Anti-blocking device for microsphere production

Abstract

The utility model discloses an anti-blocking device for microsphere production, which comprises a barrel body, an air inlet pipe and a feed port are arranged on the barrel body, a grading wheel is rotatably connected above the barrel body, a matched discharge pipe is arranged above the grading wheel, the discharge pipe is fixed on the barrel body, a baffle capable of blocking the discharge pipe is connected in the barrel body in a sliding manner, and the discharge pipe is connected with the barrel body in a sliding manner. A baffle is arranged on the barrel body, the baffle is connected with a blowing assembly capable of cleaning the grading wheel in a sliding mode, a switch assembly capable of enabling the blowing assembly to work is arranged in the discharging pipe, and the barrel body is further connected with an impact rod matched with the grading wheel in a sliding mode, so that the grading wheel can be cleaned in the using process, blocking of the grading wheel is reduced, and the microsphere preparation precision is improved; and powder accumulation in the using process of the grading wheel can be avoided, and the service life of the grading wheel is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to microsphere preparation technical field, concretely relates to a microsphere production anti -blocking device. BACKGROUND

[0002] The airflow type ultrafine machine is that material is added into the crushing bin, and compressed air is filled in the crushing bin, high-strength airflow will blow up the material, mutual collision between material particles is inevitable, the material is crushed into small particles under the collision, the material is classified through the classification mechanism, the material meeting the crushing fineness requirement is discharged through the discharge port, and the material with insufficient fineness continues to be crushed in the crushing bin until meeting the requirement, so that the particle fineness is relatively uniform, and the yield is relatively large, and the airflow type ultrafine machine is especially suitable for the ultrafine crushing of brittle materials such as western medicine or chemical raw materials, and the crushing efficiency is relatively high.

[0003] According to the patent with the announcement number CN 213000357 U, a airflow crusher is disclosed, which comprises a airflow crushing box body, a Laval nozzle is fixedly installed on the airflow crushing box body, one end of the Laval nozzle is fixedly connected with an air inlet pipe, one end of the air inlet pipe is welded with a connecting pipe, a classification box body is arranged on the top outer wall of the airflow crushing box body, a feeding crushing box body is arranged on the top outer wall of the classification box body, a frequency conversion motor is fixedly installed on the side outer wall of the classification box body, the output end of the frequency conversion motor is fixedly connected with a classification wheel, the classification wheel is located in the inside of the classification box body, a discharge pipe is connected with the end of the classification wheel away from the frequency conversion motor, the discharge pipe extends to the outside of the classification box body, a fixed plate is welded on the side outer wall of the feeding crushing box body, a servo motor is fixedly installed on the top outer wall of the fixed plate, the output end of the servo motor is fixedly connected with a rotating shaft, the rotating shaft is inserted into the inside of the feeding crushing box body, and a crushing blade is welded on the outer wall of the rotating shaft.

[0004] However, the above-mentioned device still has the following problems: the classification wheel as a core component is easily blocked by the attached unqualified fine particles, which reduces the classification and filtration efficiency, and the powder is easily accumulated at the bottom of the classification wheel, which is not conducive to filtration and cleaning. UTILITY MODEL CONTENTS

[0005] In order to solve the above-mentioned problems in the prior art that the classification wheel is easily blocked by the attached unqualified fine particles during work and the powder is easily accumulated inside, a microsphere production anti-blocking device is provided to solve the problems of the classification wheel being blocked by the unqualified fine particles during use and the powder accumulation inside the classification wheel.

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

[0007] The utility model provides a kind of anti-blocking device for microsphere production, including bucket body, air inlet pipe and feed inlet are provided on the bucket body, the bucket body upper rotationally connected with classification wheel, the upper portion of the classification wheel is provided with the matched discharge pipe, the discharge pipe is fixed on the bucket body, the baffle that can be blocked to the discharge pipe is slidably connected in the bucket body, the baffle slidingly connected with the air blowing assembly that can be cleaned to the classification wheel, the discharge pipe is provided with the switch assembly that can make the air blowing assembly work, the bucket body is also slidably connected with the impact rod matched with the classification wheel.

[0008] Preferably, the switch assembly includes a shaft, one end of the shaft is provided with an impeller, the impeller can make the shaft rotate relative to the discharge pipe, the other end of the shaft is provided with a cam, the cam is provided with a plurality of clamping holes, the shaft is slidably provided with a clamping block by a first elastic member, the clamping block can be matched with any one of the clamping holes, the discharge pipe is provided with a microswitch matched with the cam.

[0009] Preferably, the discharge pipe is slidably connected with a ejector rod by a second elastic member, the lower end of the ejector rod is in contact with the cam; the upper end of the ejector rod can be matched with the microswitch.

[0010] Preferably, the air blowing assembly includes an air blowing pipe, the air blowing pipe is connected with a fixed pipe, the fixed pipe is fixed in the bucket body, the fixed pipe is slidably connected with a movable pipe, the lower end of the movable pipe is connected with the baffle, the lower end of the movable pipe is matched with a seal plate that can be opened and closed.

[0011] Preferably, the upper portion of the movable pipe is provided with a via hole, the via hole can be matched with the air blowing pipe.

[0012] Preferably, the shaft of the classification wheel extends out of the bucket body, the impact rod can be matched with the shaft of the classification wheel, the impact rod is connected with an electromagnet, the electromagnet is fixed on the bucket body.

[0013] Preferably, the shaft of the classification wheel is connected with a motor, the motor is fixed on the bucket body.

[0014] Preferably, the baffle is connected with an electric push rod, the electric push rod is fixed in the bucket body.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] 1. By the cooperation of the clamping block and the cam under the centrifugal force of the rotating shaft, the intermittent work of the micro switch by the ejector rod is realized, if the rotating speed of the rotating shaft decreases, the centrifugal force decreases, the clamping block retracts, the cam stops rotating, then the micro switch has no response in unit time, at this time the baffle drives the air blowing assembly to work, realizing the cleaning of the fine microspheres adhering to the classification wheel by the gas blown into the blow pipe, so as to avoid the blockage of the classification wheel and affect the preparation of the microspheres.

[0017] 2. In the normal rotation process of the rotating shaft, the cam makes the ejector rod move intermittently, the micro switch makes the electromagnet intermittent on-off, and then the impact rod impacts the classification wheel shaft intermittently, so that the classification wheel produces slight vibration, avoiding the accumulation of powder in the classification wheel. BRIEF DESCRIPTION OF DRAWINGS

[0018] The above and / or additional aspects and advantages of the present utility model will become apparent and more readily appreciated from the following description of the embodiments, with reference to the following drawings, in which:

[0019] Figure 1 is a three-dimensional structure schematic diagram of the present utility model;

[0020] Figure 2 is a front view internal structure schematic diagram of the present utility model;

[0021] Figure 3 is a three-dimensional structure schematic diagram of the present utility model Figure 2 is an enlarged schematic diagram of A in the present utility model;

[0022] Figure 4 is an enlarged schematic diagram of B in the present utility model; Figure 2

[0023] Figure 5 is an enlarged schematic diagram of C-C in the present utility model Figure 3

[0024] Figure 6 is a position schematic diagram of the impact rod in the present utility model

[0025] Figure 7 is a three-dimensional structure schematic diagram of the baffle in the present utility model.

[0026] BRIEF DESCRIPTION OF DRAWINGS

[0027] 1. barrel body; 2, air inlet pipe; 3, feed inlet; 4, air blowing pipe; 5, motor; 6, discharge pipe; 7, electromagnet; 8, classification wheel; 9, sealing plate; 10, movable pipe; 11, fixed pipe; 12, via hole; 13, electric push rod; 14, baffle; 15, rotating shaft; 16, clamping hole; 17, tension spring; 18, clamping block; 19, cam; 20, ejector rod; 21, micro switch; 22, spring; 23, impact rod. DETAILED DESCRIPTION

[0028] ​​The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0029] Example 1:

[0030] like Figure 1 - Figure 7 As shown, this embodiment proposes a microsphere production anti-clogging device, including a barrel 1, an air inlet pipe 2 and a feed inlet 3 on the barrel 1. The air inlet pipe 2 is connected to a high-speed airflow, which causes the raw materials in the barrel 1 to move at high speed and collide with each other to form microspheres. The feed inlet 3 is connected to a feeding mechanism to allow the raw materials to enter the barrel 1. The raw material feeding mechanism and the high-speed airflow generating mechanism are both mature products on the market.

[0031] Furthermore, the microsphere preparation material is usually a polyester polymer material. Polyester polymer materials are brittle at low temperatures. The introduced polyester polymer material can be pretreated at low temperatures first. At the same time, a temperature control unit can be installed in the barrel 1 to enable the microsphere preparation to be carried out at low temperatures, so as to make full use of the physical characteristics of the low-temperature brittleness of polyester polymer materials.

[0032] To further facilitate the smooth preparation of microspheres, a controller is also installed on the barrel 1. The controller is a mature product on the market.

[0033] Specifically, the controller is a programmable logic controller (PLC). A programmable logic controller is a digital computing and operating electronic system specifically designed for industrial applications. It uses a programmable memory to store instructions for performing logical operations, sequential control, timing, counting, and arithmetic operations. It controls various types of mechanical equipment or production processes through digital or analog inputs and outputs.

[0034] A grading wheel 8 is rotatably connected to the top of the barrel 1. The rotating shaft of the grading wheel 8 extends upward from the barrel 1. The rotating shaft of the grading wheel 8 is connected to a motor 5. The motor 5 is electrically connected to a controller. The motor 5 is fixed on the barrel 1. The motor 5 can drive the grading wheel 8 to rotate. The grading wheel 8 cooperates with the barrel 1. The barrel 1 is divided into two parts by the grading wheel 8. The lower part of the grading wheel 8 is the lower crushing zone, and the upper part of the grading wheel 8 is the upper grading zone.

[0035] Specifically, motor 5 is a mature product on the market, and you can choose to purchase it according to your needs.

[0036] Specifically, the grading wheel 8 is a mature market product. Its structure is mainly composed of a front flange plate, a rear flange plate, a plurality of blades, and a gas sealing plate. The blades are fixedly connected with the front and rear flange plates to form a rotating turbine structure. The gas sealing plate is provided with an annular groove, and the rear end of the blade is inserted into the annular groove to ensure the sealing and stability of the airflow.

[0037] Specifically, the grading wheel 8 is driven to rotate in the barrel 1 by the motor 5 to form a centrifugal force. Under the action of the suction force formed by the fan in the subsequent work station, the material moves to the grading wheel 8 along with the rising airflow. The fine particles meeting the particle size requirement pass through the grading wheel 8 into the grading area and then enter the next component to be collected, while the coarse particles descend to the lower crushing area for further crushing.

[0038] The grading area above the grading wheel 8 is horizontally provided with a matched discharge pipe 6. The discharge pipe 6 is fixed on the barrel 1, and the outlet end of the discharge pipe 6 is connected to the subsequent work station cyclone collector, so that the qualified microspheres can pass through the discharge pipe 6 into the cyclone collector for collection.

[0039] The barrel 1 in the grading area above the grading wheel 8 is slidably connected with a baffle 14. The baffle 14 is connected with an electric push rod 13. The electric push rod 13 is fixed in the barrel 1 and electrically connected with the controller. When the electric push rod 13 pushes the baffle 14 to move downward, the discharge pipe 6 can be blocked to avoid the cleaning gas discharged from the discharge pipe 6 affecting the cleaning effect when the grading wheel 8 is cleaned.

[0040] Specifically, the electric push rod 13 is a mature market product, which can be purchased according to the requirements.

[0041] Further, when the baffle 14 is moved into position, a closed space can be formed above the grading wheel 8 with the cooperation of the barrel 1, so that the cleaning gas can enter the grading wheel 8 to achieve better cleaning of the grading wheel 8.

[0042] The barrel 1 in the grading area above the grading wheel 8 is fixedly connected with a gas blowing pipe 4. The gas blowing pipe 4 is connected with a fixed pipe 11 fixed in the barrel 1. A movable pipe 10 is slidably connected in the cavity of the fixed pipe 11. The lower end of the movable pipe 10 is connected with the baffle 14. The lower end of the movable pipe 10 is provided with an openable and closable sealing plate 9. The sealing plate 9 is hingedly connected to the baffle 14 by a torsional spring. A through hole 12 is formed above the movable pipe 10. When the baffle 14 moves downward to the position, the through hole 12 is in communication with the gas blowing pipe 4.

[0043] Further, the gas blowing pipe 4 is connected with a cleaning gas source station special for the grading wheel 8. The gas source station is a mature market product. The gas source station can supply gas to and stop the gas supply of the gas blowing pipe 4 under the control of the controller.

[0044] Specifically, when the electric push rod 13 is controlled to move the baffle 14 to the position, the controller controls the air source connected to the blowing pipe 4 to work, the air flow enters the fixed pipe 11 through the blowing pipe 4, enters the movable pipe 10 through the hole 12, and under the action of the air pressure, the sealing plate 9 overcomes the resistance of the torsional spring and rotates, so that the air flow enters the grading wheel 8, and the fine microspheres attached to the grading wheel 8 enter the lower crushing area. When the air flow stops, the sealing plate 9 is reset under the action of the torsional spring, so that the movable pipe 10 is resealed, thereby avoiding that the microsphere particles enter the inside of the movable pipe 10 during the preparation of the microspheres.

[0045] Further, in order to better realize the cleaning of the grading wheel 8 and avoid the pollution of the microsphere preparation, the air source station connected to the blowing pipe 4 uses nitrogen as a clean air source.

[0046] The switch assembly is arranged in the discharge pipe 6, the switch assembly comprises a rotating shaft 15, the rotating shaft 15 is provided with an impeller at an end away from the grading wheel 8, the impeller can rotate the rotating shaft 15 relative to the discharge pipe 6, the other end of the rotating shaft 15 is sleeved with a cam 19, the circumferential surface of the cam 19 in contact with the rotating shaft 15 is provided with a plurality of clamping holes 16, the rotating shaft 15 is slidably provided with a clamping block 18 through a first elastic member, the first elastic member is a tension spring 17, one end of the tension spring 17 is connected with the clamping block 18, the other end of the tension spring 17 is connected with the rotating shaft 15, the clamping block 18 can slide into any one of the clamping holes 16 under the centrifugal force of the rotating shaft 15 and overcome the tension of the tension spring 17, the discharge pipe 6 is slidably connected with a lifting rod 20 through a second elastic member, the lifting rod 20 can only slide up and down under the action of the cam 19, the second elastic member is a spring 22, one end of the spring 22 is connected with the lifting rod 20, the other end of the spring 22 is connected with the discharge pipe 6, the lower end of the lifting rod 20 is in line contact with the cam 19, the upper end of the lifting rod 20 can cooperate with a micro switch 21, and the micro switch 21 is electrically connected with the controller.

[0047] The spring force of the spring 22 is greater than the resistance formed when the cam 19 is at rest, and the spring force of the spring 22 is less than the torsion when the rotating shaft 15 rotates.

[0048] The tension of the tension spring 17 is less than the centrifugal force formed after the rotating shaft 15 rotates.

[0049] Specifically, the micro switch 21 is a mature product in the market, which is selected and purchased according to needs. The micro switch, that is, a switch using very small force, is a switch in which an external mechanical force acts on the action spring through a transmission element, so that the fixed contact at the end of the action spring is quickly connected or disconnected with the movable contact, and is widely used in electronic equipment, instruments and meters, mines, power systems, household appliances and electrical equipment.

[0050] Specifically, when the classification wheel 8 is blocked by the fine particles that do not meet the standard during the preparation of microspheres, the air flow formed by the suction force of the fan at the subsequent station decreases, the rotating speed of the rotating shaft 15 decreases, the clamping block 18 is reset and separated from the clamping hole 16 by the tension spring 17, at this time, the power of the cam 19 disappears, because the top rod 20 and the cam 19 are in line contact, when the cam 19 stops rotating, the top rod 20 moves downward and remains under the action of the elastic force of the spring 22, and then is separated from the micro switch 21, and if there is no signal of the micro switch 21 in the unit time of the controller, it indicates that the classification wheel 8 is blocked at this time, and then the controller controls the electric push rod 8 to work to clean the classification wheel 8.

[0051] Further, when the classification wheel 8 is cleaned, the air flow formed by the suction force of the fan at the subsequent station recovers, at this time, the rotating speed of the rotating shaft 15 recovers, the clamping block 18 is thrown out again under the centrifugal force, and then is clamped into any one of the clamping holes 16, the rotating shaft 15 rotates to drive the cam 19 to rotate, and the top rod 20 intermittently moves upward under the action of the cam 19 to touch the micro switch 21, and the micro switch 21 sends out uniform and continuous signals in the unit time of the controller.

[0052] The barrel body 1 is also slidably connected with an impact rod 23, the impact rod 23 can cooperate with the rotating shaft of the classification wheel 8, the impact rod 23 is connected with an electromagnet 7, the electromagnet 7 is fixed on the barrel body 1, and the electromagnet 7 is electrically connected with the controller.

[0053] Specifically, the micro switch 21 sends out uniform and continuous signals in the unit time of the controller, the controller controls the on-off of the electromagnet 7 through the signals, the electromagnet 7 moves at an intermittent uniform speed, and then the rotating shaft of the classification wheel 8 is impacted to form vibration, so that powder accumulation in the classification wheel 8 is avoided to affect the preparation of microspheres.

[0054] Specifically, the impact force of the impact rod 23 on the rotating shaft of the classification wheel 8 will not cause obvious shaking of the rotating shaft, and shaking of the classification wheel 8 is avoided to affect the sealing formed with the barrel body 1.

[0055] The working principle and use process of the utility model are as follows:

[0056] S1: The microsphere preparation material enters the lower crushing area in the barrel body 1 through the feeding port 3, and the inlet pipe 2 is connected to high-speed airflow to make the material move at high speed and collide, so that microsphere particles are formed;

[0057] Meanwhile, the motor 5 drives the classification wheel 8 to rotate, so that the microspheres meeting the standard enter the upper classification area of the barrel body 1 through the classification wheel 8, and then enter the subsequent cyclone collector through the discharge pipe 6 for collection.

[0058] S2: In normal operation, the rotating shaft 15 rotates in the discharge pipe 6, the rotating shaft 15 drives the cam 19 to rotate through the clamping block 18, the top rod 20 uniformly touches the micro switch 21, the micro switch 21 uniformly sends signals to the controller in unit time, the controller controls the electromagnetic iron 7 to intermittently turn on and off, the impact rod 23 impacts the rotating shaft of the grading wheel 8 to form vibration, and powder accumulation in the grading wheel 8 is avoided.

[0059] S3: When the fine particles attached to the grading wheel 8 are blocked, the rotating speed of the rotating shaft 15 decreases, the clamping block 18 is separated from the cam 19, the cam 19 stops rotating, the top rod 20 moves away from the micro switch 21 under the action of the spring 22, the controller has no micro switch 21 signal in unit time, at this time, the controller controls the electric push rod 13 to work, the baffle 14 is lowered, and the discharge pipe 6 is blocked, the electric push rod 13 stops moving after moving to the position;

[0060] The controller makes the gas source station connected with the blowing pipe 4 work, the cleaning gas enters the movable pipe 10 through the hole 12, the sealing plate 9 is opened by using the pressure of the gas, the cleaning gas blows into the upper classification area of the barrel 1, and then enters the grading wheel 8, so that the fine particles attached to the grading wheel 8 are blown into the lower crushing area of the barrel 1 by the gas flow, so that the grading wheel 8 is cleaned.

[0061] S4: After cleaning, the controller stops the gas supply of the gas source station, the sealing plate 9 is reset under the action of the torsional spring, the controller resets the electric push rod 13, the discharge pipe 6 is in communication with the upper classification area of the barrel 1 again, at this time, the rotating shaft 15 resumes rotation, and the clamping block 18 slides into the clamping hole 16 again under the action of the centrifugal force, so that the cam 19 rotates.

[0062] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, the scope of the utility model is defined by the claims and its equivalents.

Claims

1. A kind of anti-blocking device for microsphere production, comprising barrel (1), the barrel (1) is provided with air inlet pipe (2) and feed inlet (3), it is characterized by: The bucket (1) is rotatably connected with a grading wheel (8), the grading wheel (8) is provided with a matched discharge pipe (6), the discharge pipe (6) is fixed on the bucket (1), the bucket (1) is slidably connected with a baffle (14) capable of blocking the discharge pipe (6), the baffle (14) is slidably connected with a blowing assembly capable of cleaning the grading wheel (8), the discharge pipe (6) is provided with a switch assembly capable of enabling the blowing assembly to work, and the bucket (1) is further slidably connected with an impact rod (23) matched with the grading wheel (8).

2. The microsphere production anti-blocking apparatus according to claim 1, characterized by: The switch assembly comprises a rotating shaft (15), one end of the rotating shaft (15) is provided with an impeller capable of rotating the rotating shaft (15) relative to the discharge pipe (6), the other end of the rotating shaft (15) is sleeved with a cam (19), the cam (19) is provided with a plurality of clamping holes (16), the rotating shaft (15) is slidably provided with a clamping block (18) through a first elastic member, the clamping block (18) can be matched with any one of the clamping holes (16), and the discharge pipe (6) is provided with a micro switch (21) matched with the cam (19).

3. The microsphere production anti-blocking apparatus according to claim 2, wherein: The discharge pipe (6) is slidably connected with a jacking rod (20) through a second elastic member, the lower end of the jacking rod (20) is in contact with the cam (19), and the upper end of the jacking rod (20) can be matched with the micro switch (21).

4. The microsphere production anti-blocking apparatus according to claim 1, wherein: The blowing assembly comprises a blowing pipe (4), the blowing pipe (4) is connected with a fixed pipe (11), the fixed pipe (11) is fixed in the bucket (1), the fixed pipe (11) is slidably connected with a movable pipe (10), the lower end of the movable pipe (10) is connected with the baffle (14), and the lower end of the movable pipe (10) is matched with an openable and closable sealing plate (9).

5. The microsphere production anti-jamming device according to claim 4, characterized in that: The movable pipe (10) is provided with a through hole (12) above, and the through hole (12) can be matched with the blowing pipe (4).

6. The microsphere production anti-jamming device according to claim 1, characterized in that: The rotating shaft of the grading wheel (8) extends out of the bucket (1), the impact rod (23) can be matched with the rotating shaft of the grading wheel (8), the impact rod (23) is connected with an electromagnet (7), and the electromagnet (7) is fixed on the bucket (1).

7. The microsphere production anti-jamming device according to claim 6, characterized in that: The rotating shaft of the grading wheel (8) is connected with a motor (5), and the motor (5) is fixed on the bucket (1).

8. The microsphere production anti-jamming device of claim 1, wherein: The baffle (14) is connected with an electric push rod (13), and the electric push rod (13) is fixed in the bucket (1).

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