CN220130486U - Front-back type alternate bagging device - Google Patents

Abstract

The utility model discloses a front-back type alternate bag feeding device, which relates to the technical field of bag feeding devices and aims to solve the problems that the occupied area of a bag warehouse which is originally arranged left and right is large, workers need to move between two bag warehouses when placing packaging bags, and when a packaging line is long, the time and the labor are wasted when placing the packaging bags.

Description

Front-back type alternate bagging device

Technical Field

The utility model relates to the technical field of bagging devices, in particular to a front-back type alternating bagging device.

Background

The last link of production line is the packing, packs into the wrapping bag in batches through putting in order the product, and the wrapping bag just needs to carry out orderly material loading work this moment, and the bagging apparatus just is the equipment of carrying the material loading with the wrapping bag, and it has efficient, stable good characteristic.

The Chinese patent publication No. CN215707516U, the authorized bulletin day is 2022, 2 and 1, the open bag feeding machine with high bag feeding speed comprises a frame, a first bag warehouse and a second bag warehouse which are arranged on two sides of the frame, a filling mechanism is arranged at one end of the frame, and a bag taking mechanism, a shaping positioning mechanism, an open bag mechanism and a bag feeding mechanism are arranged in the frame. The bag feeding device has the advantages that the structure is simple, the universality is high, the first bag warehouse and the second bag warehouse are recycled or alternately used, the link of the bag moving action in the idle running process is saved, and the bag feeding speed is improved.

The prior art solutions described above have the following drawbacks: the bag warehouse is arranged on the left side and the right side of the frame, the bag moving action idle running link is saved through cyclic utilization or alternate utilization, the bag feeding speed is improved, the occupied area of the bag warehouse which is originally arranged left and right is large, a worker needs to walk between the two bag warehouses to place a packaging bag, and when the packaging line is long, the time and the labor are wasted in placing the packaging bag, so that a front-back alternate bag feeding device is provided, and the problem in the above is solved.

Disclosure of Invention

The utility model aims to provide a front-back type alternating bag feeding device, which aims to solve the problems that in the prior art, the occupied area of a bag warehouse arranged left and right is large, a worker needs to walk between two bag warehouses to place a packaging bag, and when a packaging line is long, the time and the labor are wasted in placing the packaging bag.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a bagging apparatus in turn, includes bagging apparatus body, the surface all around of bagging apparatus body is provided with the shell body, one side fixed mounting of shell body top has the backup pad, the front and back bilateral symmetry of going up the backup pad is provided with the limiting plate, the bottom surface of bagging apparatus body is provided with the bottom plate, the front and back bilateral symmetry of bottom plate top is provided with translation mechanism spacing, one side translation mechanism spacing's top slides and is provided with first translation mechanism, the opposite side translation mechanism spacing's top slides and is provided with second translation mechanism, first translation mechanism and second translation mechanism's upper end all is provided with the guide arm, first translation mechanism and second translation mechanism's lower extreme is provided with translation mechanism bottom plate, translation mechanism bottom plate's top is provided with electronic telescopic cylinder and translation mechanism spacing, translation mechanism spacing's top is provided with the dwang, one side of dwang is provided with the guide bar fixing base, and guide bar fixing base and the lower extreme fixed connection of guide arm, the rear end of dwang and the upper end of electric actuator are connected with the shell body, the intermediate position of expansion cylinder is provided with the limiting plate.

Preferably, a first guide rod sliding groove is formed in the middle position of the upper supporting plate, one side guide rod of the second translation mechanism is located below the first guide rod sliding groove, limiting plate fixed block sliding groove groups are symmetrically formed in two sides of the first guide rod sliding groove, and four limiting plate fixed block sliding grooves are formed in each limiting plate fixed block sliding groove group at equal intervals.

Preferably, the electric telescopic cylinder is located one side of the translation mechanism limiting frame, the translation mechanism limiting frame is fixedly connected with the translation mechanism bottom plate, the lower end of the electric telescopic cylinder is rotationally connected with the translation mechanism bottom plate through a rotating shaft, the upper end of one side of the guide rod fixing seat is fixedly connected with the rotating rod, and the lower end of one side of the guide rod fixing seat is rotationally connected with the upper end of the translation mechanism limiting frame through the rotating shaft.

Preferably, the intermediate position department of bottom plate top one side is provided with driven pulley, and the intermediate position department of bottom plate top opposite side is provided with the driving pulley, the below of driving pulley is provided with translation driving motor, and translation driving motor and bottom plate fixed connection, translation driving motor's output and driving pulley pass through key transmission and are connected, the transmission is provided with drive belt between driving pulley and the driven pulley, the outside in drive belt is fixed to the suit of one end of translation mechanism bottom plate.

Preferably, the intermediate position department of locating support is provided with the actuating lever, the below of actuating lever is provided with lift driving motor, and lift driving motor and the inner wall fixed connection of shell body, the output of lift driving motor passes through the coupling joint with the lower extreme of actuating lever, the one end that the lift plate is close to the locating support is provided with lift plate center seat, and the central point department and the actuating lever threaded connection of lift plate center seat one side, the both ends symmetry of lift plate center seat one side is provided with lift plate sliding seat, and lift plate sliding seat and locating support sliding connection, the intermediate position department of lift plate upper end is provided with the second guide bar spout, and the upper end of opposite side guide bar passes the second guide bar spout and extends to the top of second guide bar spout, limit bar groove set has been seted up to the bilateral symmetry of second guide bar spout, and every group limit bar groove set equidistance is provided with three limit bar groove.

Preferably, the front end of shell body one side is provided with the hand wheel, the inboard symmetry at both ends is provided with the fixed plate around the shell body, two be provided with first threaded rod and first locating lever between the fixed plate one end, and first threaded rod is located the below of first locating lever, first locating lever and fixed plate fixed connection, and first threaded rod rotates with the fixed plate to be connected, the one end of first threaded rod runs through fixed plate and shell body and with hand wheel fixed connection.

Preferably, two be provided with second threaded rod and second locating lever between the fixed plate other end, and the second threaded rod is located the below of second locating lever, second locating lever and fixed plate fixed connection, and second threaded rod and fixed plate rotate to be connected, the outside at first threaded rod and first locating lever both ends and the outside symmetry cover at second threaded rod and second locating lever both ends are equipped with the sliding plate, and the front side is two the top and the rear side of sliding plate are two the top of sliding plate all is provided with the gag lever post fixed plate, the top equidistance of gag lever post fixed plate one side is fixed and is provided with four gag lever post fixed blocks, and gag lever post fixed block and limiting plate fixed connection, the upper end of limiting plate fixed block pass limiting plate fixed block spout and with limiting plate fixed block spout sliding connection, the top equidistance of gag lever post fixed plate opposite side is provided with three gag lever posts, and the upper end of gag lever post passes the gag lever post groove and with limiting lever post groove sliding connection.

Preferably, one end of the second threaded rod penetrates through the fixing plate and is connected with the first driving belt pulley through a key, one side of the second threaded rod is provided with a threaded rod motor which is fixedly connected with the fixing plate, the output end of the threaded rod motor penetrates through and extends to the outside of the fixing plate and is connected with the second driving belt pulley through a key, the second driving belt pulley is connected with the first driving belt pulley through belt driving, the front side of the second driving belt pulley is provided with a gear, the gear is coaxially connected with the second driving belt pulley, one side of the gear is provided with a turn number sensor, the turn number sensor is fixedly connected with the fixing plate, the outside of the other side of the first threaded rod is fixedly sleeved with a fourth driving belt pulley, the outside of the second threaded rod is fixedly sleeved with a third driving belt pulley, and the third driving belt pulley is connected with the fourth driving belt pulley through belt driving

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the first translation mechanism and the second translation mechanism are arranged, the front and back sliding of the packaging bag can be realized under the drive of the transmission belt and the limit of the limit strip of the translation mechanism, the guide rods at the upper ends of the first translation mechanism and the second translation mechanism can guide and feed the packaging bag, the guide rods correspond to the reserved holes at the front ends of the packaging bag, so that the packaging bag is guided to move forwards when the guide rods move forwards, and the second translation mechanism moves backwards due to the transmission of the belt when the first translation mechanism moves forwards, so that the two mechanisms are alternately used, the function of alternately feeding the packaging bag on the same side is realized, the problem that the occupied area of the bag warehouse arranged at left and right originally is large, and workers need to walk between the two bag warehouses is solved, and when a packaging line is longer, the time and labor are wasted when the packaging bag is placed.

2. According to the utility model, through arranging the corresponding first threaded rod, the first positioning rod, the second threaded rod and the second positioning rod, the second transmission belt pulley and the gear are driven to synchronously rotate through the threaded rod motor, the number of rotation turns of the gear are monitored through the turn number sensor, the second transmission belt pulley drives the first transmission belt pulley to rotate through the belt, the first transmission belt pulley drives the second threaded rod to rotate, the third transmission belt pulley synchronously rotates while the second threaded rod rotates, the third transmission belt pulley drives the fourth transmission belt pulley to rotate through the belt, the fourth transmission belt pulley drives the first threaded rod to rotate, and simultaneously, the two limiting rod fixing plates are synchronously moved through sliding connection and limiting of the first positioning rod and the sliding plate in cooperation with the second threaded rod and the second positioning rod, so that the positions of the limiting rods and the limiting plate fixing blocks on the two limiting rod fixing plates are adjusted, and the width of bags with different sizes is adjusted.

Drawings

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a second perspective view of the present utility model;

FIG. 3 is a perspective view of the connection of the lift plate, stop, drive rod and lift drive motor of the present utility model;

FIG. 4 is a perspective view showing the connection relationship between a first translation mechanism, a second translation mechanism, a limit bar of the translation mechanism and a driving belt;

FIG. 5 is a top view of the first translation mechanism, the second translation mechanism, the translation mechanism stop bars and the drive belt of the present utility model;

FIG. 6 is a perspective view showing the connection relationship among a first threaded rod, a first positioning rod, a second threaded rod, a second positioning rod, a sliding plate, a limiting plate fixing block and a limiting rod;

fig. 7 is an enlarged view of a portion of the area a of fig. 6 in accordance with the present utility model.

In the figure: 1. a bagging device body; 2. an outer housing; 3. an upper support plate; 4. a limiting plate; 5. a limiting plate fixing block; 6. a hand wheel; 7. limiting plate fixed block chute; 8. a first guide bar chute; 9. a lifting plate; 10. a guide rod; 11. a limit rod; 12. a limiting frame; 13. a driving rod; 14. a limit rod groove; 15. a second guide bar chute; 16. a lifting driving motor; 17. a bottom plate; 18. a translation mechanism limit bar; 19. a drive belt; 20. a driven pulley; 21. a translation mechanism bottom plate; 22. an electric telescopic cylinder; 23. a translation mechanism limiting frame; 24. a rotating lever; 25. a guide rod fixing seat; 26. a translation driving motor; 27. a driving pulley; 28. a first translation mechanism; 29. a second translation mechanism; 30. a fixing plate; 31. a first threaded rod; 32. a first positioning rod; 33. a second threaded rod; 34. a second positioning rod; 35. a sliding plate; 36. a stop lever fixing plate; 37. a first drive pulley; 38. a second drive pulley; 39. a gear; 40. a turn number sensor; 41. a threaded rod motor; 42. a third drive pulley; 43. a fourth drive pulley; 91. a lifting plate center seat; 92. and a lifting plate sliding seat.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-7, an embodiment of the present utility model is provided: the utility model provides a bagging apparatus in turn, including bagging apparatus body 1, the surface all around of bagging apparatus body 1 is provided with shell body 2, one side fixed mounting above shell body 2 has upper supporting plate 3, upper supporting plate 3's front and back bilateral symmetry is provided with limiting plate 4, the bottom surface of bagging apparatus body 1 is provided with bottom plate 17, the front and back bilateral symmetry of bottom plate 17 top is provided with translation mechanism spacing 18, the top of one side translation mechanism spacing 18 slides and is provided with first translation mechanism 28, the top of opposite side translation mechanism spacing 18 slides and is provided with second translation mechanism 29, the upper end of first translation mechanism 28 and second translation mechanism 29 all is provided with guiding rod 10, the lower extreme of first translation mechanism 28 and second translation mechanism 29 is provided with translation mechanism bottom plate 21, the top of translation mechanism bottom plate 21 is provided with electric telescopic jar 22 and translation mechanism spacing 23, the top of translation mechanism spacing 23 is provided with dwang 24, one side of dwang 24 is provided with guiding rod fixing base 25, and guiding rod fixing base 25 and the lower extreme fixed connection of 10, the rear end of guide rod 24 and the back end of electric telescopic link 2 are provided with the limiting plate 12, the intermediate position of the fixed position of the back side of the shell body is provided with the locating plate 12.

Referring to fig. 1-2 and fig. 4-5, a first guide rod chute 8 is arranged at the middle position of the upper support plate 3, one side guide rod 10 of the second translation mechanism 29 is positioned below the first guide rod chute 8, two sides of the first guide rod chute 8 are symmetrically provided with limiting plate fixed block chute groups, each group of limiting plate fixed block chute groups are equidistantly provided with four limiting plate fixed block chutes 7, an electric telescopic cylinder 22 is positioned at one side of the translation mechanism limiting frame 23, the translation mechanism limiting frame 23 is fixedly connected with a translation mechanism bottom plate 21, the lower end of the electric telescopic cylinder 22 is rotatably connected with the translation mechanism bottom plate 21 through a rotating shaft, the upper end of one side of the guide rod fixing seat 25 is fixedly connected with a rotating rod 24, the lower end of one side of the guide rod fixing seat 25 is rotatably connected with the upper end of the translation mechanism limiting frame 23 through the rotating shaft, a driven pulley 20 is arranged at the middle position of one side of the bottom plate 17, a driving pulley 27 is arranged at the middle position of the other side of the upper side of the bottom plate 17, a translation driving pulley 26 is arranged below the driving pulley 27, the translation driving pulley 26 is fixedly connected with the bottom plate 17, the translation driving pulley 26 is fixedly connected with the output pulley 26 of the bottom plate 17 through a driving pulley 27, the driving pulley 19 is fixedly connected with the driving pulley 19, and the driving pulley 19 is fixedly connected with the driving pulley 19 through a driving pulley 19.

Referring to fig. 3, a driving rod 13 is disposed at a middle position of the limiting frame 12, a lifting driving motor 16 is disposed below the driving rod 13, the lifting driving motor 16 is fixedly connected with an inner wall of the outer casing 2, an output end of the lifting driving motor 16 is connected with a lower end of the driving rod 13 through a coupling, one end of the lifting plate 9, which is close to the limiting frame 12, is provided with a lifting plate center seat 91, a center position of one side of the lifting plate center seat 91 is in threaded connection with the driving rod 13, two ends of one side of the lifting plate center seat 91 are symmetrically provided with lifting plate sliding seats 92, the lifting plate sliding seats 92 are in sliding connection with the limiting frame 12, a second guide rod sliding groove 15 is disposed at a middle position of an upper end of the lifting plate 9, an upper end of the guide rod 10 on the other side penetrates through the second guide rod sliding groove 15 and extends to a position above the second guide rod sliding groove 15, limiting rod groove sets are symmetrically formed on two sides of the second guide rod sliding groove 15, and three limiting rod grooves 14 are formed in equal distance in each limiting rod groove set.

Referring to fig. 6-7, a hand wheel 6 is disposed at the front end of one side of the outer casing 2, fixing plates 30 are symmetrically disposed at the inner sides of the front and rear ends of the outer casing 2, a first threaded rod 31 and a first positioning rod 32 are disposed between one ends of the two fixing plates 30, the first threaded rod 31 is disposed below the first positioning rod 32, the first positioning rod 32 is fixedly connected with the fixing plates 30, the first threaded rod 31 is rotatably connected with the fixing plates 30, one end of the first threaded rod 31 penetrates through the fixing plates 30 and the outer casing 2 and is fixedly connected with the hand wheel 6, a second threaded rod 33 and a second positioning rod 34 are disposed between the other ends of the two fixing plates 30, the second threaded rod 33 is disposed below the second positioning rod 34, the second threaded rod 34 is fixedly connected with the fixing plates 30, the second threaded rod 33 is rotatably connected with the fixing plates 30, sliding plates 35 are symmetrically sleeved outside the two ends of the first threaded rod 31 and the first positioning rod 32 and outside the two ends of the second threaded rod 33 and the second positioning rod 34, a limiting rod fixing plate 36 is arranged above the front side two sliding plates 35 and above the rear side two sliding plates 35, four limiting plate fixing blocks 5 are fixedly arranged above one side of the limiting rod fixing plate 36 at equal intervals, the limiting plate fixing blocks 5 are fixedly connected with the limiting plate 4, the upper ends of the limiting plate fixing blocks 5 penetrate through the limiting plate fixing block sliding grooves 7 and are in sliding connection with the limiting plate fixing block sliding grooves 7, three limiting rods 11 are fixedly arranged above the other side of the limiting rod fixing plate 36 at equal intervals, the upper ends of the limiting rods 11 penetrate through the limiting rod grooves 14 and are in sliding connection with the limiting rod grooves 14, one end of a second threaded rod 33 penetrates through the fixing plate 30 and is connected with a first transmission belt pulley 37 through a key, one side of the second threaded rod 33 is provided with a threaded rod motor 41, the threaded rod motor 41 is fixedly connected with the fixing plate 30, the output end of the threaded rod motor 41 penetrates and extends to the outside of the fixed plate 30 and is connected with a second transmission belt pulley 38 through a key, the second transmission belt pulley 38 is connected with the first transmission belt pulley 37 through belt transmission, a gear 39 is arranged on the front side of the second transmission belt pulley 38, the gear 39 is coaxially connected with the second transmission belt pulley 38, a number of turns sensor 40 is arranged on one side of the gear 39, the number of turns sensor 40 is fixedly connected with the fixed plate 30, a fourth transmission belt pulley 43 is fixedly sleeved on the outside of the other side of the first threaded rod 31, a third transmission belt pulley 42 is fixedly sleeved on the outside of the second threaded rod 33, and the third transmission belt pulley 42 is connected with the fourth transmission belt pulley 43 through belt transmission.

Working principle: firstly, the guide rod 10 of the second translation mechanism 29 is erected, the guide rod fixing seat 25 is pushed to rotate anticlockwise along with the rotating shaft between the guide rod fixing seat and the translation mechanism limiting frame 23 by stretching the electric telescopic cylinder 22 until the guide rod 10 is in a vertical state, at the moment, a worker correspondingly inserts a hole groove reserved at the front end of a packaging bag into the guide rod 10, the packaging bag is put into the packaging bag, meanwhile, the electric telescopic cylinder 22 of the first translation mechanism 28 is contracted, the guide rod 10 of the first translation mechanism 28 is put down and is in a horizontal state by rotating, the translation driving motor 26 is started to rotate positively, the second translation mechanism 29 is driven to move forwards by the driving belt 19 through the cooperation of the translation driving motor 26 and the driving belt 27, meanwhile, the first translation mechanism 28 moves backwards, the guide rod fixing seat 25 in the horizontal state of the first translation mechanism 28 is lower than the guide rod fixing seat 25 in the vertical state of the second translation mechanism 29, when the guide rod 10 moves into the second guide rod sliding groove 15 and guides the whole packaging bag to the upper part of the lifting plate 9 completely, the driving rod 13 driven by the lifting driving motor 16 rotates, and simultaneously the lifting plate 9 is lifted upwards in an integral way in cooperation with the limit of the limit frame 12, so that the packaging bag is driven upwards, the manipulator is convenient to grasp the packaging bag, the width of the packaging bag can be adjusted between the two limit plates 4 and the opposite limit rods 11, the second driving belt pulley 38 and the gear 39 are driven to synchronously rotate through the threaded rod motor 41, the number of rotation of the gear 39 is monitored by the number of rotation sensor 40, the second driving belt pulley 38 drives the first driving belt pulley 37 to rotate through a belt, the first driving belt pulley 37 drives the second threaded rod 33 to rotate, the third driving belt pulley 42 synchronously rotates while the second threaded rod 33 rotates, the third driving belt pulley 42 drives the fourth driving belt pulley 43 to rotate through a belt, the fourth driving belt pulley 43 drives the first threaded rod 31 to rotate, meanwhile, the first threaded rod 31 is driven to rotate through the sliding connection and limiting of the first positioning rod 32 and the sliding plate 35, the second threaded rod 33 and the second positioning rod 34 are matched to realize synchronous movement of the two limiting rod fixing plates 36, so that position adjustment of the limiting rod 11 and the limiting plate fixing block 5 is realized, the limiting plate fixing block 5 is fixedly connected with the limiting plate 4, further, adjustment of the distance between the two limiting plates 4 is realized, and when the first threaded rod 31, the first positioning rod 32, the second threaded rod 33 and the second positioning rod 34 are assembled and adjusted, the first threaded rod 31 is driven to rotate through rotation of the rotary hand wheel 6, and adjustment during assembly is realized.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (8)

1. The utility model provides a bagging apparatus in turn from front to back, includes bagging apparatus body (1), its characterized in that: the utility model discloses a rotary table, which is characterized in that an outer shell (2) is arranged on the peripheral surface of an upper bag device body (1), an upper supporting plate (3) is fixedly arranged on one side above the outer shell (2), limiting plates (4) are symmetrically arranged on the front side and the rear side of the upper supporting plate (3), a bottom plate (17) is arranged on the bottom end surface of the upper bag device body (1), a translational mechanism limiting bar (18) is symmetrically arranged on the front side and the rear side above the bottom plate (17), a first translational mechanism (28) is slidingly arranged above the translational mechanism limiting bar (18), a second translational mechanism (29) is slidingly arranged above the translational mechanism limiting bar (18) on the other side, guide rods (10) are respectively arranged at the upper ends of the first translational mechanism (28) and the second translational mechanism (29), a translational mechanism bottom plate (21) is arranged at the lower end of the first translational mechanism (28) and the second translational mechanism (29), an electric telescopic cylinder (22) and a translational mechanism limiting frame (23) are symmetrically arranged on the front side and rear side above the translational mechanism bottom plate (17), a guide rod (24) is arranged on the upper side of the translational mechanism limiting bar (23), a guide rod (25) is fixedly connected with a fixed seat (25), the rear end of the rotating rod (24) is rotationally connected with the upper end of the electric telescopic cylinder (22), a limiting frame (12) is fixedly arranged at the middle position of the inner wall of the other side of the outer shell (2), and a lifting plate (9) is arranged on one side of the limiting frame (12).

2. A front-to-back alternating bagging apparatus according to claim 1, wherein: the middle position department of last backup pad (3) is provided with first guide bar spout (8), and one side guide bar (10) of second translation mechanism (29) are located the below of first guide bar spout (8), the bilateral symmetry of first guide bar spout (8) is provided with limiting plate fixed block spout group, and every group limiting plate fixed block spout group equidistance is provided with four limiting plate fixed block spouts (7).

3. A front-to-back alternating bagging apparatus according to claim 2, wherein: the utility model discloses a translation mechanism, including translation mechanism bottom plate (21), translation mechanism bottom plate (21) and translation mechanism, electric telescopic jar (22) are located one side of translation mechanism limit frame (23), the lower extreme of electric telescopic jar (22) is connected through the pivot rotation with translation mechanism bottom plate (21), the upper end and the dwang (24) fixed connection of guide bar fixing base (25) one side, and the lower extreme and the upper end of translation mechanism limit frame (23) of guide bar fixing base (25) one side are connected through the pivot rotation.

4. A front-to-back alternating bagging apparatus according to claim 3, wherein: the automatic lifting device is characterized in that a driven belt pulley (20) is arranged at the middle position of one side above the bottom plate (17), a driving belt pulley (27) is arranged at the middle position of the other side above the bottom plate (17), a translation driving motor (26) is arranged below the driving belt pulley (27), the translation driving motor (26) is fixedly connected with the bottom plate (17), the output end of the translation driving motor (26) is connected with the driving belt pulley (27) through key transmission, a transmission belt (19) is arranged between the driving belt pulley (27) and the driven belt pulley (20), and one end of the bottom plate (21) of the translation mechanism is fixedly sleeved on the outside of the transmission belt (19).

5. The front-to-back alternating bagging apparatus of claim 4, wherein: the utility model discloses a limit frame (12) is provided with actuating lever (13) in intermediate position department, the below of actuating lever (13) is provided with lift driving motor (16), and the inner wall fixed connection of lift driving motor (16) and shell body (2), the output of lift driving motor (16) passes through the coupling joint with the lower extreme of actuating lever (13), one end that lift plate (9) are close to limit frame (12) is provided with lift plate center seat (91), and the center position department and the actuating lever (13) threaded connection of lift plate center seat (91) one side, the both ends symmetry of lift plate center seat (91) one side is provided with lift plate sliding seat (92), and lift plate sliding seat (92) and limit frame (12) sliding connection, the intermediate position department of lift plate (9) upper end is provided with second guide bar spout (15), and the upper end of opposite side guide arm (10) passes second guide bar spout (15) and extends to the top of second guide bar spout (15), limit set up limit groove (14) of limit groove set up of limit groove symmetry, limit frame (14) limit groove group's equidistance.

6. The front-to-back alternating bagging apparatus of claim 5, wherein: the front end of shell body (2) one side is provided with hand wheel (6), the inboard symmetry at both ends is provided with fixed plate (30) around shell body (2), two be provided with first threaded rod (31) and first locating lever (32) between fixed plate (30) one end, and first threaded rod (31) are located the below of first locating lever (32), first locating lever (32) and fixed plate (30) fixed connection, and first threaded rod (31) and fixed plate (30) rotate to be connected, the one end of first threaded rod (31) runs through fixed plate (30) and shell body (2) and with hand wheel (6) fixed connection.

7. The front-to-back alternating bagging apparatus of claim 6, wherein: two be provided with second threaded rod (33) and second locating lever (34) between fixed plate (30) other end, and second threaded rod (33) are located the below of second locating lever (34), second locating lever (34) and fixed plate (30) fixed connection, and second threaded rod (33) rotate with fixed plate (30) to be connected, the outside at first threaded rod (31) and first locating lever (32) both ends and the outside symmetry cover at second threaded rod (33) and second locating lever (34) both ends are equipped with slide plate (35), and the front side is two the top and the rear side of slide plate (35) are two the top of slide plate (35) all is provided with gag lever post fixed plate (36), the top equidistance of gag lever post fixed plate (36) one side is fixedly provided with four gag lever post fixed blocks (5), and gag lever post fixed block (5) and limiting plate (4) fixed connection, the upper end of gag lever post fixed block (5) passes gag lever post fixed block (7) and is connected with limit plate (7) and limit plate (14) and limit slot (14) and limit plate fixed connection, limit plate (11) side limit plate fixed plate (14) and limit plate fixed slot (14) are passed.

8. The front-to-back alternating bagging apparatus of claim 7, wherein: one end of the second threaded rod (33) penetrates through the fixed plate (30) and is connected with the first transmission belt pulley (37) through a key, one side of the second threaded rod (33) is provided with the threaded rod motor (41), the threaded rod motor (41) is fixedly connected with the fixed plate (30), the output end of the threaded rod motor (41) penetrates through and extends to the outside of the fixed plate (30) and is connected with the second transmission belt pulley (38) through the key, the second transmission belt pulley (38) is connected with the first transmission belt pulley (37) through a belt transmission, the front side of the second transmission belt pulley (38) is provided with the gear (39), the gear (39) is coaxially connected with the second transmission belt pulley (38), one side of the gear (39) is provided with the number of turns sensor (40), the number of turns sensor (40) is fixedly connected with the fixed plate (30), a fourth transmission belt pulley (43) is fixedly sleeved on the outside of the other side of the first threaded rod (31), a third transmission belt pulley (42) is fixedly sleeved on the outside of the second threaded rod (33), and the third transmission belt pulley (42) is connected with the fourth transmission belt pulley (43) through the transmission belt.