A dispensing device for polyurethane foam production

Abstract

The utility model discloses a kind of batching devices for polyurethane foam production, comprising: batching box, the lower end of the batching box is provided with discharge port, the outside wall of the batching box is provided with batching assembly, the upper end of the batching box is provided with mixing assembly, the batching assembly includes inlet pipe and mounting plate, the inlet pipe is fixedly connected to the outside wall of batching box, the side of the inlet pipe close to batching box is provided with chute, the inner wall of the chute and located the rotationally connected batching ring plate of the outside wall of batching box, the outside wall of the batching ring plate is provided with gear slot, the output end of motor one and the one end of mounting plate fixedly connected with rotating rod are penetrated, the outside wall of the rotating rod is fixedly connected with driving gear wheel.The utility model can realize the synchronous and uniform batching of multiple-component raw materials by batching assembly, ensure the accurate proportion of each raw material before mixing, and also can adjust the discharge amount of each raw material, improve the mixing uniformity of raw material.

Description

Technical Field

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

[0002] Polyurethane foam is an important material widely used in industries such as construction, automobiles, and furniture. Its production process requires mixing various raw materials (such as isocyanates, polyols, and foaming agents) in precise proportions and then thoroughly stirring to form a uniform foam system.

[0003] Currently, in the production of polyurethane foam, the raw materials isocyanate and polyether are usually weighed manually. Once the production ratio is met, the raw materials are then added to the mixing tank. However, it is difficult to achieve simultaneous and accurate mixing of multiple components during the process of adding raw materials to the mixing tank, which can easily lead to deviations in the formula ratio and affect product quality and performance. In addition, existing stirring devices are mostly single-layer stirring blades or simple rotating structures, which cannot perform all-round and layered mixing of high-viscosity polyurethane raw materials. This can easily create stirring dead zones, resulting in uneven mixing and affecting the density and stability of the foam. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a batching device for polyurethane foam production. Through the batching components, it is possible to achieve synchronous and uniform batching of multi-component raw materials, ensuring the accurate proportion of each raw material before mixing. At the same time, it is also possible to adjust the feeding amount of each raw material, thereby improving the mixing uniformity of the raw materials.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a batching device for polyurethane foam production, comprising: a batching box, a discharge port provided at the lower end of the batching box, a batching component provided on the outer side wall of the batching box, and a mixing component provided at the upper end of the batching box;

[0006] The batching assembly includes a feed pipe and a mounting plate. The feed pipe is fixedly connected to the outer wall of the batching box, and there are three feed pipes arranged in a circumferential array. A chute is provided on the side of the feed pipe near the batching box. A batching ring plate is rotatably connected to the inner wall of the chute and located on the outer wall of the batching box. The outer wall of the batching ring plate has three symmetrically distributed discharge ports and toothed grooves. A batching hopper is fixedly connected to the upper end of the feed pipe. The mounting plate is fixedly connected to the outer wall of the batching box. A motor is installed at the lower end of the mounting plate. A rotating rod is fixedly connected to the output end of the motor and to one end of the mounting plate. A drive gear is fixedly connected to the outer wall of the rotating rod.

[0007] Preferably, the mixing assembly includes a housing fixedly connected to the upper end of the mixing tank. A second motor is fixedly connected to the upper end of the housing. A gear ring is rotatably connected to the inner wall of the housing. A tripod is fixedly connected to the inner wall of the gear ring. A rotating shaft is fixedly connected to the upper end of the tripod. The output end of the second motor passes through the housing and is fixedly connected to the upper end of the rotating shaft. A driven gear is rotatably connected to the inner wall of the housing. There are four driven gears. A stirring rod is fixedly connected to the lower end of the driven gear. A stirring blade is fixedly connected to the outer wall of one end of the stirring rod, which passes through the housing and the mixing tank.

[0008] Preferably, all four driven gears are located on and mesh with the outer wall of the gear ring.

[0009] Preferably, all three feed pipes are connected to the inner wall of the mixing box, and the inner walls of the three discharge ports are respectively adapted to the inner walls of the three feed pipes.

[0010] Preferably, the drive gear is located on the outer wall of the feeding ring plate, and the drive gear is meshed with the tooth groove.

[0011] Preferably, the inner wall of the dispensing ring plate is rotatably connected to the outer wall of the dispensing box, and both the outer and inner walls of the dispensing ring plate are equipped with sealing gaskets.

[0012] Beneficial effects

[0013] This invention provides a batching device for polyurethane foam production. Compared with the prior art, it has the following advantages:

[0014] (1) A batching device for polyurethane foam production, which can realize the synchronous and uniform batching of multi-component raw materials by setting three feed pipes distributed in a circumferential array and a rotatable batching ring plate, ensuring the accurate proportion of each raw material before mixing, and also adjusting the feed amount of each raw material.

[0015] (2) A batching device for polyurethane foam production, wherein a motor in the mixing component drives the rotating shaft to rotate, thereby driving the tripod, gear ring, and four driven gears meshing with it to rotate synchronously. The driven gears drive the stirring rod and stirring blade to rotate in the batching box, thereby efficiently mixing the raw materials, improving the mixing effect of the raw materials, helping to shorten the mixing time, and improving production efficiency. Attached Figure Description

[0016] Figure 1 This is a front view of the structure of this utility model;

[0017] Figure 2 This is a schematic cross-sectional view of the ingredient box of this utility model;

[0018] Figure 3This is a front view of the ingredient dispensing component structure of this utility model;

[0019] Figure 4 This is a front view of the hybrid component structure of this utility model.

[0020] In the diagram: 1. Batching box; 2. Discharge port; 3. Batching assembly; 4. Mixing assembly; 301. Feed pipe; 302. Mounting plate; 303. Slide chute; 304. Batching ring plate; 305. Discharge port; 306. Gear groove; 307. Batching hopper; 308. Motor 1; 309. Rotating rod; 310. Drive gear; 401. Housing; 402. Motor 2; 403. Gear ring; 404. Tripod; 405. Rotating shaft; 406. Driven gear; 407. Stirring rod; 408. Stirring blade. 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 Figure 1-4 This utility model provides a technical solution: a batching device for polyurethane foam production, comprising: a batching box 1, a discharge port 2 at the lower end of the batching box 1, a batching component 3 on the outer side wall of the batching box 1, and a mixing component 4 at the upper end of the batching box 1.

[0023] The batching assembly 3 includes an inlet pipe 301 and a mounting plate 302. The inlet pipe 301 is fixedly connected to the outer wall of the batching box 1, and there are three inlet pipes 301 arranged in a circumferential array. A chute 303 is provided on the side of the inlet pipe 301 near the batching box 1. A batching ring plate 304 is rotatably connected to the inner wall of the chute 303 and located on the outer wall of the batching box 1. The outer wall of the batching ring plate 304 has three symmetrically distributed discharge ports 305. The feeding assembly 301 is equipped with a toothed groove 306. A feeding hopper 307 is fixedly connected to the upper end of the feeding pipe 301. A mounting plate 302 is fixedly connected to the outer wall of the feeding box 1. A motor 308 is mounted on the lower end of the mounting plate 302. Motor 308 is a self-locking motor; its output shaft can self-lock when power is off (this is prior art). A rotating rod 309 is fixedly connected to the output end of motor 308 and to one end of the mounting plate 302. A drive gear 310 is fixedly connected to the outer wall of the rotating rod 309. The feeding assembly 3 enables uniform and synchronous feeding of multi-component raw materials, meeting the needs of multi-component formulations in polyurethane foam production and improving mixing uniformity.

[0024] The mixing assembly 4 includes a housing 401 fixedly connected to the upper end of the mixing tank 1. A second motor 402 is fixedly connected to the upper end of the housing 401. A gear ring 403 is rotatably connected to the inner wall of the housing 401. A tripod 404 is fixedly connected to the inner wall of the gear ring 403. A rotating shaft 405 is fixedly connected to the upper end of the tripod 404. The output end of the second motor 402 passes through the housing 401 and is fixedly connected to the upper end of the rotating shaft 405. Four driven gears 406 are rotatably connected to the inner wall of the housing 401. A stirring rod 407 is fixedly connected to the lower end of the driven gears 406. A stirring blade 408 is fixedly connected to the outer wall of one end of the stirring rod 407, which passes through the housing 401 and the mixing tank 1. The mixing assembly 4 can mix the raw materials and improve the mixing effect.

[0025] The four driven gears 406 are all located on the outer wall of the gear ring 403 and mesh with it. The rotation of the gear ring 403 drives the four driven gears 406 to rotate, which in turn drives the stirring blades 408 to mix the raw materials.

[0026] All three feed pipes 301 are connected to the inner wall of the batching box 1, and the inner walls of the three discharge ports 305 are respectively adapted to the inner walls of the three feed pipes 301. The raw materials are transported to the inner wall of the batching box 1 through the feed pipes 301, and the discharge port 305 is aligned with the feed pipe 301 by rotating the batching ring plate 304 to precisely control the discharge amount of each raw material.

[0027] The drive gear 310 is located on the outer wall of the feeding ring plate 304, and the drive gear 310 is meshed with the tooth groove 306. The meshing of the drive gear 310 and the tooth groove 306 ensures that the feeding ring plate 304 rotates along the outer wall of the feeding box 1, thereby achieving precise alignment of the discharge port 305.

[0028] The inner wall of the batching ring plate 304 is rotatably connected to the outer wall of the batching box 1, and sealing gaskets are installed on both the outer and inner walls of the batching ring plate 304. The sealing gaskets prevent the raw materials from leaking or contaminating during the batching process.

[0029] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0030] During operation, three raw materials are added to three mixing hoppers 307. The three raw materials then flow into the mixing box 1 through the feed pipes 301. While the raw materials are being added to the mixing box 1, motor 308 can be started to drive the rotating rod 309, which in turn drives the drive gear 310 to rotate. The drive gear 310 meshes with the tooth groove 306, thereby rotating the mixing ring plate 304. This ensures that the discharge port 305 is aligned sequentially with the feed pipe 301, precisely controlling the amount of each raw material being fed. Simultaneously, the three raw materials can be fed synchronously, increasing the feeding speed. After mixing is complete, motor 308 can be started in reverse to drive the mixing process. Rotating rod 309 rotates, causing the batching ring plate 304 to rotate in the opposite direction, so that the discharge port 305 is not aligned with the feed pipe 301, thereby preventing raw material leakage. After the raw material is added to the batching box 1, motor 402 can be started to drive the rotating shaft 405 to rotate. The rotation of the rotating shaft 405 drives the triangular frame 404 and the gear ring 403 to rotate. The gear ring 403 meshes with four driven gears 406, driving the four driven gears 406 to rotate synchronously. The driven gears 406 drive the stirring rod 407 and the stirring blade 408 to rotate in the batching box 1, so as to carry out all-round stirring of the raw material and improve the mixing effect of the raw material.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] 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 batching device for polyurethane foam production, comprising: A mixing box (1) is characterized in that: a discharge port (2) is provided at the lower end of the mixing box (1), a mixing component (3) is provided on the outer side wall of the mixing box (1), and a mixing component (4) is provided at the upper end of the mixing box (1); The ingredient preparation assembly (3) includes an inlet pipe (301) and a mounting plate (302). The inlet pipe (301) is fixedly connected to the outer wall of the ingredient preparation box (1), and there are three inlet pipes (301) arranged in a circumferential array. A chute (303) is provided on the side of the inlet pipe (301) near the ingredient preparation box (1). A ingredient preparation ring plate (304) is rotatably connected to the inner wall of the chute (303) and located on the outer wall of the ingredient preparation box (1). The outer wall of the ingredient preparation ring plate (304) has three symmetrically distributed discharge ports. 305), the outer side wall of the batching ring plate (304) is provided with a toothed groove (306), the upper end of the feed pipe (301) is fixedly connected to the batching hopper (307), the mounting plate (302) is fixedly connected to the outer side wall of the batching box (1), the lower end of the mounting plate (302) is equipped with a motor (308), the output end of the motor (308) and the end that passes through the mounting plate (302) are fixedly connected to a rotating rod (309), and the outer side wall of the rotating rod (309) is fixedly connected to a drive gear (310).

2. The batching device for polyurethane foam production according to claim 1, characterized in that: The mixing component (4) includes a housing (401) fixedly connected to the upper end of the mixing tank (1). A motor (402) is fixedly connected to the upper end of the housing (401). A gear ring (403) is rotatably connected to the inner wall of the housing (401). A tripod (404) is fixedly connected to the inner wall of the gear ring (403). A rotating shaft (405) is fixedly connected to the upper end of the tripod (404). The output end of the motor (402) passes through the housing (401) and is fixedly connected to the upper end of the rotating shaft (405). A driven gear (406) is rotatably connected to the inner wall of the housing (401). There are four driven gears (406). A stirring rod (407) is fixedly connected to the lower end of the driven gear (406). A stirring blade (408) is fixedly connected to the outer wall of one end of the stirring rod (407) that passes through the housing (401) and the mixing tank (1).

3. The batching device for polyurethane foam production according to claim 2, characterized in that: The four driven gears (406) are all located on the outer side wall of the gear ring (403) and mesh with it.

4. The batching device for polyurethane foam production according to claim 1, characterized in that: All three feed pipes (301) are connected to the inner wall of the mixing box (1), and the inner walls of the three discharge ports (305) are respectively adapted to the inner walls of the three feed pipes (301).

5. A batching device for polyurethane foam production according to claim 1, characterized in that: The drive gear (310) is located on the outer side wall of the feeding ring plate (304), and the drive gear (310) is meshed with the tooth groove (306).

6. The batching device for polyurethane foam production according to claim 1, characterized in that: The inner wall of the dispensing ring plate (304) is rotatably connected to the outer wall of the dispensing box (1), and both the outer and inner walls of the dispensing ring plate (304) are equipped with sealing gaskets.

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