CN114789825A

CN114789825A - Snail snail-based lifting type screening and filling system

Info

Publication number: CN114789825A
Application number: CN202210460974.2A
Authority: CN
Inventors: 陶建军
Original assignee: Hunan Taowu Food Co ltd
Current assignee: Hunan Taowu Food Co ltd
Priority date: 2022-04-28
Filing date: 2022-04-28
Publication date: 2022-07-26

Abstract

The invention provides a lifting type screening and filling system based on Snail snails, which comprises a lifting hopper and a filling turntable, wherein a lifting conveyer belt is arranged in the lifting hopper, the output end of the lifting conveyer belt extends upwards to the upper part of a storage chamber, a snail feeding groove is arranged at the bottom of the storage chamber, a material distributing frame is arranged below a snail outlet of the snail feeding groove, a Snail separating guide plate is arranged at the top of the material distributing frame, and a Snail separating unit is arranged on the surface of the Snail separating guide plate. Rational in infrastructure after this scheme of adoption, excellent in use effect can realize the intelligent production of snail with the cooperation of external control system.

Description

Snail raising type screening and filling system

Technical Field

The invention relates to the technical field of food processing, in particular to a lifting type screening and filling system for Snail snails.

Background

Snail also known as 'snails' and 'snails', is a river snail or stone snail which is used for being eaten by people, and is a unique traditional flavor food. As a unique food, the Snail snails have a tendency to flow nationwide in recent years, and more people enjoy the food with skill and vital capacity. The Snail needs to carry out technologies such as screening, packing after preparing, and traditional screening, equipment such as packing are constituteed by a plurality of incoherent provisions, and the centre is through multichannel transfer program, and there is inefficiency in this kind of mode, and the transfer in-process easily causes secondary pollution.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a lifting type screening and filling system based on Snail snails, which is reasonable in structure and good in using effect.

In order to realize the purpose, the technical scheme provided by the invention is as follows: the lifting type screening and filling system comprises a lifting hopper and a filling turntable, wherein a lifting conveying belt is arranged in the lifting hopper, the output end of the lifting conveying belt extends upwards to the upper part of a storage chamber, a snail feeding groove is formed in the bottom of the storage chamber, a material distributing frame is arranged below a snail outlet of the snail feeding groove, a snail guide plate is arranged at the top of the material distributing frame and is in a cone shape with a small upper part and a large lower part, and snail distributing units with the quantity larger than 2 groups are arranged on the surface of the snail guide plate; a fixed screw cylinder is arranged on the machine frame below the screw dividing unit, a filling turntable is positioned below an outlet of the fixed screw cylinder and is driven to rotate by a corresponding turntable motor, and bag supporting units with the number larger than 2 groups are uniformly distributed at the edge of the filling turntable; the bag opening device is characterized in that a positioning support arm is installed above the filling turntable, a bag expanding unit is installed at the outer end of the positioning support arm, a synchronous bayonet lock unit is installed in the middle of the positioning support arm, and a bayonet lock groove is formed in the surface of the filling turntable above the bag expanding unit.

The bag supporting unit comprises two limiting support rods, an inner bag clamping plate, a sliding seat, a bag clamping sliding rod and a bag supporting cylinder, wherein the sliding seat is provided with a sliding limiting groove on one side, and the two sliding limiting grooves in the same group are in a splayed shape with a narrow inner part and a wide outer part when viewed from top; a stay bar limiting pin is vertically fixed at the bottom of the filling turntable, and the bottom of the stay bar limiting pin penetrates through the sliding limiting groove downwards and then is connected with a limiting support bar; an inner bag clamping plate is fixed on one side opposite to the outer ends of the two sliding seats, an outer bag clamping plate is arranged on the outer side of the inner bag clamping plate, and a bag clamping area is formed between the outer bag clamping plate and the inner bag clamping plate; the other side of the sliding seat is provided with a sliding groove which penetrates through the inside and the outside, one end of the bag clamping sliding rod is connected with the outer bag clamping plate, and the other end of the bag clamping sliding rod penetrates through the sliding groove and then is connected with the power limiting pin; the bag opening cylinder is arranged at the bottom of the filling turntable, a piston rod of the bag opening cylinder is connected with a power support plate, two ends of the power support plate are provided with strip-shaped power limiting grooves, and power limiting pins are positioned in the power limiting grooves; and a tension spring is connected between the two sliding seats, and two ends of the tension spring are respectively abutted against the corresponding sliding seats.

The synchronous bayonet lock unit comprises a bag expanding guide plate, a reset spring, a limiting bolt, a lifting pin limiting plate and a bolt spring, wherein the bag expanding guide plate is fixed on one side of a positioning support arm in the bag feeding direction, an arc-shaped bag expanding guide groove is formed in the bag expanding guide plate, and the circle center of the bag expanding guide groove and the circle center of the filling turntable are located on the same straight line; a limiting hinge shaft is fixed at the bottom of the inner end of the positioning support arm, a bag expanding linkage arm is movably hinged on the limiting hinge shaft, a reset spring is connected between the bag expanding linkage arm and the middle part of the positioning support arm, one end of the reset spring is abutted against the bag expanding linkage arm, and the other end of the reset spring is abutted against the positioning support arm; a vertically-penetrating bolt hole is formed in the bag expansion linkage arm, the top of the limiting bolt is expanded to form a middle limiting plate, and the height of the middle limiting plate is smaller than the thickness of the positioning support arm; the middle limiting plate top is connected with the lifting pin limiting plate, the lifting pin limiting plate is big-end-up's toper, spacing bolt lower part passes the bolt hole downwards and is connected with bolt limit nut, the cover is equipped with the bolt spring on bolt limit nut and the spacing bolt that expands between the bag interlock arm, bolt spring top is contradicted with expanding bag interlock arm bottom, bolt spring bottom is contradicted with bolt limit nut, the spacing bolt reservation of bolt limit nut below has the insertion section, the insertion section uses with the cooperation of cotter groove, the quantity in cotter groove is the same with the quantity of propping a bag unit.

The spiral separating unit comprises two spiral separating guide plates and a screening rod, wherein a spiral separating guide channel is reserved between every two spiral separating guide plates, a speed reducing resistance plate is arranged on the drive spiral guide plates in the spiral separating guide channels, the speed reducing resistance plate is triangular or pointed cone-shaped, and the tip of the speed reducing resistance plate is opposite to the center of the drive spiral guide plates; divide to be fixed with the screening pole on the snail guide plate at snail guide passageway exit, the screening pole is many, wherein one end is connected with the snail guide plate, the other end is unsettled, form snail screening passageway between the adjacent snail guide plate, the snail screening passageway overlooks and is "eight" font, its less one end is located the snail guide plate direction, it is equipped with fixed barrel and snail branch guide below to drive snail screening passageway, it is located the less one end below of snail screening passageway to drive snail branch guide.

The bag expanding unit comprises a flaring cylinder and flaring guide plates, wherein the flaring cylinder is a bidirectional cylinder, the length direction of the flaring cylinder is consistent with that of the bag expanding linkage arm, flaring connecting rods are hinged to piston rods at two ends of the flaring cylinder respectively and are L-shaped, the top of a vertical arm of the flaring connecting rod is connected with the piston rod of the flaring cylinder, the middle of the vertical arm is hinged to a fixing pin at the bottom of the bag expanding linkage arm, a cross arm at the bottom of the flaring connecting rod is right opposite to the filling head direction, the flaring guide plates are mounted at the end parts of the cross arm, the lower parts of the two flaring guide plates are relatively close to each other and then extend downwards to form bag expanding ends, the bag expanding ends are arc-shaped, and the two arc-shaped inner arc surfaces are opposite.

After the scheme is adopted, Snail raw materials are poured into an elevating hopper and lifted into a storage chamber through an elevating conveyor belt, the Snail is collected above a snail feeding groove under the guiding action of a snail collecting surface, the Snail is conveyed backwards under the driving action of a feed screw and falls onto a Snail guide plate, the conveying speed of the feed screw can be controlled according to the subsequent process requirements, the materials are divided through the snail guide plate under the guiding action of the Snail guide plate, the materials are screened through a screening rod after being divided, the screened small particle Snail guide hoppers are taken out through corresponding fixing screw cylinders and the Snail guide hoppers after being screened, and when the external bag feeding machine feeds the packaging bag between two sets of outer bag clamping plates and inner bag clamping plates, the edges of the packaging bag are respectively located in corresponding bag clamping areas; prop the bag unit and press from both sides the wrapping bag tightly, the filling carousel expands the sack through the flaring unit at the pivoted in-process, and the well prepared snail is sent to fixed barrel by external conveyer pipe in, through fixed barrel direction back down pass the filling barrel and get into the wrapping bag and accomplish the filling, rational in infrastructure after this scheme of adoption, excellent in use effect can realize the intelligent production of snail with the cooperation of external control system.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic structural view of the bag opening unit of the present invention.

Fig. 3 is a schematic structural diagram of the filling turntable of the invention.

FIG. 4 is a schematic view of the structure of the synchronizing bayonet unit of the present invention.

Fig. 5 is a schematic structural diagram of the bag expanding unit of the present invention.

Detailed Description

The invention will be further described with reference to all the drawings, in which preferred embodiments of the invention are: referring to fig. 1 to 5, the lifting type screening and filling system for snail-based snails in this embodiment includes a lifting hopper 109 and a filling turntable 206, wherein a lifting conveyor belt 110 is disposed in the lifting hopper 109, an output end of the lifting conveyor belt 110 extends upward above a storage chamber 111, a snail feeding trough 101 is disposed at the bottom of the storage chamber 111, a snail distributing frame 103 is mounted below a snail outlet of the snail feeding trough 101, a snail guide plate 104 is mounted at the top of the snail distributing frame 103, the snail guide plate 104 is in a shape of a cone with a small upper part and a large lower part, and snail distributing units with a number greater than 2 are disposed on the surface of the snail guide plate 104; a fixed screw cylinder 201 is installed on the machine frame below the screw dividing unit, a filling turntable 206 is positioned below an outlet of the fixed screw cylinder 201, the filling turntable 206 is driven to rotate by a corresponding turntable motor, and bag supporting units with the number larger than 2 are uniformly distributed at the edge of the filling turntable 206; a positioning support arm 301 is arranged above the filling turntable 206, a bag expanding unit is arranged at the outer end of the positioning support arm 301, a synchronous bayonet unit is arranged in the middle of the positioning support arm 301, and a bayonet groove 307 is arranged on the surface of the filling turntable 206 above the bag expanding unit. The bottom of the fixed screw barrel 201 gradually shrinks to form a transition screw barrel 202, a filling screw barrel 203 is movably sleeved outside the transition screw barrel 202, a filling guide cylinder 205 is installed on the rack 204 along the vertical direction, a piston rod of the filling guide cylinder 205 is downwards connected with one end of a screw barrel support plate, and the other end of the screw barrel support plate is connected with the upper part of the outer barrel wall of the filling screw barrel 203; the lower part of the inner cavity of the storage chamber 111 is gradually contracted towards the middle to form a screw guide surface, one end of the screw conveying groove 101 extends to the lower part of the screw guide surface, the bottom of the screw guide surface is connected with the corresponding side wall of the screw conveying groove 101, the other end of the screw conveying groove 101 penetrates through the storage chamber 111 to form a screw outlet, a material conveying screw rod 102 is installed in the screw conveying groove 101, and the material conveying screw rod 102 is driven by a corresponding motor to operate.

The bag supporting unit comprises two limiting support rods 207, an inner bag clamping plate 208, a sliding seat 209, bag clamping sliding rods 212 and a bag supporting cylinder 215, wherein the number of the sliding seats 209 is two, one side of the sliding seat 209 is provided with a sliding limiting groove 211, and the two sliding limiting grooves 211 of the same group are in a splayed shape with a narrow inner part and a wide outer part when viewed from top; a stay bar limiting pin 210 is vertically fixed at the bottom of the filling turntable 206, and the bottom of the stay bar limiting pin 210 downwards penetrates through the sliding limiting groove 211 and then is connected with a limiting supporting bar 207; an inner bag clamping plate 208 is fixed on one side opposite to the outer ends of the two sliding seats 209, an outer bag clamping plate 213 is arranged on the outer side of the inner bag clamping plate 208, and a bag clamping area is formed between the outer bag clamping plate 213 and the inner bag clamping plate 208; the other side of the sliding seat 209 is provided with a sliding groove which penetrates through the inside and the outside, one end of the bag clamping sliding rod 212 is connected with an outer bag clamping plate 213, and the other end of the bag clamping sliding rod passes through the sliding groove and then is connected with a power limiting pin 214; the bag opening cylinder 215 is arranged at the bottom of the filling turntable 206, a piston rod of the bag opening cylinder 215 is connected with a power support plate 216, two ends of the power support plate 216 are provided with strip-shaped power limiting grooves 217, and the power limiting pins 214 are positioned in the power limiting grooves 217; a tension spring 218 is connected between the two sliding seats 209, and two ends of the tension spring 218 respectively abut against the corresponding sliding seats 209.

The synchronous bayonet unit comprises a bag expanding guide plate 302, a reset spring, a limiting bolt 309, a lifting pin limiting plate 308 and a bolt spring 311, wherein the bag expanding guide plate 302 is fixed on one side of a positioning support arm 301 in the bag inlet direction, an arc-shaped bag expanding guide groove 303 is arranged on the bag expanding guide plate 302, and the circle center of the bag expanding guide groove 303 and the circle center of the filling turntable 206 are positioned on the same straight line; a limiting hinge shaft 304 is fixed at the bottom of the inner end of the positioning support arm 301, a bag expanding linkage arm 305 is movably hinged on the limiting hinge shaft 304, a reset spring is connected between the bag expanding linkage arm 305 and the middle part of the positioning support arm 301, one end of the reset spring is abutted against the bag expanding linkage arm 305, and the other end of the reset spring is abutted against the positioning support arm 301; a plug pin hole penetrating up and down is formed in the bag expansion linkage arm 305, the top of the limiting plug pin 309 is expanded to form a middle limiting plate 310, and the height of the middle limiting plate 310 is smaller than the thickness of the positioning support arm 301; the top of the middle limiting plate 310 is connected with a lifting pin limiting plate 308, the lifting pin limiting plate 308 is in a conical shape with a large top and a small bottom, the lower portion of a limiting bolt 309 downwards penetrates through a bolt hole to be connected with a bolt limiting nut, a bolt spring 311 is sleeved on the limiting bolt 309 between the bolt limiting nut and the bag expansion linkage arm 305, the top of the bolt spring 311 is abutted against the bottom of the bag expansion linkage arm 305, the bottom of the bolt spring 311 is abutted against the bolt limiting nut, an insertion section is reserved on the limiting bolt 309 below the bolt limiting nut and is matched with a clamping pin groove 307, and the number of the clamping pin grooves 307 is the same as the number of the bag expansion units.

The spiral separating unit comprises two spiral separating guide plates 105 and a screening rod 107, wherein a spiral separating guide channel is reserved between every two spiral separating guide plates 105, a speed reducing resistance plate 106 is arranged on a drive spiral guide plate 104 in the spiral separating guide channel, the speed reducing resistance plate 106 is triangular or pointed cone-shaped, and the tip end of the speed reducing resistance plate is opposite to the center of the drive spiral guide plate 104; be fixed with screening rod 107 on the Snail guide plate 104 at branch snail guide channel outlet, screening rod 107 is many, wherein one end is connected with Snail guide plate 104, the other end is unsettled, the Snail screening channel is formed between adjacent Snail guide plates 104, the Snail screening channel overlooks and is "eight" font, its less one end is located Snail guide plate 104 direction, Snail screening channel below is equipped with fixed snail 201 and Snail screening hopper 108, Snail screening hopper 108 is located Snail screening channel less one end below.

The bag expanding unit comprises a flaring cylinder 319 and flaring guide plates 320, wherein the flaring cylinder 319 is a bidirectional cylinder, the length direction of the flaring cylinder 319 is consistent with that of the bag expanding linkage arm 305, flaring connecting rods 318 are hinged on piston rods at two ends of the flaring cylinder 319 respectively, the flaring connecting rods 318 are L-shaped, the top of each vertical arm is connected with the piston rod of the flaring cylinder 319, the middle of each vertical arm is hinged with a fixing pin at the bottom of the bag expanding linkage arm 305, a cross arm at the bottom of each flaring connecting rod 318 is just opposite to the filling head direction, the flaring guide plates 320 are installed at the end parts of the cross arm, the lower parts of the two flaring guide plates 320 relatively approach to each other and then extend downwards to form bag expanding ends, the bag expanding ends are arc-shaped, and the two arc-shaped inner arc surfaces are opposite.

After the scheme is adopted, the snail distributing guide channel is in a trapezoid shape with a large upper part and a small lower part, and the smaller end of the snail guide channel is positioned at the edge of the snail guide plate; the snail raw materials are poured into an elevating hopper, are elevated into a storage chamber through an elevating conveyor belt, and are collected above a snail feeding groove under the guiding action of a snail collecting surface;

the feed screw is driven by a corresponding motor to rotate, the rotating speed of the feed screw can be controlled according to the subsequent process requirements, so that the conveying speed of the Snail is changed, and the Snail is conveyed backwards under the driving action of the feed screw and falls onto the Snail guide plate;

under the action of the inclined surface of the snail guide plate and the guiding action of the snail dividing guide plate, the snails slide downwards into corresponding snail dividing guide channels, and continue descending in the snail dividing guide channels, and the speed is reduced through the speed reduction resistance plate in the descending process, so that the over-high speed transportation is prevented;

the Snail is guided by the snail separation guide channel to be rolled into a Snail screening channel formed by a screening rod, and is screened from small to large through the Snail screening channel, smaller Snail falls into a Snail separation guide hopper from the front end of the Snail screening channel, the Snail separation guide hopper takes out screened small particle Snail, and larger Snail falls into a fixing barrel from the rear end of the Snail screening channel;

the filling turntable is driven by a corresponding turntable motor to rotate, a bag opening air cylinder piston rod in an original state extends out, a tension spring extends, the two sliding seats are in the farthest state, and a power limiting pin is positioned at the narrow end of the sliding limiting groove; when the outer bag feeding machine feeds the packaging bag between the two groups of outer bag clamping plates and inner bag clamping plates, two side edges of the packaging bag are respectively positioned in corresponding bag clamping areas;

the piston of the bag supporting cylinder stretches and contracts to drive the power support plate to move backwards, the power support plate synchronously pulls the bag clamping slide bar to move backwards through the power limiting pin while moving, the bag clamping slide bar drives the outer bag clamping plate to move backwards and reduce a bag clamping area when moving, and two sides of the packaging bag are clamped through the outer bag clamping plate and the inner bag clamping plate;

the piston rod of the bag supporting cylinder continuously contracts to drive the power support plate, the outer bag clamping plate continuously moves backwards after clamping the bag side when moving backwards, the outer bag clamping plate is abutted against the inner bag clamping plate and synchronously pushes the inner bag clamping plate to move backwards, the inner bag clamping plate drives the sliding seats to move backwards while moving backwards, and the two sliding seats are relatively close to the tension spring to be stressed and compressed while moving backwards under the action of the sliding limiting groove and the supporting rod limiting pin when moving backwards, so that the bag opening of the packaging bag is opened; an air nozzle is arranged above the bag opening of the packaging bag according to the requirement and is blown to the packaging bag, so that the bag opening can be quickly loosened and slit, and the bag expanding end of the expanding guide plate can be conveniently inserted;

when the bag is moved to the position under the limit bolt, the limit bolt inserts the inserting section into the clamping pin groove under the abutting action of the bolt spring, so that the bag expanding linkage arm synchronously moves to rotate at the circle center of the filling turntable, and the reset spring is stressed and compressed at the same time); the piston rod of the flaring cylinder in the original state extends out, bag expanding ends of the two flaring guide plates are close to each other, the bottom of the closed bag expanding end is higher than the bag opening of the packaging bag, and the bag expanding end is positioned right above the bag opening;

the filling turntable continues to rotate, in the rotating process, a piston rod of the flaring cylinder starts to contract to drive the upper parts of the flaring connecting rods to approach relatively, the lower parts of the flaring connecting rods walk towards the lower parts of two sides under the limiting action of the fixing pins, and the flaring guide plates are driven to synchronously move through the cross arm while walking;

the bag expanding end of the expanding guide plate moves downwards to be in contact with the inner walls of the two sides of the bag opening of the packaging bag, the piston rod of the expanding cylinder continues to contract, the two sides of the bag opening are expanded through the bag expanding end of the expanding guide plate, and the bag opening of the packaging bag is made to be square under the cooperation of the manipulator;

the filling turntable continues to rotate to enable the packaging bags to move to the positions below the filling heads, and the Snail snails are filled into the packaging bags through the filling heads; after filling, the filling turntable continues to rotate, and a piston rod of the flaring cylinder extends out, so that the bag expanding end of the flaring guide plate is relatively closed and reset;

when the filling turntable continues to rotate and the bag expanding linkage arm moves to the positioning support arm, the lifting pin limiting plate is firstly contacted with the bag expanding linkage arm, under the conical surface action of the lifting pin limiting plate and the driving force of the filling turntable, the lifting pin limiting plate moves upwards to drive the limiting bolt to move upwards, the bolt spring is stressed and compressed), so that the inserting section exits from the bolt clamping groove, the ball can be arranged at the bottom of the inserting section as required, the inserting section can conveniently move on the filling turntable, and the friction force is reduced);

the bag expanding linkage arm does not move along with the filling turntable any more, and simultaneously, under the tension action of a reset spring, the movable end of the bag expanding linkage arm is provided with one end of a limiting bolt) to reset for the next flaring operation; the automatic filling production of Snail snails can be realized through external system control.

The above-mentioned embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereby, and all changes made in the shape and principle of the present invention should be covered within the scope of the present invention.

Claims

1. Lifting type screening filling system based on snail is used, it is including lifting bucket (109), filling carousel (206), its characterized in that: a lifting conveying belt (110) is arranged in the lifting hopper (109), the output end of the lifting conveying belt (110) extends upwards to the upper side of the storage chamber (111), a screw feeding groove (101) is formed in the bottom of the storage chamber (111), a material distributing frame (103) is installed below a screw outlet of the screw feeding groove (101), a drive spiral guide plate (104) is installed at the top of the material distributing frame (103), the drive spiral guide plate (104) is in a cone shape with a small upper part and a large lower part, and a number of drive spiral units larger than 2 are arranged on the surface of the drive spiral guide plate (104); a fixed screw cylinder (201) is mounted on the rack below the screw dividing unit, a filling turntable (206) is positioned below an outlet of the fixed screw cylinder (201), the filling turntable (206) is driven by a corresponding turntable motor to rotate, and bag supporting units with the number larger than 2 groups are uniformly distributed at the edge of the filling turntable (206); a positioning support arm (301) is arranged above the filling turntable (206), a bag expanding unit is arranged at the outer end of the positioning support arm (301), a synchronous bayonet unit is arranged in the middle of the positioning support arm (301), and a bayonet groove (307) is arranged on the surface of the filling turntable (206) above the bag expanding unit.

2. The drive snail-based lifting screening and filling system according to claim 1, wherein: the bag supporting unit comprises two limiting support rods (207), an inner bag clamping plate (208), two sliding seats (209), bag clamping sliding rods (212) and a bag supporting cylinder (215), wherein one side of each sliding seat (209) is provided with a sliding limiting groove (211), and the two sliding limiting grooves (211) in the same group are in a splayed shape with a narrow inner part and a wide outer part when viewed from top; a stay bar limiting pin (210) is vertically fixed at the bottom of the filling turntable (206), and the bottom of the stay bar limiting pin (210) downwards penetrates through the sliding limiting groove (211) and then is connected with a limiting supporting bar (207); an inner bag clamping plate (208) is fixed on one side opposite to the outer ends of the two sliding seats (209), an outer bag clamping plate (213) is arranged on the outer side of the inner bag clamping plate (208), and a bag clamping area is formed between the outer bag clamping plate (213) and the inner bag clamping plate (208); the other side of the sliding seat (209) is provided with a sliding groove which penetrates through the inside and the outside, one end of the bag clamping sliding rod (212) is connected with the outer bag clamping plate (213), and the other end of the bag clamping sliding rod penetrates through the sliding groove and then is connected with the power limiting pin (214); the bag opening cylinder (215) is arranged at the bottom of the filling turntable (206), a piston rod of the bag opening cylinder (215) is connected with a power support plate (216), strip-shaped power limiting grooves (217) are formed in two ends of the power support plate (216), and the power limiting pin (214) is located in the power limiting grooves (217); a tension spring (218) is connected between the two sliding seats (209), and two ends of the tension spring (218) are respectively butted with the corresponding sliding seats (209).

3. The drive snail-based lifting screening and filling system according to claim 1, wherein: the synchronous bayonet unit comprises a bag expanding guide plate (302), a reset spring, a limiting bolt (309), a lifting pin limiting plate (308) and a bolt spring (311), wherein the bag expanding guide plate (302) is fixed on one side of a positioning support arm (301) in the bag feeding direction, an arc-shaped bag expanding guide groove (303) is formed in the bag expanding guide plate (302), and the circle center of the bag expanding guide groove (303) and the circle center of the filling turntable (206) are positioned on the same straight line; a limiting hinge shaft (304) is fixed at the bottom of the inner end of the positioning support arm (301), a bag expanding linkage arm (305) is movably hinged on the limiting hinge shaft (304), a reset spring is connected between the bag expanding linkage arm (305) and the middle part of the positioning support arm (301), one end of the reset spring is abutted against the bag expanding linkage arm (305), and the other end of the reset spring is abutted against the positioning support arm (301); a plug pin hole which penetrates through the bag expanding linkage arm (305) up and down is formed in the bag expanding linkage arm, the top of the limiting plug pin (309) is expanded to form a middle limiting plate (310), and the height of the middle limiting plate (310) is smaller than the thickness of the positioning support arm (301); middle limiting plate (310) top is connected with lifting pin limiting plate (308), lifting pin limiting plate (308) are big-end-up's toper, spacing bolt (309) lower part passes the bolt hole downwards and is connected with bolt limit nut, bolt limit nut and expand spacing bolt (309) between bag interlock arm (305) on the cover be equipped with bolt spring (311), bolt spring (311) top is contradicted with expanding bag interlock arm (305) bottom, bolt spring (311) bottom is contradicted with bolt limit nut, spacing bolt (309) of bolt limit nut below is reserved has the insertion section, the insertion section uses with the cooperation of cotter way (307), the quantity of cotter way (307) is the same with the quantity that props the bag unit.

4. The drive snail-based lifting type screening and filling system according to claim 1, wherein: the snail dividing unit comprises two snail dividing guide plates (105) and a screening rod (107), wherein a snail dividing guide plate (105) is reserved between every two adjacent snail dividing guide plates (105), a snail guide plate (104) in each snail dividing guide channel is provided with a speed reduction resistance plate (106), each speed reduction resistance plate (106) is triangular or pointed cone-shaped, and the tip of each speed reduction resistance plate is opposite to the center of the snail guide plate (104); be fixed with screening pole (107) on drive snail guide plate (104) of branch spiral shell guide passageway exit, screening pole (107) are many, wherein one end is connected with drive snail guide plate (104), the other end is unsettled, it forms drive snail screening passageway to hang between adjacent drive snail guide plate (104), drive snail screening passageway overlooks and is "eight" font, its less one end is located drive snail guide plate (104) direction, drive snail screening passageway below is equipped with fixed barrel (201) and drive snail guide (108), drive snail guide (108) are located the less one end below of drive snail screening passageway.

5. The drive snail-based lifting type screening and filling system according to claim 1, wherein: the bag expanding unit comprises a flaring cylinder (319) and flaring guide plates (320), wherein the flaring cylinder (319) is a bidirectional cylinder, the length direction of the flaring cylinder (319) is consistent with that of the bag expanding linkage arm (305), flaring connecting rods (318) are hinged on piston rods at two ends of the flaring cylinder (319), the flaring connecting rods (318) are L-shaped, the top of a vertical arm of the flaring cylinder (319) is connected with the piston rods of the flaring cylinder (319), the middle of the vertical arm is hinged with a fixing pin at the bottom of the bag expanding linkage arm (305), a cross arm at the bottom of the flaring connecting rods (318) is opposite to the filling head direction, the flaring guide plates (320) are installed at the end parts of the cross arm, the lower parts of the two flaring guide plates (320) are relatively close to each other and then extend downwards to form a bag expanding end, the bag expanding end is arc-shaped, and the two arc-shaped inner arc surfaces are opposite.