CN217049310U - Rice pushing and dropping device - Google Patents

Abstract

The utility model provides a rice impels device of falling meal, include: the rice pushing device comprises a hopper, a rice pushing shaft and a loosening shaft are sequentially arranged in the hopper along the discharging direction, the ends of the rice pushing shaft and the loosening shaft in the length direction are connected to opposite side walls of the hopper in a spanning mode, rice pushing pieces are arranged on the axial side walls of the rice pushing shaft, loosening teeth are arranged on the axial side walls of the loosening shaft, and rice entering the hopper is pushed in and loosened; the rice pushing cavity is positioned at the discharge port, coats the discharge port, is internally provided with a screw shaft, and is driven by the second driving piece to rotate so as to push rice falling from the discharge port downwards in one process; and the rice falling mechanism is connected with the tail end of the rice pushing cavity and is used for cutting the rice pushed into the rice pushing cavity. The device is not affected by the temperature and viscosity of the rice; the rice is cut and dropped, cold chain split charging of the rice is completed, hot chain rice split charging is not needed, extra cooling is not needed, power consumption is saved, cost is reduced, and production efficiency is improved.

Description

Rice pushing and dropping device

Technical Field

The utility model belongs to the technical field of central kitchen equipment, concretely relates to rice impels device of falling meal.

Background

In recent years, with the development and expansion of central kitchen enterprises, rice dispensers have become one of the essential components in this field. The rice racking machine is specially made for central kitchen enterprises, and is special equipment for loading cooked rice into a selected special container according to certain shape and gram weight according to the requirements of the central kitchen enterprises.

The method is divided into two types of hot chain subpackage and cold chain subpackage according to the temperature of rice during subpackage, wherein the hot chain subpackage is carried out at the temperature of more than 85 ℃ according to the industry requirement, the cold chain subpackage is carried out at the temperature of less than 10 ℃ so as to meet the requirement of national food sanitation on the number of bacterial populations, and because the bacteria are mainly divided into three types, namely low-temperature bacteria (10-30 ℃), medium-temperature bacteria (30-50 ℃) and high-temperature bacteria (50-75 ℃), the propagation and overproof of the bacterial populations can be reduced by avoiding the temperature range.

The thermal chain subpackaging is mainly used for subpackaging the fully cooked rice, the surface moisture of the rice is high in volatilization speed at high temperature, the viscosity of adhesion among rice grains is relatively small, the separated adhered rice grains are small at the moment, and are easy to separate under the action of external force, so that the gram weight precision is relatively easy to guarantee, the thermal chain subpackaging is mainly used for instant food, the requirement on the gram weight precision is not high, and the equipment is mainly used in the current market.

The cold chain sub-packaging is to sub-package fully cooked or post-cooked rice, wherein the post-cooked rice is prepared by only cooking 7 and 8 in the cooking process, and the rice with completely the same characteristics as the currently cooked rice can be obtained after being heated at set time and temperature according to prompts before being eaten by consumers after being processed by a specific process.

In view of the fact that gelatinized starch is precipitated when the temperature of cooked rice is reduced to below 20 ℃, viscosity is increased, resistant starch is generated, and viscosity is greatly increased along with temperature reduction, untreated pure rice is difficult to process into small units due to high viscosity, and the rice is separated by special means and becomes massive once meeting, so that no manufacturer can directly carry out cold chain subpackaging at present through information consultable at present, and even a Japanese related enterprise which is skillfully researched does not have related information on the aspect.

At present, when cold chain subpackaging is carried out on the market, rice is quickly dried, or the rice is mixed with grease, egg liquid and the like, so that the viscosity of rice grains is completely lost, and in the condition, the gram weight and the precision of the rice can be easily controlled during subpackaging. However, the additives are mixed in the cooked rice, so that the taste of the cooked rice is reduced. In addition, more enterprises often adopt hot-chain subpackage, and the rice is cooled to the required temperature through a quick cooling machine or a refrigerating machine after subpackage, so that the mode is low in efficiency, high in energy consumption and high in cost, is not beneficial to continuous production of the enterprises, and is especially suitable for large enterprises with production capacity of hundreds of thousands of millions of daily parts like civil aviation, railways and large central kitchens, because the packaged rice occupies large space, heat cannot be timely dissipated, and the production efficiency of the enterprises is seriously restricted.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned defects in the prior art, the present invention aims to provide a rice-pushing and rice-dropping device.

In order to achieve the above object, the embodiment of the present invention adopts the following technical solutions:

a rice advancing and dropping device, comprising: the top of the hopper is provided with a feeding port, the bottom of the hopper is provided with a discharging port, a rice stirring shaft and a loosening shaft are sequentially arranged in the hopper along the discharging direction, the ends of the rice stirring shaft and the loosening shaft in the length direction are connected to opposite side walls of the hopper in a crossing mode, rice stirring sheets are arranged on the axial side walls of the rice stirring shaft, loosening teeth are arranged on the axial side walls of the loosening shaft, the rice stirring shaft and the loosening shaft are driven to rotate by a first driving piece to drive the rice stirring sheets and the loosening teeth to rotate, and rice entering the hopper is stirred into the hopper and loosened; the rice pushing cavity is positioned at the discharge port, coats the discharge port, is internally provided with a screw shaft, and is driven by the second driving piece to rotate so as to push rice falling from the discharge port to a next process; and the rice dropping mechanism is connected with the tail end of the rice pushing cavity and used for cutting the rice pushed into the rice dropping mechanism, and when the volume of the rice in the rice dropping mechanism reaches a preset value, the rice is automatically cut, and the rice is automatically conveyed to a lunch box right below the rice dropping mechanism.

According to the technical scheme provided by the embodiment of the application, the plurality of rice poking shafts are arranged in the hopper in parallel, four groups of rice poking pieces are circumferentially arranged on each rice poking shaft, each rice poking piece extends along the length direction of each rice poking shaft, and the free end of each rice poking piece is of a saw-toothed structure; the quantity of taking off the pine axle is a plurality of and parallel arrangement and is in inside the hopper, every take off the loose epaxial circumference of pine and be equipped with four rows and take off the pine tooth, every takes off the pine tooth and follows the radial direction of taking off the pine axle extends.

According to the technical scheme that this application embodiment provided, first driving piece is first motor, first motor passes through the chain and is connected with the drive wheel transmission, the drive wheel is in with the setting dial meal axle and take off the gear engagement of loose axle tip and be connected.

According to the technical scheme provided by the embodiment of the application, the second driving piece is a second motor, and a driving shaft of the second motor is in driving connection with the end part of the spiral shaft through a gear.

According to the technical scheme that this application embodiment provided, push away the meal chamber with the mechanism middle of falling the meal is equipped with the type ware of moulding, the type ware of moulding have will push away the meal chamber with the type chamber of moulding of the mechanism intercommunication of falling the meal, it is circular to mould the cross sectional shape that the type chamber is close to pushing away the meal chamber, it is square to mould the cross sectional shape that the type chamber is close to the mechanism of falling the meal.

According to the technical scheme provided by the embodiment of the application, the rice falling mechanism comprises: the side plates are symmetrically arranged, and a transverse rail and a longitudinal rail are arranged on the side plates; the volume box is used for containing the rice pushed by the rice pushing cavity, is provided with a cavity body which is communicated along the rice pushing direction, is bridged on the two transverse rails and can transversely move along the transverse rails; the cutting plate is positioned on one side of the volume box relatively close to the rice pushing direction, two ends of the cutting plate are bridged on the two longitudinal rails and move longitudinally along the longitudinal rails under the driving of the third driving piece, and the rice entering the volume box is cut off; the restraint plate is positioned on one side, far away from each other, of the two side plates, and is provided with a restraint rail corresponding to the longitudinal rail, two ends of the cutting plate penetrate through the longitudinal rail and then enter the corresponding restraint rail, two ends of the volume box penetrate through the transverse rail and then are fixedly connected with the restraint plate, and the restraint rail is divided into a vertical section and an inclined section; cut off rice when the slitting board moves down along vertical section, when the slitting board moves along the slope section, drive about the board and then drive the volume box and remove to keeping away from the ejection of compact direction, cut rice and lose support and drop naturally.

According to the technical scheme provided by the embodiment of the application, one end, far away from the rice pushing cavity, of each of the two side plates is bridged with a supporting plate, a supporting shaft capable of reciprocating along the normal direction of the supporting plate penetrates through the supporting plate, a pressure sensor is arranged at one end, close to the rice pushing cavity, of the supporting shaft, a limiting plate is arranged at one side, close to the rice pushing cavity, of the pressure sensor, and the limiting plate enters the volume box; the pressure sensor is connected with the third driving piece.

According to the technical scheme that this application embodiment provided, the third driving piece is the cylinder, the gas pole of cylinder with slitting board fixed connection.

According to the technical scheme that this application embodiment provided, run through in the backup pad and be equipped with spacing axle spare.

The utility model discloses following beneficial effect has:

according to the rice pushing and falling device, the rice pushing shaft and the loosening shaft are arranged in the hopper, and the rice pushing sheet and the loosening teeth are arranged on the rice pushing shaft and the loosening shaft respectively, so that rice at the feeding port is pushed in and loosened without being influenced by the temperature and viscosity of the rice; then the rice is pushed into the rice dropping mechanism by the rice pushing cavity, the rice dropping mechanism cuts and drops the rice, cold chain subpackaging of the rice is completed, hot chain rice subpackaging is not needed, extra cooling is not needed, power consumption is saved, cost is reduced, and production efficiency is improved.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:

FIGS. 1-3 are schematic views of a rice pushing and dropping device according to the present invention;

fig. 4-6 are schematic structural views of the rice falling mechanism.

Description of the reference numerals:

100. a hopper; 200. a rice pushing cavity; 300. a molding device; 400. a rice falling mechanism;

110. a feeding port; 120. a discharge port; 130. a rice stirring shaft; 140. a first driving member; 150. loosening the shaft;

131. stirring the rice slices; 141. a first motor; 142. a driving wheel; 143. a gear; 151. loosening the teeth;

210. a screw shaft; 220. a second driving member; 221. a second motor;

310. a molding cavity;

410. a side plate; 420. a volume box; 430. cutting the plate; 440. a restraint plate; 450. a support plate; 460. a pressure sensor; 470. a third driving member;

411. a transverse rail; 412. a longitudinal rail;

441. constraining the track;

451. a support shaft; 452. a limiting shaft part;

461. and a limiting plate.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not to be construed as limiting the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present disclosure, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "clockwise", "counterclockwise", "front", "rear", "side", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that are conventionally laid out when the disclosed products are used, and are only for convenience of describing and simplifying the present disclosure, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present disclosure. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "suspended" and the like do not imply that the components are absolutely horizontal or suspended, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present disclosure, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "butted" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; 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 disclosure can be understood in specific instances by those of ordinary skill in the art.

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

A rice-propelling rice-dropping device comprising: the rice cooker comprises a hopper 100, wherein the top of the hopper is provided with a feeding hole 110, the bottom of the hopper is provided with a discharging hole 120, the interior of the hopper is sequentially provided with a rice stirring shaft 130 and a loosening shaft 150 along the discharging direction, the ends of the rice stirring shaft 130 and the loosening shaft 150 in the length direction are connected across the opposite side walls of the hopper, the axial side wall of the rice stirring shaft 130 is provided with a rice stirring piece 131, the axial side wall of the loosening shaft 150 is provided with loosening teeth 151, the rice stirring shaft 130 and the loosening shaft 150 are driven by a first driving piece 140 to rotate, the rice stirring piece 131 and the loosening teeth 151 are driven to rotate, and rice entering the hopper 100 is stirred in and loosened; a rice pushing cavity 200 located at the discharge port 120 and covering the discharge port 120, wherein a screw shaft 210 is provided inside the rice pushing cavity, and the screw shaft 210 is driven by a second driving member 220 to rotate so as to push the rice dropped from the discharge port 120 downward in one process; and a rice dropping mechanism 300 connected to the end of the rice pushing chamber 200 for cutting the rice pushed therein, wherein when the volume of the rice in the rice dropping mechanism 300 reaches a preset value, the rice is automatically cut, and the rice is automatically conveyed to a lunch box right below the rice dropping mechanism 300.

Referring to fig. 1 and 2 specifically, since the rice pushing and dropping device of the present application is provided with the rice poking shaft 130 and the loosening shaft 150 inside the hopper, and the rice poking shaft 130 and the loosening shaft 150 are respectively provided with the rice poking pieces 131 and the loosening teeth 151, the rice in the feeding port 110 is poked in and loosened without being affected by the temperature and viscosity of the rice; then, the rice is pushed into the rice dropping mechanism 300 through the rice pushing cavity 200, the rice dropping mechanism 300 cuts and drops the rice, cold chain subpackaging of the rice is completed, hot chain rice subpackaging is not needed, extra cooling is not needed, power consumption is saved, cost is reduced, and production efficiency is improved.

In one embodiment of the present application, the middle portion of the hopper 100 to the discharge port 120 is a funnel-shaped structure; the rice stirring shaft 130 is positioned at the initial part of the funnel-shaped structure; the loosening shaft 15 is positioned in the middle of the funnel-shaped structure; the rice pushing cavity 200 is located at the end of the funnel-shaped structure.

Referring to fig. 2, due to the funnel-shaped structure, the rice can be easily poked in and loosened.

Furthermore, a plurality of rice poking shafts 130 are arranged in parallel inside the hopper 100, four groups of rice poking pieces 131 are circumferentially arranged on each rice poking shaft 130, each rice poking piece 131 extends along the length direction of each rice poking shaft 130, and the free end of each rice poking piece 131 is of a saw-toothed structure; the number of the loosening shafts 150 is multiple, the loosening shafts are arranged in the hopper 100 in parallel, and four rows of loosening teeth 151 are circumferentially arranged on each loosening shaft 150. Each ripping tooth 151 extends in a radial direction of the ripping shaft 150.

Referring specifically to fig. 2, it can be understood that, during the rotation of the rice-stirring shafts 130 and the loosening-raking shafts 150, the zigzag structures of the rice-stirring pieces 131 of the adjacent rice-stirring shafts 130 arranged in parallel are engaged with each other, and the loosening-raking teeth on the adjacent loosening-raking shafts 150 are engaged with each other to stir the rice into and loosen the rice.

Further, the first driving member 140 is a first motor 141, the first motor 141 is in transmission connection with a transmission wheel 142 through a chain, and the transmission wheel 142 is in meshing connection with a gear 143 arranged at the end of the rice poking shaft 130 and the loosening shaft 150.

Specifically referring to fig. 3, a gear 143 is disposed at an end of each rice-stirring shaft 130, a gear 143 is disposed at an end of each loosening shaft 150, the gear 143 is engaged with the first driving wheel 142, and when the first motor 141 is started, the driving wheel 142 rotates to drive the gear 143 to rotate, so that the rice-stirring shafts 130 and the loosening shafts 150 synchronously rotate, and the control is convenient and the cost is saved.

In a specific embodiment of the present application, the gear 143, the transmission wheel 142 and the first motor 143 are located on an outer wall of the hopper 100.

Further, the second driving element 220 is a second motor 221, and a driving shaft of the second motor 221 is in driving connection with the end of the screw shaft 210 through a gear.

Specifically, the screw shaft 210 is driven to rotate by the second motor 221, and the rice advances toward the rice dropping mechanism 400 during the advancing process of the screw blades of the screw shaft 210.

Further, a shaper 300 is arranged between the rice pushing cavity 200 and the rice falling mechanism 400, the shaper 300 is provided with a shaping cavity 310 for communicating the rice pushing cavity 200 with the rice falling mechanism 400, the cross section of the shaping cavity 310 close to the rice pushing cavity 200 is circular, and the cross section of the shaping cavity 310 close to the rice falling mechanism 400 is square.

Referring specifically to fig. 5 and 6, the push assembly 400 and the volume case 520 communicate with each other through the molding chamber 310, and the molding chamber 310 is used to extrude the rice. Specifically, one side with a circular cross section corresponds to the rice pushing cavity 200 in shape, so that rice can conveniently and smoothly enter the shaper 300; the side with the square cross section corresponds to the lunch box in shape, so that rice can be conveniently molded.

Further, the rice dropping mechanism 400 includes: the side plates 410 are symmetrically arranged, and a transverse rail 411 and a longitudinal rail 412 are arranged on the side plates 410; a volume box 420 for containing the rice pushed by the rice pushing cavity 200, having a cavity body penetrating along the rice pushing direction, bridging the two transverse rails 411, and being movable transversely along the transverse rails 411; a cutting plate 430 which is positioned on one side of the volume box 420 relatively close to the rice advancing direction, and both ends of which are bridged on the two longitudinal rails 412 and move longitudinally along the longitudinal rails 412 under the driving of a third driving member 470, so as to cut off the rice entering the volume box 420; the restraint plate 440 is positioned on one side of the two side plates 410, which is far away from each other, and is provided with a restraint rail 441 corresponding to the longitudinal rail 412, two ends of the cutting plate 430 penetrate through the longitudinal rail 412 and then enter the corresponding restraint rail 441, two ends of the volume box 420 penetrate through the transverse rail 411 and then are fixedly connected with the restraint plate 440, and the restraint rail 441 is divided into a vertical section and an inclined section; when the cutting plate 430 moves down along the vertical section, rice is cut off, when the cutting plate 430 moves along the inclined section, the restraint plate 440 is driven to drive the volume box 420 to move away from the discharging direction, and the cut rice naturally drops after losing the support.

Referring to fig. 4 in particular, after the rice enters the volume box 420, the third driving member 470 drives the cutting plate 430 to move downwards, the two ends of the cutting plate 430 move along the longitudinal rails 412 and the vertical sections of the constraining rails 441, when the cutting plate moves to the inclined sections of the constraining rails 441, the movement of the cutting plate 430 drives the constraining plate 440 to horizontally move relative to the side plate 410 to one side far away from the discharging direction, and further drives the volume box 420 to move along the horizontal direction to one side far away from the discharging hole 120, so that the cut rice loses support and naturally falls down.

It will be appreciated that the inclined section is inclined towards the dispensing opening such that the movement of the dividing plate 430 along the inclined sections of the longitudinal rail 412 and the restraining rail 441 causes the restraining plate 440 to move away from the dispensing opening.

The rice falling mechanism 400 is used for dividing and cutting rice into small units, rice entering the volume box 420 is easily cut due to the existence of the cutting plate 430, and meanwhile, the volume box 420 moves transversely and the rice naturally falls off due to the fact that the design of the limiting plate 440 and the side plates 410 enables the cutting plate 430 to move downwards when the rice is cut.

Furthermore, a supporting plate 450 is bridged at one end of each of the two side plates 410, which is relatively far away from the rice pushing cavity 200, a supporting shaft 451 capable of reciprocating along the normal direction of the supporting plate 450 penetrates through the supporting plate 450, a pressure sensor 460 is arranged at one end of the supporting shaft 451, which is relatively close to the rice pushing cavity 200, a limiting plate 461 is arranged at one side of the pressure sensor 460, which is relatively close to the rice pushing cavity 200, and the limiting plate 461 enters the volume box 420; the pressure sensor 460 is connected to the third driving member 470.

Referring specifically to fig. 4 and 6, in the initial state, the third driving member 470 is in a non-activated state, and the volume box 420 or the shaper 300 abuts against the end of the rice pushing cavity 200. When the rice enters the volume box 420 and then continuously extrudes the limiting plate 461, the limiting plate 461 and the supporting shaft 417 move along the discharging direction, when the pressure sensor 460 senses that the pressure of the limiting plate 461 reaches a preset value, the limiting plate 461 does not move any more, the fourth driving part 470 of the cutting plate 430 is started, and the cutting plate 430 is driven to start the rice cutting action. Therefore, when the volume box 420 is horizontally displaced away from the discharging direction, the limit plate 461 does not move to push out the rice originally located in the volume box 420, and the rice molded in the volume box 420 naturally falls off without being supported.

Further, the third driving member 470 is an air cylinder, and an air rod of the air cylinder is fixedly connected to the cutting plate 430.

When the air rod extends out of the air cylinder, the cutting plate 430 is driven to move downwards to realize the cutting action of the rice; when the air rod retracts into the air cylinder, the cutting plate 430 is reset to the initial position. The air cylinder is fixed on the mounting plate through a connecting plate, and the side wall of the connecting plate is fixedly connected with the side wall of the air cylinder and the side wall of the mounting plate respectively; the side wall of the gas rod is fixedly connected with the side wall of the cutting plate. The structure is more stable and firm.

Further, a limiting shaft 452 penetrates through the supporting plate 450.

Specifically, referring to fig. 4, the limiting shaft 452 is a limiting bolt, and the thickness of the rice block of the volume box 420 can be adjusted by adjusting the distance that the limiting shaft 452 extends out of the supporting plate 450.

The above description is only a preferred embodiment of the invention and is intended to illustrate the technical principles applied. It will be appreciated by those skilled in the art that the scope of the invention is not limited to the specific combination of the above-mentioned features, but also encompasses other embodiments in which any combination of the above-mentioned features or their equivalents is possible without departing from the scope of the invention. For example, the above features and the technical features (but not limited to) having similar functions disclosed in the present invention are mutually replaced to form the technical solution.

Claims (9)

1. A rice-pushing rice-dropping device is characterized by comprising:

the rice pushing and loosening device comprises a hopper (100), wherein the top of the hopper is provided with a feeding hole (110), the bottom of the hopper is provided with a discharging hole (120), the interior of the hopper is sequentially provided with a rice pushing shaft (130) and a loosening shaft (150) along the discharging direction, the ends of the rice pushing shaft (130) and the loosening shaft (150) in the length direction are connected to opposite side walls of the hopper in a crossing mode, rice pushing pieces (131) are arranged on the axial side wall of the rice pushing shaft (130), loosening teeth (151) are arranged on the axial side wall of the loosening shaft (150), the rice pushing shaft (130) and the loosening shaft (150) are driven by a first driving piece (140) to rotate to drive the rice pushing pieces (131) and the loosening teeth (151) to rotate, and rice entering the hopper (100) is pushed in and loosened;

the rice pushing cavity (200) is positioned at the discharge port (120) and coats the discharge port (120), a screw shaft (210) is arranged in the rice pushing cavity, and the screw shaft (210) is driven by a second driving piece (220) to rotate so as to push rice falling from the discharge port (120) to a next process;

and the rice dropping mechanism (400) is connected with the tail end of the rice pushing cavity (200) and is used for cutting the rice pushed into the rice dropping mechanism, when the rice capacity in the rice dropping mechanism (400) reaches a preset value, the rice is automatically cut, and the rice is automatically conveyed to a lunch box right below the rice dropping mechanism (400).

2. A rice-pushing and rice-dropping device according to claim 1, wherein the rice-pushing shaft (130) is provided in plurality and arranged in parallel inside the hopper (100), each rice-pushing shaft (130) is provided with four sets of rice-pushing pieces (131) in the circumferential direction, each rice-pushing piece (131) extends along the length direction of the rice-pushing shaft (130) and the free end thereof is of a saw-toothed structure;

the number of the loosening shafts (150) is multiple and the loosening shafts are arranged in parallel inside the hopper (100), four rows of loosening teeth (151) are circumferentially arranged on each loosening shaft (150), and each loosening tooth (151) extends along the radial direction of the loosening shaft (150).

3. A rice-pushing and rice-dropping device according to claim 2,

the first driving part (140) is a first motor (141), the first motor (141) is in transmission connection with a transmission wheel (142) through a chain, and the transmission wheel (142) is in meshing connection with gears (143) arranged at the end parts of the rice poking shaft (130) and the rice raking shaft (150).

4. A rice-pushing and rice-dropping device according to claim 1,

the second driving piece (220) is a second motor (221), and a driving shaft of the second motor (221) is in driving connection with the end part of the spiral shaft (210) through a gear.

5. The rice-pushing and rice-dropping device according to claim 1, wherein a shaper (300) is disposed between the rice-pushing cavity (200) and the rice-dropping mechanism (400), the shaper (300) has a shaping cavity (310) for communicating the rice-pushing cavity (200) with the rice-dropping mechanism (400), the cross-sectional shape of the shaping cavity (310) close to the rice-pushing cavity (200) is circular, and the cross-sectional shape of the shaping cavity (310) close to the rice-dropping mechanism (400) is square.

6. A rice-propelling rice-dropping device according to claim 1, wherein said rice-dropping mechanism (400) comprises:

the side plates (410) are symmetrically arranged, and transverse rails (411) and longitudinal rails (412) are arranged on the side plates (410);

a volume box (420) for containing the rice pushed by the rice pushing cavity (200), having a cavity body which is penetrated along the rice pushing direction, bridging the two transverse rails (411) and being capable of transversely moving along the transverse rails (411);

a cutting plate (430) which is positioned on one side of the volume box (420) relatively close to the rice advancing direction, and the two ends of the cutting plate are bridged on the two longitudinal rails (412) and move longitudinally along the longitudinal rails (412) under the driving of a third driving piece (470) to cut the rice entering the volume box (420);

the restraint plates (440) are located on the sides, far away from each other, of the two side plates (410), and are provided with restraint rails (441) corresponding to the longitudinal rails (412), the two ends of the cutting plates (430) penetrate through the longitudinal rails (412) and then enter the corresponding restraint rails (441), the two ends of the volume boxes (420) penetrate through the transverse rails (411) and then are fixedly connected with the restraint plates (440), and the restraint rails (441) are divided into vertical sections and inclined sections; when the cutting plate (430) moves downwards along the vertical section, rice is cut off, when the cutting plate (430) moves along the inclined section, the restriction plate (440) is driven to further drive the volume box (420) to move towards the direction far away from the discharging direction, and the cut rice loses support and naturally drops.

7. A rice pushing and falling device as claimed in claim 6, wherein a support plate (450) is bridged on one end of each of the two side plates (410) relatively far away from the rice pushing chamber (200), a support shaft (451) capable of reciprocating in the normal direction of the support plate (450) penetrates through the support plate, a pressure sensor (460) is arranged on one end of the support shaft (451) relatively close to the rice pushing chamber (200), a limit plate (461) is arranged on one side of the pressure sensor (460) relatively close to the rice pushing chamber (200), and the limit plate (461) enters the volume box (420); the pressure sensor (460) is connected to the third drive member (470).

8. A rice-pushing and rice-dropping device as claimed in claim 6, wherein said third driving member (470) is an air cylinder, and an air rod of said air cylinder is fixedly connected to said cutting plate (430).

9. A rice pushing and dropping device as claimed in claim 7, wherein a shaft stopper (452) is provided through said supporting plate (450).

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