CN201309611Y - Automatic continuous box-type air-adjusting packaging machine - Google Patents

Abstract

The utility model relates to a full-automatic continuous box-type modified atmosphere packaging machine, which is characterized in that the operations of vacuuming, air filling and box sealing are respectively arranged in two continuous stations to complete. The gas replacement device includes a sealed chamber connected to the cylinder shaft. A gas displacer is arranged in the sealed chamber. The gas replacement device pumps and inflates the gas replacement chamber through an external suction pipe and an inflation pipe respectively. The external inflation pipe is set on the gas On the air conditioning auxiliary device, the air conditioning auxiliary device adjusts the atmosphere in the box through the external inflation pipe, the heat sealing film guide device and the air conditioning auxiliary device are connected to the frame, and the heat sealing device is fixedly connected to the frame through connecting screws. The film cutting device and the second film cutting device are installed on the frame respectively. The utility model has high gas replacement rate and gas mixing precision, fast packaging speed, and can meet the requirements of changing the capacity of the packed product and the changing appearance of the packaging box; at the same time, it has the functions of sealing and cutting in one.

Description

Fully automatic continuous cassette modified atmosphere packaging machine

technical field

The utility model relates to a fully automatic continuous box-type modified atmosphere packaging machine, in particular to a modified atmosphere packaging machine with rapid gas replacement and functions of sealing and cutting, belonging to the technology of modified atmosphere fresh-keeping packaging machinery and equipment field.

Background technique

In the prior art, there are currently two gas replacement and operation methods for box-packed modified atmosphere packaging machines on the market: one is to place the packaging box containing the product in a closed cavity, first vacuumize it, and then fill it with pre-filled air. Configure the gas, and then seal the box. The above operation process is completed at the same station; the second is to adopt the gas flushing replacement, that is, the packaging box containing the product is placed in the working chamber, and the pre-configured gas is used to directly flush the inside of the box. Exhaust the original gas in the box, and seal the box after the gas replacement is completed. The two have their own advantages and disadvantages. The first method can obtain a higher gas replacement rate and gas mixing accuracy. However, since the three operations of vacuuming, inflation, and sealing are completed at the same station, the working cycle of the equipment is longer. , the production speed is low; the second method does not use vacuum operation, the gas replacement is faster and the productivity is higher, but the gas replacement rate and gas mixing accuracy are low, which affects the freshness of the product. In the actual production process, the disadvantages of the two methods have caused certain restrictions on the production and application of product companies.

In the prior art, there are currently two gas replacement and operation methods for box-packed modified atmosphere packaging machines on the market: one is to place the packaging box containing the product in a closed cavity, first vacuumize it, and then fill it with pre-filled air. Configure the gas, and then seal the box. The above operation process is completed at the same station; the second is to adopt the gas flushing replacement, that is, the packaging box containing the product is placed in the working chamber, and the pre-configured gas is used to directly flush the inside of the box. Exhaust the original gas in the box, and seal the box after the gas replacement is completed. The two have their own advantages and disadvantages. The first method can obtain a higher gas replacement rate and gas mixing accuracy. However, since the three operations of vacuuming, inflation, and sealing are completed at the same station, the working cycle of the equipment is longer. , the production speed is low; the second method does not use vacuum operation, the gas replacement is faster and the productivity is higher, but the gas replacement rate and gas mixing accuracy are low, which affects the freshness of the product. In the actual production process, the disadvantages of the two methods have caused certain restrictions on the production and application of product companies.

Contents of the invention

The purpose of the utility model is to overcome the above-mentioned disadvantages, thereby providing a fully automatic continuous box-type modified atmosphere packaging machine, whose vacuuming, inflation, and box sealing operations are respectively arranged on two continuous stations to complete, and the gas in the box The displacement accuracy and gas mixing accuracy are high, and the packaging speed is fast. At the same time, it can meet the requirements of changing the capacity of the packaged product and changing the appearance of the packaging box.

The main solution of the utility model is achieved in this way:

The utility model mainly adopts the connection between the box conveying mechanism and the frame, the heat sealing film conveying system is connected with the box conveying mechanism, the supporting mechanism is connected with the box conveying mechanism through a chain, and the box conveying mechanism realizes stepping motion through the chain, and the supporting mechanism follows The chain makes a step-feeding movement, which drives the box in it to move, and the bottom film is clamped by the clamping device to achieve intermittent and stable traction; the feature is that the gas replacement device includes a sealed cavity, connected with the cylinder shaft, and sealed cavity There is a gas displacer inside, and the external air extraction pipe and inflation pipe are respectively set on the gas replacement device. On the air conditioning auxiliary device, the air conditioning auxiliary device adjusts the atmosphere in the box through the external inflation pipe, the heat sealing film guide device and the air conditioning auxiliary device are connected to the frame, and the heat sealing device is fixedly connected to the frame through connecting screws. The film cutting device and the second film cutting device are installed on the frame respectively.

The heat-sealing film conveying system includes a heat-sealing film guiding device, a heat-sealing film reel, a heat-sealing film guide roller, a tolerance roller, a printing device, a first heat-sealing film width adjustment device, a second heat-sealing film width Width adjustment device and heat-sealing film; wherein the heat-sealing film reel is set on the heat-sealing film guiding device, the printing device, the first and second heat-sealing film width adjustment devices are respectively fixedly connected to the frame, and the heat-sealing film The heat-sealing film guide roller and the accommodation roller are guided to realize smooth transmission, and the heat-sealing film is wound on the heat-sealing film guide roller and the accommodation roller. The heat-sealing film guiding device adjusts the axial position of the roll heat-sealing film, which is convenient for centering and conveying. At the same time, the heat-sealing film realizes the precise printing of the upper film pattern through the way of color mark positioning.

The gas displacing device includes a gas displacer, a guide roller support plate, a heat-sealed film guide roller and an external chamber cover; the upper surface of the gas displacer is an arc surface, and three vertical guide roller support plates are installed on the two ends of the arc surface. A guide roller guides the heat-sealing film to pass smoothly; there is enough space between the outer edges of the two ends of the gas displacer and the inner edges of the two ends of the sealing chamber to facilitate the entry and exit of the heat-sealing film.

The bottom of the gas displacer is provided with a middle vent hole, an upper left vent hole and an upper right vent hole, the middle vent hole is used for vacuuming, and the left upper vent hole and the right upper vent hole are used for charging. into the protective gas.

The controlled atmosphere auxiliary device is composed of a main air passage, an air hole connected to the main air passage, a sealing plate flange and an external inflation tube. There is an air hole at one end, and the orifice is slightly inclined downward, all of which are connected to the main airway, and the main airway is connected to the protective gas source (marked at the end of the figure) through an external inflatable tube.

The heat-sealing device includes a chamber seat, an electric heating wire, a heat-sealing plate, two side-by-side thin cylinders, connecting screws, a supporting plate, and screws. The main chamber seat and the supporting plate are connected by screws, and the supporting plate Install two side-by-side thin cylinders, the shafts of the thin cylinders are fixedly connected to the heat-sealing plate by screws, and electric heating wires or electric heating tubes are installed in the heat-sealing plate, and the sealing of the heat-sealing film is realized by the timing expansion and contraction of the thin cylinders.

The heat-sealing plate is formed by connecting two parts, the first heat-sealing plate and the second heat-sealing plate.

Compared with the prior art, the utility model has the following advantages:

1. The box-type modified atmosphere packaging machine of this utility model can transport a row of three or a row of multiple conjoined packaging boxes to the gas replacement station for gas replacement. At the same time, it can also be equipped with a thermoforming box device to form a thermoforming box Modified atmosphere packaging all-in-one machine; it is also suitable for manual filling of prefabricated boxes; the specific use method can be arranged according to the specific requirements of users, and has strong applicability and versatility.

2. The box-type modified atmosphere packaging machine of this utility model combines the advantages of vacuum displacement and gas flushing displacement. By using a special gas displacement device and a modified atmosphere auxiliary device, it can pass multiple times in the continuous station within the same step time. Gas replacement can quickly and accurately obtain boxed modified atmosphere products, and the production efficiency is high.

3. The box-type modified atmosphere packaging machine of the utility model does not need to replace the gas replacement device and the modified atmosphere auxiliary device for products with different capacities. Due to the early coverage of the heat-sealing film, the pressure requirements of the protective gas in the box after the replacement chamber is opened are ensured. Therefore, it is only necessary to adjust the radial working positions of the gas replacement device and the gas-conditioning auxiliary device through the adjustment device. Wrap those products that extend beyond the top edge of the box. It is suitable for box packaging with different packaging capacities.

In addition, the tool production process requires that a programmable logic controller (PLC) and corresponding pneumatic control elements be used to realize the automatic control of the entire packaging machine, thereby realizing the continuous automatic production of the box-type modified atmosphere automatic packaging machine of the present utility model; it is a This is a box-type modified atmosphere automatic packaging machine with excellent performance and suitable for engineering production.

Description of drawings

Fig. 1 is a work flow diagram of the utility model.

Fig. 2 is a working partial schematic diagram of the utility model.

Fig. 3 is a structural diagram of the gas replacement device of the present invention.

Fig. 4 is a structural perspective view of the gas displacer of the present invention.

Fig. 5 is a structural diagram of the auxiliary device for air conditioning of the utility model.

Fig. 6 is a perspective view of the structure of the modified atmosphere auxiliary device of the present invention.

Fig. 7 is a cross-sectional view of the structure A to A of the heat-sealing device of the present invention.

Fig. 8 is a perspective view of the heat sealing plate of the heat sealing device of the present invention.

Detailed ways

Below in conjunction with accompanying drawing and concrete implementation example, the utility model is described further in detail:

The utility model is mainly composed of a heat-sealing film guiding device 1a, a heat-sealing film reel 1b, a heat-sealing film guide roller 2a, a heat-sealing film accommodation roller 2a ₁ , a printing device 3, a first heat-sealing film width adjustment device 2, Heat-sealing film 4, first heat-sealing film width adjustment device 5, thermoforming device 6, gas replacement device 7, air conditioning auxiliary device 8, heat-sealing device 9, first film cutting device 10, second film cutting device 11 , Box conveying mechanism 12, supporting mechanism 13, cylinder 14, sealing chamber 15, guide roller 16, gas displacer 17, middle vent 18, right upper vent 19, left upper vent 20, heat sealing film Guide device 21, main air channel 22, opening 23, guide roller 24, lower mold 25, box 26, clamping device 27, external chamber cover 28, base film supporting device 29, inflation connection device 30, air suction pipe 31 , inflation pipe 32, external inflation pipe 33, guide roller support plate 34, air hole 35, sealing plate flange 36, screw 37, cylinder 38, supporting plate 39, chamber cover 40, screw 41, heat sealing plate 42, first It consists of a heat-sealing plate 42a, a second heat-sealing plate 42b, a heating wire 43, a chamber seat 44, a frame 45, screws 46, and the like.

As shown in Fig. 1 and Fig. 2: the utility model mainly adopts the box conveying mechanism 12 to connect with the frame 45, the frame 45 is connected with the guide roller 24, the heat sealing film conveying system is connected with the box conveying mechanism 12, and the bottom film supporting device 29 is fixedly connected on the frame 45 and cooperates with the box conveying mechanism 12 as a support base for gas replacement after the gas replacement device 7 descends. The supporting mechanism 13 is connected with the box conveying mechanism 12 chains, and the box conveying mechanism 12 passes through The chain is used to realize the stepping movement, the supporting mechanism 13 is connected with the chain and together with the chain to perform the stepping movement, driving the box 26 in it to move, and the bottom film 25 is clamped by the clamping device 27 to realize intermittent and stable traction. The air extraction pipeline 31 and the inflation pipeline 32 are respectively arranged on the gas replacement device 7 , and the gas replacement device 7 exhausts and inflates the gas replacement chamber respectively through the air extraction pipeline 31 and the inflation pipeline 32 . The external inflatable pipeline 33 is arranged on the gas-conditioning auxiliary device 8, and the gas-conditioning auxiliary device 8 further adjusts the atmosphere in the box 26 through the external gas-inflating pipeline 33 to meet the required gas precision. The heat-sealing film guiding device 21 is installed on the frame 45 , and the heat-sealing film passes through the guiding device 21 and covers the arc surface of the atmosphere-conditioning auxiliary device 8 , and the atmosphere-conditioning auxiliary device 8 is connected to the frame 45 . The guide roller 24 is connected with the frame 45, the heat sealing device 9 is fixedly connected with the frame 45 through the connecting screw 46, and the first film cutting device 10 and the second film cutting device 11 are installed on the frame respectively.

As shown in Fig. 2, Fig. 3 and Fig. 4: the gas displacing device 7 includes a sealed chamber 15 and an external chamber cover 28, which are all connected to the cylinder 14 that can move up and down, and the sealed chamber 15 is equipped with a gas displacer 17 and guide rollers. Support plate 34, heat-sealing film guide roller 16; On the bottom of gas displacer 17, have middle exhaust hole 18, left upper exhaust hole 20 and right upper exhaust hole 19, inflation connecting device 30. The middle exhaust hole 18 is used for vacuuming, and the left upper exhaust hole 20 and the right upper exhaust hole 19 are used for charging protective gas. One end of the inflation connecting device 30 is threadedly connected with the outer chamber cover 28 and the three internal exhaust holes 18 , 19 , 20 , and the other end is connected with the external air extraction pipeline 31 and the inflation pipeline 32 . The upper surface of the gas displacer 17 is an arc surface, and three guide rollers 16 are installed on the vertical guide roller support plate 34 at both ends of the arc surface to guide the heat-sealing film to pass smoothly thereon. There is enough space between the outer edges of both ends of the gas displacer 17 and the inner edges of the sealed cavity 15 to facilitate the entry and exit of the heat-sealing film.

As shown in Figure 1: the heat-sealing film delivery system includes a heat-sealing film guiding device 1a, a heat-sealing film reel 1b, a heat-sealing film guide roller 2a, a heat-sealing film accommodation roller 2a ₁ , a printing device 3, a A heat-sealing film width adjustment device 2, a first heat-sealing film width adjustment device 5 and a heat-sealing film 4; wherein the heat-sealing film reel 1b is set on the heat-sealing film guiding device 1a, the printing device 3, the first, The second heat-sealing film width adjustment device 2,5 is fixedly connected on the frame 45, and the heat-sealing film 4 is wound on the heat-sealing film guide roller 2a and the accommodation roller _2a1 , and the heat-sealing film guide roller 2a is fixedly connected on the On the frame 45, the accommodation roller 2a ₁ is connected to the heat-sealing film guide roller 2a spring, and the heat-sealing film 4 is smoothly conveyed through the guidance of the heat-sealing film guide roller 2a and the accommodation roller 2a ₁ , and the heat-sealing film guiding device 1a To adjust the axial position of the reel heat-sealing film, which is convenient for centering and conveying. At the same time, the heat-sealing film can be accurately printed on the film pattern by means of color mark positioning.

As shown in Fig. 2, Fig. 5, and Fig. 6: the described auxiliary air conditioning device 8 is composed of the main air passage 22, the air hole 35 connected to the main air passage 22, the sealing plate flange 36 and the external inflation pipe 33, and its surface It is a circular arc surface, one end of which is hollowed out and the end is open. The end surface of the sealing plate flange 36, the heat sealing film 4 and the guide roller 24 together form the opening 23 for the discharge of the protective gas in the box. The other end has an air hole 35, the orifice is slightly inclined downwards, and all communicate with the main air channel 22, and the main air channel 22 is connected with the protective gas source (the last drawing in the figure) through the external inflation tube 33.

As shown in Figure 7 and Figure 8: the heat sealing device 9 includes an external chamber cover 40, a chamber seat 44, a heating wire 43, a heat sealing plate 42, a frame 45, two side-by-side thin cylinders 38, screws 41, bearings Supporting plate 39, screw 37, its main body chamber seat 44 and supporting plate 39 both are connected by screw 37, external chamber cover 40 is connected with supporting plate 39, is sleeved with spring on screw 37, is installed on supporting plate 39 Two side-by-side thin cylinders 38, the shafts of the thin cylinders 38 are fixedly connected to the heat-sealing plate 42 through screws 41, and electric heating wires or electric heating tubes 43 are installed in the heat-sealing plate 42, and the sealing of the heat-sealing film is realized through the timing expansion and contraction of the thin cylinders. combine. The heat-sealing plate 42 is formed by connecting two parts, the first heat-sealing plate 42a and the second heat-sealing plate 42b.

Working principle and working process of the utility model:

The working process of the utility model is shown in Figure 1. The reel heat-sealing film is installed on the sleeve of the unwinding device with axial adjustment, and the axial position of the film on the package can be adjusted through the axial adjustment knob. Let the roller _2a1 eliminate the influence of inertia on the feeding of the packaging heat-sealing film 4 . In order to facilitate the smooth printing of the heat-sealing film at the printing station (printing device) 3, and then pass through a series of guide rollers 2a, the first heat-sealing film width adjustment device 2, and the first heat-sealing film width adjustment device 5, Ensure that the heat-sealing film 4 is accurately covered on the corresponding position of the box 26 before entering the gas replacement device 7 .

In the utility model, the molding of the box 26 is completed by the thermoforming device 6 at the station a, and the product is filled at the station b, which can be filled mechanically or manually according to requirements. The box is initially covered with the heat-sealing film at station c. Driven by the stepping motor, the box conveying mechanism 12 connected with the chain makes a stepping movement, and at the same time drives the box 26 filled with products in the mold cavity. Move, adopt the lower mold 25 two ends of thermoforming box device to be clamped with clip 27, realize the traction of base film intermittently and steadily.

After the box enters the gas replacement station d, the cylinder 14 moves downward, and the sealed cavity 15 and the bottom film supporting device 29 form a closed space, wherein the heat-sealing film 4 covers the semicircular surface of the gas replacement device. Three guide rollers 16, in order to reduce the friction between the printed heat-sealing film 4 and the arc surface, damage the printed content, and reduce the friction of transmission at the same time, so that the transmission of the heat-sealing film is more convenient. Afterwards, the modified atmosphere replacement device 7 starts to operate, and the air pumping pipeline 31 is first connected to the vacuum pump to evacuate the confined space, and then, about one second after the vacuuming, the inflating pipeline 32 is connected to the protective gas source to realize the The airtight space is filled with protective gas. At this time, the pumping and inflation processes are carried out at the same time. When the two are carried out at the same time for about one second, the pumping pipe 31 is closed to stop vacuuming, but the inflation process still continues. When the gas in the airtight space After the pressure is slightly greater than the external atmospheric pressure, the inflatable pipe 32 is closed to stop inflating the confined space. Then, the sealed chamber 15 moves upwards under the drive of the cylinder 14, and the gas replacement mold is opened, while the chain drives the box conveying mechanism 12 to step into a station. And because the gas pressure in the box is higher than the atmospheric pressure, the gas in the closed space and the box is slightly discharged outwards, and the external gas cannot enter the box in a short time of a stepping action. Next, the heat-sealing film 4 on the arc surface of the gas replacement device 7 moves forward under the driving action, and under the guidance of the heat-sealing film adjustment device 21, it covers the arc surface of the gas-conditioning auxiliary device 8, and passes through the heat-sealing film. The effect of the sealing film adjustment device 21 and the other end guide roller 24 makes the heat sealing film close to the arc surface of the atmosphere control auxiliary device 8, and at the same time, the box enters on the station e.

In the utility model, after the box 26 enters on the station e, because the external inflation pipeline 33 is connected to the protective gas source all the time, and the air pressure is slightly greater than the atmospheric pressure. At the same time, the opening of the series of air holes 35 is slightly downward, so that the protective gas is always sent to the bottom of the box, and the gas in the box passes through the opening 23 formed by the sealing plate flange 36 of the auxiliary device 8 and the heat sealing film 4 exclude outward. The time is the time required for one step. Therefore, at this station e, the gas in the box is further replaced by gas, which further improves the accuracy of gas replacement in the box, so that it can meet the accuracy requirements required by the design.

In the structural cross-sectional view of the heat-sealing device 9 of the modified atmosphere automatic packaging machine of the present invention, the heat-sealing plate 42 is driven to move up and down by two side-by-side thin cylinders 38 to realize the heat-sealing process. Its main body is the chamber seat 44 and the supporting plate 39, and the material can be an aluminum alloy casting, so as to ensure that a certain pre-pressure is given to the bottom box during the sealing and pressing process, so that the force of the cylinder does not directly act on the heat-sealing plate 42 , so that the heat-sealing plate 42 has a certain buffer. Two side-by-side thin cylinders 38 are driving devices for heat sealing. The cylinder shafts are connected together with the heat-sealing plate 42 by screws 41. A large number of electric heating wires or electric heating tubes 43 are installed in the heat-sealing plate 42. 42 for heating. When the box enters the sealing stations e and f, the cylinder 38 acts simultaneously to drive the heat-sealing plate 42 to move up and down to complete the heat-sealing action, so that the upper film and the bottom box are heat-fused and pressed together.

The heat-sealing plate 42 of the utility model is divided into two parts 42a and 42b. When the packing box is located at the first heat-sealing station e (Fig. 1), the front heat-sealing plate 42a seals the heat-sealing film 4 on the top of the box. On the box, its sealing length is less than the length of the whole box, and slightly shorter than the length of the rear half part 42b. After completion, the heat-sealing plate 42 is opened, and the box steps into the next heat-sealing station f, and at this station, the latter half of the heat-sealing plate 42b completes the final sealing work.

Finally, the sealed series of packaging boxes enter the first film cutting device 10 and the second film cutting device 11 of the slitting station, and complete longitudinal cutting and cross cutting at stations f and g respectively. Finally, the series of conjoined packaging boxes Cut into independent small packaging boxes, and then send out the independent small packaging boxes at station h through the conveyor belt. In addition, the first film cutting device 10 and the second film cutting device 11 can also be integrated to form a cutting device configured with corresponding knives according to the shape of the box. The final desired box shape can be cut out at one time. At the same time, it can be equipped with the corresponding residual material collection device.

Claims (7)

1, a kind of full-automatic continuous box type gas-control packing device, adopt box conveying mechanism (12) to be connected with frame (45), the heat-sealing film transfer system is connected with box conveying mechanism (12), support mechanism (13) is connected by chain with box conveying mechanism (12), the stepping feed motion is done with chain by support mechanism (13), drive box (26) motion therein, counterdie (25) is by holding device (27) clamping; It is characterized in that: gas replacement device (7) top is connected with cylinder (14), and side is connected with gas ducting (32) with outside pump-line (31); Gas replacement device (7) is bled to the gas replacement chamber respectively by outside pump-line (31) and gas ducting (32) and is inflated, outside gas ducting (33) is arranged on the controlled atmosphere auxiliary device (8), and controlled atmosphere auxiliary device (8) is regulated the interior atmosphere of box (26) by outside gas ducting (33); Heat-sealing film guidance device (21), controlled atmosphere auxiliary device (8) are connected on the frame (45), hot sealing device (9) is captiveed joint with frame (45) by attaching screw (46), and first film cutting apparatus (10), second film cutting apparatus (11) are installed in respectively on the frame (45).

2, full-automatic continuous box type gas-control packing device according to claim 1 is characterized in that described heat-sealing film transfer system comprises heat-sealing film guiding device (1a), heat-sealing film reel (1b), heat-sealing film deflector roll (2a), tolerant roller (2a ₁), type printer (3), the first heat-sealing film wide cut setting device (2), the second heat-sealing film wide cut setting device (5) and heat-sealing film (4); Wherein heat-sealing film reel (1b) is enclosed within on the heat-sealing film guiding device (1a), type printer (3), first, second heat-sealing film wide cut setting device (2), (5) are fixedly connected on respectively on the frame (45), and heat-sealing film (4) is wound on heat-sealing film deflector roll (2a), tolerant roller (2a ₁) on.

3, full-automatic continuous box type gas-control packing device according to claim 1 is characterized in that described gas replacement device (7) disposes gas displacer (17), guide rolls support plate (34), heat-sealing film deflector roll (16) and outside cabin cover (28); Gas displacer (17) upper surface is an arc surface, and top three deflector rolls (16) of installing of guide rolls support plate (34) that the arc surface two ends are vertical leave the space between the edge in the two ends of described gas displacer (17) outer, two ends and outside cabin cover (28).

4, full-automatic continuous box type gas-control packing device according to claim 3 is characterized in that the bottom of described gas displacer (17) has intermediate exhaust hole (18), left side upper air-vent (20) and the right upper air-vent (19).

5, full-automatic continuous box type gas-control packing device according to claim 1; it is characterized in that described controlled atmosphere auxiliary device (8) is made up of main airway (22), pore (35) and outside appendix (33); controlled atmosphere auxiliary device (8) upper surface is an arc surface; inner hollow out of one end and end openings; the other end has pore (35); pore (35) aperture is downward-sloping, is communicated with main airway (22), and main airway (22) is connected with the protection source of the gas by outside appendix (33).

6, full-automatic continuous box type gas-control packing device according to claim 1, it is characterized in that described hot sealing device (9) comprises chamber seat (44), heating wire (43), heat sealing plate (42), two cylinders of existing side by side (38), attaching screw (41), supporting plate (39), screw (37), body chamber seat (44) is connected by screw (37) with supporting plate (39), supporting plate (39) is gone up two cylinders of existing side by side (38) is installed, the axle of cylinder (38) is captiveed joint with heat sealing plate (42) by screw (41), and heating wire or tubular electric heating element (43) are installed in the heat sealing plate (42).

7, full-automatic continuous box type gas-control packing device according to claim 7 is characterized in that described heat sealing plate (42) is formed by connecting by first heat sealing plate (42a) and two parts of second heat sealing plate (42b).

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