High-pressure foaming machine with static mixer

Abstract

The utility model discloses a high-pressure foaming machine with a static mixer, which relates to the technical field of high-pressure foaming machine equipment and comprises a foaming tank, a raw material through pipe fixedly mounted at the top of a shell of the foaming tank, an impurity filter screen fixedly mounted in the foaming tank, an impurity grinding unit arranged on the impurity filter screen and a stirring foaming unit arranged in the foaming tank. The stirring foaming unit comprises a rotating motor, an output shaft of the rotating motor is fixedly connected with one end of a rotating shaft, the other end of the rotating shaft penetrates through the foaming tank body into the tank, and the end, away from the rotating motor, of the rotating shaft is located below the impurity filtering net. According to the utility model, through the impurity grinding unit, some large-particle substances entering raw materials are extruded into small-particle substances, and the large-particle substances which are not extruded in the raw materials cannot penetrate through the impurity filtering net, so that the impurity grinding unit can repeatedly extrude the large-particle substances until the large-particle substances are completely extruded into the small-particle substances; and blockage during later foaming is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of high-pressure foaming machine equipment, in particular to a high-pressure foaming machine with a static mixer. Background Art

[0002] Polyurethane foam plastics are composed of two components of liquid raw materials, which are usually stored separately. During production, they are transported, metered, mixed and injected through a set of equipment to quickly complete the chemical reaction and condense into a solid foam. It has a wide range of application markets, such as heat preservation, sound insulation, shockproof and other uses. Among the existing similar chemical product machinery and equipment, as a low-pressure foaming machine, it is already a very mature equipment. However, on the process line, since its mixing is completed by high-speed stirring of the agitator in the mixing chamber of the mixing head, the residual mixture in the mixing chamber and on the agitator must be removed in time. Therefore, it is essential to have a process for cleaning the mixing head. It must be cleaned multiple times with a certain amount of organic solvent before it can be put into the next use.

[0003] Organic solvents contain volatile and harmful components, which seriously endanger the health of workers and pollute the workshop environment, and are prone to fire. Therefore, this type of low-pressure foaming machine is not popularized due to the indispensable cleaning process. At the same time, there will be impurities and precipitation in the liquid raw materials. When it enters the stirring device for stirring, impurities will also be generated in the generated foam, resulting in the produced foam not meeting the requirements. In addition, impurities will also clog the pump and pipeline. Utility Model Content

[0004] The utility model provides a high-pressure foaming machine with a static mixer to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A high-pressure foaming machine with a static mixer comprises a foaming tank, a raw material through pipe is fixedly installed on the top of the foaming tank shell, a filter net is fixedly installed in the foaming tank, a crushing unit is arranged on the filter net, a stirring foaming unit is arranged in the foaming tank, and a discharge port is fixedly installed at the bottom of the foaming tank, the discharge port penetrates the tank body of the foaming tank into the tank, and two fixed legs are arranged at the bottom of the foaming tank;

[0007] The stirring and foaming unit includes a rotating motor, the output shaft of the rotating motor is fixedly connected to one end of a rotating shaft, the other end of the rotating shaft penetrates the foaming tank body into the tank, the end of the rotating shaft away from the rotating motor is located below the filter screen, and a stirring and foaming rod is fixedly connected to the axis of the rotating shaft.

[0008] A further improvement of the technical solution of the utility model lies in that: a driving gear is provided on the rotating shaft, the driving gear is fixedly connected to the rotating shaft, the driving gear is meshed with gear one and gear two respectively, the gear one and gear two are fixedly connected with linkage screw rod one and linkage screw rod two respectively, the movable nuts on the linkage screw rod one and linkage screw rod two are fixedly connected with one end of an extension rod respectively, the other ends of the two extension rods are fixedly connected with an auxiliary foaming shaft respectively, the two auxiliary foaming shafts are vertically slidably installed at the bottom of the foaming tank, and one end of the two auxiliary foaming shafts in the foaming tank is below the filter screen.

[0009] The rotating shaft is driven to rotate by rotating the motor, so that the driving gear follows the rotating shaft, the driving gear starts to rotate, and gear one and gear two meshing with the driving gear start to rotate, and the two gears drive the two reciprocating screws to start rotating, so that the movable nuts on the two reciprocating screws start to move up and down, and then the two auxiliary foaming shafts start to move up and down in the tank, thereby increasing the foaming degree in the foaming tank, improving the foaming rate in the foaming tank, and improving the working efficiency of the entire device.

[0010] A further improvement of the technical solution of the utility model is that: a rolling protrusion is provided on one side of the two auxiliary foaming shafts close to the stirring and foaming rod, and a drag reduction hole is provided on the stirring and foaming rod.

[0011] The drag-reducing holes can effectively prevent the stirring and foaming rod from breaking due to excessive stirring speed with the raw materials when the output power of the rotating motor is too large. In addition, the drag-reducing holes can reduce the resistance received by the stirring and foaming rod during grinding and stirring, thereby increasing the rotation speed and improving the stirring and foaming efficiency of the equipment.

[0012] A further improvement of the technical solution of the utility model is that the grinding unit includes two stepper motors, the two stepper motors are fixedly mounted on two suspensions, the two suspensions are fixedly mounted on both sides of the foaming tank, and a positioning screw is respectively provided at the output end of the two stepper motors.

[0013] A further improvement of the technical solution of the utility model is that one end of the two positioning screws is rotationally connected to two stepping motors, and the other ends of the two positioning screws penetrate the foaming tank body into the tank, and one end of the two positioning screws away from the stepping motor is connected to a sliding plate.

[0014] The positioning screw is advanced by a stepper motor to drive the sliding plate forward, and the two sliding plates finally start to squeeze, so that some large particles in the raw material entering from the raw material pipe are squeezed into small particles, so that the stirring and foaming unit does not need to repeatedly grind and stir the large particles, thereby improving the stirring and foaming efficiency of the overall equipment, and the entire equipment is on the filter net, and large particles in the raw material that have not been squeezed cannot pass through the filter net, so that the grinding unit can repeatedly extrude the large particles until they are completely squeezed into small particles.

[0015] A further improvement of the technical solution of the utility model is that: the two positioning screws are located above the filter net, and the two sliding plates are both located on the filter net, and the filter net is made of a metal wedge-shaped filter net.

[0016] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0017] 1. The utility model provides a high-pressure foaming machine with a static mixer, which squeezes some large particles in the incoming raw materials into small particles through a grinding unit, so that the stirring and foaming unit does not need to repeatedly grind and stir the large particles, and the large particles in the raw materials that have not been squeezed cannot pass through the filter net, so that the grinding unit can repeatedly squeeze the large particles until they are completely squeezed into small particles, avoiding blockage during the later foaming.

[0018] 2. The utility model provides a high-pressure foaming machine with a static mixer, which avoids breakage by means of a stirring and foaming rod arranged in the stirring and foaming unit, so that the resistance received by the stirring and foaming rod during grinding and stirring becomes smaller, thereby improving the stirring and foaming efficiency of the equipment. At the same time, while increasing the stirring degree in the foaming tank, the inside of the foaming tank is also ground reciprocally. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the stirring and foaming unit of the utility model;

[0021] Figure 3 This is a schematic structural diagram of the grinding unit of the utility model;

[0022] Figure 4 It is a schematic diagram of the overall structure of the utility model.

[0023] In the figure: 1. foaming tank; 2. raw material through pipe; 6. discharge port; 401. stepping motor; 402. suspension; 403. positioning screw; 404. sliding plate; 501. rotating motor; 502. rotating shaft; 503. stirring foaming rod; 504. rolling protrusion; 505. drag reduction hole; 506. driving gear; 507. gear one; 508. gear two; 509. linkage screw one; 510. linkage screw two; 511. extension rod; 512. auxiliary foaming shaft. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 4 , the utility model provides a technical solution:

[0026] Embodiment 1:

[0027] A high-pressure foaming machine with a static mixer comprises a foaming tank 1, a raw material through pipe 2 is fixedly installed on the top of the shell of the foaming tank 1, a filter net is fixedly installed in the foaming tank 1, a crushing unit is arranged on the filter net, a stirring foaming unit is arranged in the foaming tank 1, and a discharge port 6 is fixedly installed at the bottom of the foaming tank 1, the discharge port 6 penetrates the tank body of the foaming tank 1 to the tank, and two fixed legs are arranged at the bottom of the foaming tank 1;

[0028] The stirring and foaming unit includes a rotating motor 501, the output shaft of the rotating motor 501 is fixedly connected to one end of a rotating shaft 502, the other end of the rotating shaft 502 passes through the tank body of the foaming tank 1 into the tank, the end of the rotating shaft 502 away from the rotating motor 501 is located below the filter screen, and a stirring and foaming rod 503 is fixedly connected to the axis of the rotating shaft 502.

[0029] A driving gear 506 is provided on the rotating shaft 502, and the driving gear 506 is fixedly connected to the rotating shaft 502. The driving gear 506 is meshed with gear 1 507 and gear 2 508 respectively. Gear 1 507 and gear 2 508 are fixedly connected with linkage screw rod 1 509 and linkage screw rod 2 510 respectively. The movable nuts on the linkage screw rod 1 509 and linkage screw rod 2 510 are respectively fixedly connected to one end of an extension rod 511, and the other ends of the two extension rods 511 are respectively fixedly connected with an auxiliary foaming shaft 512. The two auxiliary foaming shafts 512 are vertically slidably installed at the bottom of the foaming tank 1, and one end of the two auxiliary foaming shafts 512 in the foaming tank 1 is below the filter screen.

[0030] The rotating shaft 502 is driven to rotate by rotating the motor 501, so that the driving gear follows the rotating shaft 502, the driving gear 506 starts to rotate, and the gear 1 507 and the gear 2 508 meshing with the driving gear 506 start to rotate, and the two gears drive the two reciprocating screws to start rotating, so that the movable nuts on the two reciprocating screws start to move up and down, and then the two auxiliary foaming shafts 512 start to move up and down in the tank, thereby increasing the foaming degree in the foaming tank 1 and improving the foaming rate in the foaming tank 1, so that the working efficiency of the entire device is improved.

[0031] Embodiment 2:

[0032] Based on Example 1:

[0033] The two auxiliary foaming shafts 512 are provided with a rolling protrusion 504 on one side close to the stirring and foaming rod 503 , and the stirring and foaming rod 503 is provided with a drag reduction hole 505 .

[0034] The drag reducing holes 505 can effectively prevent the stirring and foaming rod 503 from breaking due to excessive stirring speed with the raw materials when the output power of the rotating motor 501 is too large. In addition, the drag reducing holes can reduce the resistance received by the stirring and foaming rod 503 during grinding and stirring, thereby increasing the rotation speed and improving the stirring and foaming efficiency of the equipment.

[0035] Embodiment three:

[0036] On the basis of the first embodiment: the grinding unit includes two stepper motors 401, the two stepper motors 401 are respectively fixedly mounted on two suspensions 402, and the two suspensions 402 are respectively fixedly mounted on both sides of the foaming tank 1, wherein the output ends of the two stepper motors 401 are respectively provided with a positioning screw 403.

[0037] One end of the two positioning screws 403 is rotationally connected to the two stepping motors 401 , and the other ends of the two positioning screws 403 penetrate the foaming tank 1 into the tank, and one end of the two positioning screws 403 away from the stepping motor 401 is connected to a sliding plate 404 .

[0038] The positioning screw 403 is moved forward by the stepper motor 401 to drive the sliding plate 404 to move forward, and the two sliding plates 404 finally start to squeeze, so that some large particles in the raw material entering from the raw material pipe 2 are squeezed into small particles, so that the stirring and foaming unit does not need to repeatedly grind and stir the large particles, thereby improving the stirring and foaming efficiency of the overall equipment, and the entire equipment is on the filter net, and the large particles in the raw material that have not been squeezed cannot pass through the filter net, so that the grinding unit can repeatedly squeeze the large particles until they are completely squeezed into small particles.

[0039] The two positioning screws 403 are located above the filter net, and the two sliding plates 404 are both located on the filter net, and the filter net is made of a metal wedge-shaped filter net.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A high-pressure foaming machine with a static mixer, comprising a foaming tank (1), characterized in that: A raw material through pipe (2) is fixedly installed on the top of the outer shell of the foaming tank (1), a filter net is fixedly installed in the foaming tank (1), a crushing unit is arranged on the filter net, a stirring and foaming unit is arranged in the foaming tank (1), and a discharge port (6) is fixedly installed at the bottom of the foaming tank (1), the discharge port (6) penetrates the tank body of the foaming tank (1) into the tank, and two fixing legs are arranged at the bottom of the foaming tank (1); The stirring and foaming unit comprises a rotating motor (501), the output shaft of the rotating motor (501) is fixedly connected to one end of a rotating shaft (502), the other end of the rotating shaft (502) passes through the tank body of the foaming tank (1) into the tank, the end of the rotating shaft (502) away from the rotating motor (501) is located below the filter screen, and a stirring and foaming rod (503) is fixedly connected to the axis of the rotating shaft (502).

2. A high pressure foaming machine with a static mixer according to claim 1, characterized in that: A driving gear (506) is provided on the rotating shaft (502), and the driving gear (506) is fixedly connected to the rotating shaft (502). The driving gear (506) is meshed with gear 1 (507) and gear 2 (508) respectively. Gear 1 (507) and gear 2 (508) are fixedly connected with linkage screw rod 1 (509) and linkage screw rod 2 (510) respectively. The movable nuts on the linkage screw rod 1 (509) and linkage screw rod 2 (510) are fixedly connected to one end of an extension rod (511) respectively. The other ends of the two extension rods (511) are fixedly connected to an auxiliary foaming shaft (512) respectively. The two auxiliary foaming shafts (512) are vertically slidably installed at the bottom of the foaming tank (1), and one end of the two auxiliary foaming shafts (512) located in the foaming tank (1) is located below the filter screen.

3. A high pressure foaming machine with a static mixer according to claim 2, characterized in that: The two auxiliary foaming shafts (512) are each provided with a rolling protrusion (504) on one side close to the stirring and foaming rod (503), and the stirring and foaming rod (503) is each provided with a drag reduction hole (505).

4. The high pressure foaming machine with a static mixer according to claim 1, characterized in that: The grinding unit comprises two stepper motors (401), the two stepper motors (401) are respectively fixedly mounted on two suspensions (402), the two suspensions (402) are respectively fixedly mounted on two sides of the foaming tank (1), and the output ends of the two stepper motors (401) are respectively provided with a positioning screw (403).

5. A high pressure foaming machine with a static mixer according to claim 4, characterized in that: One end of the two positioning screws (403) is rotationally connected to the two stepping motors (401), and the other ends of the two positioning screws (403) penetrate the tank body of the foaming tank (1) into the tank, and one end of the two positioning screws (403) away from the stepping motor (401) is connected to a sliding plate (404).

6. A high pressure foaming machine with a static mixer according to claim 5, characterized in that: The two positioning screws (403) are located above the filter screen, and the two sliding plates (404) are both located on the filter screen. The filter screen is made of a metal wedge-shaped filter screen.

Images