Air bubble film inflating equipment

Abstract

The utility model relates to the field of buffer air cushion inflation equipment, in particular to air bubble film inflation equipment which comprises a machine body, a material placing roller, an inflation heat-sealing assembly and a pressing assembly, the material placing roller is rotationally arranged on the machine body, a rotating piece for driving the material placing roller to rotate is arranged on the machine body, and an air bubble film material belt is wound on the material placing roller; the air inflation heat sealing assembly is used for conducting air inflation and heat sealing on the air bubble film material belt, the pressing assembly comprises a pressing plate arranged on the machine body in a sliding mode, a pressing roller parallel to the axis of the material containing roller is rotationally arranged on the pressing plate, and a pressure control piece is arranged on the machine body and used for controlling the pressure of the pressing roller on the air bubble film material belt. The air bubble film heat-sealing device has the effect of improving the heat-sealing quality of the air bubble film and the air pressure consistency in the air bubble film.

Description

TECHNICAL FIELD

[0001] The application relates to the field of buffer air cushion inflating equipment, in particular to an air bubble film inflating equipment. BACKGROUND

[0002] The air bubble film is a product formed by sucking and molding at a high temperature of about 230 DEG C with high-pressure polyethylene as a main raw material and by adding whitening agent, opening agent and other auxiliary materials. The air bubble film is a new type of plastic packaging material which is light in quality, good in transparency, nontoxic and odorless, can prevent moisture, buffer and keep warm, and is also called air bubble pad.

[0003] A safety high buffer air cushion machine is disclosed in Chinese Patent No. CN219360466U, which comprises a buffer air cushion machine body and a protective frame, two worms are rotatably installed on the top of the buffer air cushion machine body, a driven bevel gear is fixedly installed on the side of each worm which is close to each other, a circular shaft is rotatably installed on the top of the buffer air cushion machine body, a driving bevel gear is fixedly sleeved on the outer side of the circular shaft, the driving bevel gears are engaged with the driven bevel gears respectively, and a storage cylinder is rotatably installed on the front side of the buffer air cushion machine body through screws.

[0004] In the above-mentioned technology, although the protective frame plays a protective role, the air bubble film material belt wound on the storage cylinder is in a loose state during unwinding and inflating, and with the inflation and heat sealing, the air bubble film material belt is deviated at the inflation and heat sealing position, thereby affecting the air pressure of the air bubbles on the air bubble film material belt after heat sealing, and in severe cases, the sealing property of the air bubbles on the air bubble film is affected. Content of the utility model

[0005] In order to solve the problem that the loose state of the air bubble film material belt during unwinding causes the air bubble film material belt to be deviated at the heat sealing position, the application provides an air bubble film inflating equipment.

[0006] The air bubble film inflating equipment provided by the application adopts the following technical scheme:

[0007] The air bubble film inflating equipment comprises a machine body, a material placing roller, an inflating and heat sealing assembly and a pressing assembly, the material placing roller is rotatably arranged on the machine body, a rotating member for driving the material placing roller to rotate is arranged on the machine body, an air bubble film material belt is wound on the material placing roller, the inflating and heat sealing assembly is used for inflating and heat sealing the air bubble film material belt, the pressing assembly comprises a pressing plate which is slidably arranged on the machine body, a pressing roller which is parallel to the axis of the material placing roller is rotatably arranged on the pressing plate, and a pressure control member is arranged on the machine body, the pressure control member is used for controlling the pressure of the pressing roller on the air bubble film material belt.

[0008] By adopting the technical scheme, after the worker places the bubble film material belt on the material placing roller, the pressure control piece controls the pressing force of the pressing roller on the bubble film material belt, the material placing roller is driven by the rotating piece to release the bubble film material belt, the bubble film material belt maintains a certain tension during conveying, and then the inflation and heat sealing assembly inflates and heat seals the bubble film material belt, so that the possibility of deviation of the bubble film material belt at the inflation and heat sealing position is reduced, and the inflation and heat sealing effect of the bubble film material belt is improved.

[0009] Optionally, the rotating piece comprises a rotating motor and a speed reducer box arranged on the machine body, the rotating motor is electrically connected to the control system, the output shaft of the rotating motor is coaxially connected to the input end of the speed reducer box, and the material placing roller is coaxially arranged on the output end of the speed reducer box.

[0010] By adopting the technical scheme, the control system starts the rotating motor, the output shaft of the rotating motor drives the material placing roller to gradually release the bubble film material belt through the speed reducer box, and the continuity of the inflation and heat sealing process of the bubble film material belt is improved.

[0011] Optionally, the pressure control piece comprises an electric cylinder arranged on the machine body and electrically connected to the control system, a push plate is arranged on the piston rod of the electric cylinder, a guide rod is arranged on the pressing plate, the guide rod slides through the push plate, a pressure sensor electrically connected to the control system is arranged on the push plate, and a compression spring is arranged between the sensing end of the pressure sensor and the pressing plate.

[0012] By adopting the technical scheme, as the material placing roller continuously rotates and releases the material, the diameter of the bubble film material belt continuously decreases, the compression spring recovers the deformation, the pressure value of the pressure sensor becomes smaller and is fed back to the control system, the control system starts the electric cylinder, the piston rod of the electric cylinder pushes the push plate to approach the pressing plate, the compression spring is compressed, the pressure value of the pressure sensor becomes larger and is fed back to the control system, until the pressure value fed back by the pressure sensor meets the design value, the control system controls the electric cylinder to stop working, so as to ensure that the pressure value of the pressing roller on the bubble film material belt is stable, and the possibility of the bubble film material belt being in a loose state during unwinding is reduced.

[0013] Optionally, a support rod and a pressing rod parallel to the axis of the material placing roller are rotationally arranged on the machine body, and the bubble film material belt passes between the support rod and the pressing rod.

[0014] By adopting the technical scheme, the possibility of deviation of the bubble film material belt during inflation and heat sealing is further reduced.

[0015] Optionally, a friction pattern is arranged on the circumferential outer side wall of the pressing roller.

[0016] By adopting the technical scheme, the possibility of slippage between the bubble film material belt and the compression roller during unwinding is reduced, so that the possibility of loosening of the wound bubble film material belt is reduced, and the continuity of the inflation and heat sealing process is improved.

[0017] Optionally, the inflation and heat sealing assembly comprises an inflation nozzle arranged on the machine body, the machine body is rotatably provided with a compression roller, an edge sealing roller and a heat sealing roller, the machine body is provided with a heating element, the heating element is used for heating the edge sealing roller and the heat sealing roller, the compression roller is located between the inflation nozzle and the supporting rod, the edge sealing roller is located between the inflation nozzle and the heat sealing roller, the inflation nozzle has an L-shaped cross section, an L-shaped bending end of the inflation nozzle points to the heat sealing roller, the edge sealing roller is used for heat sealing the edge of the bubble film material belt, the heat sealing roller is used for heat sealing the bubbles on the bubble film material belt, and the machine body is provided with an inflation element for supplying air to the inflation nozzle.

[0018] By adopting the technical scheme, the edge of the bubble film material belt from the supporting rod is compressed by the compression roller, the L-shaped bending end of the inflation nozzle is located inside the heat sealed edge of the bubble film material belt, with the conveying of the bubble film material belt, the heated edge sealing roller heat seals the edge of the bubble film material belt, so that the part of the L-shaped bending end of the inflation nozzle towards the heat sealing roller is sealed in the bubble film material belt, and the heated heat sealing roller completely heat seals the bubble film conveying channel of the bubble film material belt at the front end together with the heat sealed edge of the bubble film material belt, so that the bubble film conveying channel at the rear end of the bubble film material belt forms an inflation channel of the inflation nozzle with the heat sealed edge of the bubble film material belt, thereby ensuring that the pressure of each inflated bubble film on the bubble film material belt is consistent.

[0019] Optionally, the heating element comprises an electric heating plate arranged on the machine body and electrically connected to the control system, and the edge sealing roller and the heat sealing roller are rotatably arranged on the electric heating plate.

[0020] By adopting the technical scheme, the worker can accurately control the temperature of the edge sealing roller and the heat sealing roller, and the quality of heat sealing of the bubble film material belt is controlled.

[0021] Optionally, the inflation element comprises a gas pump arranged on the machine body and electrically connected to the control system, and a hose is in communication between the gas pump and the inflation nozzle.

[0022] By adopting the technical scheme, the control system starts the gas pump, the gas pump provides stable air pressure to the inflation nozzle through the hose, and the consistency of the air pressure in the bubble film is improved.

[0023] Optionally, the inflation nozzle is provided with an air pressure sensor electrically connected to the control system.

[0024] By adopting the technical scheme, the consistency of the air pressure in the bubble film can be maintained, and whether the bubble film on the bubble film material belt is intact can be fed back.

[0025] To sum up, the present application has at least one of the following beneficial technical effects:

[0026] 1. After the worker places the bubble film material belt on the material placing roller, the pressure control member controls the pressing force of the pressing roller on the bubble film material belt, and as the rotating member drives the material placing roller to pay off the bubble film material belt, the bubble film material belt maintains a certain tension during conveying, and then the inflation and heat sealing assembly inflates and heat seals the bubble film material belt, thereby reducing the possibility of deviation of the bubble film material belt at the inflation and heat sealing position, and improving the inflation and heat sealing effect of the bubble film material belt;

[0027] 2. As the material placing roller continuously rotates and pays off the material, the diameter of the bubble film material belt continuously decreases, the compression spring recovers the deformation, the pressure value of the pressure sensor becomes smaller and is fed back to the control system, the control system starts the electric cylinder, the piston rod of the electric cylinder pushes the push plate to approach the pressing plate, the compression spring is compressed, the pressure value of the pressure sensor becomes larger and is fed back to the control system, until the pressure value fed back by the pressure sensor meets the design value, the control system controls the electric cylinder to stop working, thereby ensuring that the pressure value of the pressing roller on the bubble film material belt is stable, and reducing the possibility that the bubble film material belt is in a loose state when paying off;

[0028] 3. The edge of the bubble film material belt from the supporting rod is pressed by the pressing wheel, so that the L-shaped bent end of the inflation nozzle is inside the heat sealing edge of the bubble film material belt, as the bubble film material belt is conveyed, the heated edge sealing wheel heat seals the edge of the bubble film material belt, so that the L-shaped bent end of the inflation nozzle is sealed inside the bubble film material belt, and at the same time, the heated heat sealing wheel completely heat seals the bubble film gas conveying channel at the front end of the bubble film material belt together with the heat sealed edge of the bubble film material belt, so that the bubble film gas conveying channel at the rear end of the bubble film material belt forms an inflation channel of the inflation nozzle with the heat sealed edge of the bubble film material belt, thereby ensuring that the pressure of each inflated bubble film on the bubble film material belt is consistent. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is a structural schematic diagram of an embodiment of the present application.

[0030] Figure 2 is a sectional view of the present application embodiment for embodying the positional relationship of the air pump, hose and rotating motor.

[0031] Figure 3 is a partial sectional view of the present application embodiment for embodying the positional relationship of the inflation nozzle, edge sealing wheel and air pressure sensor.

[0032] Explanation of reference signs: 1, bubble film material belt; 2, machine body; 3, material placing roller; 4, inflation and heat sealing assembly; 41, inflation nozzle; 42, compression wheel; 43, edge sealing wheel; 44, heat sealing wheel; 45, heating piece; 451, electric heating plate; 46, inflation piece; 461, air pump; 462, hose; 5, compression assembly; 51, compression plate; 52, compression roller; 53, pressure control piece; 531, electric cylinder; 532, push plate; 533, guide rod; 534, pressure sensor; 535, compression spring; 6, rotating piece; 61, rotating motor; 62, speed reducer; 7, support rod; 8, compression rod; 9, friction pattern; 10, air pressure sensor; 11, protective shell. DETAILED DESCRIPTION

[0033] The following description will be made in conjunction with the accompanying drawings. Figures 1-3 The application is further described in detail.

[0034] The application discloses a bubble film inflation equipment.

[0035] Reference is made to Figure 1 A bubble film inflation equipment comprises a machine body 2, a material placing roller 3, an inflation and heat sealing assembly 4, and a compression assembly 5. The material placing roller 3 is rotationally connected to the machine body 2. The machine body 2 is provided with a rotating piece 6 for driving the material placing roller 3 to rotate. The bubble film material belt 1 is wound around the material placing roller 3. The inflation and heat sealing assembly 4 is used for inflating and heat sealing the bubble film material belt 1.

[0036] Reference is made to Figure 1 , Figure 2 and Figure 3 The rotating piece 6 comprises a rotating motor 61 and a speed reducer 62 which are bolted to the machine body 2. The rotating motor 61 is electrically connected to a control system. The output shaft of the rotating motor 61 is coaxially connected to the input end of the speed reducer 62. The material placing roller 3 is coaxially connected to the output end of the speed reducer 62. The machine body 2 is rotationally provided with a support rod 7 and a compression rod 8 which are parallel to the axis of the material placing roller 3. The bubble film material belt 1 passes between the support rod 7 and the compression rod 8.

[0037] Reference is made to Figure 1 , Figure 2 and Figure 3 The compression assembly 5 comprises a compression plate 51 which is vertically slidably arranged on the machine body 2. The compression plate 51 is rotationally connected with a compression roller 52 which is parallel to the axis of the material placing roller 3. The circumferential outer side wall of the compression roller 52 is provided with a friction pattern 9. The machine body 2 is provided with a pressure control piece 53 for controlling the pressure of the compression roller 52 on the bubble film material belt 1.

[0038] Reference is made to Figure 1 , Figure 2 and Figure 3The pressure control member 53 includes an electric cylinder 531 bolted to the body 2 and electrically connected to the control system, a push plate 532 welded to the piston rod of the electric cylinder 531, a vertical guide rod 533 welded to the pressing plate 51 and sliding through the push plate 532, a pressure sensor 534 bolted to the push plate 532 and electrically connected to the control system, and a compression spring 535 supporting the sensing end of the pressure sensor 534 and the pressing plate 51.

[0039] After the bubble film material belt 1 is placed on the material placing roller 3, the control system starts the electric cylinder 531, the piston rod of the electric cylinder 531 pushes the push plate 532 to approach the pressing plate 51, the pressing plate 51 drives the pressing roller 52 to abut against the bubble film material belt 1, as the piston rod of the electric cylinder 531 continues to drive the push plate 532 to rise, the compression spring 535 is compressed, the sensing end of the pressure sensor 534 is subjected to a larger pressure, the pressure sensor 534 feeds back the pressure value to the control system, until the designed pressure value is reached, and the control system controls the electric cylinder 531 to stop working.

[0040] The control system starts the rotating motor 61, the output shaft of the rotating motor 61 drives the material placing roller 3 to gradually unwind the bubble film material belt 1 through the speed reducer 62, the diameter of the bubble film material belt 1 gradually decreases, the compression spring 535 restores the deformation, the sensing end of the pressure sensor 534 is subjected to a smaller pressure, the pressure sensor 534 feeds back the signal to the control system, and the control system starts the electric cylinder 531 again.

[0041] The piston rod of the electric cylinder 531 pushes the push plate 532 to approach the pressing plate 51, the compression spring 535 is compressed again, at the same time, the pressure value of the pressure sensor 534 becomes larger and is fed back to the control system, until the pressure value fed back by the pressure sensor 534 meets the designed value, the control system controls the electric cylinder 531 to stop working again, as the diameter of the bubble film material belt 1 continuously decreases, the electric cylinder 531 is in continuous and repeated work, so that the bubble film material belt 1 is always subjected to dynamic pressure control.

[0042] Referring to Figure 1 , Figure 2 and Figure 3 , the inflation heat sealing assembly 4 includes an inflation nozzle 41 bolted to the body 2, the pressing wheel 42, the edge sealing wheel 43 and the heat sealing wheel 44 rotationally connected to the body 2, the heating element 45 arranged on the body 2 and used for heating the edge sealing wheel 43 and the heat sealing wheel 44, the heating element 45 including an electric heating plate 451 bolted to the body 2 and electrically connected to the control system, the edge sealing wheel 43 and the heat sealing wheel 44 both rotationally connected to the electric heating plate 451, the protective shell 11 bolted to the body 2, and the edge sealing wheel 43 and the heat sealing wheel 44 located in the protective shell 11.

[0043] Referring to Figure 1 , Figure 2 and Figure 3, the compacting wheel 42 is located between the inflation nozzle 41 and the supporting rod 7, the edge sealing wheel 43 is located between the inflation nozzle 41 and the heat sealing wheel 44, the inflation nozzle 41 is in L shape in cross section, the L shape bending end of the inflation nozzle 41 points to the heat sealing wheel 44, and the L shape bending end of the inflation nozzle 41 is bolted with the air pressure sensor 10 electrically connected to the control system.

[0044] With reference to Figure 1 , Figure 2 and Figure 3 , the edge sealing wheel 43 is used for heat sealing the edge of the bubble film material strip 1, the heat sealing wheel 44 is used for heat sealing the bubble on the bubble film material strip 1, the machine body 2 is provided with the inflation member 46 for supplying air to the inflation nozzle 41, the inflation member 46 includes the air pump 461 bolted to the machine body 2 and electrically connected to the control system, and the air pump 461 is communicated with the inflation nozzle 41 through the hose 462.

[0045] The edge of the bubble film material strip 1 from the supporting rod 7 and the pressing rod 8 is firstly compacted by the compacting wheel 42, and then the edge is compacted by the edge sealing wheel 43, at this time, the L shape bending end of the inflation nozzle 41 is inside the heat sealed edge of the bubble film material strip 1, the control system starts the electric heating plate 451 and the air pump 461, the electric heating plate 451 heats the edge sealing wheel 43 and the heat sealing wheel 44 through heat transfer, and at the same time, the air pump 461 supplies air to the inflation nozzle 41 through the hose 462.

[0046] With the conveying of the bubble film material strip 1, the edge of the bubble film material strip 1 is firstly heat sealed by the heated edge sealing wheel 43, and at the same time, the bubble film gas conveying channel of the front end of the bubble film material strip 1 is completely heat sealed together with the heat sealed edge of the bubble film material strip 1 by the heated heat sealing wheel 44, so that the bubble film on the bubble film material strip 1 is filled with gas, at this time, the gas outlet part of the L shape bending end of the inflation nozzle 41 is sealed in the bubble film material strip 1.

[0047] The bubble film gas conveying channel of the rear end of the bubble film material strip 1 and the heat sealed edge of the bubble film material strip 1 form the inflation channel of the inflation nozzle 41, the bubble film on the bubble film material strip 1 is continuously filled, at the same time, the air pressure sensor 10 feeds back the air pressure of the bubble film to the control system, with the continuous conveying of the bubble film material strip 1, the heat sealing wheel 44 continuously heat seals the bubble film on the bubble film material strip 1, so as to realize the process of inflating and heat sealing the bubble film material strip 1, and ensure that the pressure of each inflated bubble film on the bubble film material strip 1 is consistent.

[0048] The implementation principle of the air bubble film inflation equipment according to an embodiment of the present application is as follows: after the air bubble film material belt 1 is placed on the material placing roller 3, the control system starts the electric cylinder 531, the piston rod of the electric cylinder 531 pushes the push plate 532 to approach the pressing plate 51, the pressing plate 51 drives the pressing roller 52 to abut against the air bubble film material belt 1, as the piston rod of the electric cylinder 531 continues to drive the push plate 532 to rise, the compression spring 535 is compressed, the sensing end of the pressure sensor 534 is subjected to a larger pressure, the pressure sensor 534 feeds back the pressure value to the control system, until the designed pressure value is reached, and the control system controls the electric cylinder 531 to stop working.

[0049] The control system starts the rotating motor 61, the output shaft of the rotating motor 61 drives the material placing roller 3 to gradually unwind the air bubble film material belt 1 through the speed reducer 62, the diameter of the air bubble film material belt 1 gradually becomes smaller, the compression spring 535 restores the deformation, the pressure value sensed by the sensing end of the pressure sensor 534 becomes smaller, and the pressure sensor 534 feeds back the signal to the control system, and the control system starts the electric cylinder 531 again.

[0050] The piston rod of the electric cylinder 531 pushes the push plate 532 to approach the pressing plate 51, the compression spring 535 is compressed again, at the same time, the pressure value of the pressure sensor 534 becomes larger and is fed back to the control system, until the pressure value fed back by the pressure sensor 534 meets the designed value, the control system controls the electric cylinder 531 to stop working again, as the diameter of the air bubble film material belt 1 continuously becomes smaller, the electric cylinder 531 is in continuous and repeated work, so that the air bubble film material belt 1 is always subjected to dynamic pressure control.

[0051] The edges of the air bubble film material belt 1 from the supporting rod 7 and the pressing rod 8 are first pressed by the pressing wheel 42, and then the edges are pressed by the edge sealing wheel 43, at this time, the L-shaped bent end of the inflation nozzle 41 is inside the heat-sealed edge of the air bubble film material belt 1, the control system starts the electric heating plate 451 and the air pump 461, the electric heating plate 451 heats the edge sealing wheel 43 and the heat sealing wheel 44 through heat transfer, and at the same time, the air pump 461 supplies air to the inflation nozzle 41 through the hose 462.

[0052] As the air bubble film material belt 1 is conveyed, the heated edge sealing wheel 43 first heat-seals the edges of the air bubble film material belt 1, and at the same time, the heated heat sealing wheel 44 completely heat-seals the air bubble film conveying channel at the front end of the air bubble film material belt 1 together with the heat-sealed edges of the air bubble film material belt 1, so that the air bubble film in the air bubble film material belt 1 is filled with gas, at this time, the gas outlet part of the L-shaped bent end of the inflation nozzle 41 is sealed in the air bubble film material belt 1.

[0053] The air bubble film gas conveying channel at the conveying rear end of the air bubble film material belt 1 forms an air filling channel of the air filling nozzle 41 with the edge of the air bubble film material belt 1 which is heat sealed, the air bubble film on the air bubble film material belt 1 is continuously filled with air, and the air pressure sensor 10 feeds back the air pressure in the air bubble film to the control system. With the continuous conveying of the air bubble film material belt 1, the heat sealing wheel 44 continuously heat seals the air bubble film on the air bubble film material belt 1 which is inflated, so as to realize the process of air filling and heat sealing of the air bubble film material belt 1, and ensure that the pressure of each air bubble film on the air bubble film material belt 1 after being filled with air is consistent.

[0054] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, so: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A bubble film inflator apparatus, characterized by: The machine body (2) is provided with a rotating member (6) for driving the material placing roller (3) to rotate, the bubble film material belt (1) is wound on the material placing roller (3), the inflation and heat sealing assembly (4) is used for inflating and heat sealing the bubble film material belt (1), and the pressing assembly (5) comprises a pressing plate (51) slidingly arranged on the machine body (2), the pressing plate (51) is provided with a pressing roller (52) rotatingly arranged and parallel to the axis of the material placing roller (3), and the machine body (2) is provided with a pressure control member (53) for controlling the pressure of the pressing roller (52) on the bubble film material belt (1).

2. A bubble film inflator as defined in claim 1, wherein: The rotating member (6) comprises a rotating motor (61) arranged on the machine body (2) and a speed reducer (62), the rotating motor (61) is electrically connected to a control system, the output shaft of the rotating motor (61) is coaxially connected to the input end of the speed reducer (62), and the material placing roller (3) is coaxially arranged on the output end of the speed reducer (62).

3. A bubble film inflator as defined in claim 1, wherein: The pressure control member (53) comprises an electric cylinder (531) arranged on the machine body (2) and electrically connected to the control system, a push plate (532) is arranged on the piston rod of the electric cylinder (531), a guide rod (533) is arranged on the pressing plate (51), the guide rod (533) slides through the push plate (532), a pressure sensor (534) electrically connected to the control system is arranged on the push plate (532), and a compression spring (535) is arranged between the sensing end of the pressure sensor (534) and the pressing plate (51).

4. A bubble film inflator as defined in claim 3, wherein: The machine body (2) is provided with a support rod (7) and a pressing rod (8) rotatingly arranged and parallel to the axis of the material placing roller (3), and the bubble film material belt (1) passes between the support rod (7) and the pressing rod (8).

5. The bubble film inflator of claim 1, wherein: A friction pattern (9) is arranged on the circumferential outer side wall of the pressing roller (52).

6. A bubble film inflator as defined in claim 4, wherein: The inflation and heat sealing assembly (4) comprises an inflation nozzle (41) arranged on the machine body (2), a pressing wheel (42), an edge sealing wheel (43) and a heat sealing wheel (44) are rotatingly arranged on the machine body (2), a heating member (45) is arranged on the machine body (2) and used for heating the edge sealing wheel (43) and the heat sealing wheel (44), the pressing wheel (42) is located between the inflation nozzle (41) and the support rod (7), the edge sealing wheel (43) is located between the inflation nozzle (41) and the heat sealing wheel (44), the cross section of the inflation nozzle (41) is L-shaped, the L-shaped bending end of the inflation nozzle (41) points to the heat sealing wheel (44), the edge sealing wheel (43) is used for heat sealing the edge of the bubble film material belt (1), the heat sealing wheel (44) is used for heat sealing the bubbles on the bubble film material belt (1), and the machine body (2) is provided with an inflation member (46) for supplying air to the inflation nozzle (41).

7. A bubble film inflator as defined in claim 6, wherein: The heating member (45) comprises an electric heating plate (451) arranged on the machine body (2) and electrically connected to the control system, and the edge sealing wheel (43) and the heat sealing wheel (44) are both rotationally arranged on the electric heating plate (451).

8. A bubble film inflator as defined in claim 6, wherein: The inflating member (46) comprises a gas pump (461) arranged on the machine body (2) and electrically connected to the control system, and a hose (462) in communication between the gas pump (461) and the inflating nozzle (41).

9. A bubble film inflator as defined in claim 8, wherein: The inflating nozzle (41) is provided with a gas pressure sensor (10) electrically connected to the control system.

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