Discharge gate seal structure and blender

Abstract

The application relates to a discharge door sealing structure and a mixer, the discharge door sealing structure is used for sealing the gap between a discharge door and a discharge hole of the mixer, and the discharge door sealing structure comprises a sealing ring and a first fixing component, the sealing ring is located on the mixer and extends along the circumference of the discharge hole, the first fixing component is used for fixing the sealing ring on the mixer, a plurality of first fixing components are uniformly arranged in the extension direction of the length of the sealing ring, so that the sealing ring bears uniform compression force, local insufficient pressure is avoided, the sealing ring is uniformly pressed all around when the discharge door is closed, the sealing ring is more closely attached, the compression force between each first fixing component and the sealing ring can be independently adjusted, slight deformation of the discharge door or the discharge hole caused by long-term use can be compensated, sealing stability is maintained, one end of each first fixing component is fixed on the mixer, the other end of each first fixing component extrudes the sealing ring, the sealing ring is installed through a plurality of independent first fixing components, the sealing ring can be replaced only by loosening the corresponding component, the sealing ring is more easily disassembled and there is no problem of cleaning residual glue.

Description

Technical Field

[0001] This application relates to the field of material mixing equipment technology, and in particular to a discharge gate sealing structure and a mixer. Background Technology

[0002] Currently, the main method for sealing the discharge gate of a mixer is to directly install a rubber sealing strip on the gate body. This structure compresses the sealing strip when the gate closes, creating a seal between the strip and the gate frame to prevent material leakage. However, this method is inconvenient for disassembling and installing the sealing strip, and the sealing surface is relatively small. Prolonged use, wear, and aging of the rubber strip can all lead to a deterioration in the sealing effect, resulting in material leakage from the mixer and causing the finished product to fail inspection. Utility Model Content

[0003] This application provides a sealing structure for a discharge gate, which can solve at least one of the above-mentioned technical problems.

[0004] This application provides a discharge gate sealing structure for sealing the gap between the discharge gate and the discharge hole of a mixer, comprising: a sealing ring located on the mixer and extending circumferentially along the discharge hole; a first fixing member for fixing the sealing ring to the mixer, wherein multiple first fixing members are provided, the multiple first fixing members are provided in the extension direction of the length of the sealing ring, one end of each first fixing member is fixed to the mixer, and the other end compresses the sealing ring; and an extension plate provided circumferentially along the discharge gate.

[0005] In some optional embodiments, the sealing ring includes an elastic sealing ring and a support skeleton, wherein the elastic sealing ring has a through hole inside, and the support skeleton fills the through hole of the elastic sealing ring to support the elastic sealing ring.

[0006] In some alternative embodiments, the support frame includes a linear frame that extends circumferentially along the discharge port and is capable of conforming to the mixer.

[0007] In some alternative embodiments, the support frame includes an arc-shaped frame that extends circumferentially along the discharge port and is capable of conforming to the mixer.

[0008] In some optional embodiments, the support frame includes a linear frame and an arc-shaped frame, which are arranged to form a structure extending circumferentially around the discharge hole, and the linear frame and the arc-shaped frame are respectively attached to the mixer.

[0009] In some alternative embodiments, the unloading gate sealing structure further includes a patch located at the contact surface between the first fixing component and the sealing ring.

[0010] In some optional embodiments, the first fixing component includes a first fixing part, a positioning part, and a first locking element. The first fixing part covers a portion of the circumferential area of ​​the sealing ring. The positioning part connects the first fixing part and the discharge hole. A plurality of first locking elements are arranged sequentially along the circumferential direction of the sealing ring. Each first locking element passes through the first fixing part and is pressed against the patch.

[0011] In some optional embodiments, a second fixing component is further included for fixing the sealing ring to the mixer. The second fixing component includes a second fixing part and a second locking element. The second fixing part is provided with a groove, and the sealing ring is disposed in the groove. The opening end of the groove faces and is fixed to the discharge hole. The second locking element passes through the second fixing part and is pressed against the discharge hole.

[0012] In some alternative embodiments, an extension plate is also included, which is disposed circumferentially along the discharge gate.

[0013] On the other hand, this application also provides a mixer including the discharge gate sealing structure mentioned in any of the above.

[0014] This application has at least the following technical advantages over the prior art:

[0015] This application provides a discharge gate sealing structure for sealing the gap between the discharge gate and the discharge hole of a mixer. The discharge gate sealing structure includes a sealing ring and first fixing components. The sealing ring is located on the mixer and extends circumferentially along the discharge hole. Multiple first fixing components are provided, evenly distributed along the length of the sealing ring to ensure uniform pressure on the sealing ring, preventing insufficient local pressure and ensuring uniform pressure on the entire circumference of the sealing ring when the discharge gate is closed, resulting in a tighter fit. The clamping force between each first fixing component and the sealing ring can be independently adjusted to compensate for slight deformation of the discharge gate or discharge hole due to long-term use, maintaining sealing stability. One end of each first fixing component is fixed to the mixer, and the other end compresses the sealing ring. The sealing ring is installed through multiple independent first fixing components; when damaged, the sealing ring can be replaced simply by loosening the corresponding component, making disassembly easier and eliminating the problem of residual adhesive cleaning. By increasing the number of fixing components or increasing the clamping force, the sealing requirements of high-pressure mixing can be met. The extension plate is set along the circumference of the unloading gate. The increased contact area of ​​the extension plate increases the contact area between the unloading gate and the sealing ring, making the contact surface between the sealing ring and the unloading gate larger, improving the sealing effect between the unloading gate and the sealing ring, expanding the sealing protection range, reducing the pressure per unit area, and reducing the risk of local leakage. Attached Figure Description

[0016] Figure 1 This is a front view of the unloading gate sealing structure provided in the embodiments of this application;

[0017] Figure 2 yes Figure 1 A schematic diagram of the cross-sectional structure at point AA is provided in the embodiment;

[0018] Figure 3 yes Figure 2 An enlarged structural diagram of point A in the embodiment is provided;

[0019] Figure 4 yes Figure 1 A bottom view of the unloading gate sealing structure provided in this embodiment;

[0020] Figure 5 yes Figure 1 A three-dimensional structural diagram of the unloading gate sealing structure of the embodiment is provided;

[0021] Figure 6 This is a schematic diagram of the structure of the first fixing component and the second fixing component in one embodiment;

[0022] Figure 7 This is a schematic diagram of the structure of the first fixing component provided in another embodiment.

[0023] Explanation of reference numerals in the attached drawings: 1-Sealing ring; 11-Elastic sealing ring; 12-Supporting frame; 121-Linear frame; 122-Arc-shaped frame; 2-First fixing component; 21-First fixing part; 22-Positioning part; 23-First locking element; 3-Patch; 4-Second fixing component; 41-Second fixing part; 42-Second locking element; 5-Extension plate; a-Discharge gate; b-Discharge hole. Detailed Implementation

[0024] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0026] Currently, the main method for sealing the discharge gate of a mixer is to directly install a rubber sealing strip on the gate body. This structure compresses the sealing strip when the gate closes, creating a seal between the strip and the gate frame to prevent material leakage. However, this method is inconvenient for disassembling and installing the sealing strip, and the sealing surface is relatively small. Prolonged use, wear, and aging of the rubber strip can all lead to a deterioration in the sealing effect, resulting in material leakage from the mixer and causing the finished product to fail inspection.

[0027] To address the aforementioned technical problems, this application provides a discharge gate sealing structure capable of solving at least one of the above technical problems. The following description, in conjunction with the accompanying drawings, illustrates this solution. Figures 1 to 7 A detailed explanation will be provided.

[0028] This application provides a discharge gate sealing structure for sealing the gap between the discharge gate a and the discharge hole b of a mixer, comprising: a sealing ring 1 located on the mixer and extending circumferentially along the discharge hole b; a first fixing member 2 for fixing the sealing ring 1 to the mixer, wherein multiple first fixing members 2 are provided and evenly arranged along the extension direction of the length of the sealing ring 1, one end of each first fixing member 2 is fixed to the mixer and the other end compresses the sealing ring 1; and an extension plate 5 arranged circumferentially along the discharge gate a.

[0029] Specifically, the unloading gate sealing structure includes a sealing ring 1 and a first fixing component 2. The sealing ring 1 is located in the mixer and extends circumferentially along the unloading hole b. The first fixing component 2 is used to fix the sealing ring 1 to the mixer. Multiple first fixing components 2 are provided, and they are evenly arranged along the extension direction of the sealing ring 1, so that the sealing ring 1 is subjected to uniform clamping force, avoiding insufficient local pressure, and ensuring that the sealing ring 1 is evenly compressed around its entire circumference when the unloading gate a is closed, resulting in a tighter fit. The clamping force between each first fixing component 2 and the sealing ring 1 can be adjusted independently to compensate for slight deformation of the unloading gate a or the unloading hole b due to long-term use, maintaining sealing stability. One end of each first fixing component 2 is fixed to the mixer, and the other end compresses the sealing ring. The sealing ring 1 is installed through multiple independent first fixing components 2. When damaged, the sealing ring 1 can be replaced simply by loosening the corresponding first fixing component 2, making disassembly easier and eliminating the problem of residual glue cleaning. The sealing requirements of high-pressure mixing can be met by increasing the number of first fixing components 2 or increasing the clamping force.

[0030] Furthermore, the extension plate 5 is arranged circumferentially along the unloading gate a. The increased contact area through the extension plate 5 increases the contact area between the unloading gate a and the sealing ring 1, resulting in a larger contact surface between the sealing ring 1 and the unloading gate a. This improves the sealing effect between the unloading gate a and the sealing ring 1, expands the sealing protection range, reduces the pressure per unit area, and reduces the risk of localized leakage. The extension plate 5 can suppress the micro-vibration of the unloading gate a, reducing the risk of seal interface separation caused by vibration. The increased contact area allows the sealing ring 1 to compensate for thermal expansion and contraction through a wider range of elastic deformation during temperature changes, preventing seal failure.

[0031] Furthermore, the mixer includes a mixing drum, which has a discharge hole b and a discharge gate a. The discharge gate a can effectively seal the discharge hole b through the discharge gate sealing structure provided in this application.

[0032] In some optional embodiments, the sealing ring 1 includes an elastic sealing ring 11 and a support frame 12. The elastic sealing ring 11 has a through hole inside, and the support frame 12 fills the through hole of the elastic sealing ring 11 to support the elastic sealing ring 11.

[0033] Specifically, the support frame 12 fills the through-hole of the elastic sealing ring 11 to support it, providing rigid support and significantly improving the overall structural strength of the sealing ring 1. Under high pressure, high load, or frequent extrusion conditions, it effectively prevents the elastic sealing ring 11 from failing due to plastic deformation, extending its service life and enhancing its mechanical strength and resistance to deformation. The elastic sealing ring 11 is responsible for conforming to the sealing surface surrounding the discharge hole b of the mixer, while the support frame 12 restricts its excessive compression or expansion, avoiding the attenuation of sealing force due to material creep or temperature changes, ensuring long-term sealing reliability. The support frame 12 bears mechanical stress, and the elastic sealing ring 11 can be made of softer or corrosion-resistant materials to improve sealing performance. The support frame 12 can be designed as metal or engineering plastic. Engineering plastics such as PEEK are resistant to high temperatures, chemical corrosion, or abrasion, expanding the application range of the sealing ring 1 in extreme environments. The elastic part compensates for gaps caused by installation errors or vibrations. The support frame 12 can provide a pre-formed structure, which simplifies the assembly process, prevents elastomer distortion in case of interference fit, and ensures the correct positioning of the sealing ring 1, reducing the risk of installation damage.

[0034] In some alternative embodiments, the support frame 12 includes a linear frame 121 that extends circumferentially along the discharge port b and is capable of conforming to the mixer.

[0035] Specifically, since the mixer includes a mixing drum with a discharge hole b and a discharge gate a, the discharge gate a can effectively seal the discharge hole b through the discharge gate sealing structure provided in this application. If the sealing surface area of ​​the mixing drum surrounding the discharge hole b is planar, the linear skeleton 121 extends circumferentially along the discharge hole b, ensuring that the sealing ring 1 is evenly stressed after installation, avoiding local deformation or stress concentration, and improving the uniformity and reliability of the seal. The design of the linear skeleton 121 fitting snugly with the discharge hole b enhances the overall adaptability of the sealing ring and reduces the risk of leakage due to processing errors or installation deviations. The linear skeleton 121 provides rigid support to prevent the elastic sealing ring 11 from circumferentially twisting, collapsing, or axially shifting under pressure or vibration, ensuring stable long-term sealing performance. Since the shape of the linear skeleton 121 matches that of the discharge hole b, such as a circle or square, it can better adapt to the contour of the discharge hole b, increasing the contact pressure of the sealing surface and preventing media leakage. The rigid structure of the linear skeleton 121 assists in the installation of the sealing ring 1, making it easier to align with the discharge port b, reducing assembly difficulty, and lowering the risk of seal failure due to improper installation. The linear skeleton 121 can be made of metal, such as stainless steel, or high-strength engineering plastics, such as PEEK, to improve temperature resistance, pressure resistance, and chemical corrosion resistance, making it suitable for harsh environments. The elastic sealing ring 11 retains its flexible sealing characteristics, compensating for minor surface unevenness or thermal expansion and contraction.

[0036] In some alternative embodiments, the support frame 12 includes an arcuate frame 122 that extends circumferentially along the discharge port b and is capable of conforming to the mixer.

[0037] Specifically, since the mixer includes a mixing drum, which has a discharge hole b and a discharge gate a, the discharge gate a can effectively seal the discharge hole b through the discharge gate sealing structure provided in this application. If the sealing surface area of ​​the mixing drum surrounding the discharge hole b is curved, and the curvature of the arc-shaped skeleton 122 matches the contour of the periphery of the discharge hole b (e.g., circular, elliptical, or irregularly shaped hole), it can fit more tightly against the hole wall, reducing local gaps and improving the uniformity and reliability of the seal. The geometry of the arc-shaped skeleton 122 can disperse external pressure, such as fluid pressure or mechanical load, reducing the local stress of the elastic sealing ring 11 and preventing it from being crushed or permanently deformed. The stress distribution of the arc-shaped structure is more uniform, reducing the risk of material fatigue under cyclic loads. Compared with a straight skeleton, the arc design can better absorb vibration energy, preventing the sealing ring 1 from loosening or falling off. The arc-shaped skeleton 122 can be flexibly designed as a single segment or a combination of multiple segments, with multiple arc-shaped skeletons 122 along the circumference of the discharge hole b.

[0038] In some alternative embodiments, the support frame 12 includes a linear frame 121 and an arcuate frame 122, which together form a structure extending circumferentially in the discharge hole b, and the linear frame 121 and the arcuate frame 122 are respectively attached to the mixer.

[0039] Specifically, since the mixer includes a mixing drum with a discharge hole b and a discharge gate a, the discharge gate a can effectively seal the discharge hole b through the discharge gate sealing structure provided in this application. The support frame 12 includes multiple linear frames 121 and multiple arc-shaped frames 122. Optionally, it includes two linear frames 121 and two arc-shaped frames 122. The two linear frames 121 are arranged in parallel and extend axially in the mixing drum. The two arc-shaped frames 122 are arranged in parallel and extend circumferentially in the mixing drum. One linear frame 121 and one arc-shaped frame 122 are arranged alternately to enclose the discharge hole b circumferentially. The linear frames 121 and arc-shaped frames 122 respectively fit into a portion of the mixer circumferentially around the discharge hole b. The linear frames 121 provide high-strength support to resist extrusion deformation under high pressure. The arc-shaped frames 122 absorb vibration or impact loads through elastic deformation, reducing stress concentration.

[0040] In some alternative embodiments, the unloading gate sealing structure further includes a patch 3 located at the contact surface between the first fixing component 2 and the sealing ring 1.

[0041] Specifically, patch 3, as an intermediate layer, fills the microscopic unevenness between the first fixing component 2 and the sealing ring 1, making the stress on the sealing ring 1 more uniform and avoiding leakage caused by local stress concentration. It is suitable for the hard-soft interface between the rigid first fixing component 2 and the elastic sealing ring 11, preventing the sealing ring 1 from local deformation and failure due to uneven pressure. Patch 3 protects the sealing ring 1, reducing sliding friction between the sealing ring 1 and the first fixing component 2, and also preventing the rough surface of the first fixing component 2 from directly scratching the sealing ring 1. Patch 3 itself can serve as an auxiliary sealing layer, forming a double sealing barrier with the sealing ring 1. By selecting patches 3 of different thicknesses, dimensional tolerances of the first fixing component 2 or the sealing ring 1 can be compensated, ensuring appropriate preload after assembly. Patch 3 is a stainless steel metal patch.

[0042] In some optional embodiments, the first fixing component 2 includes a first fixing part 21, a positioning part 22 and a first locking element 23. The first fixing part 21 covers a portion of the circumferential area of ​​the sealing ring 1. The positioning part 22 connects the first fixing part 21 and the mixer. A plurality of first locking elements 23 are arranged sequentially along the circumferential direction of the sealing ring 1. Each first locking element 23 passes through the first fixing part 21 and is pressed against the patch 3.

[0043] Specifically, multiple first locking elements 23 are sequentially arranged along the circumference of the sealing ring 1 to form a uniformly distributed clamping force, avoiding local loosening or stress concentration, and ensuring a complete fit between the sealing ring 1 and the discharge hole b. The first fixing part 21 wraps around a portion of the circumferential area of ​​the sealing ring 1, and combined with the uniform pressure of the locking elements, it can prevent the sealing ring 1 from twisting or shifting due to unilateral force. The first fixing part 21 wraps around a portion of the sealing ring 1, forming a mechanical constraint, limiting the radial expansion or compression deformation of the sealing ring 1, and maintaining shape stability, especially under high pressure conditions. The positioning part 22 connects the first fixing part 21 and the mixer, reducing the risk of seal failure caused by assembly errors. The first locking element 23 passes through the first fixing part 21 and squeezes the patch 3. By adjusting the locking force, the compression of the sealing ring 1 can be precisely controlled, avoiding damage to the sealing ring 1 due to overpressure or leakage due to underpressure. The patch 3, as an intermediate layer, uniformly transmits the locking force to the sealing ring 1, while compensating for surface unevenness between the first fixing part 2 and the sealing ring 1. Multiple first locking elements 23 are designed to resist bolt loosening caused by equipment vibration or impact, making them particularly suitable for high-frequency vibration scenarios such as mixers. The sealing ring 1 or patch 3 can be replaced by loosening the first locking elements 23 without disassembling the entire fixed component, reducing maintenance costs. The number and distribution of the first locking elements 23 can be flexibly adjusted according to the size of the sealing ring 1 or operating conditions.

[0044] Furthermore, through the wrapping constraint of the first fixing part 21, the precise centering of the positioning part 22, the uniform pressure of multiple first locking elements 23, and the interface optimization of the patch 3, this design achieves efficient fixing of the sealing ring 1, uniform pressure distribution, and dynamic adaptability, significantly improving sealing reliability, durability, and maintenance convenience.

[0045] Optional, such as Figure 6 As shown, the first fixing part 21 is in the shape of an inverted L or a C. The positioning part 22 is a fixing plate.

[0046] Or, such as Figure 7 As shown, the first fixing part 21 is T-shaped and includes two fixing elements, namely a first fixing element and a second fixing sleeve element. The first fixing element and the second fixing sleeve element are arranged vertically in a T-shape. The T-shaped first fixing part 21 includes two slots arranged back to back, one of which is used to accommodate the sealing ring 1. The first fixing element is welded to the stirring cylinder. At least one first locking element 23 passes through the first fixing element and presses against the patch 3. At least one first locking element 23 passes through the second fixing element and presses against the patch 3.

[0047] In some optional embodiments, the unloading gate sealing structure further includes a second fixing component 4 for fixing the sealing ring 1 to the mixer. The second fixing component 4 includes a second fixing part 41 and a second locking element 42. The second fixing part 41 is provided with a groove, the sealing ring 1 is disposed in the groove, the opening end of the groove faces and is fixed to the mixer, and the second locking element 42 passes through the second fixing part 41 and is pressed against the mixer.

[0048] Specifically, multiple second locking elements 42 are sequentially arranged circumferentially around the sealing ring 1. The sealing ring 1 is embedded in the groove of the second fixing part 41, and the sidewalls and bottom of the groove form a three-dimensional constraint, effectively limiting the radial displacement and axial movement of the sealing ring 1. The open end of the groove is fixed to the stirring drum, forming a closed fixing structure to prevent the sealing ring 1 from being squeezed out due to medium pressure or mechanical load. The groove structure evenly transmits the locking force of the second locking element 42 to the sealing ring 1 through the groove wall, avoiding deformation or wear of the sealing ring 1 caused by local stress concentration. The first fixing part 2 is responsible for circumferential clamping, and the second fixing part 4 provides axial limiting. The second fixing part 4 and the first fixing part 2 form a complementary fixing. The groove design allows the sealing ring 1 to automatically align during installation, reducing manual adjustment steps. The sealing ring 1 can be removed from the groove by disassembling the second locking element 42 without damaging other parts, reducing maintenance costs. The rigid structure of the groove can resist medium pressure and prevent the sealing ring 1 from being squeezed and deformed. The second fixing part 41 can be made of high-temperature resistant alloy or corrosion-resistant material to protect the sealing ring 1 from direct heat conduction or chemical corrosion. The second locking element 42 directly penetrates the fixing part and presses against the mixer, forming a rigid connection and reducing the risk of loosening caused by equipment vibration. The groove shape can be customized to be circular, rectangular, or irregular, matching the cross-sectional profile of the sealing ring 1, such as an O-ring, square ring, or a combined sealing ring 1. The second fixing component 4 achieves high-precision positioning, uniform force distribution, and resistance to working condition interference of the sealing ring 1 through groove embedding and rigid connection with the locking element, forming a multi-layer sealing protection system in conjunction with the first fixing component 2.

[0049] On the other hand, this application also provides a mixer including the discharge gate sealing structure mentioned in any of the above.

[0050] Specifically, the mixer includes a mixing drum with a discharge hole b and a discharge gate a. The discharge gate a can effectively seal the discharge hole b through the discharge gate sealing structure provided in this application. The discharge gate sealing structure is used to seal the gap between the discharge gate a and the discharge hole b of the mixer, and includes: a sealing ring 1, located in the mixing drum and extending circumferentially along the discharge hole b; and first fixing members 2 for fixing the sealing ring 1 to the mixer. Multiple first fixing members 2 are provided, and the multiple first fixing members 2 are evenly arranged in the extension direction of the length of the sealing ring 1. One end of each first fixing member 2 is fixed to the mixing drum, and the other end compresses the sealing ring 1.

[0051] Furthermore, the unloading gate sealing structure includes a sealing ring 1 and a first fixing component 2. The sealing ring 1 is located in the mixing drum and extends circumferentially along the unloading hole b. The first fixing component 2 is used to fix the sealing ring 1 to the mixing drum. Multiple first fixing components 2 are provided, and they are evenly arranged along the extension direction of the sealing ring 1, so that the sealing ring 1 is subjected to uniform clamping force, avoiding insufficient local pressure, and ensuring that the sealing ring 1 is evenly compressed around its entire circumference when the unloading gate a is closed, resulting in a tighter fit. The clamping force between each first fixing component 2 and the sealing ring 1 can be adjusted independently to compensate for slight deformation of the unloading gate a or the unloading hole b due to long-term use, maintaining sealing stability. One end of each first fixing component 2 is fixed to the mixing drum, and the other end compresses the sealing ring 1. The sealing ring 1 is installed through multiple independent first fixing components 2. When damaged, the sealing ring 1 can be replaced simply by loosening the corresponding first fixing component 21, making disassembly easier and eliminating the problem of residual glue cleaning. By increasing the number of first fixing components 2 or increasing the clamping force, the sealing requirements of high-pressure mixing can be met.

[0052] In this application, the term "multiple" refers to at least two or more, unless otherwise expressly defined. The terms "install," "connect," "link," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "link" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0053] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A sealing structure for a discharge gate, characterized in that, The gap between the discharge gate (a) and discharge port (b) of the mixer is used to seal the material, including: A sealing ring (1) is located in the mixer and extends circumferentially along the discharge port (b); First fixing component (2) is used to fix the sealing ring (1) to the mixer. Multiple first fixing components (2) are provided. Multiple first fixing components (2) are evenly arranged in the extension direction of the length of the sealing ring (1). One end of each first fixing component (2) is fixed to the mixer, and the other end squeezes the sealing ring (1). An extension plate (5) is provided circumferentially along the unloading gate (a).

2. The unloading gate sealing structure according to claim 1, characterized in that, The sealing ring (1) includes an elastic sealing ring (11) and a support frame (12). The elastic sealing ring (11) has a through hole inside, and the support frame (12) fills the through hole of the elastic sealing ring (11) to support the elastic sealing ring (11).

3. The unloading gate sealing structure according to claim 2, characterized in that, The support frame (12) includes a linear frame (121) that extends circumferentially along the discharge hole (b) and is able to fit into the mixer.

4. The unloading gate sealing structure according to claim 2, characterized in that, The support frame (12) includes an arc-shaped frame (122) that extends circumferentially along the discharge hole (b) and is able to fit into the mixer.

5. The unloading gate sealing structure according to claim 2, characterized in that, The support frame (12) includes a linear frame (121) and an arc-shaped frame (122). The linear frame (121) and the arc-shaped frame (122) are arranged to form a structure that extends circumferentially around the discharge hole (b). The linear frame (121) and the arc-shaped frame (122) are respectively attached to the mixer.

6. The unloading gate sealing structure according to any one of claims 1-5, characterized in that, It also includes a patch (3) located at the contact surface between the first fixing component (2) and the sealing ring (1).

7. The unloading gate sealing structure according to claim 6, characterized in that, The first fixing component (2) includes a first fixing part (21), a positioning part (22) and a first locking element (23). The first fixing part (21) covers a portion of the circumferential area of ​​the sealing ring (1). The positioning part (22) connects the first fixing part (21) and the mixer. A plurality of first locking elements (23) are arranged sequentially along the circumferential direction of the sealing ring (1). Each first locking element (23) passes through the first fixing part (21) and is pressed against the patch (3).

8. The unloading gate sealing structure according to claim 7, characterized in that, The first fixing part (21) is T-shaped or inverted L-shaped.

9. The unloading gate sealing structure according to claim 8, characterized in that, It also includes a second fixing component (4), which is used to fix the sealing ring (1) to the mixer. The second fixing component (4) includes a second fixing part (41) and a second locking element (42). The second fixing part (41) is provided with a groove, and the sealing ring (1) is disposed in the groove. The opening end of the groove faces and is fixed to the mixer. The second locking element (42) passes through the second fixing part (41) and is pressed against the mixer.

10. A mixer, characterized in that, Includes the unloading gate sealing structure as described in any one of claims 1-9.

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