Improved vacuum sealing machine

Abstract

The utility model relates to the technical field of sealing machines, in particular to an improved vacuum sealing machine which comprises a shell capable of being opened and closed in an overturning mode, a vacuum bin is formed in the shell after the shell is closed, the shell comprises a seat body and an upper cover which are connected through a hinge, and the vacuum bin is divided into a lower vacuum area in the seat body and an upper vacuum area in the upper cover. A lower annular groove is formed outside the lower vacuum area, a sealing strip is assembled in the lower annular groove, the interior of the lower vacuum area is divided into an exhaust pipe connector part, and the exhaust pipe connector part is vertical and is communicated with the lower vacuum area; the inner side wall of the lower vacuum area further comprises a protruding block, and a folding area used for folding the bag opening is formed between the protruding block and the inner side wall of the lower vacuum area. According to the technology, the folding area is arranged in the seat body, when the bag body is placed, the bag opening is placed in the folding area in a folding mode, air in the bag body directly flows towards the bag opening along the lower portion during air exhaust, and therefore air exhaust hysteresis is reduced.

Description

Technical Field

[0001] This utility model relates to the field of sealing machine technology, and in particular to an improved vacuum sealing machine. Background Technology

[0002] An improved vacuum sealing machine is a device that extends the shelf life of food and other items by removing air from packaging bags and sealing them. It is widely used in households, catering, and industrial fields.

[0003] In a conventional vacuum sealing machine, the bag is placed horizontally into the vacuum chamber with its opening facing out. However, because the nozzle inside the vacuum chamber is vertical, the air extraction direction causes the vacuum chamber to be drawn first, resulting in a lag in the expulsion of air from the bag and affecting efficiency. Therefore, to ensure synchronous air extraction from the bag during the vacuuming process, an improved vacuum sealing machine is introduced. Utility Model Content

[0004] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.

[0005] An improved vacuum sealing machine includes a flip-openable housing. When closed, the housing forms a vacuum chamber. The housing includes a hinged base and a top cover. The vacuum chamber is divided into a lower vacuum zone in the base and an upper vacuum zone in the top cover. A lower annular groove is provided outside the lower vacuum zone, and a sealing strip is installed in the lower annular groove. A suction pipe interface is provided in the lower vacuum zone, which is vertical and connected to the lower vacuum zone. The inner wall of the lower vacuum zone also includes a protruding block, and a folding area for folding the bag opening is formed between the protruding block and the inner wall of the lower vacuum zone. An upper annular groove for inserting the sealing strip is provided outside the upper vacuum zone, and the upper vacuum zone also includes a slot for inserting the protruding block.

[0006] Furthermore, the protruding blocks and the grooves are arranged in two groups, and the two groups of protruding blocks and grooves are symmetrically distributed on the left and right sides of the center line of the shell.

[0007] Furthermore, the protruding block and the inner wall of the lower vacuum zone are provided with an extended gap located below the folding zone.

[0008] Furthermore, a hot-pressing assembly is provided inside the closed housing, located between the housing inlet and the vacuum chamber. The hot-pressing assembly consists of a lower pressure strip in the seat and an upper heat-sealing strip in the upper cover. The lower pressure strip is stepped, and the upper cover has a groove that matches the lower pressure strip. The upper heat-sealing strip is fitted to the top of the groove.

[0009] Furthermore, the seat body is also equipped with a sealed chamber located on the side of the lower vacuum zone. The sealed chamber is divided into sections for an air pump and a control unit, and is also equipped with an external air extraction pipe assembly that communicates with the outside.

[0010] Furthermore, the enclosed interior is also equipped with a pipe containing at least a tee.

[0011] The beneficial effects of this utility model are:

[0012] (1) By setting a folding area in the seat, when placing the bag, the bag opening is placed in the folded position and then covered. When evacuating, the gas in the bag flows directly towards the lower bag opening, thereby reducing the lag in evacuation.

[0013] (2) Divide the vacuum chamber and the hot pressing area into one area, and enclose the control components and pump body in another area; so as to ensure the reasonable distribution of internal components, and the internal pipe body can ensure the routing of the hose.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the structure after the seat is opened.

[0017] Figure 3 This is a schematic diagram of the lower end face structure of the upper cover.

[0018] Figure 4 This is a schematic diagram of the enclosed interior structure within the seat.

[0019] The labels in the attached figures are as follows: Detailed Implementation

[0020] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] Please see Figures 1-4This utility model includes a flip-openable shell 1, and a vacuum chamber 101 is formed inside the shell 1 after it is closed. The shell 1 includes a seat 2 and a top cover 3 connected by hinges. The vacuum chamber 101 is divided into a lower vacuum zone 201 in the seat 2 and an upper vacuum zone 301 in the top cover 3. The lower vacuum zone 201 is provided with a lower annular groove 202, and a sealing strip 203 is installed in the lower annular groove 202. The lower vacuum zone 201 is divided into a suction pipe interface 204, which is vertical and connects to the lower vacuum zone 201. The inner sidewall of the lower vacuum zone 201 also includes a protruding block 205, and a folding area 206 for folding the bag opening is formed between the protruding block 205 and the inner sidewall of the lower vacuum zone 201. The upper vacuum zone 301 is provided with an upper annular groove 302 for inserting the sealing strip 203, and the upper vacuum zone 301 also includes a slot 303 for inserting the protruding block 205.

[0022] In this technology, the housing 1 mainly consists of a base 2 and an upper cover 3. The upper cover 3 is connected to the base 2 by a hinge, thereby enabling the base 2 to open and close. After the upper cover 3 is closed on the base 2, a vacuum chamber 101 is formed inside the housing 1. Specifically, the vacuum chamber 101 is divided into a lower vacuum zone 201 in the base 2 and an upper vacuum zone 301 in the upper cover 3. A lower annular groove 202 is provided outside the lower vacuum zone 201, and a sealing strip 203 is installed in the lower annular groove 202. A vacuum pipe interface is also provided in the lower vacuum zone 201. 204. The air extraction pipe interface is vertical and connects to the lower vacuum zone 201. Through the internal pump body and the hose connected to the air extraction pipe interface, the air extraction work in the vacuum chamber 101 can be finally realized. The above is the existing technical solution. On this basis, the present technology further includes a protruding block 205 on the inner side wall of the lower vacuum zone 201. A folding area 206 for folding the bag opening is formed between the protruding block 205 and the inner side wall of the lower vacuum zone 201. The protruding block 205 is in two sets symmetrically distributed on the left and right sides of the center line of the shell 1. Its working principle is as follows: After opening the base 2, the user folds the bag opening and inserts it into the folding area 206 between the protruding block 205 and the inner wall of the lower vacuum zone 201, so that the bag opening is in a downward position. Since the protruding block 205 is individual, it is convenient for the user to fold the bag and put the bag opening into the folding area 206. It is held by the protruding block 205 and the inner wall of the lower vacuum zone 201 (in order to ensure that the bag does not fall when it is wrapped with heavy objects, the user can also hold the end of the bag to keep it stable). Then the top cover 3 covers and fixes it. At this time, the gas in the vacuum bag is vacuumed along the downward edge of the bag opening. Compared with the vacuuming process when the bag is laid flat, the vacuuming process is better reduced due to the relative position of the bag opening and the inner wall. In order to facilitate the insertion of more of the bag opening into the folding area 206, an extension gap 207 is also provided below the folding area 206 between the protruding block 205 and the inner wall of the lower vacuum zone 201.

[0023] In order to stabilize the clamping of the seat 2 and the formation of the vacuum chamber 101, the upper vacuum zone 301 is provided with an upper annular groove 302 for the insertion of the sealing strip 203 and a slot 303 for the insertion of the protrusion 205; the slot 303 is provided in two sets symmetrically distributed on the left and right sides of the center line of the housing 1, corresponding to the protrusion 205.

[0024] Simultaneously, after vacuum extraction, the bag needs to be sealed. The specific structure is as follows: A heat-sealing assembly 102 is installed inside the sealed shell 1, located between the inlet of the shell 1 and the vacuum chamber 101. The heat-sealing assembly 102 consists of a lower pressure strip 208 in the base 2 and an upper heat-sealing strip 304 in the upper cover 3. The lower pressure strip 208 has a stepped shape, and the upper cover 3 has a groove 305 that matches the lower pressure strip 208. The upper heat-sealing strip 304 is fitted onto the top of the groove 305. The heat sealing of the bag is achieved through the contact between the upper heat-sealing strip and the lower pressure strip 208 within the groove 305. The reason for placing the upper heat-sealing strip 304 in the groove 305 to match the stepped lower pressure strip 208 is to concentrate heat in the groove 305 when the heat-sealing strip is heated.

[0025] The base 2 also includes a sealed chamber 209 located on the side of the lower vacuum zone 201. The sealed chamber 209 contains a pump and a control unit, and also includes an external suction pipe assembly 210 communicating with the outside. The pump and control unit within the sealed chamber 209 are existing components and will not be elaborated upon. Furthermore, the sealed chamber 209 also includes a pipe 211 containing at least a tee, which allows for the arrangement and assembly of internal hoses, preventing messy internal hose connections.

[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.

Claims

1. An improved vacuum sealing machine, comprising a flip-openable housing (1), wherein a vacuum chamber (101) is formed inside the housing (1) after it is closed, characterized in that: The housing (1) includes a seat (2) and a top cover (3) connected by hinges. The vacuum chamber (101) is divided into a lower vacuum zone (201) in the seat (2) and an upper vacuum zone (301) in the top cover (3). The lower vacuum zone (201) is provided with a lower annular groove (202), and a sealing strip (203) is installed in the lower annular groove (202). The lower vacuum zone (201) is divided into a vacuum pipe interface (204), which is vertical and connected to the lower vacuum zone (201). The inner wall of the lower vacuum zone (201) also includes a protruding block (205), and a folding area (206) for folding the bag opening is formed between the protruding block (205) and the inner wall of the lower vacuum zone (201). The upper vacuum zone (301) is provided with an upper annular groove (302) for inserting a sealing strip (203), and the upper vacuum zone (301) also includes a slot (303) for inserting a protrusion (205).

2. The improved vacuum sealing machine according to claim 1, characterized in that: The protruding blocks (205) and the slots (303) are in two sets, and the two sets of protruding blocks (205) and slots (303) are symmetrically distributed on the left and right sides of the center line of the shell (1).

3. An improved vacuum sealing machine according to claim 1, characterized in that: The protruding block (205) and the inner wall of the lower vacuum zone (201) are also provided with an extended gap (207) located below the folding zone (206).

4. An improved vacuum sealing machine according to claim 1, characterized in that: The closed housing (1) is also equipped with a hot pressing assembly (102), which is located between the inlet of the housing (1) and the vacuum chamber (101). The hot pressing assembly (102) is divided into a lower pressure strip (208) in the seat (2) and an upper heat sealing strip (304) in the upper cover (3). The lower pressure strip (208) is in a stepped shape, and there is a groove (305) in the upper cover (3) that matches the lower pressure strip (208). The upper heat sealing strip (304) is fitted to the top of the groove (305).

5. An improved vacuum sealing machine according to claim 1, characterized in that: The seat (2) is also provided with a closed chamber (209), which is located on the side of the lower vacuum zone (201). The closed chamber (209) is divided into sections for an air pump and a control unit, and the closed chamber (209) is also provided with an external air extraction pipe assembly (210) that communicates with the outside.

6. An improved vacuum sealing machine according to claim 5, characterized in that: The enclosed chamber (209) also contains a pipe (211) that includes at least a tee.

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