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CN-224207957-U - Catalyst charging tank for polyurethane prepolymer production

CN224207957UCN 224207957 UCN224207957 UCN 224207957UCN-224207957-U

Abstract

The utility model relates to the technical field of polyurethane prepolymer production, and discloses a catalyst charging bucket for polyurethane prepolymer production, which comprises a mixing mechanism, a feeding mechanism and a main body mechanism, wherein the mixing mechanism is positioned in the main body mechanism, the feeding mechanism is positioned at the bottom of the main body mechanism, the mixing mechanism comprises a motor, the output end of the motor is fixedly connected with an external gear I, the external wall of the external gear I is meshed with an external gear II, and the middle part of the external gear II is fixedly connected with a stirring rod. According to the utility model, the output end of the motor is fixedly connected with the external gear I, the external gear I can be driven to rotate through the motor, the external gear II meshed with the external wall can be driven to rotate when the external gear I rotates, the external gear II is fixedly connected with the stirring rod, and the stirring rod can be driven to be arranged in the charging tank main body when the external gear II rotates.

Inventors

  • Tan Yaojian
  • LUO BENZHE
  • WAN MIN

Assignees

  • 滁州市赢聚高分子材料有限公司

Dates

Publication Date
20260508
Application Date
20250408

Claims (7)

  1. 1. The catalyst charging tank for producing the polyurethane prepolymer is characterized by comprising a mixing mechanism (1), a feeding mechanism (2) and a main body mechanism (3), wherein the mixing mechanism (1) is positioned in the main body mechanism (3), and the feeding mechanism (2) is positioned at the bottom of the main body mechanism (3); The mixing mechanism (1) comprises a motor (101), wherein an external gear I (102) is fixedly connected to the output end of the motor (101), an external gear II (103) is meshed with the external wall of the external gear I (102), and a stirring rod (104) is fixedly connected to the middle of the external gear II (103).
  2. 2. The catalyst charging tank for producing polyurethane prepolymer according to claim 1, wherein an inner gear (105) is meshed with an outer wall of the second outer gear (103).
  3. 3. The catalyst charging tank for producing polyurethane prepolymer according to claim 1, wherein a connecting bracket (106) is rotatably connected to the top of the second external gear (103).
  4. 4. The catalyst charging tank for polyurethane prepolymer production of claim 1, wherein the charging mechanism (2) comprises a storage hopper (201), a guide groove (202) is fixedly connected to the outer wall of the storage hopper (201), and a mounting bracket (203) is fixedly connected to the bottom of the guide groove (202).
  5. 5. The catalyst charging tank for polyurethane prepolymer production of claim 4, wherein a feeding pipe (204) is fixedly connected to the inside of the storage hopper (201), and spiral feeding blades (205) are rotatably connected to the inner wall of the feeding pipe (204).
  6. 6. The catalyst charging tank for polyurethane prepolymer production according to claim 1, wherein the main body mechanism (3) comprises a charging tank main body (301), and a top cover (302) is fixedly connected to the upper surface of the charging tank main body (301).
  7. 7. The catalyst charging tank for polyurethane prepolymer production of claim 6, wherein the outer wall of the charging tank main body (301) is fixedly connected with a main body bracket (303), and the bottom of the main body bracket (303) is fixedly connected with a bottom plate (304).

Description

Catalyst charging tank for polyurethane prepolymer production Technical Field The utility model relates to the technical field of polyurethane prepolymer production, in particular to a catalyst charging tank for polyurethane prepolymer production. Background Polyurethane prepolymers are an important intermediate in the synthesis of polyurethane materials. It is obtained by reacting polyisocyanate and polyol under certain conditions. In molecular structure, the polyurethane prepolymer has specific active groups which provide reactive sites for subsequent further reactions. Polyurethane prepolymers have a variety of advantageous properties, for example, they can exhibit varying degrees of flexibility, hardness, abrasion resistance, etc., depending on the formulation. In the aspect of industrial application, the modified polyurethane foam is widely applied to the fields of coating, adhesive, elastomer, foam plastics and the like. The synthesis process is relatively controllable, and polyurethane prepolymer meeting different use requirements can be obtained by adjusting factors such as the types, the proportion, the reaction conditions and the like of raw materials, so that a foundation is laid for customizing the performances of various polyurethane products. In the production process of polyurethane prepolymer, a catalyst is usually added to accelerate the reaction, but in the process of adding the catalyst, agglomeration phenomenon may occur due to uneven mixing of the catalyst, so that the overall reaction efficiency is affected. Disclosure of utility model In order to solve the technical problems, the utility model provides a catalyst charging tank for producing polyurethane prepolymer. The catalyst charging tank for producing the polyurethane prepolymer comprises a mixing mechanism, a feeding mechanism and a main body mechanism, wherein the mixing mechanism is positioned in the main body mechanism, and the feeding mechanism is positioned at the bottom of the main body mechanism; the mixing mechanism comprises a motor, an external gear I is fixedly connected to the output end of the motor, an external gear II is meshed with the external wall of the external gear I, and a stirring rod is fixedly connected to the middle of the external gear II. Through the technical scheme, the output fixed connection external gear of motor is first, can drive external gear one through the motor and rotate, can drive the external gear two with outer wall engagement when external gear one rotates and rotate, sets up external gear two fixed connection puddler, can drive the puddler and carry out rotatory stirring in reinforced jar main part inside when external gear two rotates to can ensure catalyst and polyurethane prepolymer intensive mixing, promote reaction efficiency. As a further improvement of the scheme, the outer wall of the second external gear is meshed with an internal gear. Through the technical scheme, the second external gear is meshed with the internal gear, and the internal gear is fixedly connected with the top cover, so that the internal gear cannot rotate when the second external gear rotates, and therefore the second external gear and the stirring rod can be caused to revolve along the inner wall of the internal gear while rotating, the stirring range of the stirring rod can be further increased, and the mixing effect of the catalyst is further improved. As a further improvement of the scheme, the top of the second external gear is rotatably connected with a connecting bracket. Through the technical scheme, the second external gear is rotated to be connected with the connecting support, so that the second external gear can be fixed through the connecting support while rotation of the second external gear is not influenced, stability of the stirring rod during rotation can be further improved, vibration and abrasion are reduced, and service life of equipment is prolonged. As a further improvement of the scheme, the feeding mechanism comprises a storage hopper, wherein the outer wall of the storage hopper is fixedly connected with a guide chute, and the bottom of the guide chute is fixedly connected with a mounting bracket. Through above-mentioned technical scheme, storage hopper fixed connection baffle box sets up the baffle box through the outer wall at the storage hopper to can get into the inside short storage and the gathering of storage hopper with the catalyst guide through the baffle box, finally by the inside completion reaction of feeding cylinder main part of material loading pipe and spiral feeding She Songru again, set up baffle box fixed connection installing support, through setting up the installing support in the bottom of baffle box, thereby can fix the baffle box through the installing support, avoid it to take place to rock and collapse in the course of the work, increase whole equipment's steadiness. As a further improvement of the scheme, a feeding pipe is fixedly connected inside the