A sealing machine for a flushable negative pressure cavity

Abstract

The utility model relates to the technical fields of sealing machine, propose a kind of sealing machine of flushable negative pressure cavity, including machine body, the sealing machine includes: bin body assembly, external element and driver, bin body assembly has opening state and closed state and is set in machine body, bin body assembly is configured to allow to be sealed piece to enter when opening, form negative pressure cavity when closing, so that sealing machine to sealed piece carries out vacuum sealing;External element is used to connect water source and is set on the outside of machine body, external element is communicated with bin body assembly;Driver is set in machine body and when running, water source enters negative pressure cavity from external element, to flush negative pressure cavity.Machine body on bin body assembly, water box subassembly and external element cooperate, cleaning fluid in container can enter bin body assembly through external element, liquid cleaning bin body assembly flows into water box subassembly and is collected.No need to manually dismount bin body assembly, internal cleaning can be completed, solve the technical problem that existing sealing machine lacks cleaning function.

Description

Technical Field

[0001] This utility model relates to the technical field of sealing machines, specifically to a sealing machine with a flushable negative pressure chamber. Background Technology

[0002] The main purpose of a sealing machine is to seal the opening of a packaging bag using a heat-sealing method. Currently, sealing machines on the market are typically equipped with a vacuum function, which removes air from the bag before sealing. For example, Chinese Patent Publication No. CN115593692A discloses a bag sealing machine, and Chinese Patent Publication No. CN120942677A discloses a vacuum sealing machine. Both machines employ an upper and lower chamber structure, with the packaging bag to be sealed placed between the two chambers. When the upper and lower chambers are closed relative to each other, the air pump starts to create a vacuum. However, during the air extraction process, liquid from inside the bag may seep into the chambers, and most existing bag sealing machines lack a cleaning function, requiring users to manually disassemble and clean them. Utility Model Content

[0003] This utility model proposes a sealing machine with a flushable negative pressure chamber. The machine body has a chamber assembly, a water box assembly, and an external connector. The cleaning liquid in the container can enter the chamber assembly through the external connector. After cleaning the chamber assembly, the liquid flows into the water box assembly for collection, thus solving the technical problem that existing sealing machines lack a cleaning function.

[0004] A sealing machine with a flushable negative pressure chamber, designed for this purpose, includes a machine body, the sealing machine comprising: The chamber assembly has an open state and a closed state and is disposed inside the machine body. The chamber assembly is configured to allow the part to be sealed to enter when it is open, and to form a negative pressure chamber when it is closed, so that the sealing machine can vacuum seal the part to be sealed. An external connector, which is used to connect to a water source and is installed on the outside of the machine body, is connected to the tank assembly; A driver, which is located inside the machine body and, during operation, allows water to enter the negative pressure chamber from an external connector to flush the negative pressure chamber.

[0005] The driver is an air pump used to draw gas from inside the chamber assembly. When the negative pressure chamber of the chamber assembly is under negative pressure, water is drawn from the external component into the negative pressure chamber of the chamber assembly.

[0006] The sealing machine includes a water box assembly for collecting liquid. The chamber assembly, the water box assembly, and the air pump are connected in sequence to form a vacuum path. When the chamber assembly is in a vacuum state, the sucked-in liquid enters the water box assembly and cannot reach the air pump.

[0007] The sealing machine includes a pneumatic solenoid valve for inputting positive pressure into the water box assembly, the pneumatic solenoid valve being disposed within the machine body.

[0008] The water box assembly is equipped with a water level sensor for detecting the level of the liquid inside.

[0009] The water box assembly is provided with a first end, a second end and a third end; The tank assembly is provided with a first connection end, which is connected to the first end; the air pump input end is connected to the second end, the air solenoid valve output end is connected to the third end, and both the air pump output end and the air solenoid valve input end are connected to the outside of the water box assembly. When the air pump is running, the air solenoid valve is closed, and the air pump draws in the gas inside the water box assembly and the chamber assembly; when the air pump stops running, the air solenoid valve opens to inflate the water box assembly and the chamber assembly.

[0010] The water box assembly includes a shell and a water box. The first end, the second end and the third end are all set on the shell. The water box is detachably installed inside the shell. A water level sensor is provided on the water box or the shell. The probe of the water level sensor is set in correspondence with the inner cavity of the water box.

[0011] The outer shell and the body are integrally formed, or the outer shell and the body are detachably connected.

[0012] The external component is either detachably installed on the machine body, or the external component is inseparable from the machine body; The body is provided with a plug-in cavity, and a sealing element with elastic axial movement is provided inside the plug-in cavity. A connecting post for connecting the chamber assembly is provided on the plug-in cavity. The connecting post has a hollow structure, and the external component is detachably installed in the plug-in cavity. The seal blocks the connecting post when the external part is not inserted. When the external part is inserted into the insertion cavity, the external part triggers the seal to move in the direction of opening the connecting post.

[0013] The compartment assembly is provided with a second connecting end, which is connected to the connecting column; The end of the external connector that is inserted into the insertion cavity is provided with a sealing ring and a liquid inlet notch; The insertion cavity is located on the side of the water box assembly; The tank assembly is located above the water box assembly, the air pump is located on the side of the water box assembly, the air solenoid valve is located below the water box assembly, and a water level sensor is installed inside the water box assembly. The machine body is equipped with a control device, and the air pump, air solenoid valve and water level sensor are electrically connected to the control device.

[0014] The beneficial technical effects of this utility model are as follows: The machine body's chamber assembly, water tank assembly, and external connectors work together to allow the cleaning fluid in the container to enter the chamber assembly via the external connectors. After cleaning the chamber assembly, the liquid flows into the water tank assembly for collection. Internal cleaning can be completed without manually disassembling the chamber assembly, solving the technical problem of existing sealing machines lacking a cleaning function. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the internal structure of a sealing machine according to an embodiment of the present invention.

[0016] Figure 2 This is a schematic diagram of the internal structure of a sealing machine according to another embodiment of the present invention.

[0017] Figure 3 This is a schematic diagram of the structure of a water box disassembled onto a sealing machine according to an embodiment of the present invention.

[0018] Figure 4 This is a schematic diagram of the structure of an external component according to an embodiment of the present invention.

[0019] Figure 5 This is a structural schematic diagram of the sealing machine in a vacuum state according to an embodiment of the present invention.

[0020] Figure 6 This is a structural schematic diagram of the cleaning process of a sealing machine according to an embodiment of the present invention.

[0021] Figure 7 This is a schematic diagram of the structure of a pneumatic solenoid valve inputting positive pressure to a water box assembly according to an embodiment of the present invention.

[0022] Figure 8 This is a three-dimensional structural diagram of the hopper assembly according to an embodiment of the present invention. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. In order to make the above-mentioned objects, features and advantages of the present application more apparent and understandable, many specific details are set forth in the following description in order to provide a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0024] See Figures 1-8 A sealing machine with a flushable negative pressure chamber includes a body 1. The body 1 is provided with a chamber assembly 2, a water box assembly 3, and an external connector 5 for connecting a container 4. One end of the external connector 5 is connected to the container 4 containing liquid, and the other end of the external connector 5 is connected to the chamber assembly 2. The chamber assembly 2 is connected to the water box assembly 3. When cleaning the chamber assembly 2, the liquid in the container 4 enters the chamber assembly 2 through the external connector 5 and flows into the water box assembly 3.

[0025] The chamber assembly 2 and water tank assembly 3 on the machine body cooperate with the external connector 5. The cleaning fluid in the container 4 can enter the chamber assembly 2 through the external connector 5. After cleaning the chamber assembly 2, the liquid flows into the water tank assembly 4 for collection. Internal cleaning can be completed without manually disassembling the chamber assembly 2, solving the technical problem of existing sealing machines lacking a cleaning function.

[0026] The water tank assembly 3 is equipped with a water level sensor 8 for detecting the internal liquid level. This sensor 8 can detect the internal liquid level in real time, allowing for timely monitoring of the cleaning waste liquid level and preventing equipment contamination or safety hazards caused by excessive overflow. It eliminates the need for frequent opening of the water tank assembly 3 to check the liquid level, improving ease of use. When the liquid level inside the water tank assembly 3 is too high, an alarm can be triggered to alert the user.

[0027] The body 1 is equipped with an air pump 6 for drawing gas from the water box assembly 3, thereby creating a negative pressure inside the chamber assembly 2. Under negative pressure, the liquid in container 4 is output to the tank assembly 2 via external connector 5.

[0028] The air pump 6 draws in the gas inside the water box assembly 3 to create a negative pressure in the chamber assembly 2. The negative pressure can automatically guide the cleaning liquid in the container 4 into the chamber assembly 2 through the external component 5. The air pump 6 of the vacuum sealing machine is used as the driving source, so there is no need to set up an additional driving structure to drive the liquid in the container 4 into the chamber assembly 2, which saves costs and simplifies the internal installation space of the machine body 1.

[0029] The body 1 is equipped with a pneumatic solenoid valve 7 for inputting positive pressure into the water box assembly 3.

[0030] When the water box assembly 3 returns from negative pressure to positive pressure, the air pump 6 stops running and the air solenoid valve 7 opens. External gas enters the water box assembly 3 through the air solenoid valve 7, which can quickly balance the internal air pressure of the water box assembly 3, so that the chamber assembly 2 can be repeatedly vacuumed, which is convenient for the heat fusion sealing of the next bag body to be sealed.

[0031] The water box assembly 3 is provided with a first end 301, a second end 302 and a third end 303; The tank assembly 2 is provided with a first connection end 201, which is connected to the first end 301; the input end of the air pump 6 is connected to the second end 302, the output end of the air solenoid valve 7 is connected to the third end 303, and both the output end of the air pump 6 and the input end of the air solenoid valve 7 are connected to the outside of the water box assembly 3. When the air pump 6 is running, the air solenoid valve 7 is closed, and the air pump 6 draws in the gas inside the water box assembly 3 and the chamber assembly 2; when the air pump 6 stops running, the air solenoid valve 7 is opened to inflate the water box assembly 3 and the chamber assembly 2.

[0032] After the chamber assembly 2 is cleaned, the air pump 6 can run independently for a period of time to extract the residual liquid on the pipes into the water box assembly 3.

[0033] The water box assembly 3 includes a housing 304 and a water box 305. The first end 301, the second end 302 and the third end 303 are all disposed on the housing 304. The water box 305 is detachably installed inside the housing 304. A water level sensor 8 is provided on the water box 305 or the housing 304. The probe of the water level sensor 8 is correspondingly disposed in the inner cavity of the water box 305.

[0034] The water box 305 is detachably installed inside the housing 304, and can be directly removed for manual cleaning without disassembling the entire water box assembly 3, thus reducing maintenance difficulty.

[0035] When the water level sensor 8 is installed on the housing 304, the probe of the water level sensor 8 is correspondingly set with the water box 305 (the probe of the water level sensor 8 faces the inside of the water box 305) to avoid interference between the water level sensor 8 and the water box 305 during disassembly and assembly. The water level sensor 8 needs to be installed on the upper part of the housing 304 by elastic extension and retraction of the spring. The water box 305 is provided with a guide slope to guide the extension and retraction of the second liquid sensor during disassembly and assembly. The housing 304 is provided with an installation chamber, and the second liquid sensor is limited in the installation chamber. The installation chamber is provided with a through hole for the probe of the second liquid sensor to extend out. The upper part of the installation chamber is provided with a sealing plate, which is fixed by screws so that the second liquid sensor and the spring are installed in the installation chamber.

[0036] When the water level sensor 8 is installed on the water box 305, the probe of the water level sensor 8 must be located inside the water box 305. The lower part of the water level sensor 8 is sealed to the water box 305 through a sealing ring, etc. The bottom of the water level sensor 8 is provided with a first power terminal, and the housing 304 is provided with a second power terminal. The second power terminal is electrically connected to the machine control device. After the water box 305 is installed in place (the water box 305 can no longer be pushed into the housing 304), the second power terminal and the first power terminal make conductive contact.

[0037] The water level sensor 8 can be a capacitive sensor.

[0038] The outer shell 304 is integrally formed with the body 1, or the outer shell 304 is detachably connected to the body 1.

[0039] The external component 5 is detachably installed on the body 1, or the external component 5 is inseparable from the body 1; In this embodiment, it is preferable to use an external connector 5 that is detachably installed on the body 1.

[0040] The body 1 is provided with a plug-in cavity 101, and a sealing element 9 with elastic axial movement is provided inside the plug-in cavity 101. A connecting post 102 for connecting the compartment assembly 2 is provided on the plug-in cavity 101. The connecting post 102 has a hollow structure, and the external connector 5 is detachably installed in the plug-in cavity 101. The sealing element 9 blocks the connecting post 102 when the external part 5 is not inserted. When the external part 5 is inserted into the insertion cavity 101, the external part 5 triggers the sealing element 9 to move in the direction of opening the connecting post 102.

[0041] The compartment assembly 2 is provided with a second connection end 202, which is connected to the connecting column 102; The end of the external connector 5 that is inserted into the insertion cavity 101 is provided with a sealing ring 10 and a liquid inlet notch 501; The insertion cavity 101 is located on the side of the water box assembly 3.

[0042] The chamber assembly 2 is located above the water box assembly 3, the air pump 6 is located on the side of the water box assembly 3, and the air solenoid valve 7 is located below the water box assembly 3. The structure is compact and makes reasonable use of the internal space of the body 1. The water box assembly 3 is equipped with a water level sensor 8. The machine body 1 is equipped with a control device, and the air pump 6, air solenoid valve 7, and water level sensor 8 are electrically connected to the control device.

[0043] The control device includes a control circuit board and electrical components such as chips mounted on the control circuit board.

[0044] The specific structure of the compartment assembly 2 can be found in Chinese Patent Publication No. CN218432081U, which discloses a rapid bag sealing machine, or Chinese Patent Publication No. CN120942677A, which discloses a vacuum sealing machine. Therefore, the specific structure of the compartment assembly 2 will not be described in detail here. In general, the compartment assembly 2 includes an upper compartment and a lower compartment, with rolling wheels between the upper and lower compartments. One of the rolling wheels is equipped with a heating element and is driven to rotate by a motor. The bag passes between the two rolling wheels, achieving heat sealing.

[0045] Some extra joints on the hull assembly 2 can be sealed by inserting screws with sealing rings.

[0046] The external connector 5 includes a connecting pipe, plug ends and connectors at both ends of the connecting pipe. The plug end is provided with a sealing ring 10 and a liquid inlet notch 501. The liquid inlet notch 501 is located in front of the sealing ring 10 to prevent water leakage at the rear end of the plug end.

[0047] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A sealing machine with a flushable negative pressure chamber, comprising a body (1), characterized in that: The sealing machine includes: The chamber assembly (2) has an open state and a closed state and is located inside the machine body (1). The chamber assembly (2) is configured to allow the part to be sealed to enter when it is open and to form a negative pressure chamber when it is closed, so that the sealing machine can vacuum seal the part to be sealed. External connector (5), the external connector (5) is used to connect to the water source and is set on the outside of the body (1), and the external connector (5) is connected to the tank assembly (2); A driver is installed inside the body (1) and, during operation, allows water to enter the negative pressure chamber from the external connector (5) to flush the negative pressure chamber.

2. The sealing machine with a flushable negative pressure chamber according to claim 1, characterized in that: The driver is an air pump (6) used to draw gas from the inside of the chamber assembly (2). When the negative pressure chamber of the chamber assembly (2) is under negative pressure, water is drawn from the external connector (5) into the negative pressure chamber of the chamber assembly (2).

3. The sealing machine with a flushable negative pressure chamber according to claim 2, characterized in that: The sealing machine includes a water box assembly (3) for collecting liquid. The chamber assembly (2), the water box assembly (3) and the air pump (6) are connected in sequence to form a vacuum path. When the chamber assembly (2) is in a vacuum state, the sucked liquid enters the water box assembly (3) and cannot reach the air pump (6).

4. The sealing machine with a flushable negative pressure chamber according to claim 3, characterized in that: The sealing machine includes a pneumatic solenoid valve (7) for inputting positive pressure into the water box assembly (3), and the pneumatic solenoid valve (7) is disposed inside the machine body (1).

5. The sealing machine with a flushable negative pressure chamber according to claim 3, characterized in that: The water box assembly (3) is equipped with a water level sensor (8) for detecting the height of the liquid inside.

6. The sealing machine with a flushable negative pressure chamber according to claim 4, characterized in that: The water box assembly (3) is provided with a first end (301), a second end (302) and a third end (303). The chamber assembly (2) is provided with a first connection end (201), which is connected to the first end (301); the input end of the air pump (6) is connected to the second end (302), the output end of the air solenoid valve (7) is connected to the third end (303), and the output end of the air pump (6) and the input end of the air solenoid valve (7) are both connected to the outside of the water box assembly (3); When the air pump (6) is running, the air solenoid valve (7) is closed, and the air pump (6) draws in the internal gas of the water box assembly (3) and the chamber assembly (2); when the air pump (6) stops running, the air solenoid valve (7) is opened to inflate the water box assembly (3) and the chamber assembly (2).

7. The sealing machine with a flushable negative pressure chamber according to claim 6, characterized in that: The water box assembly (3) includes a shell (304) and a water box (305). The first end (301), the second end (302) and the third end (303) are all disposed on the shell (304). The water box (305) is detachably installed inside the shell (304). A water level sensor (8) is provided on the water box (305) or the shell (304). The probe of the water level sensor (8) is correspondingly disposed in the inner cavity of the water box (305).

8. The sealing machine with a flushable negative pressure chamber according to claim 7, characterized in that: The outer shell (304) is integrally formed with the body (1), or the outer shell (304) is detachably connected to the body (1).

9. The sealing machine with a flushable negative pressure chamber according to claim 1, characterized in that: The external component (5) is detachably installed on the body (1), or the external component (5) is inseparable from the body (1); The body (1) is provided with a plug-in cavity (101), and a sealing element (9) with elastic axial movement is provided in the plug-in cavity (101). A connecting post (102) for connecting the compartment assembly (2) is provided on the plug-in cavity (101). The connecting post (102) has a hollow structure, and the external part (5) is detachably installed in the plug-in cavity (101). The seal (9) blocks the connecting post (102) when the external part (5) is not inserted. When the external part (5) is inserted into the insertion cavity (101), the external part (5) triggers the seal (9) to move in the direction of opening the connecting post (102).

10. The sealing machine with a flushable negative pressure chamber according to claim 3, characterized in that: The hopper assembly (2) is provided with a second connecting end (202), which is connected to the connecting post (102); The external connector (5) is provided with a sealing ring (10) and a liquid inlet notch (501) at the end of the connector (5) inserted into the insertion cavity (101). The insertion cavity (101) is located on the side of the water box assembly (3); The tank assembly (2) is located above the water box assembly (3), the air pump (6) is located on the side of the water box assembly (3), the air solenoid valve (7) is located below the water box assembly (3), and the water box assembly (3) is equipped with a water level sensor (8). The machine body (1) is equipped with a control device, and the air pump (6), air solenoid valve (7), and water level sensor (8) are electrically connected to the control device respectively.

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