Vacuum sealing machine with negative pressure precise control mechanism

Abstract

The utility model discloses a vacuum sealing machine with a negative pressure precise control mechanism. The vacuum sealing machine comprises a machine body and a machine cover rotationally arranged on the machine body, and a vacuum cavity is formed between the machine cover and the machine body. The negative pressure precise control assembly is arranged in the machine cover; the control panel is used for controlling the negative pressure precise control assembly; the controller, the time control module and the switcher are used in cooperation, the vacuum sealing machine can accurately control the power output and the work period of the air blowing motor, the direction of airflow and whether the airflow is communicated with the vacuum cavity can be controlled through the switcher, and through adjustment of the switcher, the air flow can be accurately controlled. The air flow channel between the air blowing motor and the vacuum cavity can be opened or closed, the switcher cuts off the conduction state between the vacuum cavity and the outside when vacuumizing operation is carried out, and the switcher opens the conduction state between the vacuum cavity and the outside when vacuumizing operation is completed, so that the intensity and the duration time of negative pressure in the vacuum cavity can be adjusted, and the vacuumizing efficiency is improved. And high-precision sealing work is realized.

Description

Technical Field

[0001] The utility model discloses a vacuum sealing machine with a negative pressure precision control mechanism, belonging to the technical field of vacuum sealing machines. Background Art

[0002] A vacuum sealer is a device that uses vacuum technology to extract the air from a packaging container and seal it. This device is mainly used in the food, pharmaceutical, chemical and other industries to extend the shelf life of products and maintain product quality. The vacuum sealer extracts the air from the container to create a negative pressure environment, and seals the opening using heat sealing technology to ensure that the bag is in a sealed vacuum state or contains a small amount of protective gas.

[0003] Due to the inaccuracy of negative pressure control during use, the existing vacuum sealing machines cannot effectively guarantee the sealing quality of vacuum bags and the shelf life of products. This is mainly attributed to the inability of traditional vacuum sealing machines to accurately control the negative pressure level in the vacuum chamber. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a vacuum sealing machine with a negative pressure precision control mechanism to solve the problems of the prior art.

[0005] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0006] A vacuum sealing machine with a negative pressure precision control mechanism comprises: a machine body, a machine cover rotatably arranged on the machine body, and a vacuum chamber is arranged between the machine cover and the machine body;

[0007] A negative pressure precision control component disposed inside the cover and a control panel for controlling the negative pressure precision control component;

[0008] The negative pressure precision control component includes an air supply component fixedly mounted inside the cover, and a switch for controlling the airflow direction of the air supply component, the air supply component and the switch are connected through a hose, and the switch is connected through a vacuum chamber of the hose;

[0009] A time control module for adjusting the start time of the air blowing motor, wherein the control panel is electrically connected to the time control module;

[0010] By switching the switch, the communication passage between the gas delivery component and the vacuum chamber is opened, and the control panel and the time control module cooperate to control the gas delivery component to accurately start and stop and accurately regulate the negative pressure inside the vacuum chamber.

[0011] As a further improvement, the switch is a solenoid valve, which is provided with a first interface and a second interface, the first interface is connected to the output end of the gas delivery component through a hose, and the second interface is connected to the vacuum chamber through a hose.

[0012] As a further improvement, the air delivery assembly includes an air blowing motor, and the air blowing motor is electrically connected to the control board.

[0013] As a further improvement, the outer layer of the blowing motor is covered with sound insulation cotton.

[0014] As a further improvement, the gas delivery assembly includes an external interface arranged on the blowing motor, and the external interface is connected to an external gas cylinder through a hose.

[0015] As a further improvement, the gas delivery assembly also includes a gas regulator, and the gas regulator is connected to the first interface and the external gas cylinder through a hose.

[0016] As a further improvement, the machine cover includes a main cover body and an upper cover installed above the main cover body, the upper cover is fixed above the main cover body by bolts, and the blowing motor, switch, and air delivery assembly are all fixed to the main cover body by bolts.

[0017] As a further improvement, the control panel is installed on the inner side of the upper cover by bolts.

[0018] The beneficial effects of the utility model are:

[0019] The utility model uses a control board, a time control module and a switch in combination, so that the vacuum sealing machine can accurately control the power output and the working cycle of the blowing motor, and the direction of the airflow and whether it is connected to the vacuum chamber can be controlled by the switch. The airflow channel between the blowing motor and the vacuum chamber can be opened or closed by adjusting the switch. When the vacuum operation is performed, the switch cuts off the conduction state between the vacuum chamber and the outside. When the vacuum operation is completed, the switch opens the conduction state between the vacuum chamber and the outside. Therefore, the strength and duration of the negative pressure in the vacuum chamber can be adjusted to achieve high-precision sealing work. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1The utility model is a schematic diagram of the internal structure of a cover of a vacuum sealing machine with a negative pressure precision control mechanism.

[0022] Figure 2 The utility model is a three-dimensional structural schematic diagram of a vacuum sealing machine with a negative pressure precision control mechanism.

[0023] Figure 3 It is a control schematic diagram of a negative pressure precision control component of the utility model.

[0024] Figure 4 It is a connection schematic diagram of a hose of the utility model.

[0025] Figure 5 It is a control schematic diagram of another embodiment of a negative pressure precision control component of the utility model.

[0026] Figure 6 It is a connection diagram of another embodiment of a hose of the utility model.

[0027] 1. Machine body; 2. Machine cover; 3. Vacuum chamber; 41. Control panel; 42. Solenoid valve; 43. Hose; 421. First interface; 422. Second interface; 44. Blowing motor; 45. Time control module; 441. External interface; 46. Gas cylinder; 47. Gas regulator; 21. Main cover; 22. Upper cover; 442. Sound insulation cotton. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0029] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0030] Reference Figure 1-4 As shown, a vacuum sealing machine with a negative pressure precision control mechanism comprises:

[0031] A body 1, a cover 2 rotatably arranged on the body 1, and a vacuum chamber 3 is provided between the cover 2 and the body 1;

[0032] A negative pressure precision control component disposed inside the cover 2 and a control panel 41 for controlling the negative pressure precision control component;

[0033] The negative pressure precision control component includes an air supply component fixedly mounted inside the cover 2, and a switch for controlling the airflow direction of the air supply component, the air supply component and the switch are connected through a hose 43, and the switch is connected to the vacuum chamber 3 through the hose 43;

[0034] A time control module 45 for adjusting the start time of the air blowing motor 44, wherein the control board is electrically connected to the time control module 45;

[0035] By switching the switch, the communication passage between the gas delivery component and the vacuum chamber 3 is opened, and the control panel and the time control module 45 cooperate with each other to control the gas delivery component to accurately start and stop and accurately regulate the negative pressure inside the vacuum chamber 3.

[0036] By using the control board, the time control module 45 and the switch in combination, the vacuum sealing machine can accurately control the power output and working cycle of the blowing motor 44, and the direction of the airflow and whether it is connected to the vacuum chamber 3 can be controlled by the switch. By adjusting the switch, the airflow channel between the blowing motor 44 and the vacuum chamber 3 can be opened or closed. When the vacuum operation is performed, the switch cuts off the conduction state between the vacuum chamber 3 and the outside. When the vacuum operation is completed, the switch opens the conduction state between the vacuum chamber 3 and the outside. Therefore, the strength and duration of the negative pressure in the vacuum chamber 3 can be adjusted to achieve high-precision sealing work.

[0037] The switch is a solenoid valve 42 , which is provided with a first interface 421 and a second interface 422 . The first interface 421 is connected to the output end of the gas delivery component through a hose 43 , and the second interface 422 is connected to the vacuum chamber 3 through a hose 43 .

[0038] Since the electromagnetic valve 42 can quickly respond to changes in the control signal, the airflow can be quickly opened and closed. In this way, the flow of gas can be accurately controlled.

[0039] By switching the solenoid valve 42, it is easy to switch between vacuuming and inflation, which provides a high degree of control over the packaging process.

[0040] The pipeline layout is simplified by connecting the interface of the solenoid valve 42 to the gas delivery component and the vacuum chamber 3. This design reduces the number of components required and the complexity of the connection, reduces potential leakage points, and thus improves the reliability of the system.

[0041] The air delivery assembly includes a blow motor 44, and the blow motor 44 is electrically connected to the control board 41. Since the blow motor 44 generates certain noise when working, especially in a vacuum sealer with good sealing performance, this noise may be amplified. The outer layer of the blow motor 44 is covered with sound insulation cotton 442.

[0042] By covering the outer layer with sound insulation cotton 442, the noise generated by the blower motor 44 can be effectively reduced, and the comfort of the operating environment can be improved. A high noise environment may have a negative impact on the health of operators, such as causing ear fatigue and hearing loss. By reducing noise, the working environment can be improved, potential health risks can be reduced, and work safety can be improved.

[0043] At the same time, the sound insulation cotton 442 can not only reduce the spread of external noise, but also play a certain degree of protection role, reduce the impact of external environmental factors on the blowing motor 44, extend its service life and reduce maintenance costs.

[0044] The machine cover 2 includes a main cover body 21 and an upper cover 22 installed above the main cover body 21. The upper cover 22 is fixed above the main cover body 21 by bolts. The blowing motor 44, the switch, and the air supply assembly are all fixed on the main cover body 21 by bolts.

[0045] The control panel 41 is installed on the inner side of the upper cover 22 by means of bolts.

[0046] Example 2

[0047] like Figure 2 As shown, this embodiment is basically the same as Embodiment 1, except that the gas delivery assembly includes an external interface 441 disposed on the blowing motor 44 , and the external interface 441 is connected to an external gas source via a hose 43 .

[0048] By connecting the blow motor 44 to the external gas cylinder 46, the vacuum sealer can use an external gas source, which means that the machine does not completely rely on the airflow generated by the built-in blow motor 44, but can obtain additional compressed air or specific gas from the external gas cylinder 46 as needed. This setting improves the flexibility and applicability of the equipment, especially in applications that require a special gas environment (such as inert gas sealing).

[0049] Example 3

[0050] like Figure 5-6 As shown, this embodiment is basically the same as embodiment 1, except that:

[0051] The gas delivery assembly further includes a gas regulator 47 , and the gas regulator 47 is connected to the first interface 421 and the external gas cylinder 46 via a hose 43 .

[0052] The introduction of the gas regulator 47 can ensure that the gas supplied from the external gas cylinder 46 can meet the requirements of the vacuum sealer in terms of pressure and flow. The gas regulator 47 can accurately adjust the pressure and flow of the gas to ensure that the gas delivered to the vacuum chamber 3 is stable and controllable at any time point, thereby improving the sealing quality and efficiency.

[0053] When using an external gas cylinder 46 as a gas source, safety is particularly important, especially when flammable gases or gases with special storage requirements are involved. The gas regulator 47 can effectively control the supply of gas to avoid equipment damage or safety accidents caused by excessive pressure, while ensuring the safety of operators.

[0054] Different sealing materials and products may require different gas environments to achieve the best sealing effect. By using an external gas cylinder 46 in conjunction with a gas regulator 47, different types of gas can be easily switched or the parameters of the gas supply can be adjusted, so that the vacuum sealer can adapt to a wider range of product and material requirements.

[0055] It should be noted that the equipment structure and drawings of the utility model mainly describe the principle of the utility model. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above utility model, the details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a control panel, and the control circuit of the control panel can be realized by simple programming by the technical personnel in this field;

[0056] The standard parts used therein can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the structures and principles of the components known to technical personnel in this field can be known by these technical personnel through technical manuals or through conventional experimental methods.

[0057] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A vacuum sealer with a negative pressure precision control mechanism, characterized in that: include: A machine body (1), a machine cover (2) rotatably arranged on the machine body (1), and a vacuum chamber (3) is provided between the machine cover (2) and the machine body (1); A negative pressure precision control component disposed inside the cover (2) and a control panel (41) for controlling the negative pressure precision control component; The negative pressure precision control component comprises an air supply component fixedly mounted inside the cover (2), and a switch for controlling the airflow direction of the air supply component, the air supply component and the switch are connected via a hose (43), and the switch is connected to the vacuum chamber (3) via the hose (43); A time control module (45) for adjusting the start time of the air blowing motor (44), wherein the control panel (41) is electrically connected to the time control module (45); By switching the switch, the communication path between the gas delivery component and the vacuum chamber (3) is opened, and the control panel (41) and the time control module (45) cooperate to control the gas delivery component to start and stop accurately and precisely regulate the negative pressure inside the vacuum chamber (3).

2. A vacuum sealer with a negative pressure precision control mechanism according to claim 1, characterized in that: The switch is a solenoid valve (42), and the solenoid valve (42) is provided with a first interface (421) and a second interface (422), the first interface (421) is connected to the output end of the gas delivery component through a hose (43), and the second interface (422) is connected to the vacuum chamber (3) through a hose (43).

3. The vacuum sealer with negative pressure precise control mechanism according to claim 1, characterized in that: The air delivery assembly comprises an air blowing motor (44), and the air blowing motor (44) is electrically connected to the control panel (41).

4. A vacuum sealer with a negative pressure precision control mechanism according to claim 3, characterized in that: The outer layer of the blowing motor (44) is covered with sound insulation cotton (442).

5. The vacuum sealer with negative pressure precise control mechanism according to claim 1, characterized in that: The gas delivery assembly comprises an external interface (441) arranged on the air blowing motor (44), and the external interface (441) is connected to an external gas source through a hose (43).

6. The vacuum sealer with negative pressure precise control mechanism according to claim 2, characterized in that: The gas delivery assembly further comprises a gas regulator (47), wherein the gas regulator (47) is connected to the first interface (421) and the external gas cylinder (46) via a hose (43).

7. The vacuum sealer with negative pressure precise control mechanism according to claim 1, characterized in that: The machine cover (2) comprises a main cover body (21) and an upper cover (22) installed above the main cover body (21); the upper cover (22) is fixed to the main cover body (21) by bolts; and the air blowing motor (44), the switch, and the air delivery assembly are all fixed to the main cover body (21) by bolts.

8. The vacuum sealer with negative pressure precise control mechanism according to claim 7, characterized in that: The control panel (41) is mounted on the inner side of the upper cover (22) by means of bolts.

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