Reaction kettle for producing PUR glue
By introducing a lifting assembly and scraper design into the reactor used for PUR adhesive production, the problem of PUR adhesive being difficult to remove from the agitator was solved, enabling continuous production without the need for shutdown for cleaning.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN YOUWEI GAOLE TECH CO LTD
- Filing Date
- 2025-06-25
- Publication Date
- 2026-05-15
AI Technical Summary
In the current PUR adhesive production process, the scraper cannot effectively remove the PUR adhesive adhering to the agitator, causing it to solidify and requiring machine shutdown for cleaning, which affects production efficiency.
A reaction vessel for PUR adhesive production was designed. A lifting assembly drives a cross scraper and a circular scraper to remove PUR adhesive from the agitator and the vessel wall, respectively. The lifting and resetting of the scraper are achieved by a hydraulic push rod and a sliding sleeve assembly, and the PUR adhesive is accelerated to slide off by a guide slope.
This effectively prevents the PUR adhesive on the agitator from solidifying, avoids downtime for cleaning, and improves production continuity and efficiency.
Smart Images
Figure CN224236844U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of PUR adhesive reaction vessel technology, and in particular to a reaction vessel for PUR adhesive production. Background Technology
[0002] PUR adhesive, or polyurethane reactive adhesive, is a type of high-performance adhesive with polyurethane prepolymer as its main component. Its most distinctive feature is that it cures through a chemical reaction with moisture in the air, forming a tough polyurethane polymer after curing. Therefore, it exhibits excellent performance in terms of bonding strength, weather resistance, and chemical resistance. The production process of PUR adhesive requires the use of a heated reaction vessel to mix the raw materials.
[0003] After the raw materials of PUR adhesive are added into the heated reactor, the raw materials are stirred and mixed by the stirring mechanism inside the heated reactor. After the mixture is completed, it is discharged through the discharge pipe on the heated reactor. Since PUR adhesive has a high viscosity, a scraper is installed on the stirring mechanism to scrape the PUR adhesive adhering to the inner wall of the heated reactor, thereby avoiding waste of PUR adhesive.
[0004] However, during the use of the heated reactor, although the scraper can scrape off the PUR adhesive adhering to the inner wall of the heated reactor, it cannot scrape off the PUR adhesive adhering to the agitator. This causes the PUR adhesive to easily solidify on the agitator. When too much PUR adhesive adheres to the agitator, the production of PUR adhesive is stopped, and the PUR adhesive adhering to the agitator is cleaned, thus delaying the production of PUR adhesive. Based on the above problems, this application proposes a reactor for PUR adhesive production. Summary of the Invention
[0005] To address the shortcomings of existing technologies, this invention provides a reaction vessel for PUR adhesive production, thereby solving the aforementioned problems.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A reactor for producing PUR adhesive includes a heated reactor body, a leg-type support fixedly installed at the bottom of the heated reactor body, a stirring assembly for facilitating the stirring of PUR adhesive inside the heated reactor body, a lifting assembly installed on the surface of the heated reactor body, a cross scraper and a circular scraper installed inside the heated reactor body via the lifting assembly, the surface of the circular scraper contacting the inner wall of the heated reactor body, and a sealing assembly fixedly installed at the top of the heated reactor body.
[0008] Preferably, the stirring assembly includes a fixed frame fixedly mounted on the top of the heated reaction vessel body, a stirring motor fixedly mounted on the top of the fixed frame, a stirring shaft fixedly mounted on the output end of the stirring motor, a mounting sleeve fixedly mounted on the surface of the stirring shaft, a stirring paddle fixedly mounted on the outer surface of the mounting sleeve, a connecting plate and a limiting plate fixedly mounted on the surface of the stirring shaft, and the cross scraper and the connecting plate being slidably connected.
[0009] Preferably, the lifting assembly includes a support frame that fixes the top of the heating reactor body, a hydraulic push rod that is fixedly installed on the top of the support frame, a sliding sleeve that is fixedly installed at the output end of the hydraulic push rod, a circular slide rail that is slidably installed inside the sliding sleeve, a mounting circular plate that is fixedly installed at the bottom of the circular slide rail, a cross scraper that is fixedly installed inside the mounting circular plate, and a circular scraper that is fixedly installed on the outer surface of the mounting circular plate.
[0010] Preferably, the circular slide rail consists of two semi-circular slide rail assemblies, and both the slide sleeve and the circular slide rail are made of metal.
[0011] Preferably, the sealing assembly is fixedly installed on the sealing sleeve at the top of the heating reactor body, and a sealing ring is fixedly provided inside the sealing sleeve, the sealing ring being in contact with the output end of the hydraulic push rod.
[0012] Preferably, the bottom of the circular scraper is provided with a guide slope, and the interior of the cross scraper is provided with a guide slope.
[0013] Preferably, a feed pipe is fixedly installed on the right side of the heating reactor body, and a sealing cap is threaded on the surface of the feed pipe. A discharge pipe is fixedly installed at the bottom of the heating reactor body, and a control valve is fixedly installed on the discharge pipe.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: The reaction vessel for PUR adhesive production uses a lifting assembly to move the cross scraper and the circular scraper downwards. The cross scraper scrapes the PUR adhesive adhering to the mounting sleeve and the stirring plate, and the circular scraper scrapes the PUR adhesive adhering to the inner wall of the heated reaction vessel. After scraping, the lifting assembly moves the cross scraper and the circular scraper back to their original positions. This avoids the situation where PUR adhesive solidifies on the stirring paddle, and avoids the need to stop the machine to clean the PUR adhesive adhering to the stirring paddle when there is too much PUR adhesive adhering to it. This also avoids the delay in PUR adhesive production caused by machine shutdown for cleaning. Attached Figure Description
[0015] Figure 1 This is an isometric drawing of the structure of this utility model;
[0016] Figure 2 This is a cross-sectional view of the structure of this utility model;
[0017] Figure 3 This is a partial structural diagram of the present invention;
[0018] Figure 4 This is a schematic diagram of another partial structure of the present invention;
[0019] Figure 5 This is a schematic diagram of the sealing component structure of this utility model.
[0020] In the diagram: 1. Heating reactor body; 2. Leg-type support; 3. Fixing frame; 4. Stirring motor; 5. Stirring shaft; 6. Mounting sleeve; 7. Stirring paddle; 8. Connecting plate; 9. Limiting plate; 10. Support frame; 11. Hydraulic push rod; 12. Sliding sleeve; 13. Circular slide rail; 14. Mounting circular plate; 15. Cross scraper; 16. Circular scraper; 17. Sealing sleeve; 18. Sealing ring; 19. Feed pipe; 20. Sealing cover; 21. Discharge pipe; 22. Control valve. 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] Example: Refer to Figure 1-5A reactor for producing PUR adhesive includes a heated reactor body 1. A leg-type support 2 is fixedly installed at the bottom of the heated reactor body 1. A stirring assembly for facilitating the stirring of the PUR adhesive is installed inside the heated reactor body 1. A lifting assembly is installed on the surface of the heated reactor body 1. A cross scraper 15 and a circular scraper 16 are installed inside the heated reactor body 1 via the lifting assembly. A guide slope is provided at the bottom of the circular scraper 16, and a guide slope is provided inside the cross scraper 15. Through the guide slope, the PUR adhesive on the circular scraper 16 and the cross scraper 15 slides down quickly, facilitating the collection of the scraped PUR adhesive. The surface of the circular scraper 16 contacts the inner wall of the heated reactor body 1. A sealing assembly is fixedly installed at the top of the heated reactor body 1. The lifting assembly includes a support frame 10 fixed to the top of the heated reactor body 1, and a hydraulic push rod 11 is fixedly installed at the top of the support frame 10. A sliding sleeve 12 is fixedly installed at the output end of the hydraulic push rod 11. A circular slide rail 13 is slidably installed inside the sliding sleeve 12. The circular slide rail 13 consists of two semi-circular slide rail assemblies. Both the sliding sleeve 12 and the circular slide rail 13 are made of metal. A mounting plate 14 is fixedly installed at the bottom of the circular slide rail 13. A cross scraper 15 is fixedly installed inside the mounting plate 14, and a circular scraper 16 is fixedly installed on the outer surface of the mounting plate 14. The hydraulic push rod 11 drives the circular slide rail 13 to move downward through the sliding sleeve 12, causing the mounting plate 14 to drive the cross scraper 15 and the circular scraper 16 to move downward. The cross scraper 15 scrapes off the PUR adhesive adhering to the surface of the mounting sleeve 6 and the stirring paddle 7, and the circular scraper 16 scrapes off the PUR adhesive adhering to the inner wall of the heated reactor body 1, thereby preventing the PUR adhesive from adhering to the stirring paddle 7 and the inner wall of the heated reactor body 1, and avoiding the need to stop the machine for cleaning due to the solidification of the PUR adhesive.
[0023] Specifically, the stirring assembly includes a fixed frame 3 fixedly installed on the top of the heated reactor body 1. A stirring motor 4 is fixedly installed on the top of the fixed frame 3. A stirring shaft 5 is fixedly installed at the output end of the stirring motor 4. A mounting sleeve 6 is fixedly installed on the surface of the stirring shaft 5. A stirring paddle 7 is fixedly installed on the outer surface of the mounting sleeve 6. A connecting plate 8 and a limiting plate 9 are fixedly installed on the surface of the stirring shaft 5. The cross scraper 15 is slidably connected to the connecting plate 8. The stirring motor 4 drives the output end to rotate the stirring shaft 5, which in turn drives the mounting sleeve 6 to rotate, thus causing the mounting sleeve 6 to drive the stirring paddle 7. The mixing paddle 7 mixes and stirs the raw materials of PUR adhesive. At the same time, the mounting sleeve 6 drives the connecting plate 8 and the limiting plate 9 to rotate, which in turn drives the cross scraper 15 to rotate. The cross scraper 15 drives the mounting circular plate 14 to rotate, and the mounting circular plate 14 drives the circular scraper 16 to rotate. The mounting circular plate 14 drives the circular slide rail 13 inside the sliding sleeve 12. The connecting plate 8 and the limiting plate 9 prevent the cross scraper 15 from shifting during movement, thus ensuring that the cross scraper 15, the mounting sleeve 6, and the mixing paddle 7 always remain vertically aligned.
[0024] Specifically, the sealing assembly is fixedly installed on the sealing sleeve 17 at the top of the heating reactor body 1. A sealing ring 18 is fixedly installed inside the sealing sleeve 17. The sealing ring 18 is in contact with the output end of the hydraulic push rod 11. When the hydraulic push rod 11 extends or retracts, the hydraulic push rod 11 and the sealing ring 18 move relative to each other. Since the sealing ring 18 is in contact with the output end of the hydraulic push rod 11, and the output end of the hydraulic push rod 11 exerts a certain amount of pressure on the sealing ring 18, the sealing ring 18 seals the output end of the hydraulic push rod 11. This prevents the heating reactor body 1 from having poor sealing when the output end of the hydraulic push rod 11 slides inside the heating reactor body 1.
[0025] Specifically, a feed pipe 19 is fixedly installed on the right side of the heating reactor body 1, and a sealing cap 20 is threaded on the surface of the feed pipe 19. A discharge pipe 21 is fixedly installed at the bottom of the heating reactor body 1, and a control valve 22 is fixedly installed on the discharge pipe 21. The feed pipe 19 facilitates the addition of PUR adhesive into the heating reactor body 1, the sealing cap 20 facilitates the sealing of the feed pipe 19, and the discharge pipe 21 facilitates the discharge of the mixed PUR adhesive from the heating reactor body 1.
[0026] In use: After the PUR adhesive is mixed and discharged, the hydraulic push rod 11 drives the output end to move the sliding sleeve 12 downward, so that the sliding sleeve 12 drives the circular slide rail 13 downward, and the circular slide rail 13 drives the mounting plate 14 downward, so that the mounting plate 14 drives the cross scraper 15 and the circular scraper 16 downward. The cross scraper 15 scrapes off the PUR adhesive adhering to the surface of the mounting sleeve 6 and the stirring paddle 7, and the circular scraper 16 scrapes off the PUR adhesive adhering to the inner wall of the heated reactor body 1, and discharges the heated reactor body 1 through the discharge pipe 21.
[0027] 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 reaction vessel for producing PUR adhesive, comprising a heated reaction vessel body (1), characterized in that, The bottom of the heating reactor body (1) is fixedly provided with a leg support (2). The interior of the heating reactor body (1) is provided with a stirring assembly to facilitate stirring of PUR glue. The surface of the heating reactor body (1) is provided with a lifting assembly. The interior of the heating reactor body (1) is provided with a cross scraper (15) and a circular scraper (16) through the lifting assembly. The surface of the circular scraper (16) is in contact with the inner wall of the heating reactor body (1). The top of the heating reactor body (1) is fixedly provided with a sealing assembly.
2. The reaction vessel for PUR adhesive production according to claim 1, characterized in that, The stirring assembly includes a fixed frame (3) fixedly installed on the top of the heating reactor body (1), a stirring motor (4) fixedly installed on the top of the fixed frame (3), a stirring shaft (5) fixedly installed at the output end of the stirring motor (4), an installation sleeve (6) fixedly installed on the surface of the stirring shaft (5), a stirring paddle (7) fixedly installed on the outer surface of the installation sleeve (6), a connecting plate (8) and a limiting plate (9) fixedly installed on the surface of the stirring shaft (5), and the cross scraper (15) and the connecting plate (8) are slidably connected.
3. The reaction vessel for PUR adhesive production according to claim 1, characterized in that, The lifting assembly includes a support frame (10) fixed to the top of the heating reactor body (1). A hydraulic push rod (11) is fixedly installed on the top of the support frame (10). A sliding sleeve (12) is fixedly installed at the output end of the hydraulic push rod (11). A circular slide rail (13) is slidably installed inside the sliding sleeve (12). A mounting circular plate (14) is fixedly installed at the bottom of the circular slide rail (13). A cross scraper (15) is fixedly installed inside the mounting circular plate (14). A circular scraper (16) is fixedly installed on the outer surface of the mounting circular plate (14).
4. The reaction vessel for PUR adhesive production according to claim 3, characterized in that, The circular slide rail (13) is composed of two semi-circular slide rail assemblies, and both the slide sleeve (12) and the circular slide rail (13) are made of metal.
5. The reaction vessel for PUR adhesive production according to claim 1, characterized in that, The sealing assembly is fixedly installed on the sealing sleeve (17) on the top of the heating reactor body (1). A sealing ring (18) is fixedly installed inside the sealing sleeve (17). The sealing ring (18) is in contact with the output end of the hydraulic push rod (11).
6. The reaction vessel for PUR adhesive production according to claim 1, characterized in that, The circular scraper (16) has a guide slope at its bottom, and the cross scraper (15) has a guide slope inside.
7. The reaction vessel for PUR adhesive production according to claim 1, characterized in that, A feed pipe (19) is fixedly installed on the right side of the heating reactor body (1). A sealing cap (20) is threaded on the surface of the feed pipe (19). A discharge pipe (21) is fixedly installed at the bottom of the heating reactor body (1). A control valve (22) is fixedly installed on the discharge pipe (21).