Dust extrusion mechanism, dust discharge mechanism with dust extrusion mechanism and dust remover with dust extrusion mechanism

Abstract

The utility model relates to the field of dust collection machinery, in particular to a dust extrusion mechanism, a dust discharge mechanism with the dust extrusion mechanism and a dust remover with the dust extrusion mechanism. A dust extrusion mechanism comprises an end cover, a mounting seat and an end cover driver, the end cover is mounted on the mounting seat, the end cover driver drives the end cover to movably cover a discharge port or open the discharge port, and after the discharge port is covered, the extrusion force of an extrusion auger on materials is increased, so that the materials are extruded into blocks. The dust discharge mechanism comprises the dust extrusion mechanism and a dust collection barrel fixed on a support, the dust collection barrel is provided with a feed opening, and the feed opening is communicated with the feed opening. The utility model further discloses the dust remover with the dust extrusion mechanism. The extrusion degree of the dust is adjusted, so that the dust is extruded into blocks to be discharged, and secondary pollution to the environment due to the fact that the dust is sprayed out of the discharge port and diffused into the surrounding environment due to pressure is avoided or reduced.

Description

Technical Field

[0001] The utility model relates to the field of dust collecting machinery, in particular to a dust squeezing mechanism and a dust discharging mechanism and a dust collector equipped with the same. Background Art

[0002] With the requirements of environmental protection and the emphasis on industrial working environment, industrial dust collectors are generally installed in manufacturing plants. Industrial dust collectors are also known as industrial dust collectors. Industrial dust collectors are industrial dust collection equipment used for industrial purposes to collect and absorb medium particles, dust smoke, oil and water generated during production, operation, and transportation. For manufacturing industries that produce waste particles or fiber materials and other waste materials, the dust output is relatively large, and it is necessary to install a dust discharge mechanism at the tail end of the dust collector to collect and process the dust handled by the dust collector. The applicant has continuously developed and improved the dust collector.

[0003] Since the product ingredients of each manufacturer's production line are different, the waste dust generated is also different. The existing extrusion device of the dust discharge mechanism can squeeze about 80% of the waste dust of the production line into blocks; but there are still about 20% of the waste dust of the production line, due to too much polymer content, the existing extrusion device is difficult to squeeze it into blocks, and it is still loose and not conducive to collection.

[0004] And because the cyclone barrel of some dust-exhausting mechanisms is connected to the flat-bottom barrel and the dust collector box, the pressure inside the dust collector is about 1KPa higher than the atmospheric pressure, and the pressure passes through the cyclone barrel and the flat-bottom barrel to the extrusion head. Since the dust cannot be squeezed into blocks, it is still loose, so the dust is blown out of the extrusion head, causing dust spraying, and then the entire dust removal room is filled with dust. Utility Model Content

[0005] In response to at least one of the above problems, the utility model provides a dust extrusion mechanism, which can adapt to different types of dust and extrude the dust into blocks for discharge, thereby greatly improving the adaptability and working stability of the extrusion device and reducing or avoiding the occurrence of powder spraying. At the same time, the utility model also provides a dust discharge mechanism, which can adapt to a larger internal working pressure, greatly improve the dust suction efficiency of the fan and increase the service life of the fan. In addition, the utility model also provides a dust collector with efficient and stable dust discharge.

[0006] The technical solution adopted by the utility model is:

[0007] A dust extrusion mechanism comprises a bracket, an auger shell and an extrusion auger installed in the auger shell, a feed port is arranged on one side of the auger shell, and a discharge port is arranged on one end of the auger shell, materials enter the auger shell from the feed port, and are discharged from the discharge port after being extruded by the extrusion auger. The mechanism comprises an end cover, a mounting seat and an end cover drive, the end cover is mounted on the mounting seat, and the end cover drive drives the end cover to move and cover the discharge port or open it, and when the discharge port is covered, the extrusion force of the extrusion auger on the material is increased, so that the material is extruded into blocks.

[0008] The invention adjusts the degree of dust extrusion by opening and closing the end cover, so that the dust is extruded into blocks for discharge, thereby avoiding or reducing the secondary pollution to the environment caused by the dust spraying out from the discharge port and spreading into the surrounding environment due to pressure reasons.

[0009] Preferably, the end cover drive includes a piston rod and a piston cylinder, the end cover includes a cover body and a driving handle, one end of the driving handle is fixed to the cover body, and the other end is hinged to the piston rod or the piston cylinder, the two ends of the driving handle are hinged and fixed on the mounting seat, and the piston rod pushes or pulls the driving handle to rotate around the mounting seat.

[0010] The novel device can quickly and stably control the opening and closing of the end cover through a piston rod type linear push-pull mechanism, and the control scheme is simple.

[0011] Preferably, the cover body has a gap behind the discharge port, the mounting seat is fixed on the bracket or the discharge end of the dragon shell, the end cover is driven by a cylinder, a hydraulic cylinder or an electric cylinder, the cylinder body is installed on the bracket, and the piston rod is hingedly connected to one end of the driving handle.

[0012] The utility model can drive the end cover to move quickly through the hinged connection between the piston rod and the driving handle, and will not be stuck.

[0013] Preferably, a sensor is included, which senses the twisting force of the extrusion auger and controls the driving action of the end cover to close or open the discharge port.

[0014] The utility model detects the force of the extrusion auger through a sensor, converts the force into an electrical signal, transmits it to a controller such as a PLC, MCU, etc., and controls the end cover driving action. The control logic of the utility model is that when the twisting force is large, that is, the dust can be pressed into a block, the end cover is opened; when the twisting force is small, the end cover is closed to block the dust from being discharged, and the extrusion auger is used to squeeze the dust into a block. When the twisting force is large, the end cover is opened and the dust is discharged in blocks. The sensor can sense various signals, including force, current, etc.

[0015] Preferably, the extrusion auger includes a rotating shaft, the rotating shaft includes a driving part and a conveying part, the conveying part is provided with a spiral blade, the spiral blade is located in the auger shell, the driving part is exposed from the auger shell, and the material is conveyed to the discharge port under the rotation of the rotating shaft, the driving part is connected to the motor transmission, and a sensor is provided at the end of the driving part for detecting the axial pressure of the rotating shaft.

[0016] The utility model detects the working pressure of the extrusion auger through a pressure sensor, which is accurate and efficient, has a simple structure and is low in cost.

[0017] Preferably, the sensor is a pressure sensor fixed on the bracket, the end of the rotating shaft abuts against the sensor, and the axial movement of the rotating shaft transmits pressure so that the sensor generates a pressure signal.

[0018] Preferably, the end of the rotating shaft is fixed to the bracket by a plane bearing. The rotating shaft moves toward the sensor under the push of the reaction force generated by the extruded dust and presses against one side of the sensor. The pressure sensor is fixed to the bracket by a fixing seat, including a fixing cover, on which a pressure adjusting device is provided, and the pressure adjusting device presses against the other side of the pressure sensor.

[0019] In the utility model, the end of the rotating shaft directly or indirectly abuts against the sensor, and the force acting on the sensor can be monitored in real time. The size of the extrusion force of extruding dust into blocks in the factory can be quickly tested by setting the pressure adjustment device, which is convenient for adjusting and designing appropriate control parameters.

[0020] Preferably, the driving part is provided with a sprocket connected to the motor through a chain transmission, and the motor is fixed on a bracket below the auger.

[0021] The utility model discloses a dust discharge mechanism, comprising the above-mentioned dust extrusion mechanism and a dust collecting bucket fixed on a bracket, wherein the dust collecting bucket is provided with a material discharge port, and the material discharge port is communicated with a material feed port.

[0022] Preferably, a cyclone separator is provided above the dust collecting bucket, and the cyclone separator is connected to a fan. The fan sucks dust into the cyclone separator, and the dust falls into the dust collecting bucket after separation, and then enters the dust squeezing mechanism.

[0023] The utility model can efficiently collect dust in the dust collecting bucket by sequentially arranging the fan, cyclone separator, dust collecting bucket and dust squeezing mechanism from top to bottom, can work uninterruptedly and improve work efficiency; the dust squeezing mechanism can ensure working under high air pressure, so it can work more efficiently and stably.

[0024] Preferably, the fan is fixed above the cyclone separator, the side of the cyclone separator is provided with an air inlet, the fan is provided with an air outlet, the upper end of the cyclone separator is connected to the fan, the lower end of the cyclone separator is connected to the dust collecting bucket, and the dust in the dust collecting bucket is squeezed out by a dust extrusion mechanism.

[0025] In the utility model, dust first enters the cyclone separator, and the separated air enters the fan, which is less affected by the dust, so that the working efficiency is high, the energy consumption is low, the service life is long, and the noise generated is small.

[0026] Preferably, the dust collecting bucket is a flat-bottomed bucket, a stirring paddle is provided at the bottom of the flat-bottomed bucket, including a travel switch provided with a touch rod 10, and a sensing plate is installed above the stirring paddle arranged in the flat-bottomed bucket, the sensing plate includes a sensing groove, the sensing groove is larger than the touch rod, when there is no dust blocking the sensing groove, the touch rod can pass through the sensing groove, and when dust blocks the sensing groove, the touch rod is triggered.

[0027] The utility model can effectively control the coordinated work of the dust extrusion device and the fan through the travel switch to prevent dust blockage.

[0028] The utility model also discloses a dust collector, which comprises a dust squeezing mechanism or a dust discharging mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the dust removal mechanism structure of the utility model;

[0030] Figure 2 for Figure 1 A partial cross-sectional structural diagram of a dust extrusion mechanism of a dust discharge mechanism;

[0031] Figure 3 for Figure 2 A partial enlarged structural diagram of part A;

[0032] Figure 4 It is a schematic diagram of the structure of the dust extrusion mechanism;

[0033] Figure 5 This is a schematic diagram of the extruded Jiaolong structure;

[0034] Figure 6 This is a schematic diagram of the structure after some structures of the dust removal mechanism are removed;

[0035] Figure 7 It is a perspective view of the dust collector and its internal structure;

[0036] Figure 8 It is a schematic diagram of the structure of the stirring paddle and the induction plate;

[0037] Fig. 9It is a schematic diagram of the structure of the dust discharge mechanism in another shape;

[0038] Fig.10 for Figure 4 Schematic diagram of the front structural view of the end cover of the structure shown.

[0039] In the figure: 1-fan, 2-cyclone separator, 21-separation barrel, 211-separation outlet, 22-fixed barrel, 3-flat bottom barrel, 31-discharging port, 4-dust extrusion mechanism, 41-dragon shell, 4101-discharging end body, 4102-fixed end body, 42-extrusion head, 43-discharging port, 44-feeding port, 45-extrusion auger, 46-rotating shaft, 461-driving part, 4611-sprocket, 462-conveying part, 463-spiral blade, 47-end cover, 4701-driving handle, 4702-cover body, 4703 - notch, 471-mounting seat, 472-end cover drive, 4721-piston rod; 4722-piston cylinder, 5-air inlet, 6-air outlet, 7-stirring blade, 71-notch, 72-paddle plate, 74-sensing plate, 741-sensing groove, 75-first sensing plate, 751-avoidance groove, 76-second sensing plate, 8-first stroke switch, 9-second stroke switch, 10-touch rod, 11-bracket; 12-sensor, 121-fixed frame, 122-pressure adjustment device, 123-fixed cover; 13-motor, 14-chain. DETAILED DESCRIPTION

[0040] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as those in the present application.

[0041] The same meaning as commonly understood by ordinary technicians in the technical field to which the application belongs.

[0042] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0043] In addition, in the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0044] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, the meaning of "plurality" is two or more, unless otherwise clearly defined.

[0045] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] In the present utility model, unless otherwise clearly stipulated and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0047] The present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0048] like Figure 2-5 As shown, firstly, the utility model discloses a dust extrusion mechanism 4 , which includes a bracket 11 , an auger shell 41 and an extrusion auger installed in the auger shell 41 , and the auger shell 41 is fixed on the bracket 11 .

[0049] The auger shell is a cylindrical barrel, and a feed port 44 is arranged on one side of the cylindrical barrel. The auger shell includes a discharge end body and a fixed end body for fixing the extrusion auger, and a discharge port 43 is arranged on the discharge end body. The material enters the auger shell 41 from the feed port 44, and is discharged from the discharge port 43 after being extruded by the extrusion auger 45.

[0050] The extrusion auger 45 includes a rotating shaft 46, and the rotating shaft includes a driving part 461 and a conveying part 462. The conveying part is provided with a spiral blade 463, and the spiral blade is located in the auger housing. The driving part is exposed from the auger housing, and the material is conveyed to the discharge port under the rotation of the rotating shaft. The driving part is connected to the motor 13. The spiral blade 463 conveys the dust in the auger housing 41 to the discharge port 43, but with the contraction of the discharge end body of the auger housing or the provision of an extrusion head on the discharge end body, the extrusion auger squeezes the dust into blocks. However, when encountering different working conditions, the dust will be difficult to be squeezed into blocks, and dust spraying will occur.

[0051] In this regard, the dust extrusion mechanism includes an end cover 47, a mounting seat 471 and an end cover drive 472. The end cover 47 is installed on the mounting seat 471. The end cover drive 472 drives the end cover to move so that the discharge port is closed or opened. After the discharge port 43 is closed, the extrusion force of the extrusion auger 45 on the material is increased, so that the material is squeezed into blocks.

[0052] The end cover closes the discharge port, and its shape is adapted to form a cover body. Of course, there are many ways to close the discharge port, such as a plate-like structure, a mounting seat on which the end cover is inserted to close the discharge port, or an opening is directly opened on one side of the discharge end body, and the end cover is inserted into the opening to close the discharge port, etc. As long as the end cover can close the discharge port, its shape is not particularly limited. The end cover drive can also have a variety of actions to close or open the discharge port, such as flipping, rotating, or moving in a straight line up and down, etc. Fig.10 As shown, the closure described in this patent includes full closure or partial closure, such as the cover body has a gap behind the discharge port, the gap cannot be too large, the setting of the gap is conducive to the discharge of part of the gas, and does not cause powder spraying, and is convenient for the dust to be squeezed into blocks. Of course, the gap can be one or more through holes, or it can be a circular edge gap of the cover plate.

[0053] The present application provides a more preferred method, wherein the end cover drive 472 includes a piston rod 4721 and a piston cylinder 4722, and the end cover 47 includes a cover body 4702 and a drive handle 4701. One end of the drive handle 4701 is fixed to the cover body 4702, and the other end is hinged to the piston rod 4721 or the piston cylinder 4722. The two ends of the drive handle 4701 are hinged and fixed on the mounting seat 471, and the piston rod 4721 pushes or pulls the drive handle 4701 to rotate around the mounting seat 471. The end cover drive drives the end cover to flip over the discharge port to cover or open the discharge port, which can not only seal the discharge port more tightly but also prevent the end cover from being opened. Moreover, when the pressure is sufficient, even if the end cover drive fails, the dust can be squeezed out, thereby increasing the safety of the pressurizing mechanism.

[0054] Specifically, the mounting seat 471 is fixed on the bracket 11 or the discharge end body 4101 of the dragon shell 41. The mounting seat is fixed on the upper side of the discharge end body of the dragon shell, close to the discharge port, so the structure of the mounting seat can be set relatively simple. The hinged mounting shaft of the mounting seat is basically flush with the port or slightly exceeds the front of the port, and the end cover is below the hinged mounting shaft to block the port.

[0055] The end cover drive 472 is a cylinder, a hydraulic cylinder or an electric cylinder, and the piston cylinder is installed on the bracket, generally hinged and fixed. The piston rod is hingedly connected to one end of the driving handle. Of course, other driving devices, such as gears, screws, etc., can also be provided as needed to drive the end cover to move. The hinge connection between the piston rod and the driving handle, the hinge connection between the driving handle and the mounting seat, and the hinge connection between the piston cylinder and the bracket enable each rod structure to perform circular motion around the hinge axis or the pivot axis. Whether other directions are restricted to complete the target trajectory is not specifically limited in this patent, as long as this purpose can be achieved.

[0056] In order to automatically control the action of the end cover in real time, when the extrusion auger cannot pressurize the dust into blocks, or when there is not enough dust in the auger shell to make the material discharged into blocks when the machine is turned on, the discharge port can be blocked. The dust extrusion mechanism 4 includes a sensor 12, which senses the twisting force of the extrusion auger 45 to transmit a signal to the controller to control the action of the end cover drive 472, so that the end cover closes or opens the discharge port. The sensor is set in various ways, such as setting a current sensor to detect the working current of the motor to control the opening and closing of the end cover, or setting a pressure spring to detect the movement of the auger.

[0057] As a preferred embodiment, a sensor is provided at the end of the driving part for detecting the axial pressure of the rotating shaft. Specifically, the sensor is a pressure sensor fixed on the bracket, the end of the rotating shaft abuts against the sensor, and the axial movement of the rotating shaft transmits pressure so that the sensor generates a pressure signal. The end of the rotating shaft abuts against the sensor, either directly or indirectly. Since the rotating shaft rotates and the sensor is fixed on the bracket, a bearing, a washer or a partition may be provided between the sensor and the end of the rotating shaft for indirect abutment.

[0058] The end of the rotating shaft is fixed by a plane bearing, and a gap that can move left and right can be left between the rotating shaft and the bearing in the axial direction, or the supporting structure has the ability to deform left and right. The rotating shaft moves toward the sensor under the push of the reaction force generated by the extruded dust, and presses against one side of the sensor. The pressure sensor is fixed to the bracket through a fixing seat, including a fixing cover 123, and a pressure adjustment device is provided on the fixing cover, and the pressure adjustment device is pressed against the other side of the pressure sensor. The fixing cover is a structure for fixing the pressure adjustment device, which can be a support rod, a plate, etc., or a cover plate to close the sensor and install the pressure adjustment device. The pressure adjustment device of the present application is a pressure adjustment screw. The pressure adjustment screw is threadedly connected to the top cover, and one end of the screw passes through the cover plate and presses against one side of the sensor. The tightness of the pressure sensor is adjusted by turning the screw.

[0059] The driving part is provided with a sprocket 4611 and connected to the motor 13 through a chain 14, and the motor is fixed on a bracket below the extrusion auger. The sprocket chain transmission has a larger torque and the motor setting is more flexible. Of course, the motor kinetic energy can be transmitted to the extrusion auger through a pulley-belt transmission, a gear transmission, a screw transmission, etc., and the sprocket chain transmission can be directly replaced.

[0060] The working principle of the dust extrusion mechanism is: when the extrusion auger moves forward, it will generate recoil, and the pressure sensor is installed on the rear bearing iron plate of the extrusion auger opposite to the end of the rotating shaft; during operation, due to the influence of recoil, the rotating shaft moves axially backward, causing the iron plate to protrude backward, and the pressure sensor will have pressure through the instrument display value and output a signal. When it is greater than the required pressure value set by the adjustment, the controller controls the end cover to open automatically, and the waste extruded into blocks is extruded smoothly. When it cannot be extruded into blocks, the pressure will be reduced. When it drops to the adjusted value, the end cover is closed to ensure that there will be no dust spraying, so as to ensure normal operation under different dust conditions.

[0061] like Figure 1-9As shown, this embodiment also discloses a dust discharge mechanism, including a dust extrusion mechanism 4, including a fan 1, a cyclone separator 2, a dust collecting bucket and a dust extrusion mechanism 4 arranged in sequence from top to bottom, the side of the cyclone separator 2 is provided with an air inlet 5, and the fan 1 is provided with an air outlet 6. The dust collecting bucket can collect the separated dust, and the dust collecting bucket in this embodiment is a flat bottom bucket 3. The top of the cyclone separator 2 is provided with an air outlet channel, and the air outlet channel is connected to the air inlet channel of the fan. The air inlet 5 of the cyclone separator 2 is connected to the dust collector through a conveying pipeline, and the negative pressure generated when the fan 1 is working and the positive pressure inside the dust collector are used to suck the dust in the dust collector into the cyclone separator 2, and the particles, fibers, debris, etc. are separated by cyclone. The separated gas enters the dust collector through the fan-fan outlet. The dust and the like contained in the separated gas is reduced to less than 5%, or even to 2%, so the influence of dust and the like on the operation of the fan 1 is reduced to a very small state, and the working efficiency and service life of the fan 1 are greatly improved. The cyclone separator 2 includes a separation barrel 21, which is generally a truncated cone with a large top and a small bottom, and a separation outlet 211 is provided at the bottom. The separation outlet 211 is connected to the flat-bottomed barrel 3 below, and the separation enters the flat-bottomed barrel 3 by its own weight or the action of a conveying mechanism. A fixed barrel 22 is arranged on the outside of the separation barrel 21, and the fixed barrel is a truncated cone with a small top and a large bottom. The upper end of the fixed barrel 22 is fixed to the cyclone separator 2, and the lower end of the fixed barrel 22 is fixedly connected to the flat-bottomed barrel 3. The fixed barrel 22 plays the role of supporting the cyclone separator 2 and the fan 2, so that the online dust removal mechanism can be independently installed and operated without being attached to the dust collector.

[0062] The flat-bottomed barrel 3 is a round-top barrel, and a steering stirring mechanism is arranged at the center of its lower part. The steering stirring mechanism includes a drive arranged at the lower part of the outer side of the flat-bottomed barrel 3, and a stirring blade 7 arranged on the inner side of the flat-bottomed barrel 3 and connected to the drive for rotation. The drive is a motor drive. There are four stirring blades 7, and a notch 71 is arranged away from the center below some or all of the stirring blades 7. A paddle 72 is arranged on the notch. The paddle 72 is a rubber plate or the like, and has a certain flexibility. At the junction with the bottom wall of the flat-bottomed barrel 3, dust and the like are swept into the dust squeezing mechanism 4 and can have a certain squeezing effect on the dust.

[0063] A discharge port 31 is provided at the bottom of the flat-bottomed barrel 3, which is off-center. The dust extrusion mechanism 4 includes an auger housing 41 and an extrusion auger installed in the auger housing 41. A feed port 44 is provided on the auger housing 41, which is located inside the flat-bottomed barrel 3 and is in communication with the discharge port 31. It can also be said that the discharge port 31 is the feed port 44 of the dust extrusion mechanism 4. A discharge port 43 is provided at one end of the auger housing 41, and an extrusion head 42 is installed on the discharge port 43. The extrusion auger is driven by a motor.

[0064] The discharge port 31 is arranged below the paddle 72, and the paddle 72 paddles the dust and the like into the auger housing 41, and is transported and compressed by the auger. The inner cavity of the auger housing 41 shrinks toward the discharge port 41, and the space between the auger blades and the auger housing 41 is compressed, so that the dust is concentrated and compressed during the transportation process. The existing auger structure is not sufficient to compress the dust firmly. In this embodiment, an adjusting bolt is arranged along the circumferential direction on the extrusion head 42, and the discharge port 41 is provided with a plurality of adjusting gaps arranged along the circumferential direction, which divides the end of the discharge port 43 into a plurality of contraction arcs. The ends of the adjusting bolts are respectively pressed against the contraction arcs, and turning the adjusting bolts can contract the contraction arcs, so that the outlet becomes smaller. When the discharge port 41 is adjusted to a certain caliber, the dust and other separated substances can be compressed into blocks. The size of the discharge port 41 is adjusted according to factors such as the type of dust, humidity, and pressure inside the dust collector, so that the dust can be compressed into blocks. It can be suitable for the working pressure of the dust collector to avoid loose dust discharged from the dust collector, high internal pressure, and spraying at the discharge port 41. The dust is discharged as dust blocks 12 after passing through the dust extrusion mechanism 4.

[0065] A travel switch is installed on the side wall of the flat-bottomed barrel 3, and the travel switch includes a first travel switch 8 and a second travel switch 9 of different heights. The first travel switch 8, the second travel switch 9 and the fan 1 are all connected to a controller, which is not drawn in the figure.

[0066] The first travel switch 8 and the second travel switch 9 are used to detect the height of dust and the like accumulated in the flat-bottomed bucket 3. Since dust and other separated materials are accumulated and floated in the flat-bottomed bucket 3, it is difficult for a conventional photoelectric sensor switch or a touch switch to effectively detect the height of dust and other separated materials accumulated in the flat-bottomed bucket 3. In this regard, in this embodiment, the first travel switch 8 and the second travel switch 9 are touch-sensitive travel switches, and the first travel switch 8 and the second travel switch 9 are respectively provided with a touch rod 10, and the touch rod 10 is located in the flat-bottomed bucket 3, and the touch rod 10 can be a metal rod or a spring. In some embodiments, the first travel switch 8 and the second travel switch 9 use Omron WLNJ-30 travel switches. In conjunction with it, a sensing plate 74 is provided on the stirring blade 7, and the sensing plate 74 is provided with a sensing groove 741 that cooperates with the touch rod 10, and the width of the sensing groove 741 is slightly larger than the diameter or width of the touch rod 10. When there is no dust or the like blocking the sensing slot 741, the feeler rod 10 can smoothly pass through the sensing slot 741. When the dust accumulation height exceeds the sensing slot 741, the sensing slot 741 is blocked by dust or the like, and when the stirring blade 7 rotates, it contacts the feeler rod 10, and the feeler rod 10 cannot smoothly pass through the sensing slot 741 and trigger the travel switch.

[0067] In some embodiments, the sensing plates 74 are provided with two, namely, a first sensing plate 75 and a second sensing plate 76. The sensing slots 741 are respectively provided at the first sensing plate 75 and the second sensing plate 76 corresponding to the first travel switch 8 and the second travel switch 9, and the first sensing plate 75 is further provided with an avoidance slot 751, and the opening width of the avoidance slot 751 is much larger than the width or diameter of the touch rod 10, and also larger than the sensing slot 741.

[0068] The first travel switch 8 and the second travel switch 9 transmit the formed signal to a controller (not shown in the figure, which is a control chip, a PLC controller, etc.), and the controller controls the operation of the fan 1. An inspection door 10 is provided on the side of the flat bottom barrel 3.

[0069] The flat bottom barrel 3 is mounted on the bracket 11, and the dust extrusion mechanism 4 and the motor driving the dust extrusion mechanism 4 can also be mounted on the bracket 11. The utility model needs to be used in conjunction with a dust collector. During installation, the air inlet 5 and the air outlet 6 are both connected to the storage bin of the dust collector, the air inlet 5 is connected to the storage bin at the bottom of the dust collector, and the air outlet 6 is connected to the upper interface of the dust collector. Its working principle is as follows: when the fan 1 is running, negative pressure is generated in the cyclone separator 2, so that the dust in the storage bin enters the cyclone separator 2 from the air inlet 5. After the dust passes through the cyclone separator 2, 95% of the dust falls into the flat-bottomed barrel 3, and 5% of the dust returns to the storage bin from the air outlet 6; when the dust in the flat-bottomed barrel 3 accumulates to a certain height, the first travel switch 8 is triggered when the stirring blade 7 is in the working state, and the first travel switch 8 transmits a signal to the controller. The controller can set the program to control the fan 1 to stop for a certain time, and the time can be set according to needs. At this time, the dust extrusion mechanism 4 continues to squeeze the dust in the flat-bottomed barrel 2 The dust is squeezed into blocks. After the fan 1 reaches the shutdown time, if the dust height in the flat-bottomed barrel 2 has been reduced and the first stroke switch 8 has not been triggered, the controller controls the fan 1 to resume operation, thereby avoiding excessive dust in the flat-bottomed barrel 2 and causing malfunctions; if the dust in the flat-bottomed barrel 3 accumulates to a certain height, the second stroke switch 9 is triggered, and the second stroke switch 9 transmits a signal to the controller. The program can be set for the controller to control the fan 1 to shut down for a certain period of time. The time can be set as needed. At the same time, it indicates that the first stroke switch 8 may fail unexpectedly, reminding workers to repair it and restore the normal operation of the first stroke switch 8.

[0070] The first travel switch 8 and the second travel switch 9 trigger signals to the controller, and the controller controls the dust collector to perform corresponding work according to the program. Of course, it can be set to control the working power of the auger, etc.

[0071] This embodiment also discloses a dust collector (not shown in the drawings), whose main structure is similar to the dust collectors with publication numbers CN203090651U and CN112535916A previously applied for by the present applicant, and the dust extrusion device disclosed in this application replaces the existing "dust extrusion device" or the dust discharge mechanism disclosed in this application replaces the discharge device of the prior art. The dust collector body and the dust extrusion mechanism or the dust discharge mechanism are fixedly connected or separately arranged. If the dust extrusion mechanism or the dust discharge mechanism and the dust collector are fixedly connected, they can be firmly connected to form an integrated structure, and the bracket is the outer shell of the dust collector or is shared with the dust collector, reducing the use of structural materials such as the bracket; and if they are separately arranged, the same dust extrusion mechanism or dust discharge mechanism can be applied to one or more dust collectors, which reduces the setting of the dust extrusion mechanism or the dust discharge mechanism as a whole, and the working and maintenance space can be configured separately, which is efficient and stable.

[0072] Finally, it should be noted that the dust in this patent includes powder, dust or crushed fibers and other substances processed by dust collectors in factories. The dust can be squeezed into blocks by adjusting the contraction ratio of the discharge end body. However, in the long-term practice, the applicant found that due to changes in the dust material and the environment in which it is located, there may be changes, which may affect the extrusion of dust into blocks, and powder spraying often occurs. Through a lot of experiments and explorations, an automatically controlled end cover is set to solve the above problems. The above list is only a specific implementation method of the utility model. Obviously, the utility model is not limited to the above implementation methods, and there can be many variations. All variations that can be directly derived or associated with the content disclosed by ordinary technicians in this field should be considered to be within the scope of protection of the utility model.

Claims

1. A dust extrusion mechanism, comprising a bracket (11), an auger housing (41), and an extrusion auger (45) installed in the auger housing (41), wherein a feed port (44) is provided on one side of the auger housing (41), and a discharge port (43) is provided on one end of the auger housing (41), wherein materials enter the auger housing (41) from the feed port (44), are extruded by the extrusion auger (45), and are discharged from the discharge port (43), wherein: The invention comprises an end cover (47), a mounting seat (471) and an end cover drive (472), wherein the end cover (47) is mounted on the mounting seat (471), and the end cover drive (472) drives the end cover to move and cover the discharge port or to open the discharge port. When the discharge port (43) is covered, the extrusion force of the extrusion auger (45) on the material is increased, so that the material is extruded into blocks.

2. The dust extrusion mechanism according to claim 1, characterized in that: The end cover drive (472) comprises a piston rod (4721) and a piston cylinder (4722); the end cover (47) comprises a cover body (4702) and a drive handle (4701); one end of the drive handle (4701) is fixed to the cover body (4702), and the other end is hinged to the piston rod (4721) or the piston cylinder (4722); the two ends of the drive handle (4701) are hinged and fixed on the mounting seat (471); the piston rod (4721) pushes or pulls the drive handle (4701) to rotate around the mounting seat (471).

3. The dust extrusion mechanism according to claim 2, characterized in that: The cover body (4702) covers the discharge port (43) with a gap (4703) left behind, the mounting seat (471) is fixed on the bracket (11) or the discharge end body (4101) of the dragon shell (41), the end cover drive (472) is a cylinder, a hydraulic cylinder or an electric cylinder, the cylinder body is mounted on the bracket, and the piston rod is hingedly connected to one end of the drive handle.

4. The dust extrusion mechanism according to any one of claims 1 to 3, characterized in that: It comprises a sensor (12), wherein the sensor (12) senses the twisting force of the extrusion auger (45) and controls the end cover drive (472) to close or open the discharge port.

5. The dust extrusion mechanism according to claim 4, characterized in that: The extrusion auger comprises a rotating shaft (46), the rotating shaft comprises a driving part (461) and a conveying part (462), the conveying part is provided with a spiral blade (463), the spiral blade is located in the auger housing, the driving part is exposed from the auger housing, and the material is conveyed to the discharge port under the rotation of the rotating shaft, the driving part is connected to the motor (13), and a sensor is provided at the end of the driving part for detecting the pressure of the rotating shaft in the axial direction.

6. The dust extrusion mechanism according to claim 5, characterized in that: The sensor is a pressure sensor, which is fixed on the bracket. The end of the rotating shaft abuts against the sensor. The rotating shaft moves axially to transmit pressure so that the sensor generates a pressure signal.

7. The dust extrusion mechanism according to claim 6, characterized in that: The end of the rotating shaft is fixed on the bracket through a bearing. Under the push of the reaction force generated by the extruded dust, the rotating shaft moves toward the sensor and presses against one side of the sensor. The pressure sensor is fixed on the bracket through a fixing seat, including a fixing cover. The fixing cover is provided with a pressure adjusting device, and the pressure adjusting device presses against the other side of the pressure sensor.

8. The dust extrusion mechanism according to claim 5, characterized in that: The driving part is provided with a sprocket (4611) which is connected to the motor (13) via a chain (14); the motor is fixed on a bracket below the auger.

9. A dust discharge mechanism, comprising the dust extrusion mechanism according to any one of claims 1 to 7, characterized in that: It comprises a dust collecting bucket fixed on a bracket, the dust collecting bucket being provided with a material discharge port (31), the material discharge port being connected to a material feed port.

10. The dust removal mechanism according to claim 9, characterized in that: A cyclone separator (2) is provided above the dust collecting bucket. The cyclone separator (2) is connected to the fan (1). The fan sucks dust into the cyclone separator. After the dust is separated, it falls into the dust collecting bucket and then enters the dust squeezing mechanism.

11. The dust removal mechanism according to claim 10, characterized in that: The fan is fixed above the cyclone separator, the side of the cyclone separator (2) is provided with an air inlet (5), the fan (1) is provided with an air outlet (6), the upper end of the cyclone separator (2) is connected to the fan (1), and the lower end of the cyclone separator (2) is connected to the dust collecting bucket, and the dust in the dust collecting bucket is squeezed out by the dust squeezing mechanism (4).

12. The dust removal mechanism according to claim 10, characterized in that: The dust collecting bucket is a flat-bottomed bucket (3), a stirring blade (7) is provided at the bottom of the flat-bottomed bucket (3), and includes a travel switch provided with a touch rod (10); a sensing plate (74) is installed above the stirring blade (7) provided in the flat-bottomed bucket (3); the sensing plate (74) includes a sensing groove (741); the sensing groove (741) is larger than the touch rod (10); when the sensing groove (741) is not blocked by dust, the touch rod (10) can pass through the sensing groove (741); and when the sensing groove (741) is blocked by dust, the touch rod (10) is triggered.

13. A dust collector, characterized in that: The invention comprises the dust squeezing mechanism according to any one of claims 1 to 8, or comprises the dust discharging mechanism according to any one of claims 9 to 10.

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