CN113479404B

CN113479404B - Packaging bag opening device of packaging machine

Info

Publication number: CN113479404B
Application number: CN202110801917.1A
Authority: CN
Inventors: 杨明伟; 宋强; 吴洋
Original assignee: Hefei Huapu Power Numerical Control Technology Co ltd
Current assignee: Hefei Huapu Power Numerical Control Technology Co ltd
Priority date: 2021-07-15
Filing date: 2021-07-15
Publication date: 2022-09-02
Anticipated expiration: 2041-07-15
Also published as: CN113479404A

Abstract

The invention relates to a packaging bag opening device of a packaging machine, which comprises a placing table, a packaging conveyor belt, a mounting plate, a mounting seat and a packaging bag, wherein the packaging conveyor belt is fixedly arranged on one side of the placing table; through setting up suction means, make it can high efficiency absorb packing bag than single thin, conveniently adsorb a packing bag in addition once, can once not adsorb a plurality ofly, then cooperate elevating system again and pull open the sack of packing bag, make things convenient for first expand prop mechanism and second expand the port both sides that prop the mechanism and enter into packing bag and carry out rigid expansion, make it support stability more.

Description

Packaging bag opening device of packaging machine

Technical Field

The invention relates to the technical field of packaging, in particular to a packaging bag opening device of a packaging machine.

Background

The packaging machines are of various types and the classification methods are various. From different viewpoints, the packaging machine can be divided into a liquid packaging machine, a powder packaging machine, a particle packaging machine, a skin packaging machine, a sauce packaging machine, an electronic combination scale packaging machine and a pillow type packaging machine according to mechanical types; according to the packaging function, an inner packaging machine and an outer packaging machine are arranged; according to the packaging industry, the packaging machine comprises packaging machines for food, daily chemical industry, textile and the like; according to the packaging station, a single-station and multi-station packaging machine is provided; according to the automatic process, a semi-automatic packaging machine and a full-automatic packaging machine are provided; the packaging bag opening mechanism is one of the important components of the packaging machine.

However, the conventional packaging machine blows the mouth of the packaging bag through the fan, so that the packaging bag shakes and is unstable due to wind, and is easy to separate from the clamp, and the wind blows the standby packaging bag to cause disorder. Accordingly, those skilled in the art have provided a bag spreader for a packaging machine that addresses the problems set forth above in the background.

Disclosure of Invention

In order to solve the problems of the background art, the present invention provides a packing bag opening device of a packing machine.

The packaging bag opening device of the packaging machine adopts the following technical scheme:

a packaging bag opening device of a packaging machine comprises a placing table, a packaging conveying belt, a mounting plate, a mounting seat and a packaging bag, wherein the packaging conveying belt is fixedly mounted on one side of the placing table, the packaging conveying belt is fixedly mounted on the side, away from the packaging conveying belt, of the placing table, the mounting plate is fixedly mounted on the front side of the placing table, the mounting seat is fixedly mounted on one side of the mounting plate and is located between the placing table and the packaging conveying belt, the packaging bag is movably arranged at the top of the placing table, a sliding seat is fixedly mounted at the top of the mounting plate, a sliding table is slidably mounted on one side of the sliding seat, a hydraulic cylinder is fixedly mounted on one side of the sliding table, an absorption mechanism is fixedly mounted at the bottom of the hydraulic cylinder and is located above the placing table, and a lifting mechanism is fixedly mounted at the top of the mounting seat;

the suction mechanism comprises a transverse plate, the transverse plate is fixed to the bottom of the hydraulic cylinder, metal tubes are inserted into the top of the transverse plate and are provided with a plurality of groups, hoses are fixedly connected to the bottoms of the metal tubes and penetrate through the inner side of the transverse plate, a first suction disc is fixedly connected to the bottom of each hose, springs are movably arranged on the outer side of each hose, the top ends of the springs are fixed to the bottom of the transverse plate, guide columns are fixedly connected to two sides of each first suction disc, guide grooves are formed in the inner side of the transverse plate in a penetrating mode, the tops of the guide columns are located in inner cavities of the guide grooves, and a first air tube is fixedly connected to one end of each metal tube;

the lifting mechanism comprises a lifting plate, the lifting plate is slidably mounted on one side of the mounting plate, an adsorption plate is fixedly mounted on the top of the lifting plate, a second sucker is fixedly mounted on the top of the adsorption plate, a second air pipe is fixedly connected to the bottom of the second sucker, one end of the second air pipe is fixedly connected with the first air pipe, a pressing plate is fixedly connected to one side of the lifting plate, a connecting column is movably inserted into one end of the pressing plate in a penetrating mode, a pressing block is fixedly connected to the bottom of the connecting column and located on the top of the packaging bag, and a first expanding mechanism and a second expanding mechanism are rotatably mounted on two sides of the top of the lifting plate respectively;

first expand prop mechanism and second and expand and prop the mechanism and all include the pivot, and the pivot activity runs through the lifter plate inboard, top one side fixed mounting of pivot has the expansion fagging, and expands the top that the fagging is located the adsorption plate, the bottom fixed mounting of pivot has the motor, and the motor is fixed in the bottom of lifter plate, the fixed stop gear that is equipped with in the outside of pivot.

Through adopting above-mentioned technical scheme, through setting up suction means, make it can the packing bag that single ratio is thin be drawn to high efficiency, and conveniently once adsorb a bag, can once not adsorb a plurality ofly, then cooperate elevating system to pull open the sack of bag, make things convenient for first expand prop mechanism and second expand prop the mechanism and enter into the port both sides of bag and carry out rigid expansion and prop, make it support more stable, make things convenient for the goods to enter into the inner chamber of bag, the whole absorption of bag of so making a bag, remove and strut all more firmly, reduce the tradition and blow out the range of shaking that the port of bag of making a bag produced through wind-force, and the stability is improved.

Preferably, a fixing plate is fixedly mounted on one side of the sliding seat, an air pump is fixedly mounted at the top of the fixing plate, and one end of the first air pipe is fixedly connected with the air pump.

Through adopting above-mentioned technical scheme, the fixed plate is used for elevating system's installation, and the air pump is used for the power of sucking disc vacuum pumping.

Preferably, one side of the top of the placing table is fixedly provided with a limiting column, one end of the packaging bag is provided with a guiding hole matched with the limiting column in a penetrating mode, and the limiting column penetrates through the guiding hole.

Through adopting above-mentioned technical scheme, the spacing pot head that the packing bag is close to port one end is in the top of spacing post, and is spacing like this to the packing bag, reduces the possibility of packing bag skew.

Preferably, both sides of the bottom of the lifting plate are fixedly provided with air cylinders, and the air cylinders are fixed at the top of the fixing plate.

Through adopting above-mentioned technical scheme, the cylinder is used for the power that the lifter plate goes up and down.

Preferably, the one end fixedly connected with slider of lifter plate, the spout has been seted up to one side of mounting panel is fixed, and the slider slides and is located the inner chamber of spout.

Through adopting above-mentioned technical scheme, the cooperation setting of slider and spout is spacing to lifter plate elevating height.

Preferably, stop gear includes spacing seat, and spacing seat fixed mounting is in the top both sides of lifter plate, the inner chamber of spacing seat is run through in the pivot activity, spacing groove has been seted up to spacing seat inner chamber lateral wall is fixed, one side fixedly connected with stopper of pivot, and the stopper activity is located the inner chamber of spacing groove.

Through adopting above-mentioned technical scheme, stop gear fixes a position the rotatory angle of countershaft, makes its rotation angle more accurate.

In summary, the invention has the following beneficial technical effects:

1. through setting up suction means, make it can high efficiency absorb packing bag than single thin, and conveniently once adsorb packing bag, can once not adsorb a plurality ofly, then cooperate elevating system to pull open the sack of packing bag again, make things convenient for first expand to prop mechanism and second and expand the port both sides that the mechanism enters into packing bag and carry out rigid expansion and prop, make it support stability more, make things convenient for the goods to enter into packing bag's inner chamber, packing bag whole journey absorbs like this, remove and strut all more firmly, reduce the tradition and blow out the range of shaking that packing bag's port produced through wind-force, and the stability is improved.

2. The spring is arranged on the outer side of the hose at the top of the first suction disc, the guide post is arranged at the top of the first suction disc and is slidably positioned in the inner cavity of the guide groove, and the accumulated height of the packing bags accumulated on the placing table is changed after the packing bags are sucked for multiple times, so that the spring is compressed when the hydraulic cylinder descends to a fixed height, the first suction disc is convenient to adsorb the packing bags with different heights at the bottom, and the flexibility is improved; the pressing block is movably mounted at one end of the pressing plate through the connecting column, so that the pressing block can press the top of the pushed packaging bag along with the self gravity, and the pressing block can ensure the tidy effect of the packaging bag stacked at the bottom while ensuring that the first suction disc can adsorb and drag the packaging bag to rise.

Drawings

FIG. 1 is a schematic view of the overall construction of a bag opening device of a packaging machine according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of the lifting mechanism in a raised position according to an embodiment of the present invention;

FIG. 3 is a schematic perspective view of a placing table according to an embodiment of the present invention;

FIG. 4 is a schematic top view of a placement table according to an embodiment of the present invention;

FIG. 5 is a structural diagram of a state after the first expanding mechanism and the second expanding mechanism rotate in the embodiment of the invention;

FIG. 6 is a schematic side view of the lifting mechanism of FIG. 2 in an embodiment of the present invention;

FIG. 7 is a schematic top view of a spacing mechanism in an embodiment of the present invention;

fig. 8 is an enlarged schematic diagram of a portion a in fig. 1 in the embodiment of the present invention.

Description of reference numerals: 1. a placing table; 2. mounting a plate; 3. a slide base; 4. a sliding table; 5. a hydraulic cylinder; 6. a suction mechanism; 61. a transverse plate; 62. a metal tube; 63. a first air pipe; 64. a first suction cup; 65. a hose; 66. an air pump; 67. a spring; 68. a guide post; 69. a guide groove; 7. a lifting mechanism; 71. a lifting plate; 72. an adsorption plate; 73. a second suction cup; 74. pressing a plate; 75. briquetting; 76. connecting columns; 77. a cylinder; 78. a slider; 79. a second air pipe; 8. a first expanding mechanism; 81. a rotating shaft; 811. a limiting block; 82. expanding a supporting plate; 83. a limiting mechanism; 831. a limiting seat; 832. a limiting groove; 84. a motor; 9. a second expanding mechanism; 10. packaging the conveyor belt; 11. packaging the conveyor belt; 12. a limiting column; 13. packaging; 14. a chute; 15. a mounting seat; 16. and (7) fixing the plate.

Detailed Description

The present invention is described in further detail below with reference to figures 1-8.

The embodiment of the invention discloses a packaging bag opening device of a packaging machine. Referring to fig. 1-8, a packaging bag opening device of a packaging machine comprises a placing table 1, a packaging conveyor belt 10, a packaging conveyor belt 11, a mounting plate 2, a mounting seat 15 and a packaging bag 13, wherein the packaging conveyor belt 10 is fixedly installed on one side of the placing table 1, the packaging conveyor belt 11 is fixedly installed on one side of the placing table 1 far away from the packaging conveyor belt 10, the mounting plate 2 is fixedly installed on the front side of the placing table 1, the mounting seat 15 is fixedly installed on one side of the mounting plate 2, the mounting seat 15 is located between the placing table 1 and the packaging conveyor belt 10, the packaging bag 13 is movably arranged on the top of the placing table 1, a sliding seat 3 is fixedly installed on the top of the mounting plate 2, a sliding table 4 is slidably installed on one side of the sliding seat 3, a hydraulic cylinder 5 is fixedly installed on one side of the sliding table 4, an absorption mechanism 6 is fixedly installed on the bottom of the hydraulic cylinder 5, and the absorption mechanism 6 is located above the placing table 1, the top of the mounting seat 15 is fixedly provided with a lifting mechanism 7;

the suction mechanism 6 comprises a transverse plate 61, the transverse plate 61 is fixed at the bottom of the hydraulic cylinder 5, a metal tube 62 is inserted into the top of the transverse plate 61, a plurality of groups of metal tubes 62 are arranged on the metal tube 62, a hose 65 is fixedly connected to the bottom of the metal tube 62, the hose 65 penetrates through the inner side of the transverse plate 61, a first suction disc 64 is fixedly connected to the bottom of the hose 65, a spring 67 is movably arranged on the outer side of the hose 65, the top end of the spring 67 is fixed at the bottom of the transverse plate 61, guide posts 68 are fixedly connected to both sides of the first suction disc 64, a guide groove 69 is formed in the inner side of the transverse plate 61 in a penetrating manner, the top of the guide posts 68 is located in the inner cavity of the guide groove 69, and a first air tube 63 is fixedly connected to one end of the metal tube 62;

the lifting mechanism 7 comprises a lifting plate 71, the lifting plate 71 is slidably mounted on one side of the mounting plate 2, an adsorption plate 72 is fixedly mounted at the top of the lifting plate 71, a second suction cup 73 is fixedly mounted at the top of the adsorption plate 72, a second air pipe 79 is fixedly connected to the bottom of the second suction cup 73, one end of the second air pipe 79 is fixedly connected with the first air pipe 63, a pressing plate 74 is fixedly connected to one side of the lifting plate 71, a connecting column 76 is movably inserted at one end of the pressing plate 74 in a penetrating manner, a pressing block 75 is fixedly connected to the bottom of the connecting column 76 and is located at the top of the packing bag 13, and a first expanding mechanism 8 and a second expanding mechanism 9 are respectively rotatably mounted on two sides of the top of the lifting plate 71;

first expand and prop mechanism 8 and second and expand and prop mechanism 9 and all include pivot 81, and the pivot 81 activity runs through lifter plate 71 inboard, and top one side fixed mounting of pivot 81 has an expansion fagging 82, and expands fagging 82 and be located the top of adsorption plate 72, and the bottom fixed mounting of pivot 81 has motor 84, and motor 84 is fixed in the bottom of lifter plate 71, and the fixed stop gear 83 that is equipped with in the outside of pivot 81.

A fixing plate 16 is fixedly installed at one side of the sliding seat 3, an air pump 66 is fixedly installed at the top of the fixing plate 16, and one end of the first air pipe 63 is fixedly connected with the air pump 66.

As shown in fig. 3 to 5, the fixing plate 16 is used for mounting the elevating mechanism 7, and the air pump 66 is used for power of vacuum pumping of the suction cup.

A limiting column 12 is fixedly mounted on one side of the top of the placing table 1, a guiding hole matched with the limiting column 12 is formed in one end of the packaging bag 13 in a penetrating mode, and the limiting column 12 penetrates through the guiding hole.

As shown in fig. 1 to 5, a limiting hole at one end of the packaging bag 13 close to the port is sleeved above the limiting column 12, so that the packaging bag 13 is limited, and the possibility of the deviation of the packaging bag is reduced.

The air cylinder 77 is fixedly installed on both sides of the bottom of the lifting plate 71, and the air cylinder 77 is fixed on the top of the fixing plate 16.

As shown in fig. 1 to 3, the cylinder 77 is used for power for elevating the elevating plate 71.

One end fixedly connected with slider 78 of lifter plate 71, one side of mounting panel 2 is fixed and has been seted up spout 14, and the slider 78 slides and is located the inner chamber of spout 14.

As shown in fig. 3, the limiting mechanism 83 positions the rotation angle of the rotating shaft 81 to further accurately position the rotation angle.

Limiting mechanism 83 includes limiting seat 831, and limiting seat 831 fixed mounting is in the top both sides of lifter plate 71, and the pivot 81 activity runs through the inner chamber of limiting seat 831, and limiting groove 832 has been seted up to limiting seat 831 inner chamber lateral wall fixed, one side fixedly connected with stopper 811 of pivot 81, and the stopper 811 activity is located the inner chamber of limiting groove 832.

As shown in fig. 7, the limiting block 811 at one side of the rotating shaft 81 performs limiting movement in the inner cavity of the limiting groove 832, so that the limiting mechanism 83 positions the rotating angle of the rotating shaft 81, and the rotating angle is more accurate.

The implementation principle of the packaging bag opening device of the packaging machine provided by the embodiment of the invention is as follows: a plurality of packing bags 13 are orderly stacked above the placing table 1, and a limiting hole at one end, close to a port, of each packing bag 13 is sleeved above the limiting column 12, so that the packing bags 13 are limited, the possibility of deflection of the packing bags is reduced, and the packing bags can be accurately adsorbed by the adsorption mechanism 6 conveniently (at the moment, the state is shown in figure 1); after the packing bag 13 is put, the sliding table 4 moves on the sliding base 3 to drive the hydraulic cylinder 5 to be positioned at the top of the port of the packing bag 13, namely the transverse plate 61 is positioned above the limiting column 12, then the hydraulic cylinder 5 drives the transverse plate 61 of the suction mechanism 6 to descend to enable the first sucker 64 at the bottom of the transverse plate 61 to be attached above the topmost packing bag 13, then the air pump 66 works to pump air in the inner cavity of the first sucker 64 through the first air pipe 63 and the metal pipe 62, so that the first sucker 64 is adsorbed on the surface of the packing bag 13, then the hydraulic cylinder 5 drives the transverse plate 61 to ascend, so that the first sucker 64 at the bottom of the transverse plate 61 adsorbs a group of packing bags 13 to ascend, after the ascent, the sliding table 4 continues to move on the sliding base 3 to enable the suction mechanism 6 to drag the packing bag 13 to be positioned above the adsorption plate 72 of the lifting mechanism 7, then the hydraulic cylinder 5 continues to drive the transverse plate 61 to descend, so that the bottom surface of the packing bag 13 is attached on the second sucker 73 on the adsorption plate 72, then the air pump 66 continues to pump the air in the inner cavity of the second suction cup 73 through the second air pipe 79, so that the second suction cup 73 adsorbs the bottom surface of the bag 13, and then the hydraulic cylinder 5 ascends and returns to its original position, so that the top and the bottom of the port of the bag 13 are respectively pulled and opened by the first suction cup 64 and the second suction cup 73, after the mouth of the bag 13 is opened, the motor 84 rotates to reversely rotate the first spreading mechanism 8 and the second spreading mechanism 9, so that the spreading plates 82 of the first spreading mechanism 8 and the second spreading mechanism 9 are rotatably supported on the two sides of the port of the bag 13 with the mouth opened (at this time, as shown in fig. 5 and 6), after spreading, the first suction cup 64 and the second suction cup 73 are separated from the bag 13 spread by the spreading plates 82 after opening the release valve, and the transverse plate 61 moves to return to the end close to the packaging conveyor belt 11, finally the air cylinder 77 drives the top lifting plate 71 to ascend, the packing bag 13 with the bag opening opened by the first expanding mechanism 8 and the second expanding mechanism 9 is lifted to be positioned at one end of the packing conveyor belt 10 (at the moment, the state is shown in figure 2), so that the goods on the packing conveyor belt 10 can be automatically conveyed to enter the inner cavity of the packing bag 13 with the bag opening opened, the packing bag 13 is automatically expanded, and the goods can be simply and quickly conveniently entered into the inner cavity of the packing bag 13; the suction mechanism 6 is arranged, so that the single-thin packing bag 13 can be quickly and efficiently sucked, one packing bag 13 can be conveniently sucked at a time, a plurality of packing bags can not be sucked at a time, then the lifting mechanism 7 is matched to pull the bag opening of the packing bag 13 open, the first expanding mechanism 8 and the second expanding mechanism 9 can conveniently enter the two sides of the port of the packing bag 13 to be rigidly expanded and expanded, the support is more stable, goods can conveniently enter the inner cavity of the packing bag 13, the whole sucking, moving and expanding of the packing bag 13 are more stable, the shaking amplitude generated by blowing the port of the packing bag 13 through wind power in the prior art is reduced, the stability is improved, and the possibility that the packing bag 13 is separated from a clamp and the standby packing bag 13 is blown disorderly by the wind power is reduced; the spring 67 is mounted on the outer side of the hose 65 at the top of the first suction disc 64, the guide post 68 arranged at the top of the first suction disc 64 is slidably positioned in the inner cavity of the guide groove 69, and the accumulated height of the packing bags 13 accumulated on the placing table 1 is changed after the packing bags are sucked for multiple times, so that the spring 67 is compressed when the hydraulic cylinder 5 descends to a fixed height, the first suction disc 64 can be conveniently sucked to the packing bags 13 with different heights at the bottom, and the flexibility is improved; the pressing block 75 is movably installed at one end of the pressing plate 74 through the connecting column 76, so that the pressing block 75 presses the top of the pushed packing bag 13 along with the self gravity, and thus the pressing block 75 ensures that the first suction cup 64 can suck and drag the packing bag 13 to ascend and simultaneously ensures the tidy effect of the packing bag 13 stacked at the bottom.

The above are all preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. The utility model provides a wrapping bag distraction device of packaging machine, includes stand (1), packing conveyer belt (10), encapsulation conveyer belt (11), mounting panel (2), mount pad (15) and packing bag (13), one side fixed mounting of stand (1) has packing conveyer belt (10), one side fixed mounting that packing conveyer belt (10) were kept away from to stand (1) has encapsulation conveyer belt (11), the front side fixed mounting of stand (1) has mounting panel (2), one side fixed mounting of mounting panel (2) has mount pad (15), and mount pad (15) are located between stand (1) and packing conveyer belt (10), the top activity of stand (1) is equipped with packing bag (13), its characterized in that: the top fixed mounting of mounting panel (2) has slide (3), one side slidable mounting of slide (3) has slip table (4), one side fixed mounting of slip table (4) has pneumatic cylinder (5), the bottom fixed mounting of pneumatic cylinder (5) has suction means (6), and suction means (6) are located the top of putting platform (1), the top fixed mounting of mount pad (15) has elevating system (7), top one side fixed mounting of putting platform (1) has spacing post (12), the one end of packing bag (13) runs through and sets up the guiding hole with spacing post (12) assorted, and spacing post (12) run through the guiding hole;

the suction mechanism (6) comprises a transverse plate (61), the transverse plate (61) is fixed at the bottom of the hydraulic cylinder (5), a metal pipe (62) is inserted at the top of the transverse plate (61), and a plurality of groups of metal pipes (62) are arranged, the bottom of each metal pipe (62) is fixedly connected with a hose (65), the hose (65) penetrates through the inner side of the transverse plate (61), the bottom of the hose (65) is fixedly connected with a first sucker (64), the outer side of the hose (65) is movably provided with a spring (67), the top end of the spring (67) is fixed at the bottom of the transverse plate (61), guide posts (68) are fixedly connected with both sides of the first sucker (64), a guide groove (69) is arranged on the inner side of the transverse plate (61) in a penetrating way, the top of the guide column (68) is positioned in the inner cavity of the guide groove (69), and one end of the metal pipe (62) is fixedly connected with a first air pipe (63);

the lifting mechanism (7) comprises a lifting plate (71), the lifting plate (71) is arranged on one side of the mounting plate (2) in a sliding way, an adsorption plate (72) is fixedly arranged at the top of the lifting plate (71), a second suction cup (73) is fixedly arranged at the top of the adsorption plate (72), a second air pipe (79) is fixedly connected at the bottom of the second suction cup (73), one end of the second air pipe (79) is fixedly connected with the first air pipe (63), one side of the lifting plate (71) is fixedly connected with a pressing plate (74), one end of the pressure plate (74) is movably inserted with a connecting column (76) in a penetrating way, the bottom of the connecting column (76) is fixedly connected with a pressing block (75), the pressing block (75) is positioned at the top of the packaging bag (13), and a first expanding mechanism (8) and a second expanding mechanism (9) are respectively rotatably arranged on two sides of the top of the lifting plate (71);

first expand supporting mechanism (8) and second and expand supporting mechanism (9) and all include pivot (81), and pivot (81) activity runs through lifter plate (71) inboardly, top one side fixed mounting of pivot (81) has and expands fagging (82), and expands fagging (82) and be located the top of adsorption plate (72), the bottom fixed mounting of pivot (81) has motor (84), and motor (84) are fixed in the bottom of lifter plate (71), the outside of pivot (81) is fixed and is equipped with stop gear (83), stop gear (83) include spacing seat (831), and spacing seat (831) fixed mounting in the top both sides of lifter plate (71), the inner chamber of spacing seat (831) is run through in the activity of pivot (81), spacing groove (832) have been seted up to spacing seat (831) inner chamber lateral wall fixed, one side fixedly connected with stopper (811) of pivot (81), and the limiting block (811) is movably arranged in the inner cavity of the limiting groove (832).

2. The bag opener of a wrapping machine according to claim 1, characterized in that: one side fixed mounting of slide (3) has fixed plate (16), the top fixed mounting of fixed plate (16) has air pump (66), and the one end and the air pump (66) fixed connection of first trachea (63).

3. The bag opener of claim 2, further comprising: the bottom both sides of lifter plate (71) all fixed mounting have cylinder (77), and cylinder (77) are fixed in the top of fixed plate (16).

4. The bag opener of claim 1, further comprising: one end fixedly connected with slider (78) of lifter plate (71), spout (14) have been fixed to one side of mounting panel (2) seted up, and slider (78) slide and be located the inner chamber of spout (14).