High-pressure foaming device for thermal insulation material

Abstract

The utility model relates to the technical field of high-pressure foaming devices, in particular to a high-pressure foaming device for a thermal insulation material, which comprises a foaming tank, two feeding pipes, a foaming device and a foaming device, the adjusting mechanism is arranged at the upper end of the surface of the foaming tank; wherein the adjusting mechanism comprises two mounting blocks which are fixedly connected to the upper end of the surface of the foaming tank, and a material control hole is formed in the inner wall of the feeding pipe; according to the device, stable locking of the fixing frame is achieved through the magnet, the iron block, the through hole and the mounting block, it is guaranteed that the sealing plug is stably limited in the feeding pipe, and compared with an existing mode that the sealing plug is limited in the feeding pipe through an extension spring and moves in the feeding pipe under material impact, it is guaranteed that the sealing plug cannot move in the feeding pipe under material flow impact; and the sealing plug is still stably positioned at the corresponding position of the feeding pipe, so that the stable adjustment of the feeding flow in the foaming tank is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of high-pressure foaming devices, in particular to a high-pressure foaming device for heat-insulating materials. Background Art

[0002] High-pressure foaming equipment for thermal insulation materials is used to produce polyurethane foam, widely used in industries such as construction, refrigeration, and packaging. It uses high pressure to mix two reactive liquids, typically isocyanate and polyol, and injects them into a mold or cavity. The mixture rapidly foams and solidifies within a short period of time, forming a foam material with excellent thermal insulation properties.

[0003] After searching, the Chinese patent "A foaming device for producing thermal insulation materials" authorization announcement number "CN221659903U" realizes the adjustment of the feed flow of the two raw materials through a feed pipe, a tension spring, a movable frame, a T-shaped sliding rod, a limit groove, a conduction seat, a sealing plug and a movable thin rod, and makes corresponding adjustments according to the reaction conditions inside the foaming tank to avoid excessive reaction caused by feeding too quickly or insufficient reaction caused by feeding too slowly, thereby promoting more full and comprehensive reaction consumption of the raw materials.

[0004] In the above application, two groups of raw materials flow in the feed pipe into the foaming tank. Since the tension spring is elastic, the raw materials will impact the sealing plug during the flow, which can easily cause the tension spring to shrink, resulting in displacement of the sealing plug in the feed pipe, thereby affecting the regulation of the feed flow rate.

[0005] Therefore, a high-pressure foaming device for thermal insulation materials is proposed to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a high-pressure foaming device for thermal insulation materials in order to solve the above problems, thereby improving the problem that the raw materials impact the sealing plug during flow, which easily causes the tension spring to shrink and leads to displacement of the sealing plug in the feed pipe.

[0007] The utility model achieves the above-mentioned purpose through the following technical scheme: a high-pressure foaming device for thermal insulation material, comprising: a foaming tank, the top of which is connected to two feeding pipes; an adjusting mechanism, which is arranged on the upper surface of the foaming tank; wherein the adjusting mechanism comprises two mounting blocks fixedly connected to the upper surface of the foaming tank, a material control hole is provided on the inner wall of the mounting block, a fixing frame is slidably connected to the inner wall of the mounting block, a sealing plug is fixedly connected to the bottom end of the fixing frame, a plurality of through holes are provided on the lower end of the surface of the fixing frame, an iron block is slidably connected to the inner wall of the mounting block, the surface of the iron block is clamped to the inner wall of one of the through holes, an attractive magnet is fixedly connected to one side of the inner wall of the mounting block, and the surface of the attractive magnet is magnetically attracted to the surface of the iron block. By means of the magnet, iron block, through hole and mounting block, the fixing frame is firmly locked, ensuring that the sealing plug is stably limited in the feed pipe. Compared with the existing method of limiting the sealing plug in the feed pipe by stretching the spring, the sealing plug is displaced in the feed pipe under the impact of the material. This method ensures that under the impact of logistics, the sealing plug is still stably located in the corresponding position of the feed pipe, thereby ensuring the stable adjustment of the feed flow in the foaming tank.

[0008] Preferably, the lower end of the surface of the fixing bracket is provided with a scale mark, and an acrylic finger block is fixedly connected to the inner side of the mounting block. The scale mark and the finger block enable the observation of the moving distance of the fixing bracket, facilitating the precise adjustment of the feed rate of the foaming tank, thereby improving the efficiency of thermal insulation material production.

[0009] Preferably, the bottom of the fixing frame is fixedly connected to a limit block. The limit block limits the upward movement of the fixing frame, ensuring that when the top of the limit block contacts the bottom of the mounting block, the sealing plug accurately blocks the inner wall of the material control hole, thereby preventing the raw material from flowing into the foaming tank and sealing the inner wall of the feed pipe.

[0010] Preferably, two blocks are fixedly connected to the surface of the foaming tank. The blocks and the limit block limit the downward movement of the fixed frame, thereby achieving the maximum discharge capacity of the feed pipe and ensuring that the raw materials flow quickly into the foaming tank through the feed pipe.

[0011] Preferably, the upper end of the surface of the feed pipe is funnel-shaped, and the inner wall of the control hole is concave and truncated into a cone shape.

[0012] Preferably, the sealing plug is formed as a whole with a conical upper end and a frustum-shaped lower end. Compared with the frustum-shaped sealing plugs of the prior art, the conical upper end of the sealing plug of this embodiment makes the upper end of the sealing plug surface smoother, reduces the impact force of the raw material on the sealing plug, and prevents the raw material from being retained at the upper end of the sealing plug, so that the sealing plug is stably located at the corresponding position in the material control hole.

[0013] Preferably, the top of the iron block is fixedly connected with an anti-falling block, and the surface of the anti-falling block is slidably connected to the upper end of the inner wall of the mounting block. The anti-falling block limits the movement of the iron block and prevents the iron block from falling out of the mounting block.

[0014] Preferably, one side of the surface of the iron block is in a "V" shape.

[0015] The beneficial effects of the utility model are:

[0016] 1. Through the magnet, iron block, through-hole and mounting block, the fixing frame is firmly locked, ensuring that the sealing plug is stably limited in the feed pipe. Compared with the existing method of limiting the sealing plug in the feed pipe by stretching the spring, which causes the sealing plug to move in the feed pipe under the impact of the material, this method ensures that the sealing plug remains stably in the corresponding position of the feed pipe under the impact of logistics, thereby ensuring the stable regulation of the feed flow in the foaming tank;

[0017] 2. Through the scale lines and the finger block, the moving distance of the fixed frame can be observed, which is convenient for accurately adjusting the speed of the feed flow of the foaming tank and improving the efficiency of the insulation material production. Compared with the existing sealing plug in the shape of a cone, the upper end of the sealing plug surface of this method is conical, which makes the upper end of the sealing plug surface smoother, reduces the impact force of the raw materials on the sealing plug and avoids the raw materials from being retained at the upper end of the sealing plug, so that the sealing plug is stably located at the corresponding position in the material control hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a cross-sectional view of the feed pipe of the present utility model;

[0020] Figure 3 for Figure 2 A magnified view of middle A;

[0021] Figure 4 This is an exploded view of the feed pipe and sealing plug of the utility model.

[0022] In the figure: 1. Foaming tank; 2. Feeding pipe; 3. Adjusting mechanism; 31. Mounting block; 32. Fixing bracket; 33. Sealing plug; 34. Iron block; 35. Magnet; 36. Through hole; 37. Finger block; 38. Limiting block; 39. Stop block; 310. Anti-slip block; 311. Material control hole. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] When implementing: Figure 1-4 As shown, a high-pressure foaming device for thermal insulation material comprises: a foaming tank 1, the top of the foaming tank 1 is connected to two feeding pipes 2; an adjusting mechanism 3, the adjusting mechanism 3 is arranged on the upper surface of the foaming tank 1; wherein, the adjusting mechanism 3 comprises two mounting blocks 31 fixedly connected to the upper surface of the foaming tank 1, the inner wall of the feeding pipe 2 is provided with a material control hole 311, the inner wall of the mounting block 31 is slidably connected to a fixing frame 32, the bottom end of the fixing frame 32 is fixedly connected to a sealing plug 33, a plurality of through holes 36 are provided on the lower end of the surface of the fixing frame 32, the inner wall of the mounting block 31 is slidably connected to an iron block 34, the surface of the iron block 34 is clamped to the inner wall of one of the through holes 36, and one side of the inner wall of the mounting block 31 is fixedly connected to an attractive magnet 35, the surface of the attractive magnet 35 is magnetically attracted to the surface of the iron block 34, and one side of the surface of the iron block 34 is in a "V" shape.

[0025] The top of the foaming tank 1 is fixedly connected to a servo motor, the inner wall of the foaming tank 1 is rotatably connected to a stirring shaft, the output shaft of the servo motor is fixedly connected to the top of the stirring shaft, and the bottom of the foaming tank 1 is fixedly connected to a high-pressure pump.

[0026] In the production of polyurethane foam, pull the iron block 34 away from one of the through holes 36, release the lock of the fixing frame 32 in the mounting block 31, and then pull the fixing frame 32 down to a suitable position, so that the sealing plug 33 moves down to a suitable position in the material control hole 311, and push the iron block 34, the iron block 34 with a "V" shape on one side of the surface, and the iron block 34 is accurately and quickly inserted into the other through hole 36, so that the fixing frame 32 is firmly locked in the mounting block 31. At this time, the isocyanate component raw material and the polyol component raw material in the polyurethane raw material are poured into the two feeding pipes 2 respectively, and the raw materials pass through the aperture opened by the material control hole 311, and are evenly distributed. The polyurethane raw materials flow into the foaming tank 1, and the servo motor is manually turned on. The output shaft of the servo motor rotates to drive the stirring shaft to rotate. The stirring shaft rotates to stir the polyurethane raw materials in the foaming tank 1 to maintain the uniformity and temperature stability of the raw materials. The high-pressure pump is manually turned on. The high-pressure pump extracts the two component raw materials in the foaming tank 1 and transports them to the high-pressure mixing head. The two components are fully mixed at extremely high pressure in the mixing head. The mixed materials are injected into the mold or cavity through a spray gun or syringe. The mixed materials react chemically in the mold or cavity to produce a large amount of gas, usually carbon dioxide, which causes the materials to expand and solidify into foam to form a thermal insulation material.

[0027] like Figure 3 As shown, a scale line is provided on the lower end of the surface of the fixing frame 32, and a finger block 37 is fixedly connected to the inner side of the mounting block 31, and the finger block 37 is an acrylic component.

[0028] like Figure 2-3 As shown, a limiting block 38 is fixedly connected to the bottom of the fixing frame 32 , and two stoppers 39 are fixedly connected to the surface of the foaming tank 1 .

[0029] When the fastest feeding speed is required, the fixing frame 32 is pulled downward so that the bottom of the limit block 38 abuts against the top of the stop block 39, and the sealing plug 33 moves downward away from the feeding pipe 2. At this time, the feeding speed in the foaming tank 1 is the fastest.

[0030] like Figure 4 As shown, the upper end of the feed pipe 2 is funnel-shaped, the inner wall of the control hole 311 is concave and truncated, and the sealing plug 33 is generally conical at the upper end and truncated at the lower end. The sealing plug 33 is a stainless steel component.

[0031] like Figure 3 As shown, the top of the iron block 34 is fixedly connected to an anti-slip block 310 , and the surface of the anti-slip block 310 is slidably connected to the upper end of the inner wall of the mounting block 31 .

[0032] When the present invention is in use, the iron block 34 is pulled away from one of the through holes 36, and the lock of the fixing frame 32 in the mounting block 31 is released. At this time, the fixing frame 32 is pulled downward. The downward movement distance of the fixing frame 32 can be clearly observed through the finger block 37 and the scale line of the acrylic component, so that the sealing plug 33 is moved down to a suitable position in the material control hole 311. The iron block 34 with a "V" shape on one side of the surface is pushed. The iron block 34 is accurately and quickly inserted into the other through hole 36, so that the fixing frame 32 is firmly locked in the mounting block 31, and the isocyanate component raw material and the polyol component raw material are respectively poured into the two feeding pipes 2. The raw materials flow into the foaming tank 1 evenly through the aperture opened by the material control hole 311, so that the stirring shaft in the foaming tank 1 stirs the raw materials.

[0033] It should be noted that the servo motor, stirring shaft, high-pressure pump, foaming tank 1, iron block 34 and suction magnet 35 in the above description are all relatively mature devices in existing technology applications. The specific models can be selected according to actual needs. At the same time, the servo motor, stirring shaft and high-pressure pump can be powered by a built-in power supply or by AC power. The specific power supply method is selected according to the situation and will not be elaborated here.

[0034] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A high-pressure foaming device for thermal insulation materials, characterized in that: include: A foaming tank (1), wherein the top end of the foaming tank (1) is connected to two feed pipes (2); An adjusting mechanism (3), the adjusting mechanism (3) being arranged on the upper surface of the foaming tank (1); The regulating mechanism (3) comprises two mounting blocks (31) fixedly connected to the upper end of the surface of the foaming tank (1); the inner wall of the feeding pipe (2) is provided with a material control hole (311); the inner wall of the mounting block (31) is slidably connected to a fixing frame (32); the bottom end of the fixing frame (32) is fixedly connected to a sealing plug (33); the lower end of the surface of the fixing frame (32) is provided with a plurality of through holes (36); the inner wall of the mounting block (31) is slidably connected to an iron block (34); the surface of the iron block (34) is clamped to the inner wall of one of the through holes (36); one side of the inner wall of the mounting block (31) is fixedly connected to an attracting magnet (35); the surface of the attracting magnet (35) is magnetically attracted to the surface of the iron block (34).

2. A high-pressure foaming device for thermal insulation materials according to claim 1, characterized in that: The lower end of the surface of the fixing frame (32) is provided with a scale line, and the inner side of the mounting block (31) is fixedly connected with a finger block (37), and the finger block (37) is an acrylic component.

3. The high-pressure foaming device for thermal insulation materials according to claim 1, characterized in that: The bottom of the fixing frame (32) is fixedly connected to a limiting block (38).

4. The high-pressure foaming device for thermal insulation materials according to claim 1, characterized in that: Two stoppers (39) are fixedly connected to the surface of the foaming tank (1).

5. The high-pressure foaming device for thermal insulation materials according to claim 1, characterized in that: The upper end of the surface of the feed pipe (2) is funnel-shaped, and the inner wall of the material control hole (311) is concave and truncated.

6. The high-pressure foaming device for thermal insulation materials according to claim 1, characterized in that: The sealing plug (33) is generally conical at the upper end and frustum-shaped at the lower end.

7. The high-pressure foaming device for thermal insulation materials according to claim 1, characterized in that: The top of the iron block (34) is fixedly connected with an anti-slip block (310), and the surface of the anti-slip block (310) is slidably connected to the upper end of the inner wall of the mounting block (31).

8. The high-pressure foaming device for thermal insulation materials according to claim 1, characterized in that: One side of the surface of the iron block (34) is in a "V" shape.

Images