A rope end catcher and pneumatic conveying device

Abstract

The utility model provides a kind of rope head catcher and pneumatic conveying device, belong to automatic unpacking technical field, including tank body and screening assembly.The upper portion of tank body is provided with feed inlet, and the lower portion of tank body is provided with discharge port, feed inlet and discharge port are respectively used to connect pneumatic conveying pipeline, to form the pneumatic transmission path from top to bottom in the inner chamber of tank body;Screening assembly is set in the inner chamber of tank body and is located between feed inlet and discharge port, and screening assembly includes first screen and second screen, first screen is inclined along first direction from top to bottom, and second screen is inclined along second direction from top to bottom, and first direction and second direction are opposite;Material is along pneumatic transmission path and passes through screening assembly, to screen rope head or chippings by first screen and second screen.The utility model provides a kind of rope head catcher, improves the capture rate of rope head and chippings, improves impurity screening efficiency, guarantees the continuity and stability of production, and reduces maintenance cost.

Description

Technical Field

[0001] This utility model belongs to the field of automatic unpacking technology, and more specifically, it relates to a rope end catcher and a pneumatic conveying device. Background Technology

[0002] Currently, the automatic unpacking industry generally uses a cutter to cut open the outer packaging of bulk materials, allowing the materials to be collected in a buffer silo, and then transported to the batching tank via a pneumatic conveying device.

[0003] However, when cutting open the outer packaging, it is unavoidable to remove woven bag scraps, rope ends, and other thin, long debris. This causes these scraps, rope ends, and other impurities to enter the mixing tank along with the materials, seriously affecting the quality of food, pharmaceutical, and chemical products. They can easily entangle and clog filters, screens, and other equipment, leading to production downtime and increased maintenance costs. Utility Model Content

[0004] The purpose of this utility model is to provide a rope end catcher, which aims to solve the problem that debris and rope ends and other impurities enter the batching tank together with the materials, seriously affecting product quality, and easily entangle and clog filters, screens and other equipment, leading to production downtime and increased maintenance costs.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a rope end catcher, comprising: The tank body has an inlet at the top and an outlet at the bottom. The inlet and outlet are respectively used to connect to pneumatic conveying pipes to form a top-to-bottom pneumatic transmission path inside the tank body. A screening assembly is disposed in the inner cavity of the tank and located between the inlet and the outlet. The screening assembly includes a first screen and a second screen arranged sequentially from top to bottom. The first screen is inclined from top to bottom along a first direction, and the second screen is inclined from top to bottom along a second direction. The first direction and the second direction are opposite. The material passes through the screening assembly along the pneumatic conveying path to screen rope ends or debris through the first screen and the second screen.

[0006] In one possible implementation, the tilt angle of the first screen and the tilt angle of the second screen are adjustable.

[0007] In one possible implementation, the lower end of the first screen is connected to the upper end of the second screen.

[0008] In one possible implementation, the feed inlet is located on the upper part of the side wall of the tank, and the discharge outlet is located on the lower part of the side wall of the tank. The feed inlet and the discharge outlet are located on the left and right sides of the tank, respectively, and are both perpendicular to the axial direction of the tank.

[0009] In one possible implementation, the feed inlet is tangentially connected to the chamber located above the first screen in the inner cavity of the tank, and the discharge outlet is tangentially connected to the chamber located below the second screen in the inner cavity of the tank.

[0010] In one possible implementation, both the first screen and the second screen are circumferentially sealed and installed on the inner wall of the tank.

[0011] In one possible implementation, an end cap is detachably mounted on the upper end of the tank.

[0012] In one possible implementation, a viewing mirror is provided on the end cap.

[0013] In one possible implementation, the tank is a cylindrical structure, and both the first screen and the second screen are elliptical disk structures.

[0014] The beneficial effects of the rope end catcher provided by this utility model are as follows: Compared with the prior art, the first and second screens in the screening assembly are inclined in opposite directions, allowing the material to fully contact the first and second screens during pneumatic transmission. When the material passes through the first screen from top to bottom, the screen inclined in the first direction guides and intercepts the material, initially trapping larger rope ends or debris. The material then continues to fall to the second screen, where the screen inclined in the opposite second direction further intercepts impurities not trapped by the first screen, effectively forming a dual screening mechanism. This significantly improves the capture rate of rope ends and debris, reduces the possibility of impurities entering subsequent stages with the material, and significantly improves impurity screening efficiency. Since most rope ends and debris are intercepted in the tank by the screening assembly, these impurities are prevented from entering the batching tank and entangled in filters, screens, and other equipment. This reduces the probability of equipment malfunction due to impurity blockage or entanglement, reduces production downtime caused by equipment failure, effectively protects downstream equipment, ensures production continuity and stability, and reduces maintenance costs.

[0015] This utility model also provides a pneumatic conveying device, including the aforementioned rope end catcher.

[0016] The beneficial effects of the pneumatic conveying device provided by this utility model are as follows: Compared with the prior art, the above-mentioned rope end catcher is installed on the pneumatic conveying pipeline of the pneumatic conveying device. The material mixed with debris and rope ends is conveyed through the pneumatic conveying pipeline. When the material passes through the tank, the material first contacts the first screen, so that the larger rope ends or debris are initially intercepted. Then the material continues to fall to the second screen. The screen inclined in the opposite second direction can intercept the impurities that were not intercepted by the first screen again, which is equivalent to forming a double screening mechanism. This greatly improves the capture rate of rope ends and debris, reduces the possibility of impurities entering the subsequent stages with the material, and significantly improves the impurity screening efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A front view of a rope end catcher provided by this utility model; Figure 2 A side view of a rope end catcher provided by this utility model.

[0019] In the diagram: 1. Tank body; 2. Inlet; 3. Outlet; 4. First screen; 5. Second screen; 6. Sight glass; 7. Clamp. Detailed Implementation

[0020] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0021] Unless otherwise explicitly specified, the use of terms such as "first," "second," or "third" is intended to distinguish different objects, not to describe a specific order.

[0022] Unless otherwise expressly defined, the use of directional terms such as “center,” “lateral,” “longitudinal,” “horizontal,” “vertical,” “top,” “bottom,” “inner,” “outer,” “upper,” “lower,” “front,” “back,” “left,” “right,” “clockwise,” “counterclockwise,” “high,” and “low” to indicate orientation or positional relationships is based on the orientation and positional relationships shown in the accompanying drawings and is only for the convenience of describing the present invention and simplifying the description. It is not intended to indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the specific protection scope of the present invention.

[0023] Please see Figure 1 and Figure 2 The present invention provides a rope end catcher. A rope end catcher includes a tank 1 and a screening assembly. The upper part of the tank 1 has an inlet 2, and the lower part has an outlet 3. The inlet 2 and outlet 3 are respectively used to connect to pneumatic conveying pipes to form a top-to-bottom pneumatic transmission path within the inner cavity of the tank 1. The screening assembly is disposed within the inner cavity of the tank 1 and located between the inlet 2 and outlet 3. The screening assembly includes a first screen 4 and a second screen 5 arranged sequentially from top to bottom. The first screen 4 is inclined from top to bottom along a first direction, and the second screen 5 is inclined from top to bottom along a second direction, with the first and second directions being opposite. The material passes through the screening assembly along the pneumatic transmission path to screen rope ends or debris through the first screen 4 and the second screen 5.

[0024] This utility model provides a rope end catcher. Compared with the prior art, the first screen 4 and the second screen 5 in the screening component are inclined in opposite directions, allowing the material to fully contact the first screen 4 and the second screen 5 during pneumatic transmission. When the material passes through the first screen 4 from top to bottom, the screen inclined in the first direction guides and intercepts the material, initially trapping larger rope ends or debris. Subsequently, the material continues to fall to the second screen 5, where the screen inclined in the opposite second direction can intercept impurities that were not trapped by the first screen 4 again. This is equivalent to forming a dual screening mechanism, which greatly improves the capture rate of rope ends and debris, reduces the possibility of impurities entering subsequent stages with the material, and significantly improves the impurity screening efficiency. Since most of the rope ends and debris are intercepted inside tank 1 by the screening components, these impurities are prevented from entering the batching tank and entangled in the filters, screens and other equipment. This reduces the probability of equipment failure due to blockage or entanglement by impurities, reduces the number of production downtimes caused by equipment failure, effectively protects downstream equipment, ensures the continuity and stability of production, and reduces the impact of impurities on the product.

[0025] Preferably, the tilt angles of the first screen 4 and the second screen 5 are adjustable, forming a double interception structure. This ensures that the material is in full contact with both screens, improving the screening efficiency of rope ends and debris, and reducing local accumulation. Simultaneously, effectively intercepted impurities prevent them from entering subsequent equipment, reducing the risk of blockages and entanglement, minimizing downtime and maintenance costs, and reducing the impact of impurities on the product.

[0026] Specifically, when adjusting the tilt angle of the first screen 4 and the second screen 5, since screens with different tilt angles have different cross-sectional shapes, it is necessary to replace them with screens of different shapes to adjust the angle. Different tilt angles can be used to screen different types of materials. When processing materials with larger particles and irregular shapes, the first screen 4 and the second screen 5 can be adjusted to a larger tilt angle. This allows the larger screen cross-sectional area to make the material roll and slide quickly on the screen, thus screening out particles that meet the requirements more efficiently. For some fine and easily sticky materials, a smaller tilt angle is more suitable. The smaller cross-sectional shape allows the material to pass through the screen more smoothly, avoiding material blockage of the screen holes and ensuring the accuracy and smoothness of screening. By flexibly adjusting the tilt angle of the screens in this way, the screening needs of different materials in various production scenarios can be met, improving production efficiency and product quality.

[0027] In this design, the lower end of the first screen 4 is connected to the upper end of the second screen 5, forming a continuous V-shaped screening structure within the inner cavity of the tank 1. The two screens are seamlessly connected, creating a continuous, zigzag screening path. After entering the tank 1 through the inlet 2, the material first contacts the first screen 4 along the pneumatic transmission path. Guided by the inclination of the first screen 4, it flows to the lower end and then directly enters the upper end of the connected second screen 5, continuing to flow along the inclination direction of the second screen 5 before finally moving towards the outlet 3. This structure prevents material from stagnating or accumulating between the two screens, ensuring smooth passage of the material through the screening components and reducing screening efficiency loss or blockage within the inner cavity of the tank 1 caused by material accumulation. Furthermore, the material makes more thorough contact and collision with the screens in the continuous zigzag path, especially at the connection point between the two screens, making it easier to intercept and capture impurities, further improving the screening accuracy and capture rate for impurities such as rope ends and debris.

[0028] Specifically, the feed inlet 2 is located on the upper part of the side wall of the tank 1, and the discharge outlet 3 is located on the lower part of the side wall of the tank 1. The feed inlet 2 and the discharge outlet 3 are located on the left and right sides of the tank 1 respectively and are perpendicular to the axial direction of the tank 1, thus forming a laterally staggered pneumatic transmission path. This structure requires the material to change its flow direction after entering the tank 1, prolonging the residence time in the tank, increasing the contact opportunity with the screening components, and improving the screening effect of impurities. At the same time, the laterally staggered layout can prevent the material from directly impacting the discharge outlet 3, reducing the direct discharge of material that has not been fully screened, further intercepting rope ends and debris, and reducing the risk of subsequent equipment blockage.

[0029] Preferably, the inlet 2 is tangentially connected to the chamber above the first screen 4 within the inner cavity of the tank 1, and the outlet 3 is tangentially connected to the chamber below the second screen 5 within the inner cavity of the tank 1. This allows the material to form a rotating airflow within the tank 1. When the material enters tangentially from the inlet 2, it moves in a circular motion along the inner wall of the tank 1, generating centrifugal force. This causes heavier rope ends and debris to be thrown towards the inner wall, making it easier for them to contact and be trapped by the first screen 4. The rotating airflow also prolongs the residence time of the material above the first screen 4, improving the initial screening efficiency. The tangential setting of the lower outlet 3 guides the material screened by the second screen 5 to continue rotating, further separating residual impurities, while preventing material from accumulating near the outlet 3, ensuring smooth discharge. This design, by enhancing the contact and separation effect between the material and the screen, can remove impurities more efficiently.

[0030] The first screen 4 and the second screen 5 are both circumferentially sealed to the inner wall of the tank 1. The seal between the first screen 4 and the second screen 5 and the inner wall of the tank 1 can be achieved through sealing rings, welding, or tight fitting, ensuring that materials cannot pass directly through the gap between the screen edge and the tank 1. The upper chamber of the first screen 4, the chamber between the first screen 4 and the second screen 5, and the lower chamber of the second screen 5 all form independent closed spaces, which can prevent materials from leaking directly through the gaps without being screened by the screens. This ensures that all materials must pass through the first screen 4 and the second screen 5, thereby forcibly improving the thoroughness of screening and preventing impurities such as rope ends and debris from bypassing the screens and entering subsequent stages.

[0031] Specifically, the upper end of the tank 1 is detachably fitted with an end cap, allowing operators to directly open the end cap to easily access the first screen 4 and the second screen 5 inside. This facilitates screen cleaning, replacement, or troubleshooting, reducing the difficulty and time cost of disassembly and assembly during maintenance. The end cap is detachably installed on the upper end of the tank 1 via clamps 7.

[0032] Preferably, the end cap is equipped with a sight glass 6, providing operators with a convenient way to observe the working status of the first screen 4 and the second screen 5 inside the tank 1 without opening the end cap. This includes the distribution of materials on the screens, whether there is any blockage or damage, and the amount of impurities retained. This not only reduces production interruptions and the impact on sealing performance caused by frequent opening of the end cap for inspection, but also helps operators to promptly detect abnormalities and take corrective measures, ensuring the continuity and stability of the screening process.

[0033] Specifically, the tank body 1 is a cylindrical structure, and the first screen 4 and the second screen 5 are both elliptical disk structures, ensuring that when the screen is in an inclined state, it can adapt to the sealing connection inside the tank body 1 and ensure that its outer wall fits the inner circumferential wall of the tank body 1.

[0034] Based on the same inventive concept, this utility model also provides a pneumatic conveying device. The aforementioned rope end catcher is installed in a pneumatic conveying pipeline. Material mixed with debris and rope ends is conveyed through the pneumatic conveying pipeline. When the material passes through the tank 1, the material first contacts the first screen 4, causing larger rope ends or debris to be initially intercepted. Subsequently, the material continues to fall to the second screen 5. The screen, which is inclined in the opposite second direction, can intercept impurities that were not intercepted by the first screen 4 again, which is equivalent to forming a double screening mechanism. This greatly improves the capture rate of rope ends and debris, reduces the possibility of impurities entering subsequent stages with the material, and significantly improves the impurity screening efficiency.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rope end catcher, characterized in that, include: Tank (1), with an inlet (2) at the top and an outlet (3) at the bottom, the inlet (2) and the outlet (3) are respectively used to connect to pneumatic conveying pipes to form a pneumatic transmission path from top to bottom in the inner cavity of the tank (1); A screening assembly is disposed in the inner cavity of the tank (1) and located between the feed inlet (2) and the discharge outlet (3). The screening assembly includes a first screen (4) and a second screen (5) arranged sequentially from top to bottom. The first screen (4) is inclined from top to bottom along a first direction, and the second screen (5) is inclined from top to bottom along a second direction. The first direction and the second direction are opposite. The material passes through the screening assembly along the pneumatic transmission path to screen rope ends or debris through the first screen (4) and the second screen (5).

2. The rope end catcher as described in claim 1, characterized in that, The tilt angle of the first screen (4) and the tilt angle of the second screen (5) are adjustable.

3. A rope end catcher as described in claim 1, characterized in that, The lower end of the first screen (4) is connected to the upper end of the second screen (5).

4. A rope end catcher as described in claim 1, characterized in that, The feed inlet (2) is located on the upper part of the side wall of the tank (1), and the discharge outlet (3) is located on the lower part of the side wall of the tank (1). The feed inlet (2) and the discharge outlet (3) are located on the left and right sides of the tank (1) respectively and are both perpendicular to the axial direction of the tank (1).

5. A rope end catcher as described in claim 4, characterized in that, The feed inlet (2) is tangentially connected to the inner cavity of the tank body (1) located above the first screen (4), and the discharge outlet (3) is tangentially connected to the inner cavity of the tank body (1) located below the second screen (5).

6. A rope end catcher as described in claim 1, characterized in that, Both the first screen (4) and the second screen (5) are circumferentially sealed and installed on the inner wall of the tank (1).

7. A rope end catcher as described in claim 1, characterized in that, The upper end of the tank (1) is detachably fitted with an end cap.

8. A rope end catcher as described in claim 7, characterized in that, A sight glass (6) is provided on the end cap.

9. A rope end catcher as described in claim 1, characterized in that, The tank (1) is a cylindrical structure, and the first screen (4) and the second screen (5) are both elliptical disk structures.

10. A pneumatic conveying device, characterized in that, Includes the rope end catcher as described in any one of claims 1-9.

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