Continuous feeding system for polyurethane foaming

Abstract

The utility model discloses a continuous feeding system for polyurethane foaming, relates to the technical field of polyurethane foam, and provides the following scheme aiming at the problems of non-uniform foaming, incapability of continuously feeding and low practicability due to the fact that raw materials are not fully mixed in the background technology: the continuous feeding system for polyurethane foaming comprises a feeding mechanism, the feeding mechanism comprises a mixing tank and a mixing cylinder arranged below the mixing tank, a first mixing assembly is arranged in the mixing tank, and the first mixing assembly comprises a first mixing motor, a mounting shaft connected to the outer wall of the bottom end of an output shaft of the first mixing motor through a coupler and an impeller fixedly arranged on the outer wall of the lower portion of the mounting shaft; an overflow pipe is arranged on one side of the mixing tank, and a second mixing assembly is arranged in the mixing cylinder. According to the high-pressure foaming machine, overflowing raw materials can be mixed, the situation that the high-pressure foaming machine cannot obtain sufficient raw materials due to the fact that the mixing time of the raw materials in the mixing tank is insufficient is avoided, then continuous feeding is achieved, and practicability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to polyurethane foam technical field especially relates to a kind of polyurethane foaming continuous feeding system. BACKGROUND

[0002] Polyurethane rigid foam is with isocyanate and polyether as main raw material, under the action of foaming agent, catalyst, flame retardant and multiple kinds of adjuvants, by special equipment mixing, high-pressure spray site foaming and the high molecular polymer formed.

[0003] Through the retrieval, Chinese patent (application number is "202323472779.0") discloses "a kind of polyurethane soft foam production with feeding device", the above-mentioned device includes box, the bottom of the box is equipped with discharge cylinder, and the left side of box is movably connected with first filter drawer, the left side of discharge cylinder is movably connected with second filter drawer, the back of box is equipped with heating device assembly, and the inside of box is equipped with heating pipe, but, the above-mentioned device is not fully mixed in the use process, causes uneven foaming, and cannot continuously uninterruptedly feed, and the practicability is low. UTILITY MODEL CONTENT

[0004] The utility model provides a kind of polyurethane foaming continuous feeding system, solve the problem that the feeding device of comparative file proposes is not fully mixed to raw material, causes uneven foaming, and cannot continuously uninterruptedly feed, and the practicability is low.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A kind of polyurethane foaming continuous feeding system, including feeding mechanism, the feeding mechanism includes mixing tank and the mixing cylinder being equipped in mixing tank lower, first mixing assembly is equipped in the mixing tank, the first mixing assembly includes first mixing motor, the mounting shaft on the outer wall of the bottom end of first mixing motor output shaft by coupling and the impeller being fixedly arranged on the outer wall of the lower portion of mounting shaft, overflow pipe is equipped in the side of mixing tank, second mixing assembly is equipped in the mixing cylinder, the second mixing assembly second mixing motor, the connecting shaft on the outer wall of one end of second mixing motor output shaft by coupling, the connecting plate being fixedly arranged on the outer wall of one end of connecting shaft and several guide plates being respectively fixedly arranged on the outer wall of one side of connecting plate.

[0007] Preferably, the top outer wall of the mixing tank is connected to the top cover by bolts, the bottom inner wall of the mixing tank is fixedly provided with a communication pipe, the bottom end of the communication pipe is fixedly provided on the top inner wall of the mixing cylinder, the outer wall of one side of the mixing cylinder is fixedly provided with a discharge pipe, and a discharge port is opened on the outer wall inside the discharge pipe on one side of the mixing cylinder.

[0008] Preferably, two feeding pipes are fixed on the outer wall of the bottom of the top cover, and a flow regulating valve is arranged on the outer wall of one end of each feeding pipe.

[0009] Preferably, a mounting rack is fixed on the outer wall of the top of the top cover, and the first mixing motor is connected to the outer wall of the top of the mounting rack through bolts, the upper part of the mounting shaft penetrates through the outer wall of the top of the top cover and is connected to the outer wall of the top of the top cover through a bearing, and a fixing block is fixed on the inner wall of the lower part of the mixing tank, and the mounting shaft penetrates through the outer wall of the bottom of the fixing block and is connected to the outer wall of the bottom of the fixing block through a bearing.

[0010] Through the above scheme, the raw materials are transported into the mixing tank through the feeding pipe, the mounting shaft and the impeller are driven to rotate by the output shaft of the first mixing motor, the raw materials in the mixing tank are stirred and mixed by the impeller, and after a certain time of mixing, the raw materials enter the mixing cylinder through the communication pipe.

[0011] Preferably, the top end of the overflow pipe is fixed on the inner wall of the upper part of the mixing tank, and the bottom end of the overflow pipe is fixed on the inner wall of the top of the mixing cylinder.

[0012] Preferably, a mounting rack is fixed on the outer wall of the top of the top cover, and the first mixing motor is connected to the outer wall of the top of the mounting rack through bolts, the upper part of the mounting shaft penetrates through the outer wall of the top of the top cover and is connected to the outer wall of the top of the top cover through a bearing, and a fixing block is fixed on the inner wall of the lower part of the mixing tank, and the mounting shaft penetrates through the outer wall of the bottom of the fixing block and is connected to the outer wall of the bottom of the fixing block through a bearing.

[0013] Through the above scheme, the raw materials are transported into the mixing tank through the feeding pipe, the mounting shaft and the impeller are driven to rotate by the output shaft of the first mixing motor, the raw materials in the mixing tank are stirred and mixed by the impeller, and after a certain time of mixing, the raw materials enter the mixing cylinder through the communication pipe.

[0014] The beneficial effects of the present application are as follows:

[0015] The overflow pipe transports the overflowed raw materials in the mixing tank into the mixing cylinder, the connecting shaft, the connecting plate and the plurality of guide plates are driven to rotate by the output shaft of the second mixing motor, the water in the mixing cylinder is transported and mixed by the guide plates, the overflowed raw materials can be mixed, the mixing time of the raw materials in the mixing tank is prevented from being insufficient to cause the high-pressure foaming machine to obtain insufficient raw materials, and then uninterrupted feeding is realized, and the practicability is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The present application provides a whole front view structural schematic diagram of a polyurethane foaming continuous feeding system.

[0017] Figure 2 A feeding mechanism main view structural schematic drawing of a polyurethane foaming continuous feeding system is provided in the utility model.

[0018] Figure 3 A first mixing assembly main view structural schematic drawing of a polyurethane foaming continuous feeding system is provided in the utility model.

[0019] Figure 4 A second mixing assembly main view structural schematic drawing of a polyurethane foaming continuous feeding system is provided in the utility model.

[0020] Figure 5 A second mixing assembly side view structural schematic drawing of a polyurethane foaming continuous feeding system is provided in the utility model.

[0021] In the drawing: 1, feeding mechanism; 101, mixing tank; 102, top cover; 103, communication pipe; 104, mixing cylinder; 105, discharge pipe; 2, feed pipe; 3, first mixing assembly; 301, mounting frame; 302, first mixing motor; 303, mounting shaft; 304, impeller; 305, fixed block; 4, overflow pipe; 5, second mixing assembly; 501, fixed frame; 502, second mixing motor; 503, connecting shaft; 504, connecting plate; 505, flow guide plate; 506, fixed ring; 507, mounting rod; 508, limiting block. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0023] Embodiment 1, refer to Figures 1-3The utility model provides a kind of polyurethane foaming continuous feeding system, including feeding mechanism 1, feeding mechanism 1 includes mixing tank 101 and be located the mixing cylinder 104 below mixing tank 101, the top outer wall of mixing tank 101 is bolted with top cover 102, the bottom inner wall of mixing tank 101 is fixed with communication pipe 103, the bottom end of communication pipe 103 is fixed on the top inner wall of mixing cylinder 104, the outer wall of communication pipe 103 one end is installed with solenoid valve, the outer wall of one side of mixing cylinder 104 located inside discharge pipe 105 is fixed with discharge port, the bottom outer wall of top cover 102 is fixed with two feed pipes 2, the outer wall of one end of two feed pipes 2 is installed with flow regulating valve, first mixing assembly 3 is located in mixing tank 101, first mixing assembly 3 includes first mixing motor 302, mounting shaft 303 connected on the bottom end outer wall of the output shaft of first mixing motor 302 by coupling and impeller 304 fixed on the lower outer wall of mounting shaft 303, mounting bracket 301 is fixed on the top outer wall of top cover 102, first mixing motor 302 is bolted on the top outer wall of mounting bracket 301, and the upper portion of mounting shaft 303 is connected to the top outer wall of top cover 102 by bearing and penetrates, fixed block 305 is fixed on the lower inner wall of mixing tank 101, and the bottom outer wall of fixed block 305 is connected to the mounting shaft 303 by bearing and penetrates.

[0024] Embodiment 2, refer to Figures 4-5 The utility model provides a kind of polyurethane foaming continuous feeding system, still include overflow pipe 4, the top end of overflow pipe 4 is fixed on the upper inner wall of mixing tank 101, and the bottom end of overflow pipe 4 is fixed on the top inner wall of mixing cylinder 104, second mixing assembly 5 is located in mixing cylinder 104, second mixing motor 502 of second mixing assembly 5, connecting shaft 503 connected on the outer wall of one end of the output shaft of second mixing motor 502 by coupling, connecting plate 504 fixed on the outer wall of one end of connecting shaft 503 and several guide plates 505 respectively fixed on the outer wall of one side of connecting plate 504, fixed frame 501 is fixed on the outer wall of one side of mixing cylinder 104, and second mixing motor 502 is bolted on the outer wall of one side of fixed frame 501, and connecting shaft 503 is connected to the outer wall of one side of mixing cylinder 104 by bearing and penetrates, and connecting plate 504 is rotatably installed in mixing cylinder 104, and several guide plates 505 are respectively abutted on the inner wall of mixing cylinder 104, fixed ring 506 is located in mixing cylinder 104, and several guide plates 505 are respectively fixed on the outer wall of one side of fixed ring 506, and several mounting rods 507 are fixed on the outer wall of fixed ring 506, and several mounting rods 507 one end outer wall is fixed with limit block 508, and the limit block 508 one side is abutted on the inner wall of mixing cylinder 104.

[0025] Working principle: the feed pipe 2 transports raw materials into the mixing tank 101, the first mixing motor 302 output shaft drives the installation shaft 303 and impeller 304 rotation, the impeller 304 carries out the stirring mixing to the raw materials in the mixing tank 101, after mixing for a certain time, the raw materials enter into the mixing cylinder 104 through the communication pipe 103, the overflow pipe 4 transports the overflow raw materials in the mixing tank 101 into the mixing cylinder 104, the second mixing motor 502 output shaft drives the connecting shaft 503, connecting plate 504 and multiple guide vanes 505 rotation, the guide vanes 505 transport and mix the water in the mixing cylinder 104, prevent the raw materials in the mixing tank 101 from being insufficiently mixed to cause the high-pressure foaming machine to obtain sufficient raw materials.

[0026] The above merely describes a preferred embodiment of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art, according to the technical scheme and the inventive concept of the present application, can make equivalent replacement or change within the technical range disclosed by the present application, which should be covered by the protection scope of the present application.

Claims

1. A polyurethane foaming continuous feeding system comprising a feeding mechanism (1), characterized in that, The feeding mechanism (1) comprises a mixing tank (101) and a mixing cylinder (104) arranged below the mixing tank (101); The mixing tank (101) is provided with a first mixing assembly (3), and the first mixing assembly (3) comprises a first mixing motor (302), a mounting shaft (303) connected to the outer wall of the bottom end of the output shaft of the first mixing motor (302) through a shaft coupling, and an impeller (304) fixedly arranged on the outer wall of the lower part of the mounting shaft (303); One side of the mixing tank (101) is provided with an overflow pipe (4); The mixing cylinder (104) is provided with a second mixing assembly (5), and the second mixing assembly (5) comprises a second mixing motor (502), a connecting shaft (503) connected to the outer wall of one end of the output shaft of the second mixing motor (502) through a shaft coupling, a connecting plate (504) fixedly arranged on the outer wall of one end of the connecting shaft (503), and a plurality of guide plates (505) fixedly arranged on the outer wall of one side of the connecting plate (504).

2. The polyurethane foaming continuous feeding system according to claim 1, wherein, The outer wall of the top of the mixing tank (101) is connected with a top cover (102) through bolts, the inner wall of the bottom of the mixing tank (101) is fixedly provided with a communication pipe (103), the bottom end of the communication pipe (103) is fixedly arranged on the inner wall of the top of the mixing cylinder (104), the outer wall of one side of the mixing cylinder (104) is fixedly provided with a discharge pipe (105), and the outer wall of one side of the mixing cylinder (104) inside the discharge pipe (105) is provided with a discharge port.

3. The polyurethane foaming continuous feeding system according to claim 2, wherein, The bottom outer wall of the top cover (102) is fixedly provided with two feed pipes (2), and the outer wall of one end of each of the two feed pipes (2) is clamped with a flow regulating valve.

4. The polyurethane foaming continuous feeding system according to claim 2, wherein, The top outer wall of the top cover (102) is fixedly provided with a mounting bracket (301), and the first mixing motor (302) is connected to the top outer wall of the mounting bracket (301) through bolts, the upper part of the mounting shaft (303) penetrates and is connected to the top outer wall of the top cover (102) through a bearing, the lower inner wall of the mixing tank (101) is fixedly provided with a fixing block (305), and the mounting shaft (303) penetrates and is connected to the bottom outer wall of the fixing block (305) through a bearing.

5. The polyurethane foaming continuous feeding system according to claim 1, wherein, The top end of the overflow pipe (4) is fixedly arranged on the upper inner wall of the mixing tank (101), and the bottom end of the overflow pipe (4) is fixedly arranged on the top inner wall of the mixing cylinder (104).

6. The polyurethane foaming continuous feeding system according to claim 1, wherein, The fixed frame (501) is fixed on one side outer wall of the mixing cylinder (104), the second mixing motor (502) is connected on one side outer wall of the fixed frame (501) through bolt, the connecting shaft (503) is connected on one side outer wall of the mixing cylinder (104) through bearing, the connecting plate (504) is rotatably installed in the mixing cylinder (104), the plurality of guide plates (505) are respectively abutted on the inner wall of the mixing cylinder (104), the fixed ring (506) is arranged in the mixing cylinder (104), the plurality of guide plates (505) are respectively fixed on one side outer wall of the fixed ring (506), the plurality of mounting rods (507) are fixed on the outer wall of the fixed ring (506), the limiting block (508) is fixed on one end of the outer wall of the mounting rod (507), and one side of the limiting block (508) is abutted on the inner wall of the mixing cylinder (104).

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