the feeding hopper, a fixing frame fixedly installed inside the mounting frame, a sleeve rotatably connected inside the fixing frame, a baffle plate fixedly installed in the inner wall of the sleeve, a plurality of first openings provided on the baffle plate, a second opening provided at the bottom of the feeding hopper corresponding to the plurality of first openings, the top end of the sleeve extending out of the fixing frame and fixedly fitted with a toothed ring, a gear meshing with the right side of the toothed ring, a threaded rod rotatably connected to the left side of the toothed ring inside the mounting frame, a T-shaped frame threadedly fitted on the threaded rod, an extension tube fixedly installed on the right side of the T-shaped frame, the extension tube rotatably fitted on the outside of the sleeve, and a feeding pipe fixedly installed on the left side of the feeding hopper.

[0007] Optionally, a limiting ring is fixedly sleeved on the outer side of the sleeve. The limiting ring is rotatably connected inside the fixing frame, and the sleeve can be supported and limited by the limiting ring.

[0008] Optionally, the sleeve is fitted onto the outside of the bottom end of the feeding hopper, a design that facilitates the use of this equipment.

[0009] Optionally, a first motor is fixedly installed at the bottom end of the fixed frame corresponding to the gear, and the output end of the first motor is fixedly installed on the gear. The first motor drives the gear to rotate, which is beneficial to the use of this equipment.

[0010] Optionally, a second motor is fixedly installed at the top of the fixing frame on the left side of the toothed ring. The output end of the second motor is fixedly installed on the threaded rod. The rotation of the threaded rod by the second motor is beneficial to the use of this equipment.

[0011] Optionally, sliders are fixedly installed at both the front and rear ends of the left side of the T-shaped frame. Slide grooves are provided at the two corresponding sliders in the mounting frame. The sliders are slidably connected in the slide grooves, and the T-shaped frame can be limited by the sliders.

[0012] Optionally, a PLC controller is fixedly installed at the bottom right side of the mounting frame, which facilitates the control of the equipment.

[0013] Compared with the prior art, the beneficial effects of this utility model are: Through the coordinated operation of the feeding hopper, filter element, negative pressure fan, feeding pipe, sleeve, gear ring, gear, T-frame, first motor, extension pipe, baffle plate, first opening, second opening, second motor, and threaded rod, it can replace manual feeding, thus greatly reducing the workload of workers. At the same time, it can control the discharge speed and perform intermittent discharge according to the needs of use, avoiding blockage in the equipment's feed hopper caused by adding too much raw material at once. Furthermore, the extension pipe can be extended into the feed hopper during use to prevent material from splashing out of the feed hopper during discharge, thus avoiding waste of resources. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a polyurethane resin feeding device for polyurethane production according to this utility model. Figure 2 This is a cross-sectional view of a polyurethane resin feeding device for polyurethane production according to this utility model. Figure 3 This is a cross-sectional view of the baffle plate in a polyurethane resin feeding device for polyurethane production according to this utility model. Figure 4 This is a cross-sectional view of the T-shaped frame in a polyurethane resin feeding device for polyurethane production according to this utility model.

[0015] In the diagram: 1. Mounting frame; 2. Feeding hopper; 3. Fixing frame; 4. PLC controller; 5. Filter element; 6. Negative pressure fan; 7. Feeding pipe; 8. Limiting ring; 9. Sleeve; 10. Gear ring; 11. Gear; 12. T-shaped frame; 13. First motor; 14. Extension pipe; 15. Baffle plate; 16. First opening; 17. Second opening; 18. Second motor; 19. Slider; 20. Slide groove; 21. Threaded rod. Detailed Implementation

[0016] 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.

[0017] Please see Figures 1 to 4 This utility model provides a polyurethane resin feeding device for polyurethane production, including a mounting frame 1, a feeding bin 2 fixedly installed inside the mounting frame 1, a filter element 5 fixedly installed at the top of the feeding bin 2, a negative pressure fan 6 fixedly installed at the top of the feeding bin 2, a fixing frame 3 fixedly installed inside the mounting frame 1, a sleeve 9 rotatably connected inside the fixing frame 3, a baffle plate 15 fixedly installed in the inner wall of the sleeve 9, a plurality of first openings 16 provided on the baffle plate 15, a second opening 17 provided at the bottom of the feeding bin 2 corresponding to the plurality of first openings 16, the top end of the sleeve 9 extending out of the fixing frame 3 and fixedly fitted with a toothed ring 10, a gear 11 meshing with the right side of the toothed ring 10, a threaded rod 21 rotatably connected to the left side of the toothed ring 10 inside the mounting frame 1, a T-shaped frame 12 threadedly fitted on the threaded rod 21, an extension tube 14 fixedly installed on the right side of the T-shaped frame 12, the extension tube 14 rotatably fitted on the outside of the sleeve 9, and a feeding pipe 7 fixedly installed on the left side of the feeding bin 2.

[0018] A limiting ring 8 is fixedly fitted on the outer side of the sleeve 9. The limiting ring 8 is rotatably connected inside the fixing frame 3. The limiting ring 8 can support and limit the sleeve 9. The sleeve 9 is fitted on the outer side of the bottom end of the feeding hopper 2. This design is beneficial to the use of this equipment. A first motor 13 is fixedly installed at the bottom end of the fixing frame 3 corresponding to the gear 11. The output end of the first motor 13 is fixedly installed on the gear 11. The first motor 13 drives the gear 11 to rotate, which is beneficial to the use of this equipment. A second motor 18 is fixedly installed at the top of the fixing frame 3 on the left side of the gear ring 10. The output end of the second motor 18 is fixedly installed on the threaded rod 21. The rotation of the threaded rod 21 by the second motor 18 is beneficial to the use of this equipment. The front and rear ends of the left side of the T-shaped frame 12 are fixedly installed with sliders 19. The mounting frame 1 has a groove 20 corresponding to each of the two sliders 19. The sliders 19 are slidably connected in the groove 20. The sliders 19 can limit the T-shaped frame 12. The PLC controller 4 is fixedly installed at the bottom right side of the fixed frame 3 in the mounting frame 1. The PLC controller 4 facilitates the control of this equipment.

[0019] Working principle: In use, the mounting bracket 1 is fixed to the outside of the feed hopper of the production equipment using external bolts and the pre-drilled mounting holes on the mounting bracket 1. Then, the switch of the second motor 18 is turned on. The second motor 18 drives the threaded rod 21 to rotate, causing the T-shaped bracket 12 to drive the extension tube 14 to descend and extend into the feed hopper, preventing material from splashing out of the feed hopper during the feeding process. Then, the feeding pipe 7 is inserted into the raw material storage container. The switch of the negative pressure fan 6 is turned on, and the negative pressure fan 6 works to expel the air in the feeding bin 2. At this time, a negative pressure is generated in the feeding pipe 7, which can suck the polyurethane resin particles into the feeding bin 2. Then, the negative pressure fan 6 stops working. As needed, the switch of the first motor 13 can be turned on. The first motor 13 drives the gear 11, gear ring 10 and sleeve 9 to rotate, so that multiple first openings 16 and second openings 17 gradually overlap. The degree of overlap can control the discharge speed of the feeding hopper 2. As needed, the first motor 13 can also drive the sleeve 9 and the baffle 15 to rotate continuously. Whenever the first opening 16 and the second opening 17 overlap, some raw materials can flow out, realizing intermittent feeding. 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 polyurethane resin feeding device for polyurethane production is easy to use. The above components can replace manual feeding, thereby greatly reducing the workload of the staff. At the same time, the discharge speed can be controlled and intermittent discharge can be performed according to the needs of use, avoiding the blockage in the equipment feed hopper caused by adding too much raw material at one time. In addition, the extension pipe 14 can be extended into the feed hopper during use to avoid the material splashing out of the feed hopper during the discharge process, which would cause waste of resources.

[0020] 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 polyurethane resin feeding device for polyurethane production, characterized in that, The system includes a mounting frame (1), a feeding hopper (2) fixedly installed inside the mounting frame (1), a filter element (5) fixedly installed at the top of the feeding hopper (2), a negative pressure fan (6) fixedly installed at the top of the feeding hopper (2), a fixing frame (3) fixedly installed inside the mounting frame (1), a sleeve (9) rotatably connected inside the fixing frame (3), a baffle plate (15) fixedly installed in the inner wall of the sleeve (9), a plurality of first openings (16) provided on the baffle plate (15), and a corresponding first opening (16) provided at the bottom of the feeding hopper (2). The second opening (17) has the top end of the sleeve (9) extending out of the fixing frame (3) and is fixedly fitted with a toothed ring (10). A gear (11) is meshed with the right side of the toothed ring (10). A threaded rod (21) is rotatably connected to the left side of the toothed ring (10) inside the mounting frame (1). A T-shaped frame (12) is threadedly fitted on the threaded rod (21). An extension tube (14) is fixedly installed on the right side of the T-shaped frame (12). The extension tube (14) is rotatably fitted on the outside of the sleeve (9). A feeding pipe (7) is fixedly installed on the left side of the feeding bin (2).

2. The polyurethane resin feeding device for polyurethane production according to claim 1, characterized in that, A limiting ring (8) is fixedly sleeved on the outside of the sleeve (9), and the limiting ring (8) is rotatably connected inside the fixing frame (3).

3. The polyurethane resin feeding device for polyurethane production according to claim 1, characterized in that, The sleeve (9) is fitted on the outside of the bottom end of the feeding hopper (2).

4. The polyurethane resin feeding device for polyurethane production according to claim 1, characterized in that, The first motor (13) is fixedly installed at the bottom of the fixed frame (3) corresponding to the gear (11), and the output end of the first motor (13) is fixedly installed on the gear (11).

5. A polyurethane resin feeding device for polyurethane production according to claim 1, characterized in that, The top of the fixing frame (3) is fixedly installed on the left side of the toothed ring (10) with a second motor (18) and the output end of the second motor (18) is fixedly installed on the threaded rod (21).

6. A polyurethane resin feeding device for polyurethane production according to claim 1, characterized in that, The left front and rear ends of the T-shaped frame (12) are fixedly installed with sliders (19), and the mounting frame (1) is provided with grooves (20) corresponding to the two sliders (19), and the sliders (19) are slidably connected in the grooves (20).

7. A polyurethane resin feeding device for polyurethane production according to claim 1, characterized in that, A PLC controller (4) is fixedly installed inside the mounting bracket (1) at the bottom right side of the fixed bracket (3).

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