CN220464921U - Bag making machine - Google Patents

Abstract

The utility model discloses a bag making machine, and relates to the technical field of packaging machinery. The bag making machine comprises a film placing device, a bag forming mechanism, a longitudinal sealing device, a transverse sealing device and a film pulling device, wherein the trend of a packaging film is approximately Z-shaped, the bag forming plates are obliquely arranged, the obliquely arranged bag forming plates can lengthen the length of the bag forming plates as much as possible, and occupy less space, so that the volume of the bag making machine is reduced, on one hand, the bag forming effect of the bag making machine can be improved, on the other hand, the placement and layout of the bag making machine can be facilitated, and the bag making machine and a packaging machine such as a bag feeding machine can be conveniently matched to realize the integrated assembly of bag making and packaging.

Description

Bag making machine

Technical Field

The utility model relates to the technical field of packaging machinery, in particular to a bag making machine.

Background

Along with the continuous improvement of the living standard of people, the packaging bag becomes an indispensable packaging article in the life of people, and the whole roll of film is required to be manufactured into a single large packaging bag by bag making equipment. One part of the existing bag making process is to utilize a single roll of film to output, fold the packaging film into a bag shape through a film folder or a film folding plate, then longitudinally seal and transversely seal the packaging film, and cut the packaging film to form an independent single packaging bag, and if the packaging film is not cut, a packaging bag roll can be formed. And the other part adopts two rolls of films, one roll of film is used as an upper film, the other roll of film is used as a lower film, the upper film and the lower film are overlapped at proper positions after being respectively guided and conveyed, a plurality of bag structures are formed after the overlapped upper film and lower film are subjected to transverse and longitudinal edge sealing, and finally the bag structures are cut by a cutter to form a plurality of bag bodies.

The utility model relates to a bag making and packaging integrated machine, which is disclosed as CN218140249U and is disclosed as 2022, 12 and 27 days, and comprises a bag making machine and a bag feeding type packaging machine, wherein a bag receiving limiting mechanism is arranged between the output end of the bag making machine and a bag taking station of the bag feeding type packaging machine, and comprises a bottom plate, side baffles which are arranged on the bottom plate at adjustable intervals and a front baffle which is arranged at the front end of the bottom plate in a lifting manner according to the output direction of a single packaging bag output by the bag making machine, wherein the bottom plate is used for receiving the single packaging bag output by the bag making machine, the side baffles are used for limiting and guiding the two sides of the single packaging bag, the front baffle is used for limiting the forward punching position of the single packaging bag, and the front baffle descends away from a manual operation track area of the bag taking mechanical hand when the bag taking mechanical hand of the bag feeding type packaging machine executes the bag taking action.

Above-mentioned prior art combines bag making equipment and equipment for packing together, has formed the integrated equipment of system bag packing, has solved the wrapping bag and has had the bag storehouse to appear getting the bag failure in, the problem of bag body adhesion. The bag making structure in the existing bag making and packaging integrated equipment adopts horizontal layout for making bags, the equipment occupies large space, equipment placement and layout are not facilitated, the length of a bag former of the bag making equipment is short, and the folded packaging film is not easy to use and has poor bag forming effect.

Invention of the utility model

In order to overcome the defects and the shortcomings in the prior art, the utility model provides a bag making machine, and the utility model aims to reduce the volume and the occupied area of the bag making machine, simultaneously prolong the length of a bag former as much as possible, improve the bag forming effect, ensure the edge of a folded packaging film to be neat and ensure the good forming effect of the packaging bag. The packaging film of the bag making machine is approximately Z-shaped, wherein the bag forming plates are obliquely arranged, the obliquely arranged bag forming plates can prolong the length of the bag forming plates as much as possible, and do not occupy too large occupied space, so that the volume of the bag making machine is reduced, on one hand, the bag forming effect of the bag making machine can be improved, on the other hand, the placement and layout of the bag making machine can be facilitated, and the bag making machine and a packaging machine such as a bag feeding machine can be matched to realize the integrated assembly of bag making and packaging.

In order to solve the problems in the prior art, the utility model is realized by the following technical scheme.

The utility model provides a bag making machine, which comprises a film placing device, a bag forming mechanism, a longitudinal sealing device, a transverse sealing device and a film pulling device, wherein the bag forming mechanism is obliquely arranged between the film placing device and the transverse sealing device, a packaging film output by the film placing device is conveyed to the input end of the bag forming mechanism through the steering of a film guiding roller, the packaging film is overlapped with the packaging film at two sides of the conveying direction of the packaging film in the process of conveying the packaging film from the input end of the bag forming mechanism to the output end of the bag forming mechanism, and the longitudinal sealing device is arranged at the output end of the bag forming mechanism and seals the overlapped parts of the packaging films at two sides of the conveying direction of the packaging film to form a continuous bag body; after being sealed longitudinally by a longitudinal sealing device, the continuous bag packaging film enters a transverse sealing device through the turning and conveying of a film guide roller, and the transverse sealing device transversely seals the continuous bag packaging film along the direction perpendicular to the conveying direction of the continuous bag to form connected bags; the film pulling device and the film releasing device are matched to adjust the conveying tension of the packaging film.

Further preferably, the bag making machine further comprises a frame, the film placing device is assembled at the bottom of the frame, the transverse sealing device is assembled at the top of the frame, the input end of the bag forming mechanism is positioned at the bottom of the frame, the output end of the bag forming mechanism is positioned at the top of the frame, and the bag forming mechanism is obliquely assembled on the frame.

Still further preferably, an adjusting slide rail is arranged at the top of the frame, the transverse sealing device is in sliding fit with the adjusting slide rail, and a locking component which is locked relative to the adjusting slide rail is arranged at the bottom of the transverse sealing device.

Further preferably, the film pulling device is arranged at the output end of the transverse sealing device.

Still more preferably, the packaging bag further comprises a cutting mechanism for transversely cutting the connected bag bodies to form independent packaging bags with upper ends opened.

Still more preferably, the bag feeding mechanism is arranged below the cutting mechanism and is used for clamping the lowest bag body when the cutting mechanism transversely cuts off the connected bag bodies and outputting the packaging bag with the upper end open to the bag making machine after the cutting mechanism finishes cutting off.

Still further preferably, send bag mechanism includes and send bag drive assembly, send a bag mounting bracket, clamping jaw mounting bracket and a pair of bag clamping jaw that send, and a pair of bag clamping jaw that send sets up relatively on two support arms of clamping jaw mounting bracket, clamping jaw mounting bracket sliding fit send a bag mounting bracket, send a bag drive assembly fixed assembly on sending a bag mounting bracket, send a bag drive assembly to link to each other with the clamping jaw mounting bracket to drive clamping jaw mounting bracket reciprocating sliding on sending a bag mounting bracket.

Still more preferably, the bag feeding clamping jaw is a clamping jaw cylinder.

Further preferably, the bag forming mechanism comprises a bag forming plate, the bag forming plate is rectangular, a film folding roller for gradually folding the packaging film in half is arranged on the bag forming plate, the lower end of the bag forming plate is an input end of the bag forming mechanism, the upper end of the bag forming plate is an output end of the bag forming mechanism, and when the packaging film is conveyed along the bag forming plate, film edges at two sides of the conveying direction of the packaging film are centered and overlapped under the action of the film folding roller.

Still more preferably, the output end of the bag forming plate is provided with a rectangular extension section, and the longitudinal sealing device is correspondingly arranged on the rectangular extension section to seal the film edges of the overlapped packaging film.

Compared with the prior art, the beneficial technical effects brought by the utility model are as follows:

1. the bag forming mechanism is obliquely arranged, and under the condition that the height difference between the film placing device and the transverse sealing device is set, the obliquely arranged bag forming mechanism is beneficial to prolonging the travel of the bag forming mechanism, and the folding angle of the packaging film is increased as much as possible, so that the folding of the packaging film is smoother and more stable, the bag forming effect of the finally formed packaging bag is better, and the film edges on the two sides of the packaging film are easier to align. The packaging film of the bag making machine is approximately Z-shaped, so that the length of the bag forming plate can be prolonged as much as possible, the occupied space is not occupied, the volume of the bag making machine is reduced, on one hand, the bag forming effect of the bag making machine can be improved, on the other hand, the placement and layout of the bag making machine can be facilitated, and the bag making machine and a packaging machine such as a bag feeding machine can be matched to realize the integrated assembly of bag making and packaging.

2. The layout mode of the bag making machine is beneficial to butt joint of the bag making machine and packaging equipment such as a bag feeding packaging machine and the like. The transverse sealing device is arranged at the top of the frame, so that the connected bag bodies after transverse sealing by the transverse sealing device are located at a certain height, the subsequent cutting operation is facilitated, the packaging bag with the upper end open is formed after cutting, the packaging bag is directly abutted to the packaging machine, the packaging bag with the upper end open is fed into the packaging machine for material filling, and the integration level and the continuity of the bag making and packaging integration are improved.

3. The adjusting slide rail is arranged at the bottom of the transverse sealing device, so that the position of the transverse sealing device can be conveniently adjusted, different bag lengths can be conveniently adjusted and mastered by adjusting the position of the transverse sealing device, and the adjusting slide rail is simple in structure and convenient to adjust. Even the transverse sealing device can be connected with the linear driving motor, so that electric adjustment is realized, the bag length can be directly input into the control panel, and one-key type bag length adjustment is realized.

4. The film pulling device is arranged at the output end of the transverse sealing device, so that the tension of the film between the film pulling device and the film placing device is ensured, and the transverse sealing device has a certain Zhang Jinli when the transverse sealing device transversely seals the continuous bag bodies, and the transverse sealing effect is ensured.

5. The utility model is provided with the cutting mechanism, and can cut the connected bag bodies to form independent bag bodies with the upper ends being opened, thereby being beneficial to the formation of the independent bag bodies on one hand and the butt joint of the bag making machine and the packaging equipment on the other hand. Meanwhile, the cutting mechanism is arranged at the output end of the film pulling device, so that the tension of the film cannot be changed.

6. The utility model is also provided with the bag feeding mechanism which plays a role in transferring, and the independent packaging bag with the upper end open is input into the packaging machine so as to complete the packaging of materials, and the bag feeding mechanism realizes the integrated butt joint of bag making and packaging.

7. The bag feeding mechanism has the advantages of simple structure, stable operation, low equipment cost and convenient control, and adopts the clamping jaw cylinder as the bag feeding clamping jaw.

8. The bag forming mechanism has a larger folding angle, ensures smooth folding of the packaging film, and ensures the uniformity of alignment of film edges on two sides of the packaging film, so that the bag forming effect is ensured, and a high-quality packaging bag can be manufactured.

Drawings

FIG. 1 is a schematic perspective view of a bag machine according to the present utility model;

FIG. 2 is a schematic side view of the bag machine of the present utility model;

FIG. 3 is a schematic diagram of a front view of a bag machine according to the present utility model;

FIG. 4 is a schematic rear view of the bag machine of the present utility model;

FIG. 5 is a schematic view of the structure of a bag-in-bag forming plate of the bag making machine of the present utility model;

FIG. 6 is a schematic view of the longitudinal sealing device in the bag making machine according to the present utility model;

FIG. 7 is a schematic view of the transverse sealing device in the bag making machine according to the present utility model;

FIG. 8 is a schematic view of a film cutting device in a bag machine according to the present utility model;

FIG. 9 is a schematic view of a bag feeding mechanism in the bag making machine according to the present utility model;

FIG. 10 is a schematic view of the structure of a continuous bag;

FIG. 11 is a schematic view of the structure of the attached bag;

FIG. 12 is a schematic view of the structure of the package;

reference numerals: 1. film releasing device 2, bag forming mechanism 3, longitudinal sealing device 4, transverse sealing device 5, film pulling device 6, film guiding roller 7, continuous bag body 8, connected bag body 9, frame 10, regulating slide rail 11, locking component, 12, packaging bags, 13, a bag feeding mechanism, 14, a bag feeding driving assembly, 15, a bag feeding mounting frame, 16, a clamping jaw mounting frame, 17, a bag feeding clamping claw, 18, a bag forming plate, 19, a rectangular extension section, 20 and a cutting mechanism.

Detailed Description

The following are example embodiments of the utility model defined by the claims and their equivalents, taken in conjunction with the accompanying drawings, in which the specific details are to be regarded as illustrative only and not limiting the scope of the utility model. Accordingly, various changes and modifications to the embodiments may be made by one of ordinary skill in the art without departing from the scope and spirit of the utility model.

Example 1

As a preferred embodiment of the present utility model, referring to fig. 1 of the accompanying drawings, this embodiment discloses a bag making machine, which comprises a film placing device 1, a bag forming mechanism 2, a longitudinal sealing device 3, a transverse sealing device 4 and a film pulling device 5, wherein the bag forming mechanism 2 is obliquely arranged between the film placing device 1 and the transverse sealing device 4, a packaging film output by the film placing device 1 enters an input end of the bag forming mechanism 2 through the turning and conveying of a film guiding roller 6, the packaging films are overlapped together in a process of conveying the packaging films from the input end of the bag forming mechanism 2 to an output end of the bag forming mechanism 2, the longitudinal sealing device 3 is arranged at the output end of the bag forming mechanism 2, and a part where the packaging films at two sides in the conveying direction of the packaging film are overlapped together is sealed to form a continuous bag body 7 (referring to fig. 10); after the packaging film of the continuous bag body 7 is longitudinally sealed by the longitudinal sealing device 3, the packaging film is conveyed into the transverse sealing device 4 by the turning direction of the film guiding roller 6, and the transverse sealing device 4 transversely seals the packaging film of the continuous bag body 7 along the direction perpendicular to the conveying direction of the continuous bag body 7 to form a connected bag body 8 (refer to the figure 11); the film pulling device 5 is matched with the film releasing device 1 to adjust the conveying tension of the packaging film.

As an example of the present embodiment, the film deposition apparatus 1 is an apparatus capable of active film deposition, and the structure thereof may be a structure of the existing film deposition apparatus 1, for example, a structure shown in CN215904826U, CN207618072U, CN215904825U, CN218370828U, CN218968329U or the like. The present embodiment may be an improved structure proposed for the above-mentioned existing film deposition apparatus 1, and the specific structure of the film deposition apparatus 1 is not limited in this embodiment.

As yet another example of the present embodiment, as shown in fig. 6 and 7 of the specification, the structures of the vertical sealing device 3, the horizontal sealing device 4 and the film pulling device 5 may all be conventional structures, and the utility model point of the present application is not in the specific structures thereof, but in the layout of the respective device members, and therefore, the present embodiment does not limit the specific structures of the vertical sealing device 3, the horizontal sealing device 4 and the film pulling device 5. The longitudinal sealing device 3 may be a longitudinal sealing device 3 of a pillow type packaging machine, or a longitudinal sealing device 3 of a vertical type packaging machine. The transverse sealing device 4 of the pillow type packaging machine can be adopted, the transverse sealing device 4 of the vertical type packaging machine can be adopted, the film pulling device 5 can be a pair of film pulling rollers for pulling films, and the two pairs of film clamping rollers can alternately and reciprocally pull films, so that the implementation of the application is not affected.

As shown in fig. 2 of the specification, in this embodiment, the bag forming mechanism 2 is obliquely disposed, under the condition that the height difference between the film placing device 1 and the transverse sealing device 4 is set, the obliquely disposed bag forming mechanism 2 is favorable for prolonging the travel of the bag forming mechanism 2, and increasing the folding angle of the folding of the packaging film as much as possible, so that the folding of the packaging film is smoother and more stable, the bag forming effect of the finally formed packaging bag 12 is better, and the film edges on two sides of the packaging film are easier to align.

Example 2

As a further preferred embodiment of the present utility model, this embodiment is further elaborated on the basis of the above embodiment 1.

As an implementation manner of this embodiment, the film placing device 1 may be disposed at the top end of the frame 9, and the transverse sealing device 4 may be disposed at the bottom of the frame 9.

As a further implementation manner of this embodiment, referring to fig. 2, 3 and 4 of the specification, the bag making machine further includes a frame 9, the film placing device 1 is assembled at the bottom of the frame 9, the transverse sealing device 4 is assembled at the top of the frame 9, the input end of the bag forming mechanism 2 is located at the bottom of the frame 9, the output end of the bag forming mechanism 2 is located at the top of the frame 9, and the bag forming mechanism 2 is assembled on the frame 9 in an inclined manner. The film placing device 1 is arranged at the bottom of the frame 9, and the transverse sealing device 4 is arranged at the top of the frame 9, so that the layout mode is beneficial to butt joint of a bag making machine and packaging equipment such as a bag feeding packaging machine. The transverse sealing device 4 is arranged at the top of the frame 9, so that the connected bag body 8 after transverse sealing by the transverse sealing device 4 is located at a certain height, the subsequent cutting operation is facilitated, the packaging bag 12 with an upper end opening is formed after cutting, the packaging bag is directly in butt joint with a packaging machine, the packaging bag 12 with the upper end opening is fed into the packaging machine for material filling, and the integration level and the continuity of bag making and packaging integration are improved.

As an optimization scheme of this embodiment, as shown in fig. 7, an adjusting slide rail 10 is disposed at the top of the frame 9, the transverse sealing device 4 is slidably fitted on the adjusting slide rail 10, and a locking assembly 11 that is locked relative to the adjusting slide rail 10 is disposed at the bottom of the transverse sealing device 4. The locking assembly 11 may be a pull-out tongue, a quick lock handle, or the like.

In this optimization scheme, set up at the violently seal device 4 bottoms and adjust slide rail 10, be convenient for adjust the position of violently seal device 4, through adjusting the position of violently seal device 4 in order to adjust different bag length, the regulation and the control of the bag body length of being convenient for, adjust slide rail 10's simple structure, be convenient for adjust. Even the transverse sealing device 4 can be connected with a linear driving motor, so that electric adjustment is realized, the length of the bag can be directly input into the control panel, and one-key type bag length adjustment is realized.

Example 3

As a further preferred embodiment of the present utility model, this embodiment is further elaborated and supplemented with the technical solution of the present utility model on the basis of embodiment 1 or embodiment 2 described above.

As an implementation manner of this embodiment, the film pulling device 5 may be disposed between the transverse sealing device 4 and the longitudinal sealing device 3, and may be used for packaging the longitudinal sealing effect. However, the sealing effect of the transverse sealing device 4 cannot be ensured by such an arrangement, so that the optimal choice is to arrange the film pulling device 5 at the output end of the transverse sealing device 4 as shown in fig. 2 of the specification, so that the tightness of the packaging film passing through the bag forming mechanism 2, the longitudinal sealing device 3 and the transverse sealing device 4 is kept consistent, and the bag forming, the longitudinal sealing and the transverse sealing are facilitated.

As another implementation manner of this embodiment, the film pulling device 5 is integrated with the transverse sealing device 4, and the film pulling roller is placed before the sealing knife of the transverse sealing device 4, so that the sealing effect of the transverse sealing can be ensured.

Example 4

As a further preferred embodiment of the present utility model, this embodiment is further detailed supplement and explanation of the technical solution of the present utility model on the basis of embodiment 1, embodiment 2 or embodiment 3 described above.

In this embodiment, the bag machine further includes a cutting mechanism 20 for cutting the connected bag bodies 8 laterally to form individual upper-end-opened package bags 12 (shown in fig. 12).

As an embodiment of the present embodiment, referring to fig. 2 and 8 of the specification, a cutting mechanism 20 is integrated with the film pulling device 5 to cut the connected bag body 8. That is, the cutting mechanism 20 is provided at the output end of the film pulling device 5, and cuts the connected bag body 8 output from the film pulling device 5 to form the package bag 12 with the opening upward.

As a further implementation of the present embodiment, the cutting mechanism 20 may be integrated with the transverse sealing device 4, and the cutting may be completed simultaneously with the transverse sealing, or the cutting may be performed after the transverse sealing. For example, the sealing mechanism of a preform bag packaging machine (CN 204433167U is required to finish sealing the package 12, and to cut off the excess packaging film).

As a further implementation of the present embodiment, the cutting mechanism 20 may be provided separately, and it is only necessary to control the distance between the cutting mechanism 20 and the film drawing device 5 better.

As an example, the cutting mechanism 20 may be a combination of a cutter and a blade holder, or may be a pair of cutting rollers, and the structure thereof is not limited in this embodiment.

Example 5

As a further preferred embodiment of the present utility model, this embodiment is further elaborated and supplemented with the technical solution of the present utility model on the basis of embodiment 4 described above. In this embodiment, as shown in fig. 2 and 9 of the specification, the bag making machine further includes a bag feeding mechanism 13, where the bag feeding mechanism 13 is disposed below the cutting mechanism 20, and is configured to hold the lowermost bag body when the cutting mechanism 20 cuts the connected bag body 8 laterally, and output the packaging bag 12 with an open upper end to the bag making machine after the cutting mechanism 20 completes the cutting. The bag feeding mechanism 13 plays a role in transferring, and the independent packaging bag 12 with the upper end open is input into the packaging machine so as to complete the packaging of materials, and the bag feeding mechanism 13 realizes the integrated butt joint of bag making and packaging.

As an implementation manner of this embodiment, the bag feeding mechanism 13 includes a bag feeding driving assembly 14, a bag feeding mounting frame 15, a jaw mounting frame 16 and a pair of bag feeding clamping claws 17, where the pair of bag feeding clamping claws 17 are oppositely disposed on two support arms of the jaw mounting frame 16, the jaw mounting frame 16 is slidably assembled on the bag feeding mounting frame 15, the bag feeding driving assembly 14 is fixedly assembled on the bag feeding mounting frame 15, and the bag feeding driving assembly 14 is connected with the jaw mounting frame 16 and drives the jaw mounting frame 16 to slide reciprocally on the bag feeding mounting frame 15.

As an example, the bag feeding gripper 17 is a gripper cylinder. The bag feeding driving assembly 14 is an air cylinder, can be a linear driving motor, and can be driven by connecting a rotating motor with a crank connecting rod structure.

Example 6

As still another preferred embodiment of the present utility model, this embodiment is further elaborated and supplemented with the technical solution of the present utility model on the basis of the above-mentioned embodiment 1, embodiment 2, embodiment 3, embodiment 4 or embodiment 5. In this embodiment, as shown in fig. 1 of the specification, the bag forming mechanism 2 includes a bag forming plate 18, where the bag forming plate 18 is rectangular, a film folding roller for gradually folding the packaging film in half is disposed on the bag forming plate 18, the lower end of the bag forming plate 18 is an input end of the bag forming mechanism 2, the upper end of the bag forming plate 18 is an output end of the bag forming mechanism 2, and when the packaging film is conveyed along the bag forming plate 18, film edges on two sides of the conveying direction of the packaging film are centered and overlapped under the action of the film folding roller.

As yet another example of this embodiment, referring to fig. 3, 4 and 5 of the specification, the bag forming mechanism 2 includes a bag forming plate 18, the bag forming plate 18 is trapezoidal, a film folding roller for gradually folding the packaging film in half is provided on the bag forming plate 18, the wider end of the bag forming plate 18 is the input end of the bag forming mechanism 2, the narrower end of the bag forming plate 18 is the output end of the bag forming mechanism 2, and when the packaging film is conveyed along the bag forming plate 18, the film edges on two sides of the conveying direction of the packaging film are centered and overlapped under the action of the film folding roller.

As an implementation manner of this embodiment, the output end of the bag forming plate 18 is provided with a rectangular extension section 19, and the longitudinal sealing device 3 is correspondingly arranged on the rectangular extension section 19 to seal the film edges of the overlapped packaging films.

As an example, the rectangular extension 19 may be a part of the longitudinal sealing device 3, and referring to fig. 6 in the specification, the rectangular extension 19 is a film guiding plate placed under the longitudinal sealing device 3, and by the action of the film guiding plate, the overlapped film edges can be ensured to enter the longitudinal sealing device 3 in order, and after the longitudinal sealing is completed, the longitudinal sealing part is folded towards the bag body direction by a flanging piece on the film guiding plate.

While the present inventive concept has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present utility model as defined by the following claims.

Claims (10)

1. The utility model provides a system bag machine, includes puts membrane device (1), bag forming mechanism (2), indulges sealing device (3), violently seals device (4) and draws membrane device (5), its characterized in that: the packaging film conveying device is characterized in that the bag forming mechanism (2) is obliquely arranged between the film placing device (1) and the transverse sealing device (4), packaging films output by the film placing device (1) are conveyed to the input end of the bag forming mechanism (2) through the turning of the film guiding roller (6), packaging films are overlapped together in the process of conveying the packaging films from the input end of the bag forming mechanism (2) to the output end of the bag forming mechanism (2), the longitudinal sealing device (3) is arranged at the output end of the bag forming mechanism (2), and the overlapped parts of the packaging films at the two sides of the conveying direction of the packaging films are sealed to form a continuous bag body (7); after being longitudinally sealed by the longitudinal sealing device (3), the packaging film of the continuous bag body (7) enters the transverse sealing device (4) through the turning and conveying of the film guide roller (6), and the transverse sealing device (4) transversely seals the packaging film of the continuous bag body (7) along the direction perpendicular to the conveying direction of the continuous bag body (7) to form a connected bag body (8); the film pulling device (5) is matched with the film releasing device (1) to adjust the conveying tension of the packaging film.

2. A bag machine as defined in claim 1, wherein: the bag making machine further comprises a frame (9), the film placing device (1) is assembled at the bottom of the frame (9), the transverse sealing device (4) is assembled at the top of the frame (9), the input end of the bag forming mechanism (2) is located at the bottom of the frame (9), the output end of the bag forming mechanism (2) is located at the top end of the frame (9), and the bag forming mechanism (2) is obliquely assembled on the frame (9).

3. A bag machine as defined in claim 2, wherein: the top of frame (9) is provided with regulation slide rail (10), horizontal sealing device (4) sliding fit is in on adjusting slide rail (10), the bottom of horizontal sealing device (4) be provided with adjust locking subassembly (11) of slide rail (10) relative locking.

4. A bag machine according to any one of claims 1-3, wherein: the film pulling device (5) is arranged at the output end of the transverse sealing device (4).

5. A bag machine according to any one of claims 1-3, wherein: the utility model also comprises a cutting mechanism (20) for transversely cutting the connected bag bodies (8) to form the independent packaging bags (12) with the upper ends open.

6. A bag machine as defined in claim 5, wherein: the bag feeding device is characterized by further comprising a bag feeding mechanism (13), wherein the bag feeding mechanism (13) is arranged below the cutting mechanism (20) and is used for clamping the lowest bag body when the cutting mechanism (20) transversely cuts off the connected bag bodies (8) and outputting the packaging bag (12) with the upper end open to the bag making machine after the cutting mechanism (20) finishes cutting off.

7. A bag machine as defined in claim 6, wherein: the bag conveying mechanism (13) comprises a bag conveying driving assembly (14), a bag conveying installation frame (15), a clamping jaw installation frame (16) and a pair of bag conveying clamping claws (17), wherein the pair of bag conveying clamping claws (17) are oppositely arranged on two support arms of the clamping jaw installation frame (16), the clamping jaw installation frame (16) is slidably assembled on the bag conveying installation frame (15), the bag conveying driving assembly (14) is fixedly assembled on the bag conveying installation frame (15), the bag conveying driving assembly (14) is connected with the clamping jaw installation frame (16), and the clamping jaw installation frame (16) is driven to slide back and forth on the bag conveying installation frame (15).

8. A bag machine as defined in claim 7, wherein: the bag feeding clamping claw (17) is a clamping claw cylinder.

9. A bag machine according to any one of claims 1-3, wherein: the bag forming mechanism (2) comprises a bag forming plate (18), the bag forming plate (18) is rectangular, a film folding roller for gradually folding a packaging film is arranged on the bag forming plate (18), the lower end of the bag forming plate (18) is an input end of the bag forming mechanism (2), the upper end of the bag forming plate (18) is an output end of the bag forming mechanism (2), and when the packaging film is conveyed along the bag forming plate (18), film edges on two sides of the conveying direction of the packaging film are centered and overlapped under the action of the film folding roller.

10. A bag machine as defined in claim 9, wherein: the output end of the bag forming plate (18) is provided with a rectangular extension section (19), and the longitudinal sealing device (3) is correspondingly arranged on the rectangular extension section (19) to seal the film edges of the overlapped packaging films.