CN220681787U - Paper bag tongue sealing, cutting and waste discharging device - Google Patents

Abstract

The utility model discloses a paper bag tongue sealing, cutting and waste discharging device for express delivery. The waste sucking machine comprises a frame, a paper feeding mechanism, an upper cutter mechanism and a waste sucking mechanism, wherein the paper feeding mechanism comprises a front upper pressing wheel assembly and a front lower roller assembly, the front upper pressing wheel assembly and the front lower roller assembly can synchronously rotate and form a paper conveying channel, and the upper cutter mechanism and the waste sucking mechanism can synchronously rotate and form a waste sucking channel; the front lower roller assembly and the lower waste suction mechanism can synchronously rotate under the drive of the power device, and then the upper cutter mechanism and the front upper pinch roller assembly are driven to synchronously rotate, so that paper enters into the waste cutting channel from the paper conveying channel and is cut and sucked by the upper cutter mechanism and the lower waste suction mechanism. The advantages are that: the paper bag tongue-sealing waste can be smoothly sent out after being cut off, the production speed of the paper bag winding machine is not influenced, the paper bag winding machine is finished at one time, the production efficiency is effectively improved, the manufacturing cost of the express paper bags of electronic commerce is obviously reduced, and the paper bag tongue-sealing waste cutting machine has a popularization prospect.

Description

Paper bag tongue sealing, cutting and waste discharging device

Technical Field

The utility model relates to paper bag manufacturing equipment, in particular to a paper bag tongue sealing, cutting and waste discharging device for express delivery.

Background

In the prior art, the electronic commercial express paper bags are provided with sealing tongues, at present, the conventional method for manufacturing the express paper bags is to manufacture the express paper bags on a flat Zhang Zhidai machine after the appearance die cutting is finished on the die cutting machine, however, the speed of producing the paper bags by the flat paper bag machine is slow, the production efficiency is low, secondary manufacturing is required, and the four-edge materials are wasted by the production process of die cutting on the die cutting machine, so that the manufacturing cost of the bag is high, the popularization and the use of the electronic commercial express paper bags are seriously influenced, and therefore, in order to reduce the use cost, plastic materials are used for replacing the paper bags in the market, but the material of the plastic bags influences the environmental protection, so that the production efficiency is improved, the manufacturing cost of the paper bags is effectively reduced, and the environmental protection problem is solved.

Disclosure of Invention

The utility model aims to solve the technical problem of providing the paper bag tongue sealing, cutting and waste discharging device which can effectively improve the production efficiency, effectively reduce the manufacturing cost of paper bags and solve the environmental protection problem.

In order to solve the technical problems, the paper bag tongue sealing, waste cutting and waste discharging device comprises a frame, a paper feeding mechanism, an upper cutter mechanism and a lower waste sucking mechanism, wherein the paper feeding mechanism is arranged through the frame and used for conveying paper, the upper cutter mechanism is positioned at the rear side of the paper feeding mechanism and used for cutting waste, the lower waste sucking mechanism is used for sucking waste, the paper feeding mechanism comprises a front upper pressing wheel assembly and a front lower roller assembly, the front upper pressing wheel assembly and the front lower roller assembly can synchronously rotate and form a paper conveying channel, and the upper cutter mechanism and the lower waste sucking mechanism can synchronously rotate and form a waste cutting channel; the front lower roller assembly and the waste suction mechanism can synchronously rotate under the drive of the power device, and then the upper cutter mechanism and the front upper pinch roller assembly are driven to synchronously rotate, so that paper enters into the waste cutting channel from the paper conveying channel and is cut and sucked by the upper cutter mechanism and the waste suction mechanism.

The upper cutter mechanism comprises a main shaft, a pair of cutter holder fixing wheels fixedly arranged on the main shaft, a pair of paper pressing wheels which are arranged between the pair of cutter holder fixing wheels and can axially move on the main shaft, a cutter holder which passes through the pair of paper pressing wheels and is arranged on the pair of cutter holder fixing wheels, and a cutting tooth cutter fixedly arranged on the cutter holder.

The machine frame is provided with two cutter adjusting assemblies for adjusting the upper cutter mechanism, each cutter adjusting assembly comprises a first slider guide rail, a first slider which is installed in the first slider guide rail and can move up and down through the guide of the first slider guide rail, and a first elastic adjusting structure which is matched with the first slider, wherein two ends of the main shaft are respectively installed on the first slider of the two cutter adjusting assemblies through bearings.

The front upper pinch roller assembly comprises a pinch roller shaft, a pair of front upper pinch rollers arranged on the pinch roller shaft and two front upper pinch roller adjusting assemblies arranged on the frame and used for adjusting the front upper pinch roller assembly, each front upper pinch roller adjusting assembly comprises a second slide block guide rail, a second slide block which is arranged in the second slide block guide rail and can move up and down through the guide of the second slide block guide rail, and a second elastic adjusting structure matched with the second slide block, wherein two ends of the pinch roller shaft are respectively arranged on the second slide block of the front upper pinch roller adjusting assembly through bearings.

The first elastic adjusting structure comprises a first screw rod connected with the first sliding block, a first adjusting hand wheel arranged outside the first screw rod, and a first pressure spring sleeved on the first screw rod and pressed between the first adjusting hand wheel and the first sliding block; the second elastic adjusting structure comprises a second screw rod connected with the second sliding block, a second adjusting hand wheel arranged outside the second screw rod, and a second pressure spring sleeved on the second screw rod and pressed between the second adjusting hand wheel and the second sliding block.

The first sliding block guide rail and the second sliding block guide rail are fixedly arranged on the same fixed plate, the first adjusting hand wheel and the second adjusting hand wheel are both screwed on the fixed plate, a support plate installed through a cushion block is arranged at the top of the fixed plate, a first screw rod penetrates through the support plate and is screwed with a first nut, and a second screw rod penetrates through the support plate and is screwed with a second nut.

The waste suction mechanism comprises a ventilation rotating shaft with an axial ventilation hole, a suction nozzle which is radially arranged on the ventilation rotating shaft and communicated with the axial ventilation hole, and a lower groove roller which is fixedly arranged on the ventilation rotating shaft and matched with the suction nozzle, wherein a cutter groove corresponding to a cutting tooth cutter is formed in the lower groove roller, and a gas distribution mechanism is arranged on one side of the ventilation rotating shaft.

The air distribution mechanism comprises a fixed air disc fixedly arranged on an air ventilation rotating shaft, an air distribution sleeve and an air distribution sleeve fixing seat, wherein the air distribution sleeve is arranged on the air ventilation rotating shaft through a bearing and matched with the fixed air disc, the air distribution sleeve fixing seat is used for supporting the air distribution sleeve, a pipe joint used for being connected with a vacuum air pump through an air pipe is arranged on the air distribution sleeve, an air vent is arranged on the fixed air disc, and an air vent groove matched with the air vent is arranged on the air distribution sleeve.

And a waste discharge mechanism is arranged below the waste suction mechanism.

The waste discharge mechanism comprises a waste suction box positioned below the lower groove roller, a baffle plate arranged beside the waste suction box and a supporting plate arranged at the top of the baffle plate.

The lower side of the lower groove roller is provided with a fixed rod and a waste shoveling plate arranged on the fixed rod, and the waste shoveling plate is provided with shovel teeth extending into a knife groove of the lower groove roller.

The utility model has the advantages that:

through the last pinch roller subassembly and preceding lower roll subassembly of preceding that is formed with paper conveying passageway and be formed with last cutter mechanism and the waste suction mechanism of cutting waste channel, can make paper enter into from paper conveying passageway and cut waste and inhale waste by last cutter mechanism and waste suction mechanism down in the waste channel, thereby can be smoothly with the waste material delivery after excision of paper bag tongue sealing waste, not influence reel paper bag machine production speed, accomplish on reel paper bag machine, also effectually improved production efficiency, show the cost of manufacture of E-commerce express delivery paper bag, very have popularization prospect, the environmental protection problem that paper bag manufacturing cost too high had to adopt the plastic bag on the tradition has been solved.

Drawings

FIG. 1 is a schematic diagram showing a front view of a paper bag tongue sealing, cutting and waste discharging device;

FIG. 2 is a schematic view of the cross-sectional structure of A-A of FIG. 1;

FIG. 3 is an enlarged schematic view of the structure of FIG. 1 at B;

FIG. 4 is an enlarged schematic view of FIG. 2 at C;

FIG. 5 is a schematic view of the structure of the air distribution sleeve in the present utility model;

FIG. 6 is a schematic view of the cross-sectional D-D structure of FIG. 5;

FIG. 7 is a schematic view of the waste paper bag cutting structure of the present utility model.

Description of the embodiments

The utility model is described in detail below by way of exemplary embodiments. It is to be understood that elements, structures, and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.

In the description of the present utility model, it should be noted that the positional or positional relationship indicated by the terms such as "inner", "outer", "upper", "lower", "front", "rear", etc. are based on the positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

As shown in the drawing, the paper bag tongue-sealing, waste-cutting and waste-discharging apparatus of the present embodiment includes a frame 100, a paper feeding mechanism 200 for conveying paper mounted by the frame, and an upper cutter mechanism 300 for cutting waste and a lower waste-sucking mechanism 400 for sucking waste located at the rear side of the paper feeding mechanism, as seen in fig. 1, the frame 100 is composed of a pair of wall plates 101 mounted between the pair of wall plates, and the like, the paper feeding mechanism 200 includes a front upper pinch roller assembly 201 and a front lower roller assembly 202, the front upper pinch roller assembly 201 and the front lower roller assembly 202 can be rotated in synchronization and a paper conveying passage 203 is formed, the upper cutter mechanism 300 and the lower waste-sucking mechanism 400 can be rotated in synchronization and a waste-cutting passage 350 is formed, wherein, the upper cutter mechanism 300 comprises a main shaft 301, a pair of cutter holder fixing wheels 302 fixedly arranged on the main shaft, a pair of cutter holder 303 which is arranged between the cutter holder fixing wheels and can axially move on the main shaft, a cutter holder 304 which passes through the cutter holder fixing wheels 302 and is arranged on the cutter holder fixing wheels 302, and a cutting tooth 305 fixedly arranged on the cutter holder 304, wherein the cutter holder 303, the cutter holder fixing wheels 302 are respectively arranged on the main shaft 301 by flat keys and screws, the cutter holder 303 can axially move on the main shaft 301, corresponding scribing lines are engraved on the main shaft 301 according to the surface width of a paper bag, cutter holder grooves for being matched with the cutter holder are formed on the cutter holder 303 and the cutter holder fixing wheels 304, the cutter holder 304 is arranged in the cutter holder grooves of the cutter holder 303 and the cutter holder fixing wheels 304, and is fixed on the cutter holder fixing wheels 304 by screws, the cutter holder 303 axially moves on the cutter holder 304 along the guide of the cutter holder grooves, and the cutting tooth 305 is arranged in the mounting grooves of the cutter holder 304 and is fixed by screws, and the cutting tooth 305 rotates along with the main shaft 301; the frame 100 has two cutter adjusting assemblies 600 for adjusting the upper cutter mechanism 300, each cutter adjusting assembly 600 includes a lining board 612, a slide guide rail 601, a slide 602 mounted in the slide guide rail and capable of moving up and down through the guide of the slide guide rail, and a resilient adjusting structure 603 for cooperating with the slide, wherein two ends of the spindle 301 are mounted on the slide of the two cutter adjusting assemblies respectively through bearings, namely: the main shaft 301 is arranged on a first slide block 602 through a bearing, a first slide block guide rail 601 and a first lining board 612 are fixed on the wallboard 101, and the first slide block 602 is arranged on the first slide block guide rail 601 to move up and down; the front upper pinch roller assembly 201 includes a pinch roller shaft 204, a pair of front upper pinch rollers mounted on the pinch roller shaft, and two front upper pinch roller adjusting assemblies 700 disposed on the frame 100 for adjusting the front upper pinch roller assembly, each front upper pinch roller adjusting assembly 700 includes a second lining plate (not shown), a second slider rail 701, a second slider 702 mounted in the second slider rail and capable of moving up and down through the guiding of the second slider rail, and a second elastic adjusting structure 703 for cooperating with the second slider, both ends of the pinch roller shaft 204 are mounted on the second slider of the two front upper pinch roller adjusting assemblies through bearings, respectively (that is, the front upper pinch roller assembly 201 and the upper cutter mechanism 300 are substantially identical in structural design (mainly the parts such as a knife holder fixing wheel 302, a knife holder 304, and a cutter tooth cutter 305 are not present in the upper cutter mechanism 300), and the front lower pinch roller assembly 202 and the front upper pinch roller assembly 201 are substantially identical in structure, but do not have the front upper pinch roller assembly 202 and the front upper pinch roller adjusting assembly 201 and the lower pinch roller assembly are capable of moving down in the same direction as the front upper pinch roller assembly 201 and the lower pinch roller assembly, and the front upper pinch roller assembly and the lower pinch roller assembly are capable of driving the front upper pinch roller assembly 201 and the lower pinch cutter mechanism 300 to move down from the upper cutter mechanism 300 and the lower cutter mechanism 300 and the waste paper feeding mechanism 300.

Further, the first elastic adjusting structure 603 includes a first screw 604 connected with the first slider, a first adjusting hand wheel 605 arranged outside the first screw 604, and a first pressure spring 606 sleeved on the first screw and pressed between the first adjusting hand wheel and the first slider, a positioning groove for positioning the first pressure spring is arranged at the lower end of the first adjusting hand wheel, the top end of the first pressure spring 606 is limited in the positioning groove, and the pressure of the first pressure spring 606 can be adjusted by rotating the first adjusting hand wheel 605; the second elastic adjusting structure 703 comprises a second screw 704 connected with the second slide block, a second adjusting hand wheel 705 arranged outside the second screw 704, and a second pressure spring 706 sleeved on the second screw and pressed between the second adjusting hand wheel and the second slide block, wherein a placement groove for placing the second pressure spring is also formed in the lower end of the second adjusting hand wheel 705, the top end of the second pressure spring 706 is limited in the placement groove, the second adjusting hand wheel 705 can be rotated to adjust the pressure of the second pressure spring 706, that is to say, the structural designs of the first elastic adjusting structure 603 and the second elastic adjusting structure 703 are the same, and a fixing plate 650 can be fixedly installed on the top upper end surfaces of the first slide block guide rail 601 and the second slide block guide rail 701 for ensuring the use consistency and reliability, namely: the fixing plate 650 is shared by the first elastic adjusting structure 603 and the second elastic adjusting structure 703, threaded holes are formed in the fixing plate 650, the first adjusting hand wheel 605 and the second adjusting hand wheel 705 are both screwed on the fixing plate 650, a support plate 652 installed through a cushion block 651 is arranged at the top of the fixing plate 650, a first nut 607 is screwed after the upper end of the first screw 604 passes through the support plate 652, a second nut 707 is screwed after the upper end of the second screw 704 passes through the support plate 652, and therefore the distance between the cutting tooth cutter 305 and the lower roller waste absorbing mechanism 400 (namely the cutter groove depth of the lower groove roller 404 mentioned below) is adjusted, and the purpose of reliably cutting waste is achieved.

Still further, the waste suction mechanism 400 includes a ventilation shaft 402 with an axial ventilation hole 401, a suction nozzle 403 radially arranged on the ventilation shaft and communicated with the axial ventilation hole, and a lower grooved roll 404 fixedly installed on the ventilation shaft and matched with the suction nozzle, a knife slot corresponding to a cutting tooth knife 305 is arranged on the lower grooved roll 404, as seen in fig. 2, the ventilation shaft 402 is installed on a wallboard 101 through a bearing and a hole retainer ring to rotate, a gear No. two is installed on the ventilation shaft 402, the lower grooved roll 404 is respectively installed on the ventilation shaft 402 through the gear No. two 406 and a locking sleeve 407 in a positioning manner, the knife slot of the lower grooved roll 404 is aligned with the cutting tooth knife 305, then the gear No. two and the locking sleeve 407 are fixed on the ventilation shaft 402, the suction nozzle 403 is installed on the ventilation shaft 402, the air hole of the suction nozzle is communicated with the axial ventilation hole, a fixed rod 411 and a waste plate 410 fixedly installed on the fixed rod 411 are fixedly installed at two ends of the ventilation shaft 402 by a plug 408, the fixed rod 411 is fixed between the two wallboards 101, the knife slot of the lower grooved roll 404 is arranged on the lower grooved roll 404, and the waste material is not dropped into the ventilation shaft 900 through the cutting tooth groove of the lower grooved roll 404;

the valve train 900 comprises a fixed air disk 901 fixedly installed on the ventilation rotating shaft 402, a valve sleeve 902 which is installed on the ventilation rotating shaft through a bearing and matched with the fixed air disk, and a valve sleeve fixing seat 903 and a supporting rod 911 which are used for supporting the valve sleeve, wherein a pipe joint 904 which is used for connecting with a vacuum air pump through an air pipe is installed on the valve sleeve 902, an air vent 905 is arranged on the fixed air disk 901, an air vent groove 906 which can be matched with the air vent is arranged on the valve sleeve 902, the fixed air disk 901 is fixedly fixed on the ventilation rotating shaft 402 through a flat key, the air vent on the fixed air disk 901 is limited by a spacer sleeve 907, the air vent on the fixed air disk 901 is communicated with an axial air vent 401 of the ventilation rotating shaft 402 and rotates along with the ventilation rotating shaft 402, the valve sleeve 902 is fixedly arranged on the ventilation rotating shaft 402 through a needle bearing 908, a plane bearing 909 and a retainer ring 910, the valve sleeve 602 is fixedly arranged on the wall plate 101 through the valve sleeve fixing seat 903 and the supporting rod 911, the valve sleeve fixing seat 903 is respectively connected with the supporting rod fixing seat and the valve sleeve 902, the valve sleeve 902 can move on the valve sleeve 903 to adjust the position and then the pipe joint 903 is arranged on the air pump, and the valve sleeve 902 is connected with the vacuum air pump by the air pump.

As can be seen from the schematic diagram of the air distribution sleeve structure in fig. 5, when the air vent of the fixed air disk 901 rotates to the air vent of the air distribution sleeve to be communicated, the vacuum suction leads to the suction nozzle, the suction nozzle sucks the waste material to move on the lower groove roller 404, when the air vent of the fixed air disk 901 rotates to leave the air vent of the air distribution sleeve 902, the air is closed, and in actual use, the problem that the waste material is not easy to fall off due to vacuum adsorption is found in the air vent of the suction nozzle after the closing, in order to avoid the situation, the waste material smoothly falls off from the lower groove roller, the air vent groove is designed on the air distribution sleeve to be communicated with the outside, when the air vent of the fixed air disk 901 rotates to the air vent groove, the outside air enters, and the waste material and the suction nozzle have no adsorption force, so that the waste material is easy to fall off.

Still further, for the transmission structure among the front lower roller assembly 202, the lower waste suction mechanism 400, the upper cutter mechanism 300 and the front upper pinch roller assembly 201, the following structural design may be adopted: as shown in fig. 2, a first gear 306 is mounted on the main shaft 301, a second gear 406 engaged with the first gear is mounted on the ventilation rotating shaft 402, so that the main shaft 301 and the ventilation rotating shaft 402 are synchronously rotated by the engagement of the first gear 306 and the second gear 406, and a third gear and a fourth gear (not shown in the drawings) engaged with each other are disposed on the roller shaft of the lower roller assembly 202 and the roller shaft of the front upper pinch roller assembly 201, so that the lower roller assembly 202 and the front upper pinch roller assembly 201 can be synchronously rotated, the power device comprises a power motor with an output belt pulley and a second synchronous belt pulley respectively mounted on the first synchronous belt 409 and the roller shaft on the ventilation rotating shaft 402, the output belt pulley 801, the first synchronous belt pulley 409 and the second synchronous belt pulley of the power motor are all mounted on the outer side of the wallboard, so that the power motor can provide power to synchronously rotate the ventilation rotating shaft 402 and the roller shaft, and the rotation of the rotating shaft 402 naturally drives the main shaft 301, and the rotation of the roller shaft naturally drives the roller shaft to rotate, so that the waste paper can be fed into the waste paper cutting mechanism 300 from the ventilation rotating shaft and the waste cutting mechanism and waste paper cutting mechanism and waste cutting waste paper cutting mechanism and waste material cutting and waste material absorbing mechanism 400 from the waste paper cutting and waste paper feeding channel.

Still further, a waste discharging mechanism 500 may be disposed below the lower waste sucking mechanism 400, where the waste discharging mechanism 500 includes a waste sucking box 501 disposed below the lower groove roller, a baffle 502 disposed beside the waste sucking box 501, and a supporting plate 503 disposed on top of the baffle 502, as can be seen from the figure, the supporting plate 503 is mounted on a supporting rod 504 and is disposed at the rear side of the waste cutting channel, the supporting rod 504 is fixedly mounted on the wall board 101, the baffle 502 is mounted on the supporting rod 504, the waste sucking box 501 is mounted inside the wall board 101 and below the lower groove roller, and the waste which is cut off and not falling off is separated from the lower groove roller 404 by a forming relieved tooth and falls into the waste sucking box, especially when the vent hole of the fixed air tray 901 rotates to the air discharging groove, the waste and the suction nozzle have no adsorption force, so that the waste falls into the waste discharging box easily, and the waste falling into the waste sucking box is sent out of the waste sucking box through the pipeline connection fan.

The working principle is as follows:

the output belt pulley 801 of the power motor drives the ventilation rotating shaft 402 and the roll shaft to rotate under the action of the first synchronous belt pulley 409 and the second synchronous belt pulley through the synchronous belt 802, so that the main shaft 301 synchronously rotates along with the ventilation rotating shaft 402, and meanwhile, the front upper pressing wheel assembly 201 synchronously rotates along with the lower roll assembly 202, namely: the front upper pressing wheel, the paper pressing wheel 303 and the cutting tooth knife are driven to rotate, paper bags are fed into the waste cutting channel from the paper conveying channel through the front upper pressing wheel and the lower pressing wheel, when paper bag waste reaches the lower groove roller 404, the suction nozzle 403 sucks the waste to move along the circumference of the lower groove roller, when the waste cutting line knife reaches the knife groove, the cutting tooth knife cuts the waste, when the cut waste moves to the lower part of the supporting plate 503 along the lower groove roller, the suction nozzle closes the air, the waste falls into the waste sucking box 501, a small number of waste is not fallen into the waste sucking box through the waste shoveling plate 410, the lower groove roller 404 is shoveled out of the lower groove roller 404, the waste is not influenced, the supporting plate 503 is lower than the paper feeding plane of the waste cutting channel, the paper bags after cutting are fed into the upper plane of the supporting plate 503 under the cooperation of the paper pressing wheel 303 and the lower groove roller 404 to produce the paper bags, and in addition, the conveying pressure of the paper bags can be guaranteed to be consistent through the first elastic adjusting structure 603 of the cutter adjusting component 600 and the second elastic adjusting structure 703 of the front upper pressing wheel adjusting component 700.

The present utility model is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical substance of the present utility model without departing from the technical content of the present utility model still belong to the protection scope of the technical solution of the present utility model.

Claims (11)

1. The utility model provides a paper bag seals tongue and cuts useless device of discharging which characterized in that: the paper feeding device comprises a frame (100), a paper feeding mechanism (200) installed through the frame and used for conveying paper, an upper cutter mechanism (300) positioned at the rear side of the paper feeding mechanism and used for cutting waste, and a lower waste sucking mechanism (400) used for sucking waste, wherein the paper feeding mechanism (200) comprises a front upper pressing wheel assembly (201) and a front lower roller assembly (202), the front upper pressing wheel assembly (201) and the front lower roller assembly (202) can synchronously rotate and form a paper conveying channel (203), and the upper cutter mechanism (300) and the lower waste sucking mechanism (400) can synchronously rotate and form a waste cutting channel (350); the front lower roller assembly (202) and the waste suction mechanism (400) can synchronously rotate under the drive of the power device, and then the upper cutter mechanism (300) and the front upper pinch roller assembly (201) are driven to synchronously rotate, so that paper enters into the waste cutting channel from the paper conveying channel and is cut and sucked by the upper cutter mechanism (300) and the waste suction mechanism (400).

2. The paper bag tongue sealing, cutting and waste discharging device according to claim 1, wherein: the upper cutter mechanism (300) comprises a main shaft (301), a pair of cutter holder fixing wheels (302) fixedly mounted on the main shaft, a pair of paper pressing wheels (303) which are positioned between the cutter holder fixing wheels and can axially move on the main shaft, a cutter holder (304) which passes through the paper pressing wheels and is mounted on the cutter holder fixing wheels (302), and a cutting tooth cutter (305) fixedly mounted on the cutter holder (304).

3. The paper bag tongue sealing, cutting and waste discharging device according to claim 2, wherein: the machine frame (100) is provided with two cutter adjusting components (600) for adjusting the upper cutter mechanism (300), each cutter adjusting component (600) comprises a first slider guide rail (601), a first slider (602) which is installed in the first slider guide rail and can move up and down through the guide of the first slider guide rail, and a first elastic adjusting structure (603) which is used for being matched with the first slider, and two ends of the main shaft (301) are respectively installed on the first slider of the two cutter adjusting components through bearings.

4. A paper bag tongue sealing, cutting and waste discharging device according to claim 3, wherein: the front upper pinch roller assembly (201) comprises a pinch roller shaft (204), a pair of front upper pinch rollers arranged on the pinch roller shaft and two front upper pinch roller adjusting assemblies (700) arranged on the frame (100) and used for adjusting the front upper pinch roller assembly, each front upper pinch roller adjusting assembly (700) comprises a second slide block guide rail (701), a second slide block (702) arranged in the second slide block guide rail and capable of moving up and down through the guide of the second slide block guide rail, and a second elastic adjusting structure (703) matched with the second slide block, wherein two ends of the pinch roller shaft (204) are respectively arranged on the second slide blocks of the two front upper pinch roller adjusting assemblies through bearings.

5. The paper bag tongue sealing, cutting and waste discharging device according to claim 4, wherein: the first elastic adjusting structure (603) comprises a first screw (604) connected with the first sliding block, a first adjusting hand wheel (605) arranged outside the first screw (604) and a first pressure spring (606) sleeved on the first screw and pressed between the first adjusting hand wheel and the first sliding block; the second elastic adjusting structure (703) comprises a second screw (704) connected with the second sliding block, a second adjusting hand wheel (705) arranged outside the second screw (704) and a second pressure spring (706) sleeved on the second screw and pressed between the second adjusting hand wheel and the second sliding block.

6. The paper bag tongue sealing, cutting and waste discharging device according to claim 5, wherein: the utility model discloses a slider guide rail (601) and No. two slider guide rails (701) fixed mounting are on same fixed plate (650), no. one adjusting hand wheel (605) and No. two adjusting hand wheels (705) all connect soon on fixed plate (650), the top of fixed plate (650) has extension board (652) through cushion (651) installation, no. one screw (604) pass extension board (652) back connects soon has nut (607), no. two screw (704) pass extension board (652) back connects soon has nut (707).

7. The paper bag tongue-sealing, cutting and waste-discharging device according to any one of claims 1 to 6, characterized in that: the waste suction mechanism (400) comprises a ventilation rotating shaft (402) with an axial ventilation hole (401), a suction nozzle (403) which is radially arranged on the ventilation rotating shaft and communicated with the axial ventilation hole, and a lower groove roller (404) which is fixedly arranged on the ventilation rotating shaft and matched with the suction nozzle, wherein a cutter groove corresponding to a cutting tooth cutter (305) is formed in the lower groove roller (404), and a gas distribution mechanism (900) is arranged on one side of the ventilation rotating shaft (402).

8. The paper bag tongue sealing, cutting and waste discharging device according to claim 7, wherein: the air distribution mechanism (900) comprises a fixed air disc (901) fixedly installed on an air ventilation rotating shaft (402), an air distribution sleeve (902) installed on the air ventilation rotating shaft through a bearing and matched with the fixed air disc, and an air distribution sleeve fixing seat (903) used for supporting the air distribution sleeve, wherein a pipe joint (904) used for being connected with a vacuum air pump through an air pipe is installed on the air distribution sleeve (902), an air vent (905) is arranged on the fixed air disc (901), and an air vent groove (906) matched with the air vent is formed in the air distribution sleeve (902).

9. The paper bag tongue sealing, cutting and waste discharging device according to claim 8, wherein: a waste discharging mechanism (500) is arranged below the waste sucking mechanism (400).

10. The paper bag tongue sealing, cutting and waste discharging device according to claim 9, wherein: the waste discharging mechanism (500) comprises a waste sucking box (501) located below the lower groove roller, a baffle plate (502) arranged beside the waste sucking box (501) and a supporting plate (503) arranged at the top of the baffle plate (502).

11. The paper bag tongue sealing, cutting and waste discharging device according to claim 8, 9 or 10, wherein: a fixed rod (411) and a waste shoveling plate (410) arranged on the fixed rod are arranged below the lower grooved roll (404), and shovel teeth extending into knife grooves of the lower grooved roll (404) are arranged on the waste shoveling plate (410).