阅读说明：本技术 一种斗式提升机定量进料装置 (Quantitative feeding device of bucket elevator ) 是由 王田江 于 2020-05-06 设计创作，主要内容包括：一种斗式提升机定量进料装置,包括工作箱以及设于所述工作箱内的工作腔,所述工作腔内设有限位回流装置和定量进料装置,所述工作箱的后侧设有动力传送装置,所述定量进料装置包括设于所述工作腔内的定量块,所述定量块的顶部端面上设有向下延伸的定量槽,所述定量槽的前侧端壁和后侧端壁之间固设有定量块限位板；本装置能有效的避免提升机在进料时的洒落问题,减少比必要的浪费,同时本装置内设有回流机构,使得在提升机运行的过程中不会因碰撞而导致机械性损伤,本装置内设有定量进料机构,该机构可以实现定量进料以及提升的定量喂料,减少浪费,同时本装置中还设有进给机构。(A quantitative feeding device of a bucket elevator comprises a working box and a working cavity arranged in the working box, wherein a limiting backflow device and a quantitative feeding device are arranged in the working cavity, a power transmission device is arranged at the rear side of the working box, the quantitative feeding device comprises a quantitative block arranged in the working cavity, a downward extending quantitative groove is formed in the top end surface of the quantitative block, and a quantitative block limiting plate is fixedly arranged between the front side end wall and the rear side end wall of the quantitative groove; this device can effectually avoid the unrestrained problem of lifting machine when the feeding, reduces than necessary waste, is equipped with backward flow mechanism in this device simultaneously for can not lead to mechanical damage because of the collision at the in-process of lifting machine operation, be equipped with quantitative feed mechanism in this device, this mechanism can realize quantitative feeding and the quantitative feed that promotes, reduces extravagantly, still is equipped with feed mechanism in this device simultaneously.)

1. The utility model provides a bucket elevator ration feed arrangement, includes the work box and locates working chamber in the work box, its characterized in that: the quantitative feeding device comprises a quantitative block arranged in the working cavity, a downward extending quantitative groove is formed in the top end face of the quantitative block, a quantitative block limiting plate is fixedly arranged between the front end wall and the rear end wall of the quantitative groove, a first quantitative limiting groove is formed in the front end face and the rear end face of the quantitative block limiting plate, a first quantitative limiting plate is arranged in the first quantitative limiting groove in a sliding fit mode, the first quantitative limiting plate positioned on the rear side extends backwards, the first quantitative limiting plate positioned on the front side extends forwards, a first quantitative limiting spring is fixedly arranged between the first side end face, close to each other, of the first quantitative limiting plate and the end wall, close to each other, of the first quantitative limiting groove, a second quantitative limiting groove is formed in the front end face and the rear end face of the working box, sliding fit is equipped with second ration limiting plate in the second ration limiting groove, is located the rear side second ration limiting plate extends backward, is located the front side second ration limiting plate extends forward, a lateral surface that second ration limiting plate is close to each other with a lateral end wall that second ration limiting groove is close to each other has set firmly the spacing spring of second ration between, running fit is equipped with three blanking axle between the front side end wall in ration groove and the rear side end wall, the blanking axle left and right sides direction is arranged.

2. The quantitative feeding device of the bucket elevator as set forth in claim 1, wherein: a blanking plate is fixedly arranged on the blanking shaft, a blanking torsion spring is fixedly arranged between the front end face and the rear end face of the blanking plate and the front end wall and the rear end wall of the quantifying groove respectively, a second blanking limiting magnet is fixedly arranged on the top end face of the blanking torsion spring, a first blanking limiting magnet is fixedly arranged on the rear end wall of the quantifying groove, the second blanking limiting magnet is positioned under the first blanking limiting magnet, a plurality of quantitative moving grooves extending in the front-back direction are arranged on the bottom end face of the quantifying block, an upward extending feeding block is arranged on the top end wall of the working chamber, a storage groove is arranged on the top end face of the feeding block, a downward extending release groove communicated with the working chamber is arranged on the bottom end wall of the storage groove, a first release limiting groove is arranged on the right end wall of the release groove, and a second release limiting groove communicated with the working chamber is arranged on the bottom end wall of the first release limiting groove, the first release limiting groove is internally provided with a first release limiting plate in a sliding fit mode, and a release limiting spring is fixedly arranged between the right end face of the first release limiting plate and the right end wall of the first release limiting groove.

3. The quantitative feeding device of the bucket elevator as set forth in claim 2, wherein: the bottom end face of the first release limiting groove is fixedly provided with a second release limiting plate which extends downwards to the working cavity through the second release limiting groove, a quantitative bearing fixing plate is fixedly arranged between the front end wall and the rear end wall of the working cavity, the quantitative bearing fixing plate and the right end wall of the working cavity are symmetrically arranged in the front-back direction and are matched with each other in a rotating manner to be provided with a quantitative bearing fixing shaft, the quantitative bearing fixing shaft is fixedly provided with a quantitative bearing plate, a quantitative bearing torsion spring is fixedly arranged between the left end wall of the quantitative bearing plate and the right end face of the quantitative bearing fixing plate and between the right end face of the quantitative bearing plate and the right end wall of the working cavity, the top end face of the quantitative bearing plate is provided with a second quantitative sliding limiting groove and a first quantitative sliding limiting groove, and the first quantitative sliding limiting groove is positioned between the right sections of the first limiting groove, the second quantitative sliding limiting groove is positioned between the right sections of the second limiting grooves.

4. The quantitative feeding device of the bucket elevator as set forth in claim 1, wherein: the limiting backflow device comprises a first limiting groove and a second limiting groove which are arranged on the front end wall and the rear end wall of the working cavity in a port-shaped manner, the upper section, the lower section and the right section of the second limiting groove are positioned in the end wall, away from the front and rear directions of the first limiting groove, the right section of the second limiting groove is positioned on the left side of the right section of the first limiting groove, the second limiting groove extends in the front and rear directions through the first limiting groove, the first quantitative limiting plate extends into the second limiting groove and is in sliding fit with the second limiting groove, the second quantitative limiting plate extends into the first limiting groove and is in sliding fit with the first limiting groove, the right end wall of the second limiting groove is provided with a passing groove extending rightwards, two first transmission shafts are arranged between the front end wall and the rear end wall of the working cavity in a rotating fit manner, and first transmission rollers are fixedly arranged on the first transmission shafts, the transmission cooperation is equipped with first conveyer belt between the first conveyer roller, a plurality of first conveying teeth have set firmly on the outside terminal surface of first conveyer belt, first conveying tooth is located first spacing groove downside, normal running fit is equipped with the second conveying axle that two left right directions were arranged between the front end wall of working chamber and the back side end wall, the epaxial second conveying roller that has set firmly of second conveying, the transmission cooperation is equipped with the second conveyer belt between the second conveying roller, a plurality of second conveying teeth have set firmly on the outside terminal surface of second conveyer belt, second conveying tooth is located the spacing inslot side of second.

5. The quantitative feeding device of the bucket elevator as set forth in claim 1, wherein: the power transmission device comprises a power motor fixedly arranged on the rear end face of the working box, the power motor is in power fit with the first transmission shaft on the right side, the first transmission shaft on the left side extends backwards and is fixedly provided with a first belt wheel, the rear end face of the working box is rotatably provided with a first transmission shaft in a fit manner, the first transmission shaft is fixedly provided with a second belt wheel and a first gear, the first gear is positioned on the rear side of the second belt wheel, a transmission belt is arranged between the second belt wheel and the first belt wheel in a transmission fit manner, the second transmission shaft on the right side extends backwards and is fixedly provided with a second gear, the second gear is meshed with the first gear, the rear end face of the second gear on the left side is fixedly provided with a backwards extending worm transmission, and the rear end face of the working box is fixedly provided with two fixing plates which are arranged in the vertical direction, running fit is equipped with the second transmission shaft between the fixed plate, be equipped with backward along extremely on the rear end face of work box the groove of dodging of working chamber, set firmly transmission worm wheel and friction pulley on the second transmission shaft, the transmission worm wheel is located the downside of friction pulley and with the meshing of drive worm, the passing through of friction pulley the friction pulley extends to in the working chamber.

Technical Field

The invention relates to the technical field of elevators, in particular to a quantitative feeding device of a bucket elevator.

Background

Bucket elevator utilizes a series of rigid couplings to transport the bulk cargo upwards at vertical or near vertical direction at the hopper on drag chain or sticky tape, has simple structure, the maintenance cost is low, high conveying efficiency, the lift is high, the operation is stable, application scope is wide etc. advantages, but bucket elevator can only promote for powder or particulate matter, can not avoid the unrestrained and raise dust of material at the in-process of feeding and promotion, bucket elevator must even feed simultaneously, increase the feed volume suddenly and cause the material of bottom to pile up easily.

Disclosure of Invention

Aiming at the technical defects, the invention provides a quantitative feeding device of a bucket elevator, which can overcome the defects.

The invention relates to a quantitative feeding device of a bucket elevator, which comprises a working box and a working cavity arranged in the working box, wherein a limiting backflow device and a quantitative feeding device are arranged in the working cavity, a power transmission device is arranged at the rear side of the working box, the quantitative feeding device comprises a quantitative block arranged in the working cavity, a quantitative groove extending downwards is arranged on the top end surface of the quantitative block, a quantitative block limiting plate is fixedly arranged between the front end wall and the rear end wall of the quantitative groove, a first amount limiting groove is arranged on the front end surface and the rear end surface of the quantitative block limiting plate, a first amount limiting plate is arranged in the first amount limiting groove in a sliding fit manner, the first amount limiting plate positioned at the rear side extends backwards, the first amount limiting plate positioned at the front side extends forwards, and a first amount limiting plate positioned between the first side end surface of the first amount limiting plates, which are close to each other, and the end wall of the first amount limiting groove, are close The spring, be equipped with the quantitative spacing groove of second when the preceding terminal surface of work box and the rear end terminal surface, the quantitative spacing inslot sliding fit of second is equipped with the quantitative limiting plate of second, is located the rear side the quantitative limiting plate of second ranging back extends, is located the front side the quantitative limiting plate of second extends forward, the quantitative limiting plate of second be close to each other a side terminal surface with the quantitative spacing groove of second has set firmly the quantitative spacing spring of second between the side end wall that is close to each other, running fit is equipped with three blanking axle between the front end wall in quantitative groove and the rear end side end wall, blanking axle left and right sides direction arranges.

Preferably, a blanking plate is fixedly arranged on the blanking shaft, a front end face and a rear end face of the blanking plate respectively and fixedly provided with a blanking torsion spring between a front end wall and a rear end wall of the quantitative groove, a second blanking limiting magnet is fixedly arranged on a top end face of the blanking torsion spring, a first blanking limiting magnet is fixedly arranged on a rear end wall of the quantitative groove, the second blanking limiting magnet is located on the lower side of the first blanking limiting magnet, a plurality of front and rear direction extending quantitative moving grooves are arranged on a bottom end face of the quantitative block, an upward extending feeding block is arranged on a top end wall of the working chamber, a storage groove is arranged on the top end face of the feeding block, a downward extending releasing groove communicated with the working chamber is arranged on the bottom end wall of the storage groove, a first releasing limiting groove is arranged on a right end wall of the releasing groove, a downward extending block is arranged on the bottom end wall of the first releasing limiting groove and a second releasing limiting groove communicated with the working chamber The first release limiting groove is internally provided with a first release limiting plate in a sliding fit mode, and a release limiting spring is fixedly arranged between the right end face of the first release limiting plate and the right end wall of the first release limiting groove.

Preferably, a second release limiting plate extending downwards to the working cavity through the second release limiting groove is fixedly arranged on the bottom end face of the first release limiting groove, a quantitative bearing fixing plate is fixedly arranged between the front end wall and the rear end wall of the working cavity, a quantitative bearing fixing shaft is symmetrically arranged between the quantitative bearing fixing plate and the right end wall of the working cavity in a front-back manner and is in running fit with the front-back direction, a quantitative bearing plate is fixedly arranged on the quantitative bearing fixing shaft, a quantitative bearing torsion spring is fixedly arranged between the left end wall of the quantitative bearing plate and the right end face of the quantitative bearing fixing plate and between the right end face of the quantitative bearing plate and the right end wall of the working cavity, a second quantitative sliding limiting groove and a first quantitative sliding limiting groove are arranged on the top end face of the quantitative bearing plate, and the first quantitative sliding limiting groove is located between the right sections of the first limiting groove, the second quantitative sliding limiting groove is positioned between the right sections of the second limiting grooves.

Preferably, the limiting backflow device comprises a first limiting groove and a second limiting groove which are arranged on the front end wall and the rear end wall of the working cavity in a shape like a Chinese character kou, the upper section, the lower section and the right section of the second limiting groove are positioned in the end wall which is far away from the first limiting groove in the front-rear direction, the right section of the second limiting groove is positioned on the left side of the right section of the first limiting groove, the second limiting groove extends in the front-rear direction through the first limiting groove, the first quantitative limiting plate extends into the second limiting groove and is in sliding fit with the second limiting groove, the second quantitative limiting plate extends into the first limiting groove and is in sliding fit with the first limiting groove, a through groove extending rightwards is arranged on the end wall on the right side of the second limiting groove, two first transmission shafts are arranged between the front end wall and the rear end wall of the working cavity in a rotating fit manner, and first transmission rollers are fixedly arranged on the first transmission shafts, the transmission cooperation is equipped with first conveyer belt between the first conveyer roller, a plurality of first conveying teeth have set firmly on the outside terminal surface of first conveyer belt, first conveying tooth is located first spacing groove downside, normal running fit is equipped with the second conveying axle that two left right directions were arranged between the front end wall of working chamber and the back side end wall, the epaxial second conveying roller that has set firmly of second conveying, the transmission cooperation is equipped with the second conveyer belt between the second conveying roller, a plurality of second conveying teeth have set firmly on the outside terminal surface of second conveyer belt, second conveying tooth is located the spacing inslot side of second.

Preferably, the power transmission device includes a power motor fixedly arranged on the rear end face of the working box, the power motor is in power fit with the first transmission shaft positioned on the right side, the first transmission shaft positioned on the left side extends backwards and is fixedly provided with a first pulley on the rear end face, the rear end face of the working box is rotatably provided with a first transmission shaft in fit, the first transmission shaft is fixedly provided with a second pulley and a first gear, the first gear is positioned on the rear side of the second pulley, a transmission belt is in transmission fit between the second pulley and the first pulley, the second transmission shaft positioned on the right side extends backwards and is fixedly provided with a second gear on the rear end face, the second gear is engaged with the first gear, a transmission worm extending backwards is fixedly arranged on the rear end face of the second gear positioned on the left side, and two fixing plates arranged in the up-down direction are fixedly arranged on the rear end face of the working box, running fit is equipped with the second transmission shaft between the fixed plate, be equipped with backward along extremely on the rear end face of work box the groove of dodging of working chamber, set firmly transmission worm wheel and friction pulley on the second transmission shaft, the transmission worm wheel is located the downside of friction pulley and with the meshing of drive worm, the passing through of friction pulley the friction pulley extends to in the working chamber.

To sum up, this device can effectually avoid the unrestrained problem of lifting machine when the feeding, reduce than necessary waste, be equipped with backward flow mechanism in this device simultaneously for can not lead to mechanical damage because of the collision at the in-process of lifting machine operation, be equipped with quantitative feed mechanism in this device, the quantitative feed that quantitative feed and promotion can be realized to this mechanism, it is extravagant to reduce, still be equipped with feed mechanism in this device simultaneously, be used for guaranteeing that the stability of this device operation avoids the error, this device mechanism is simple and safe is fit for promoting in each lifting machine manufacturer and use factory.

Drawings

In order to more clearly illustrate the embodiments of the 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, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic structural view of a quantitative feeding device of a bucket elevator of the present invention;

FIG. 2 is a schematic view taken at A-A in FIG. 1;

FIG. 3 is a schematic view at B-B of FIG. 2;

fig. 4 is a schematic view at C in fig. 1.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

The invention will now be described in detail with reference to fig. 1-4, for convenience of description, the following orientations will now be defined: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

As shown in fig. 1-4, a quantitative feeding device of a bucket elevator of the device of the present invention includes a working box 10 and a working chamber 11 disposed in the working box 10, a limiting backflow device and a quantitative feeding device are disposed in the working chamber 11, a power transmission device is disposed at the rear side of the working box 10, the quantitative feeding device includes a quantitative block 14 disposed in the working chamber 11, a downward extending quantitative groove 15 is disposed on the top end surface of the quantitative block 14, a quantitative block limiting plate 16 is fixedly disposed between the front end wall and the rear end wall of the quantitative groove 15, first quantitative limiting grooves 17 are disposed on the front end surface and the rear end surface of the quantitative block limiting plate 16, a first quantitative limiting plate 18 is slidably disposed in the first quantitative limiting groove 17, the first quantitative limiting plate 18 at the rear side extends rearward, the first quantitative limiting plate 18 at the front side extends forward, first quantitative limiting plate 18 is close to each other first side end face with first quantitative limiting groove 17 has set firmly first quantitative limiting spring 19 between being close to each other a side end wall, the preceding side end face and the rear end face of work box 10 are equipped with second quantitative limiting groove 20, sliding fit is equipped with second quantitative limiting plate 21 in second quantitative limiting groove 20, are located the rear side second quantitative limiting plate 21 extends backward, is located the front side second quantitative limiting plate 21 extends forward, a side end face that second quantitative limiting plate 21 is close to each other with second quantitative limiting groove 20 has set firmly second quantitative limiting spring 22 between a side end wall that is close to each other, rotating fit is equipped with three blanking axle 23 between the front end wall of quantitative groove 15 and the rear end wall, blanking axle 23 left and right sides orientation arranges.

Beneficially, a blanking plate 24 is fixedly arranged on the blanking shaft 23, a blanking torsion spring 25 is fixedly arranged between a front end face and a rear end face of the blanking plate 24 and a front end wall and a rear end wall of the quantifying groove 15, respectively, a second blanking limiting magnet 27 is fixedly arranged on a top end face of the blanking torsion spring 25, a first blanking limiting magnet 26 is fixedly arranged on a rear end wall of the quantifying groove 15, the second blanking limiting magnet 27 is located below the first blanking limiting magnet 26, a plurality of quantitative moving grooves 28 extending in the front-rear direction are arranged on a bottom end face of the quantifying block 14, an upward extending feeding block 29 is arranged on a top end wall of the working chamber 11, a storage groove 30 is arranged on a top end face of the feeding block 29, a downward extending release groove 31 communicated with the working chamber 11 is arranged on a bottom end wall of the storage groove 30, a first release limiting groove 32 is arranged on a right end wall of the release groove 31, the bottom end wall of the first release limiting groove 32 is provided with a second release limiting groove 33 which extends downwards and is communicated with the working cavity 11, the first release limiting groove 32 is internally provided with a first release limiting plate 34 in a sliding fit mode, and a release limiting spring 35 is fixedly arranged between the right end face of the first release limiting plate 34 and the right end wall of the first release limiting groove 32.

Beneficially, a second release limiting plate 64 extending downwards to the working chamber 11 through the second release limiting groove 33 is fixedly arranged on the bottom end surface of the first release limiting groove 32, a quantitative bearing fixing plate 36 is fixedly arranged between the front side end wall and the rear side end wall of the working chamber 11, quantitative bearing fixing shafts 37 are symmetrically arranged in front and rear directions and are rotatably matched between the quantitative bearing fixing plate 36 and the right side end wall of the working chamber 11, a quantitative bearing plate 38 is fixedly arranged on the quantitative bearing fixing shafts 37, quantitative bearing torsion springs 39 are fixedly arranged between the left side end wall of the quantitative bearing plate 38 and the right side end surface of the quantitative bearing fixing plate 36 and between the right side end surface of the quantitative bearing plate 38 and the right side end wall of the working chamber 11, a second quantitative slippage limiting groove 41 and a first quantitative slippage limiting groove 40 are arranged on the top end surface of the quantitative bearing plate 38, the first quantitative slippage limiting groove 40 is located between the right sections of the first limiting groove 12, and the second quantitative slippage limiting groove 41 is located between the right sections of the second limiting groove 13.

Beneficially, the limiting backflow device comprises a first limiting groove 12 and a second limiting groove 13 which are arranged on the front end wall and the rear end wall of the working chamber 11 in a shape like a Chinese character 'kou', an upper section, a lower section and a right section of the second limiting groove 13 are arranged in one end wall which is far away from the first limiting groove 12 in the front-rear direction, a right section of the second limiting groove 13 is arranged on the left side of the right section of the first limiting groove 12, the second limiting groove 13 extends in the front-rear direction through the first limiting groove 12, the first quantitative limiting plate 18 extends into the second limiting groove 13 and is in sliding fit with the second limiting groove 13, the second quantitative limiting plate 21 extends into the first limiting groove 12 and is in sliding fit with the first limiting groove 12, a right end wall of the second limiting groove 13 is provided with a through groove 42 extending rightward, two first transmission shafts 43 are arranged between the front end wall and the rear end wall of the working chamber 11 in a rotating fit manner, first conveying roller 44 has set firmly on first conveying axle 43, transmission cooperation is equipped with first conveyer belt 45 between first conveyer roller 44, a plurality of first conveying teeth 46 have set firmly on the outside terminal surface of first conveyer belt 45, first conveying teeth 46 are located first spacing groove 12 downside, the running fit is equipped with two second conveying axles 47 that the left and right directions was arranged between the front end wall of working chamber 11 and the rear end lateral wall, second conveying 48 has set firmly on second conveying axle 47, transmission cooperation is equipped with second conveyer belt 49 between the second conveying 48, a plurality of second conveying teeth 50 have set firmly on the outside terminal surface of second conveyer belt 49, second conveying teeth 50 are located the second spacing groove 13 is inboard.

Advantageously, the power transmission device comprises a power motor 51 fixedly arranged on the rear end face of the working box 10, the power motor 51 is in power fit with the first transmission shaft 43 on the right side, the first transmission shaft 43 on the left side extends backwards and is fixedly provided with a first belt wheel 52 on the rear end face, the rear end face of the working box 10 is rotatably provided with a first transmission shaft 53 in fit, the first transmission shaft 53 is fixedly provided with a second belt wheel 54 and a first gear wheel 55, the first gear wheel 55 is arranged on the rear side of the second belt wheel 54, a transmission belt 56 is arranged between the second belt wheel 54 and the first belt wheel 52 in transmission fit, the second transmission shaft 47 on the right side extends backwards and is fixedly provided with a second gear wheel 57 on the rear end face, the second gear wheel 57 is engaged with the first gear wheel 55, a transmission worm 61 extending backwards is fixedly arranged on the rear end face of the second gear wheel 57 on the left side, two fixing plates 58 which are arranged in the vertical direction are fixedly arranged on the end face of the rear side of the working box 10, a second transmission shaft 59 is arranged between the fixing plates 58 in a rotating fit mode, a backward edge is arranged on the end face of the rear side of the working box 10 and reaches an avoidance groove 62 of the working cavity 11, a transmission worm wheel 60 and a friction wheel 63 are fixedly arranged on the second transmission shaft 59, the transmission worm wheel 60 is located on the lower side of the friction wheel 63 and is meshed with the transmission worm 61, and the friction wheel 63 passes through the friction wheel 63 and extends into the working cavity 11.

The applicant will now specifically describe a bucket elevator metering assembly of the present application with reference to figures 1-4 and the description above: in an initial state, the metering block 14 is located on the metering bearing plate 38, the second release limiting plate 64 abuts against the metering block 14, the metering slot 15 is located at the lower side of the release slot 31 and is communicated with the release slot, the first blanking limiting magnet 26 and the second blanking limiting magnet 27 are powered off, the bottom end wall of the metering slot 15 is closed, and the release limiting spring 35 is compressed to store force; when the quantitative feeding is started, the material in the storage tank 30 enters the quantitative trough 15 through the release trough 31, the weight of the quantitative block 14 continuously increases and presses the top end surface of the quantitative bearing plate 38 to cause the quantitative bearing plate 38 to rotate around the quantitative bearing fixing shaft 37, the quantitative bearing torsion spring 39 stores the force, the quantitative block 14 moves downwards to drive the first quantitative limiting plate 18 and the second quantitative limiting plate 21 to move downwards, the first quantitative limiting plate 18 and the second limiting groove 13 are separated from each other and slide into the second quantitative sliding limiting groove 41, the second quantitative limiting plate 21 and the first limiting groove 12 are separated from each other and slide into the first quantitative sliding limiting groove 40, the quantitative block 14 moves downwards along the left end surface of the second release limiting plate 64, and when the quantitative block 14 is separated from the second release limiting plate 64, the release limiting spring 35 is released to drive the first release limiting plate 34 to move right, the first release limiting plate 34 drives the second release limiting plate 64 to move right, the quantitative block 14 moves down along the quantitative bearing plate 38 and is separated from the quantitative bearing plate, the first quantitative limiting plate 18 slides into the second limiting groove 13 again, the second quantitative limiting plate 21 slides into the first limiting groove 12 again, when feeding is started, the second limiting groove 13 moves down to enable the quantitative moving groove 28 to be meshed with the first conveying teeth 46, the power motor 51 is started to drive the first conveying shaft 43 on the right side to rotate, the first conveying shaft 43 on the right side drives the first conveying roller 44 on the right side to rotate, the first conveying roller 44 on the right side drives the first conveying roller 44 on the left side to rotate through the first conveying belt 45, the first transfer roller 44 on the left side rotates the first transfer shaft 43 on the left side, the first conveyor belt 45 drives the first conveying tooth 46 to move, the first conveying tooth 46 drives the quantitative block 14 to move left through the quantitative moving groove 28, the quantitative block 14 drives the first quantitative limit plate 18 to move left along the second limit groove 13, the quantitative block 14 drives the second quantitative limiting plate 21 to extend the first limiting groove 12 to move left, the first quantitative limit plate 18 moves leftwards and slides to the outside through the through groove 42, the quantitative block 14 is abutted with the hopper of the elevator, the first blanking limiting magnet 26 and the second blanking limiting magnet 27 are electrified to drive the blanking plate 24 to rotate around the blanking shaft 23, the blanking torsion spring 25 accumulates force, the hopper drives the quantitative block 14 to move upwards, and the quantitative block 14 drives the second quantitative limiting plate 21 to move upwards along the first limiting groove 12.

When the backflow resetting is started, the first belt wheel 52 drives the second belt wheel 54 to rotate through the transmission belt 56, the second belt wheel 54 drives the first transmission shaft 53 to rotate, the first transmission shaft 53 drives the first gear 55 to rotate, the first gear 55 drives the second gear 57 to rotate, the second gear 57 drives the second transmission shaft 47 positioned on the right side to rotate, the second transmission shaft 47 positioned on the right side drives the second transmission roller 48 positioned on the right side to rotate, the second transmission roller 48 positioned on the right side drives the second transmission roller 48 positioned on the left side to rotate through the second transmission belt 49, the second transmission roller 48 positioned on the left side drives the second transmission shaft 47 positioned on the left side to rotate, the second transmission belt 49 drives the second transmission teeth 50 to move, and the second transmission shaft 47 positioned on the left side drives the transmission worm 61 to rotate, the transmission worm 61 drives the transmission worm wheel 60 to rotate, the transmission worm wheel 60 drives the second transmission shaft 59 to rotate, the second transmission shaft 59 drives the friction wheel 63 to rotate, the friction wheel 63 and the rear end face of the gauge block 14 generate friction to drive the gauge block 14 to move to the right, the gauge block 14 drives the second quantitative limiting plate 21 to move to the right along the first limiting groove 12, the gauge block 14 drives the first quantitative limiting plate 18 to slide to the second limiting groove 13 through the groove 42 positioned at the upper side, the second blanking limiting magnet 27 and the second blanking limiting magnet 27 are powered off, the blanking torsion spring 25 releases to drive the blanking plate 24 to rotate to reset, the bottom section of the quantitative groove 15 is closed, the second transmission tooth 50 slides to the quantitative moving groove 28, and the second transmission tooth 50 drives the gauge block 14 to move to the right through the quantitative moving groove 28, the metering block 14 moves rightwards to push the second release limiting plate 64 to move rightwards, the second release limiting plate 64 moves rightwards to drive the first release limiting plate 34 to move rightwards, the release limiting spring 35 is compressed, the release groove 31 is opened, the second transmission tooth 50 is separated from the metering moving groove 28, and resetting is completed.

The above description is only an embodiment of the invention, but the scope of the invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the invention. Therefore, the protection scope of the invention should be subject to the protection scope defined by the claims.