Urea mixing device for urea-formaldehyde resin adhesive production
By designing the extrusion plate, tilting plate, and sieve plate structure of the urea mixing device, the problem of insufficient mixing caused by urea agglomeration was solved, and the full mixing of urea with other materials was achieved, thus improving the production quality of urea-formaldehyde resin adhesive.
Patent Information
- Application Number
- CN202422475223.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-14
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-10-14
AI Technical Summary
Existing urea-formaldehyde resin production equipment suffers from insufficient mixing when adding urea that has become damp and clumped, affecting production efficiency.
A urea mixing device was designed, comprising an extrusion plate, a tilting plate, an electric crushing roller, and a screening plate. Through extrusion crushing, tilting, grinding, and screening, the urea is ensured to be fully mixed.
Effectively breaks up clumps of urea and ensures that urea powder enters the mixing tank through sieving, achieving thorough mixing with other materials and improving production quality.
Smart Images
Figure CN223542911U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of urea-formaldehyde resin adhesive production technology, specifically to a urea mixing device for urea-formaldehyde resin adhesive production. Background Technology
[0002] Urea-formaldehyde resin adhesive is a thermosetting resin formed by the condensation reaction of urea and formaldehyde. It is widely used in the production of plywood, particleboard, medium-density fiberboard, and other engineered wood products, as well as in interior decoration. During the production of urea-formaldehyde resin adhesive, urea is added in three stages: the first addition is 40% of the total amount, the second is 50%, and the third is 10%. In current urea-formaldehyde resin adhesive production processes, the amount of urea added each time needs to be quantitatively controlled.
[0003] However, many equipment used for producing urea-formaldehyde resin adhesives now add urea directly into the equipment during mixing. When urea clumps due to moisture, it leads to insufficient mixing with the materials, which in turn affects the production of urea-formaldehyde resin adhesives.
[0004] However, in the above scheme, after the urea is put into the equipment, it is directly crushed. But if the urea clumps due to moisture, it will lead to incomplete crushing. In the end, it will not be able to mix well with other materials in the mixing tank, which will have a certain impact on the production of urea-formaldehyde resin.
[0005] In view of this, the present invention proposes a urea mixing device for the production of urea-formaldehyde resin adhesive. Utility Model Content
[0006] This utility model proposes a urea mixing device for the production of urea-formaldehyde resin adhesive, which solves the problem in many related technologies where urea is added directly into the equipment for mixing. When the urea clumps due to moisture, it leads to insufficient mixing with the materials, which in turn affects the production of urea-formaldehyde resin adhesive.
[0007] The technical solution of this utility model is as follows: A urea mixing device for the production of urea-formaldehyde resin adhesive includes a base, a mixing tank fixedly connected to the top of the base, a support plate fixedly connected to the base on the side of the mixing tank, an operation box fixedly connected to the top of the support plate, a feed inlet fixedly connected to the top of the operation box, a first electric push rod fixedly connected inside the operation box, an extrusion plate fixedly connected to the output end of the first electric push rod, a crushing rod fixedly connected to the inner wall of the operation box on one side of the extrusion plate, a tilting plate rotatably connected inside the operation box, a second electric push rod fixedly connected to the operation box below the tilting plate, a connecting block fixedly connected to the output end of the second electric push rod, a sliding rod fixedly connected to the inner wall of the connecting block, a control plate fixedly connected to the tilting plate slidably connected to the surface of the sliding rod, and a guide plate fixedly connected to the inner wall of the operation box below the tilting plate.
[0008] Preferably, two sets of electric crushing rollers are rotatably connected to the inner wall of the operating box below the guide plate, a third electric push rod is fixedly connected to the surface of the operating box, a push plate penetrating into the interior of the operating box is fixedly connected to the output end of the third electric push rod, a spring is fixedly connected to the inner wall of the operating box below the guide plate, a screening plate is fixedly connected to the tail of the spring, and a feed plate is fixedly connected to the bottom of the operating box and extends into the interior of the mixing tank below the screening plate.
[0009] Preferably, the crushing rod is located on the movement trajectory of the extrusion plate, and the side of the crushing rod closest to the extrusion plate has a sharp design.
[0010] Preferably, the top of the flip plate is in contact with the bottom of the extrusion plate, and the central axis of the flip plate coincides with that of the extrusion plate.
[0011] Preferably, the slide rod and the connecting block are perpendicular to each other, and the control plate has a horizontal linear slide groove inside.
[0012] Preferably, the guide plate is inclined, and the bottom of the guide plate is located directly above the gap between the two sets of electric crushing rollers.
[0013] Preferably, the sieve plate is located on the trajectory of the pusher plate, and the sieve plate is formed into a vibration structure by springs.
[0014] Preferably, the contact area between the feed plate and the control box is designed to be inclined.
[0015] The working principle and beneficial effects of this utility model are as follows:
[0016] 1. In this utility model, by setting up an extrusion plate, in order to avoid the phenomenon of urea clumping, which would prevent the electric crushing roller from crushing it properly, the first electric push rod is opened to push the extrusion plate to move towards the crushing rod. The crushing rod has a sharp design. After the extrusion plate pushes the urea into contact with the crushing rod, the crushing rod will crush the clumped urea. Then, the second electric push rod is opened to pull down the connecting block. The connecting block drives the slide rod to slide along the inside of the control plate. The control plate applies a downward pulling force to the flipping plate, controlling the flipping plate to flip downward. At this time, the urea on the flipping plate will fall onto the guide plate.
[0017] 2. In this utility model, by setting a sieve plate, the crushed urea will fall onto the sieve plate. At this time, the third electric push rod is turned on, so that it frequently pushes the sieve plate through the push plate. Under the action of the spring, the sieve plate will vibrate and sieve the urea. Some urea that is not completely crushed will stay on the sieve plate, while the remaining urea powder will enter the interior of the mixing tank through the feed plate and be fully mixed with other materials in the mixing tank. Attached Figure Description
[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0020] Figure 2 This is a schematic diagram of the internal structure of the control box of this utility model;
[0021] Figure 3 This is a schematic diagram of the control board structure of this utility model;
[0022] Figure 4 This is a schematic diagram of the sieve plate structure of this utility model.
[0023] In the diagram: 1. Base; 2. Mixing tank; 3. Support plate; 4. Control box; 5. Feed inlet; 6. First electric push rod; 7. Extrusion plate; 8. Crushing rod; 9. Tilting plate; 10. Second electric push rod; 11. Connecting block; 12. Slide rod; 13. Control panel; 14. Guide plate; 15. Electric crushing roller; 16. Third electric push rod; 17. Push plate; 18. Spring; 19. Screening plate; 20. Feed plate. Detailed Implementation
[0024] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.
[0025] Example 1
[0026] A preferred embodiment of the urea mixing device for urea-formaldehyde resin production provided by this utility model is, for example... Figures 1 to 4 As shown: A urea mixing device for the production of urea-formaldehyde resin adhesive includes a base 1, a mixing tank 2 fixedly connected to the top of the base 1, a support plate 3 fixedly connected to the base 1 on the side of the mixing tank 2, an operation box 4 fixedly connected to the top of the support plate 3, a feed inlet 5 fixedly connected to the top of the operation box 4, a first electric push rod 6 fixedly connected inside the operation box 4, an extrusion plate 7 fixedly connected to the output end of the first electric push rod 6, a crushing rod 8 fixedly connected to the inner wall of the operation box 4 on one side of the extrusion plate 7, a tilting plate 9 rotatably connected inside the operation box 4, a second electric push rod 10 fixedly connected to the operation box 4 below the tilting plate 9, a connecting block 11 fixedly connected to the output end of the second electric push rod 10, a sliding rod 12 fixedly connected to the inner wall of the connecting block 11, a control plate 13 fixedly connected to the tilting plate 9 slidably connected to the surface of the sliding rod 12, and a guide plate 14 fixedly connected to the inner wall of the operation box 4 below the tilting plate 9.
[0027] In this embodiment, the crushing rod 8 is located on the movement trajectory of the extrusion plate 7. The side of the crushing rod 8 closest to the extrusion plate 7 has a sharp design. When the first electric push rod 6 is opened, it pushes the extrusion plate 7 toward the crushing rod 8. Since the crushing rod 8 has a sharp design, after the extrusion plate 7 pushes the urea to contact the crushing rod 8, the crushing rod 8 will crush the clumped urea.
[0028] In this embodiment, the top of the flip plate 9 is in contact with the bottom of the extrusion plate 7, and the central axis of the flip plate 9 and the extrusion plate 7 are coincident. The second electric push rod 10 is opened, which pulls down the connecting block 11. The connecting block 11 drives the slide rod 12 to slide along the inside of the control plate 13, and applies a downward pulling force to the flip plate 9 through the control plate 13, thereby controlling the flip plate 9 to flip downward.
[0029] In this embodiment, the slide rod 12 and the connecting block 11 are perpendicular to each other, and the control plate 13 is provided with a horizontal linear groove. By providing the horizontal groove, the sliding force of the slide rod 12 can be converted into a rotational force on the control plate 13.
[0030] Example 2
[0031] Based on Example 1, a preferred embodiment of the urea mixing device for urea-formaldehyde resin production provided by this utility model is as follows: Figures 1 to 4 As shown: Two sets of electric crushing rollers 15 are rotatably connected to the inner wall of the control box 4 below the guide plate 14. A third electric push rod 16 is fixedly connected to the surface of the control box 4. A push plate 17 that penetrates into the interior of the control box 4 is fixedly connected to the output end of the third electric push rod 16. A spring 18 that is fixedly connected to the inner wall of the control box 4 is provided below the guide plate 14. A screen plate 19 is fixedly connected to the tail of the spring 18. A feed plate 20 that is fixedly connected to the bottom of the control box 4 and extends into the interior of the mixing tank 2 is provided below the screen plate 19.
[0032] In this embodiment, the guide plate 14 is inclined, and the bottom of the guide plate 14 is directly above the gap between the two sets of electric crushing rollers 15. The urea on the flip plate 9 will fall onto the guide plate 14 and into the gap between the two sets of electric crushing rollers 15, where it will be crushed by the electric crushing rollers 15.
[0033] In this embodiment, the sieve plate 19 is located on the movement trajectory of the push plate 17. The sieve plate 19 forms a vibration structure through the spring 18. When the third electric push rod 16 is opened, it will frequently push the sieve plate 19 through the push plate 17. Under the action of the spring 18, the sieve plate 19 will form a vibration state, thus sieving the urea.
[0034] In this embodiment, the contact area between the feed plate 20 and the control box 4 is designed to be inclined, which can better allow the urea screened from the sieve plate 19 to fall into the interior of the mixing tank 2.
[0035] The working principle and usage process of this utility model are as follows: First, when using this equipment, urea can be fed into the operating box 4 from the feed inlet 5. The urea will fall onto the tilting plate 9. To avoid the urea from clumping, which would prevent the electric crushing roller 15 from crushing it properly, the first electric push rod 6 is opened to push the extrusion plate 7 towards the crushing rod 8. The crushing rod 8 has a sharp design. After the extrusion plate 7 pushes the urea into contact with the crushing rod 8, the crushing rod 8 will crush the clumped urea. Then, the second electric push rod 10 is opened to pull down the connecting block 11. The connecting block 11 drives the slide rod 12 to slide along the inside of the control plate 13, and the control plate 13 applies a downward pulling force to the tilting plate 9, controlling the tilting plate 9 to tilt downward. At this time, the urea on the tilting plate 9 will fall onto the guide plate 14 and into the gap between the two sets of electric crushing rollers 15, where it will be crushed by the electric crushing rollers 15.
[0036] The crushed urea falls onto the sieve plate 19. At this time, the third electric push rod 16 is turned on, causing it to frequently push the sieve plate 19 through the push plate 17. Under the action of the spring 18, the sieve plate 19 will vibrate, thus sieving the urea. Some urea that is not completely crushed will remain on the sieve plate 19, while the remaining urea powder will enter the mixing tank 2 through the feed plate 20, where it will be fully mixed with other materials.
[0037] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A urea mixing device for the production of urea-formaldehyde resin adhesive, comprising a base (1), characterized in that, A mixing tank (2) is fixedly connected to the top of the base (1). A support plate (3) fixedly connected to the base (1) is provided on the side of the mixing tank (2). An operation box (4) is fixedly connected to the top of the support plate (3). A feed inlet (5) is fixedly connected to the top of the operation box (4). A first electric push rod (6) is fixedly connected inside the operation box (4). An extrusion plate (7) is fixedly connected to the output end of the first electric push rod (6). A crushing rod (7) fixedly connected to the inner wall of the operation box (4) is provided on one side of the extrusion plate (7). 8) The inside of the operation box (4) is rotatably connected to a flip plate (9). A second electric push rod (10) is fixedly connected to the operation box (4) below the flip plate (9). A connecting block (11) is fixedly connected to the output end of the second electric push rod (10). A slide rod (12) is fixedly connected to the inner wall of the connecting block (11). A control plate (13) fixedly connected to the flip plate (9) is slidably connected to the surface of the slide rod (12). A guide plate (14) fixedly connected to the inner wall of the operation box (4) is provided below the flip plate (9).
2. The urea mixing device for producing urea-formaldehyde resin adhesive according to claim 1, characterized in that, Below the guide plate (14) are two sets of electric crushing rollers (15) that are rotatably connected to the inner wall of the operating box (4). A third electric push rod (16) is fixedly connected to the surface of the operating box (4). The output end of the third electric push rod (16) is fixedly connected to a push plate (17) that penetrates into the interior of the operating box (4). Below the guide plate (14) is a spring (18) that is fixedly connected to the inner wall of the operating box (4). The tail of the spring (18) is fixedly connected to a screening plate (19). Below the screening plate (19) is a feed plate (20) that is fixedly connected to the bottom of the operating box (4) and extends into the mixing tank (2).
3. The urea mixing device for producing urea-formaldehyde resin adhesive according to claim 1, characterized in that, The crushing rod (8) is located on the movement trajectory of the extrusion plate (7), and the side of the crushing rod (8) near the extrusion plate (7) has a sharp design.
4. The urea mixing device for producing urea-formaldehyde resin adhesive according to claim 1, characterized in that, The top of the flip plate (9) is in contact with the bottom of the extrusion plate (7), and the central axis of the flip plate (9) and the extrusion plate (7) coincide.
5. The urea mixing device for producing urea-formaldehyde resin adhesive according to claim 1, characterized in that, The slide bar (12) is perpendicular to the connecting block (11), and the control plate (13) has a horizontal linear groove inside.
6. The urea mixing device for producing urea-formaldehyde resin adhesive according to claim 2, characterized in that, The guide plate (14) is inclined, and the bottom of the guide plate (14) is located directly above the gap between the two sets of electric crushing rollers (15).
7. The urea mixing device for producing urea-formaldehyde resin adhesive according to claim 2, characterized in that, The sieve plate (19) is located on the movement trajectory of the push plate (17), and the sieve plate (19) forms a vibration structure through the spring (18).
8. The urea mixing device for producing urea-formaldehyde resin adhesive according to claim 2, characterized in that, The contact area between the feed plate (20) and the control box (4) is designed to be inclined.