CN111649573B - High-efficient drying equipment of herbal pieces- - Google Patents
High-efficient drying equipment of herbal pieces- Download PDFInfo
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- CN111649573B CN111649573B CN202010315184.6A CN202010315184A CN111649573B CN 111649573 B CN111649573 B CN 111649573B CN 202010315184 A CN202010315184 A CN 202010315184A CN 111649573 B CN111649573 B CN 111649573B
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- chinese medicine
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
- F26B17/02—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by belts carrying the materials; with movement performed by belts or elements attached to endless belts or chains propelling the materials over stationary surfaces
- F26B17/04—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by belts carrying the materials; with movement performed by belts or elements attached to endless belts or chains propelling the materials over stationary surfaces the belts being all horizontal or slightly inclined
- F26B17/045—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by belts carrying the materials; with movement performed by belts or elements attached to endless belts or chains propelling the materials over stationary surfaces the belts being all horizontal or slightly inclined the material on the belt being agitated, dispersed or turned over by mechanical means, e.g. by vibrating the belt, by fixed, rotating or oscillating elements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/02—Applications of driving mechanisms, not covered by another subclass
Abstract
The invention relates to the technical field of processing of traditional Chinese medicine decoction pieces, in particular to high-efficiency drying equipment for traditional Chinese medicine decoction pieces, which comprises a drying box, a stepping feeding mechanism, an air heater and a PLC (programmable logic controller), wherein support legs are arranged on the lower surface of the drying box; the step-by-step conveying of the conveying belt is controlled by the step motor, the left end in the drying box is firstly dried, then the traditional Chinese medicine decoction pieces laid on the conveying belt are turned under the action of the fan-shaped turning hopper, the traditional Chinese medicine decoction pieces on the conveying belt can be turned upside down and upside down under the action of the traditional Chinese medicine decoction piece turning mechanism, the traditional Chinese medicine decoction pieces are spread on the conveying belt after being turned, and the traditional Chinese medicine decoction pieces enter the right end of the drying box along with the conveying of the conveying belt to be dried for the second time, so that the drying efficiency is high, and the drying effect is excellent.
Description
Technical Field
The invention relates to the technical field of processing of traditional Chinese medicine decoction pieces, in particular to high-efficiency drying equipment for the traditional Chinese medicine decoction pieces.
Background
The traditional Chinese medicine decoction pieces are prepared from traditional Chinese medicines according to the traditional Chinese medicine theory and the traditional Chinese medicine preparation method, and can be directly used as traditional Chinese medicines in traditional Chinese medicine clinical practice. During the processing of the traditional Chinese medicine decoction pieces, the traditional Chinese medicine decoction pieces are firstly sliced, then are put into cleaning equipment for cleaning and impurity removal, and finally are put into drying equipment for drying. At present, a drying device used in the processing process of traditional Chinese medicine decoction pieces is a small-sized drying oven, when the traditional Chinese medicine decoction pieces are dried, an operator lays the drying device in a drying screen frame, then puts the drying screen frame into the drying oven to be dried by hot air, and after the drying is finished, opens a box door, cools the drying screen frame and takes out the drying screen frame from the drying oven, so that the drying efficiency is low.
The utility model with the patent number of CN207365655U discloses a dryer for traditional Chinese medicine preparation, which comprises a feed inlet, a blanking buffer plate, a steam collecting pipe, a communicating pipe, a steam collecting cover, a steam rising port, a steam collecting chamber, a condensing device, a condensation water outlet pipe, a condensed water collecting box, a water outlet, a material taking port, a material storage chamber, a material discharge port, a driven pulley, a driving pulley, a motor belt, a motor, a driving gear, a microwave radiation drier, a conveying belt, a drying chamber, bottom feet, a pulley supporting seat and a second driven pulley; although the dryer realizes streamlined drying of traditional Chinese medicines through the conveying belt, the drying efficiency is high in theory, in the actual drying process of the traditional Chinese medicine decoction pieces, the conveying belt blocks hot air flow from contacting with the traditional Chinese medicines, so that the drying effect is poor; in addition, in the process of conveying the traditional Chinese medicine by using the conveying belt, the traditional Chinese medicine decoction pieces are directly paved on the conveying belt, and the traditional Chinese medicine decoction pieces on the conveying belt cannot be turned over after entering the drying chamber, so that the drying effect of the traditional Chinese medicine decoction pieces on the upper surface is better, and the traditional Chinese medicine decoction pieces on the inner layer which are directly contacted with the conveying belt cannot be effectively dried. Therefore, aiming at the defects of the traditional Chinese medicine decoction piece dryer, the design of the high-efficiency drying equipment for the Chinese medicine decoction pieces, which can effectively solve the problems, is a technical problem to be solved.
Disclosure of Invention
The invention aims to overcome the defect that the traditional Chinese medicine decoction pieces on a conveying belt cannot be turned over after the traditional Chinese medicine decoction piece dryer enters a drying chamber, and the traditional Chinese medicine decoction pieces are dried unevenly on the upper and lower sides, and designs a high-efficiency drying device capable of turning the traditional Chinese medicine decoction pieces on the conveying belt.
The invention is realized by the following technical scheme:
a high-efficient drying equipment of herbal pieces-for-chinese medicine, including stoving case, step-by-step feeding mechanism, air heater and PLC controller, the lower surface of stoving case is provided with the stabilizer blade, the PLC controller sets up the lateral surface at the stoving case, the rectangle mouth has been seted up to the left and right sides face of stoving case, step-by-step feeding mechanism includes conveying frame, conveyer belt and step motor, the conveying frame runs through two rectangle mouths and sets up about, the conveyer belt sets up in the conveying frame, be provided with the speed reducer on the output shaft of step motor, the output shaft of speed reducer is connected with the drive roll on the conveying frame, the surface of conveyer belt evenly has seted up a plurality of bleeder vents, two the air heater is fixed to be set up at the left and right sides both ends of stoving case upper surface, be connected with the hot-air calandria, the lower extreme of hot-air calandria passes the roof of stoving case, the end part of a hot air exhaust pipe positioned in the drying box is connected with a uniformly distributed exhaust pipe, the lower surface of the uniformly distributed exhaust pipe is provided with an air outlet facing a conveyor belt, the bottom wall of the drying box positioned right below the uniformly distributed exhaust pipe is provided with a plurality of air outlet holes, and a traditional Chinese medicine decoction piece overturning mechanism is arranged in the drying box positioned between the left hot air blower and the right hot air blower;
wherein, the turnover mechanism of the traditional Chinese medicine decoction pieces comprises a fan-shaped turning hopper, the front end and the rear end of the fan-shaped turning hopper are connected with a rotating shaft, the front end and the rear end of the fan-shaped turning hopper below the rotating shaft are both connected with a blocking rod, the inner wall of the lower end of the fan-shaped turning hopper is provided with an arc-shaped turning plate, the front inner wall and the rear inner wall of the drying box are both provided with two fixed blocks, the two fixed blocks are symmetrically arranged by rotating 180 degrees around the rotating shaft, the fixed blocks are connected with springs, the end parts of the springs are connected with stop blocks which are positioned on the same circular line with the blocking rods, the rotating shaft is rotatably connected with the rear side wall of the drying box at the rear end, the front side surface of the drying box at the rotating shaft at the front end is connected with a cylinder, a rotating cavity is arranged inside the cylinder, the front inner wall and the rear inner wall of the rotating cavity are both provided with bearings, a rotating rod is arranged between the two bearings, and a plurality of fan blades are uniformly arranged on the circumference surface of the rotating rod in the rotating cavity, the outer ends of the fan blades are attached to the inner wall of the rotating cavity, the rear end of the rotating rod penetrates through the cylinder to be connected with the rotating shaft through the outer wall of the drying box, a piston cylinder is fixed at the left end of the front side surface of the drying box, a hydraulic cylinder is arranged at the front side surface of the drying box at the left end of the piston cylinder, a sealing piston is arranged in the piston cylinder, a piston rod of the hydraulic cylinder is connected with the sealing piston, the right end of the piston cylinder is connected with a first compressed air pipe, the right end of the first compressed air pipe is connected with the upper end of the outer circumferential surface on the left side of the cylinder, the upper end of the outer circumference surface at the right side of the cylinder is connected with a second compressed air pipe, the end part of the second compressed air pipe extends into the drying box, the end part of a second compressed air pipe extending into the drying box passes through the conveying rack and is arranged between the conveying belts, and the end part of the second compressed air pipe is arranged in a sealing way, and the lower surface of the second compressed air pipe is provided with a compressed air exhaust hole which is just opposite to the conveying belt.
As a further improvement of the above scheme, a uniform blanking device is arranged above the left end of the stepping feeding mechanism, the uniform blanking device comprises a hopper, a rotary drum and a driving motor, a material homogenizing chamber is arranged inside the rotary drum, the lower end of the hopper is communicated with the upper end of the material homogenizing chamber, a blanking port is arranged right below the rotary drum, the driving motor is fixed on the end surface of the rotary drum, the end part of an output shaft of the driving motor, which extends into the material homogenizing chamber, is connected with a round rod, and a plurality of material stirring plates are uniformly arranged on the outer circumferential surface of the round rod; the driving motor and the stepping motor synchronously rotate, and when the stepping motor drives the conveying belt to transport, the driving motor drives the material shifting plate to rotate, so that the traditional Chinese medicine decoction pieces in the hopper are uniformly discharged onto the conveying belt.
As a further improvement of the above scheme, the uniformly distributed exhaust pipes comprise a main air pipe and branch air pipes, the main air pipe is connected with the hot air exhaust pipe, the branch air pipes are uniformly connected to the front side surface and the rear side surface of the main air pipe, and the air outlets are arranged on the lower surfaces of the branch air pipes; with the equipartition blast pipe through above-mentioned setting, can carry out comprehensive hot air drying to the herbal pieces-of getting into stoving incasement portion.
As a further improvement of the scheme, the bottom end of the inner wall of the fan-shaped turning hopper is provided with a shoveling inclined plane; the shoveling inclined plane is close to the surface of the conveying belt, and when the stepping motor drives the conveying belt to convey for a certain distance, the medicine decoction pieces can smoothly enter the fan-shaped turning hopper through the shoveling inclined plane.
As a further improvement of the above scheme, the upper end of the arc-shaped material turning plate is connected with a wedge-shaped strip protruding outwards; the wedge-shaped strips are arranged in a protruding mode, so that the outer-layer Chinese herbal pieces in the fan-shaped turning hopper fall off firstly and then the inner-layer Chinese herbal pieces fall off in the turning process of the fan-shaped turning hopper, and therefore the turning of the Chinese herbal pieces at the front end of the conveying belt is achieved.
As a further improvement of the scheme, the sector angle of the section of the sector material turning hopper is 120-180 degrees; the fan-shaped turning hopper with the fan-shaped angle of 120-180 degrees can ensure that the traditional Chinese medicine decoction pieces falling from the arc-shaped turning plate are firstly stacked on the fan-shaped turning hopper at the bottom end, and the traditional Chinese medicine decoction pieces slide on the conveying belt after being turned upside down.
As a further improvement of the above scheme, a transition guide groove is formed on the side surface of the stop block abutting against the stop lever; the transition guide groove can ensure that the stop lever and the stop block are smoother when the stop lever and the stop block are abutted and limited.
The working principle of the device is as follows:
the control program is set through the PLC firstly, the stepping motor and the hydraulic cylinder are automatically controlled, the Chinese herbal pieces are laid on the upper surface of the left end of the conveyor belt, the Chinese herbal pieces laid on the conveyor belt are conveyed into the drying box for a certain distance along with the stepping motor every time, the Chinese herbal pieces are dried by hot air exhausted from the left-end uniformly-distributed exhaust pipe in the drying box firstly, the Chinese herbal pieces on the upper surface are effectively dried in the drying process, and the drying effect of the Chinese herbal pieces on the lower surface is insufficient.
Then the stepping motor drives the conveyor belt to move for a certain distance, the traditional Chinese medicine decoction pieces close to the left side of the fan-shaped stirring hopper are pushed into the fan-shaped stirring hopper, the hydraulic cylinder is started at the moment, the piston rod of the hydraulic cylinder extends to push the sealing piston to the inside of the piston cylinder, the compressed air in the piston cylinder enters the rotating cavity of the cylinder, the rotating rod rotates clockwise and drives the fan-shaped stirring hopper to rotate clockwise due to the driving force of the compressed air on the fan blades, the traditional Chinese medicine decoction pieces in the fan-shaped stirring hopper are stacked on the upper surface of the arc-shaped stirring plate at the moment, the traditional Chinese medicine decoction pieces with better drying effect are stacked on the upper layer, the traditional Chinese medicine decoction pieces with insufficient drying effect are arranged on the lower layer, the traditional Chinese medicine decoction pieces stacked on the upper layer firstly fall and are stacked on the bottom wall of the fan-shaped stirring hopper at the moment along with the continuous clockwise rotation of the fan-shaped stirring hopper, and then the traditional Chinese medicine decoction pieces on the lower layer fall and are stacked on the upper layer; the fan-shaped stirring hopper continues to clockwise rotate to the uppermost end, and before the stop lever is abutted against the stop block, the traditional Chinese medicine decoction pieces which are stirred and stacked in the fan-shaped stirring hopper slide down on the conveying belt at the rear side, and simultaneously the stepping motor is started to uniformly spread the stirred traditional Chinese medicine decoction pieces on the conveying belt; when the piston rod of the hydraulic cylinder extends to the longest, the piston rod of the hydraulic cylinder is reversely shortened again, the inside of the piston cylinder is changed into a negative pressure state at the moment, the pressure difference exists in the cylinder, the fan-shaped turning hopper rotates anticlockwise under the action of the gravity of the fan-shaped turning hopper, the air pressure in the piston cylinder is restored to the initial state, and meanwhile the fan-shaped turning hopper is restored to the initial state under the limiting action between the stop block at the lower end and the stop lever.
At last along with the transportation of conveyer belt for herbal pieces-after the upset gets into the inside right-hand member of stoving case, and is dried by the exhaust hot-blast in the right-hand member equipartition blast pipe, and the herbal pieces-that the effect is not enough is dried once more on the conveyer belt upper surface this moment, has effectively guaranteed the upper and lower layer herbal pieces-stoving effect of conveyer belt.
In addition, when the piston rod of the hydraulic cylinder extends, compressed air can be discharged from a second compressed air pipe connected with the cylinder, and the compressed air exhaust holes in the lower surface of the second compressed air pipe are arranged right opposite to the lower-layer conveying belt, so that air holes blocked in the lower-layer conveying belt can be dredged, and the subsequent air circulation of hot air drying is effectively ensured.
Has the advantages that:
1. the invention controls the step-by-step conveying of the conveying belt through the stepping motor, firstly, the left end in the drying box is dried, then in the process of the step-by-step conveying of the conveying belt, the Chinese herbal pieces after the first drying enter the fan-shaped turning hopper, in the process of clockwise rotation of the fan-shaped turning hopper, the Chinese herbal pieces on the upper layer firstly fall onto the bottom wall of the fan-shaped turning hopper at the moment, the Chinese herbal pieces on the lower layer fall onto and cover the upper surface of the fan-shaped turning hopper, the Chinese herbal pieces on the conveying belt can be overturned and overturned from the upper layer to the lower layer under the action of the Chinese herbal pieces overturning mechanism, the overturned Chinese herbal pieces are spread on the conveying belt, the Chinese herbal pieces enter the right end of the drying box along with the conveying of the conveying belt to be dried for the second time, and the Chinese herbal pieces on the whole conveying belt are sufficiently dried through the second drying, so that the drying effect is excellent.
2. This device treats the herbal pieces-for-chinese-medicinal piece of drying through the conveyer belt and carries out streamlined conveying, is equipped with an even unloader in the material loading end simultaneously, and whole stoving process realizes the full automatization, and it is high not only drying efficiency, need not the whole operation of operation personnel moreover, has greatly reduced operation personnel's intensity of labour, has realized the effect that subtracts the personnel and increase efficiency, and the practicality is strong.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a front plan view of the inside of the drying box in the initial state of the fan-shaped turning hopper according to the present invention;
FIG. 3 is a front plan view of the inside of the drying box when the fan-shaped turning hopper of the present invention is rotated to the topmost end;
FIG. 4 is a top view of the interior of the drying box of the present invention;
FIG. 5 is a perspective view of the exhaust pipe of the present invention;
FIG. 6 is a perspective view of the fan-shaped hopper of the present invention;
FIG. 7 is an enlarged view of the structure at A in FIG. 4;
fig. 8 is a plan view showing the inside of the piston cylinder and the cylinder in the present invention.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all 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 application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the invention and its embodiments and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the present invention can be understood by those skilled in the art as appropriate.
Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail with reference to the accompanying drawings 1 to 8 in conjunction with an embodiment.
Example 1
Embodiment 1 introduces a traditional Chinese medicine decoction piece efficient drying device, referring to fig. 1, the main body of the device comprises a drying box 1, a stepping feeding mechanism, two hot air blowers 2 and a PLC 3, wherein the PLC 3 is the CPM1A-20CDT-D-V1 model of ohm dragon and is arranged on the outer side surface of the drying box 1, and six support legs 4 are uniformly arranged on the lower surface of the drying box 1. The left side surface and the right side surface of the drying box 1 are provided with rectangular openings 101, the stepping feeding mechanism comprises a conveying rack 5, a conveying belt 6 and a stepping motor 7, and the stepping motor 7 in the embodiment is 65BYG350 AH-0201. The conveyor frame 5 is arranged through the left and right rectangular openings 101, and the conveyor belt 6 is arranged on the conveyor frame 5. The output shaft of the stepping motor 7 is provided with a speed reducer 8, the output shaft of the speed reducer 8 is connected with a driving roller (not shown in the figure) on the conveying rack 5, the stepping rotation of the stepping motor 7 is realized by pulse signals conveyed to the stepping motor 7 through a PLC (programmable logic controller), a large number of air holes 601 are uniformly formed in the surface of the conveying belt 6, the two air heaters 2 are fixedly arranged at the left end and the right end of the upper surface of the drying box 1, the air heaters 2 are connected with hot air exhaust pipes 9, and the lower ends of the hot air exhaust pipes 9 penetrate through the top wall of the drying box 1.
Referring to fig. 2 and 5 of the drawings, an equispaced exhaust pipe 10 is connected to an end of a hot air exhaust pipe 9 inside a drying box 1, specifically, the equispaced exhaust pipe 10 includes a main air pipe 11 and a branch air pipe 12, the main air pipe 11 is connected to a lower end of the hot air exhaust pipe 10, a plurality of branch air pipes 12 are uniformly connected to front and rear side surfaces of the main air pipe 11, a plurality of air outlets 13 are opened on a lower surface of the branch air pipe 12, and the arrangement is to pay attention to that the air outlets 13 are arranged right facing to an upper surface of a conveyor belt 6. A plurality of air outlet holes 102 are arranged on the bottom wall of the drying box 1 which is positioned under the uniformly distributed exhaust pipe 10.
Referring to the attached drawings 2, 3 and 4, a turnover mechanism for herbal pieces is arranged in the drying box 1 between the left and right hot air blowers 2. Referring to fig. 6, the herbal pieces turning mechanism comprises a fan-shaped turning hopper 14, the fan-shaped angle of the cross section of the fan-shaped turning hopper is 150 degrees, the bottom end of the fan-shaped turning hopper 14 is attached to the upper surface of the conveyor belt 6, the front end and the rear end of the fan-shaped turning hopper 14 are connected with a rotating shaft 16, and the front end and the rear end of the fan-shaped turning hopper 14 below the rotating shaft 16 are connected with a stop lever 15. An arc-shaped material turning plate 17 is arranged on the inner wall of the lower end of the fan-shaped material turning hopper 14. In addition, in order to ensure that the herbal pieces-in-medicine on the conveyor belt 6 can smoothly enter the fan-shaped turning hopper 14 along with the conveyor belt step-by-step conveying, a material shoveling inclined plane 141 is arranged at the bottom end of the inner wall of the fan-shaped turning hopper. Meanwhile, the upper end of the arc-shaped material turning plate 17 is connected with an outward-protruding wedge-shaped strip 171, and the outward-protruding wedge-shaped strip 171 can block the traditional Chinese medicine decoction pieces on the lower layer of the arc-shaped material turning plate 17, so that the traditional Chinese medicine decoction pieces on the outer layer in the fan-shaped material turning hopper 14 fall firstly and then the traditional Chinese medicine decoction pieces on the lower layer fall in the overturning process of the fan-shaped material turning hopper 14.
Referring to fig. 2, fig. 3, fig. 4 and fig. 7, two fixing blocks 18 are disposed on the front and rear inner walls of the drying box 1, the two fixing blocks 18 are symmetrically disposed around the rotating shaft 16 on the fan-shaped hopper 14 by rotating 180 degrees, a spring 19 is connected to the fixing block 18, a stopper 20 is connected to the end of the spring 19, and the stopper 20 and the stop lever 15 are located on the same circular line with the center of the rotating shaft 16. When the fan-shaped tipping bucket 14 rotates, the two stoppers 20 can respectively limit two motion states of the fan-shaped tipping bucket 14. In addition, in order to ensure that the stop lever 15 and the stopper 20 are more smoothly abutted during limiting, a transition guide groove 201 is further formed on the side surface where the stopper 20 and the stop lever 15 are abutted.
Referring to fig. 4 and 8, a rotating shaft 16 on the rear end surface of the fan-shaped turning hopper 14 is rotatably connected with the rear side wall of the drying box 1, a cylinder 21 is connected to the front side surface of the drying box 1 at the position of the rotating shaft 15 at the front end of the fan-shaped turning hopper 14, a rotating cavity 211 is formed in the cylinder 21, bearings 212 are arranged on the front inner wall and the rear inner wall of the rotating cavity 211, the bearings 212 are sealed bearings, a rotating rod 22 is arranged between the two bearings 212, a plurality of fan blades 23 are uniformly arranged on the circumferential surface of the rotating rod 22 in the rotating cavity 211, and the outer ends of the fan blades 23 are attached to the inner wall of the rotating cavity 211. The rear end of the rotating rod 22 passes through the cylinder 21 and is connected with the outer wall of the drying box 1 and the rotating shaft 16, thereby realizing the linkage of the rotating rod 22 and the rotating shaft 16.
Referring to fig. 1 and 8, a piston cylinder 24 is fixed at the left end of the front side of the drying box 1, a hydraulic cylinder 25 is provided at the front side of the drying box 1 at the left end of the piston cylinder 24, a sealing piston 241 is provided in the piston cylinder 24, a piston rod of the hydraulic cylinder 25 is connected to the sealing piston 241, and a first compressed air pipe 26 is connected to the right end of the piston cylinder 24, the right end of the first compressed air pipe 26 is connected to the upper end of the left outer circumferential surface of the cylinder 21, a second compressed air pipe 27 is connected to the upper end of the right outer circumferential surface of the cylinder 21, the end of the second compressed air pipe 27 extends into the drying box 1, referring to fig. 2, the end of the second compressed air pipe 27 extending into the drying box 1 passes through the conveyor frame 5 and is arranged between the upper layer and the lower layer of the conveyor belt 6, and the end of the second compressed air pipe 27 is arranged in a sealing way, a compression exhaust hole (not labeled) facing the lower conveyor belt 6 is formed in the lower surface of the second compression air pipe 27.
In addition, the PLC controller 3 in this embodiment mainly controls the number of turns of the stepping motor 7 per rotation, and in cooperation with the reduction ratio of the speed reducer, can quickly calculate the distance of the conveyor belt per feeding. The PLC controller 3 also acts on the hydraulic cylinder 25 to control extension and contraction of the piston rod of the hydraulic cylinder 25.
Example 2
Embodiment 2 is a further improvement on the basis of embodiment 1, and the improvement point is that a device capable of uniformly discharging is arranged, so that the defect that operators need to lay the Chinese medicinal decoction pieces to be dried in a conveying belt during drying is avoided.
In this embodiment 2, the same parts as those in embodiment 1 are not described again, and referring to fig. 2 or fig. 3, a uniform blanking device 28 is disposed above the left end of the step feeding mechanism, and the uniform blanking device 28 includes a hopper 281, a rotary drum 282, and a driving motor (not shown in the figure), which can be a servo motor or a step motor, and is connected to the PLC controller 3. A material homogenizing chamber 283 is arranged in the rotary drum 282, the lower end of the hopper 281 is communicated with the upper end of the material homogenizing chamber 283, a blanking port 284 is arranged under the rotary drum 282, the blanking port 284 faces the upper surface of the left end of the conveyor belt 6, the driving motor is fixed on the front end surface or the rear end surface of the rotary drum 282, the end part of the driving motor, which extends into the material homogenizing chamber 283, is connected with a round rod 285, and a plurality of material stirring plates 286 are uniformly arranged on the outer circumferential surface of the round rod 285. In the actual drying process, the driving motor and the stepping motor 7 rotate synchronously, when the stepping motor 7 drives the conveyor belt 6 to transport, the driving motor drives the material shifting plate 286 to rotate, so that the traditional Chinese medicine decoction pieces in the hopper 281 are uniformly discharged and spread on the upper surface of the conveyor belt 6, and then enter the drying box 1 along with the conveyor belt 6 to be dried.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A high-efficient drying equipment of herbal pieces-for-chinese medicine, including stoving case, step-by-step feeding mechanism, air heater and PLC controller, its characterized in that, the lower surface of stoving case is provided with the stabilizer blade, the PLC controller sets up the lateral surface at the stoving case, the rectangle mouth has been seted up to the left and right sides face of stoving case, step-by-step feeding mechanism includes conveying frame, conveyer belt and step motor, the conveying frame runs through two rectangle mouths of left and right sides and sets up, the conveyer belt sets up in the conveying frame, be provided with the speed reducer on the output shaft of step motor, the output shaft of speed reducer is connected with the drive roll on the conveying frame, the surface of conveyer belt evenly has seted up a plurality of bleeder vents, two air heaters are fixed to be set up in the left and right sides both ends of stoving case upper surface, be connected with the hot-air calandria pipe on the air heater, the lower extreme of hot-air calandria pipe passes the roof of stoving case, the end part of a hot air exhaust pipe positioned in the drying box is connected with a uniformly distributed exhaust pipe, the lower surface of the uniformly distributed exhaust pipe is provided with an air outlet facing a conveyor belt, the bottom wall of the drying box positioned right below the uniformly distributed exhaust pipe is provided with a plurality of air outlet holes, and a traditional Chinese medicine decoction piece overturning mechanism is arranged in the drying box positioned between the left hot air blower and the right hot air blower;
wherein, the turnover mechanism of the traditional Chinese medicine decoction pieces comprises a fan-shaped turning hopper, the front end and the rear end of the fan-shaped turning hopper are connected with a rotating shaft, the front end and the rear end of the fan-shaped turning hopper below the rotating shaft are both connected with a blocking rod, the inner wall of the lower end of the fan-shaped turning hopper is provided with an arc-shaped turning plate, the front inner wall and the rear inner wall of the drying box are both provided with two fixed blocks, the two fixed blocks are symmetrically arranged by rotating 180 degrees around the rotating shaft, the fixed blocks are connected with springs, the end parts of the springs are connected with stop blocks which are positioned on the same circular line with the blocking rods, the rotating shaft is rotatably connected with the rear side wall of the drying box at the rear end, the front side surface of the drying box at the rotating shaft at the front end is connected with a cylinder, a rotating cavity is arranged inside the cylinder, the front inner wall and the rear inner wall of the rotating cavity are both provided with bearings, a rotating rod is arranged between the two bearings, and a plurality of fan blades are uniformly arranged on the circumference surface of the rotating rod in the rotating cavity, the outer ends of the fan blades are attached to the inner wall of the rotating cavity, the rear end of the rotating rod penetrates through the cylinder to be connected with the rotating shaft through the outer wall of the drying box, a piston cylinder is fixed at the left end of the front side surface of the drying box, a hydraulic cylinder is arranged at the front side surface of the drying box at the left end of the piston cylinder, a sealing piston is arranged in the piston cylinder, a piston rod of the hydraulic cylinder is connected with the sealing piston, the right end of the piston cylinder is connected with a first compressed air pipe, the right end of the first compressed air pipe is connected with the upper end of the outer circumferential surface on the left side of the cylinder, the upper end of the outer circumference surface at the right side of the cylinder is connected with a second compressed air pipe, the end part of the second compressed air pipe extends into the drying box, the end part of a second compressed air pipe extending into the drying box passes through the conveying rack and is arranged between the conveying belts, and the end part of the second compressed air pipe is arranged in a sealing way, and the lower surface of the second compressed air pipe is provided with a compressed air exhaust hole which is just opposite to the conveying belt.
2. The efficient drying equipment for the Chinese herbal pieces according to claim 1, wherein an even blanking device is arranged above the left end of the stepping feeding mechanism, the even blanking device comprises a hopper, a rotary drum and a driving motor, a material homogenizing chamber is arranged inside the rotary drum, the lower end of the hopper is communicated with the upper end of the material homogenizing chamber, a blanking port is arranged right below the rotary drum, the driving motor is fixed on the end surface of the rotary drum, a round rod is connected to the end of an output shaft of the driving motor extending into the material homogenizing chamber, and a plurality of material stirring plates are uniformly arranged on the outer circumferential surface of the round rod.
3. The apparatus for drying herbal pieces-of-chinese-medicinal material according to claim 1, wherein said uniform exhaust pipe comprises a main pipe and a branch pipe, said main pipe is connected to a hot air exhaust pipe, a plurality of said branch pipes are uniformly connected to the front and rear sides of the main pipe, and an air outlet is provided on the lower surface of said branch pipe.
4. The efficient drying equipment for the Chinese herbal pieces, according to claim 1, is characterized in that a material shoveling inclined plane is arranged at the bottom end of the inner wall of the fan-shaped turning hopper.
5. The efficient drying equipment for traditional Chinese medicine decoction pieces according to claim 1, wherein the upper end of the arc-shaped material turning plate is connected with a wedge-shaped strip protruding outwards.
6. The efficient drying equipment for traditional Chinese medicine decoction pieces according to claim 1, wherein the sector angle of the section of the sector material turnover hopper is 120-180 degrees.
7. The efficient drying equipment for the Chinese herbal pieces according to claim 1, wherein a transition guide groove is formed in the side surface of the stop block, which is abutted to the stop lever.
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| CN202010315184.6A CN111649573B (en) | 2020-04-21 | 2020-04-21 | High-efficient drying equipment of herbal pieces- |
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| CN112577290A (en) * | 2020-11-18 | 2021-03-30 | 郭云岭 | Medical traditional Chinese medicine drying device based on air drying technology |
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| CN113758220A (en) * | 2021-09-26 | 2021-12-07 | 安徽鑫泰药业有限公司 | Chinese-medicinal material drying equipment |
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| CN114857913A (en) * | 2022-03-25 | 2022-08-05 | 福州市长乐区东风轴承有限公司 | Bearing self-cleaning, drying machine |
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