Sealing control method for vacuum packaging machine

Abstract

According to the sealing control method of the vacuum packaging machine, in the sealing process, the heating temperature and the sealing duration of a heating assembly can be set, and therefore the sealing control method is not affected by the environment temperature, the sealing effect is stable, and sealing can be conducted in the drying state and the dehumidifying state. The continuous working time can be greatly prolonged through temperature control, and the effect of no overheating can be basically achieved. The continuous working time during liquid sealing is far longer than the working time during liquid sealing in the prior art, and the sealing effect is good.

Description

Technical Field

[0001] The present invention relates to the technical field of vacuum packaging machine control, and more specifically to a sealing control method for a vacuum packaging machine. Background Art

[0002] A vacuum packaging machine is a device that extracts air from a package, creates a vacuum, and seals it after placing items in a container. This vacuum effectively reduces oxygen levels, inhibits the growth and reproduction of microorganisms, and extends the shelf life of foods and other items, making it a popular choice.

[0003] A vacuum packaging machine consists of a vacuum pump assembly, a sealing assembly, and a control unit. The vacuum pump assembly is the core component, driven by a motor to extract air from the package and create a vacuum environment. The sealing assembly consists of heating strips, a cooling device, and sealing strips. After vacuuming is complete, the heating strips are powered to generate heat, melting the packaging material. The sealing strips then apply pressure to press the packaging material together, creating a hermetic seal. The cooling device rapidly cools the sealing area, ensuring a more secure seal. The control unit typically consists of a control panel, buttons, and indicator lights. These controls include setting parameters such as vacuuming time, sealing time, and vacuum level, as well as starting, stopping, and emergency braking. Existing vacuum packaging machines have the following drawbacks: During use, vacuum packaging machines achieve sealing by controlling the heating time. The temperature of the heating strip is affected by the environment, resulting in poor sealing during the first few attempts. Sealing may also fail if the packaged object contains liquid. Furthermore, there is no upper temperature limit, and repeated attempts to seal can trigger overheating protection, temporarily rendering the machine inoperable. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a sealing control method for a vacuum packaging machine, by which a stable sealing effect can be achieved, the continuous working time can be greatly improved, and the service life of the machine can be extended.

[0005] The technical solution of the present invention is to provide a vacuum packaging machine sealing control method having the following steps: S1: If you select the drying mode, then go to S2; if you select the dehumidification mode, then go to S3; S2, the draining mode, specifically includes the following steps: S201, setting the heating component temperature to T1 and the sealing time to t1; S202, detecting whether the vacuum button is pressed or the single-seal button is pressed; if the vacuum button is pressed, proceeding to step S203; if the single-seal button is pressed, proceeding to step S204; if neither the vacuum button nor the single-seal button is pressed, returning to step S1; S203, complete vacuuming and sealing, and proceed to step S4; S204, complete sealing, and proceed to step S4; S3, dehumidification mode, specifically including the following steps: S301, setting the heating component temperature to T2 and the sealing time to t2; S302, detecting whether the vacuum button is pressed or the single seal button is pressed; if the vacuum button is pressed, proceeding to step S303; if the single seal button is pressed, proceeding to step S304; if neither the vacuum button nor the single seal button is pressed, returning to step S1; S303: Complete vacuuming and sealing, and proceed to step S4; S304, complete sealing, and proceed to step S4; S4. The heating component stops heating.

[0006] After adopting the above structure, the sealing control method of the vacuum packaging machine of the present invention has the following advantages compared with the prior art: The vacuum packaging machine sealing control method of the present invention allows the heating component's heating temperature and sealing duration to be set during the sealing process. This method is unaffected by ambient temperature, provides a stable sealing effect, and enables sealing in both dry and dehumidified states. Temperature control significantly increases continuous operating time, essentially ensuring permanent overheating. The continuous operating time when sealing liquids also far exceeds that of existing methods, resulting in superior sealing results.

[0007] As an improvement, after completing the vacuuming and sealing in step S203, the process proceeds to step S4, which specifically includes the following steps: S2031, the control unit starts the air extraction pump; S2032, check whether the set vacuum degree is reached; if so, proceed to step S2033; if not, return to step S2031; S2033, the control unit controls the air pump to stop working; S2034, the control unit controls the heating component to heat; S2035, the temperature sensor detects whether the heating component is heated to the set temperature T1, if so, proceeding to step S2036; if not, returning to step S2034; S2036, the control unit controls the timer to start timing; S2037, check whether the time counted by the timer is less than t1; if so, proceed to step S2038; if not, proceed to step S4; S2038, the temperature sensor detects whether the heating component is heated to the set temperature T1, if so, return to step S2037; if not, return to step S2039; S2039, the control unit controls the heating component to heat; S20310. Return to step S2038.

[0008] As an improvement, step S204 is completed, and the process proceeds to step S4, which specifically includes the following steps: S2041, the control unit controls the heating component to heat; S2042, the temperature sensor detects whether the heating component is heated to the set temperature T1, if so, proceeding to step S2043; if not, returning to step S2041; S2043, the control unit controls the timer to start timing; S2044, check whether the time counted by the timer is less than t1; if so, proceed to step S2045; if not, proceed to step S4; S2045, the temperature sensor detects whether the heating component is heated to the set temperature T1, if so, return to step S2044; if not, return to step S2046; S2046, the control unit controls the heating component to heat; S2047. Return to step S2045.

[0009] As an improvement, after completing vacuuming and sealing in step S303, the process proceeds to step S4, which specifically includes the following steps: S3031, the control unit starts the air extraction pump; S3032, check whether the set vacuum degree is reached; if so, proceed to step S3033; if not, return to step S3031; S3033, the control unit controls the air pump to stop working; S3034, the control unit controls the heating component to heat; S3035, the temperature sensor detects whether the heating component is heated to the set temperature T2, if so, proceeding to step S3036; if not, returning to step S3034; S3036, the control unit controls the timer to start timing; S3037, check whether the time counted by the timer is less than t2; if so, proceed to step S3038; if not, proceed to step S4; S3038, the temperature sensor detects whether the heating component is heated to the set temperature T2, if so, returning to step S3037; if not, returning to step S3039; S3039, the control unit controls the heating component to heat; S30310. Return to step S3038.

[0010] As an improvement, step S304 is completed, and the process proceeds to step S4, which specifically includes the following steps: S3041, the control unit controls the heating component to heat; S3042, the temperature sensor detects whether the heating component is heated to the set temperature T2, if so, proceeding to step S3043; if not, returning to step S3041; S3043, the control unit controls the timer to start timing; S3044, check whether the time counted by the timer is less than t2; if so, proceed to step S3045; if not, proceed to step S4; S3045, the temperature sensor detects whether the heating component is heated to the set temperature T1, if so, return to step S3044; if not, return to step S3046; S3046, the control unit controls the heating component to heat; S3047. Return to step S3045. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 1 is a circuit block diagram of the vacuum packaging machine in the present invention.

[0012] Figure 2 The figure is a flow chart of the control method of the vacuum packaging machine sealing control method (under vacuum state) of the present invention.

[0013] Figure 3 The figure is a flow chart of the sealing control method (under single sealing state) of the vacuum packaging machine of the present invention. DETAILED DESCRIPTION

[0014] In order to better understand the present application, various aspects of the present application will be described in more detail with reference to the accompanying drawings. It should be understood that these detailed descriptions are merely descriptions of exemplary embodiments of the present application and are not intended to limit the scope of the present application in any way. Throughout the specification, the same reference numerals refer to the same elements.

[0015] In the drawings, the thickness, size and shape of objects have been slightly exaggerated for ease of explanation. The drawings are only examples and are not drawn strictly to scale.

[0016] It should also be understood that the terms “comprises,” “has,” “includes,” and “comprising,” when used in this specification, indicate the presence of the stated features, integers, steps, operations, elements, and / or parts, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, parts, and / or combinations thereof.

[0017] like Figure 1 As shown, the present application discloses a sealing control method for a vacuum packaging machine, wherein the vacuum packaging machine includes a vacuum pump assembly, a sealing assembly and a control unit.

[0018] The vacuum pump assembly is a core component, consisting of a vacuum pump and a vacuum pump drive module. The vacuum pump drive module drives the vacuum pump to extract air from the package, creating a vacuum environment. The sealing assembly includes a heating element, a cooling device, and a sealing strip.

[0019] The heating assembly includes a heating wire and a heating wire drive module. The heating wire is connected to the heating wire drive module, which is used to drive the heating wire. After vacuuming is completed, the heating strip is powered on to generate heat, melting the packaging material. The sealing strip then applies pressure to press the packaging material together, forming a hermetic seal. The cooling device is used to rapidly cool the sealing area, ensuring a more secure seal.

[0020] The control unit includes a main control chip, buttons, indicator lights, and sensors, which are used to control the working process of the vacuum packaging machine, including setting parameters such as vacuuming time, sealing time, vacuum degree, and operations such as start, stop, and emergency braking. The buttons include a dry / wet button, a vacuuming button, and a single sealing button. The sensors include a temperature sensor, an overheating temperature sensor, and a vacuum degree sensor. The temperature sensor is a heating wire temperature probe, which is connected to the main control chip. The heating wire temperature probe is used to detect the heating temperature of the heating strip of the sealing assembly. The overheating temperature probe is located at the shell to detect the shell temperature at the heating wire. The vacuum degree sensor is connected to the vacuum chamber through an air path to detect the vacuum degree of the environment in which the extracted items are located.

[0021] A sealing control method for a vacuum packaging machine comprises the following steps: S0. The main control chip of the control unit scans the dry / wet button.

[0022] S1: If you select the drying mode, then go to S2. If you select the dehumidification mode, then go to S3.

[0023] S2, the draining mode, specifically includes the following steps: S201, setting the temperature of the heating component to T1 and the sealing time to t1.

[0024] S202: Check whether the vacuum button is pressed or the single seal button is pressed. If the vacuum button is pressed, proceed to step S203. If the single seal button is pressed, proceed to step S204. If neither the vacuum button nor the single seal button is pressed, return to step S1.

[0025] S203: Complete vacuuming and sealing, and proceed to step S4. The specific steps are as follows: S2031. The control unit starts the air extraction pump.

[0026] S2032: Check whether the set vacuum degree is reached. If yes, proceed to step S2033. If no, return to step S2031.

[0027] S2033: The control unit controls the vacuum pump to stop working.

[0028] S2034. The control unit controls the heating component to heat.

[0029] S2035: The temperature sensor detects whether the heating component has been heated to the set temperature T1. If so, the process proceeds to step S2036. If not, the process returns to step S2034.

[0030] S2036: The control unit controls the timer to start timing.

[0031] S2037: Check whether the time counted by the timer is less than t1. If so, proceed to step S2038. If not, proceed to step S4.

[0032] S2038: The temperature sensor detects whether the heating component has been heated to the set temperature T1. If so, the process returns to step S2037. If not, the process returns to step S2039.

[0033] S2039. The control unit controls the heating component to heat.

[0034] S20310. Return to step S2038.

[0035] S204: Complete the sealing and proceed to step S4. This specifically includes the following steps: S2041. The control unit controls the heating component to heat.

[0036] S2042: The temperature sensor detects whether the heating component has been heated to the set temperature T1. If so, the process proceeds to step S2043. If not, the process returns to step S2041.

[0037] S2043: The control unit controls the timer to start timing.

[0038] S2044: Check whether the time counted by the timer is less than t1. If so, proceed to step S2045. If not, proceed to step S4.

[0039] S2045: The temperature sensor detects whether the heating component has been heated to the set temperature T1. If so, the process returns to step S2044. If not, the process returns to step S2046.

[0040] S2046. The control unit controls the heating component to heat.

[0041] S2047. Return to step S2045.

[0042] S3, dehumidification mode, specifically including the following steps: S301, setting the temperature of the heating component to T2 and the sealing time to t2.

[0043] S302: Check whether the vacuum button is pressed or the single seal button is pressed. If the vacuum button is pressed, proceed to step S303. If the single seal button is pressed, proceed to step S304. If neither the vacuum button nor the single seal button is pressed, return to step S1.

[0044] S303: Complete vacuuming and sealing, and proceed to step S4. Specifically, it includes the following steps: S3031. The control unit starts the air extraction pump.

[0045] S3032: Check whether the set vacuum degree is reached. If yes, proceed to step S3033. If not, return to step S3031.

[0046] S3033. The control unit controls the vacuum pump to stop working.

[0047] S3034. The control unit controls the heating component to heat.

[0048] S3035: The temperature sensor detects whether the heating component has been heated to the set temperature T2. If so, the process proceeds to step S3036. If not, the process returns to step S3034.

[0049] S3036: The control unit controls the timer to start timing.

[0050] S3037: Check whether the time counted by the timer is less than t2. If so, proceed to step S3038. If not, proceed to step S4.

[0051] S3038: The temperature sensor detects whether the heating component has been heated to the set temperature T2. If so, the process returns to step S3037. If not, the process returns to step S3039.

[0052] S3039. The control unit controls the heating component to heat.

[0053] S30310. Return to step S3038.

[0054] S304: Complete the sealing and proceed to step S4. This specifically includes the following steps: S3041. The control unit controls the heating component to heat.

[0055] S3042: The temperature sensor detects whether the heating component has been heated to the set temperature T2. If so, the process proceeds to step S3043. If not, the process returns to step S3041.

[0056] S3043. The control unit controls the timer to start timing.

[0057] S3044: Check whether the time counted by the timer is less than t2. If so, proceed to step S3045. If not, proceed to step S4.

[0058] S3045: The temperature sensor detects whether the heating component has been heated to the set temperature T1. If so, the process returns to step S3044. If not, the process returns to step S3046.

[0059] S3046. The control unit controls the heating component to heat.

[0060] S3047. Return to step S3045.

[0061] S4. The heating component stops heating.

[0062] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the principles and spirit of the present application are included in the scope of protection of the present application.

Claims

1. A sealing control method for a vacuum packaging machine, characterized in that: The following steps are involved: S1: If you select the drying mode, then go to S2; if you select the dehumidification mode, then go to S3; S2, the draining mode, specifically includes the following steps: S201, setting the heating component temperature to T1 and the sealing time to t1; S202, detecting whether the vacuum button is pressed or the single-seal button is pressed; if the vacuum button is pressed, proceeding to step S203; if the single-seal button is pressed, proceeding to step S204; if neither the vacuum button nor the single-seal button is pressed, returning to step S1; S203, complete vacuuming and sealing, and proceed to step S4; S204, complete sealing, and proceed to step S4; S3, dehumidification mode, specifically including the following steps: S301, setting the heating component temperature to T2 and the sealing time to t2; S302, detecting whether the vacuum button is pressed or the single seal button is pressed; if the vacuum button is pressed, proceeding to step S303; if the single seal button is pressed, proceeding to step S304; if neither the vacuum button nor the single seal button is pressed, returning to step S1; S303: Complete vacuuming and sealing, and proceed to step S4; S304, complete sealing, and proceed to step S4; S4. The heating component stops heating.

2. The sealing control method of a vacuum packaging machine according to claim 1, characterized in that: Step S203: Complete vacuuming and sealing, and proceed to step S4, which specifically includes the following steps: S2031, the control unit starts the air extraction pump; S2032, check whether the set vacuum degree is reached; if so, proceed to step S2033; if not, return to step S2031; S2033, the control unit controls the air pump to stop working; S2034, the control unit controls the heating component to heat; S2035, the temperature sensor detects whether the heating component is heated to the set temperature T1, if so, proceeding to step S2036; if not, returning to step S2034; S2036, the control unit controls the timer to start timing; S2037, check whether the time counted by the timer is less than t1; if so, proceed to step S2038; if not, proceed to step S4; S2038, the temperature sensor detects whether the heating component is heated to the set temperature T1, if so, return to step S2037; if not, return to step S2039; S2039, the control unit controls the heating component to heat; S20310. Return to step S2038.

3. The sealing control method of a vacuum packaging machine according to claim 1, characterized in that: Step S204: After sealing is completed, proceed to step S4, which specifically includes the following steps: S2041, the control unit controls the heating component to heat; S2042, the temperature sensor detects whether the heating component is heated to the set temperature T1, if so, proceeding to step S2043; if not, returning to step S2041; S2043, the control unit controls the timer to start timing; S2044, check whether the time counted by the timer is less than t1; if so, proceed to step S2045; if not, proceed to step S4; S2045, the temperature sensor detects whether the heating component is heated to the set temperature T1, if so, return to step S2044; if not, return to step S2046; S2046, the control unit controls the heating component to heat; S2047. Return to step S2045.

4. The sealing control method of a vacuum packaging machine according to claim 1, characterized in that: Step S303: Complete vacuuming and sealing, and proceed to step S4, which specifically includes the following steps: S3031, the control unit starts the air extraction pump; S3032, check whether the set vacuum degree is reached; if so, proceed to step S3033; if not, return to step S3031; S3033, the control unit controls the air pump to stop working; S3034, the control unit controls the heating component to heat; S3035, the temperature sensor detects whether the heating component is heated to the set temperature T2, if so, proceeding to step S3036; if not, returning to step S3034; S3036, the control unit controls the timer to start timing; S3037, check whether the time counted by the timer is less than t2; if so, proceed to step S3038; if not, proceed to step S4; S3038, the temperature sensor detects whether the heating component is heated to the set temperature T2, if so, returning to step S3037; if not, returning to step S3039; S3039, the control unit controls the heating component to heat; S30310. Return to step S3038.

5. The sealing control method of a vacuum packaging machine according to claim 1, characterized in that: Step S304: After sealing is completed, proceed to step S4, which specifically includes the following steps: S3041, the control unit controls the heating component to heat; S3042, the temperature sensor detects whether the heating component is heated to the set temperature T2, if so, proceeding to step S3043; if not, returning to step S3041; S3043, the control unit controls the timer to start timing; S3044, check whether the time counted by the timer is less than t2; if so, proceed to step S3045; if not, proceed to step S4; S3045, the temperature sensor detects whether the heating component is heated to the set temperature T1, if so, return to step S3044; if not, return to step S3046; S3046, the control unit controls the heating component to heat; S3047. Return to step S3045.

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