Sealing device of dynamic mixer special for latex

Abstract

The utility model relates to the technical field of dynamic mixers, and discloses a sealing device of a dynamic mixer special for latex, which comprises a sealing shell which is arranged in an annular T shape, one end of the sealing shell is inserted in the dynamic mixer, the other end of the sealing shell is arranged outside the mixer, and the sealing shell is in sealing connection with the dynamic mixer; the sliding bearing is arranged in the middle of the inner cavity of the sealing shell, and a main shaft is inserted into the sliding bearing; the framework oil seals are arranged in the sealing shell and further located at the two ends of the sliding bearing. According to the utility model, the sealing shell is arranged to be annular T-shaped, so that the sealing shell can be conveniently kept in sealing connection with the dynamic mixer, and the main shaft can be conveniently inserted from the middle part of the sealing shell to stir mixed substances in the dynamic mixer; the framework oil seals are arranged in the sealing shell and located at the two ends of the sliding bearing, zero leakage of materials in the sealing shell can be guaranteed, it can also be guaranteed that mixed substances in the dynamic mixer cannot enter the sealing device, and the sealing effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dynamic mixers, in particular to a sealing device of a dynamic mixer dedicated to latex. Background Art

[0002] Plastic modification is a relatively broad concept. Whether it is to improve the original properties of resin or improve them through physical, chemical, mechanical and other means, it is called plastic modification. The application range of plastic modification is relatively wide. It can be said that all plastics can be improved by modification methods, such as density, hardness, precision, appearance, processability, transparency, mechanical properties, electromagnetic properties, chemical properties, corrosion resistance, aging resistance, wear resistance, thermal properties, flame retardancy, barrier properties and cost. Plastic modification is the most effective way to reduce costs and improve performance. Blending refers to mixing together. It is a physical method to evenly mix several materials to improve the performance of materials. In industry, using a rubber mixer to evenly mix different rubbers or rubber and plastics into rubber is a typical example. It is also possible to add certain special performance components to the polymer to change the properties of the polymer, such as electrical conductivity. An indispensable step in either blending or modification is the mixing of different melts. The equipment involved is the mixer and metering injection device. The mixing devices currently used in the chemical industry are static mixers or dynamic mixers. The main material metering device is generally a melt gear pump, and the auxiliary material metering device is generally a plunger pump or a melt gear pump.

[0003] However, as the use time of the sealing device of the dynamic mixer in the prior art increases, the mixed material often leaks, resulting in a loose seal, which causes the sealing device on the mixer to fail to play its essential role, affecting the normal operation of the dynamic mixer.

[0004] Therefore, there is an urgent need for a sealing device for a dynamic mixer dedicated to latex to solve the problem that the sealing device of the dynamic mixer in the prior art has a poor sealing effect and affects the normal operation of the dynamic mixer. Utility Model Content

[0005] In view of this, the utility model proposes a sealing device for a dynamic mixer dedicated to latex, aiming to solve the problem that the sealing device of the dynamic mixer in the prior art has poor sealing effect and affects the normal operation of the dynamic mixer.

[0006] The utility model provides a sealing device for a dynamic mixer dedicated to latex, comprising:

[0007] A sealing shell is arranged in an annular T shape, one end of the sealing shell is inserted into the dynamic mixer, the other end of the sealing shell is arranged outside the mixer, and the sealing shell is sealed and connected to the dynamic mixer;

[0008] A sliding bearing is arranged in the middle of the cavity in the sealing shell, a main shaft is inserted in the sliding bearing, the sliding bearing is rotatably connected to the main shaft, and two ends of the main shaft are respectively connected to the motor and the dynamic mixer;

[0009] A skeleton oil seal is arranged in the sealing shell, and the skeleton oil seal is also located at both ends of the sliding bearing.

[0010] Furthermore, the sealing device of the dynamic mixer dedicated to latex also includes:

[0011] The cooling part is sleeved on the outside of the sealing shell, and is used to reduce the temperature of the sealing shell and other components in the sealing shell.

[0012] Furthermore, the cooling unit comprises:

[0013] A housing, which is sleeved on the outside of the sealing shell;

[0014] A cooling cavity is arranged in the middle of the sealed shell, and the cooling cavity is used to contain a cooling medium.

[0015] Furthermore, the sealing device of the dynamic mixer dedicated to latex also includes:

[0016] A lubrication cavity is arranged between the main shaft and the sliding bearing, and the lubrication cavity is used for placing a lubrication medium.

[0017] Furthermore, the skeleton oil seal close to the dynamic mixer is provided with at least two layers, and the two skeleton oil seals are arranged side by side.

[0018] Furthermore, at least one layer of the skeleton oil seal away from the dynamic mixer is provided.

[0019] Furthermore, the sealing shell is concentric with the main shaft and the dynamic mixer respectively.

[0020] Furthermore, an end surface of one end of the sealing shell inserted into the dynamic mixer is flush with an end surface inside the dynamic mixer.

[0021] Compared with the prior art, the beneficial effect of the utility model lies in that the sealing shell is set to an annular T-shape, which is convenient for maintaining a sealed connection with the dynamic mixer and for inserting the main shaft from the middle of the sealing shell to stir the mixed material in the dynamic mixer; the skeleton oil seal is set in the sealing shell and located at both ends of the sliding bearing, which can ensure zero leakage of the material in the sealing shell and can also ensure that the mixed material in the dynamic mixer will not enter the sealing device, thereby improving the sealing effect and ensuring the normal operation of the dynamic mixer. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] By reading the detailed description of the preferred embodiment below, various other advantages and benefits will become clear to those of ordinary skill in the art. The accompanying drawings are only used for the purpose of illustrating the preferred embodiment and are not considered to be limiting of the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0023] Figure 1 A cross-sectional view of the sealing device of the dynamic mixer dedicated to latex provided by the embodiment of the utility model when in operation;

[0024] Figure 2 A cross-sectional view of a sealing device for a dynamic mixer dedicated to latex provided in an embodiment of the utility model;

[0025] Figure 3 A cross-sectional view of a mixer in a sealing device of a dynamic mixer dedicated to latex provided in an embodiment of the utility model.

[0026] In the figure: 100, sealing shell; 200, mixer; 300, sliding bearing; 400, motor; 500, skeleton oil seal; 600, cooling part; 610, housing; 620, cooling cavity; 700, lubrication cavity; 800, main shaft. DETAILED DESCRIPTION

[0027] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0028] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0029] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0030] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0031] See also Figure 1-3 As shown, this embodiment provides a sealing device for a dynamic mixer dedicated to latex, including a sealing shell 100, which is arranged in an annular T shape, one end of the sealing shell 100 is inserted in the dynamic mixer 200, and the other end of the sealing shell 100 is arranged outside the mixer 200, and the sealing shell 100 is sealed and connected to the dynamic mixer 200; a sliding bearing 300 is arranged in the middle of the cavity in the sealing shell 100, and a main shaft 800 is inserted in the sliding bearing 300, and the sliding bearing 300 is rotatably connected to the main shaft 800, and the two ends of the main shaft 800 are respectively connected to the motor 400 and the dynamic mixer 200; a skeleton oil seal 500 is arranged in the sealing shell 100, and the skeleton oil seal 500 is also located at both ends of the sliding bearing 300.

[0032] It can be understood that setting the sealing shell 100 to an annular T shape is convenient for maintaining a sealed connection with the dynamic mixer 200, and can also facilitate inserting the main shaft 800 from the middle of the sealing shell 100 to stir the mixed material in the dynamic mixer 200; setting the skeleton oil seal 500 in the sealing shell 100 and located at both ends of the sliding bearing 300 can ensure zero leakage of the material in the sealing shell 100, and can also ensure that the mixed material in the dynamic mixer 200 will not enter the sealing device, thereby improving the sealing effect and ensuring the normal operation of the dynamic mixer 200.

[0033] In a specific embodiment of the present application, the sealing device of the latex-specific dynamic mixer 200 also includes a cooling part 600, which is mounted on the outside of the sealing shell 100, and the cooling part 600 is used to reduce the temperature of the sealing shell 100 and other components in the sealing shell 100.

[0034] It is understandable that the cooling unit 600 is provided to improve the sealing performance. By cooling the sealing shell 100 through the cooling unit 600, the service life of the sealing material can be effectively extended, thereby ensuring the sealing performance of the mixer 200 during operation and preventing latex leakage. It is also possible to ensure stable operation of the equipment, timely reduce the internal temperature of the sealing shell 100, and ensure that the equipment operates stably within the optimal operating temperature range. The design of the cooling unit 600 can reduce the internal temperature of the equipment, reduce the wear and aging of the components, thereby extending the service life of the equipment, and can reduce the risk of operators contacting high-temperature components, thereby improving operational safety.

[0035] In a specific embodiment of the present application, the cooling unit 600 includes a shell 610, which is sleeved on the outside of the sealed shell 100; a cooling cavity 620, which is arranged in the middle of the sealed shell 100, and the cooling cavity 620 is used to contain a cooling medium.

[0036] It is understandable that a cooling cavity 620 is provided inside the shell 610. When the dynamic mixer 200 is working, compressed air or cooling water is introduced into the cooling cavity 620 to cool the sealing device to ensure the sealing effect of the sealing device, while reducing the temperature of the dynamic mixer 200 to ensure the normal operation of the dynamic mixer 200.

[0037] In a specific embodiment of the present application, the sealing device of the latex-specific dynamic mixer 200 also includes a lubrication cavity 700, which is arranged between the main shaft 800 and the sliding bearing 300, and the lubrication cavity 700 is used to place the lubrication medium.

[0038] It is understandable that a lubrication cavity 700 is provided between the main shaft 800 and the sliding bearing 300 to facilitate the passage of the lubrication medium into the lubrication cavity 700, thereby achieving lubrication of the main shaft 800 and the sliding bearing 300 and ensuring that the main shaft 800 drives the dynamic mixer 200 to stir, wherein the lubrication medium includes but is not limited to high temperature resistant grease.

[0039] In a specific embodiment of the present application, the skeleton oil seal 500 close to the dynamic mixer 200 is provided with at least two layers, and the two skeleton oil seals 500 are arranged side by side.

[0040] It can be understood that the skeleton oil seal 500 near the dynamic mixer 200 is set to at least two layers, which can ensure that the lubricating medium flows out of the sealing shell 100 to a great extent, and can also prevent the mixed latex from flowing out of the dynamic mixer 200, greatly improving the sealing effect of the sealing device.

[0041] In a specific embodiment of the present application, at least one layer of the skeleton oil seal 500 away from the dynamic mixer 200 is provided.

[0042] It can be understood that the skeleton oil seal 500 away from the dynamic mixer 200 is provided with at least one layer, which can ensure the outflow of the lubricating medium and the sealing effect of the sealing device. The lubrication cavity 700 is pre-added with high-temperature resistant grease, and the function of the skeleton oil seal 500 away from the dynamic mixer 200 can ensure the long-term operation of the equipment.

[0043] In a specific embodiment of the present application, the sealed housing 100 is concentric with the main shaft 800 and the dynamic mixer 200 , respectively.

[0044] It is understandable that the sealing shell 100, the main shaft 800 and the dynamic mixer 200 remain concentric, so that the movable tooth assembly and the stator tooth assembly in the dynamic mixer 200 can maintain normal operation, thereby allowing the mixed latex to be produced normally.

[0045] In a specific embodiment of the present application, the end surface of one end of the sealing shell 100 inserted into the dynamic mixer 200 is flush with the end surface inside the dynamic mixer 200 .

[0046] It can be understood that the end surface of the sealing shell 100 remains flush with the end surface of the dynamic mixer 200, and will not cause shearing to the mixed latex in contact, thereby ensuring the quality of the latex.

[0047] The working principle of the utility model is as follows: the sliding bearing 300 is installed on the main shaft 800, the sealing shell 100 is sleeved on the sliding bearing 300, the skeleton oil seal 500 is installed, the sealing shell 100 is sealed and connected with the dynamic mixer 200, the cooling medium is introduced into the cooling cavity 620, the lubricating medium is introduced into the lubricating cavity 700, the motor 400 is turned on, and the mixed latex is mixed.

[0048] In summary, the sealing shell 100 is set to an annular T shape, which is convenient for maintaining a sealed connection with the dynamic mixer 200, and can also facilitate inserting the main shaft 800 from the middle of the sealing shell 100 to stir the mixed material in the dynamic mixer 200; the skeleton oil seal 500 is set in the sealing shell 100 and located at both ends of the sliding bearing 300, which can ensure zero leakage of the material in the sealing shell 100 and can also ensure that the mixed material in the dynamic mixer 200 will not enter the sealing device, thereby improving the sealing effect and ensuring the normal operation of the dynamic mixer 200.

[0049] Furthermore, the cooling unit 600 is provided to improve the sealing performance. By cooling the sealing shell 100 through the cooling unit 600, the service life of the sealing material can be effectively extended, thereby ensuring the sealing performance of the mixer 200 during operation and preventing latex leakage. It can also ensure the stable operation of the equipment, timely reduce the internal temperature of the sealing shell 100, and ensure that the equipment operates stably within the optimal operating temperature range. The design of the cooling unit 600 can reduce the internal temperature of the equipment, reduce the wear and aging of the components, thereby extending the service life of the equipment, and can reduce the risk of operators contacting high-temperature components, thereby improving operational safety.

[0050] Furthermore, a cooling cavity 620 is provided inside the housing 610. When the dynamic mixer 200 is working, compressed air or cooling water is introduced into the cooling cavity 620 to cool the sealing device, thereby ensuring the sealing effect of the sealing device and reducing the temperature of the dynamic mixer 200 to ensure the normal operation of the dynamic mixer 200. A lubrication cavity 700 is provided between the main shaft 800 and the sliding bearing 300 to facilitate the introduction of the lubricating medium into the lubrication cavity 700, thereby achieving the lubrication of the main shaft 800 and the sliding bearing 300 and ensuring that the main shaft 800 drives the dynamic mixer 200 to stir, wherein the lubrication medium includes but is not limited to high temperature resistant grease.

[0051] Furthermore, the skeleton oil seal 500 near the dynamic mixer 200 is provided with at least two layers, which can ensure that the lubricating medium flows out of the sealing shell 100 to a great extent, and can also prevent the mixed latex from flowing out of the dynamic mixer 200, greatly improving the sealing effect of the sealing device. The skeleton oil seal 500 far away from the dynamic mixer 200 is provided with at least one layer, which can ensure the outflow of the lubricating medium and the sealing effect of the sealing device. The lubricating cavity 700 is pre-added with high temperature resistant grease, and the skeleton oil seal 500 far away from the dynamic mixer 200 can ensure the long-term operation of the equipment.

[0052] Furthermore, the sealing shell 100, the main shaft 800 and the dynamic mixer 200 are kept concentric, so that the moving tooth assembly and the stator tooth assembly in the dynamic mixer 200 can maintain normal operation, thereby allowing the mixed latex to be produced normally. The end surface of the sealing shell 100 is kept flush with the end surface of the dynamic mixer 200, and will not cause shearing to the mixed latex in contact, thereby ensuring the quality of the latex.

[0053] Those skilled in the art can understand that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A sealing device for a dynamic mixer dedicated to latex, characterized in that: include: A sealing shell is arranged in an annular T shape, one end of the sealing shell is inserted into the dynamic mixer, the other end of the sealing shell is arranged outside the mixer, and the sealing shell is sealed and connected to the dynamic mixer; A sliding bearing is arranged in the middle of the cavity in the sealing shell, a main shaft is inserted in the sliding bearing, the sliding bearing is rotatably connected to the main shaft, and two ends of the main shaft are respectively connected to the motor and the dynamic mixer; A skeleton oil seal is arranged in the sealing shell, and the skeleton oil seal is also located at both ends of the sliding bearing.

2. The sealing device for the dynamic mixer for latex according to claim 1, characterized in that: The sealing device of the dynamic mixer dedicated to latex also includes: The cooling part is sleeved on the outside of the sealing shell, and is used to reduce the temperature of the sealing shell and other components in the sealing shell.

3. The sealing device of the dynamic mixer for latex according to claim 2, characterized in that: The cooling unit comprises: A housing, which is sleeved on the outside of the sealing shell; A cooling cavity is arranged in the middle of the sealed shell, and the cooling cavity is used to contain a cooling medium.

4. The sealing device for the dynamic mixer for latex according to claim 1, characterized in that: The sealing device of the dynamic mixer dedicated to latex also includes: A lubrication cavity is arranged between the main shaft and the sliding bearing, and the lubrication cavity is used for placing a lubrication medium.

5. The sealing device for the dynamic mixer for latex according to claim 1, characterized in that: The skeleton oil seal close to the dynamic mixer is provided with at least two layers, and the two skeleton oil seals are arranged side by side.

6. The sealing device for the dynamic mixer for latex according to claim 1, characterized in that: The skeleton oil seal far away from the dynamic mixer is provided with at least one layer.

7. The sealing device for the dynamic mixer for latex according to claim 2, characterized in that: The sealing shell is concentric with the main shaft and the dynamic mixer respectively.

8. The sealing device for the dynamic mixer for latex according to claim 1, characterized in that: An end surface of one end of the sealing shell inserted into the dynamic mixer is flush with an end surface inside the dynamic mixer.

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