CN216995199U

CN216995199U - Vacuum sealing machine capable of automatically identifying dryness and wetness

Info

Publication number: CN216995199U
Application number: CN202122313206.8U
Authority: CN
Inventors: 彭海波
Original assignee: Guangdong Bangze Chuangke Electric Appliance Co Ltd
Current assignee: Guangdong Bangze Chuangke Electric Appliance Co Ltd
Priority date: 2021-09-24
Filing date: 2021-09-24
Publication date: 2022-07-19
Anticipated expiration: 2031-09-24

Abstract

The utility model discloses a vacuum sealing machine capable of automatically identifying dryness and wetness.A flip cover or a seat body of the vacuum sealing machine is provided with at least one dryness and wetness sensing component, the dryness and wetness sensing component comprises a PTC constant temperature ceramic heating sheet and a thin film NTC thermistor for detecting the temperature difference of the PTC constant temperature ceramic heating sheet, and a control circuit is respectively and electrically connected with the PTC constant temperature ceramic heating sheet and the thin film NTC thermistor. The utility model has simple structure and low cost, can automatically identify the dry and wet conditions of articles or food in the bag in the vacuum-pumping process by detecting the temperature difference of the PTC constant-temperature ceramic heating sheet in unit time in the vacuum-pumping process, and automatically starts the wet-pumping working mode when automatically recognizing that the articles in the bag are filled with liquid, thereby realizing full-automatic vacuum-pumping without manual selection or manual control of a user.

Description

Vacuum sealing machine capable of automatically identifying dryness and wetness

Technical Field

The utility model relates to the technical field of vacuum sealing machines, in particular to a vacuum sealing machine capable of automatically identifying dryness and wetness.

Background

The vacuum sealing machine is provided with a dry pumping function and a wet pumping function, however, the vacuum sealing machine cannot automatically identify the dry and wet conditions of the articles in the vacuum packaging bag, and the vacuum sealing machine cannot automatically start the dry pumping function and the wet pumping function according to the dry and wet conditions of the articles in the bag, so that the vacuum sealing machine cannot realize true full-automatic vacuum pumping, and a user needs to manually select the dry pumping function and the wet pumping function, for example, manually click a corresponding function button arranged on the vacuum sealing machine, so that the vacuum sealing machine starts the dry pumping function or the wet pumping function, and therefore improvement is necessary.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a vacuum sealing machine capable of automatically identifying dryness and wetness, which is simple in structure and low in cost, has the function of automatically identifying dryness and wetness, and realizes full-automatic vacuum pumping.

In order to achieve the purpose, the utility model adopts the technical scheme that: the utility model provides an automatic discernment is wet vacuum capper futilely, which comprises a base, install in the flip of pedestal, the evacuation pump, sack hot melt seal subassembly and control circuit, the evacuation pump is installed in the inner chamber of pedestal or flip, control circuit electricity respectively connects evacuation pump and sack hot melt seal subassembly, flip or pedestal install at least one and do wet response subassembly, do wet response subassembly include PTC constant temperature ceramic heating element and be used for detecting the film NTC thermistor of the temperature difference value of PTC constant temperature ceramic heating element, control circuit is provided with the pulse initiative and detects the interface, the pulse initiative detects the interface and connects PTC constant temperature ceramic heating element and film NTC thermistor respectively electrically.

Furthermore, a self-starting inductor is arranged on the front side of the bottom surface of the flip cover, a starting switch used for controlling or limiting the working state of the vacuum sealing machine is installed at the top of the base body, the flip cover touches the starting switch when the flip cover is locked on the base body, and the control circuit is electrically connected with the self-starting inductor and the starting switch respectively.

Further, the top surface of the front portion of pedestal is provided with a cavity, and a bracket assembly has been put into to the cavity internalization, and the bottom of cavity is provided with a push pedal, and the below of push pedal is provided with push pedal actuating mechanism, and the bracket assembly activity is supported the top at the push pedal, and the upper portion of bracket assembly is provided with one the evacuation groove is provided with the evacuation pipeline in the pedestal, the evacuation pump passes through evacuation pipeline intercommunication evacuation groove.

Further, the top surface of bracket component is fixed with the integral type and seals up the pad, the evacuation groove exposes from seting up the breach at the sealed middle part that fills up of integral type, flip's anterior bottom surface is provided with one and fills up the pad, dry and wet response subassembly is located the front side of upper seal pad position, locks in the pedestal at flip and does wet response subassembly and upper seal pad support respectively in the sealed pad of integral type futilely.

Furthermore, control circuit is provided with futilely wets and takes out mode of operation automatic switching unit, and futilely wets and takes out mode of operation automatic switching unit electricity respectively and connect the evacuation pump sack hot melt seal subassembly with do wet response subassembly, do wet response subassembly setting in sack hot melt seal one side of subassembly.

Further, flip's rear side is rotatory to be installed the upper portion of pedestal, flip's front portion hasp in the front portion of pedestal, sack hot melt seal assembly with dry wet response subassembly is all fixed in flip's anterior bottom surface, dry wet response subassembly and the relative parallel arrangement of sack hot melt seal assembly.

Furthermore, the bag mouth hot melting sealing assembly comprises a metal support arranged transversely, an insulating seat fixed on the bottom surface of the metal support and a heating sheet or a heating wire which is fixed on the bottom surface of the insulating seat and extends transversely; the PTC constant-temperature ceramic heating sheet is fixed on the bottom surface of the metal support, and the thin-film NTC thermistor is fixed at the bottom of the PTC constant-temperature ceramic heating sheet.

Further, the PTC constant temperature ceramic heating piece and the insulating base are fixed on the bottom surface of the metal support side by side, the PTC constant temperature ceramic heating piece is arranged in parallel with the insulating base, and the PTC constant temperature ceramic heating piece and the insulating base are combined to form an active heat pulse detection module electrically connected to the control circuit.

Furthermore, at least one insulating layer is fixed at the bottom of the metal support and covers the PTC constant-temperature ceramic heating sheet and the thin-film NTC thermistor.

Furthermore, the bottom surface of the metal support is transversely provided with two or more dry and wet induction components at intervals.

Compared with the prior art, the utility model has the advantages that: the utility model has simple structure and low cost, has the function of automatically identifying dryness and wetness, detects the temperature difference of the PTC constant-temperature ceramic heating sheet in unit time by the thin-film NTC thermistor in a set frequency period in the vacuumizing process, further automatically identifies the dryness and wetness conditions of articles or food in the bag in the vacuumizing process, automatically starts a wet-pumping working mode when automatically recognizing that the articles in the bag have liquid, realizes full-automatic vacuumizing, and does not need manual selection or manual control of a user.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic view of the internal structure of the present invention.

Fig. 3 is a partially enlarged view of a portion a in fig. 2.

FIG. 4 is a schematic view of the pallet assembly after it has been moved out of the chamber.

The labels in the figure are:

1 seat body.

11 chamber.

13 integral seal.

16 push plate.

2, the cover is turned over.

231 a metal bracket.

232 heating sheet.

235 an insulating layer.

236 insulating seat.

And 24, sealing gaskets are arranged on the sealing plates.

3 a bracket assembly.

31 evacuation tank.

5 self-starting the inductor.

The switch is activated 52.

9 dry and wet sensing assembly.

96-PTC constant temperature ceramic heating sheet.

97 thin film NTC thermistor.

Detailed Description

The utility model provides an automatic discernment is wet vacuum capper futilely, it is shown in fig. 1 to 4, including pedestal 1, install flip 2 in pedestal 1, the evacuation pump, sack hot melt seal subassembly 23 and control circuit, the evacuation pump is installed in pedestal 1 or flip 2's inner chamber, vacuum pump and sack hot melt seal subassembly 23 are connected to the control circuit electricity respectively, a bag body inserted hole has between flip 2 and the pedestal 1, flip 2 or pedestal 1 install at least one and do wet response subassembly 9, do wet response subassembly 9 and include PTC constant temperature ceramic heating element 96 and be used for detecting PTC constant temperature ceramic heating element 96's temperature difference's film NTC thermistor 97, control circuit is provided with the pulse initiative and detects the interface, constant temperature PTC ceramic heating element 96 and film NTC thermistor 97 are connected to the pulse initiative detection interface electricity respectively. The control circuit is provided with a dry and wet pumping working mode automatic switching unit, the dry and wet pumping working mode automatic switching unit is respectively and electrically connected with a vacuum pumping pump, the bag opening hot melting sealing assembly 23 and a dry and wet sensing assembly 9, and the dry and wet sensing assembly 9 is arranged on one side of the bag opening hot melting sealing assembly 23. And automatically switching the vacuum sealing machine into a dry pumping working mode or a wet pumping working mode through the dry and wet pumping working mode automatic switching unit. The utility model has simple structure and low cost, has the function of automatically identifying dryness and wetness, detects the temperature difference of the PTC constant-temperature ceramic heating sheet 96 in unit time by the thin-film NTC thermistor in a set frequency period in the vacuumizing process, further automatically identifies the dryness and wetness conditions of articles or food in the bag in the vacuumizing process, automatically starts a wet-pumping working mode when automatically recognizing that the articles in the bag have liquid, realizes full-automatic vacuumizing, and does not need manual selection or manual control of a user.

The rear side of the flip cover 2 is rotatably arranged on the upper part of the seat body 1, the front part of the flip cover 2 is locked on the front part of the seat body 1, a bag body insertion opening is formed between the front part of the flip cover 2 and the front part of the seat body 1, and the dry and wet sensing component 9 is arranged above or below the bag body insertion opening, namely, the dry and wet sensing component 9 is fixed at the bottom of the flip cover 2 or at the top of the seat body 1.

Preferably, the bag mouth hot-melt sealing component 23 and the dry-wet sensing component 9 are both fixed on the bottom surface of the front part of the flip cover 2, and the dry-wet sensing component 9 and the bag mouth hot-melt sealing component 23 are arranged in parallel relatively. The bag mouth hot melting sealing assembly 23 comprises a metal bracket 231 arranged transversely, an insulating seat 236 fixed on the bottom surface of the metal bracket 231 and a heating sheet 232 or a heating wire extending transversely and fixed on the bottom surface of the insulating seat 236; the PTC constant temperature ceramic heating sheet 96 is fixed on the bottom surface of the metal bracket 231, and the thin film NTC thermistor 97 is fixed on the bottom of the PTC constant temperature ceramic heating sheet 96. The PTC constant temperature ceramic heating sheet 96 and the insulating base 236 are fixed side by side on the bottom surface of the metal bracket 231, and the PTC constant temperature ceramic heating sheet 96 and the insulating base 236 are arranged in parallel. At least one insulating layer 235 is fixed at the bottom of the metal bracket 231, and the PTC constant temperature ceramic heating sheet 96 and the thin film NTC thermistor 97 are covered by the insulating layer 235. The cross-sectional shape of the metal bracket 231 is a U-shape, and the insulating layer 235 is made of a high-temperature-resistant insulating teflon tape for protecting the PTC constant-temperature ceramic heating sheet 96 and the thin-film NTC thermistor 97.

PTC constant temperature ceramic heating sheet 96 and film NTC thermistor 97 combine together to form an electricity and connect in control circuit's active heat pulse detection module, active heat pulse detection module can arrange the different positions in the entry, utilize the liquid can let PTC constant temperature ceramic heating sheet 96 characteristic of cooling down in the twinkling of an eye, detect the temperature difference value through film NTC, active heat pulse detection module is at the real-time intermittent type nature work of standby state, stop work then in dormancy, through control circuit or the program automatic identification who sets up in control circuit in the dry wet condition of food in the bag.

In an alternative embodiment, two or more dry and wet sensing assemblies 9 are transversely arranged on the bottom surface of the metal bracket 231 at intervals, so as to realize multi-point sensing and improve sensing sensitivity.

During the vacuum pumping process, if the liquid in the bag flows out towards the mouth of the bag, when the liquid in the bag passes through the position of the PTC thermostatic ceramic heating sheet 96, the temperature of the PTC constant temperature ceramic heating sheet 96 is suddenly reduced by using the principle that the constant temperature of the PTC constant temperature ceramic heating sheet 96 is broken by the liquid in the bag flowing through to cause the temperature to suddenly drop, meanwhile, the temperature change of the PTC constant temperature ceramic heating sheet 96 is detected by the thin-film NTC thermistor 97 to judge whether liquid flows, specifically, the temperature difference of the PTC constant temperature ceramic heating sheet 96 in unit time is detected by the thin-film NTC thermistor 97 in a set frequency period in the process of vacuum pumping, and then the dry and wet conditions of the articles or food in the bag can be automatically identified in the vacuumizing process, and the wet vacuumizing working mode is automatically started when the articles in the bag are automatically recognized to contain liquid, so that the full-automatic vacuumizing is realized, and the manual selection or manual control of a user is not needed.

The control circuit may also simultaneously generate an indication signal, for example by various audible and visual indicators to indicate or inform the user that the current operating mode is being indicated or that the operating mode has been automatically changed.

The top surface of the front part of the seat body 1 is provided with a cavity 11, a bracket component 3 is movably arranged in the cavity 11, the bottom of the cavity 11 is provided with a push plate 16, a push plate driving mechanism is arranged below the push plate 16, the bracket component 3 is movably supported above the push plate 16, and the upper part of the bracket component 3 is provided with a vacuumizing groove 31. The top surface of bracket component 3 is fixed with the integral type and seals up 13, evacuation groove 31 exposes from the breach of seting up at the middle part that the integral type sealed fills up 13, the bottom surface of flip 2's front portion is provided with an upper seal pad 24, dry and wet response subassembly 9 is located the front side that the upper seal pad 24 was located, lock in pedestal 1 back through push pedal actuating mechanism drive push pedal 16 at flip 2 and rise and make dry and wet response subassembly 9 and upper seal pad 24 support respectively and push up in the sealed pad 13 of integral type, prepare for the evacuation.

The top surface of the front part of the base body 1 is provided with a vacuumizing groove 31, the vacuumizing groove 31 is positioned at the rear side of the bag body insertion hole, a vacuumizing pump and a vacuumizing pipeline are arranged in the base body 1, the vacuumizing pump is communicated with the vacuumizing groove 31 through the vacuumizing pipeline, vacuumizing is carried out on a vacuum packaging bag through the vacuumizing groove 31, a bag opening of the vacuum packaging bag is sealed by hot melting of a bag opening hot melting sealing component 23, the bottom surface of a dry and wet induction component 9 arranged on the bottom surface of the front part of the flip cover 2 is convexly arranged relative to the bottom surface of the flip cover 2, the PTC constant temperature ceramic heating sheet 96 fixed on the bottom surface of the metal support 231 is convexly arranged relative to the bottom surface of the flip cover 2, the comprehensive contact of the PTC constant temperature ceramic heating sheet 96 is ensured and the vacuum packaging bag is propped, and the sensitivity of temperature change is improved.

The base body 1 is internally provided with a pressure sensor which is provided with an electric connection port and a pressure interface, the electric connection port is electrically connected with a control circuit, the pressure interface is connected with the vacuum-pumping pipeline, whether the vacuum degree of the vacuum-pumping groove 31 or the vacuum packaging bag reaches a corresponding set value or not is automatically judged through the automatic induction of the pressure sensor, and the working state of the vacuum-pumping pump is automatically controlled through the control circuit.

The front side of flip 2's bottom surface is provided with the electricity and connects in control circuit's self-starting inductor 5, pass the back from self-starting inductor 5 below at vacuum packaging bag, control circuit receives self-starting inductor 5's switching signal and automatic start work, bracket assembly 3 corresponds self-starting inductor 5's position and is provided with an response platform, be provided with the response interval between self-starting inductor 5 and the response platform, light-operated inductive switch is chooseed for use to self-starting inductor 5, for example laser correlation sensor or infrared inductor, the response platform is located evacuation groove 31's front side, lock the vertical alignment response platform of self-starting inductor 5 behind pedestal 1 at flip 2, in order to promote the response sensitivity, avoid the false positive. Because light-operated inductive switch has a distance with the response platform of below, when the vacuum packaging bag inserted to target in place, the vacuum packaging bag passed through from light-operated inductive switch below, will touch light-operated inductive switch and automatic start machine, and the response platform can also prevent to lead to the reflection of light when rocking appearing because of the liquid in the evacuation groove 31, and then avoids the light-operated inductive switch of spurious triggering.

The starting switch 52 for controlling or limiting the working state of the vacuum sealing machine is installed at the top of the base body 1, the flip cover 2 touches the starting switch 52 when the flip cover 2 is locked on the base body 1, the self-starting inductor 5 is in the working state only when the starting switch 52 is touched and pressed by the flip cover 2 and is in an electrical conduction state, the starting switch 52 identifies whether the flip cover 2 is in a locking closed state or in a turning open state, the self-starting inductor 5 is prevented from automatically working when the flip cover 2 is in the turning open state, and the self-starting inductor 5 is prevented from being mistakenly identified, so that the vacuum sealing machine automatically works.

Claims

1. The utility model provides an automatic discernment is wet vacuum sealing machine futilely, includes pedestal (1), installs in flip (2) of pedestal (1), evacuation pump, sack hot melt seal subassembly (23) and control circuit, and evacuation pump installs in the inner chamber of pedestal (1) or flip (2), and evacuation pump and sack hot melt seal subassembly (23), its characterized in that are connected to the control circuit electricity respectively: at least one dry-wet sensing component (9) is installed on the flip cover (2) or the seat body (1), the dry-wet sensing component (9) comprises a PTC constant-temperature ceramic heating sheet (96) and a thin film NTC thermistor (97) used for detecting the temperature difference value of the PTC constant-temperature ceramic heating sheet (96), and the control circuit is respectively electrically connected with the PTC constant-temperature ceramic heating sheet (96) and the thin film NTC thermistor (97).

2. The vacuum sealing machine capable of automatically identifying dryness and wetness as claimed in claim 1, wherein: the front side of the bottom surface of the flip cover (2) is provided with a self-starting inductor (5), the top of the base body (1) is provided with a starting switch (52) used for controlling or limiting the working state of the vacuum sealing machine, the flip cover (2) triggers the starting switch (52) when the flip cover (2) is locked on the base body (1), and the control circuit is respectively and electrically connected with the self-starting inductor (5) and the starting switch (52).

3. The vacuum sealing machine capable of automatically identifying dryness and wetness as claimed in claim 1, wherein: the top surface of the front portion of pedestal (1) is provided with a cavity (11), and cavity (11) internalization is put into has a bracket assembly (3), and the bottom of cavity (11) is provided with a push pedal (16), and the below of push pedal (16) is provided with push pedal actuating mechanism, and bracket assembly (3) activity is supported and is pushed up in the top of push pedal (16), and the upper portion of bracket assembly (3) is provided with a evacuation groove (31), is provided with the evacuation pipeline in pedestal (1), the evacuation pump passes through evacuation pipeline intercommunication evacuation groove (31).

4. The vacuum sealing machine capable of automatically identifying dryness and wetness according to claim 3, wherein: the top surface of bracket component (3) is fixed with the sealed pad (13) of integral type, evacuation groove (31) are exposed from the breach of seting up at the middle part that the sealed pad (13) of integral type is sealed, the bottom surface of the front portion of flip (2) is provided with one and seals up pad (24), dry wet response subassembly (9) are located the front side that the sealed pad (24) of upper seal was located, lock in flip (2) behind pedestal (1) dry wet response subassembly (9) and upper seal pad (24) support respectively and push up in the sealed pad (13) of integral type.

5. The vacuum sealing machine capable of automatically identifying dryness and wetness as claimed in any one of claims 1 to 4, wherein: control circuit is provided with futilely wets and takes out mode of operation automatic switching-over unit, and futilely wets and takes out mode of operation automatic switching-over unit electricity respectively and connect the evacuation pump sack hot melt seal subassembly (23) with do wet response subassembly (9), do wet response subassembly (9) and set up in one side of sack hot melt seal subassembly (23).

6. The vacuum sealing machine capable of automatically identifying dryness and wetness as claimed in claim 5, wherein: the rear side of flip (2) is rotatory to be installed the upper portion of pedestal (1), the front lock catch of flip (2) in the front portion of pedestal (1), sack hot melt seal subassembly (23) with dry wet response subassembly (9) are all fixed in the anterior bottom surface of flip (2), dry wet response subassembly (9) and sack hot melt seal subassembly (23) parallel arrangement relatively, and control circuit is provided with pulse initiative detection interface, and pulse initiative detection interface electricity connects PTC constant temperature ceramic heating element (96) and film NTC thermistor (97) respectively.

7. The vacuum sealing machine capable of automatically identifying dryness and wetness as claimed in claim 5, wherein: the bag mouth hot melting sealing assembly (23) comprises a metal support (231) which is transversely arranged, an insulating seat (236) which is fixed on the bottom surface of the metal support (231), and a heating sheet (232) or a heating wire which is transversely extended and is used for fixing the bottom surface of the insulating seat (236); the PTC constant-temperature ceramic heating sheet (96) is fixed on the bottom surface of the metal bracket (231), and the thin-film NTC thermistor (97) is fixed on the bottom of the PTC constant-temperature ceramic heating sheet (96).

8. The vacuum sealing machine capable of automatically identifying dryness and wetness as claimed in claim 7, wherein: the PTC constant-temperature ceramic heating sheet (96) and the insulating seat (236) are fixed on the bottom surface of the metal support (231) side by side, the PTC constant-temperature ceramic heating sheet (96) and the insulating seat (236) are arranged in parallel, and the PTC constant-temperature ceramic heating sheet (96) and the insulating seat (236) are combined to form an active heat pulse detection module electrically connected to the control circuit.

9. The vacuum sealing machine capable of automatically identifying dryness and wetness as claimed in claim 7, wherein: at least one insulating layer (235) is fixed at the bottom of the metal support (231), and the PTC constant-temperature ceramic heating sheet (96) and the thin-film NTC thermistor (97) are coated by the insulating layer (235).

10. The vacuum sealing machine capable of automatically identifying dryness and wetness according to claim 7, wherein: the bottom surface of the metal bracket (231) is transversely provided with two or more dry and wet induction components (9) at intervals.