CN112320108B - Material loading device capable of keeping material quantity constant - Google Patents
Material loading device capable of keeping material quantity constant Download PDFInfo
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- CN112320108B CN112320108B CN202011225128.XA CN202011225128A CN112320108B CN 112320108 B CN112320108 B CN 112320108B CN 202011225128 A CN202011225128 A CN 202011225128A CN 112320108 B CN112320108 B CN 112320108B
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- humidity
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- material tray
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D88/00—Large containers
- B65D88/54—Large containers characterised by means facilitating filling or emptying
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/48—Arrangements of indicating or measuring devices
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- Mechanical Engineering (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a material loading device capable of keeping constant material quantity, comprising: the material tray and the lifting assembly are connected through the assembly frame body, the upper surface of the material tray is provided with a plurality of humidity sensors, the lower surface of the material tray is provided with a fixing frame, the fixing frame is connected with a material carrying blade, the material carrying blade can stretch out the peripheral edge of the material tray, the material carrying blade is arranged below the material tray, the assembly frame body is connected below the material tray, the circumferential side face of the assembly frame body is provided with a telescopic rod, the lower end of the assembly frame body is provided with a hinge assembly, the hinge assembly is connected with the lifting assembly, the lifting assembly is composed of two lifting cylinders, the actual humidity of materials is detected through the humidity sensors, the humidity sensors can transmit the detected humidity information to the control device, the control device transmits a length adjusting command to the telescopic rod and the lifting assembly, the projection area of the material tray in the vertical direction is changed by adjusting the lengths of the two lifting cylinders or the telescopic rod, and the material quantity of the material carried by the material tray is ensured to be kept at a preset quantity.
Description
Technical Field
The invention relates to the field of packaging and filling or the field of quantitative distribution, in particular to a material loading device capable of keeping the material quantity constant.
Background
The material loading device is mainly used for a feeding device, and in the production and processing processes, a plurality of fields require the feeding device to realize quantitative feeding, and the quantitative feeding device is mainly used for automatic continuous weighing, quantitative feeding and batching metering control devices of massive, granular and powdery materials. In a powder material quantitative feeding device, the material quantity is controlled very accurately. In the production of tablets in the field of medicine, the quantitative control of powder materials is obvious, and because the quantitative control is closely related to the health of people, the control on adding various dosage required in the tablets is stricter, if the dosage proportion is changed a little, serious consequences can be generated, in addition, the more the fields are pulled, the more the quantitative materials are required, and therefore, the material loading device for keeping the material quantity constant is very important for the quantitative feeding device.
At present, the quantitative material loading device usually used is a hopper with a certain loading capacity, or a material weighed by a weighing machine in advance is poured into the hopper. Traditional material loading attachment can not carry out automatic ration, needs the manual work to weigh, has increased the intensity of labour, has reduced the efficiency of work, and can not effective control the material volume that loads in the operation process. Although some automatic quantitative material loading devices also exist in the market, the structures of the automatic quantitative material loading devices are complex, and the material quantity control is not accurate. On the other hand, the quantitative feeding device cannot accurately keep the material amount per time constant along with the difference of materials or the difference of material humidity, and the adjustment to the required material amount is troublesome. Therefore, there is a need for further solutions to the above problems.
Disclosure of Invention
The invention overcomes the defects of the prior art and provides the material loading device capable of keeping the material quantity constant.
In order to achieve the purpose, the invention adopts the technical scheme that: a material loading device capable of keeping constant material quantity comprises: the material tray and the lifting assembly are connected through the assembly frame body, a plurality of humidity sensors are arranged on the upper surface of the material tray, a fixing frame is arranged on the lower surface of the material tray, a material carrying blade is connected to the fixing frame and can follow the material tray to move in the radial direction, the material carrying blade can stretch out of the peripheral edge of the material tray, the material carrying blade is arranged below the material tray, and the assembly frame body is connected below the material tray.
The assembly support body circumference side sets up the telescopic link, telescopic link one end is connected carry the material blade, the telescopic link other end is connected the assembly support body, assembly support body lower extreme sets up articulated subassembly, articulated subassembly is connected the lifting unit, the lifting unit comprises two lift cylinders.
In a preferred embodiment of the invention, the humidity sensor transmits a signal to a control device, the control device transmits a command to the telescopic rod and the lifting assembly, and the telescopic rod and the lifting assembly can adjust the length according to the command transmitted by the control device.
In a preferred embodiment of the present invention, the humidity sensors are equally distributed on the surface of the material tray, the humidity sensors can directly contact with the material, and the upper surfaces of the humidity sensors are flush with the surface of the material tray.
In a preferred embodiment of the present invention, a plurality of the material loading blades are distributed along the circumferential side surface of the mounting frame body at equal angles, and the upper surfaces of the material loading blades are tightly attached to the lower surface of the material tray.
In a preferred embodiment of the invention, the lengths of the two lifting columns can be independently adjusted.
In a preferred embodiment of the present invention, two side surfaces of each of the material loading blades are provided with a fixing frame.
In a preferred embodiment of the present invention, two fixing frames are provided with a boss, two side surfaces of the material loading blade are provided with a guide groove, and the boss and the guide groove can be matched with each other.
In a preferred embodiment of the present invention, the two guide grooves are parallel to each other, the two bosses are concentric and fixed at intervals, and the guide groove slides between the two bosses along the telescopic direction of the telescopic rod.
The second technical scheme adopted by the invention is as follows: a method for adapting the absolute dry quantity of a material is characterized in that the actual humidity of the material is detected by a humidity sensor, and the actual humidity is compared with a comparison humidity;
when the actual humidity is larger than the comparison humidity, adjusting the two lifting cylinders to enable the material tray to generate a corresponding included angle with the horizontal plane, so that the projection area of the material tray in the vertical direction is reduced, and the material loading amount of the material tray is kept at a preset amount;
when the actual humidity is smaller than the comparison humidity, the telescopic rod is adjusted to enable the material loading blades to extend out of the peripheral edge of the material tray by a preset length, so that the projection area of the material tray in the vertical direction is increased, and the material loading amount of the material tray is kept at a preset amount.
In a preferred embodiment of the present invention, the material tray is in a horizontal state, when the material loading blades do not extend out of the peripheral edge of the material tray, and the corresponding included angle between the upper surface of the material tray and the horizontal plane is zero, when the weight of the material loaded on the material tray is exactly the standard weight, the actual humidity of the loaded material is the comparison humidity.
The invention solves the defects in the background art, and has the following beneficial effects:
(1) Controlling means can convey the order to telescopic link and lifting unit, detects the actual humidity of material through humidity transducer, and humidity transducer can transmit the humidity information that detects to controlling means, and controlling means can calculate the angle of piling up of material fast with actual humidity and comparison humidity contrast. The weight of the materials on the material tray is calculated according to the natural stacking angle of the materials, the natural stacking angles of the materials with different humidity are different, so that the weight of the materials on the material tray is influenced, the natural stacking angle is calculated according to the humidity, the projection area of the control device in the vertical direction of the material tray is actively adjusted, the weight is not measured by using a pressure sensor, and the weight of the materials on the material tray is adjusted sensitively and accurately.
(2) The control device transmits a length adjusting command to the telescopic rod and the lifting assembly, and the area of the material tray is changed by adjusting the length of the telescopic rod, so that the projection area of the material tray in the vertical direction is changed; on the other hand, the lengths of the two lifting cylinders can be independently adjusted, and the inclination angle of the material tray is changed by adjusting the height difference of the two lifting cylinders, so that the included angle between the material tray and the horizontal plane is changed, the projection area of the material tray in the vertical direction is changed, the material loading amount of the material tray is ensured to be kept at a preset amount, the material loading amount is automatically changed, and the working efficiency is effectively improved.
(3) A plurality of humidity transducer equiangular distribution is on the material dish surface, and humidity transducer can detect material humidity with material direct contact in a plurality of positions, gets the average value of a plurality of position humidity testing results, effectively reduces testing result's deviation, makes the result that humidity detected more accurate, and humidity transducer upper surface and material dish surface parallel and level to ensure that humidity transducer does not influence the material that loads on the material dish surface.
(4) Every carries material blade both sides face and all sets up a mount, all set up the boss on two mounts, carry material blade both sides face and set up the guide way, boss and guide way can mutually support, two guide ways are parallel to each other, two concentric and interval of boss are fixed, the guide way can be followed the flexible direction of telescopic link and slided between two bosss, when carrying material blade and radially sliding along the material dish, can make and carry material blade steady operation, on the other hand, after carrying material blade extension charging tray edge certain length, because carry the material blade arm of force to lengthen, telescopic link and year material blade are easy to be because of receiving the too big rupture of power of vertical direction, the mount can share the power that year material blade received in vertical direction, play the effect of protecting year material blade.
(5) The material carrying blades are distributed at equal angles along the circumferential side surface of the assembly frame body, the upper surfaces of the material carrying blades are tightly attached to the lower surface of the material tray, so that no gap is reserved between the material tray and the material carrying blades, and the powder material is prevented from entering a gap between the material tray and the material carrying blades in the telescopic sliding process of the material carrying blades due to the fact that the size of the powder material is small, friction force cannot be increased between the material carrying blades and the material tray, and the telescopic function of the material carrying blades is protected.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a perspective block diagram of a preferred embodiment of the present invention;
FIG. 2 is a perspective structural view of a preferred embodiment of the present invention;
FIG. 3 is a perspective view of a blade according to a preferred embodiment of the present invention;
FIG. 4 is a perspective view of a preferred embodiment lift assembly of the present invention;
FIG. 5 is a schematic illustration of the stacking angles of the preferred embodiment of the present invention;
specifically, 100-assembly frame body, 110-fixing frame, 111-boss, 120-telescopic rod and 130-hinge assembly; 200-humidity sensor, 210-material tray; 300-material loading blades, 301-guide grooves; 400-lifting component, 410-lifting column; 500-material, 510-bulk angle.
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.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as specifically described herein and, therefore, the scope of the present invention is not limited by the specific embodiments disclosed below.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings, which are based on the orientations and positional relationships indicated in the drawings, and are used for convenience in describing the present invention and to simplify the description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the scope of the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
As shown in fig. 1 and 2, a material loading device capable of maintaining a constant amount of material 500 includes: through material tray 210 and the lifting unit 400 that assembly support body 100 connects, material tray 210 upper surface sets up a plurality of humidity transducer 200, humidity transducer 200 can transmit signal to controlling means, material tray 210 lower surface sets up mount 110, mount 110 connects and carries material blade 300, carry material blade 300 and can follow material tray 210 radial movement, and carry material blade 300 and can stretch out the peripheral edge of material tray 210, carry material blade 300 and set up in material tray 210 below, assembly support body 100 is connected to material tray 210 below.
It should be noted that the control device in the loading device is also a host system of the whole device, the control device plays a role of command conversion, that is, the translation of different language commands is realized, the control device receives the signal of the humidity sensor 200, when the humidity detection result of the humidity sensor 200 is received, an adjustment command is sent to the lifting column 410 or the telescopic rod 120 according to the conversion relationship among the humidity, the stacking angle and the weight of the material 500 input in the system, and the length of the lifting column 410 or the telescopic rod 120 is correspondingly adjusted according to the command sent by the control device.
In a preferred embodiment of the present invention, the circumferential side of the assembly frame 100 is provided with a telescopic rod 120, one end of the telescopic rod 120 is connected to the loading blade 300, the other end of the telescopic rod 120 is connected to the assembly frame 100, the lower end of the assembly frame 100 is provided with a hinge assembly 130, the hinge assembly 130 is connected to a lifting assembly 400, and the lifting assembly 400 is composed of two lifting columns 410.
In a preferred embodiment of the present invention, the hinge assembly 130 may comprise a hinge frame and a rotary joint connected to the hinge frame, the hinge frame is disposed on the assembly frame body 100, the rotary joint is disposed on the lifting assembly 400, a shaft body is disposed between the hinge frames, a through hole is disposed on the rotary joint, and the shaft body and the through hole can be cooperatively connected. The hinge assembly 130 may be a ball hinge, and the ball hinge is disposed between the mounting body 100 and the lifting cylinder 410. The inclination angle of the material tray 210 can be flexibly controlled by adding the hinge assembly 130, and the hinge assembly 130 has the advantages of flexible and accurate control and large torsion angle, and is convenient to adjust, safe and reliable.
In a preferred embodiment of the present invention, the control device can transmit a command to the telescopic rod 120 and the lifting assembly 400, the humidity sensor 200 can detect the actual humidity of the material 500, the humidity sensor 200 can transmit the detected humidity information to the control device, the control device can compare the actual humidity with the compared humidity, and can rapidly calculate the stacking angle of the material 500, the weight of the material 500 on the material tray 210 is calculated according to the natural stacking angle of the material 500, the slope of the material pile or the included angle between the material pile and the ground when the material 500 is naturally stacked is called a stacking angle 510, which is also called an angle of repose, and the stacking angle 510 in a static state is called a natural stacking angle 510.
In a preferred embodiment of the present invention, since the powder material 500 has a flowing property and the flowability is affected by moisture, the powder material 500 generally has a poor flowability when the moisture is increased, which is indicated by the tendency of the powder to cohere and have a large adhesiveness, and the powder material 500 has a poor flowability when the moisture is larger, which results in a non-uniform flowability of the whole powder material 500. Since the flowability of the powder is affected, the stacking angle of the powder material 500 during stacking is affected, resulting in a change in the amount of the material 500. The natural stacking angles of the materials 500 with different humidity are different, so that the weight of the materials 500 on the material tray 210 is influenced, the natural stacking angle is calculated by the device according to the humidity of the materials 500, the projection area of the material tray 210 in the vertical direction is actively adjusted by the control device, the traditional pressure sensor is not used for measuring the weight of the materials 500, and the weight of the materials 500 on the material tray 210 is adjusted sensitively and accurately.
In a preferred embodiment of the present invention, the upper surface of the material tray 210 of the loading device may be circular, and the shape is substantially as shown in the figure, and the upper surface of the material tray 210 may also be regular polygon, and the shape of the material tray 210 is not limited. The material loading blade 300 below the material tray 210 and the lifting rod connected to the material loading blade 300 are installed without contacting each other, and the area of the material tray 210 can be changed to a large extent under the condition that the telescopic rod 120 extends out of the edge of the material tray 210 by the same length.
It should be noted that the material tray 210 is in a horizontal state, the material carrying blades 300 do not extend out of the peripheral edge of the material tray 210, and the corresponding included angle between the upper surface of the material tray 210 and the horizontal plane is zero, when the weight of the material carried by the material tray 210 is just the standard weight, the actual humidity of the material carried by the material tray 500 is the comparison humidity.
In a preferred embodiment of the present invention, the control device transmits a length adjustment command to the telescopic rod 120 and the lifting assembly 400, and the area of the material tray 210 is changed by adjusting the length of the telescopic rod 120, so as to change the vertical projection area of the material tray 210; on the other hand, the lengths of the two lifting cylinders 410 can be independently adjusted, and the inclination angle of the material tray 210 is changed by adjusting the height difference of the two lifting cylinders 410, namely, the included angle between the material tray 210 and the horizontal plane is changed, so that the projection area of the material tray 210 in the vertical direction is changed, the 500-volume loading of the materials on the material tray 210 is ensured to be kept at a preset amount, the material loading amount is automatically changed, and the working efficiency is effectively improved.
In a preferred embodiment of the present invention, the plurality of humidity sensors 200 are equally distributed on the surface of the material tray 210, the humidity sensors 200 can directly contact the material 500, detect the humidity of the material 500 at a plurality of positions, and obtain an average value of the humidity detection results at the plurality of positions, thereby effectively reducing the deviation of the detection results, making the humidity detection results more accurate, and the upper surface of the humidity sensor 200 is flush with the surface of the material tray 210, thereby ensuring that the humidity sensors 200 do not affect the loading of the material 500 on the surface of the material tray 210.
In a preferred embodiment of the present invention, the plurality of loading blades 300 are distributed along the circumferential side of the assembly frame 100 at equal angles, the upper surfaces of the loading blades 300 are tightly attached to the lower surface of the material tray 210, so that no gap is left between the material tray 210 and the loading blades 300, and since the volume of the powder material 500 is small, the powder material 500 is prevented from entering the gap between the material tray 210 and the loading blades 300 during the telescopic sliding process of the loading blades 300, and the friction force between the loading blades 300 and the material tray 210 is not increased, thereby protecting the telescopic function of the loading blades 300.
In a preferred embodiment of the present invention, two side surfaces of each material loading blade 300 are respectively provided with one fixing frame 110, two fixing frames 110 are respectively provided with a boss 111, the side surfaces of the material loading blades 300 are provided with a guide groove 301, the bosses 111 and the guide grooves 301 can be matched with each other, the two guide grooves 301 are parallel to each other, the two bosses 111 are concentric and fixed at intervals, the guide grooves 301 can slide between the two bosses 111 along the extension and retraction direction of the telescopic rod 120, when the material loading blades 300 slide along the radial direction of the material tray 210, the material loading blades 300 can stably operate, on the other hand, after the material loading blades 300 extend out of the edge of the material tray 210 for a certain length, since the force arm of the material loading blades 300 is lengthened, the telescopic rod 120 and the material loading blades 300 are easily broken due to excessive vertical force, the fixing frames 110 can share the force received by the material loading blades 300 in the vertical direction, and play a role of protecting the material loading blades 300.
In a preferred embodiment of the present invention, the loading blade 300 in the loading device is not necessarily located right under the material tray 210, but the loading blade 300 may be partially or completely embedded in the material tray 210 in the vertical direction, the loading blade 300 can slide along the radial direction of the material tray 210 after being embedded in the material tray 210, the guide slot 301 on the loading blade 300 is retained, and the material tray 210 is provided with a protrusion to limit the loading blade 300, so that when the loading blade 300 is sufficiently pressed by the material 500, the loading blade 300 can be guaranteed to be vertically pressed by the material tray 210, and the loading blade 300 is protected from being damaged by the excessive pressure in the vertical direction of the material 500.
When the material tray is used, the blanking device is arranged above the material tray 210, the materials 500 are scattered by the blanking device and naturally fall and are stacked above the material tray 210 in a gravity state to form an approximately conical stacked body, and the scattering mode is divided into two states, namely, the early-stage fast mass scattering and the later-stage slow scattering of a small amount of the materials 500 after the material tray 210 is basically fully stacked until the material tray 210 cannot bear more materials 500 (wherein the materials 500 are particles and powder). Detect material 500's actual humidity through humidity transducer 200, compare actual humidity with comparison humidity, material 500 weight on the material dish 210 calculates according to material 500's nature angle of piling up and reachs, the material 500 nature angle of piling up of different humidity is different, thereby influence material 500's weight on the material dish 210, this device calculates material 500's nature angle of piling up according to material 500 humidity, thereby make controlling means initiative adjustment material dish 210 vertical direction's projection area, when actual humidity ratio is great than humidity, adjust two lift cylinders 410 through controlling means and make material dish 210 produce and the horizontal plane between the corresponding contained angle, and then reduce material dish 210 vertical direction's projection area, and then make material dish 210 load material 500 volume and keep the predetermined amount, when actual humidity ratio is than humidity, make material loading blade 300 stretch out material dish 210 neighboring predetermined length through adjusting telescopic link 120, and then increase the projection area of material dish 210 vertical direction, and then make material dish 210 load material 500 volume and keep the predetermined amount.
In conclusion: the invention is suitable for a quantitative feeding device, flexibly and accurately adjusts and changes the vertical projection area of the material tray according to the weight of materials to be loaded, and effectively improves the working efficiency of quantitative material loading.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.
Claims (8)
1. A material loading device capable of keeping constant material quantity comprises: the device is characterized in that the device comprises a material tray and a lifting assembly which are connected through an assembly frame body;
the upper surface of the material disc is provided with a plurality of humidity sensors, the humidity sensors can transmit signals to a control device, the lower surface of the material disc is provided with a fixing frame, the fixing frame is connected with a material carrying blade, the material carrying blade can move along the radial direction of the material disc and can extend out of the peripheral edge of the material disc, the material carrying blade is arranged below the material disc, and the lower part of the material disc is connected with the assembling frame body;
the circumferential side surface of the assembling frame body is provided with a telescopic rod, one end of the telescopic rod is connected with the material carrying blade, the other end of the telescopic rod is connected with the assembling frame body, the lower end of the assembling frame body is provided with a hinge assembly, the hinge assembly is connected with the lifting assembly, and the lifting assembly consists of two lifting cylinders;
the control device can transmit commands to the telescopic rod and the lifting assembly, the telescopic rod and the lifting assembly can adjust the length according to the commands transmitted by the control device, and the lengths of the two lifting columns can be adjusted independently.
2. A material loading device capable of keeping a constant amount of material according to claim 1, wherein: a plurality of humidity transducer equidirectionally distribute in the material dish surface, humidity transducer can with material direct contact, just humidity transducer upper surface with material dish surface parallel and level.
3. A material loading device capable of keeping a constant amount of material according to claim 1, wherein: the material carrying blades are distributed at equal angles along the circumferential side face of the assembling frame body, and the upper surfaces of the material carrying blades are tightly attached to the lower surface of the material tray.
4. A material loading device capable of keeping a constant amount of material according to claim 1, wherein: and two side surfaces of each material loading blade are respectively provided with a fixing frame.
5. A material loading device capable of keeping a constant material amount according to claim 4, wherein: the two fixing frames are provided with bosses, the side faces of the material loading blades are provided with guide grooves, and the bosses and the guide grooves can be matched with each other.
6. A material loading device capable of keeping a constant material amount according to claim 5, wherein: the two guide grooves are parallel to each other, the two bosses are concentric and fixed at intervals, and the guide grooves slide between the two bosses along the telescopic direction of the telescopic rod.
7. A material oven dry quantity adapting method of a material loading device according to claim 1, characterized by: after the material tray is basically full of materials, detecting the actual humidity of the materials through the humidity sensor, comparing the actual humidity with the comparative humidity, and slowly sprinkling a small amount of the materials to the material tray until the material tray can not bear more materials;
when the actual humidity is larger than the comparison humidity, the two lifting cylinders are adjusted to enable the material tray to generate a corresponding included angle with the horizontal plane, so that the projection area of the material tray in the vertical direction is reduced, and the material loading amount of the material tray is kept at a preset amount;
when the actual humidity is smaller than the comparative humidity, the telescopic rod is adjusted to enable the material loading blades to stretch out of the peripheral edge of the material tray by a preset length, so that the projection area of the material tray in the vertical direction is increased, and the material loading amount of the material tray is kept at a preset amount.
8. The material oven dry weight adapting method of the material loading device according to claim 7, characterized in that: the material tray is in a horizontal state, the material carrying blades do not extend out of the peripheral edge of the material tray, and the corresponding included angle between the upper surface of the material tray and the horizontal plane is zero, when the weight of the materials carried by the material tray is just the standard weight, the actual humidity of the carried materials is the comparison humidity.
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