CN113101216B

CN113101216B - High-effect coating machine with high suitability agitator

Info

Publication number: CN113101216B
Application number: CN202110428117.XA
Authority: CN
Inventors: 刘晓波
Original assignee: Aorun Shandong Pharmaceutical Co ltd
Current assignee: Aorun Shandong Pharmaceutical Co ltd
Priority date: 2021-04-21
Filing date: 2021-04-21
Publication date: 2021-12-07
Anticipated expiration: 2041-04-21
Also published as: CN113101216A

Abstract

The invention discloses a high-efficiency coating machine with a high-applicability stirrer, which comprises a pot body, wherein a plurality of groups of adjusting devices are arranged on the pot body, each adjusting device comprises a stirrer, the stirrers are vertically fixed on sliding blocks made of permanent magnets, and two ends of each sliding block are connected with supporting blocks in sliding grooves through buffer springs; the side wall of the pot body positioned on two sides of the adjusting device is provided with a plurality of first vent holes and a plurality of second vent holes, an upper air valve and a lower air valve in a penetrating manner, the outer barrel is provided with a first electromagnet, and two sides of the first electromagnet are provided with second electromagnets. The device solves the problems that the height of the stirrer in the existing coating machine can not be adjusted, the adaptability to tablet cores with different properties is poor, the hot air discharge amount can not be controlled in a targeted manner in the tablet core drying process, and the energy consumption is higher.

Description

High-effect coating machine with high suitability agitator

Technical Field

The invention belongs to the technical field of coating machines, and particularly relates to a high-efficiency coating machine with a high-applicability stirrer.

Background

The high-efficiency coating machine is an electromechanical integrated device which is high-efficiency, energy-saving, safe, clean and in line with GMP requirements, and is used for coating sugar coatings, organic film coatings, water-soluble film coatings and slow and controlled release coatings of Chinese and western medicines, tablets, pills, micro-pills, pellets, water pills, dropping pills, granular pills and the like. The coating machine is suitable for the industries of pharmacy, chemical industry, food and the like. When the coating machine works, the tablet core to be coated is arranged in a pot body of the coating machine, the pot body is driven to rotate through power, the tablet core is driven to move in the rotating process of the pot body, and meanwhile, under the action of a stirrer in the pot body, the tablet core is driven by the stirrer and is lifted, so that the tablet core continuously, continuously and repeatedly makes complex track motion. During the movement of the tablet core, the medium is automatically sprayed on the surface of the tablet core in a mist form through a spray gun, clean hot air filtered by 10 ten thousand levels is provided by a hot air system to penetrate through gaps of the tablet core, the medium sprayed on the surface of the tablet core is fully contacted with the hot air and is gradually dried, and waste gas is discharged from the bottom of a roller after being dedusted by an air duct and an exhaust fan, so that the tablet core forms a firm and smooth surface film.

The height of a stirrer in the conventional coating machine is generally a fixed value, the height of a tablet core driven and lifted by a rotating stirrer cannot be adjusted, so that excessive collision and edge collision are easily caused when the tablet core falls from a high position, the quality of the tablet core is influenced, the yield is reduced, and the adaptability to tablet cores with different properties is poor; secondly, part of hot air for drying the tablet core passes through the gap of the tablet core hole, and part of the hot air is directly exhausted from the negative pressure exhaust fan through the exhaust hole on the pot body, so that the utilization efficiency of the hot air is low; in the process of drying the tablet core, the discharge amount of hot air cannot be controlled effectively in a targeted manner, hot air energy is wasted, and the energy consumption is high.

Disclosure of Invention

The invention aims to solve the problems and provides an efficient coating machine which has the advantages of being provided with a stirrer with adjustable height, improving the adaptability to a tablet core, improving the yield, controlling the discharge amount of hot air and improving the utilization rate of the hot air.

In order to achieve the purpose, the invention provides the following technical scheme: a high-efficiency coating machine with a high-applicability stirrer comprises a pot body, wherein a plurality of groups of adjusting devices are arranged on the pot body, each adjusting device comprises a stirrer, the stirrers are vertically fixed on sliding blocks made of permanent magnets, the sliding blocks slide in sliding grooves in the side wall of the pot body, and two ends of each sliding block are connected with supporting blocks in the sliding grooves through buffer springs; a plurality of first vent holes and a plurality of second vent holes penetrate through the side wall of the pot body positioned on two sides of the adjusting device, upper air valves corresponding to the first vent holes one by one are embedded in the pot body, one end of each upper air valve penetrates through the inner wall of the sliding groove and extends to the upper part of the sliding block, and the sliding block moves upwards to extrude the upper air valves to enable the inside of the pot body to be communicated with the outside through the first vent holes; lower air valves which are in one-to-one correspondence with the second air vents are embedded in the pot body, one end of each lower air valve penetrates through the inner wall of the sliding chute and extends to the lower part of the sliding block, and the sliding block moves downwards to extrude the lower air valve to enable the interior of the pot body to be communicated with the exterior through the second air vents; an outer barrel made of ferromagnetic materials is coaxially arranged outside the pot body, and a gap between the outer barrel and the pot body is not communicated with the inner space of the pot body; the outer barrel is provided with a first electromagnet, and two sides of the first electromagnet are provided with second electromagnets.

Preferably, the adjusting device is distributed in a matrix shape by the axis of the pot body, and a buffer pad is arranged on the side surface of the stirrer on the adjusting device.

Preferably, one side of the supporting block is connected with the inner wall of the chute, an elastic sealing block is arranged on the other side of the supporting block, and the elastic sealing block is in sealing fit with the side surface of the stirrer.

Preferably, the first vent holes and the second vent holes are alternately distributed along the axial direction of the inner wall of the pot body.

Preferably, the upper air valve comprises an upper return spring, one end of the upper return spring is connected with an upper guide rod, an upper air hole is formed in the upper guide rod, an upper extrusion inclined block is arranged at one end of the upper guide rod, the upper extrusion inclined block penetrates through the inner wall of the sliding groove and extends to the outer portion of the sliding groove, and the inclined surface of the upper extrusion inclined block faces downwards.

Preferably, the lower air valve comprises a lower return spring, one end of the lower return spring is connected with a lower guide rod, a lower air hole is formed in the lower guide rod, a lower extrusion inclined block is arranged at one end of the lower guide rod, the lower extrusion inclined block penetrates through the inner wall of the sliding groove and extends to the outer portion of the sliding groove, and the inclined plane of the lower extrusion inclined block faces upwards.

Preferably, the inner wall of the outer barrel is provided with a limiting groove, the first electromagnet and the second electromagnet are both provided with limiting blocks, and the first electromagnet and the second electromagnet slide on the inner wall of the outer barrel along the limiting groove through the limiting blocks.

Preferably, when the sliding block drives the stirrer above the sliding block to move downwards to the lowest position, the upper part of the stirrer is equal to the elastic sealing block attached to the upper part of the stirrer.

Preferably, the gap between the pot body and the outer barrel is communicated with a negative pressure system, and the negative pressure system comprises a negative pressure exhaust fan and a bag type dust removal device.

Compared with the prior art, the invention has at least the following beneficial effects:

1. the invention is provided with the first electromagnet, the sliding block, the stirrer and other structures, the first electromagnet and the sliding block are magnetically attracted with each other by controlling the magnetic force between the first electromagnet and the sliding block, the stirrer on the adjusting device at the lower part of the pot body moves downwards along with the sliding block, the length of the stirrer extending into the pot body is reduced, which is equivalent to the reduction of the height of the stirrer in the pot body, at the moment, when the stirrer drives the tablet core to move, on one hand, the tablet core quantity accumulated on the stirrer is less, on the other hand, when the stirrer only can drive the tablet core accumulated above the stirrer to a lower height in the rotating process, the accumulated tablet core can be lifted from the stirrer and slides down, at the moment, as the height of the tablet core lifted and the lifted height is smaller, the tablet core with smaller hardness or adhesion can be effectively protected, and the serious collision and edge-knocking problems of the tablet core in the lifting and sliding down processes are prevented, thereby reducing the breakage of the tablet core and improving the yield.

2. The invention arranges the first electromagnet, the sliding block, the stirrer and other structures, when the core tablet to be coated has larger hardness or larger adhesion degree, or the core tablet is coated with a certain amount of medium primarily to increase the strength, the first electromagnet and the sliding block are magnetically repelled by controlling the magnetic force between the first electromagnet and the sliding block, the stirrer on the adjusting device at the lower part of the pot body moves upwards along with the sliding block, the length of the stirrer extending into the pot body is increased, which is equivalent to the height of the stirrer in the pot body is increased, when the stirrer drives the core tablet to move, the stirrer can drive the core tablet stacked above the stirrer to a higher height in the rotating process, the height of the core tablet which is lifted and raised is larger, the gap between the core tablet and the core tablet can be increased, when the distance between the core tablet and the core tablet is increased, on one hand, the medium sprayed from a spray gun can pass through the gap of the core tablet, the spraying effect of the medium on the tablet core is improved; on the other hand, the passing capacity of hot air of a drying medium from the gaps of the tablet core is improved, and the drying uniformity and the drying efficiency of the tablet core are further improved.

3. According to the coating device, through arranging the first vent hole, the second vent hole, the upper air valve, the lower air valve, the upper extrusion inclined block, the lower extrusion inclined block and other structures and combining the first electromagnet or the second electromagnet, on one hand, according to the requirement of the coated chip to be dried by hot air, hot air can be controlled to be pumped out by the negative pressure exhaust fan only from the first vent hole or the second vent hole where the chip is stacked, so that the tablet core of a coating medium is dried to the maximum extent, and the problems that the hot air is wasted and the utilization rate of heat energy is low due to the fact that part of hot air entering the pot is not pumped out from other channels by the negative pressure exhaust fan before the tablet core is dried are solved; meanwhile, when the final stage of drying the coating medium is reached, air can be discharged from the first vent hole or the second vent hole corresponding to the adjusting device in the area inside the tablet core accumulation part, and can also be discharged from the first vent hole or the second vent hole corresponding to the adjusting device in the area outside the tablet core accumulation part, so that the efficiency of discharging hot air from the pot body is accelerated, the contact time of the hot air and the coated tablet core is effectively controlled, the tablet core is prevented from being overheated, and the appearance and the quality of a coated product are ensured.

4. According to the invention, by arranging the first electromagnet, the second electromagnet, the sliding block, the elastic sealing block and other structures, when the device needs to be cleaned after working for a long time, the magnetic force of the first electromagnet or the second electromagnet is adjusted to generate a larger magnetic force on the sliding block, so that on one hand, when the sliding block drives the stirrer to move up and down, the elastic sealing block can effectively scrape off coating media, tablet core powder and the like which are adhered to the surface of the stirrer, and the stirrer is convenient to clean; on the other hand, when the sliding block drives the stirrer above the sliding block to move downwards to the lowest position, the upper part of the stirrer is equal to the elastic sealing block attached to the upper part of the stirrer. At this moment, the stirrer is no longer located inside the pot body, the stirrer cannot influence the cleaning of the inside of the pot body, convenience is created for cleaning the inside of the pot body, and the cleaning effect of the pot body is improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the pot body and the adjusting device of the present invention;

FIG. 2 is a front view of the pot body, the outer cylinder and the upper adjusting device thereof;

FIG. 3 is an enlarged view of a portion of the adjustment device shown at A in FIG. 2;

FIG. 4 is a schematic view of the upper valve structure of the present invention;

FIG. 5 is a schematic view of the lower valve structure of the present invention;

FIG. 6 is a schematic view of the upper air valve, the lower air valve and the adjusting device of the present invention.

In the figure: 1. a pan body; 2. an adjustment device; 201. a stirrer; 202. a slider; 203. a buffer spring; (ii) a 3. A chute; 4. a support block; 5. a first vent hole; 6. a second vent hole; 7. an air feeding valve; 701. an upper return spring; 702. an upper guide rod; 703. air holes are arranged; 704. upwards extruding the inclined block; 8. a lower air valve; 801. a lower return spring; 802. a lower guide rod; 803. a lower air hole; 804. downward extruding the inclined block; 9. an outer cylinder; 10. a first electromagnet; 11. a second electromagnet; 12. an elastic sealing block; 13. a limiting groove; 14. and a limiting block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

As shown in fig. 1 to 6, the invention provides a high-efficiency coating machine with a high-applicability stirrer, which comprises a pot body 1, wherein a plurality of groups of adjusting devices 2 are arranged on the pot body 1, each adjusting device 2 comprises a stirrer 201, when an external driving component drives the pot body 1 to rotate, the pot body 1 drives the stirrer 201 and a tablet core to be coated to rotate, and meanwhile, after the tablet core is driven to rise to a certain height by the stirrer 201, the tablet core slides down from the stirrer 201, so that the tablet core generates a raising effect by the stirrer 201, and in the process of raising and sliding the tablet core, the tablet core continuously, continuously and repeatedly makes complex track motion, and a gap is generated between the tablet cores, so that coating media are favorably sprayed on the tablet core through a spray gun, and the media are uniformly sprayed on the tablet core; on the other hand, hot air for drying the medium can pass through the gaps of the tablet core, so that the drying uniformity and the drying efficiency of the tablet core are improved.

The stirrer 201 is vertically fixed on a sliding block 202 made of a permanent magnet material, an outer cylinder 9 made of a ferromagnetic material is coaxially arranged outside the pot body 1, and a first electromagnet 10 is arranged on the outer cylinder 9. When the first electromagnet 10 is electrified to generate magnetism, the pot body 1 rotates, the outer cylinder 9 is fixed, the adjusting device 2 on the pot body 1 rotates along with the pot body 1, when the adjusting device 2 enters the magnetic force range of the first electromagnet 10, the first electromagnet 10 and the sliding block 202 made of permanent magnet materials on the adjusting device 2 generate magnetic force action, different magnetism is given to the first electromagnet 10 by changing the current direction led into the first electromagnet 10, so that the first electromagnet 10 and the sliding block 202 generate magnetic force which is mutually attracted or mutually repelled, the sliding block 202 slides in the sliding groove 3 on the side wall of the pot body 1, and the sliding block 202 drives the stirrer 201 above the sliding block 202 to synchronously move; during the coating process of the tablet core, a plurality of tablet cores are generally stacked at the lower part of the pot body 1, the tablet cores are magnetically attracted with each other by controlling the magnetic force between the first electromagnet 10 and the sliding block 202, the stirrer 201 on the adjusting device 2 at the lower part of the pot body 1 moves downwards along with the sliding block 202, the length of the stirrer 201 extending into the pot body 1 is reduced, which is equivalent to the reduction of the height of the stirrer 201 in the pot body 1, at this time, when the stirrer 201 drives the tablet cores to move, on one hand, the quantity of the tablet cores stacked on the stirrer 201 is small, on the other hand, when the stirrer 201 can only drive the tablet cores stacked above the stirrer to a lower height in the rotating process, the stacked tablet cores can slide down from the stirrer 201 and are lifted, at this time, because the heights of the tablet cores being lifted and lifted are smaller, the tablet cores with smaller hardness or adhesion can be effectively protected, and the problems of more serious collision and edge collision of the tablet cores in the lifting and sliding processes can be prevented, thereby reducing the breakage of the tablet core and improving the yield.

When the core tablet to be coated has larger hardness or larger adhesion degree, or the core tablet is subjected to primary coating with a certain amount of medium to increase the strength of the core tablet, the magnetic force between the first electromagnet 10 and the sliding block 202 is controlled to make the core tablet and the sliding block magnetically repel each other, the stirrer 201 on the adjusting device 2 at the lower part of the pot body 1 moves upwards along with the sliding block 202, the length of the stirrer 201 extending into the pot body 1 is increased, which is equivalent to the height of the stirrer 201 in the pot body 1 being increased, at this time, when the stirrer 201 drives the core tablet to move, the core tablet quantity accumulated on the stirrer 201 is increased on one hand, and when the core tablet accumulated above the stirrer 201 can be driven to a higher height in the rotating process of the stirrer 201, when the accumulated core tablet slides down from the stirrer 201 and is lifted, at this time, because the height of the core tablet being lifted and lifted is larger, during the lifting process of the core tablet, the gap between the tablet core and the tablet core can be increased, and when the distance between the tablet core and the tablet core is increased, on one hand, the medium sprayed from a spray gun can pass through the gap of the tablet core and be uniformly sprayed on the tablet core, and the spraying effect of the medium on the tablet core is improved; on the other hand, the passing capacity of hot air of a drying medium from the gaps of the tablet core is improved, and the drying uniformity and the drying efficiency of the tablet core are further improved.

Two ends of the sliding block 202 are connected with the supporting block 4 in the sliding chute 3 through a buffer spring 203; when the sliding block 202 drives the stirrer 201 above the sliding block to move downwards or upwards under the action of external force, the buffer spring 203 is correspondingly stretched or compressed, so that preparation is made for the sliding block 202 and the stirrer 201 to complete corresponding functions; when the external force disappears, the buffer spring 203 recovers the elastic deformation, and the sliding block 202 drives the stirrer 201 to return to the initial position, so that preparation is made for the sliding block 202 and the stirrer 201 to complete corresponding functions.

The adjusting device 2 is distributed in a matrix shape by the axis of the pot body 1, so that the stirring uniformity of the stirrer 201 on the adjusting device 2 to the tablet core is improved. The quantity of the adjusting device 2 is reasonably controlled, so that a better stirring effect can be guaranteed, excessive stirring is prevented, the tablet core is broken, and the product percent of pass is reduced. Be equipped with the blotter on the agitator 201 side on adjusting device 2, can play the cushioning effect to the tablet core that slides after raising, reduce the breakage rate of tablet core, improve the product percent of pass.

The clearance between the outer cylinder 9 and the pot body 1 is not communicated with the inner space of the pot body 1, so that the hot air in the pot body 1 is prevented from being uncontrolled, and the heat energy of the hot air is wasted when the hot air directly enters the clearance between the outer cylinder 9 and the pot body 1 from the inner space of the pot body 1.

A plurality of first vent holes 5 and a plurality of second vent holes 6 penetrate through the side wall of the pot body 1 positioned at two sides of the adjusting device 2, and the first vent holes 5 and the second vent holes 6 are alternately distributed along the axial direction of the inner wall of the pot body 1. The first vent hole 5 is used for communicating the inside and the outside of the pot body 1 when the sliding block 202 moves upwards in combination with the upper air valve 7, so that hot air for drying the tablet core passes through the gap of the tablet core and is finally discharged from the first vent hole 5; the second vent hole 6 is used for communicating the inside and the outside of the pot body 1 when the sliding block 202 moves downwards in combination with the lower air valve 8, so that the hot air for drying the tablet core passes through the gap of the tablet core and is finally discharged from the second vent hole 6.

An upper air valve 7 which is in one-to-one correspondence with the first vent holes 5 is embedded in the pot body 1, and one end of the upper air valve 7 penetrates through the inner wall of the sliding chute 3 and extends to the upper part of the sliding block 202; specifically, the upper air valve 7 includes an upper return spring 701, one end of the upper return spring 701 is connected with an upper guide rod 702, the upper guide rod 702 is provided with an upper air hole 703, one end of the upper guide rod 702 is provided with an upper extrusion inclined block 704, the upper extrusion inclined block 704 penetrates through the inner wall of the chute 3 and extends to the outside of the chute 3, and the inclined surface of the upper extrusion inclined block 704 faces downward.

When the first electromagnet 10 generates magnetic repulsion to the sliding block 202, the sliding block 202 moves upwards and extrudes the upper extrusion inclined block 704, the upper extrusion inclined block 704 drives the upper guide rod 702 to compress the upper return spring 701 and retract towards the inside of the pot body 1, so that the upper air hole 703 on the upper guide rod 702 is communicated with the first air hole 5, the sliding block 202 moves upwards to extrude the upper air valve 7 to enable the inside of the pot body 1 to be communicated with the outside through the first air hole 5, and at the moment, hot air in the pot body 1 is discharged out of the pot body 1 through the first air hole 5 and the upper air hole 703, so that the flow of the hot air is realized; by adjusting the position of the first electromagnet 10 to correspond to the stacking position of the tablet core, the movement of all the sliding blocks 202 at the stacking position of the tablet core is controlled, and the hot air in the pot body 1 is controlled to be discharged from the first vent holes 5 and the upper vent holes 703 at the stacking position of the tablet core. When the sliding block 202 on the adjusting device 2 moves out of the magnetic force range of the first electromagnet 10, the magnetic force of the first electromagnet 10 on the sliding block 202 disappears, under the action of the buffer spring 203 recovering the elastic deformation, the extrusion of the sliding block 202 on the upper extrusion inclined block 704 is released, the extrusion of the upper return spring 701 on the upper extrusion inclined block 704 is released after the upper extrusion inclined block 704 is not stressed, the upper return spring 701 recovers the elastic deformation and drives the upper guide rod 702 to reset, the upper vent hole 703 is not communicated with the first vent hole 5 after the upper guide rod 702 is reset, the hot air in the pot body 1 cannot be discharged from the first vent holes 5 at two sides of the adjusting device 2 outside the magnetic force range of the first electromagnet 10 (namely outside the tablet core accumulation position), the hot air used for drying the tablet core in the pot body 1 can be discharged from the first vent holes 5 at two sides of the adjusting device 2 corresponding to the tablet core accumulation position, and thus the tablet core wrapped with the medium can be dried to the maximum extent, the problems that part of hot air entering the pot body 1 is not dried yet and is pumped away from other channels by the negative pressure exhaust fan, so that the hot air is wasted and the utilization rate of hot energy is not high are solved.

According to the same principle, lower air valves 8 which are in one-to-one correspondence with the second vent holes 6 are embedded in the pot body 1, and one end of each lower air valve 8 penetrates through the inner wall of the sliding groove 3 and extends to the lower part of the sliding block 202; specifically, the lower air valve 8 includes a lower return spring 801, one end of the lower return spring 801 is connected with a lower guide rod 802, a lower air hole 803 is arranged on the lower guide rod 802, one end of the lower guide rod 802 is provided with a lower extrusion inclined block 804, the lower extrusion inclined block 804 penetrates through the inner wall of the chute 3 and extends to the outside of the chute 3, and the inclined plane of the lower extrusion inclined block 804 faces upward.

When the first electromagnet 10 generates magnetic attraction to the sliding block 202, the sliding block 202 moves downwards and extrudes the lower extrusion inclined block 804, the lower extrusion inclined block 804 drives the lower guide rod 802 to compress the lower return spring 801 and retract towards the inside of the pot body 1, so that the lower air hole 803 on the lower guide rod 802 is communicated with the second air hole 6, the sliding block 202 moves downwards and extrudes the lower air valve 8 to enable the inside of the pot body 1 to be communicated with the outside through the second air hole 6, and at the moment, hot air in the pot body 1 is discharged out of the pot body 1 through the second air hole 6 and the lower air hole 803, so that the flow of the hot air is realized; the position of the first electromagnet 10 is adjusted to correspond to the stacking position of the tablet core, so that the movement of all the sliding blocks 202 at the stacking position of the tablet core is controlled, and the hot air in the pot body 1 is controlled to be discharged from the second vent holes 6 and the lower vent holes 803 at the stacking position of the tablet core. When the sliding block 202 on the adjusting device 2 moves out of the magnetic force range of the first electromagnet 10, the magnetic force of the first electromagnet 10 on the sliding block 202 disappears, under the action of the buffer spring 203 recovering the elastic deformation, the extrusion of the sliding block 202 on the lower extrusion inclined block 804 is released, the extrusion of the lower reset spring 801 is released after the lower extrusion inclined block 804 is not stressed, the lower reset spring 801 recovers the elastic deformation and drives the lower guide rod 802 to reset, the lower vent hole 803 is not communicated with the second vent hole 6 after the lower guide rod 802 resets, the hot air in the pot body 1 cannot be discharged from the second vent holes 6 at two sides of the adjusting device 2 outside the magnetic force range of the first electromagnet 10 (namely outside the tablet core stacking position), the hot air used for drying the tablet core in the pot body 1 can be discharged from the second vent holes 6 at two sides of the adjusting device 2 corresponding to the tablet core stacking position, and thus the hot air can be ensured to dry the tablet core wrapped with the medium to the maximum degree, the problems that part of hot air entering the pot body 1 is not dried yet and is pumped away from other channels by the negative pressure exhaust fan, so that the hot air is wasted and the utilization rate of hot energy is not high are solved.

One side of the supporting block 4 is connected with the inner wall of the chute 3, the other side of the supporting block 4 is provided with an elastic sealing block 12, and the elastic sealing block 12 is in sealing fit with the side surface of the stirrer 201; on one hand, the hot air can be effectively prevented from being pumped away from the space between the elastic sealing block 12 and the stirrer 201 to cause heat loss; on the other hand, when the stirrer 201 moves up and down, the elastic sealing block 12 can effectively scrape off the coating medium, the tablet core powder and the like adhered to the surface of the stirrer 201, so that the stirrer 201 is convenient to clean.

When the final stage of drying the coating medium is reached, the contact time of the hot air and the coated tablet core needs to be controlled, so that the phenomenon that the tablet core is overheated to influence the appearance and the quality of a coated product due to the fact that the contact time of the hot air and the coated tablet core is too long is prevented. The second electromagnets 11 are arranged at two sides of the first electromagnet 10, the position of the second electromagnet 11 is adjusted to enable the second electromagnet 11 to be positioned in the area outside the tablet core stacking position, then the second electromagnet 11 is electrified to generate magnetic force, the second electromagnet generating magnetic force can generate magnetic attraction force or magnetic repulsion force on the sliding block 202 rotating through the magnetic force range thereof, so that the sliding block 202 moves in the chute 3, the moving sliding block 202 extrudes the upper extrusion inclined block 704 or the lower extrusion inclined block 804, and the inner part of the pot body 1 is communicated with the outside through the first vent hole 5 and the upper vent hole 703 or the second vent hole 6 and the lower vent hole 803 through the upper air valve 7 or the lower air valve 8, so that air can be discharged through the first vent hole 5 or the second vent hole 6 corresponding to the adjusting device 2 in the magnetic force range of the second electromagnet 11 (i.e. the area outside the stacking position), thus, the path of the hot air discharged from the pot body 1 is increased, the hot air can be discharged from the first vent hole 5 or the second vent hole 6 corresponding to the adjusting device 2 in the area inside the tablet core accumulation part, and can also be discharged from the first vent hole 5 or the second vent hole 6 corresponding to the adjusting device 2 in the area outside the tablet core accumulation part, so that the efficiency of discharging hot air from the inside of the pot body 1 is accelerated, the contact time of the hot air and the coated tablet core is effectively controlled, the tablet core is prevented from being overheated, and the appearance and the quality of a coated product are ensured.

A limiting groove 13 is formed in the inner wall of the outer cylinder 9, limiting blocks 14 are arranged on the first electromagnet 10 and the second electromagnet 11, and the first electromagnet 10 and the second electromagnet 11 slide on the inner wall of the outer cylinder 9 along the limiting groove 13 through the limiting blocks 14; under the condition of no power supply, the first electromagnet 10 or the second electromagnet 11 is moved to a required position, namely the first electromagnet 10 is moved to the position of the tablet core accumulation, and then the power supply is carried out to make the magnetic attraction of the first electromagnet 10 on the outer barrel 9 and prepare for the magnetic force of the first electromagnet to act on the sliding block 202 which rotates to be within the magnetic force range of the first electromagnet; the second electromagnet 11 is moved to a region outside the position of the core stack and is then energized to magnetically attach it to the outer cylinder 9 and prepare it for its magnetic force to act on the slide 202 which is rotated to within its magnetic force range.

The gap between the pot body 1 and the outer cylinder 9 is communicated with a negative pressure system, and the negative pressure system comprises a negative pressure exhaust fan and a bag type dust removal device. After hot air generated by the heating device enters the pot body 1, the hot air passes through gaps of the tablet cores under the action of the negative pressure exhaust fan and is exhausted from the first vent holes 5 or the second vent holes 6 where the tablet core areas are located or directly from the first vent holes 5 or the second vent holes 6, the hot air pumped out by the negative pressure exhaust fan is filtered by the bag type dust removal device, and the hot air with residual heat, which is fully filtered to remove tablet core dust and fragments, is recycled.

Wherein above-mentioned heating device includes steam heating device and electric heater unit, and steam heating device and electric heater unit can heat air intake fan alone or simultaneously, make the air inlet heated the back and enter into the pot body 1 in to the tablet core carry out the heat drying. The steam heating device adopts a fan to blow the steam exchanger, so that the inlet air exchanges heat with the steam exchanger to be heated to form hot air for use. However, the steam exchanger cannot work effectively in time due to the fact that steam pressure supplied by a thermal power plant is reduced or fails under the control of atmospheric pollution in winter. When the heating efficiency of the steam heating device cannot reach a preset threshold value, starting the electric heating mechanism to heat the air; the electric heating device comprises a first electric heating device and a second electric heating device; when the electric heating mechanism starts to work, the first electric heating device starts heating firstly, the second electric heating device starts heating after the first electric heating device works for a preset time t, t =10-15s, the first electric heating device and the second electric heating device delay starting heating, impact and voltage drop of a large current to a power grid caused by simultaneous starting of the first electric heating device and the second electric heating device can be prevented, and normal work of other electric devices is prevented from being influenced. After the temperature of hot-air reaches preset temperature T, electric heating mechanism stops heating, when the temperature of hot-air is less than preset temperature T, first electric heater unit or second electric heater unit start-up heating, until the hot-air temperature reaches preset temperature T, so can guarantee that the hot-air lasts in comparatively stable temperature range, make in the pot body 1 heat preservation state, improve the drying effect of dry capsule core. When the first electric heating device or the second electric heating device starts heating to keep the temperature of the pot body 1, correspondingly, the other group of second electric heating devices or the first electric heating devices which are not started are started and heated after the interval time t, t =10-15s, the second electric heating devices or the first electric heating devices are started and heat the coating medium, so that the coating medium is continuously at a relatively ideal temperature, the effect of spraying the coating medium from the spray gun is further improved, the coating quality of the coating medium on the tablet core is improved, the quality of a coating product is improved, and the utilization rate of equipment can be improved to the maximum extent.

When the high-temperature steam supplied by the thermal power plant is enough and the heating efficiency of the steam heating device reaches a preset threshold value, the steam heating device can heat the pot body 1 and the coating medium, and the electric heating device is in an idle state. At this time, the electrical heating device is operated by the PLC controller, and the electrical heating device heats the heat dissipation mechanism, which uses a fin radiator. In the process, the electric heating device is started to heat and generate heat through the PLC, the air blown in by the air supply fan is heated by the electric heating device to form hot air, the hot air is uniformly blown to the peripheral external environment of the coating machine through the heat dissipation mechanism, the temperature of the external environment is increased, the working environment of the coating machine is prevented from being low, the working state of relevant equipment is prevented from being influenced, and meanwhile warm working conditions can be created for workers in the environment.

In order to exert the function of the electric heating device to the maximum extent, the control device also comprises a first electric control valve on a first channel, a second electric control valve on a second channel and a third electric control valve on a third channel, wherein the first electric control valve, the second electric control valve and the third electric control valve are connected with the first electric heating device. The first electric heating device can be communicated with the inside of the pot body 1 through the first channel and the first electric control valve, so that the first electric heating device can heat the inside of the pot body 1; the first electric heating device can be communicated with the heat-preserving barrel for storing the coating medium through the second channel and the second electric control valve, when the interior of the pot body 1 is in a heat-preserving stage, and when the second electric heating device is used for heating and preserving heat of the interior of the pot body 1, the first electric heating device works and heats the heat-preserving barrel for storing the coating medium through the second channel and the second electric control valve, so that the coating medium is continuously at a relatively ideal temperature, the effect of spraying the coating medium from the spray gun is further improved, the coating quality of the coating medium on the tablet core is improved, the quality of a coating product is improved, and the utilization rate of equipment can be improved to the maximum extent; when the steam quantity is enough, the steam exchanger can provide enough heat for the pan body 1 and the coating medium, the first electric heating device works and generates heat which is transferred to the heat dissipation mechanism through the third channel and the third electric control valve, and the heat is uniformly diffused to the surrounding environment of the coating machine through the heat dissipation mechanism, so that a comfortable and warm working environment is created for workers and related equipment in the environment.

As described above, the control device further includes a fourth electric control valve on the fourth channel connected to the second electric heating device, a fifth electric control valve on the fifth channel, and a sixth electric control valve on the sixth channel. The second electric heating device can be communicated with the inside of the pot body 1 through a fourth channel and a fourth electric control valve, so that the second electric heating device can heat the inside of the pot body 1; the second electric heating device can be communicated with the heat-preserving barrel for storing the coating medium through the fifth channel and the fifth electric control valve, when the interior of the pot body 1 is in a heat-preserving stage, and when the first electric heating device is used for heating and preserving heat of the interior of the pot body 1, the second electric heating device works and heats the heat-preserving barrel for storing the coating medium through the fifth channel and the fifth electric control valve, so that the coating medium is continuously at a relatively ideal temperature, the effect of spraying the coating medium from the spray gun is further improved, the coating quality of the coating medium on the tablet core is improved, the quality of a coating product is improved, and the utilization rate of equipment can be improved to the greatest extent; when the steam quantity is enough, the steam exchanger can provide enough heat for the pan body 1 and the coating medium, the second electric heating device works and generates heat which is transferred to the heat dissipation mechanism through the sixth channel and the sixth electric control valve, and the heat is uniformly diffused to the surrounding environment of the coating machine through the heat dissipation mechanism, so that a comfortable and warm working environment is created for workers and related equipment in the environment.

Example 2

After a long time of work, more coating media, tablet core powder and the like are generally adhered to the stirrer 201 and are difficult to remove; and when different types of tablet cores need to be coated with different media, the pot body 1 needs to be thoroughly cleaned, and the inside of the pot body 1 and the stirrer 201 are inconvenient to clean due to the blocking factor of the stirrer 201.

At this time, the magnetic force of the first electromagnet 10 or the second electromagnet 11 is adjusted to generate a larger magnetic force on the sliding block 202, so that on one hand, when the sliding block 202 drives the stirrer 201 to move up and down, the elastic sealing block 12 can effectively scrape off the coating medium, the tablet core powder and the like adhered to the surface of the stirrer 201, and the stirrer 201 is convenient to clean; on the other hand, when the sliding block 202 drives the stirrer 201 above the sliding block to move downwards to the lowest position, the upper part of the stirrer 201 is equal to the height of the elastic sealing block 12 attached to the upper part of the stirrer 201. At this moment, the stirrer 201 is no longer located inside the pot body 1, the stirrer 201 cannot influence the cleaning inside the pot body 1, convenience is created for cleaning the inside of the pot body 1, and the cleaning effect of the pot body 1 is improved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A high-efficiency coating machine with a high-applicability stirrer comprises a pot body (1), and is characterized in that a plurality of groups of adjusting devices (2) are arranged on the pot body (1), each adjusting device (2) comprises a stirrer (201), the stirrers (201) are vertically fixed on a sliding block (202) made of a permanent magnet material, the sliding block (202) slides in a sliding groove (3) in the side wall of the pot body (1), and two ends of the sliding block (202) are connected with supporting blocks (4) in the sliding groove (3) through buffer springs (203);

a plurality of first vent holes (5) and a plurality of second vent holes (6) penetrate through the side wall of the pot body (1) positioned on two sides of the adjusting device (2), upper air valves (7) which are in one-to-one correspondence with the first vent holes (5) are embedded in the pot body (1), one ends of the upper air valves (7) penetrate through the inner wall of the sliding groove (3) and extend to the upper part of the sliding block (202), and the sliding block (202) moves upwards to extrude the upper air valves (7) to enable the inside of the pot body (1) to be communicated with the outside through the first vent holes (5); lower air valves (8) which are in one-to-one correspondence with the second vent holes (6) are embedded in the pot body (1), one end of each lower air valve (8) penetrates through the inner wall of the sliding groove (3) and extends to the lower part of the sliding block (202), and the sliding block (202) moves downwards to extrude the lower air valves (8) to enable the inside of the pot body (1) to be communicated with the outside through the second vent holes (6);

an outer barrel (9) made of ferromagnetic materials is coaxially arranged outside the pot body (1), and a gap between the outer barrel (9) and the pot body (1) is not communicated with the inner space of the pot body (1); a first electromagnet (10) is arranged on the outer cylinder (9), and second electromagnets (11) are arranged on two sides of the first electromagnet (10); the first electromagnet (10) is moved to the position of the core stack without applying electricity, and then is energized to magnetically attach it to the outer cylinder (9) and to prepare it for its magnetic force to act on the slider (202) which is rotated to within its magnetic force range.

2. A high performance coating machine with high availability agitator as claimed in claim 1 wherein: the adjusting device (2) is distributed in a matrix shape with the axis of the pot body (1), and a buffer pad is arranged on the side surface of the stirrer (201) on the adjusting device (2).

3. A high performance coating machine with high availability agitator as claimed in claim 1 wherein: one side of the supporting block (4) is connected with the inner wall of the sliding groove (3), an elastic sealing block (12) is arranged on the other side of the supporting block (4), and the elastic sealing block (12) is in sealing fit with the side surface of the stirrer (201).

4. A high performance coating machine with high availability agitator as claimed in claim 1 wherein: the first vent holes (5) and the second vent holes (6) are axially and alternately distributed along the inner wall of the pot body (1).

5. A high performance coating machine with high availability agitator as claimed in claim 1 wherein: go up pneumatic valve (7) and include reset spring (701), it is connected with upper guide rod (702) to go up reset spring (701) one end, be equipped with air vent (703) on upper guide rod (702), upper guide rod (702) one end is equipped with extrusion sloping block (704), it passes to go up extrusion sloping block (704) the inner wall of spout (3) and extend to the outside of spout (3), the inclined plane of going up extrusion sloping block (704) is towards the below.

6. A high performance coating machine with high availability agitator as claimed in claim 1 wherein: lower pneumatic valve (8) are including return spring (801) down, return spring (801) one end is connected with down guide arm (802) down, be equipped with down gas pocket (803) down on guide arm (802) down, guide arm (802) one end is equipped with down extrudees sloping block (804) down, it passes to extrude sloping block (804) down the inner wall of spout (3) and extend to the outside of spout (3), the inclined plane of extruding sloping block (804) down is towards the top.

7. A high performance coating machine with high availability agitator as claimed in claim 1 wherein: be equipped with spacing groove (13) on the inner wall of urceolus (9), first electromagnet (10) with all be equipped with stopper (14) on second electromagnet (11), first electromagnet (10) with second electromagnet (11) pass through stopper (14) along spacing groove (13) are in sliding motion on the inner wall of urceolus (9).

8. A high performance coating machine with high availability agitator as claimed in claim 1 wherein: when the sliding block (202) drives the stirrer (201) above the sliding block to move downwards to the lowest position, the upper part of the stirrer (201) is equal to the elastic sealing block (12) attached to the stirrer.

9. A high performance coating machine with high availability agitator as claimed in claim 1 wherein: the pot body (1) and the gap of the outer cylinder (9) are communicated with a negative pressure system, and the negative pressure system comprises a negative pressure exhaust fan and a bag type dust removal device.