Self-sealing flexible discharge device

Abstract

The utility model discloses a self -sealing flexible discharge device, including control circuit and install sensor assembly in the device body lateral wall, the device body includes: cavity, the plugboard is clamped on the guide rail sliding block of support frame setting both ends, and the middle part is connected with the working end of rodless cylinder, the support frame is rectangular frame structure, and the perpendicular cavity end surface is connected, and its symmetrical both ends are provided with the guide rail sliding block, and the middle part is connected with the fixed end of rodless cylinder, wherein, the electric connection between rodless cylinder, sensor assembly, conveyer belt and control circuit. The utility model discloses through design plugboard and rodless cylinder connection, when the material level in the cavity is lower than low sensor, uses rodless cylinder to push plugboard and embeds in the cavity, and closes the discharge port below the cavity and makes material accumulation, and the sealing in the cavity is formed by material accumulation, when the material level reaches the high sensor, and rodless cylinder draws out plugboard, and makes material natural drop, reaches the effect of flexible discharge.

Description

Technical Field

[0001] This utility model relates to the field of tobacco air separation equipment, specifically to a self-sealing flexible discharge device. Background Technology

[0002] In tobacco production, to improve production efficiency and tobacco quality, wind power is often used for sorting and long-distance conveying of tobacco materials. In the wind-powered processes, pressure differences are typically created through positive and negative pressure to achieve these functions, thus requiring high airtightness of the equipment. To ensure both airtightness and material output, airlock cross gates are commonly used as the discharge mechanism. These cross gates, also known as airlocks or unloaders, discharge material while maintaining airtightness at the inlet. However, the small gap between the material-discharging plate and the cavity in this mechanism poses a risk of blockage during material discharging. Furthermore, the high-frequency rotation of the material during discharge results in significant material breakage.

[0003] Currently, a search reveals that Chinese utility model patent CN221694357U discloses a flexible tobacco air separation device, comprising: a weighing belt; a feeding and equalizing vibrating trough; a baffle plate; a side air supply device; a primary air separation box; a feeding belt; a lower air inlet; a secondary separation box; a needle roller; a primary sorting outlet; a first discharge belt; a secondary air separation box; a secondary sorting outlet; a primary air separation outlet; a second discharge belt; a third discharge belt; and a secondary air separation outlet. While this patent can solve the problem of stable conveying when materials accumulate under different flow rates, it still has the following technical drawbacks:

[0004] On the one hand, needles are installed in the separation box to disperse aggregates and tangled materials, which can damage the tobacco.

[0005] On the other hand, the air-separated material falls directly onto the conveyor belt for transport. When the air-separated material is stacked, it can put pressure on the bottom layer of material under heavy conditions, which may cause it to break.

[0006] The aforementioned air separation device suffers from numerous defects and shortcomings, such as the use of needle rollers to push materials and the direct fall of the separated material onto the conveyor belt, which easily leads to breakage. Therefore, the key to solving these technical problems lies in developing a more practical and efficient self-sealing flexible discharge device. Summary of the Invention

[0007] In view of the many defects and deficiencies in the above-mentioned background technology, this utility model has made improvements and innovations, aiming to provide a self-sealing flexible discharge device that uses the tobacco material to form a closed space by its own accumulation, so as to achieve self-sealing of the material. During the sealing process, the tobacco is only subjected to the pressure between the materials. After sealing, the falling speed of the material is slowed down, which greatly reduces the possibility of it breaking.

[0008] Another objective of this invention is to design an insert plate and connect it to a rodless cylinder. When the sensor assembly detects signals at different positions, the rodless cylinder is controlled to reciprocate the insert plate, thereby sealing and opening the cavity.

[0009] Another objective of this invention is to design a fixed rod and install a sensor mounting bracket on the fixed rod. The sensor mounting bracket can move longitudinally on the fixed rod. The operator can adjust the position of the sensor mounting bracket according to different situations, thereby adjusting the position of the sensor assembly to match the output volume and output rate of the air separator.

[0010] To solve the above problems and achieve the objectives of the invention, this utility model provides a self-sealing flexible discharge device through the following design structure and technical solution:

[0011] A self-sealing flexible discharge device includes a control circuit and a sensor assembly mounted on the side wall of the device body. The device body includes:

[0012] The cavity has one end connected to the discharge port and the other end suspended above the conveyor belt. Its side walls are symmetrically equipped with fixing rods, which are connected to the sensor assembly.

[0013] The insert plate is snapped onto the guide rail sliders set at both ends of the support frame, and the middle part is connected to the working end of the rodless cylinder. It passes through the pre-set elongated hole on the cavity to close the bottom of the cavity.

[0014] The support frame is a rectangular frame structure, connected perpendicular to the end face of the cavity. Guide rail sliders are set at its symmetrical ends, and the middle part is connected to the fixed end of the rodless cylinder.

[0015] The rodless cylinder, sensor assembly, conveyor belt, and control circuit are electrically connected.

[0016] Preferably, the cavity includes:

[0017] Mounting plates are symmetrically arranged on the side wall of the cavity, and fixing rods are provided on the mounting plates;

[0018] A fixed rod is provided, on which several sensor mounting brackets are provided, and sensor assemblies are provided on the sensor mounting brackets.

[0019] Preferably, the sensor assembly includes a high-position sensor, a mid-position sensor, and a low-position sensor, which are installed longitudinally from high to low on the sensor mounting bracket to determine the material accumulation height inside the cavity.

[0020] Preferably, the fixed rod is provided with a sliding groove, the sensor mounting bracket moves longitudinally within the sliding groove, and is fixed to the fixed rod by a limiting member.

[0021] Preferably, the mounting plate is made of a transparent material, which facilitates the sensor assembly in determining the material accumulation height inside the cavity.

[0022] Preferably, the cavity further includes:

[0023] The inspection port is located in the middle of the end face of the cavity. It has a handle on one side and is hinged to the cavity on the other side, and is used for inspection of the inside of the cavity.

[0024] Preferably, the conveyor belt is speed-regulated by a geared motor with frequency conversion, and the geared motor is electrically connected to the control circuit.

[0025] Preferably, the sensor mounting bracket is also provided with an arc-shaped dust cover to prevent dust and debris from obscuring the sensor components and causing erroneous judgments.

[0026] Preferably, the control circuit is a PLC circuit.

[0027] The working principle is as follows: In the above-described self-sealing flexible discharge device, one end of the cavity 1 is connected to the air-separated discharge port and suspended on the conveyor belt 6. At this time, the insert plate 2 is located inside the cavity 1 and closes the discharge port below the cavity 1. As the material continuously increases, the materials stack up. During the stacking process, the subsequent material squeezes the previous material, causing some air to be squeezed out. With the insert plate 2 closing the discharge port below the cavity 1, the material accumulation leads to a tighter contact between the materials inside the cavity, achieving a near-sealed effect. When the material accumulates to a high position and the materials on both sides simultaneously block the high-position sensor 51, the material inside the cavity 1... Under the action of the air separator, the material is in a sealed state. The high-level sensor 51 sends a signal to the control circuit 7, which controls the rodless cylinder 4 to move and pull the insert plate 2 out of the cavity 1. The insert plate 2 slides on the guide rail slider 31. The material level in the cavity 1 slowly descends under the action of gravity and comes into contact with the conveyor belt 6. At this time, because the cavity 1 is in a sealed state, the material level descends at a speed less than the natural falling speed of the material, preventing the material from breaking. When the material level drops to between the high-level sensor 51 and the middle-level sensor 52, the control circuit 7 controls the conveyor belt 6 to start running, and the air separator discharge port continues to discharge material. The material accumulates in the cavity 1, keeping the cavity 1 sealed at all times.

[0028] During the continuous conveying process of conveyor belt 6, when the material level drops below the middle position sensor 52 and above the low position sensor 53, the control circuit 7 controls the conveyor belt 6 to reduce its running speed. When the material level is between the middle position sensor 52 and the high position sensor 51, the control circuit 7 controls the conveyor belt 6 to run quickly, so that the material level is always kept above the low position sensor 53 and below the high position sensor 51, ensuring that the material accumulates in the cavity 1 by itself to form a seal. When the low position sensor 53 does not detect material, the control circuit 7 controls the rodless cylinder 4 to push the insert plate 2 into the cavity 1, closing the material drop port below the cavity 1, so that the material begins to accumulate and achieves a seal. Then, by repeating the above process, flexible discharge is completed, and the material height is linked to the running speed of the conveyor belt 6 to ensure the uniform distribution of the material on the conveyor belt.

[0029] In summary, the beneficial effects of this utility model compared with the prior art are as follows:

[0030] 1. This utility model is designed to connect the insert plate with the rodless cylinder. When the material level in the cavity is lower than the low-level sensor, the rodless cylinder pushes the insert plate into the cavity, closes the discharge port at the bottom of the cavity, and causes the material to accumulate. The accumulation of material forms a seal in the cavity. When the material level reaches the high-level sensor, the rodless cylinder pulls out the insert plate, allowing the material to fall naturally, achieving the effect of flexible material discharge.

[0031] 2. This utility model designs a guide rail slider to engage both sides of the insert plate on the guide rail slider, thereby reducing the resistance during the displacement of the insert plate and limiting the movement trajectory of the insert plate to prevent jamming during the displacement of the insert plate.

[0032] 3. This utility model, by designing a fixed rod and setting a sensor mounting bracket on the fixed rod, allows the operator to change and adjust the longitudinal installation position of the sensor assembly, better matching the speed differences that exist during the natural fall of different materials;

[0033] 4. Due to the design of the transparent mounting plate, this utility model facilitates the sensor assembly in determining the height of the material inside the cavity;

[0034] 5. Due to the design of the inspection port, this utility model allows operators to open the inspection port to promptly clear any blockages that occur inside the cavity.

[0035] 6. Because the sensor assembly is linked with the conveyor belt, the conveyor belt runs at different speeds depending on the height of the material, ensuring uniform material distribution during the material conveying process. Attached Figure Description

[0036] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0037] Figure 1This is a schematic diagram of the usage state of this utility model;

[0038] Figure 2 This is a schematic diagram of the material level obstruction high-level sensor 51 of this utility model;

[0039] Figure 3 This is a schematic diagram showing the material level of this utility model located between the high-level sensor 51 and the middle-level sensor 52;

[0040] Figure 4 This is a schematic diagram of how the insert plate 2 is embedded in the cavity 1 to achieve sealing when the material level is lower than the low-level sensor 53.

[0041] Figure 5 This is one of the schematic diagrams of the overall structure of this utility model;

[0042] Figure 6 This is the second schematic diagram of the overall structure of this utility model;

[0043] Figure 7 This is a front view of the overall structure of this utility model;

[0044] Figure 8 This is a side view of the overall structure of this utility model;

[0045] Figure 9 This is a schematic diagram of the connection of the mounting plate 11 of this utility model;

[0046] Figure 10 This is a schematic diagram of the movement trajectory of the insert plate 2 of this utility model;

[0047] Figure 11 This is a schematic diagram of the longitudinal movement of the sensor assembly 5 on the fixed rod 12 of this utility model;

[0048] Figure 12 This is a schematic diagram of the opening of the inspection port 13 of this utility model;

[0049] In the diagram, the numbers are: 1—cavity, 11—mounting plate, 12—fixing rod, 121—sensor mounting bracket, 13—inspection port;

[0050] 2—Plug-in;

[0051] 3—Support frame, 31—Guide rail slider;

[0052] 4—Rodless cylinder;

[0053] 5—Sensor assembly, 51—High-position sensor, 52—Mid-position sensor, 53—Low-position sensor;

[0054] 6—Conveyor belt;

[0055] 7—Control circuit. Detailed Implementation

[0056] To make the technical means, inventive features, and achieved objectives and effects of this utility model readily understandable, the technical solution of this 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 in the embodiments of this application can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0057] Example 1

[0058] like Figures 5 to 8 The self-sealing flexible discharge device shown includes a control circuit 7 and a sensor assembly 5 installed on the side wall of the device body. The device body includes:

[0059] Cavity 1, one end of cavity 1 is connected to the discharge port, and the other end is suspended above the conveyor belt 6. Fixed rods 12 are symmetrically arranged on its side wall, and the fixed rods 12 are connected to the sensor assembly 5.

[0060] Insert plate 2, with both ends snapped onto the guide rail slider 31 set on the support frame 3, and the middle part connected to the working end of the rodless cylinder 4, passing through the preset elongated hole on the cavity 1 to close the bottom of the cavity 1;

[0061] Support frame 3 is a rectangular frame structure, connected perpendicular to the end face of cavity 1, with guide rail sliders 31 at its symmetrical ends, and the middle part is connected to the fixed end of rodless cylinder 4.

[0062] The rodless cylinder 4, sensor assembly 5, conveyor belt 6, and control circuit 7 are electrically connected.

[0063] Before using the self-sealing flexible discharge device with the above-described design structure, the cavity is first assembled. Mounting plates 11 are symmetrically arranged on both sides of the cavity 1. Fixing rods 12 are symmetrically installed on the side walls of the cavity 1. Sensor mounting brackets 121 are installed on the fixing rods 12, and sensor assemblies 5 are respectively installed on the sensor mounting brackets 121. Due to the transparent material design of the mounting plates 11, the sensor assemblies 5 can detect the material accumulation inside the cavity 1. An elongated hole is opened below the cavity 1, located below the low-position sensor 53. A support frame 3 is installed below the elongated hole, and guide rail sliders 31 are installed on both symmetrical sides of the support frame 3. The fixed end of the rodless cylinder 4 is installed in the middle of the support frame 3. The insert plate 2 is snapped onto the guide rail slider 31, and the working end of the rodless cylinder 4 is connected to the insert plate 2. At this time, the insert plate 2 is located outside the cavity 1, with its long side embedded in the elongated hole in the cavity 1, flush with the inner wall of the cavity 1. Under the action of the rodless cylinder 4, it is embedded into the cavity 1. Figure 5As shown, the material inlet below the cavity 1 is closed, and then the upper part of the cavity 1 is connected to the outlet of the air classifier using fixing bolts, so that the present invention is suspended above the conveyor belt 6, thus completing the installation of the present invention.

[0064] During use, after being separated by air, the material falls naturally from the outlet of the air separator into chamber 1. Figure 1 As shown, at this time, the insert plate 2 closes the discharge port below the cavity 1 under the action of the rodless cylinder 4, and the material accumulates in the cavity 1, as shown. Figure 4 As shown, the stacking of materials creates a sealed environment inside cavity 1. When the stacking height obstructs the high-position sensors 51 on both sides of cavity 1, as... Figure 2 As shown, the high-position sensor 51 sends a signal to the control circuit 7. After receiving the signal, the control circuit 7 controls the rodless cylinder 4 to move, pulling the insert plate 2 out of the cavity 1. At this time, the two ends of the insert plate 2 slide on the guide rail slider 31, and the material inside the cavity 1 falls naturally under the action of gravity through the guide rail slider 31. Figure 3 As shown, during the falling process, due to the sealing effect of the stacked materials, the falling speed is slower than direct falling, preventing the bottom layer of materials from being crushed. After falling, the materials come into contact with the conveyor belt 6, and the material level in the cavity 1 drops to between the high-level sensor 51 and the middle-level sensor 52. The middle-level sensor 52 sends a signal to the control circuit 7. After receiving the signal, the control circuit 7 controls the conveyor belt 6 to operate, transporting the material to the next station. When the material level in the cavity 1 continues to drop to between the middle-level sensor 52 and the low-level sensor 53, the low-level sensor 53 sends a signal to the control circuit 7, controlling... Circuit 7 controls the conveyor belt 6 to decelerate, maintaining the material level between the low-level sensor 53 and the high-level sensor 51, ensuring sufficient material accumulates in the cavity 1 and keeping the cavity 1 sealed. When the material level drops below the low-level sensor 53, i.e., when the low-level sensor 53 detects no material, the low-level sensor 53 sends a signal to the control circuit 7. Upon receiving the signal, the control circuit 7 controls the conveyor belt 6 to stop running, and the rodless cylinder 4 pushes the insert plate 2, causing the insert plate 2 to insert into the cavity 1 through the elongated hole, closing the material outlet at the bottom of the cavity 1, allowing the material to accumulate in the cavity 1. Figure 4 As shown, when the material accumulation height reaches the high-level sensor 51, the above process is repeated to ensure continuous material conveying.

[0065] Example 2

[0066] This embodiment 2 is the same as embodiment 1, except that the fixed rod 12 is provided with a sliding groove, the sensor mounting bracket 121 moves longitudinally in the sliding groove and is fixed to the fixed rod 12 by a limiting member.

[0067] In this invention, the operator adjusts the position of the sensor mounting bracket 121 according to the different materials, such as... Figure 11As shown, the position of the sensor assembly 5 is matched to the falling speed of the material under different weight conditions, ensuring that the material level is between the high-position sensor 51 and the low-position sensor 53 during operation, so that the material accumulation in the cavity 1 achieves the sealing of the cavity 1, preventing the situation where the position of the sensor assembly 5 is difficult to match the material level in the cavity 1 due to the material falling too fast or too slow.

[0068] Example 3

[0069] This embodiment 3 is the same as embodiment 1 and embodiment 2, except that the cavity 1 also includes an inspection port 13. The inspection port 13 is located in the middle of the end face of the cavity 1, with a handle on one side and hinged to the cavity 1 on the other side, for inspection of the inside of the cavity 1.

[0070] In this utility model, by providing an inspection port 13, when a blockage occurs inside the cavity 1, the operator can pull the handle to open the inspection port 13, such as... Figure 12 As shown, use a tool to gently push the material towards the discharge port of cavity 1, causing the blocked material to fall down and come into contact with the conveyor belt 6, so that the material can be smoothly transported to the next station.

[0071] In this utility model, the connection is either a fixed connection or a detachable connection. The fixed connection is either a welded connection or a directly machined integral structure, while the detachable connection is either an internal or external threaded connection, a snap-fit ​​connection, or a plug-in structure connection.

[0072] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A self-sealing flexible discharge device, comprising a control circuit (7) and a sensor assembly (5) mounted on the side wall of the device body, characterized in that, The device body includes: The cavity (1) is connected to the discharge port at one end and suspended above the conveyor belt (6) at the other end. Fixed rods (12) are symmetrically arranged on its side wall and are connected to the sensor assembly (5). Insert plate (2), both ends of insert plate (2) are snapped onto the guide rail slider (31) set on the support frame (3), and the middle part is connected to the working end of the rodless cylinder (4). It passes through the pre-set long hole on the cavity (1) to close the material drop port below the cavity (1); The support frame (3) is a rectangular frame structure, which is connected perpendicular to the end face of the cavity (1). Guide rail sliders (31) are provided at both ends of the support frame (3), and the middle part is connected to the fixed end of the rodless cylinder (4). The rodless cylinder (4), sensor assembly (5), conveyor belt (6) and control circuit (7) are connected by electrical signals.

2. The self-sealing flexible discharge device according to claim 1, characterized in that, The cavity (1) includes: Mounting plate (11) is symmetrically arranged on the side wall of cavity (1), and fixing rod (12) is provided on mounting plate (11). A fixed rod (12) is provided with several sensor mounting brackets (121), and a sensor assembly (5) is provided on the sensor mounting brackets (121).

3. The self-sealing flexible discharge device according to claim 2, characterized in that, The sensor assembly (4) includes a high-position sensor (41), a mid-position sensor (42) and a low-position sensor (43), which are installed longitudinally from high to low on the sensor mounting bracket (121) to determine the material accumulation height inside the cavity (1).

4. The self-sealing flexible discharge device according to claim 2, characterized in that, The fixed rod (12) is provided with a sliding groove, and the sensor mounting bracket (121) moves longitudinally in the sliding groove and is fixed to the fixed rod (12) by a limiting member.

5. The self-sealing flexible discharge device according to claim 2, characterized in that, The mounting plate (11) is made of transparent material, which makes it easy for the sensor assembly (5) to determine the material accumulation height inside the cavity (1).

6. The self-sealing flexible discharge device according to claim 5, characterized in that, The cavity (1) further includes: Inspection port (13) is located in the middle of the end face of cavity (1). One side of the inspection port (13) is provided with a handle, and the other side is hinged to cavity (1) for inspection of the inside of cavity (1).

7. The self-sealing flexible discharge device according to claim 1, characterized in that, The conveyor belt (6) is speed-regulated by a speed reduction motor, which is electrically connected to the control circuit.

8. The self-sealing flexible discharge device according to claim 3, characterized in that, The sensor mounting bracket (121) is also equipped with an arc-shaped dust cover to prevent dust and debris from obscuring the sensor assembly (5) and causing incorrect judgment.

9. The self-sealing flexible discharge device according to claim 1, characterized in that, The control circuit (7) is a PLC circuit.

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