Tipping bucket type internal mixer

Abstract

The utility model discloses a tipping bucket type internal mixer, and relates to the technical field of internal mixers, the tipping bucket type internal mixer comprises a feeding door mechanism, the feeding door mechanism comprises a door frame, the door frame is provided with a first side and a second side which are opposite to each other; the door body is used for closing the door frame, the first side is used for facing the door body, and the first side is provided with a first groove in the extending direction of the door frame; the first sealing strip is arranged in the groove and can be inflated; the door body has a closed state relative to the door frame, and in the closed state, the first sealing strip is in an inflated state and abuts against the door body. The problem that powder leaks from the periphery of equipment during high-altitude feeding of the tipping bucket type internal mixer can be solved.

Description

Technical Field

[0001] This utility model relates to the field of internal mixer technology, and in particular to a tilting bucket internal mixer. Background Technology

[0002] The friction products used in train clamp brakes are formulated with rubber, accelerators, vulcanizing agents, inorganic fillers, metal powders, graphite, and fibers. All raw materials need to be uniformly mixed using a bucket mixer. If materials are manually fed into the bucket mixer's inlet, the existing equipment's sealing performance meets production and process requirements, and there is virtually no dust around the equipment. However, in actual automated production, raw materials are weighed using an automated batching system located at a higher position and then fed into the mixer by their own weight. Due to the mixer's poor sealing and excessive feeding height, air cannot be completely expelled from the pipes, resulting in significant powder leakage around the mixer. This leads to excessive loss of formulated materials and affects product quality.

[0003] Therefore, a new type of tipping bucket internal mixer is needed. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide a tipping bucket internal mixer that can solve the problem of powder leakage around the equipment when feeding material at high altitude.

[0005] The specific technical solution of this utility model embodiment is as follows:

[0006] A tipping bucket internal mixer, the tipping bucket internal mixer comprising:

[0007] The feeding gate mechanism includes:

[0008] A door frame having opposing first and second sides;

[0009] A door body for closing the door frame, the first side facing the door body, the first side having a first groove along the extending direction of the door frame;

[0010] An inflatable first sealing strip is disposed in the first groove;

[0011] The door is in a closed state relative to the door frame. In the closed state, the first sealing strip is in an inflated state and abuts against the door.

[0012] Preferably, the cross-section of the first sealing strip facing the door body is arc-shaped.

[0013] Preferably, when the first sealing strip is inflated and fully expanded, the thickness of the first sealing strip is greater than the distance from the bottom of the first groove to the side of the door facing the door frame.

[0014] Preferably, the door body moves along the extension direction of the door frame so that the door body has a closed state and an open state relative to the door frame.

[0015] Preferably, the first sealing strip has an air nozzle communicating with the interior of the first sealing strip;

[0016] The tilting bucket internal mixer also includes:

[0017] A pressurization unit, the outlet of which can be connected to the air nozzle.

[0018] Preferably, after the door body is in the closed state relative to the door frame, the pressurizing unit is in the pressurizing operation state to inflate the first sealing strip.

[0019] Preferably, before the door body is in the open state relative to the door frame, the pressurization unit is in the depressurization operation state to release air from the first sealing strip.

[0020] Preferably, the shape of the extension of the first groove corresponds to the shape of the extension of the door frame.

[0021] Preferably, the air nozzle is located on the outer or inner sidewall of the first sealing strip.

[0022] Preferably, the tipping bucket internal mixer comprises:

[0023] The unloading gate sealing mechanism includes: a front frame, a left frame, and a right frame, wherein the front frame, the left frame, and the right frame each have a second groove on the side facing the unloading gate; and an inflatable second sealing strip disposed in the second groove.

[0024] When the front frame, the left frame, and the right frame are opposite to the unloading gate, the second sealing strip is in an inflated state, and the second sealing strip presses against the unloading gate to form the unloading gate.

[0025] The technical solution of this utility model has the following significant beneficial effects:

[0026] As the internal air pressure of the first sealing strip increases, the thickness of the first sealing strip changes. The greater the internal pressure of the first sealing strip, the greater its thickness. When the door is in a closed state relative to the door frame, the first sealing strip is inflated, increasing its thickness and thus pressing tightly against the door. This eliminates any tiny gaps between the door frame and the door, preventing raw materials from spraying out from the gaps when the bucket mixer is fed from high altitude, and preventing powder leakage around the equipment. Attached Figure Description

[0027] The accompanying drawings described herein are for illustrative purposes only and are not intended to limit the scope of this invention in any way. Furthermore, the shapes and proportions of the components in the drawings are merely illustrative to aid in understanding the invention and do not specifically limit the shapes and proportions of the components. Those skilled in the art, under the guidance of this invention, can select various possible shapes and proportions to implement this invention according to specific circumstances.

[0028] Figure 1 This is a schematic diagram of the door frame structure in the feeding door mechanism of this utility model embodiment;

[0029] Figure 2 This is a schematic diagram of the structure of the first sealing strip in the feeding gate mechanism of this utility model embodiment;

[0030] Figure 3 for Figure 2 Side view of the first sealing strip.

[0031] The reference numerals in the above figures are as follows:

[0032] 1. Door frame; 11. First side; 12. First groove; 2. First sealing strip; 21. Arc shape; 22. Air nozzle. Detailed Implementation

[0033] The details of this utility model can be more clearly understood by referring to the accompanying drawings and the description of specific embodiments. However, the specific embodiments of this utility model described herein are for illustrative purposes only and should not be construed as limiting the utility model in any way. Under the teachings of this utility model, those skilled in the art can conceive of any possible modifications based on this utility model, and these should all be considered to fall within the scope of this utility model.

[0034] To address the issue of powder leakage around the equipment during high-altitude feeding in a tipping bucket internal mixer, this application proposes a tipping bucket internal mixer. Figure 1 This is a schematic diagram of the door frame structure in the feeding door mechanism of this utility model embodiment. Figure 2This is a schematic diagram of the structure of the first sealing strip in the feeding gate mechanism of this utility model embodiment, as shown below. Figure 1 and Figure 2 As shown, the tipping bucket internal mixer may include: a feeding gate mechanism, the feeding gate mechanism including: a gate frame, the gate frame having a first side 11 and a second side facing each other; a gate body for closing the gate frame, the first side 11 having a first groove 12 facing the first side 11 of the gate body along the extending direction of the gate frame; an inflatable first sealing strip 2 disposed in the first groove 12; the gate body having a closed state relative to the gate frame, in the closed state, the first sealing strip 2 being inflated and pressing against the gate body.

[0035] The door frame can be a frame-shaped structure, such as a polygonal structure, a circular or elliptical structure, or other irregular shapes. Generally, the door frame is rectangular. The door frame can have a first side 11 and a second side facing each other, wherein the first side 11 faces the door body.

[0036] The door body is used to close the door frame. When the door body closes the door frame, the side of the door body facing the door frame is opposite to the first side 11 of the door frame, thereby closing the hollow in the middle of the door frame.

[0037] The first side 11 of the door frame has a first groove 12 along the extending direction of the door frame. The first groove 12 is used to accommodate a first sealing strip 2. The cross-sectional shape of the first groove 12 can match the first sealing strip 2. The first groove 12 can extend along the extending direction of the door frame. When the door frame is a closed shape, the first groove 12 can also be a closed shape. For example, the extending shape of the first groove 12 corresponds to the extending shape of the door frame. Specifically, when the door frame is rectangular, the first groove 12 can also be rectangular. Of course, when the door frame is a closed shape, the first groove 12 may not be a closed shape; it can be a partial shape of the door frame. For example, when the door frame is rectangular, the first groove 12 can be only the shape of three, two, or one side of the rectangle, so that the first sealing strip 2 only seals a portion of the edge of the door frame.

[0038] As a feasible option, the door frame can be manufactured by splicing, with the joints sanded smooth to remove burrs. Additionally, the surface of the door frame can be anodized.

[0039] The first sealing strip 2 is disposed in the first groove 12. The first sealing strip 2 is a hollow, inflatable sealing strip. As the internal air pressure of the first sealing strip 2 increases, the thickness of the first sealing strip 2 will change. The greater the internal pressure of the first sealing strip 2, the greater the thickness of the first sealing strip 2. The door body is in a closed state relative to the door frame. In the closed state, the first sealing strip 2 is in an inflated state, and the thickness of the first sealing strip 2 is increased compared to before, so that the first sealing strip 2 presses tightly against the door body, thereby eliminating the tiny gaps between the door frame and the door body. This prevents raw materials from spraying out from the gaps between the door frame and the door body when the tipping bucket mixer is fed from high altitude, and prevents powder leakage around the equipment.

[0040] When the first sealing strip 2 is inflated and fully expanded, its thickness is greater than the distance from the bottom of the first groove 12 to the side of the door facing the door frame. After the first sealing strip 2 is installed in the first groove 12, the door will obstruct its expansion, preventing the first sealing strip 2 from fully expanding; its volume cannot be maximized. Therefore, the first sealing strip 2 can only press against the door, effectively sealing it.

[0041] In addition, since the first sealing strip 2 is in an inflated state, the pressure inside the first sealing strip 2 can control the degree to which the first sealing strip 2 presses against the door body. When the first sealing strip 2 presses against the door body more tightly, even if a certain amount of pressure is generated inside the tipping bucket mixer when feeding material at high altitude, the raw material is less likely to be ejected from between the door frame and the door body.

[0042] As an option, the cross-section of the first sealing strip 2 facing the door body is arc-shaped 21. In this way, when the first sealing strip 2 is in an inflated state, the contact area between the first sealing strip 2 and the door body can be reduced. Under the same pressure conditions, the smaller the contact area between the first sealing strip 2 and the door body, the greater the pressure on the contact surface, which can further improve the sealing degree between the first sealing strip 2 and the door body.

[0043] As a feasible approach, there can be a variety of different ways to open and close the door frame and the door body. For example, the door body can be rotated to open and close, or it can be moved to open and close.

[0044] When the door opens and closes with the door frame through translation, it cannot be directly pressed against the door frame without other mechanisms. This is because a small gap is generally necessary to ensure smooth door movement. Even if the door frame has an elastic layer to ensure a tight fit between the frame and the door, the pressure of this tight fit cannot be too high, otherwise it will hinder the door's translation or directly damage the elastic layer. This application solves the problem of the door's inability to completely seal with the door frame during translation using an inflatable first sealing strip 2. Therefore, this application is particularly suitable for situations where the door moves along the extension direction of the door frame, allowing the door to be in both a closed and open state relative to the door frame. When the air pressure in the first sealing strip 2 is low, its thickness is small. In this case, the door can easily open and close with the door frame through translation without damaging the first sealing strip 2. When the door body has been moved to achieve a complete seal with the door frame, air is injected into the first sealing strip 2 to increase its air pressure and thickness.

[0045] In order to enable the inflation of the first sealing strip 2, Figure 3 for Figure 2 Side view of the first sealing strip, as shown Figure 3 As shown, the first sealing strip 2 may have a gas nozzle 22 communicating with the interior of the first sealing strip 2. The tipping bucket internal mixer further includes a pressurizing unit, the outlet of which is connected to the gas nozzle 22. The pressurizing unit is used to output gas to pressurize the interior of the first sealing strip 2. After the door is closed relative to the door frame, the pressurizing unit is in pressurizing operation to inflate the first sealing strip 2.

[0046] Alternatively, the pressurization unit can also be used to extract gas, thereby reducing the pressure inside the first sealing strip 2. Before the door body is in the open state relative to the door frame, the pressurization unit is in a depressurization operation state to release gas from the first sealing strip 2.

[0047] To prevent the air nozzle 22 from affecting the sealing degree between the first sealing strip 2 and the door frame and door body, the air nozzle 22 is located on the outer or inner side wall of the first sealing strip 2.

[0048] The first sealing strip 2 is generally made of a flexible material. For example, the first sealing strip 2 can be made of rubber, preferably nitrile rubber. Preferably, the first sealing strip 2 can have a certain degree of temperature resistance, for example, it can withstand a temperature of 200 degrees Celsius, thereby ensuring its practicality and reliability.

[0049] As an option, the tipping bucket internal mixer may include: a discharge gate sealing mechanism, comprising: a front frame, a left frame, and a right frame, wherein the front frame, the left frame, and the right frame have a second groove on the side facing the discharge gate; and an inflatable second sealing strip disposed in the second groove;

[0050] When the front frame, the left frame, and the right frame are opposite to the unloading gate, the second sealing strip is in an inflated state, and the second sealing strip presses against the unloading gate to form the unloading gate.

[0051] When the front frame, left frame, and right frame are aligned with the discharge gate, the material in the tilting chamber is discharged through the discharge gate. A second sealing strip ensures a seal between the discharge gate and the front frame, left frame, and right frame, preventing raw materials from leaking out through gaps between these components. The front frame, left frame, and right frame are installed at the junction of the discharge gate and the upper part of the internal mixer bucket; that is, after alignment, they connect. The upper part has an opening, and the hydraulic top bolt of the tilting internal mixer can press down the discharge gate into the tilting chamber through the opening of the upper part. When the discharge gate of the internal mixer bucket is aligned with the upper part, material can be fed into the mixing chamber of the internal mixer bucket through the opening of the upper part. The upper part forms an upper feeding channel, with the opening located at the end of the upper feeding channel.

[0052] All articles and references disclosed herein, including patent applications and publications, are incorporated herein by reference for various purposes. The term “substantially constitutes…” used to describe a combination should include the identified element, component, part, or step, as well as other elements, components, parts, or steps that do not substantially affect the essential novelty of the combination. The use of the terms “comprising” or “including” to describe combinations of elements, components, parts, or steps herein also contemplates embodiments substantially constituted by such elements, components, parts, or steps. The use of the term “may” herein is intended to indicate that any described attribute “may” include is optional. Multiple elements, components, parts, or steps can be provided by a single integrated element, component, part, or step. Alternatively, a single integrated element, component, part, or step can be divided into multiple separate elements, components, parts, or steps. The disclosure of “a” or “an” used to describe an element, component, part, or step does not imply exclusion of other elements, components, parts, or steps.

[0053] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A tipping bucket internal mixer, characterized in that, The tilting bucket internal mixer includes: The feeding gate mechanism includes: A door frame having opposing first and second sides; A door body for closing the door frame, the first side facing the door body, the first side having a first groove along the extending direction of the door frame; An inflatable first sealing strip is disposed in the first groove; The door is in a closed state relative to the door frame. In the closed state, the first sealing strip is in an inflated state and abuts against the door.

2. The tipping bucket internal mixer according to claim 1, characterized in that, The cross-section of the first sealing strip facing the side of the door is arc-shaped.

3. The tipping bucket internal mixer according to claim 1, characterized in that, When the first sealing strip is inflated and fully expanded, the thickness of the first sealing strip is greater than the distance from the bottom of the first groove to the side of the door facing the door frame.

4. The tipping bucket internal mixer according to claim 1, characterized in that, The door body moves along the extension direction of the door frame so that the door body has a closed state and an open state relative to the door frame.

5. The tipping bucket internal mixer according to claim 1, characterized in that, The first sealing strip has an air nozzle that communicates with the interior of the first sealing strip; The tilting bucket internal mixer also includes: A pressurization unit, the outlet of which can be connected to the air nozzle.

6. The tipping bucket internal mixer according to claim 5, characterized in that, After the door is closed relative to the door frame, the pressurizing unit is in pressurizing operation to inflate the first sealing strip.

7. The tipping bucket internal mixer according to claim 6, characterized in that, Before the door body is in the open state relative to the door frame, the pressurization unit is in the depressurization operation state to release air from the first sealing strip.

8. The tipping bucket internal mixer according to claim 1, characterized in that, The shape of the extension of the first groove corresponds to the shape of the extension of the door frame.

9. The tipping bucket internal mixer according to claim 5, characterized in that, The air nozzle is located on the outer or inner side wall of the first sealing strip.

10. The tipping bucket internal mixer according to claim 1, characterized in that, The tilting bucket internal mixer includes: The unloading gate sealing mechanism includes: a front frame, a left frame, and a right frame, wherein the front frame, the left frame, and the right frame each have a second groove on the side facing the unloading gate; and an inflatable second sealing strip disposed in the second groove. When the front frame, the left frame, and the right frame are opposite to the unloading gate, the second sealing strip is in an inflated state, and the second sealing strip presses against the unloading gate to form the unloading gate.

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