Polyurethane foaming agent filling device

Abstract

The utility model discloses a polyurethane foaming agent filling device, and relates to the technical field of glass cement production. The device comprises a filling barrel, a stirring shaft, a coaxial reversing mechanism, a filling pipeline assembly and a foaming agent storage box, the filling barrel is vertically arranged in the center of the mixing reaction kettle, and a filling branch pipe is arranged on the surface of the filling barrel; the stirring shaft is arranged in the filling barrel in a penetrating manner; a stirring paddle is fixed at the bottom end of the stirring shaft; the coaxial reversing mechanism is fixed at the top of the mixing reaction kettle and drives the filling barrel and the stirring shaft to rotate simultaneously in a mechanical transmission manner, and the rotating directions are opposite; the filling pipeline assembly is used for connecting the foaming agent storage box and the filling barrel. According to the foaming agent filling device, a foaming agent can be uniformly and stably filled into a target area, the foaming agent can be efficiently and uniformly mixed with a mixture, and the problems that an existing foaming agent filling device is difficult to uniformly and stably fill the foaming agent into the target area, and the mixing uniformity of the foaming agent and the mixture is not efficient enough are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of glass glue production, in particular to a polyurethane foaming agent filling device. Background Art

[0002] Glass glue is a commonly used adhesive used to fix, seal and bond glass and other materials. In the production of glass glue, polyurethane foaming agent is a commonly used additive to promote the curing and foaming process of glue. The general application methods of polyurethane foaming agent in the production of glass glue include: formula design, designing a suitable formula according to the specific requirements and performance needs of the glass glue product, and the polyurethane foaming agent is usually added to the formula of the glass glue in a certain proportion; mixing preparation, mixing the raw materials of the glass glue according to the formula ratio, usually including resin, filler, solvent and other ingredients; adding foaming agent, during the mixing preparation process, gradually adding the polyurethane foaming agent to the mixture, and stirring it thoroughly to ensure that the foaming agent and other ingredients are fully mixed; stirring evenly, continue to stir the mixture to evenly disperse the foaming agent and other ingredients to ensure that the foaming agent can evenly participate in the subsequent curing and foaming process; curing and foaming, coating or injecting the mixture to the required position, and curing and foaming, the polyurethane foaming agent will produce gas during the curing process, causing the glue to expand and foam, and at the same time, the foaming agent can also promote the curing of the glue and improve the strength and stability of the product.

[0003] After searching, the announcement number CN108515658A, the announcement date 2018.09.11 discloses a foaming agent filling device for preparing foam plastics, including a bracket, a foaming agent storage box, a gas storage tank and a cylinder, the cylinder is fixed in the middle of the upper part of the bracket, and the gas storage tank is fixed on the left side of the cylinder, the upper middle part of the gas storage tank is connected to an exhaust pipe, a pressure gauge is arranged in front of the gas storage tank, and the gas storage tank is connected to the gas delivery port arranged on the cylinder through a gas delivery pipeline, the foaming agent feeding pump is connected to the foaming agent input port arranged on the cylinder through a pipeline, and the cylinder is connected to a discharge port below. The foaming agent filling device for preparing foam plastics adopts a foaming agent feeding pump to add the foaming agent, and an air storage box is arranged on the side to inject air, and the material and the foaming agent are mixed and added inside the stirring device, so as to improve the mixing effect, better process the foamed plastic, and promote the development of foaming agent equipment.

[0004] The patent has the following deficiencies:

[0005] 1. The filling device only uses a filling pipe to connect the mixing cylinder, which makes it difficult to evenly and stably fill the foaming agent to the target area, and is prone to problems such as uneven expansion or hot and cold spots;

[0006] 2. The filling device is difficult to efficiently mix the foaming agent with the mixture, and the filling effect is not ideal. Utility Model Content

[0007] The utility model aims to provide a polyurethane foaming agent filling device, which can uniformly and stably fill the foaming agent into a target area, and can efficiently and uniformly mix the foaming agent with a mixture, thereby solving the problem that the existing foaming agent filling device is difficult to uniformly and stably fill the foaming agent into the target area, and the mixing uniformity of the foaming agent and the mixture is not efficient enough.

[0008] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0009] The utility model discloses a polyurethane foaming agent filling device, comprising a filling cylinder, a stirring shaft, a coaxial reversing mechanism, a filling pipeline assembly and a foaming agent storage tank. The filling cylinder is vertically arranged at the inner center of a mixing reactor, and a filling branch pipe is arranged on the surface of the filling cylinder; the stirring shaft is penetrated and arranged in the filling cylinder, and a stirring paddle is fixed at the bottom end of the stirring shaft; the coaxial reversing mechanism is fixed on the top of the mixing reactor, and drives the filling cylinder and the stirring shaft to rotate simultaneously and in opposite directions by means of mechanical transmission; the filling pipeline assembly is used for connecting the foaming agent storage tank and the filling cylinder.

[0010] Furthermore, a plurality of filling branch pipes are provided, which are evenly distributed along the radial circumference of the filling cylinder and are equally spaced along the axial direction of the filling cylinder.

[0011] Furthermore, the filling cylinder is configured as a hollow cylinder, a flow channel for the foaming agent to flow through is configured inside the filling cylinder, and the filling branch pipe is connected to the filling cylinder.

[0012] Furthermore, the coaxial reversing mechanism includes a first bevel gear, an outer cylinder, a second bevel gear, a support frame, a third bevel gear and a motor; the first bevel gear is fixedly sleeved on the outer cylinder, the second bevel gear is fixedly sleeved on the stirring shaft, the third bevel gear is respectively meshed with the first bevel gear and the second bevel gear, and the third bevel gear is fixedly sleeved on the output shaft of the motor; the support frame is used to support the stirring shaft and the outer cylinder, and the support frame and the motor are both fixed on the top of the mixing reactor.

[0013] Furthermore, a rotating joint is provided at the top end of the filling cylinder, and the top end of the rotating joint is connected to the bottom end of the outer cylinder.

[0014] Furthermore, the filling pipeline assembly includes a discharge pipe, a feed pump, a feed pipe, a three-way connector, a suction pipe and a flushing pipe; one end of the discharge pipe is connected to the rotary joint, the other end of the discharge pipe is connected to the outlet of the feed pump, the inlet of the feed pump is connected to one end of the feed pipe, the other end of the feed pipe is fixed with a three-way connector, and the other two ends of the three-way connector are respectively fixed with a suction pipe and a flushing pipe; the suction pipe is inserted into the foaming agent storage tank, a first valve is provided on the suction pipe, and a second valve is provided on the flushing pipe.

[0015] The utility model has the following beneficial effects:

[0016] 1. The utility model provides a filling cylinder and a plurality of filling branches, so that the filling device can fill the foaming agent evenly and stably into the target area, saving the mixing time of filling and avoiding problems such as uneven expansion or hot and cold spots.

[0017] 2. The utility model provides a stirring shaft, a stirring paddle, a filling cylinder, a filling branch pipe and a coaxial reversing mechanism, so that the filling device can efficiently mix the foaming agent with the mixture evenly, and the filling effect is greatly improved. The filling cylinder and the filling branch pipe are used for filling the foaming agent on the one hand, and play a stirring role on the other hand. The reverse stirring between the filling cylinder and the stirring paddle can fully disperse the foaming agent and promote its activation and expansion. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments are briefly introduced below.

[0019] Figure 1 It is a three-dimensional schematic diagram of the overall structure;

[0020] Figure 2 It is a schematic diagram of the filling cylinder and the stirring shaft structure;

[0021] Figure 3 for Figure 2 A schematic diagram of the structure enlargement in the middle;

[0022] Figure 4 This is a schematic diagram of the filling pipeline assembly structure.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1. Filling cylinder; 2. Stirring shaft; 3. Coaxial reversing mechanism; 4. Filling pipeline assembly; 5. Foaming agent storage tank; 6. Mixing reactor; 11. Filling branch pipe; 12. Rotary joint; 21. Stirring paddle; 31. First bevel gear; 32. Outer cylinder; 33. Second bevel gear; 34. Support frame; 35. Third bevel gear; 36. Motor; 41. Discharge pipe; 42. Feeding pump; 43. Feeding pipe; 44. Three-way connector; 45. Suction pipe; 46. First valve; 47. Flushing pipe; 48. Second valve. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0026] See also Figures 1-2 As shown, the utility model is a polyurethane foaming agent filling device, comprising a filling cylinder 1, a stirring shaft 2, a coaxial reversing mechanism 3, a filling pipe assembly 4 and a foaming agent storage tank 5. The filling cylinder 1 is vertically arranged at the inner center of the mixing reactor 6, and a filling branch pipe 11 is arranged on the surface of the filling cylinder 1. There are multiple filling branch pipes 11, which are evenly distributed along the radial circumference of the filling cylinder 1 and are evenly distributed along the axial direction of the filling cylinder 1. The filling cylinder 1 is set as a hollow cylinder, and a flow channel for the foaming agent to flow through is set inside it. The filling branch pipe 11 is connected with the filling cylinder 1; the stirring shaft 2 is arranged in the filling cylinder 1, and a stirring paddle 21 is fixed to the bottom end of the stirring shaft 2; the coaxial reversing mechanism 3 is fixed on the top of the mixing reactor 6, and drives the filling cylinder 1 and the stirring shaft 2 to rotate simultaneously and in opposite directions through mechanical transmission; the filling pipe assembly 4 is used to connect the foaming agent storage tank 5 and the filling cylinder 1.

[0027] The arrangement of the filling cylinder 1 and the plurality of filling branches 11 enables the filling device to fill the foaming agent into the target area evenly and stably, saving the mixing time of filling and avoiding problems such as uneven expansion or hot and cold spots.

[0028] Among them Figure 3 As shown, the coaxial reversing mechanism 3 includes a first bevel gear 31, an outer cylinder 32, a second bevel gear 33, a support frame 34, a third bevel gear 35 and a motor 36; the first bevel gear 31 is fixedly sleeved on the outer cylinder 32, the second bevel gear 33 is fixedly sleeved on the stirring shaft 2, the third bevel gear 35 is meshed with the first bevel gear 31 and the second bevel gear 33 respectively, and the third bevel gear 35 is fixedly sleeved on the output shaft of the motor 36; the support frame 34 is used to support the stirring shaft 2 and the outer cylinder 32, and the support frame 34 and the motor 36 are both fixed on the top of the mixing reactor 6; a rotary joint 12 is provided at the top end of the filling cylinder 1, and the top end of the rotary joint 12 is connected to the bottom end of the outer cylinder 32.

[0029] The arrangement of the stirring shaft 2, the stirring paddle 21, the filling cylinder 1, the filling branch pipe 11 and the coaxial reversing mechanism 3 enables the filling device to efficiently mix the foaming agent with the mixture evenly, and the filling effect is greatly improved. The filling cylinder 1 and the filling branch pipe 11 are used for filling the foaming agent on the one hand, and play a stirring role on the other hand. The reverse stirring between them and the stirring paddle 21 fully disperses the foaming agent and promotes its activation and expansion; when the coaxial reversing mechanism 3 is used, the motor 36 is started, the motor 36 drives the third bevel gear 35 to rotate, the third bevel gear 35 drives the first bevel gear 31 and the second bevel gear 33 to rotate, the first bevel gear 31 drives the outer cylinder 32, the rotary joint 12 and the filling cylinder 1 to rotate, and the second bevel gear 33 drives the stirring shaft 2 to rotate in the opposite direction.

[0030] Among them Figure 4 As shown, the filling pipeline assembly 4 includes a discharge pipe 41, a feed pump 42, a feed pipe 43, a three-way connector 44, a suction pipe 45 and a flushing pipe 47; one end of the discharge pipe 41 is connected to the rotary joint 12, the other end of the discharge pipe 41 is connected to the outlet of the feed pump 42, the inlet of the feed pump 42 is connected to one end of the feed pipe 43, the other end of the feed pipe 43 is fixed with a three-way connector 44, and the other two ends of the three-way connector 44 are respectively fixed with a suction pipe 45 and a flushing pipe 47; the suction pipe 45 is inserted into the foaming agent storage tank 5, the suction pipe 45 is provided with a first valve 46, and the flushing pipe 47 is provided with a second valve 48.

[0031] When filling the foaming agent, start the feed pump 42, and the feed pump 42 extracts the foaming agent in the foaming agent storage tank 5. The foaming agent is transported through the feed pipe 43 and the discharge pipe 41 into the rotary joint 12, and then transported to the filling cylinder 1, and finally sprayed out from the multiple filling branches 11; when it is necessary to clean the filling cylinder 1 and the filling pipeline assembly 4, close the first valve 46, open the second valve 48, connect the flushing pipe 47 to the external water pipe, and flush the filling cylinder 1 and the filling pipeline assembly 4 with cleaning water.

[0032] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments and any equivalent replacement of some of the technical features therein, any modification, equivalent replacement, and improvement made are all within the protection scope of the present invention.

Claims

1. A polyurethane foaming agent filling device, comprising a filling cylinder (1), a stirring shaft (2), a coaxial reversing mechanism (3), a filling pipeline assembly (4) and a foaming agent storage tank (5), characterized in that: The filling cylinder (1) is vertically arranged at the inner center of the mixing reactor (6), and a filling branch pipe (11) is arranged on the surface of the filling cylinder (1); The stirring shaft (2) is arranged to penetrate the filling cylinder (1), and a stirring paddle (21) is fixed to the bottom end of the stirring shaft (2); The coaxial reversing mechanism (3) is fixed on the top of the mixing reactor (6), and drives the filling cylinder (1) and the stirring shaft (2) to rotate simultaneously and in opposite directions through mechanical transmission; The filling pipe assembly (4) is used to connect the foaming agent storage tank (5) and the filling cylinder (1).

2. A polyurethane foaming agent filling device according to claim 1, characterized in that: A plurality of filling branch pipes (11) are provided, which are evenly distributed along the radial circumference of the filling cylinder (1) and are evenly distributed along the axial direction of the filling cylinder (1).

3. A polyurethane foaming agent filling device according to claim 1, characterized in that: The filling cylinder (1) is configured as a hollow cylinder, a flow channel for the foaming agent to flow through is provided inside the filling cylinder, and the filling branch pipe (11) is connected to the filling cylinder (1).

4. A polyurethane foaming agent filling device according to claim 1, characterized in that: The coaxial reversing mechanism (3) comprises a first bevel gear (31), an outer cylinder (32), a second bevel gear (33), a support frame (34), a third bevel gear (35) and a motor (36); The first bevel gear (31) is fixedly sleeved on the outer cylinder (32), the second bevel gear (33) is fixedly sleeved on the stirring shaft (2), the third bevel gear (35) is meshed with the first bevel gear (31) and the second bevel gear (33) respectively, and the third bevel gear (35) is fixedly sleeved on the output shaft of the motor (36); The support frame (34) is used to support the stirring shaft (2) and the outer cylinder (32), and the support frame (34) and the motor (36) are both fixed on the top of the mixing reactor (6).

5. A polyurethane foaming agent filling device according to claim 4, characterized in that: A rotating joint (12) is provided at the top end of the filling cylinder (1), and the top end of the rotating joint (12) is connected to the bottom end of the outer cylinder (32).

6. A polyurethane foaming agent filling device according to claim 5, characterized in that: The filling pipeline assembly (4) comprises a discharge pipe (41), a feed pump (42), a feed pipe (43), a three-way connector (44), a suction pipe (45) and a flushing pipe (47); One end of the discharge pipe (41) is connected to the rotary joint (12), the other end of the discharge pipe (41) is connected to the outlet of the feed pump (42), the inlet of the feed pump (42) is connected to one end of the feed pipe (43), the other end of the feed pipe (43) is fixed with the three-way connector (44), and the other two ends of the three-way connector (44) are respectively fixed with the suction pipe (45) and the flushing pipe (47); The suction pipe (45) is inserted into the foaming agent storage tank (5), a first valve (46) is provided on the suction pipe (45), and a second valve (48) is provided on the flushing pipe (47).

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