Vacuum machine

Abstract

The utility model discloses a vacuum machine which comprises a base assembly and an upper cover assembly, the edge of the rear end of the base assembly is provided with a plurality of rotating grooves distributed in the left-right direction, the edge of the rear end of the upper cover assembly is provided with a plurality of rotating blocks distributed in the left-right direction, and the rotating grooves are matched with the rotating blocks in a rotating mode respectively. The top wall of the base assembly and the bottom wall of the upper cover assembly can be closed so as to conduct vacuumizing and heat sealing on a vacuum bag. Locking blocks protruding upwards are arranged at the left end and the right end of the top wall of the base assembly respectively, locking grooves are formed in the opposite sides of the locking blocks at the left end and the right end respectively, through holes are formed in the left end and the right end of the bottom wall of the upper cover assembly respectively, and lock catches are arranged at the left end and the right end of the interior of the upper cover assembly respectively; the lock catches at the left end and the right end are located above the through holes in the left end and the right end respectively. The lock catch is reasonable in structural design, the structure that the lock catch is matched with the lock groove in a locking mode is simple and efficient, and production cost is low.

Description

Technical Field

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

[0002] With the continuous development of society and economy and the improvement of people's living standards, vacuum machines (also called vacuum sealing machines) have been widely used in people's production and life. In order to better vacuum and heat seal vacuum bags, vacuum machines on the market usually have locking buckles and locking grooves to lock together so that the base assembly and the top cover assembly can be tightly closed and quickly opened.

[0003] However, the current vacuum machine's locking mechanism with its latch and locking groove is quite complex and has a high production cost. Utility Model Content

[0004] The purpose of this utility model is to provide a vacuum machine to solve the technical problem that the current vacuum machine has a complex locking structure and high production cost.

[0005] To achieve the above objectives, the present invention provides a vacuum machine, including a base assembly and a top cover assembly. The rear edge of the base assembly has a plurality of rotating grooves distributed along the left and right sides, and the rear edge of the top cover assembly has a plurality of rotating blocks distributed along the left and right sides. The plurality of rotating grooves are rotatably engaged with the plurality of rotating blocks. The top wall of the base assembly and the bottom wall of the top cover assembly can be closed to vacuum and heat-seal a vacuum bag. The left and right ends of the top wall of the base assembly are respectively provided with upwardly protruding locking blocks, and the opposite sides of the locking blocks at the left and right ends are respectively provided with locking grooves. The left and right ends of the bottom wall of the top cover assembly are respectively provided with through holes. The left and right ends of the interior of the top cover assembly are respectively provided with latches, and the latches at the left and right ends are respectively located above the through holes at the left and right ends. The locking blocks pass upward through the through holes, and the latches are locked in place with the locking grooves. The left and right side walls of the top cover assembly are respectively provided with button holes, and buttons are movably disposed inside the button holes. One end of the latch is connected to the button, and the other end of the latch is connected to a spring.

[0006] Furthermore, the latch includes a locking plate and a locking hook. The locking hook is disposed at the bottom of the locking plate, and the locking hooks at the left and right ends protrude toward opposite sides of the locking plate. The locking hook engages with the locking groove. One side of the locking plate is connected to the button, and the other side of the locking plate is connected to the spring.

[0007] Furthermore, a connecting rod is provided on one side of the lock plate, and a movable shaft is provided on one side of the lock plate. The connecting rod is connected and fixed to the button. The movable shaft is movably disposed in the shaft hole on the fixed seat. The fixed seat is disposed on the inner side of the bottom wall of the upper cover assembly. The spring is sleeved on the movable shaft, and the two ends of the spring abut against the lock plate and the fixed seat respectively.

[0008] Furthermore, the shaft hole has an opening above it, and the top wall of the upper cover assembly is provided with a detachable cutter slide groove, on which a cutter is slidably mounted; the bottom of the left and right ends of the cutter slide groove is provided with downwardly extending pressure plates, and the pressure plates at the left and right ends press down on the movable shafts at the left and right ends respectively.

[0009] Furthermore, the top and bottom walls of the upper cover assembly are detachably installed together, and the button hole is located between the top and bottom walls of the upper cover assembly; the button and the button hole are shaped like a racetrack circle, one end of the button is movably disposed in the button hole, the other end of the button is located inside the upper cover assembly, and the other end of the button is provided with a flange, the width of which is greater than the width of the button hole.

[0010] Furthermore, a trigger shaft extending left and right is provided on the rear side of one of the locking plates, and a mounting seat is provided between the locking plate and the side wall of the upper cover assembly. The mounting seat is fixed to the inner side of the bottom wall of the upper cover assembly. A sensing device is provided inside the mounting seat, and the end of the trigger shaft cooperates with the sensing device.

[0011] Furthermore, the bottom of the lock groove extends downwards, and the top wall of the upper cover assembly is also provided with a display screen.

[0012] Furthermore, the interior of the rotating groove is provided with a rotating rod extending left and right. The upper and lower side walls of the rotating rod are flat, and the front and rear side walls are curved. The flat surface of the rotating rod is inclined. The bottom end of the rotating block is provided with a rotating hole. The bottom end of the rotating hole is open, and the rotating hole is rotatably engaged with the rotating rod.

[0013] Furthermore, the top wall of the base assembly is provided with a lower sealing cavity, and the bottom wall of the upper cover assembly is provided with an upper sealing cavity, the upper sealing cavity and the lower sealing cavity being able to seal together; a support platform is provided in front of the lower sealing cavity, and a heating mechanism is provided in front of the upper sealing cavity, the heating mechanism and the support platform being able to heat seal together; the locking blocks at the left and right ends are respectively provided outside the left and right ends of the lower sealing cavity, and the through holes at the left and right ends are respectively provided outside the left and right ends of the upper sealing cavity.

[0014] Furthermore, the inner wall of the upper sealing cavity is provided with an air extraction hole, and the interior of the upper cover assembly is also provided with a vacuum pumping mechanism, which is connected to the air extraction hole through a connecting pipe; the edges of the upper sealing cavity and the lower sealing cavity are respectively provided with sealing rings, and the upper sealing ring and the lower sealing ring can be sealed together.

[0015] In summary, the technical solution of this utility model has the following beneficial effects: The structure of this utility model is reasonable. (1) By setting a base assembly and a top cover assembly, the rear edge of the base assembly is provided with several rotating grooves distributed along the left and right, and the rear edge of the top cover assembly is provided with several rotating blocks distributed along the left and right. The several rotating grooves are respectively rotated and cooperated with the several rotating blocks. The top wall of the base assembly and the bottom wall of the top cover assembly can be closed to vacuum and heat seal the vacuum bag. Thus, when it is necessary to vacuum and heat seal the vacuum bag, the vacuum bag can be placed on the base assembly first, and then the top wall of the base assembly and the bottom wall of the top cover assembly can be closed by the rotational cooperation of the rotating grooves and the rotating blocks, so that the base assembly and the top cover assembly can cooperate to vacuum and heat seal the vacuum bag. After vacuuming and heat sealing the vacuum bag, the top wall of the base assembly and the bottom wall of the top cover assembly can be separated by the rotational cooperation of the rotating grooves and the rotating blocks, and then the vacuum bag that has been vacuumed and heat sealed can be removed from the base assembly. (2) The base assembly has upward-protruding locking blocks on both the left and right ends of its top wall, with locking grooves on opposite sides of the locking blocks. The top cover assembly has through holes on both the left and right ends of its bottom wall, and latches on both the left and right ends of its interior. The latches are located above the through holes on both the left and right ends, with the locking blocks passing upward through the through holes and the latches locking into the locking grooves. The top cover assembly has button holes on both the left and right sides, with buttons movably installed inside the button holes. One end of the latch is connected to the button, and the other end is connected to a spring. Thus, when the base assembly and the top cover assembly need to be tightly closed, the locking blocks can pass upward through the through holes, and the latches lock into the locking grooves under the push of the springs. When the base assembly and the top cover assembly need to be quickly opened, the button can be pressed, and the latches compress the springs and disengage from the locking grooves. From this analysis, it can be seen that the base assembly and the top cover assembly of this utility model can be tightly closed and quickly opened, and the structure of the latches locking into the locking grooves is simple and efficient, with low production costs. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0017] Figure 2 This is a three-dimensional structural diagram of the base assembly of this utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of the top cover assembly of this utility model;

[0019] Figure 4 This is a three-dimensional structural diagram of the top cover assembly of this utility model when the top wall is removed;

[0020] Figure 5 yes Figure 4 A magnified view of the left-hand region;

[0021] Figure 6 yes Figure 4 A magnified view of the right-hand area;

[0022] Explanation of reference numerals in the attached drawings: base assembly (1), top cover assembly (2), latch (3), button (4), spring (5), cutter slide (6), support platform (7), heating mechanism (8), display screen (9), sealing ring (10), sensing device (11), cutter (12); rotating groove (101), locking block (102), locking groove (103), rotating rod (104), lower sealing cavity (105); rotating block (201), rotating hole (202), through hole (203), button hole (204), air extraction hole (205), fixed seat (206), shaft hole (207), mounting seat (208), upper sealing cavity (209); locking plate (301), locking hook (302), connecting rod (303), movable shaft (304), trigger shaft (305); flange (401); pressure plate (601). Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model, but this does not constitute a limitation on the scope of protection of the present utility model.

[0024] In this utility model, for clearer description, the following explanation is provided: The observer faces the attached... Figure 1 When observing, the observer's left side is designated as left, the observer's right side as right, the area in front of the observer as front, the area behind the observer as back, the area above the observer as top, and the area below the observer as bottom. It should be noted that the terms "front end," "rear end," "left side," "right side," "middle," "above," and "below" used in this document indicate the orientation or positional relationship based on the accompanying drawings. These are merely for the purpose of clearly describing the present invention and do not indicate or imply that the structure or component referred to must have a specific orientation or be constructed in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," "third," and "fourth" are used only for the purpose of clarity or simplification of description and should not be construed as indicating or implying relative importance or quantity.

[0025] See Figures 1 to 6This embodiment provides a vacuum machine, including a base assembly 1 and a top cover assembly 2. The rear edge of the base assembly 1 is provided with a plurality of rotating grooves 101 distributed along the left and right sides, and the rear edge of the top cover assembly 2 is provided with a plurality of rotating blocks 201 distributed along the left and right sides. The plurality of rotating grooves 101 are respectively rotatably engaged with the plurality of rotating blocks 201. The top wall of the base assembly 1 and the bottom wall of the top cover assembly 2 can be closed to perform vacuuming and heat sealing of the vacuum bag. The left and right ends of the top wall of the base assembly 1 are respectively provided with upwardly protruding locking blocks 102. 2. Locking grooves 103 are provided on opposite sides of the top cover assembly 2. Through holes 203 are provided on the left and right ends of the bottom wall of the top cover assembly 2. Locking buckles 3 are provided on the left and right ends of the interior of the top cover assembly 2. The locking buckles 3 are located above the through holes 203 on the left and right ends respectively. The locking block 102 passes through the through holes 203 upwards, and the locking buckles 3 are locked in place with the locking grooves 103. Button holes 204 are provided on the left and right side walls of the top cover assembly 2. Buttons 4 are movably installed inside the button holes 204. One end of the locking buckle 3 is connected to the button 4, and the other end of the locking buckle 3 is connected to the spring 5. Function: (1) By setting a base assembly and a top cover assembly, the rear edge of the base assembly is provided with several rotating grooves distributed along the left and right, and the rear edge of the top cover assembly is provided with several rotating blocks distributed along the left and right. The rotating grooves are respectively rotated and engaged with the rotating blocks, so that the top wall of the base assembly and the bottom wall of the top cover assembly can be closed to vacuum and heat seal the vacuum bag; thus, when it is necessary to vacuum and heat seal the vacuum bag, the vacuum bag can be placed on the base assembly first, and then the top wall of the base assembly and the bottom wall of the top cover assembly can be closed by the rotational engagement of the rotating grooves and the rotating blocks, so that the base assembly and the top cover assembly can cooperate to vacuum and heat seal the vacuum bag; after the vacuum bag is vacuumed and heat sealed, the top wall of the base assembly and the bottom wall of the top cover assembly can be separated by the rotational engagement of the rotating grooves and the rotating blocks, and then the vacuum bag that has been vacuumed and heat sealed can be removed from the base assembly. (2) The base assembly has upward protruding locking blocks on the left and right ends of the top wall, and locking grooves on the opposite sides of the locking blocks. The bottom wall of the top cover assembly has through holes on the left and right ends, and locking buckles are provided on the left and right ends of the interior of the top cover assembly. The locking buckles are located above the through holes on the left and right ends, and the locking blocks pass through the through holes upward, locking the locking buckles and locking grooves. The left and right side walls of the top cover assembly have button holes, and buttons are movably installed inside the button holes. One end of the locking buckle is connected to the button, and the other end of the locking buckle is connected to the spring. Thus, when the base assembly and the top cover assembly need to be tightly closed, the locking blocks can pass through the through holes upward, and the locking buckles are locked in place with the locking grooves under the push of the springs. When the base assembly and the top cover assembly need to be opened quickly, the button can be pressed, and the locking buckles compress the springs and disengage from the locking grooves.Analysis shows that the base assembly and top cover assembly of this utility model can close tightly and open quickly. The locking mechanism of the latch and locking groove is simple and efficient, and the production cost is low.

[0026] Specifically, the latch 3 includes a locking plate 301 and a locking hook 302. The locking hook 302 is located at the bottom of the locking plate 301, with the left and right ends of the locking plate 301 protruding to opposite sides. The locking hook 302 engages with the locking groove 103. One side of the locking plate 301 is connected to the button 4, and the other side is connected to the spring 5. Function: The locking plate 301 can move left and right with the button 4 and the spring 5, and can also abut against the locking block. The locking hook 302 can engage with the locking groove 103.

[0027] Specifically, a connecting rod 303 is provided on one side of the locking plate 301, and a movable shaft 304 is provided on the other side of the locking plate 301. The connecting rod 303 is connected and fixed to the button 4. The movable shaft 304 is movably disposed in the shaft hole 207 on the fixed seat 206, which is disposed on the inner side of the bottom wall of the upper cover assembly 2. The spring 5 is sleeved on the movable shaft 304, and the two ends of the spring 5 abut against the locking plate 301 and the fixed seat 206 respectively. Function: The setting of the connecting rod 303 and the movable shaft 304 allows the locking plate 301 and the locking hook 302 to maintain left and right movement. Under the elastic force of the spring 5, the locking plate 301 pushes the connecting rod 303 and the button 4 outward in sequence, while when the button 4 is pressed, the button 4 pushes the connecting rod 303, the locking plate 301 and the spring 5 inward in sequence.

[0028] Specifically, the top of the shaft hole 207 is open, and the top wall of the upper cover assembly 2 is provided with a detachable cutter groove 6, on which a cutter 12 is slidably mounted. The bottom of the left and right ends of the cutter groove 6 are respectively provided with downward-extending pressure plates 601, which press down on the movable shafts 304 at the left and right ends respectively. Function: By providing the detachable cutter groove 6, the cutter can be used in conjunction with the cutter groove 6 to cut vacuum bags placed on the outside, for example, cutting vacuum bags to the required size according to the amount of contents to be placed. The pressure plates 601 facilitate pressing down on the movable shafts 304, keeping the movable shafts 304 moving left and right within the shaft hole 207, and are also convenient for disassembly when needed.

[0029] Specifically, the top and bottom walls of the upper cover assembly 2 are detachably installed together, and the button hole 204 is located between the top and bottom walls of the upper cover assembly 2. The button 4 and the button hole 204 are shaped like a racetrack. One end of the button 4 is movably mounted in the button hole 204, and the other end of the button 4 is located inside the upper cover assembly 2. The other end of the button 4 has a flange 401, the width of which is greater than the width of the button hole 204. Function: When the button 4 is pressed, the button 4 pushes the latch 3 and the spring 5 inward in sequence. When the applied pressure is released, the spring 5 pushes the latch 3 and the button 4 outward in sequence. The flange 401 can prevent the button 4 from disengaging from the button hole 204. The installation and removal of the button, latch, and spring are also very convenient.

[0030] Specifically, one of the locking plates 301 has a trigger shaft 305 extending left and right on its rear side. A mounting base 208 is provided between the locking plate 301 and the side wall of the upper cover assembly 2, and the mounting base 208 is fixed to the inner side of the bottom wall of the upper cover assembly 2. A sensing device 11 is provided inside the mounting base 208, and the end of the trigger shaft 305 cooperates with the sensing device 11. Function: When the base assembly and the upper cover assembly need to be tightly closed, the locking block can pass upwards through the through hole, and then the latch, pushed by the spring, locks into the locking groove. At this time, driven by the locking plate 301, the end of the trigger shaft 305 triggers the sensing device 11, allowing the sensing device 11 to determine the state between the base assembly and the upper cover assembly.

[0031] Specifically, the bottom of the locking groove 103 extends downwards, and the top wall of the upper cover assembly 2 is also equipped with a display screen 9. Function: The locking groove 103 allows water on the top wall of the base assembly to flow downwards, and the display screen 9 can display the working status.

[0032] Specifically, the rotating groove 101 has a rotating rod 104 extending left and right inside it. The upper and lower side walls of the rotating rod 104 are flat, while the front and rear side walls are curved. The flat side of the rotating rod 104 is inclined. The bottom end of the rotating block 201 has a rotating hole 202, which is open at the bottom and rotates in conjunction with the rotating rod 104. Function: The rotating rod 104 and the rotating hole 202 not only achieve a rotating fit but also allow for quick disassembly and installation. The curved front and rear side walls of the rotating rod 104 ensure a good rotating fit. The flat upper and lower side walls of the rotating rod 104 facilitate the uprighting of the top cover assembly.

[0033] Specifically, the top wall of the base assembly 1 is provided with a lower sealing cavity 105, and the bottom wall of the upper cover assembly 2 is provided with an upper sealing cavity 209. The upper sealing cavity 209 and the lower sealing cavity 105 can be sealed together. A support platform 7 is provided in front of the lower sealing cavity 105, and a heating mechanism 8 is provided in front of the upper sealing cavity 209. The heating mechanism 8 and the support platform 7 can be heat-sealed together. Locking blocks 102 at the left and right ends are respectively provided on the outside of the left and right ends of the lower sealing cavity 105, and through holes 203 at the left and right ends are respectively provided on the outside of the left and right ends of the upper sealing cavity 209. Function: When the upper cover assembly and the base assembly are closed, the upper sealing cavity and the lower sealing cavity can form a vacuum cavity through sealing. When the vacuum bag needs to be heat-sealed, the upper cover assembly and the base assembly can be closed, and then the heat-sealing cooperation between the heating mechanism and the support platform can be used to heat-seal the sealing position of the vacuum bag. Preferably, the heating mechanism 8 includes a nickel-chromium heating wire and a high-temperature adhesive tape, and the support platform 7 is made of silicone. The positional distribution of the locking block 102 and the through hole 203 facilitates a tighter fit between the lower sealing cavity 105 and the upper sealing cavity 209.

[0034] Specifically, the inner wall of the upper sealing cavity 209 is provided with an air extraction hole 205, and the upper cover assembly 2 is also provided with a vacuuming mechanism, which is connected to the air extraction hole 205 through a connecting pipe; the edges of the upper sealing cavity 209 and the lower sealing cavity 105 are respectively provided with sealing rings 10, and the upper sealing ring 10 and the lower sealing ring 10 can be sealed together. Function: The vacuum cavity can be evacuated by the vacuuming mechanism, so that the seal of the vacuum bag can be inserted into the vacuum cavity for vacuuming. The setting of the sealing ring 10 can better achieve the vacuuming effect.

[0035] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A vacuum machine, comprising a base assembly (1) and a top cover assembly (2), characterized in that: The rear edge of the base assembly (1) is provided with a plurality of rotating grooves (101) distributed along the left and right sides, and the rear edge of the upper cover assembly (2) is provided with a plurality of rotating blocks (201) distributed along the left and right sides. The plurality of rotating grooves (101) are respectively rotatably engaged with the plurality of rotating blocks (201), and the top wall of the base assembly (1) and the bottom wall of the upper cover assembly (2) can be closed to vacuum and heat seal the vacuum bag; the left and right ends of the top wall of the base assembly (1) are respectively provided with upward protruding locking blocks (102), and the opposite sides of the locking blocks (102) at the left and right ends are respectively provided with locking grooves (103), and the upper cover assembly (2) is provided with a plurality of rotating blocks (201) distributed along the left and right sides. The bottom wall of the top cover assembly (2) has through holes (203) at both the left and right ends. The top cover assembly (2) has latches (3) at both the left and right ends. The latches (3) at the left and right ends are located above the through holes (203) at the left and right ends. The locking block (102) passes through the through hole (203) upwards. The latches (3) are locked in place with the locking groove (103). The left and right side walls of the top cover assembly (2) have button holes (204). A button (4) is movably installed inside the button hole (204). One end of the latch (3) is connected to the button (4), and the other end of the latch (3) is connected to the spring (5).

2. The vacuum machine according to claim 1, characterized in that: The latch (3) includes a locking plate (301) and a locking hook (302). The locking hook (302) is located at the bottom of the locking plate (301). The locking hooks (302) at the left and right ends protrude toward the opposite side of the locking plate (301) at the left and right ends, respectively. The locking hook (302) is locked in place with the locking groove (103). One side of the locking plate (301) is connected to the button (4), and the other side of the locking plate (301) is connected to the spring (5).

3. The vacuum machine according to claim 2, characterized in that: A connecting rod (303) is provided on one side of the locking plate (301), and a movable shaft (304) is provided on one side of the locking plate (301). The connecting rod (303) is connected and fixed to the button (4). The movable shaft (304) is movably disposed in the shaft hole (207) on the fixed seat (206). The fixed seat (206) is disposed on the inner side of the bottom wall of the upper cover assembly (2). The spring (5) is sleeved on the movable shaft (304), and the two ends of the spring (5) abut against the locking plate (301) and the fixed seat (206) respectively.

4. A vacuum machine according to claim 3, characterized in that: The shaft hole (207) has an opening above it. The top wall of the upper cover assembly (2) is provided with a detachable cutter groove (6). A cutter (12) is slidably mounted on the cutter groove (6). The bottom of the left and right ends of the cutter groove (6) is provided with downwardly extending pressure plates (601). The pressure plates (601) at the left and right ends press down on the movable shafts (304) at the left and right ends respectively.

5. A vacuum machine according to claim 4, characterized in that: The top and bottom walls of the upper cover assembly (2) are detachably installed together. The button hole (204) is located between the top and bottom walls of the upper cover assembly (2). The button (4) and the button hole (204) are in the shape of a racetrack circle. One end of the button (4) is movably disposed in the button hole (204), and the other end of the button (4) is located inside the upper cover assembly (2). The other end of the button (4) is provided with a flange (401), and the width of the flange (401) is greater than the width of the button hole (204).

6. A vacuum machine according to claim 2, characterized in that: One of the locking plates (301) has a trigger shaft (305) extending from left to right on its rear side. A mounting seat (208) is provided between the locking plate (301) and the side wall of the upper cover assembly (2). The mounting seat (208) is fixed to the inner side of the bottom wall of the upper cover assembly (2). A sensing device (11) is provided inside the mounting seat (208). The end of the trigger shaft (305) cooperates with the sensing device (11).

7. A vacuum machine according to claim 1, characterized in that: The bottom of the lock groove (103) extends downwards, and the top wall of the upper cover assembly (2) is also provided with a display screen (9).

8. A vacuum machine according to any one of claims 1 to 7, characterized in that: The rotating groove (101) is provided with a rotating rod (104) extending from left to right inside. The upper and lower side walls of the rotating rod (104) are flat and the front and rear side walls are curved. The plane of the rotating rod (104) is inclined. The bottom end of the rotating block (201) is provided with a rotating hole (202). The bottom end of the rotating hole (202) is open. The rotating hole (202) is rotatably engaged with the rotating rod (104).

9. A vacuum machine according to any one of claims 1 to 7, characterized in that: The base assembly (1) has a lower sealing cavity (105) on its top wall and an upper sealing cavity (209) on its bottom wall. The upper sealing cavity (209) and the lower sealing cavity (105) are sealed together. A support platform (7) is provided in front of the lower sealing cavity (105) and a heating mechanism (8) is provided in front of the upper sealing cavity (209). The heating mechanism (8) and the support platform (7) are heat-sealed together. The locking blocks (102) at the left and right ends are respectively located outside the left and right ends of the lower sealing cavity (105), and the through holes (203) at the left and right ends are respectively located outside the left and right ends of the upper sealing cavity (209).

10. A vacuum machine according to claim 9, characterized in that: The inner wall of the upper sealing cavity (209) is provided with an air extraction hole (205), and the interior of the upper cover assembly (2) is also provided with a vacuum mechanism. The vacuum mechanism is connected to the air extraction hole (205) through a connecting pipe. The edges of the upper sealing cavity (209) and the lower sealing cavity (105) are respectively provided with sealing rings (10), and the upper sealing ring (10) and the lower sealing ring (10) can be sealed together.

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