A vacuum packaging machine

Abstract

The application provides a kind of vacuum packaging machine, relating to vacuum packaging technical field.The vacuum packaging machine, including packaging machine box, the center between the front and rear of the packaging machine box inner wall is fixedly connected with top center fixed strip, the packaging chamber is fixedly connected between the both sides of the packaging machine box inner wall and the top center fixed strip, the rear end of the top of the packaging machine box is fixedly connected with fixed pivot, the sealing cover is rotatably connected on two fixed pivots, the front end of two sealing covers is equipped with extrusion fixing mechanism, and the bottom of two sealing covers is fixedly connected with sealing ring.The sliding U-shaped plate in the extrusion fixing mechanism is designed, the fixing of packaging bag is completed when the sealing cover is closed, and the packaging bag will not move when the air is extracted, and the sliding U-shaped plate is slid, the fixing of packaging bag is completed according to the size of packaging bag, and the application range of the device is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vacuum packaging, in particular to a vacuum packaging machine. BACKGROUND

[0002] The vacuum packaging machine can automatically extract the air in the packaging bag, complete the sealing process after reaching the predetermined vacuum degree, and then fill in nitrogen or other mixed gas, and then complete the sealing process. The vacuum packaging machine is often used in the food industry because the food can be oxidized after vacuum packaging, thereby achieving the purpose of long-term preservation. The main working process is as follows: the packaging bag containing food is placed in the packaging chamber, the sealing cover is closed, the vacuum pump extracts the air in the packaging chamber, then the packaging bag starts to shrink and tightly wraps the food, and finally the packaging bag is sealed by hot pressing, and the sealing cover can be opened to remove the packaged product after filling air in the packaging chamber.

[0003] The existing vacuum packaging machine is usually placed directly in the packaging chamber, and the opening of the packaging bag is placed in the hot pressing position. However, when the vacuum pump extracts the air in the chamber, the opening of the whole packaging bag will also deform, which may cause the opening of the packaging bag to be unable to accurately align with the hot pressing position and the upper and lower sides of the opening of the packaging bag to not be well adhered. In hot pressing, the sealing effect is not good, and the joints of the vacuum pump and the inflation pump are all connected to the main body in a split manner, which is more complicated to assemble, and the split connection has the risk of air leakage.

[0004] Therefore, we have developed a new kind of vacuum packaging machine. SUMMARY

[0005] (I) Technical problems solved

[0006] In view of the deficiencies of the prior art, the present application provides a vacuum packaging machine, which solves the problems of the existing vacuum packaging machine that the opening of the whole packaging bag deforms when the vacuum pump extracts the air in the chamber, and the joints of the vacuum pump and the inflation pump are more complicated to assemble and have the risk of air leakage.

[0007] (II) Technical scheme

[0008] To achieve the above purpose, the present application is implemented by the following technical scheme: the present application provides a vacuum packaging machine, which comprises a packaging machine box body, a top center fixed strip fixedly connected between the centers of the front and rear inner walls of the packaging machine box body, a packaging chamber fixedly connected between the two sides of the inner wall of the packaging machine box body and the top center fixed strip, and a fixed rotating shaft fixedly connected to the rear end of the top of the packaging machine box body.

[0009] Two sealing covers are rotationally connected to the two fixed rotating shafts, front ends of the two sealing covers are respectively provided with extrusion fixing mechanisms, bottom portions of the two sealing covers are fixedly connected with sealing rings, and bottom inner surfaces of the two packaging chambers are respectively fixedly connected with mounting bases corresponding to the extrusion fixing mechanisms.

[0010] Bottom heating plates are fixedly connected to top portions of the two mounting bases, and the vacuum pump and the air pump are respectively fixedly connected to both sides of the bottom inner surface of the packaging machine box body, and a transmission mechanism is arranged between one side of the bottom portion of the two packaging chambers and the vacuum pump and the air pump.

[0011] Preferably, recesses corresponding to the packaging chambers are arranged in the top portion of the inner wall of the packaging machine box body and one side of the top portion of the central fixing strip.

[0012] The above technical solution ensures that the two packaging chambers are fixedly connected between the top portion of the packaging machine box body and the top portion of the central fixing strip.

[0013] Preferably, the extrusion fixing mechanism comprises a driving cylinder fixedly connected to the top front end of the sealing cover and two sliding U-shaped plates slidingly connected to the bottom of the sealing cover, an output end of the driving cylinder is fixedly connected with a top heating plate, and rubber pads are fixedly connected to both sides of the bottom of the top heating plate.

[0014] The above technical solution ensures that the sealing cover is opened, the packaging bag containing the quantitative food is placed in the packaging chamber, the position of the opening of the packaging bag corresponds to the top portion of the mounting base, then the sealing cover is closed and the sealing ring at the bottom of the sealing cover is clamped in the recesses in the top portion of the packaging machine box body and the top portion of the central fixing strip, at the same time of clamping, the two rubber pads and the two sides of the mounting base extrude the packaging bag together, the fixing of the packaging bag is completed, then the vacuum pump completes the air extraction in the chamber through the transmission mechanism, after a certain period of time, the air in the packaging chamber is exhausted, at the same time, the air in the packaging bag is extracted from the opening gap, the driving cylinder drives the top heating plate to descend until the top heating plate contacts the bottom heating plate and starts to heat at the same time, after the opening of the packaging bag is melted and the heating is stopped, the driving cylinder drives the top heating plate to reset, the air pump starts to fill the air in the packaging chamber, and then the sealing cover is opened to take out the packaging bag.

[0015] Preferably, a through hole corresponding to the output end of the driving cylinder is arranged in the top portion of the sealing cover.

[0016] The above technical solution ensures that the driving cylinder completes the driving of the top heating plate.

[0017] Preferably, a H-shaped recess corresponding to the sliding U-shaped plate is arranged in the bottom front end of the sealing cover.

[0018] Through the technical scheme, according to the different sizes of the packaging bag, two sliding U-shaped plates are pushed to adjust to a proper distance so that the two sliding U-shaped plates can be fixed to the two sides of the opening of the packaging bag, the fixing of the packaging bag is completed, and the discharge of the air in the packaging bag is not affected.

[0019] Preferably, the center of the top side of the packaging machine body and the top center of the top center fixing strip are both provided with a groove corresponding to the sealing ring.

[0020] Through the technical scheme, the sealing ring and the groove are clamped, and at the same time that the air in the packaging chamber is extracted by the vacuum pump, the atmospheric pressure generates pressure on the sealing cover, thereby further extruding the sealing ring and completing the sealing.

[0021] Preferably, the transmission mechanism comprises a center connecting body, the center connecting body is fixedly connected with a first connecting pipe and a second connecting pipe between the vacuum pump and the air pump, the center connecting body and the bottom side of the two packaging chambers are both fixedly connected with a chamber connecting pipe, the chamber connecting pipe is fixedly connected with an electromagnetic valve, and the top of the chamber connecting pipe is fixedly connected with a standby connecting pipe opening.

[0022] Through the technical scheme, after the sealing cover is closed and the packaging bag opening is fixed by the two sliding U-shaped plates, the electromagnetic valve on the corresponding chamber connecting pipe of the packaging chamber is opened, the vacuum pump extracts the air in the packaging chamber through the first connecting pipe, the center connecting body and the corresponding chamber connecting pipe, the vacuum pump stops working, after the sealing is completed, the air pump starts to fill the air in the packaging chamber through the second connecting pipe, the center connecting body and the corresponding chamber connecting pipe, and then the sealing cover can be opened.

[0023] Preferably, the bottom side of the two packaging chambers is provided with a through hole corresponding to the chamber connecting pipe. The through hole guarantees that the air in the packaging chamber can be extracted and discharged through the chamber connecting pipe.

[0024] Preferably, the center connecting body and the pipe openings connected with the first connecting pipe, the second connecting pipe and the two chamber connecting pipes and the standby connecting pipe opening are of an integrated structure.

[0025] Through the technical scheme, the center connecting body of the integrated structure can make the connection between the multiple pipe openings without gaps, thereby avoiding the problems of complicated assembly and air leakage.

[0026] (Three) beneficial effects

[0027] The application provides a vacuum packaging machine. The following beneficial effects are achieved:

[0028] 1. The vacuum packaging machine, through the design of the sliding U-shaped plate in the extrusion fixing mechanism, the fixing of the packaging bag is completed when the sealing cover is closed, and then the opening of the packaging bag is always extruded on the mounting bottom plate, and will not move when the air is extracted, and through the sliding sliding U-shaped plate, according to the different sizes of the packaging bag, the two sliding U-shaped plates are pushed, and the appropriate distance is adjusted so that it can be fixed to both sides of the opening of the packaging bag, the fixing of the packaging bag is completed, and the discharge of the air in the packaging bag is not affected, and the application range of the device is improved.

[0029] 2. The vacuum packaging machine, through the design of the center connecting body and the pipe openings connected with the first connecting pipe, the second connecting pipe and the two chamber connecting pipes on the side, and the spare connecting pipe opening are all integrated structure, the integrated structure of the center connecting body can make the connection between the multiple pipe openings without gap, and then avoid the problems of complicated assembly, air leakage and the like. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is a schematic diagram of the three-dimensional structure of the application;

[0031] Figure 2 It is Figure 1 the local enlarged view of A in the middle;

[0032] Figure 3 It is a schematic diagram of the transverse cross-sectional structure of the application;

[0033] Figure 4 It is Figure 3 the local enlarged view of B in the middle;

[0034] Figure 5 It is a schematic diagram of the longitudinal cross-sectional structure of the application;

[0035] Figure 6 It is Figure 5 the local enlarged view of C in the middle;

[0036] Figure 7 It is a schematic diagram of the center connecting body structure of the application.

[0037] Among them, 1, packaging machine box; 2, center fixed strip; 3, packaging chamber; 4, fixed rotating shaft; 5, sealing cover; 6, extrusion fixing mechanism; 601, driving cylinder; 602, sliding U-shaped plate; 603, top heating plate; 604, rubber pad; 7, sealing ring; 8, mounting base; 9, bottom heating plate; 10, vacuum pump; 11, air pump; 12, transmission mechanism; 1201, center connecting body; 1202, first connecting pipe; 1203, second connecting pipe; 1204, chamber connecting pipe; 1205, electromagnetic valve; 1206, spare connecting pipe opening. DETAILED DESCRIPTION

[0038] Clearly, the described embodiments are only a 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 of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0039] As shown in Figures 1-3 The embodiment of the present application provides a vacuum packaging machine, which comprises a packaging machine box body 1, a top center fixing strip 2 is fixedly connected between the centers of the front and rear inner walls of the packaging machine box body 1, packaging cavities 3 are fixedly connected between the two sides of the inner wall of the packaging machine box body 1 and the top center fixing strip 2, recesses corresponding to the packaging cavities 3 are formed on one side of the top of the inner wall of the packaging machine box body 1 and the top of the top center fixing strip 2, so that the two packaging cavities 3 are fixedly connected between the top of the packaging machine box body 1 and the top of the top center fixing strip 2, and fixed rotating shafts 4 are fixedly connected to the rear ends of the top of the packaging machine box body 1.

[0040] As shown in Figures 1-6As shown, the two fixed rotating shafts 4 are rotatably connected with sealing covers 5, the front ends of the two sealing covers 5 are provided with extrusion fixing mechanisms 6, the bottoms of the two sealing covers 5 are fixedly connected with sealing rings 7, the center of the top side edge of the packaging machine box body 1 and the top center of the top center fixed strip 2 are provided with grooves corresponding to the sealing rings 7, so that the sealing rings 7 and the grooves are clamped, at the same time, when the air in the packaging chamber 3 is extracted by the vacuum pump 10, the atmospheric pressure will generate pressure on the sealing cover 5, so as to further extrude the sealing ring 7 and complete sealing, the bottoms of the two packaging chambers 3 are fixedly connected with mounting bases 8 corresponding to the extrusion fixing mechanisms 6, the extrusion fixing mechanisms 6 include driving cylinders 601 fixedly connected to the top front ends of the sealing covers 5 and two sliding U-shaped plates 602 slidingly connected to the bottoms of the sealing covers 5, the output ends of the driving cylinders 601 are fixedly connected with top heating plates 603, the bottoms of the two sides of the top heating plates 603 are fixedly connected with rubber pads 604, the sealing cover 5 is opened, the packaging bag containing the quantitative food is placed in the packaging chamber 3, the position of the opening of the packaging bag corresponds to the top of the mounting base 8, then the sealing cover 5 is closed and the sealing ring 7 at the bottom of the sealing cover 5 is clamped with the groove at the top of the packaging machine box body 1 and the top of the top center fixed strip 2, at the same time of clamping, the two rubber pads 604 and the two sides of the mounting base 8 extrude the packaging bag together to complete the fixation of the packaging bag, then the vacuum pump 10 completes the air extraction in the room through the transmission mechanism 12, after a certain time, the air in the packaging chamber 3 is exhausted, at the same time, the air in the packaging bag is extracted from the opening gap, the driving cylinder 601 drives the top heating plate 603 to descend until it contacts the bottom heating plate 9 and starts to heat at the same time, so that the opening of the packaging bag is melted, after cooling, the driving cylinder 601 drives the top heating plate 603 to reset, the air pump 11 starts to inflate the packaging chamber 3, then the sealing cover 5 is opened to take out the packaging bag, the top of the sealing cover 5 is provided with a through hole corresponding to the output end of the driving cylinder 601, so that the driving cylinder 601 drives the top heating plate 603, the two sides of the front end of the bottom of the sealing cover 5 are provided with a square groove corresponding to the sliding U-shaped plate 602, according to the different sizes of the packaging bag, the two sliding U-shaped plates 602 are pushed and adjusted to a suitable distance so that they can be fixed to the two sides of the opening of the packaging bag, which completes the fixation of the packaging bag and does not affect the exhaust of the air in the packaging bag;

[0041] As Figures 1-7As shown, the top of each of the two mounting bases 8 is fixedly connected with a bottom heating plate 9, the inner surface of the bottom of the packaging box body 1 is fixedly connected with a vacuum pump 10 and an air pump 11 on the two sides respectively, a transmission mechanism 12 is installed between the bottom side of the two packaging chambers 3 and the vacuum pump 10 and the air pump 11, the transmission mechanism 12 comprises a center connecting body 1201, the center connecting body 1201 is fixedly connected with a first connecting pipe 1202 and a second connecting pipe 1203 between the vacuum pump 10 and the air pump 11 respectively, the center connecting body 1201 and the bottom side of the two packaging chambers 3 are fixedly connected with a chamber connecting pipe 1204 between them, the two chamber connecting pipes 1204 are fixedly connected with electromagnetic valves 1205 respectively, the top of the chamber connecting pipe 1204 is fixedly connected with a standby connecting pipe opening 1206, after completing the fixing of the packaging bag opening through the two sliding U-shaped plates 602, the corresponding electromagnetic valve 1205 on the corresponding chamber connecting pipe 1204 of the packaging chamber 3 is opened, the vacuum pump 10 draws out the air in the packaging chamber 3 through the first connecting pipe 1202, the center connecting body 1201 and the corresponding chamber connecting pipe 1204, the vacuum pump 10 stops working, after completing the sealing, the air pump 11 starts to fill air into the packaging chamber 3 through the second connecting pipe 1203, the center connecting body 1201 and the corresponding chamber connecting pipe 1204, and then the sealing cover 5 can be opened, the bottom side of the two packaging chambers 3 is provided with through holes corresponding to the chamber connecting pipes 1204, which ensures that the air in the packaging chamber 3 can be drawn out and discharged through the chamber connecting pipes 1204, the pipe openings of the center connecting body 1201 and its side edges connected with the first connecting pipe 1202, the second connecting pipe 1203 and the two chamber connecting pipes 1204 and the standby connecting pipe opening 1206 are all of an integral structure, the integral structure of the center connecting body 1201 can make the connection between the multiple pipe openings without gaps, thereby avoiding the problems of complicated assembly, air leakage and the like.

[0042] Working principle: open the sealing cover 5 to place the packaging bag containing the quantitative food in the inside of the packaging chamber 3, and make the position of the opening of the packaging bag correspond to the top of the mounting base 8, then close the sealing cover 5 and make the sealing ring 7 at the bottom of the sealing cover 5 engage with the groove at the top of the top center fixed strip 2 and the top of the packaging machine box body 1, at the same time of engagement, the two rubber pads 604 and the two sides of the mounting base 8 jointly extrude the packaging bag, thus completing the fixation of the packaging bag, then open the electromagnetic valve 1205 on the corresponding chamber connecting pipe 1204 corresponding to the packaging chamber 3, the vacuum pump 10 draws the air in the packaging chamber 3 through the first connecting pipe 1202, the center connecting body 1201 and the corresponding chamber connecting pipe 1204, after a certain time, the air in the packaging chamber 3 is exhausted, at the same time, the air in the inside of the packaging bag is drawn out from the opening gap, the driving cylinder 601 pushes the top heating plate 603 to descend until it contacts the bottom heating plate 9 and starts to heat at the same time, the opening of the packaging bag is melted, after stopping heating and cooling, the driving cylinder 601 drives the top heating plate 603 to reset, the inflation pump 11 starts to inflate the air into the packaging chamber 3 through the second connecting pipe 1203, the center connecting body 1201 and the corresponding chamber connecting pipe 1204, then the sealing cover 5 can be opened to take out the packaging bag.

[0043] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vacuum packaging machine comprising a packaging machine housing (1), characterized in that: The top center fixed strip (2) is fixedly connected between the centers of the front and rear inner walls of the packaging machine box (1), the packaging cavities (3) are fixedly connected between the two sides of the inner wall of the packaging machine box (1) and the top center fixed strip (2), and the rear ends of the top of the packaging machine box (1) are fixedly connected with the fixed rotating shafts (4). The sealing covers (5) are rotatably connected to the two fixed rotating shafts (4), the front ends of the two sealing covers (5) are provided with the extrusion fixing mechanisms (6), the extrusion fixing mechanisms (6) comprise the driving air cylinders (601) fixedly connected to the top front ends of the sealing covers (5) and the two sliding U-shaped plates (602) slidingly connected to the bottoms of the sealing covers (5), the output ends of the driving air cylinders (601) are fixedly connected with the top heating plates (603), the bottoms of the top heating plates (603) are fixedly connected with the rubber pads (604), the bottoms of the two sealing covers (5) are provided with the square recesses corresponding to the sliding U-shaped plates (602), the bottoms of the two sealing covers (5) are fixedly connected with the sealing rings (7), the top center of the top side edge of the packaging machine box (1) and the top center of the top center fixed strip (2) are provided with the recesses corresponding to the sealing rings (7), and the bottom inner surfaces of the two packaging cavities (3) are fixedly connected with the mounting bases (8) corresponding to the extrusion fixing mechanisms (6). The bottom heating plates (9) are fixedly connected to the tops of the two mounting bases (8), the two sides of the bottom inner surface of the packaging machine box (1) are respectively fixedly connected with the vacuum pump (10) and the air charging pump (11), and the transmission mechanism (12) is mounted between one side of the bottom of the two packaging cavities (3) and the vacuum pump (10) and the air charging pump (11).

2. A vacuum packaging machine according to claim 1, characterized in that: The top of the inner wall of the packaging machine box (1) and one side of the top of the top center fixed strip (2) are provided with the recesses corresponding to the packaging cavities (3).

3. A vacuum packaging machine according to claim 1, characterized in that: The top of the sealing cover (5) is provided with the through hole corresponding to the output end of the driving air cylinder (601).

4. A vacuum packaging machine according to claim 1, characterized in that: The transmission mechanism (12) comprises a center connecting body (1201), first connecting pipes (1202) and second connecting pipes (1203) are fixedly connected between the center connecting body (1201) and the vacuum pump (10) and the air charging pump (11), cavity connecting pipes (1204) are fixedly connected between the center connecting body (1201) and one side of the bottom of the two packaging cavities (3), electromagnetic valves (1205) are fixedly connected to the two cavity connecting pipes (1204), and a standby connecting pipe opening (1206) is fixedly connected to the top of the cavity connecting pipe (1204).

5. A vacuum packaging machine according to claim 4, characterized in that: One side of the bottom of the two packaging cavities (3) is provided with the through hole corresponding to the cavity connecting pipe (1204).

6. A vacuum packaging machine according to claim 4, characterized in that: The center connecting body (1201) and the pipe openings and the standby connecting pipe opening, which are connected to the first connecting pipes (1202), the second connecting pipes (1203) and the two cavity connecting pipes (1204) on the sides of the center connecting body (1201), are of an integrated structure.

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