Blockage detecting and dredging device for feed opening

Abstract

The utility model discloses a blockage detecting and dredging device for a feed opening. The blockage detecting and dredging device comprises a feed hopper, a feeding mechanism, a detection baffle, a proximity switch, a baffle rotating shaft, a material overflow opening and a vibrator, the feeding mechanism is arranged above the discharging hopper, and the detection baffle, the proximity switch, the baffle rotating shaft, the material overflow opening and the vibrator are arranged outside the discharging hopper. The material overflow port is formed in the lower end of the outer portion of the discharging hopper, the baffle rotating shaft is arranged above the material overflow port, the detection baffle is rotationally connected with the baffle rotating shaft to cover the material overflow port, the proximity switch is arranged at the lower left corner of the material overflow port, and the vibrator is arranged below the material overflow port. A material receiving mechanism is further arranged outside the discharging hopper, and the material receiving mechanism is arranged below the material overflow opening. All the components are arranged outside the discharging hopper, the device cannot be blocked by accumulated materials, material washing is avoided, and the device is safe, reliable and convenient to maintain.

Description

Technical Field

[0001] This utility model relates to the field of detection and unblocking devices, and in particular to a device for detecting and unblocking material blockage at a discharge port. Background Technology

[0002] During the production process, the feeding belt continuously transports materials through the discharge port into the silo. If the discharge port is blocked, the materials will continue to accumulate, leading to an escalation of the accident and a prolonged handling time.

[0003] Prior art: An automatic anti-clogging device for the feed inlet (CN206704958U), such as Figure 1 As shown, it consists of three parts: a detection system, a blockage clearing system, and an alarm system. When material is blocked, the material pushes the movable flap 3, which in turn pushes the guide rod 6. The guide rod 6 then touches the limit switch 4, triggering the blockage alarm at the discharge port, and further activating the vibrator 9 to clear the blockage.

[0004] The structure is complex, and materials tend to accumulate between the movable flap 3 and the hopper wall, causing the movable flap 3 to jam and stop moving; the detection device is installed inside the hopper, and is prone to failure due to long-term material erosion, and is inconvenient to maintain. Utility Model Content

[0005] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of this utility model is to provide a device for detecting and clearing blockages in the discharge port.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a material discharge port blockage detection and unblocking device, including a material discharge hopper, a feeding mechanism, a detection baffle, a proximity switch, a baffle rotating shaft, a material overflow port and a vibrator;

[0007] The feeding mechanism is provided above the hopper, and the detection baffle, the proximity switch, the baffle shaft, the material overflow port and the vibrator are respectively provided on the outside of the hopper;

[0008] The material overflow outlet is located in the lower part of the outside of the hopper, the baffle shaft is located above the material overflow outlet, the detection baffle is rotatably connected to the baffle shaft to cover the material overflow outlet, the proximity switch is located on one side of the lower end of the detection baffle, and the vibrator is located below the material overflow outlet.

[0009] The hopper also includes a receiving mechanism located below the material overflow outlet.

[0010] As a further improvement of this utility model: the receiving mechanism includes a receiving platform, a receiving channel and a receiving bucket. The receiving port of the receiving platform is provided with a first buckle. The receiving port of the receiving platform is detachably connected to the material overflow port through the first buckle. The material outlet of the receiving platform is fixedly connected to the first end of the receiving channel. The second end of the receiving channel is provided with a second buckle. The second end of the receiving channel is detachably connected to the receiving bucket through the second buckle.

[0011] Furthermore, the buckle is configured in a semi-arched shape.

[0012] As a further improvement of this utility model: the top of the receiving bucket is open, a detection port is provided on one side of the top opening of the receiving bucket, the bottom of the receiving bucket is closed, and the wall thickness of the receiving bucket is the same as the width of the semi-arched buckle.

[0013] As a further improvement of this utility model: the first end of the receiving channel is higher than the second end of the receiving channel, and the receiving channel forms an inclined surface.

[0014] As a further improvement of this utility model: the sensing head of the proximity switch is located on one side of the detection baffle.

[0015] As a further improvement of this utility model: both ends of the baffle shaft are also provided with fixing members, one end of the fixing member is fixedly connected to the outside of the hopper, and the other end of the fixing member is connected to the baffle shaft.

[0016] As a further improvement of this utility model: one end of the detection baffle is provided with a hollow tube, one end of the detection baffle is rotatably connected to the baffle shaft through the hollow tube, and the other end of the detection baffle blocks the material overflow port.

[0017] As a further improvement of this utility model: the upper left end of the hopper is inclined outward, the lower left end of the hopper is vertical, the right side of the hopper is vertical, the left and right sides of the hopper are welded and sealed to the front and rear sides, and the upper left end of the hopper passes over the feeding mechanism.

[0018] As a further improvement of this utility model: a control system is also provided outside the hopper. The control system is located above the baffle shaft and is connected to the proximity switch, vibrator and feeding mechanism respectively via power lines.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] The feed inlet is set vertically, and all components are placed outside the feed inlet to prevent them from being blocked by accumulated material. When material blockage occurs, the control system starts the vibrator to clear the material and simultaneously issues an alarm to notify personnel to handle the situation. This prevents material from being washed away, ensuring safety, reliability, and easy maintenance of the device. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of an existing anti-clogging device.

[0022] Figure 2 This is a schematic diagram of the structure of this utility model in the normal feeding state.

[0023] Figure 3 This is a schematic diagram of the structure of this utility model in the state of material blockage at the feed port.

[0024] Figure 4 This is a schematic diagram of the operating structure of this utility model.

[0025] Figure 5 This is a schematic diagram of the connection mechanism of this utility model.

[0026] Figure 6 Schematic diagram of the control system of this utility model.

[0027] Figure descriptions: 1. Material; 2. Feeding mechanism; 3. Baffle shaft; 4. Detection baffle; 5. Proximity switch; 6. Vibrator; 7. Material overflow outlet; 8. Receiving mechanism; 81. Receiving platform; 811. Receiving port; 812. Discharge port; 813. First latch; 82. Receiving channel; 821. Second latch; 83. Receiving bucket; 9. Control system. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0029] It should be noted that the terms "comprising," "having," and "front, back, left, and right sides" and any variations thereof in the specification, claims, and accompanying drawings of this utility model are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to these processes, methods, products, or devices.

[0030] The terms "first" or "second," etc., used in this utility model to refer to numbers or ordinal numbers are for descriptive purposes only and should not be construed as indicating relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features.

[0031] In order to solve the technical problems in the prior art, the present invention will be further described in conjunction with the accompanying drawings and embodiments:

[0032] like Figure 2-5 As shown in the figure, this utility model embodiment discloses a material discharge port blockage detection and unblocking device, including a discharge hopper 1, a feeding mechanism 2, a detection baffle 4, a proximity switch 5, a baffle rotating shaft 3, a material overflow port 7, and a vibrator 6; the feeding mechanism 2 is provided above the discharge hopper 1, and the detection baffle 4, proximity switch 5, baffle rotating shaft 3, material overflow port 7, and vibrator 6 are respectively provided on the outside of the discharge hopper 1; the material overflow port 7 is located at the lower end of the outside of the discharge hopper 1, the baffle rotating shaft 3 is located above the material overflow port 7, the detection baffle 4 is rotatably connected to the baffle rotating shaft 3 to cover the material overflow port 7, the proximity switch 5 is located on one side of the lower end of the detection baffle 4, and the vibrator 6 is located below the material overflow port 7; the discharge hopper 1 also includes a material receiving mechanism 8, which is located below the material overflow port 7.

[0033] Furthermore, the detection baffle 4 is at least one of a metal baffle, a PVC baffle, and a plastic baffle.

[0034] Furthermore, the proximity switch 5 is at least one of a photoelectric proximity switch, a light sensor, and an ultrasonic sensor.

[0035] The feeding mechanism 2 is at least one of the following: servo feeding mechanism, motor feeding mechanism and belt feeding mechanism. Belt feeding mechanism is preferred because it can transport a larger amount of material and has a faster conveying speed.

[0036] Furthermore, the conveyor belt on the belt feeding mechanism is at least one of the following: flat belt, trough belt, skirted belt, and U-groove belt. U-groove belt is preferred for feeding. The conveyor belt is U-shaped, which provides better containment and conveying stability of the material and can prevent the material from overflowing and spilling during the conveying process.

[0037] The receiving mechanism 8 includes a receiving platform 81, a receiving channel 82, and a receiving bucket 83. The receiving port of the receiving platform 81 is provided with a first buckle 811. The receiving port of the receiving platform 81 is detachably connected to the material overflow port 7 through the first buckle 811. The discharge port of the receiving platform 81 is fixedly connected to the first end of the receiving channel 82. The second end of the receiving channel 82 is provided with a second buckle 821. The second end of the receiving channel 82 is detachably connected to the receiving bucket 83 through the second buckle 821.

[0038] At this time, the proximity switch 5 is blocked on the outer side of the receiving platform 81, and the proximity switch 5 cannot sense the signal. In order to solve the above problem, a detection port larger than the proximity switch 5 is opened on one side of the receiving platform 81. At this time, the proximity switch 5 is not blocked. When the material pushes open the detection baffle 4, the sensing head of the proximity switch 5 can detect the signal.

[0039] Furthermore, the first clip 813 and the second clip 821 are at least one of L-shaped clips, U-shaped clips, and semi-arched clips. The L-shaped clip is easy to position; its downward-facing vertical end can be quickly installed onto the material overflow port 7, with both sides of the receiving platform 81 just touching the outside of the hopper 1. Disassembly can be done by simply pulling up the detection baffle 4. The U-shaped clip has the same inner width as the thickness of the material overflow port 7 and the wall thickness of the receiving hopper, increasing stability. The semi-arched clip has the same inner width as the thickness of the material overflow port 7 and the wall thickness of the receiving hopper; its shape has a certain degree of elasticity and curvature, providing cushioning and shock absorption when the vibrator 6 vibrates, resulting in even higher stability.

[0040] The first end of the receiving channel 82 is higher than the second end of the receiving channel 82, forming an inclined surface. Because the channel is inclined, the material can fall downwards by its own gravity without the need for external force, saving energy and simplifying the structure.

[0041] Furthermore, the receiving channel 82 is at least one of a U-shaped channel, an O-shaped channel, and a straight channel. Because the sides of the U-shaped channel are high, the O-shaped channel is a pipe, and the sides of the straight channel are higher than the plane, when the material flows into the receiving channel 82, the material will not overflow outside the channel.

[0042] Furthermore, the receiving platform 81 and the receiving channel 82 are made of at least one of PVC, metal sheet and plastic, with metal sheet preferred.

[0043] The top of the receiving bucket 83 is open, and a detection port is provided on one side of the top opening of the receiving bucket 83 to prevent obstruction of the normal operation of the proximity switch 5. The bottom of the receiving bucket 83 is closed, and the wall thickness of the receiving bucket 83 is the same as the inner width of the second semi-arched buckle 821, so that the two fit together more securely.

[0044] Furthermore, the receiving hopper 83 is at least one of a round hopper, a square hopper, or a polygonal hopper, with a round hopper being preferred for ease of handling.

[0045] Furthermore, the receiving bucket 83 is made of at least one of PVC, metal and plastic materials, preferably PVC, which is lightweight and can reduce weight during handling.

[0046] The baffle shaft 3 is also equipped with fixing parts at both ends. One end of the fixing part is fixedly connected to the outside of the hopper 1, and the other end of the fixing part is connected to the baffle shaft 3 to improve the stability of the baffle shaft 3.

[0047] Furthermore, the baffle shaft 3 is configured as a pin, with a locking head at one end and a through-hole at the other end, into which a limiting block is inserted for fixation. This facilitates easy replacement of the baffle shaft 3 and the detection baffle 4 when worn during maintenance.

[0048] The detection baffle 4 has a hollow tube at one end. During installation, after the baffle shaft 3 is inserted into the first fixing piece, it passes through the detection baffle 4 and is then inserted into the second fixing piece. The limiting block is inserted into the limiting hole for fixation. At this time, one end of the detection baffle 4 is rotatably connected to the baffle shaft 3 through the hollow tube, and the other end of the detection baffle 4 vertically downwards blocks the material overflow outlet 7.

[0049] To better receive materials, the upper left side of the hopper 1 is tilted outward, the lower left side of the hopper 1 is vertical, the right side of the hopper 1 is vertical, the left and right sides of the hopper 1 are welded and sealed to the front and rear sides, and the upper right side of the hopper 1 is higher than the feeding mechanism 2.

[0050] Furthermore, the hopper 1 is at least one of a conical hopper, a square hopper, and a trapezoidal hopper, preferably a trapezoidal hopper. The left side of the hopper 1 is inclined, and the left side of the hopper 1 is lower than the right side. Since the feeding mechanism 2 is located above the left side of the hopper 1, when the material is conveyed from the feeding mechanism 2, the right side of the hopper 1 will block the material from flying out, thus avoiding accidents.

[0051] Furthermore, the hopper 1 is made of at least one of steel plate, iron plate and PVC plate, with iron plate sheet metal being preferred. The hopper 1 made of metal plate is more stable and durable.

[0052] To better detect and control the device, a control system 9 is also installed outside the hopper 1. The control system 9 is located above the baffle shaft 3 and is connected to the proximity switch 5, the vibrator 6 and the feeding mechanism 2 via power lines.

[0053] Furthermore, the control system 9 is at least one of the following: PLC system, PAC system, RTU system, and IED system. PLC system is preferred because it is easy to operate and has low cost.

[0054] In actual use, the normal state is as follows: Figure 2 As shown, when there is no blockage at the discharge port, the detection baffle 4 adheres tightly to the hopper wall and covers the material overflow port 7 under its own gravity. The sensor head of the proximity switch 5 has no sensing signal, and the vibrator 6 does not run at this time.

[0055] Abnormal state such as Figure 3As shown, when the feed inlet is blocked, if too much material overflows from the overflow outlet 7, it will push open the detection baffle 4. After the detection baffle 4 is pushed open, its lower end passes through the sensing head of the proximity switch 5. At this time, the proximity switch 5 senses the blockage signal and transmits it to the PLC system 9. The PLC system 9 issues a blockage alarm, reminding the staff to check the site. At the same time, the PLC system 9 sends a running signal to the vibrator 6, which starts and vibrates to clear the blockage. Material overflows from material overflow outlet 7 after vibration, and is caught at the receiving port of receiving platform 81. The material flows through the outlet of receiving platform 81 to receiving channel 82, and then into receiving bucket 83. Simultaneously, PLC system 9 starts a pre-set material blockage timer. Within the set time, if the blockage is cleared by the vibration of vibrator 6, check that baffle 4 has reset, the proximity switch 5 has no sensing signal, PLC system 9 resets the timer to zero, vibrator 6 stops running, the blockage alarm stops, and the system returns to normal. If the blockage is not cleared within the set time, PLC system 9 sends a stop signal to feeding mechanism 2, feeding mechanism 2 stops running, the blockage alarm continues to sound to notify personnel to handle the situation, and vibrator 6 does not stop running. This prevents operational accidents from escalating, such as scratching the conveyor belt of feeding mechanism 2 or material overflow.

[0056] In summary, any other corresponding modifications made by those skilled in the art after reading this utility model document, based on the technical solution and concept of this utility model without creative mental effort, shall all fall within the scope of protection of this utility model.

Claims

1. A device for detecting and clearing blockages at a discharge port, characterized in that, Includes a hopper, feeding mechanism, detection baffle, proximity switch, baffle shaft, material overflow outlet and vibrator; The feeding mechanism is provided above the hopper, and the detection baffle, the proximity switch, the baffle shaft, the material overflow port and the vibrator are respectively provided on the outside of the hopper; The material overflow outlet is located at the lower end of the outside of the hopper, the baffle shaft is located above the material overflow outlet, the detection baffle is rotatably connected to the baffle shaft to cover the material overflow outlet, the proximity switch is located on one side of the lower end of the detection baffle, and the vibrator is located below the material overflow outlet; The hopper also includes a receiving mechanism located below the material overflow outlet.

2. The material discharge port blockage detection and unblocking device according to claim 1, characterized in that, The receiving mechanism includes a receiving platform, a receiving channel, and a receiving bucket. The receiving port of the receiving platform is provided with a first buckle, and the receiving port of the receiving platform is detachably connected to the material overflow port through the first buckle. The material outlet of the receiving platform is fixedly connected to the first end of the receiving channel. The second end of the receiving channel is provided with a second buckle, and the second end of the receiving channel is detachably connected to the receiving bucket through the second buckle.

3. The material discharge port blockage detection and unblocking device according to claim 2, characterized in that, The buckle is a semi-arched buckle.

4. The material discharge port blockage detection and unblocking device according to claim 3, characterized in that, The receiving bucket has an opening at the top, a detection port is provided on one side of the opening at the top, the bottom of the receiving bucket is closed, and the wall thickness of the receiving bucket is the same as the width of the semi-arched buckle.

5. The material discharge port blockage detection and unblocking device according to claim 2, characterized in that, The first end of the receiving channel is higher than the second end of the receiving channel, and the receiving channel forms an inclined surface.

6. The material discharge port blockage detection and unblocking device according to claim 1, characterized in that, The proximity switch's sensing head is positioned on one side of the detection baffle.

7. The material discharge port blockage detection and unblocking device according to claim 1, characterized in that, The baffle shaft is also provided with fixing parts at both ends. One end of the fixing part is fixedly connected to the outside of the hopper, and the other end of the fixing part is connected to the baffle shaft.

8. The material discharge port blockage detection and unblocking device according to claim 1, characterized in that, One end of the detection baffle is provided with a hollow tube, and one end of the detection baffle is rotatably connected to the baffle shaft through the hollow tube. The other end of the detection baffle blocks the material overflow port.

9. The material discharge port blockage detection and unblocking device according to claim 1, characterized in that, The upper left end of the hopper is inclined outward, the lower left end of the hopper is vertical, the right side of the hopper is vertical, the left and right sides of the hopper are connected to the front and rear sides, and the upper left end of the hopper passes over the feeding mechanism.

10. The material discharge port blockage detection and unblocking device according to claim 1, characterized in that, The hopper is also equipped with a control system, which is located above the baffle shaft. The control system is connected to the proximity switch, vibrator and feeding mechanism via power lines.

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