Vacuum sealing machine

Abstract

The utility model discloses a vacuum sealing machine, and relates to the technical field of vacuum sealing. According to the main technical scheme, the device comprises a machine base, a groove body and a machine cover, wherein an accommodating cavity is formed in the machine base; the upper end face of the machine base is provided with a heat sealing strip, a vacuumizing groove, an air hole and a sealing gasket. The vacuumizing groove is located in one side of the heat sealing strip. The sealing gasket is wound around a notch of the vacuumizing groove; the air holes are located between the inner wall of the sealing gasket and the groove wall of the vacuumizing groove and communicate with the containing cavity. The groove body is clamped in the vacuumizing groove, and a water receiving groove is formed in the upper end face of the groove body; one side of the cover is hinged to one side of the base away from the heat sealing strip. The purpose of reducing direct pollution of the liquid to the vacuumizing tank is achieved. Meanwhile, the purposes that a user can easily remove and clean the tank body after using the vacuum sealer, the problem that a vacuumizing tank of an existing vacuum sealer is difficult to clean is solved, the sanitary condition of the vacuum sealer is improved, and the service life of the vacuum sealer is prolonged are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum sealing, in particular to a vacuum sealing machine. Background Art

[0002] The vacuum sealer is a device that extracts the air from the vacuum packaging bag and seals the bag mouth by hot-melt sealing after reaching a preset vacuum degree.

[0003] A vacuum groove is provided on the base of the vacuum sealing machine. When vacuuming, the bag opening of the vacuum packaging bag or other bags is inserted into the vacuum groove. After the vacuum pump connected to the vacuum groove is started, the vacuum packaging bag is vacuumed through the vacuum groove, and finally the bag opening is heat-sealed by the heat sealing strip to complete the sealing action.

[0004] During the sealing process of the existing vacuum sealing machine, when there is liquid in the vacuum packaging bag, the liquid is easily sucked into the vacuum chamber and contaminates the vacuum chamber. The vacuum chamber is directly opened on the machine base, which is inconvenient for the user to clean the vacuum chamber later. Utility Model Content

[0005] The purpose of the utility model is to provide a vacuum sealer, which can reduce the direct contamination of the vacuum tank by liquid. At the same time, it is convenient for users to easily remove the tank body and clean it after use, thereby solving the problem that it is difficult to clean the vacuum tank of the existing vacuum sealer, and improving the sanitary conditions and service life of the vacuum sealer in this embodiment.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A vacuum sealer comprises a machine base, a tank body and a machine cover, wherein a housing cavity is arranged inside the machine base, and the housing cavity is used to place a vacuum pump; a heat sealing strip, a vacuum groove, an air hole and a sealing pad are arranged on the upper end surface of the machine base, and the vacuum groove is located on one side of the heat sealing strip; the sealing pad is arranged around the notch of the vacuum groove; the air hole is located between the inner wall of the sealing pad and the groove wall of the vacuum groove, and the air hole is communicated with the housing cavity, and the air hole is used to connect with the vacuum pump; the tank body is snapped on the vacuum groove In the empty groove, a water receiving groove is opened on the upper end surface of the groove body, and the groove of the water receiving groove is used to correspond to the bag opening of the vacuum packaging bag; one side of the machine cover is hinged to the side of the machine base away from the heat sealing strip; wherein, the machine cover rotates in the direction close to the upper end surface of the machine base, and the machine cover is used to press the vacuum packaging bag against the sealing pad and the heat sealing strip, and an airway is formed between the lower end surface of the machine cover and the upper end surface of the groove body and the inner wall of the sealing pad, and the airway is used to connect the air hole with the bag opening of the vacuum packaging bag.

[0008] A further technical solution is: a clamping plate is provided on the side wall of the water receiving trough away from the heat sealing strip; a clamping groove is provided on the side of the clamping plate close to the heat sealing strip; the clamping groove extends from the side of the clamping plate close to the heat sealing strip to the side of the clamping plate away from the heat sealing strip; and the clamping groove is used to clamp the vacuum packaging bag.

[0009] A further technical solution is: a limiting column is provided on the side wall of the vacuum groove away from the heat sealing strip; a limiting groove is provided on the outer wall of the groove body; and the groove wall of the limiting groove is attached to the side wall of the limiting column.

[0010] A further technical solution is: the air hole is opened on the limiting column; the limiting groove extends along the direction of the lower end surface of the groove body toward the upper end surface of the groove body; the bottom of the limiting groove is projected on the upper end surface of the limiting column as a projection area, and the coverage rate between the projection area and the air inlet of the air hole is less than 100%.

[0011] A further technical solution is that a gap is provided between the upper end surface of the limiting column and the bottom of the limiting groove.

[0012] A further technical solution is: a guide groove is provided on the upper end surface of the limiting column; and the guide groove is connected to the air hole.

[0013] A further technical solution is: a placement groove is provided on the upper end surface of the machine base; the placement groove is located on the side of the vacuum groove away from the heat sealing strip, and the placement groove is used to place the vacuum packaging bag to be cut; a cutting piece is provided on the upper end surface of the machine base; the cutting piece is located between the placement groove and the vacuum groove, and the cutting piece corresponds to the placement groove, and the cutting piece is used to cut the vacuum packaging bag to be cut.

[0014] A further technical solution is: the cutting piece includes a knife holder and a cutting knife; the knife holder is arranged on the upper end surface of the machine base; the knife holder is used to press the vacuum packaging bag to be cut against the upper end surface of the machine base; the upper end surface of the knife holder is provided with a slide groove; the slide groove passes through the lower end surface of the knife holder; the cutting knife is slidably arranged in the slide groove, and the cutting knife is used to cut the vacuum packaging bag to be cut.

[0015] A further technical solution is: the vacuum sealer also includes a crankshaft; one end of the crankshaft is rotatably connected to the side wall of the placement groove; the other end of the crankshaft is connected to the tool holder; there are two crankshafts, and the two crankshafts are relatively arranged on the two side walls of the placement groove; the crankshaft is used to drive the tool holder to approach or move away from the upper end surface of the machine base.

[0016] A further technical solution is: a connecting groove is opened on the side wall of the placement groove; the crankshaft is arranged in the connecting groove, and the crankshaft is rotatably connected to the groove wall of the connecting groove.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] When the liquid in the vacuum packaging bag is extracted, the liquid can flow into the water receiving groove from the bag opening of the vacuum packaging bag and be collected in the water receiving groove, thereby reducing the liquid from directly contaminating the vacuum groove. At the same time, the groove body is clamped in the vacuum groove, so that the user can easily remove the groove body and clean it after use, thereby solving the problem that the vacuum groove of the existing vacuum sealer is difficult to clean, and improving the sanitary conditions and service life of the vacuum sealer in this embodiment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the main structure of a vacuum sealing machine base when the base is not installed with a tank body in this embodiment;

[0020] Figure 2 for Figure 1 The enlarged structural diagram at A in the middle;

[0021] Figure 3 This is a schematic diagram of the main structure of a vacuum sealing machine base when the base is installed with a tank body in this embodiment;

[0022] Figure 4 This is a schematic diagram of the top view of the structure of a vacuum sealing machine when the machine base is installed with a tank body in this embodiment;

[0023] Figure 5 for Figure 4 The enlarged structural diagram at B in the middle;

[0024] Figure 6 for Figure 4 Schematic diagram of the cross-sectional structure at AA in the middle;

[0025] Figure 7 for Figure 6 The enlarged structural diagram at C in the middle;

[0026] Figure 8 This is a schematic diagram of the main structure of a tank body for a vacuum sealing machine in this embodiment;

[0027] Fig. 9 This is a schematic diagram of the main structure of a vacuum sealing machine in this embodiment;

[0028] Fig.10 This is a schematic diagram of a top view of a vacuum sealer in this embodiment;

[0029] Fig.11 for Fig.10 Schematic diagram of the cross-sectional structure at BB in the middle.

[0030] Marks and corresponding parts names in the attached drawings:

[0031] 1- base; 2- accommodating chamber; 3- heat sealing strip; 4- vacuum groove; 5- air hole; 6- sealing pad; 7- tank body; 8- water receiving tank; 9- machine cover; 10- airway; 11- card plate; 12- card slot; 13- limit column; 14- limit slot; 15- gap; 16- guide slot; 17- placement slot;

[0032] 18-cutting piece; 181-knife holder; 182-cutting knife;

[0033] 19- slide groove; 20- crankshaft; 21- connecting groove. DETAILED DESCRIPTION

[0034] The utility model will be further described below in conjunction with the accompanying drawings.

[0035] Example 1

[0036] This embodiment provides a vacuum sealer. Figure 1-Figure 11 As shown, it includes a machine base 1, a slot body 7 and a machine cover 9, wherein the machine base 1 is provided with a receiving chamber 2 inside, and the receiving chamber 2 is used to place a vacuum pump; the upper end surface of the machine base 1 is provided with a heat sealing strip 3, a vacuum groove 4, an air hole 5 and a sealing gasket 6, and the vacuum groove 4 is located on one side of the heat sealing strip 3; the sealing gasket 6 is arranged around the slot of the vacuum groove 4; the air hole 5 is located between the inner wall of the sealing gasket 6 and the slot wall of the vacuum groove 4, and the air hole 5 is communicated with the receiving chamber 2, and the air hole 5 is used to connect with the vacuum pump; the slot body 7 is snapped into the vacuum groove 4, a water receiving groove 8 is opened on the upper end surface of the groove body 7, and the notch of the water receiving groove 8 is used to correspond to the bag opening of the vacuum packaging bag; one side of the machine cover 9 is hinged to the side of the machine base 1 away from the heat sealing strip 3; wherein, the machine cover 9 rotates in the direction close to the upper end surface of the machine base 1, and the machine cover 9 is used to press the vacuum packaging bag against the sealing pad 6 and the heat sealing strip 3, and an airway 10 is formed between the lower end surface of the machine cover 9 and the upper end surface of the groove body 7 and the inner wall of the sealing pad 6, and the airway 10 is used to connect the air hole 5 with the bag opening of the vacuum packaging bag.

[0037] For example, in the implementation process, a receiving chamber 2 is provided inside the machine base 1, and the receiving chamber 2 is used to install a vacuum pump, so as to facilitate the installation of the vacuum pump in the machine base 1 by welding, screwing, etc.

[0038] A heat sealing strip 3 and a sealing gasket 6 are arranged on the upper end surface of the machine base 1 by screwing, gluing, etc. The heat sealing strip 3 is installed on one side of the upper end surface of the machine base 1, and the sealing gasket 6 is installed on the other side of the heat sealing strip 3 close to the upper end surface of the machine base 1, and the sealing gasket 6 is a closed loop structure connected end to end.

[0039] A vacuum groove 4 is provided on the upper end surface of the machine base 1 , and a notch of the vacuum groove 4 is located in the sealing gasket 6 .

[0040] An air hole 5 is opened on the upper end surface of the machine base 1, and the air hole 5 is located between the groove wall of the vacuum groove 4 and the inner wall of the sealing gasket 6. The air hole 5 extends along the upper end surface of the machine base 1 to the lower end surface of the machine base 1 to communicate with the accommodating cavity 2 inside the machine base 1, and the air outlet end of the air hole 5 is connected to the vacuum pump in the sealing cavity.

[0041] The tank body 7 is clamped in the vacuum tank 4 by means of insertion, clamping parts, etc. A water receiving tank 8 is provided at the upper end of the tank body 7.

[0042] One side of the cover 9 is rotatably connected to the other side of the base 1 by means of a hinge, an axial hole, a bearing, etc., so that the cover 9 can rotate along the rotational connection position toward or away from the upper end surface of the base 1.

[0043] When the vacuum packaging bag is evacuated, first rotate the cover 9 a certain distance away from the upper end face of the base 1, and insert the slot body 7 into the vacuum evacuation slot 4 on the base 1. Secondly, put one end of the vacuum packaging bag between the cover 9 and the base 1, and make the bag opening of the vacuum packaging bag directly above the slot opening of the receiving slot. Next, rotate the cover 9 toward the upper end face of the base 1, and make the cover 9 press the vacuum packaging bag on the upper end face of the sealing pad 6 and the upper end face of the heat sealing strip 3. At this time, a sealed airway 10 is formed on the lower end face of the cover 9, the inner wall of the sealing pad 6, and the upper end face of the slot body 7, and the airway 10 is connected to the air hole 5, the bag opening of the vacuum packaging bag, and the water receiving tank 8. Finally, start the vacuum pump in the base 1, and after reaching the preset vacuum degree, seal the bag opening of the vacuum packaging bag through the heat sealing strip 3.

[0044] On the one hand, when the liquid in the vacuum packaging bag is extracted, the liquid can flow into the water receiving groove 8 from the bag opening of the vacuum packaging bag and be collected in the water receiving groove 8, thereby reducing the liquid from directly contaminating the vacuum tank 4. On the other hand, the tank body 7 is clamped in the vacuum tank 4, so that the user can easily remove the tank body 7 and clean it after use, thereby solving the problem that it is difficult to clean the vacuum tank 4 in the existing vacuum sealer, and improving the sanitary conditions and service life of the vacuum sealer in this embodiment.

[0045] In a preferred embodiment, a sealing gasket 6 is also provided on the lower end surface of the machine cover 9, and the sealing gasket 6 provided on the lower end surface of the machine cover 9 corresponds to the sealing gasket 6 on the upper end surface of the machine base 1. The sealing gasket 6 on the lower end surface of the machine cover 9 can press the vacuum packaging bag against the sealing gasket 6 on the upper end surface of the machine base 1, and the sealing gasket 6 on the lower end surface of the machine cover 9 partially contacts the sealing gasket 6 on the upper end surface of the machine base 1, so as to achieve the purpose of optimizing the sealing performance during the vacuuming process.

[0046] Example 2

[0047] like Figure 3 Combination Figure 8 As shown, on the basis of the above-mentioned embodiment 1, in this embodiment, a clamping plate 11 is provided on the side wall of the water receiving groove 8 away from the heat sealing strip 3; a clamping groove 12 is provided on the side of the clamping plate 11 close to the heat sealing strip 3; the clamping groove 12 extends from the side of the clamping plate 11 close to the heat sealing strip 3 to the side of the clamping plate 11 away from the heat sealing strip 3; the clamping groove 12 is used to clamp the vacuum packaging bag.

[0048] Exemplarily, in the implementation process, a clamping plate 11 is provided on the side wall of the water receiving groove 8 away from the heat sealing strip 3 by welding, screwing, clamping or integral molding. A clamping groove 12 is provided on the side of the clamping plate 11 close to the heat sealing strip 3, and the clamping groove 12 extends from the side of the clamping plate 11 close to the heat sealing strip 3 to the side of the clamping plate 11 away from the heat sealing strip 3. The number of clamping plates 11 can be set to be several, and the several clamping plates 11 are evenly arranged in the direction from one end of the water receiving groove 8 to the other end of the water receiving groove 8.

[0049] During use, after placing the vacuum packaging bag between the machine cover 9 and the machine base 1, the user can gently push one end of the vacuum packaging bag into the card slot 12 to ensure that the bag opening of the vacuum packaging bag is clamped in the card slot 12. On the one hand, by clamping the bag opening of the vacuum packaging bag through the card slot 12 on the clamping plate 11, during the heat sealing process of the vacuum packaging bag, the bag opening of the vacuum packaging bag is ensured to be located in the hot water tank, so as to reduce the risk of the liquid in the vacuum packaging bag flowing out of the water tank 8. On the other hand, during use, the user only needs to simply push one end of the vacuum packaging bag into the card slot 12 to achieve fast and accurate position fixation without the need for additional complex operations, thereby improving work efficiency.

[0050] Example 3

[0051] like Figure 7 Combination Figure 8 As shown, based on the above-mentioned embodiment 1, in this embodiment, a limiting column 13 is provided on the side wall of the vacuum groove 4 away from the heat sealing strip 3; a limiting groove 14 is provided on the outer wall of the groove body 7; and the groove wall of the limiting groove 14 is attached to the side wall of the limiting column 13.

[0052] Exemplarily, during the implementation process, a limiting column 13 is installed on the side wall of the vacuum groove 4 away from the heat sealing strip 3 by welding, screwing or integral molding. The limiting column 13 extends along the notch of the vacuum groove 4 toward the bottom of the vacuum groove 4. A limiting groove 14 corresponding to the limiting column 13 is provided on the outer wall of the groove body 7. When the groove body 7 is inserted into the vacuum groove 4, the groove wall of the limiting groove 14 will fit tightly against the side wall of the limiting column 13 to form a stable mechanical interlocking relationship. Through the cooperation of the limiting column 13 and the limiting groove 14, on the one hand, the stable installation of the groove body 7 in the vacuum groove 4 is ensured, so that even when a large negative pressure is generated during the vacuuming process, the risk of the groove body 7 being offset or falling off can be effectively prevented, thereby improving the stability and safety of the vacuum sealer in this embodiment. On the other hand, the user's need for adjusting the position of the groove body 7 is simplified, so that the user can ensure that the groove body 7 is correctly in place without spending extra effort, thereby improving the convenience and efficiency of operation.

[0053] Example 4

[0054] like Figure 5 Combination Figure 7 As shown, on the basis of the above-mentioned embodiment 3, in this embodiment, the air hole 5 is opened on the limiting column 13; the limiting groove 14 extends along the direction of the lower end surface of the groove body 7 toward the upper end surface of the groove body 7; the groove bottom of the limiting groove 14 is projected on the upper end surface of the limiting column 13 as a projection area, and the coverage rate between the projection area and the air inlet of the air hole 5 is less than 100%.

[0055] Exemplarily, during the implementation process, the air hole 5 is opened on the limiting column 13, and the limiting groove 14 extends from the lower end surface of the tank body 7 to the upper end surface of the tank body 7. And the coverage rate of the bottom of the limiting groove 14 between the projection of the upper end surface of the limiting column 13 and the air inlet of the air hole 5 is less than 100%, so that there is a certain gap 15 between the projection of the bottom of the limiting groove 14 on the upper end surface of the limiting column 13 and the air inlet of the air hole 5. In other words, when the tank body 7 is fully inserted, the air hole 5 is not completely blocked by the bottom of the limiting groove 14, but a partial open area is left to allow air circulation. On the one hand, the bottom of the limiting groove 14 blocks the air hole 5, so as to reduce the risk of blockage of the air hole 5. On the other hand, it is ensured that even when the tank body 7 is installed, the air hole 5 can still be effectively connected to the bag mouth of the vacuum packaging bag, so as not to affect the vacuuming efficiency.

[0056] Example 5

[0057] like Figure 7 As shown, on the basis of the above-mentioned embodiment 4, in this embodiment, a gap 15 is provided between the upper end surface of the limiting column 13 and the bottom of the limiting groove 14 .

[0058] For example, during the implementation, the height of the limiting column 13 is smaller than the height of the limiting groove 14, so that when the tank body 7 is clamped in the vacuum tank 4, a certain gap is left between the upper end surface of the limiting column 13 and the bottom of the limiting groove 14 on the tank body 7. This achieves the purpose of increasing the air circulation area and improving the vacuum efficiency.

[0059] Example 6

[0060] like Figure 7 As shown, on the basis of the above-mentioned embodiment 5, in this embodiment, a guide groove 16 is opened on the upper end surface of the limiting column 13; the guide groove 16 is connected to the air hole 5.

[0061] Exemplarily, during implementation, one or more guide grooves 16 are provided on the upper end surface of the limiting column 13. The guide groove 16 extends from the upper end of the limiting column 13 to the lower end of the limiting column 13, and the guide groove 16 penetrates the inner wall of the side wall of the limiting column 13 and the outer side of the side wall of the limiting column 13, so that the guide groove 16 is connected with the vacuum groove 4 and the air hole 5. The air circulation area is further increased by the guide groove 16, so as to further improve the vacuuming efficiency.

[0062] Example 7

[0063] like Figure 1 As shown, on the basis of the above-mentioned embodiment 1, in this embodiment, a placement groove 17 is opened on the upper end surface of the machine base 1; the placement groove 17 is located on the side of the vacuum groove 4 away from the heat sealing strip 3, and the placement groove 17 is used to place the vacuum packaging bag to be cut; a cutting piece 18 is provided on the upper end surface of the machine base 1; the cutting piece 18 is located between the placement groove 17 and the vacuum groove 4, and the cutting piece 18 corresponds to the placement groove 17, and the cutting piece 18 is used to cut the vacuum packaging bag to be cut.

[0064] Exemplarily, in the implementation process, a placement groove 17 is provided on the upper end surface of the base 1, and the placement groove 17 is located on the side of the vacuum groove 4 away from the heat sealing strip 3. The size and shape of the placement groove 17 are adapted to the size of the vacuum packaging bag, so as to facilitate the user to store the uncut and rolled vacuum packaging bag in the placement groove 17. At the same time, a cutting piece 18 is also provided on the upper end surface of the base 1, and the cutting piece 18 is located between the placement groove 17 and the heat sealing strip 3, and the cutting piece 18 is precisely aligned with the placement groove 17. When the vacuum packaging bag needs to be taken, it is convenient for the user to cut the uncut and rolled vacuum packaging bag into vacuum packaging bags of the required length through the cutting piece 18, thereby saving operation time and improving work efficiency.

[0065] Example 8

[0066] like Figure 1As shown, on the basis of the above-mentioned embodiment 7, in this embodiment, the cutting member 18 includes a knife holder 181 and a cutting knife 182; the knife holder 181 is arranged on the upper end surface of the machine base 1; the knife holder 181 is used to press the vacuum packaging bag to be cut against the upper end surface of the machine base 1; the upper end surface of the knife holder 181 is provided with a slide groove 19; the slide groove 19 passes through the lower end surface of the knife holder 181; the cutting knife 182 is slidably arranged in the slide groove 19, and the cutting knife 182 is used to cut the vacuum packaging bag to be cut.

[0067] Exemplarily, in the implementation process, the cutting member 18 includes a tool holder 181 and a cutting knife 182. The tool holder 181 is mounted on the upper end surface of the machine base 1, and a slide groove 19 is provided on the upper end surface of the tool holder 181. The slide groove 19 extends from the upper end of the tool holder 181 to the lower end of the tool holder 181 and penetrates the tool holder 181. The cutting knife 182 is mounted in the slide groove 19 and can slide along one end of the slide groove 19 toward the other end of the slide groove 19.

[0068] When in use, the cut vacuum packaging bag is pressed against the upper end surface of the machine base 1 by the knife holder 181, so as to reduce the probability of the vacuum packaging bag sliding during cutting and affecting the flatness of the cut surface. At the same time, the cutting knife 182 is driven to slide along one end of the slide groove 19 toward the other end of the slide groove 19, so as to achieve the purpose of cutting the vacuum packaging bag.

[0069] In a preferred embodiment, a knife groove corresponding to the slide groove 19 on the knife holder 181 is opened at the upper end of the machine base 1, so that the lower end of the cutting knife 182 can be located in the knife groove, thereby achieving the purpose of better cutting the vacuum packaging bag.

[0070] Example 9

[0071] like Figure 1 As shown, on the basis of the above-mentioned Example 8, in this embodiment, the vacuum sealing machine also includes a crankshaft 20; one end of the crankshaft 20 is rotatably connected to the side wall of the placement groove 17; the other end of the crankshaft 20 is connected to the tool holder 181; there are two crankshafts 20, and the two crankshafts 20 are relatively arranged on the two side walls of the placement groove 17; the crankshaft 20 is used to drive the tool holder 181 to approach or move away from the upper end surface of the machine base 1.

[0072] Exemplarily, during the implementation, the vacuum sealer also includes a crankshaft 20, one end of which is rotatably connected to the side wall of the placement groove 17 through an axial hole, a bearing, etc., and the other end of the crankshaft 20 is connected to the tool holder 181 by welding, screwing, or integral molding. When in use, the tool holder 181 is first driven to move in a direction away from the upper end surface of the base 1, so as to facilitate the user to place the vacuum packaging bag between the tool holder 181 and the upper end surface of the base 1. Then, the tool holder 181 is driven to move in a direction close to the upper end surface of the base 1, so as to facilitate the user to press the vacuum packaging bag between the tool holder 181 and the upper end surface of the base 1. Among them, the number of crankshafts 20 is set to two, and the two crankshafts 20 are relatively arranged at the two ends of the tool holder 181. The purpose of ensuring the stability of the tool holder 181 during rotation is achieved.

[0073] Example 10

[0074] like Figure 1 As shown, based on the above-mentioned embodiment 9, in this embodiment, a connecting groove 21 is opened on the side wall of the placement groove 17; the crankshaft 20 is arranged in the connecting groove 21, and the crankshaft 20 is rotatably connected to the groove wall of the connecting groove 21.

[0075] For example, in the implementation process, a connecting groove 21 is opened on the side wall of the placement groove 17, and the connecting groove 21 matches the size and layout of the crankshaft 20, ensuring that the crankshaft 20 can be smoothly installed in the connecting groove 21, and is rotatably connected to the groove wall of the connecting groove 21 through a bearing or other rotation support structure. Through this structure, the vacuum packaging bag to be cut is located in the placement groove 17, and the two ends of the vacuum packaging bag to be cut can be limited by the groove wall of the placement groove 17, thereby achieving the purpose of reducing the risk of affecting the placement position of the vacuum packaging bag in the placement groove 17 during the rotation of the crankshaft 20.

[0076] Although the utility model is described herein with reference to a plurality of illustrative embodiments of the utility model, it should be understood that those skilled in the art may devise many other modifications and implementations that fall within the scope and spirit of the principles disclosed herein. More specifically, within the scope of the disclosure, drawings, and claims of the present application, various modifications and improvements may be made to the components and / or layout of the subject combination layout. In addition to modifications and improvements to the components and / or layout, other uses will also be apparent to those skilled in the art.

Claims

1. A vacuum sealing machine, characterized in that: include: A machine base (1), wherein a receiving chamber (2) is arranged inside the machine base (1), and the receiving chamber (2) is used to accommodate a vacuum pump; a heat sealing strip (3), a vacuum groove (4), an air hole (5) and a sealing pad (6) are arranged on the upper end surface of the machine base (1), and the vacuum groove (4) is located on one side of the heat sealing strip (3); the sealing pad (6) is arranged around the notch of the vacuum groove (4); the air hole (5) is located between the inner wall of the sealing pad (6) and the groove wall of the vacuum groove (4), and the air hole (5) is communicated with the receiving chamber (2), and the air hole (5) is used to connect with the vacuum pump; A trough body (7), the trough body (7) being snap-connected in the vacuum trough (4), the upper end surface of the trough body (7) being provided with a water receiving trough (8), the notch of the water receiving trough (8) being used to correspond to the bag opening of the vacuum packaging bag; A machine cover (9), one side of which is hinged to a side of the machine base (1) away from the heat sealing strip (3); wherein the machine cover (9) rotates in a direction close to the upper end surface of the machine base (1), and the machine cover (9) is used to press the vacuum packaging bag against the sealing pad (6) and the heat sealing strip (3), and an air channel (10) is formed between the lower end surface of the machine cover (9) and the upper end surface of the trough body (7) and the inner wall of the sealing pad (6), and the air channel (10) is used to connect the air hole (5) with the bag opening of the vacuum packaging bag.

2. The vacuum sealer according to claim 1, characterized in that: A clamping plate (11) is provided on the side wall of the water receiving groove (8) away from the heat sealing strip (3); A card slot (12) is provided on one side of the card plate (11) close to the heat sealing strip (3); The card slot (12) extends from a side of the card plate (11) close to the heat sealing strip (3) to a side of the card plate (11) away from the heat sealing strip (3); The clamping groove (12) is used for clamping the vacuum packaging bag.

3. The vacuum sealer according to claim 1, characterized in that: A limiting column (13) is provided on the side wall of the vacuum groove (4) away from the heat sealing strip (3); The outer wall of the tank body (7) is provided with a limiting groove (14); The groove wall of the limiting groove (14) is fitted to the side wall of the limiting column (13).

4. The vacuum sealer according to claim 3, characterized in that: The air hole (5) is formed on the limiting column (13); The limiting groove (14) extends in a direction from the lower end surface of the groove body (7) to the upper end surface of the groove body (7); The orthographic projection of the bottom of the limiting groove (14) on the upper end surface of the limiting column (13) is a projection area, and the coverage rate between the projection area and the air inlet of the air hole (5) is less than 100%.

5. The vacuum sealer according to claim 4, characterized in that: A gap (15) is provided between the upper end surface of the limiting column (13) and the bottom of the limiting groove (14).

6. The vacuum sealer according to claim 5, characterized in that: The upper end surface of the limiting column (13) is provided with a guide groove (16); The guide groove (16) is connected to the air hole (5).

7. The vacuum sealer according to claim 1, characterized in that: The upper end surface of the machine base (1) is provided with a placement groove (17); The placement groove (17) is located on a side of the vacuum groove (4) away from the heat sealing strip (3), and the placement groove (17) is used to place the vacuum packaging bag to be cut; The upper end surface of the machine base (1) is provided with a cutting piece (18); The cutting piece (18) is located between the placement groove (17) and the vacuum extraction groove (4), and the cutting piece (18) corresponds to the placement groove (17). The cutting piece (18) is used to cut off the vacuum packaging bag to be cut.

8. The vacuum sealer according to claim 7, characterized in that: The cutting member (18) comprises a knife holder (181) and a cutting knife (182); The tool holder (181) is arranged on the upper end surface of the machine base (1); The knife holder (181) is used to press the vacuum packaging bag to be cut against the upper end surface of the machine base (1); The upper end surface of the tool holder (181) is provided with a slide groove (19); The slide groove (19) passes through the lower end surface of the tool holder (181); The cutting knife (182) is slidably disposed in the sliding groove (19), and the cutting knife (182) is used to cut the vacuum packaging bag to be cut.

9. The vacuum sealer according to claim 8, characterized in that: Also includes a crankshaft (20); One end of the crankshaft (20) is rotatably connected to the side wall of the placement groove (17); The other end of the crankshaft (20) is connected to the tool holder (181); The number of the crankshafts (20) is two, and the two crankshafts (20) are arranged opposite to each other on two side walls of the placement groove (17); The crankshaft (20) is used to drive the tool holder (181) to move closer to or farther from the upper end surface of the machine base (1).

10. The vacuum sealer according to claim 9, characterized in that: The side wall of the placement groove (17) is provided with a connection groove (21); The crankshaft (20) is disposed in the connecting groove (21), and the crankshaft (20) is rotatably connected to a groove wall of the connecting groove (21).

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