Film breaking and welding mechanism of online winding packaging machine

By utilizing the film-cutting and welding mechanism of the online wrapping machine, and through the cooperation of power components and heating wires, the machine achieves thorough film cutting and strong welding, solving the problems of incomplete film cutting and loose wrapping in traditional wrapping machines, and improving the degree of automation and efficiency.

CN223687012UActive Publication Date: 2025-12-19QINGDAO AIXUN INTELLIGENT MANUFACTURING CO LTD
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Patent Information

Application Number
CN202520207036.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-10
Publication Date
2025-12-19
Estimated Expiration
2035-02-10

AI Technical Summary

Technical Problem

Traditional stretch wrapping machines often fail to cut the film completely, resulting in loose wrapping at the tail end, requiring manual assistance to cut, which increases costs and reduces efficiency.

Method used

The film-cutting mechanism uses a power element to drive the film-cutting head base to move, combined with an electric heating wire melting and film welding mechanism, and uses a heated metal mesh for hot melt welding. Combined with a film clamping mechanism, it achieves automatic winding and clamping, and a detection component ensures accurate film cutting and welding.

Benefits of technology

It achieves rapid and thorough film cutting, secure wrapping, prevents loosening, reduces labor costs, improves packaging efficiency, and ensures that goods are not damaged.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an online winding packaging machine film breaking and welding mechanism, and relates to the technical field of winding packaging machines, the online winding packaging machine film breaking and welding mechanism comprises a film breaking mechanism, the film breaking mechanism comprises a first base and a power element A arranged on the first base, the power element A is used for driving a film breaking head base to move, and an electric heating wire is arranged on the film breaking head base; the film welding mechanism comprises a first welding plate, a heating metal net is arranged on the first welding plate, the first welding plate is in guide fit with the film breaking head base through a hole shaft, and the first welding plate and the film breaking head base are arranged in a buffering mode through a third spring; and the film clamping mechanism comprises film clamping pliers arranged on the second base, and the film clamping pliers are driven by a power element C to clamp the winding film. Therefore, the problems existing in an existing winding packaging machine are solved, it is guaranteed that film breaking of the winding packaging machine is thorough, loosening of winding of the tail section after film breaking is prevented, winding compactness is improved, labor cost is saved, and packaging efficiency is improved.
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Description

TECHNICAL FIELD

[0001] The application relates to the technical field of winding packaging machines, in particular to a film breaking and welding mechanism of an online winding packaging machine. BACKGROUND

[0002] The winding packaging machine is an automatic packaging device, which protects the goods from damage and pollution, improves the transportation efficiency and safety, prevents the goods from being damaged during the handling process, and plays the roles of dustproof, moistureproof and clean.

[0003] The traditional winding packaging machine can automatically complete the winding of the film, and the film is broken in a pulling manner, but the film breaking is not thorough, and even personnel are needed to assist in cutting, which increases the labor cost, and the tail section after the film breaking is not tightly wound and is easy to loosen, so that adhesive tape needs to be used to tighten, and the winding packaging time is increased, and the packaging efficiency is reduced. CONTENT OF THE INVENTION

[0004] In order to solve the above problems, ensure that the film of the winding packaging machine is completely broken, prevent the tail section after the film breaking from being loosely wound, improve the winding tightness, save the labor cost, and improve the packaging efficiency, the application provides a film breaking and welding mechanism of an online winding packaging machine.

[0005] The film breaking and welding mechanism of the online winding packaging machine provided by the application adopts the following technical scheme.

[0006] The film breaking and welding mechanism of the online winding packaging machine comprises:

[0007] The film breaking mechanism comprises a first base and a power element A arranged on the first base, the power element A is used to drive the film breaking head base to move, and an electric heating wire is arranged on the film breaking head base;

[0008] The film welding mechanism comprises a first welding plate, a heating metal mesh is arranged on the first welding plate, the first welding plate is guided and matched with the film breaking head base through a hole shaft, and the first welding plate and the film breaking head base are buffered by a third spring;

[0009] A detection assembly is arranged on the film breaking head base, the detection assembly comprises a detection plate guided and matched with the film breaking head base through a hole shaft, the detection plate and the film breaking head base are buffered by a fourth spring, and a proximity switch for detecting the position of the detection plate is arranged on the film breaking head base;

[0010] The film clamping mechanism comprises a film clamping plier arranged on a second base, and the film clamping plier is clamped and wound by a power element C.

[0011] By adopting the technical scheme, the power element A can drive the film breaking head base to move, and then can drive the electric heating wire to move close to or away from the winding film, melt the winding film to achieve film breaking. The film breaking mode is simple and reliable, and the film breaking is rapid and complete. The first welding plate is arranged on the film breaking head base, and the first welding plate can be close to or away from the winding film. The winding film is welded by heating the metal mesh to ensure that the tail end of the winding film is tightly wound and prevent the winding film from loosening. The third spring is arranged to serve as a buffer to prevent damage to the goods. By arranging the detection assembly, as the film breaking head base continuously approaches the goods, the gap between the detection plate and the film breaking head base gradually decreases until the detection plate is detected by the proximity switch, and the power element A stops driving the film breaking head base to move, completing the film breaking and welding operations. The arrangement of the film clamping mechanism facilitates clamping the winding film during initial winding of the goods and after film breaking and welding. During initial winding of the goods, the winding film can be rotated with the goods to complete initial winding of the winding film. During film breaking and welding, the winding film can be clamped to prepare for winding of the next goods, which is conducive to automatic winding of the winding film.

[0012] Optionally, two tensioning plates are arranged on the film breaking head base at intervals, two ends of the electric heating wire are fixed on the two tensioning plates respectively, the tensioning plates are hinged to the film breaking head base, one end of the tensioning plate is provided with a tensioning roller, the electric heating wire is supported on the tensioning roller, and the other end of the tensioning plate is connected to the film breaking head base through a second spring.

[0013] By adopting the technical scheme, the electric heating wire is supported on the tensioning roller. Through the arrangement of the tensioning plate, the second spring can provide tension to tighten the electric heating wire and provide tensioning force to ensure the linearity of the electric heating wire and normal melting of the winding film.

[0014] Optionally, a plurality of plate holes are formed in the other end of the tensioning plate, and the second spring is connected to the plate holes.

[0015] By adopting the technical scheme, the second spring is connected to the plate holes, the connection is simple and reliable, and different plate holes can be selected to adjust the tensioning degree of the electric heating wire.

[0016] Optionally, the film welding mechanism further comprises a second welding plate, the second welding plate is hingedly arranged on the second base, and the second welding plate is driven to swing by a power element B arranged on the second base. A stripe groove is formed in the side face of the second welding plate close to the first welding plate.

[0017] By adopting the technical scheme, the second welding plate is arranged. The power element B drives the second welding plate to swing and align with the first welding plate. The winding film is clamped and welded by the first welding plate. The welding does not squeeze the goods and does not cause damage to the goods. The position of the second welding plate is fixed, and the stripe groove is formed, which is conducive to improving the welding quality. When welding is not needed, the second welding plate can be retracted to avoid interference with the winding and packaging of the goods.

[0018] Optionally, a welding plate hinge seat is arranged on the second base, one end of the second welding plate is hinged on the welding plate hinge seat, and the power element B comprises a cylinder B hinged on the second base, and a telescopic rod of the cylinder B is hinged with the second welding plate.

[0019] By adopting the technical scheme, the operation of the cylinder B can directly drive the second welding plate to swing, and the structure is simple and reliable.

[0020] Optionally, a welding film guide shaft is arranged on the first welding plate, a welding film guide hole is arranged on the film breaking head base, the welding film guide shaft is matched with the hole shaft of the welding film guide hole, and the third spring is sleeved on the welding film guide shaft.

[0021] Optionally, a detection guide shaft is arranged on the detection plate, a detection guide hole is arranged on the film breaking head base, the detection guide shaft is matched with the hole shaft of the detection guide hole, and the fourth spring is sleeved on the detection guide shaft.

[0022] Optionally, the film clamping forceps comprise a film clamping seat arranged on the second base, two clamping plates are hinged on the film clamping seat, the hinge shafts of the two clamping plates are engaged through a gear, the power element C comprises a cylinder C hinged on the second base, and a telescopic rod of the cylinder C is hinged with one clamping plate.

[0023] By adopting the technical scheme, the cylinder C drives one clamping plate to swing, the two clamping plates are engaged through the gear, the swing of the two clamping plates can be realized, the two clamping plates are clamped or opened, the flexibility is good, and the film clamping forceps operate rapidly.

[0024] Optionally, the power element A comprises a cylinder A arranged on the first base, a cover body is sleeved on the periphery of the cylinder A, and a telescopic rod of the cylinder A is connected with the cover body.

[0025] By adopting the technical scheme, the cover body can play a protection role.

[0026] Optionally, the film breaking head base is hinged with the end part of the cover body, and a first spring is arranged between the film breaking head base and the cover body.

[0027] By adopting the technical scheme, the film breaking head base is hinged with the cover body, so that the first welding plate and the detection plate have a swing activity space, and the quality of the film breaking and welding is facilitated to be ensured.

[0028] In summary, the present application at least has the following beneficial effects:

[0029] 1. The power element A of the present application can drive the film breaking head base to move, and then can drive the electric heating wire to move close to or away from the winding film, so as to melt the winding film to realize film breaking. The film breaking mode is simple and reliable, and the film breaking is rapid and complete.

[0030] 2、The first welding plate is arranged on the film breaking head base of the application, the first welding plate can be close to or away from the winding film, the winding film is heat welded through the heating of the metal net, the tail end of the winding film is ensured to be wound firmly, and the winding film is prevented from loosening. Through the arrangement of the second welding plate, the power element B drives the second welding plate to swing, aligns with the first welding plate, and clamps and welds the winding film along with the first welding plate. The welding will not squeeze the goods and will not cause damage to the goods. The position of the second welding plate is fixed, and the stripe groove is opened, which is beneficial to improve the welding quality. When welding is not needed, the second welding plate can be retracted, so as to avoid interference to the winding and packaging of the goods.

[0031] 3、Through the arrangement of the film clamping mechanism, the winding film can be clamped when the goods are initially wound and the film is broken and welded after winding, the winding film can rotate along with the goods when the goods are initially wound, the initial winding of the winding film is completed, the winding film can be clamped when the film is broken and welded, and preparation is made for the next winding of the goods, so that automatic winding of the winding film is facilitated.

[0032] 4、Through the arrangement of the detection assembly, as the film breaking head base continuously approaches the goods, the gap between the detection plate and the film breaking head base gradually becomes smaller until the detection plate is detected by the proximity switch, the power element A stops driving the film breaking head base to move, the film breaking and welding operation is completed, and the goods are prevented from being damaged.

[0033] 5、The third spring can play a buffering role and prevent the goods from being damaged. DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0035] Figure 1 It is a structure schematic view of a film breaking and welding mechanism of an online winding packaging machine (including a goods table).

[0036] Figure 2 It is a structure schematic view of a film breaking and welding mechanism of an online winding packaging machine.

[0037] Figure 3 It is Figure 2 It is a structure schematic view of a local part A in the middle.

[0038] Figure 4 It is another view structure schematic view of a film breaking and welding mechanism of an online winding packaging machine.

[0039] Figure 5 It isFigure 4 Schematic diagram of middle part B amplification structure.

[0040] Figure 6 Another perspective structure schematic diagram of the film breaking and welding mechanism of the online winding packaging machine.

[0041] Figure 7 Figure 6 Schematic diagram of middle part C amplification structure.

[0042] Figure 8 Second welding plate and film clamping mechanism structure schematic diagram.

[0043] Mark explanation: 1, first base; 2, film breaking head base; 3, air cylinder A; 4, cover; 5, first spring; 6, heating wire; 7, tensioning plate; 8, tensioning roller; 9, second spring; 10, plate hole; 11, first welding plate; 12, film welding guide shaft; 13, third spring; 14, second welding plate; 15, second base; 16, stripe groove; 17, welding plate hinged seat; 18, air cylinder B; 19, detection plate; 20, detection guide shaft; 21, fourth spring; 22, film clamping seat; 23, clamping plate; 24, gear; 25, air cylinder C; 26, goods table. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0045] The following will be described in detail with reference to the drawings in the embodiments of the present application. Figures 1 to 8 The present application will be further described in detail.

[0046] The embodiments of the present application disclose a film breaking and welding mechanism of an online winding packaging machine.

[0047] Reference Figures 1 to 8 , a film breaking and welding mechanism of an online winding packaging machine, comprising:

[0048] The film breaking mechanism comprises a first base 1 and a power element A arranged on the first base 1, and the power element A is used to drive the film breaking head base 2 to move.

[0049] The power element A comprises an air cylinder A 3 arranged on the first base 1, the air cylinder A 3 is peripherally sleeved with a cover 4, the air cylinder A 3 telescopic rod is connected with the cover 4, and the cover 4 is arranged to play a protection role.

[0050] ​The membrane breaking head base 2 is hinged to the end of the cover body 4, and first springs 5 are pre-pressed between the membrane breaking head base 2 and the cover body 4 on both sides of the hinge. The membrane breaking head base 2 is hinged to the cover body 4, so that the first welding plate 11 and the detection plate 19 have a swing activity space, which is beneficial to ensure the quality of the membrane breaking and welding. The first springs 5 are arranged to ensure the swing activity, which is beneficial to ensure the connection stability between the membrane breaking head base 2 and the cover body 4, and prevent the hinge from shaking randomly.

[0051] The membrane breaking head base 2 is hinged to the end of the cover body 4, and first springs 5 are pre-pressed between the membrane breaking head base 2 and the cover body 4 on both sides of the hinge. The membrane breaking head base 2 is hinged to the cover body 4, so that the first welding plate 11 and the detection plate 19 have a swing activity space, which is beneficial to ensure the quality of the membrane breaking and welding. The first springs 5 are arranged to ensure the swing activity, which is beneficial to ensure the connection stability between the membrane breaking head base 2 and the cover body 4, and prevent the hinge from shaking randomly.

[0052] The membrane breaking head base 2 is hinged to the end of the cover body 4, and first springs 5 are pre-pressed between the membrane breaking head base 2 and the cover body 4 on both sides of the hinge. The membrane breaking head base 2 is hinged to the cover body 4, so that the first welding plate 11 and the detection plate 19 have a swing activity space, which is beneficial to ensure the quality of the membrane breaking and welding. The first springs 5 are arranged to ensure the swing activity, which is beneficial to ensure the connection stability between the membrane breaking head base 2 and the cover body 4, and prevent the hinge from shaking randomly.

[0053] The membrane breaking head base 2 is hinged to the end of the cover body 4, and first springs 5 are pre-pressed between the membrane breaking head base 2 and the cover body 4 on both sides of the hinge. The membrane breaking head base 2 is hinged to the cover body 4, so that the first welding plate 11 and the detection plate 19 have a swing activity space, which is beneficial to ensure the quality of the membrane breaking and welding. The first springs 5 are arranged to ensure the swing activity, which is beneficial to ensure the connection stability between the membrane breaking head base 2 and the cover body 4, and prevent the hinge from shaking randomly.

[0054] The membrane breaking head base 2 is hinged to the end of the cover body 4, and first springs 5 are pre-pressed between the membrane breaking head base 2 and the cover body 4 on both sides of the hinge. The membrane breaking head base 2 is hinged to the cover body 4, so that the first welding plate 11 and the detection plate 19 have a swing activity space, which is beneficial to ensure the quality of the membrane breaking and welding. The first springs 5 are arranged to ensure the swing activity, which is beneficial to ensure the connection stability between the membrane breaking head base 2 and the cover body 4, and prevent the hinge from shaking randomly.

[0055] The membrane breaking head base 2 is hinged to the end of the cover body 4, and first springs 5 are pre-pressed between the membrane breaking head base 2 and the cover body 4 on both sides of the hinge. The membrane breaking head base 2 is hinged to the cover body 4, so that the first welding plate 11 and the detection plate 19 have a swing activity space, which is beneficial to ensure the quality of the membrane breaking and welding. The first springs 5 are arranged to ensure the swing activity, which is beneficial to ensure the connection stability between the membrane breaking head base 2 and the cover body 4, and prevent the hinge from shaking randomly.

[0056] The second base 15 is provided with a welding plate hinge seat 17, one end of the second welding plate 14 is hinged to the welding plate hinge seat 17, and the power element B comprises a cylinder B18 hinged to the second base 15, and the telescopic rod of the cylinder B18 is hinged to the second welding plate 14. The operation of the cylinder B18 can directly drive the second welding plate 14 to swing, and the structure is simple and reliable.

[0057] The film breaking head base 2 is provided with a detection assembly, the detection assembly comprises detection plates 19 which are spaced apart on one side of the first welding plate 11, the detection plates 19 are provided with detection guide shafts 20, the film breaking head base 2 is provided with detection guide holes, the detection guide shafts 20 are matched with the hole shafts of the detection guide holes, fourth springs 21 are sleeved on the detection guide shafts 20, and the detection plates 19 and the film breaking head base 2 are buffered by the fourth springs 21. The film breaking head base 2 is provided with proximity switches for detecting the positions of the detection plates 19.

[0058] The film clamping mechanism comprises film clamping pincers provided on the second base 15, and the film clamping pincers are driven to clamp the winding film by the power element C.

[0059] The film clamping pincers comprise a film clamping seat 22 provided on the second base 15, the film clamping seat 22 is hinged to two clamping plates 23, the hinge shafts of the two clamping plates 23 are meshed by a gear 24, the power element C comprises a cylinder C25 hinged to the second base 15, and the telescopic rod of the cylinder C25 is hinged to one clamping plate 23. The cylinder C25 drives one clamping plate 23 to swing, the two clamping plates 23 are meshed by the gear 24, the swinging of the two clamping plates 23 can be realized, the two clamping plates 23 can be clamped or opened, the flexibility is good, and the film clamping pincers operate rapidly.

[0060] The power element A can drive the film breaking head base 2 to move, and then can drive the electric heating wire 6 to move close to or away from the winding film, melt the winding film to realize film breaking, the film breaking mode is simple and reliable, and the film breaking is rapid and complete. The film breaking head base 2 is provided with the first welding plate 11, the first welding plate 11 can be close to or away from the winding film, the winding film is welded by heating the metal mesh, the winding of the tail end of the winding film is ensured to be firm, and the winding film is prevented from loosening. The third spring 13 is provided to play a buffering role and prevent the goods from being damaged. Through the setting of the detection assembly, as the film breaking head base 2 continuously approaches the goods, the gap between the detection plate 19 and the film breaking head base 2 gradually becomes smaller, until the proximity switch detects the detection plate 19, the power element A stops driving the film breaking head base 2 to move, and the film breaking and welding operations are completed. The setting of the film clamping mechanism facilitates clamping the winding film when the initial winding of the goods and the film breaking and welding after the winding are completed. When the initial winding of the goods is completed, the winding film can be rotated with the goods to complete the initial winding of the winding film. When the film breaking and welding are completed, the winding film is clamped, preparation for the next winding of the goods is made, and the automatic winding of the winding film is facilitated.

[0061] The second base 15 can be installed on a goods table 26, which is a rotating table for placing and rotating the goods, and the first base 1 is arranged at the periphery, and the power element A is used to drive the film breaking head base 2 to move in the direction close to or away from the goods table 26.

[0062] Working principle: initially, the wrapping film needs to be placed on the film clamping mechanism by manual operation, the film clamping mechanism clamps the wrapping film, the goods are placed on the goods table 26 and then start to rotate, after rotating for several turns, the film clamping mechanism can be loosened, the goods table 26 continues to rotate until the goods are close to the end of the packaging, the second welding plate 14 swings and stands up, the last several turns of the wrapping film are wrapped at the same time as the second welding plate 14, the goods table 26 stops rotating, the film breaking head base 2 approaches the goods, the first welding plate 11 and the detection plate 19 continuously approach until abutting against the second welding plate 14, at the same time, the film clamping mechanism operates to clamp the wrapping film, the electric heating wire 6 starts to heat and melt the wrapping film, the heating metal net on the first welding plate 11 heats and presses the wrapping film with the second welding plate 14 to melt and weld the wrapping film, after the film welding is completed, the second welding plate 14 swings and lays down to reset, the film breaking head base 2 moves away from the goods to reset, the film clamping mechanism clamps the wrapping film, and waits for the next wrapping and packaging.

[0063] In the description of the utility model, it is understood that the terms "end", "two ends", "one side", "one end", "the other end", "two sides" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In the description of the utility model, unless otherwise specified and limited, it is necessary to explain that the term "connection" should be understood broadly, for example, it can be mechanical connection or electrical connection, and can be the communication between two elements, and can be directly connected or indirectly connected through an intermediate medium. For ordinary skilled persons in the art, the specific meaning of the above-mentioned term can be understood according to the specific situation.

[0064] The above is only a preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. An online film splicing mechanism for a film wrapping machine, the mechanism comprising: The utility model provides a film cutting and welding device, which comprises a first base, a power element A arranged on the first base and used for driving a film cutting head base to move, and an electric heating wire arranged on the film cutting head base. The utility model provides a film cutting and welding device, which comprises a first base, a power element A arranged on the first base and used for driving a film cutting head base to move, and an electric heating wire arranged on the film cutting head base. The film cutting head base is provided with a detection assembly, the detection assembly comprises a detection plate which is guided by a hole shaft and arranged between the film cutting head base, the detection plate and the film cutting head base are arranged through the fourth spring buffer, and the film cutting head base is provided with a proximity switch used for detecting the position of the detection plate. The film cutting head base is provided with two tension plates which are arranged at intervals, two ends of the electric heating wire are fixed on the two tension plates respectively, the tension plates are hinged to the film cutting head base, one end of the tension plate is provided with a tension roller, the electric heating wire is supported on the tension roller, and the other end of the tension plate is connected to the film cutting head base through a second spring. The other end of the tension plate is provided with a plurality of plate holes, and the second spring is connected to the plate holes.

2. A film breaking and welding mechanism of an in-line wrapping packaging machine according to claim 1, characterized in that, The film cutting and welding device further comprises a second welding plate which is hingedly arranged on the second base and is driven to swing by a power element B arranged on the second base, and a stripe groove is arranged on one side surface of the second welding plate close to the first welding plate.

3. A film breaking and welding mechanism of an in-line wrapping packaging machine according to claim 2, characterized in that, The second base is provided with a welding plate hinge seat, one end of the second welding plate is hingedly arranged on the welding plate hinge seat, and the power element B comprises a cylinder B which is hingedly arranged on the second base, and a telescopic rod of the cylinder B is hingedly arranged on the second welding plate.

4. A film breaking and welding mechanism of an in-line wrapping packaging machine according to claim 1, characterized in that, The first welding plate is provided with a film welding guide shaft, the film cutting head base is provided with a film welding guide hole, the film welding guide shaft is matched with the hole shaft of the film welding guide hole, and the third spring is sleeved on the film welding guide shaft.

5. A film breaking and welding mechanism of an in-line wrapping packaging machine according to claim 4, characterized in that, The detection plate is provided with a detection guide shaft, the film cutting head base is provided with a detection guide hole, the detection guide shaft is matched with the hole shaft of the detection guide hole, and the fourth spring is sleeved on the detection guide shaft.

6. A film breaking and welding mechanism of an in-line wrapping packaging machine according to claim 1, characterized in that, The film clamping pincers comprise a film clamping seat arranged on the second base, two clamping plates are hingedly arranged on the film clamping seat, the hinge shafts of the two clamping plates are meshed through a gear, and the power element C comprises a cylinder C which is hingedly arranged on the second base and whose telescopic rod is hingedly arranged on one clamping plate.

7. A film breaking and welding mechanism of an in-line wrapping packaging machine according to claim 1, characterized in that, The power element A comprises a cylinder A arranged on the first base, a cover body is sleeved on the periphery of the cylinder A, and a telescopic rod of the cylinder A is connected to the cover body.

8. A film breaking and welding mechanism of an in-line wrapping packaging machine according to claim 1, characterized in that, The film cutting head base is hingedly arranged between the middle of the film cutting head base and the end of the cover body, and the first spring is arranged between the film cutting head base and the cover body.

9. A film breaking and welding mechanism of an in-line wrapping packaging machine according to claim 1, characterized in that, ​ 10. A film breaking and welding mechanism of an in-line wrapping packaging machine according to claim 9, characterized in that, ​