Vacuum pumping packaging machine

Abstract

The utility model discloses a vacuum pumping packaging machine, which relates to the technical field of packaging machines and particularly comprises a rack, two operating tables are arranged at the top of the rack, sealing components are arranged in inner cavities of the operating tables, a vacuum cover is arranged above the rack, and the vacuum cover is connected with the rack through a lifting translation structure. The vacuum cover comprises a cover body connected with the lifting translation structure, the top of the cover body is provided with an electric ball valve and a one-way exhaust valve, an inner cavity of the cover body is movably connected with a lifting plate, the lifting plate is connected with the top of the cover body through a first hydraulic telescopic rod, and the top of the lifting plate is provided with a vacuum pump. According to the vacuum pumping packaging machine, the volume of the vacuum pumping chamber formed between the vacuum cover and the operation table can be changed, so that when the packaging machine carries out vacuum pumping sealing on small-package products, the gas displacement is reduced, the working time of a vacuum pump is shortened, the sealing efficiency is improved, and the energy consumption of the packaging machine is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to packing machine technical field, concretely is a kind of vacuum air extraction packing machine. BACKGROUND

[0002] Vacuum air extraction packing machine can automatically extract the air in the packaging bag, complete sealing process after reaching predetermined vacuum degree. Vacuum air extraction packing machine is often used in food industry, because after vacuum packaging, food can be antioxidant, so as to achieve the purpose of long-term preservation.

[0003] In related technologies, some schemes about vacuum air extraction packing machine are disclosed, such as the authorized patent document with application number CN202321830806.4, which discloses a new type of vacuum packing machine for meat food processing, comprising: a casing, the cross section is U-shaped, the bottom is provided with a support structure, and the inner side is provided with a conveying mechanism, the conveying mechanism comprises a conveying belt, and the outer side of the conveying belt is provided with a heat sealing strip on the front and back sides; a vacuum cover is arranged above the middle part of the conveying belt in a lifting manner through a lifting mechanism, and the lifting driving mechanism is arranged on the casing, and the top of the vacuum cover is fixed with an air pump and other components. When the above-mentioned scheme is used, the lifting driving mechanism is used to control the lifting of the vacuum cover, but after vacuumizing, the inside of the vacuum cover is in a state of negative pressure, and under the action of atmospheric pressure, the lifting driving mechanism needs to exert additional power to overcome the pressure difference, which increases the energy consumption of the vacuum air extraction packing machine. The volume of the vacuum chamber of the vacuum cover is fixed, and different volumes of packaging bags occupy different spaces in the vacuum cover. Therefore, small packaging products occupy less space in the vacuum cover, so that the air pump needs to work for more time, which reduces the packaging efficiency of small packaging products. Based on this, the present application proposes a kind of vacuum air extraction packing machine. SUMMARY

[0004] The utility model provides a kind of vacuum air extraction packing machine, solve the problem that the lifting driving mechanism needs to exert additional power to overcome the pressure difference in the above background technology after vacuumizing, which increases the energy consumption of the vacuum air extraction packing machine;The volume of the vacuum chamber of the vacuum cover is fixed, and when packaging small packaging products, the air pump needs to work for more time, which reduces the packaging efficiency of small packaging products.

[0005] The utility model provides the following technical scheme: a kind of vacuum air extraction packing machine, including rack, the top of the rack is provided with two operation table, the inner chamber of the operation table is provided with sealing assembly, the top of the rack is provided with vacuum cover, the vacuum cover is connected with rack by lifting translation structure;

[0006] The vacuum cover comprises a cover body connected with the lifting and translating structure, a top of the cover body is provided with an electric ball valve and a one-way exhaust valve, an inner cavity of the cover body is movably connected with a lifting plate, the lifting plate is connected with the top of the cover body through a hydraulic telescopic rod one, a top of the lifting plate is provided with a vacuum pump, the one-way exhaust valve is connected with an air outlet end of the vacuum pump through a telescopic pipe one, an air inlet end of the vacuum pump is connected with a vacuum pipe, the other end of the vacuum pipe penetrates through the lifting plate, the electric ball valve is connected with the lifting plate through a telescopic pipe two, the other end of the telescopic pipe two penetrates through the lifting plate, and a bottom of the lifting plate is provided with a vacuum sensor.

[0007] Preferably, the bottom of the cover body is provided with a sealing sheet one, and the top and the bottom of the lifting plate are provided with sealing sheets two.

[0008] Preferably, the lifting and translating structure comprises a ball screw movably connected with a top end of the rack, a ball nut threadedly connected with the ball screw, a hydraulic telescopic rod two fixedly connected with the ball nut, and a servo motor connected with the rack, the ball screw is driven by the servo motor, the ball nut is movably connected with the rack, and an output shaft tail end of the hydraulic telescopic rod two is connected with the cover body.

[0009] Preferably, the sealing assembly comprises a hot pressing plate and a lifting frame, both sides of an inner cavity of the operation table are provided with the hot pressing plates, the hot pressing plates are located below an inner cavity of the lifting frame, the lifting frame is connected with the operation table through a hydraulic telescopic rod three, both ends of the lifting frame are movably connected with rotating rods, the other ends of the rotating rods are fixedly connected with pressing rods, both ends of the lifting frame are provided with electromagnets, and the electromagnets are magnetically attracted with the rotating rods when the electromagnets are in an electrified state.

[0010] Preferably, the rotating rods are located above the lifting frame, and a top of the lifting frame is provided with a buffer pad.

[0011] Preferably, both sides of the top end of the rack are provided with sliding grooves, inner cavities of the sliding grooves are movably connected with the ball screws, one end of the ball nut is movably connected with the inner cavities of the sliding grooves, the other end of the ball nut extends above the rack, and the hydraulic telescopic rod two is fixedly connected with the top of the other end of the ball nut.

[0012] Compared with the prior art, the vacuum air extraction packaging machine has the following beneficial effects:

[0013] 1. The volume of the vacuum extraction chamber formed between the vacuum cover and the operation table can be changed, so that when the packaging machine is used for vacuum air extraction and sealing of small packaging products, the exhaust volume is reduced, the working time of the vacuum pump is reduced, the sealing efficiency is improved, and the energy consumption of the packaging machine is reduced.

[0014] 2. The vacuum air extraction packaging machine, through the setting of the electric ball valve and the telescopic pipe two, when the electric ball valve is in the open state, the air outside can enter the vacuum chamber, the pressure in the vacuum chamber recovers, and there is no pressure difference between the vacuum chamber and the outside world, thereby avoiding the need for the lifting translation structure to consume additional energy to overcome the pressure difference when the vacuum cover is opened, reducing the energy consumption of the packaging machine. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a front view of the structure of the utility model;

[0016] Figure 2 It is a back view of the structure of the utility model;

[0017] Figure 3 It is a cross-sectional view of the structure of the utility model;

[0018] Figure 4 It is a sealing assembly view of the structure of the utility model;

[0019] Figure 5 It is a bottom view of the structure of the utility model vacuum cover;

[0020] Figure 6 It is a cross-sectional view of the structure of the utility model vacuum cover.

[0021] In the figure: 1, rack; 2, operation table; 3, hot press plate; 4, cover body; 5, chute; 6, hydraulic telescopic rod one; 7, electric ball valve; 8, one-way exhaust valve; 9, ball screw; 10, servo motor; 11, ball nut; 12, hydraulic telescopic rod two; 13, lifting plate; 14, hydraulic telescopic rod three; 15, lifting frame; 16, electromagnet; 17, rotating rod; 18, pressure rod; 19, sealing sheet one; 20, sealing sheet two; 21, vacuum sensor; 22, vacuum tube; 23, telescopic pipe two; 24, vacuum pump; 25, telescopic pipe one. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0023] The utility model provides an embodiment: please refer to Figures 1-6The utility model provides a vacuum air exhaust packaging machine, including frame 1, the top of frame 1 is provided with two operation platform 2, the inner chamber of operation platform 2 is provided with sealing assembly, and sealing assembly includes hot presser plate 3 and lifting frame 15, and both sides of the inner chamber of operation platform 2 are provided with hot presser plate 3, and hot presser plate 3 is located below the inner chamber of lifting frame 15, and the bottom of hot presser plate 3 is provided with pressure sensor in actual application, and the pressing force that sealing bag is subjected to can be detected by pressure sensor.

[0024] Lifting frame 15 is connected with operation platform 2 by hydraulic telescopic link three 14, and both ends of lifting frame 15 movably connect with rotating rod 17, and rotating rod 17 is located above lifting frame 15, and the other end of rotating rod 17 is fixedly connected with pressing rod 18, and the position of pressing rod 18 can change under external force by the setting of rotating rod 17, and when the bag mouth of packaging bag is placed on hot presser plate 3 in use, the user can rotate pressing rod 18, so that pressing rod 18 is located above the bag mouth, and the both ends of lifting frame 15 are provided with electromagnet 16, and electromagnet 16 is magnetically attracted with rotating rod 17 when electromagnet 16 is in the energized state, and at this time, lifting frame 15, rotating rod 17 and pressing rod 18 form an integral whole.

[0025] The top of lifting frame 15 is provided with buffer pad, and the material of buffer pad can be rubber, and the impact force when rotating rod 17 contacts with lifting frame 15 can be reduced by the setting of buffer pad.

[0026] The upper portion of the rack 1 is provided with a vacuum cover, the vacuum cover is connected with the rack 1 through a lifting translation structure, the lifting translation structure comprises a ball screw 9 movably connected with the top end of the rack 1, a ball nut 11 threadedly connected with the ball screw 9, a hydraulic telescopic rod two 12 fixedly connected with the ball nut 11 and a servo motor 10 connected with the rack 1, both sides of the top end of the rack 1 are provided with a sliding groove 5, the inner cavity of the sliding groove 5 is movably connected with the ball screw 9, one end of the ball nut 11 is movably connected with the inner cavity of the sliding groove 5, the other end of the ball nut 11 extends to the upper portion of the rack 1, the output shaft of the servo motor 10 is connected with one end of the ball screw 9 through a speed reducer, the ball screw 9 is driven by the servo motor 10, when the servo motor 10 drives the ball screw 9 to rotate, the ball nut 11 can move in the direction of the ball screw 9. The top of the other end of the ball nut 11 is fixedly connected with the hydraulic telescopic rod two 12, the output shaft of the hydraulic telescopic rod two 12 is connected with the vacuum cover, the vacuum cover can be moved by the hydraulic telescopic rod two 12 when the ball nut 11 moves, under the action of the hydraulic telescopic rod two 12, the height of the vacuum cover can be changed.

[0027] The vacuum cover comprises a cover body 4 connected with the lifting translation structure, the output shaft of the hydraulic telescopic rod two 12 is connected with the cover body 4, the bottom of the cover body 4 is provided with a sealing sheet one 19, the material of the sealing sheet one 19 can be rubber, the sealing sheet one 19 can increase the sealing property between the cover body 4 and the rack 1.

[0028] The top of the cover body 4 is provided with an electric ball valve 7 and a one-way exhaust valve 8, the inner cavity of the cover body 4 is movably connected with a lifting plate 13, the lifting plate 13 is connected with the top of the cover body 4 through a hydraulic telescopic rod one 6, under the action of the hydraulic telescopic rod one 6, the height of the lifting plate 13 can be changed, the top of the lifting plate 13 is provided with a vacuum pump 24, the one-way exhaust valve 8 is connected with the air outlet end of the vacuum pump 24 through an extension tube one 25, the air inlet end of the vacuum pump 24 is connected with a vacuum tube 22, the other end of the vacuum tube 22 penetrates through the lifting plate 13, when the packaging machine is used, the operation table 2 is covered by the vacuum cover, at this time, the lifting plate 13 and the operation table 2 form a vacuum chamber, the vacuum pump 24 can suck the air in the vacuum chamber, the bottom of the lifting plate 13 is provided with a vacuum sensor 21, the vacuum sensor 21 can detect the vacuum degree in the vacuum chamber, when the vacuum degree in the vacuum chamber reaches the requirement, the vacuum pump 24 stops working.

[0029] The electric ball valve 7 is connected with the lifting plate 13 through an extension tube two 23, the other end of the extension tube two 23 penetrates through the lifting plate 13, through the setting of the extension tube two 23 and the electric ball valve 7, when the electric ball valve 7 is in the open state, the air outside can enter the vacuum chamber, the pressure in the vacuum chamber recovers, there is no pressure difference between the vacuum chamber and the outside, so that when the vacuum cover is opened, the lifting translation structure does not need to consume extra energy to overcome the pressure difference, the energy consumption of the packaging machine is reduced.

[0030] From the above description, it can be seen that the cavity height formed by the lifting plate 13 and the operation table 2 can be changed as needed during use of the vacuum cover, thereby reducing the working time of the vacuum pump 24, improving the packaging efficiency of the packaging machine, and reducing energy consumption.

[0031] Both the first telescopic pipe 25 and the second telescopic pipe 23 can be high-pressure corrugated pipes.

[0032] The electrical components involved in the present application are all prior art, and those skilled in the art understand their connection methods. Those skilled in the art connect all the electrical components in the present application with their adapted power sources through wires, and select appropriate controllers according to actual conditions to meet control requirements. The specific connection and control sequence are described below, and the working order of the electrical components is completed. The detailed connection means is a known technology in the art. The working principle and process are mainly introduced below, and the electrical control is not described.

[0033] In summary: when the vacuum air packaging machine is in use, the user places the product to be sealed on the operation table 2 and places the bag opening of the product packaging bag on the hot plate 3. The pressure rod 18 is rotated until the pressure rod 18 is located above the bag opening of the packaging bag. The lifting translation structure is started, the servo motor 10 drives the ball screw 9 to rotate, the rotation of the ball screw 9 causes the ball nut 11 connected therewith to move in the direction of the ball screw 9. When the ball nut 11 moves, the vacuum cover is moved by the hydraulic telescopic rod two 12 until the vacuum cover moves to the upper side of the operation table 2. The hydraulic telescopic rod two 12 is retracted, and the vacuum cover is lowered by the hydraulic telescopic rod two 12 until the sealing piece one 19 is tightly attached to the top of the rack 1. At this time, a sealed vacuum chamber is formed between the lifting plate 13 and the operation table 2. The vacuum pump 24 is started, and the vacuum pump 24 works. The vacuum pump 24 removes the air in the vacuum chamber, and the removed air is discharged through the one-way exhaust valve 8. During the vacuumizing process, the vacuum sensor 21 detects the vacuum degree in the vacuum chamber in real time. When the vacuum degree in the vacuum chamber reaches the required value, the vacuum pump 24 stops working. The electromagnet 16 is in an energized state, the electromagnet 16 is magnetically attracted to the rotating rod 17, the position of the pressure rod 18 is fixed, the lifting frame 15 is lowered by the hydraulic telescopic rod three 14, the pressure rod 18 is lowered by the lifting frame 15, and the pressure rod 18 is pressed against the bag opening of the packaging bag. This facilitates the heat sealing of the bag opening of the packaging bag by the hot plate 3. The heat seal is opened, the electric ball valve 7 is opened, and the external air enters the vacuum chamber through the electric ball valve 7 and the second telescopic pipe 23 to balance the pressure inside and outside the vacuum chamber, which facilitates the upward movement of the vacuum cover by the hydraulic telescopic rod two 12.

[0034] The utility model uses to standard parts can be bought from market, and the special-shaped part can be ordered according to the record of specification and drawing, and the specific connecting mode of each part all adopts the conventional means such as bolt in prior art, and the machinery, parts and equipment all adopt conventional model in prior art, and this will not be described in detail, the content not being described in detail in the specification belongs to the prior art known to the person skilled in the art, although the embodiment of the utility model has been shown and described, for the ordinary skilled person in the art, it can be understood that the embodiment can be changed, modified, replaced and modified in various ways without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A vacuum packaging machine, comprising a frame (1), characterized in that: The top of the frame (1) is provided with two operating tables (2), the inner cavity of the operating table (2) is provided with a sealing assembly, and a vacuum hood is provided above the frame (1). The vacuum hood is connected to the frame (1) through a lifting and sliding structure. The vacuum hood includes a hood body (4) connected to a lifting and translating structure. An electric ball valve (7) and a one-way exhaust valve (8) are provided on the top of the hood body (4). A lifting plate (13) is movably connected to the inner cavity of the hood body (4). The lifting plate (13) is connected to the top of the hood body (4) through a hydraulic telescopic rod (6). A vacuum pump (24) is provided on the top of the lifting plate (13). The one-way exhaust valve (8) is connected to the outlet end of the vacuum pump (24) through a telescopic pipe (25). A vacuum pipe (22) is connected to the inlet end of the vacuum pump (24). The other end of the vacuum pipe (22) passes through the lifting plate (13). The electric ball valve (7) is connected to the lifting plate (13) through a telescopic pipe (23). The other end of the telescopic pipe (23) passes through the lifting plate (13). A vacuum sensor (21) is provided at the bottom of the lifting plate (13).

2. The vacuum packaging machine according to claim 1, characterized in that: The bottom of the cover (4) is provided with a sealing sheet (19), and the top and bottom of the lifting plate (13) are provided with sealing sheets (20).

3. The vacuum packaging machine according to claim 1, characterized in that: The lifting and translating structure includes a ball screw (9) movably connected to the top of the frame (1), a ball nut (11) threadedly connected to the ball screw (9), a hydraulic telescopic rod (12) fixedly connected to the ball nut (11), and a servo motor (10) connected to the frame (1). The ball screw (9) is driven by the servo motor (10). The ball nut (11) is movably connected to the frame (1). The output shaft end of the hydraulic telescopic rod (12) is connected to the cover (4).

4. A vacuum packaging machine according to claim 1, characterized in that: The sealing assembly includes a hot press plate (3) and a lifting frame (15). The hot press plate (3) is provided on both sides of the inner cavity of the operating table (2). The hot press plate (3) is located below the inner cavity of the lifting frame (15). The lifting frame (15) is connected to the operating table (2) through a hydraulic telescopic rod (14). Both ends of the lifting frame (15) are movably connected to a rotating rod (17). The other end of the rotating rod (17) is fixedly connected to a pressure rod (18). Both ends of the lifting frame (15) are provided with electromagnets (16). When the electromagnets (16) are energized, the electromagnets (16) and the rotating rods (17) are magnetically attracted.

5. A vacuum packaging machine according to claim 4, characterized in that: The rotating rod (17) is located above the lifting frame (15), and a buffer pad is provided on the top of the lifting frame (15).

6. A vacuum packaging machine according to claim 3, characterized in that: The top of the frame (1) is provided with sliding grooves (5) on both sides. The inner cavity of the sliding groove (5) is movably connected to a ball screw (9). One end of the ball nut (11) is movably connected to the inner cavity of the sliding groove (5). The other end of the ball nut (11) extends to the top of the frame (1). The second hydraulic telescopic rod (12) is fixedly connected to the top of the other end of the ball nut (11).

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