CN220130441U - Sealing machine - Google Patents

Abstract

The utility model discloses a sealing machine which comprises a base and a cover body which is rotatably connected with the base to form a cover opening position and a cover closing position, wherein the base is provided with a first sealing element, the cover body is provided with a second sealing element, when the cover body is in the cover closing position, the first sealing element and the second sealing element are matched to form a sealing cavity, one of the base and the cover body is provided with a magnetic element, the other of the base and the cover body is provided with a matching element matched with the magnetic element, the polarity of at least one of the magnetic element and the matching element is changeable, the magnetic element and the matching element can enable the base and the cover body to be buckled under the magnetic attraction effect, and the magnetic element and the matching element can enable the base and the cover body to be unlocked under the repulsive interaction. The utility model avoids the condition that the cover body is required to be pressed by both hands of a user, so that the user can operate the cover body by one hand, the effect of conveniently sealing the food bag is achieved, the cover body is conveniently opened by the user, and the use experience of the user is improved.

Description

Sealing machine

Technical Field

The utility model belongs to the technical field of sealing equipment, and particularly relates to a sealing machine.

Background

The capper generally includes the base and rotates the lid of being connected with the base, and when using, the user pressfitting the lid base to make the heating element seal the food bag mouth with the hot melt.

Because the lid and the base of current capper adopt the mode of buckle to close the lid, then make when sealing the food bag, need the user both hands to press the lid, just can make the joint structure of lid cooperate with the joint structure of base, accomplish the closing lid operation of capper. However, when sealing the food bag, the user may need to adjust the position of the food bag, and then the user needs to adjust the position of the food bag and press the cover body, which is inconvenient to use and has poor use experience.

In order to facilitate sealing the food bag, the applicant researches a mode of covering the base by using the magnetic attraction of the magnetic piece, so that the operation difficulty of a user is reduced to a certain extent, and the food bag is convenient for the user to use. However, when the cover is opened, the user is required to overcome the magnetic attraction of the magnetic piece to open the cover body, and then the user is required to apply larger pulling force to the cover body, so that the operation is laborious. Moreover, because the whole machine of the sealing machine has smaller volume and mass, when a user applies larger pulling force to the cover body to lift the cover body, the whole sealing machine is easy to lift, and the use experience is affected.

Disclosure of Invention

The present utility model provides a sealing machine to solve at least one of the above technical problems.

The technical scheme adopted by the utility model is as follows:

the utility model provides a capper, includes the base and with the base rotates to be connected in order to have the lid of uncapping position and closing the lid position, the base is provided with first sealing member, the lid is provided with the second sealing member, the lid is in when closing the lid position, first sealing member with the second sealing member cooperation encloses into sealed chamber, the base with one of them is provided with the magnetic part, another of them be provided with magnetic part complex mating piece, the magnetic part with the polarity of at least one of mating piece is changeable, the magnetic part with the mating piece can make under the magnetic attraction the base with the lid lock, the magnetic part with the mating piece can make under the repulsive interaction the base with the lid releases the lock.

The sealing machine also comprises the following additional technical characteristics:

the magnetic piece is a permanent magnet, a first magnetic pole is arranged on one side of the permanent magnet, facing the matching piece, the matching piece comprises a core body and a coil wound on the periphery of the core body, the coil is provided with a power-off state and a first power-on state, and in the power-off state, the permanent magnet and the core body are mutually attracted to enable the cover body and the base to be buckled;

in the first electrified state, the polarity of one side of the core body, facing the permanent magnet, is the same as the polarity of the first magnetic pole, and the core body and the permanent magnet repel each other so as to enable the base and the cover body to be disengaged.

The sealing machine is further provided with a control unit, the control unit is electrically connected with the coil and is used for controlling the current flow direction in the coil so that the coil is further provided with a second electrifying state, the polarity of the core body towards one side of the permanent magnet is different from that of the first magnetic pole in the second electrifying state, and the core body and the permanent magnet are mutually attracted to enable the cover body to be buckled with the base.

The magnetic piece is arranged on the cover body, and the matching piece is arranged on the base.

The magnetic piece and the matching piece are electromagnets, the sealing machine further comprises a control unit which is connected with the electromagnet in a ferroelectric mode, and the control unit is used for changing the polarity of the magnetic piece and/or the matching piece.

The magnetic part is arranged on the cover body, the matching part is arranged on the base, the base is also provided with a heating component protruding upwards, the cover body is provided with a pressing part protruding downwards corresponding to the heating component, and the lower edge of the pressing part is lower than the lower edge of the magnetic part; and/or, the upper edge of the heating component is higher than the upper edge of the matching piece.

The magnetic piece and/or the matching piece are/is further provided with an elastic part so that the magnetic piece and/or the matching piece can float up and down.

The sealing machine is also provided with a damping piece, and the damping piece is convexly arranged on the base or the cover body; or, the damping piece is arranged at the rotation connection part of the cover body and the base.

The sealing machine further comprises an air extraction piece, wherein the base or the cover body is provided with an air extraction opening communicated with the sealing cavity, and the air extraction piece is communicated with the air extraction opening.

At least one of the magnetic piece and the matching piece is an electromagnet;

in the closing position, the electromagnet is in a second electrifying state, so that polarities of the magnetic piece and the matching piece are different, and the magnetic piece and the matching piece enable the cover body and the base to extrude the first sealing piece and the second sealing piece under the action of magnetic attraction.

By adopting the technical scheme, the utility model has the following beneficial effects:

1. according to the utility model, one of the base and the cover body is provided with the magnetic part, the other one of the base and the cover body is provided with the matching part matched with the magnetic part, and the polarity of at least one of the magnetic part and the matching part is changeable, so that when the cover body moves towards the cover closing position, the magnetic part and the matching part generate a force of mutual attraction under the action of magnetic attraction, thereby assisting the cover closing operation of a user, assisting the user in closing the cover, ensuring that the cover closing process is smoother and saving more labor for the user operation. Along with the closing process, the distance between the magnetic piece and the matching piece is more and more close, and the magnetic attraction between the magnetic piece and the matching piece is more and more large, so that the cover body and the base are buckled under the magnetic attraction effect of the magnetic piece and the matching piece when the cover body moves to the end section formed by closing the cover. And when the lid is in closing the lid position, magnetic part and cooperation piece can increase the buckling force between lid and the base under the magnetic attraction effect, increase the extrusion force between first sealing member and second sealing member, heating element and the pressing member, improve the evacuation effect to and hot melt seal effect.

In addition, the polarity of the magnetic member and/or the mating member is variable so that the two can be switched between a mutually attractive state and a mutually repulsive state. The cover body is opened, the polarity of at least one of the magnetic part and the matching part is controlled to change, so that the polarities of the magnetic part and the matching part close to each other are the same, the interaction force between the magnetic part and the matching part is changed from attraction to mutual repulsion, the base and the cover body can be released from buckling under the repulsive interaction, then the cover body can be rotated to the cover opening position by applying small pulling force to the cover body by a user, the force applied to the cover body by the user is reduced in the process, and the effect of conveniently opening the cover is achieved.

2. As a preferred embodiment of the present utility model, the magnetic member is a permanent magnet, one side of the permanent magnet facing the mating member has a first magnetic pole, the mating member includes a core and a coil wound around the periphery of the core, the coil has a power-off state and a first power-on state, and in the power-off state, the permanent magnet and the core attract each other to fasten the cover and the base; in the first electrified state, the polarity of the side of the core body facing the permanent magnet is the same as that of the first magnetic pole. In the power-off state, no current exists in the coil, the core body is nonpolar, the magnetic part is a permanent magnet, and the magnetic part and the core body can generate attractive force for mutual attraction so as to achieve the effect of assisting in closing the cover. In the first electrified state, the coil is internally provided with current, the core body is magnetized under the action of the current, the polarity of one side of the core body facing the permanent magnet is the same as that of the first magnetic pole, and then the polarity of the core body facing the permanent magnet is mutually exclusive acting force is generated, so that the base and the cover body are released from buckling and are sprung out, the coil is electrified only when the cover is opened, the coil is not required to be electrified in the cover closing process of the cover body, the control difficulty of the matching piece is reduced, the working reliability is improved, and the cost is saved.

3. As a preferred embodiment of the present utility model, the sealing machine is further provided with a control unit, the control unit is electrically connected with the coil, and is configured to control a current flow direction in the coil, so that the coil further has a second energizing state, and in the second energizing state, a polarity of the core facing the permanent magnet is different from a polarity of the permanent magnet, so that the coil can be energized in a process of closing the cover, the control unit makes the coil in the second energizing state, so that a polarity of the core facing the permanent magnet is different from a polarity of the first magnetic pole, so that a magnetic attraction force between the core and the permanent magnet is greatly increased, and then a closing speed of the cover is increased, and a larger auxiliary force is provided by a magnetic attraction effect, so that a user can more labor-saving a closing operation. In addition, the magnetic attraction between the permanent magnet and the core body can be increased, so that the pressure of the cover body on the food bag is increased, and the sealing effect of the sealing machine is further improved.

4. As a preferred embodiment of the utility model, the magnetic piece and/or the matching piece is/are further provided with an elastic part, so that the magnetic piece and/or the matching piece can float up and down, the distance between the magnetic piece and the matching piece when the cover body is in the cover closing position is reduced, even the magnetic piece and the matching piece can be contacted when the cover body is in the cover closing position, the cover of the cover body is more compact, the cover closing gap is reduced, the pressure applied to the food bag by the cover body is increased, and the sealing effect of the sealing machine is further improved. In addition, when uncapping the lid, magnetic part and cooperation piece are removed towards the direction of keeping away from each other under the effect of repulsion, form the extrusion to the elastic part, increase the clearance between magnetic part and the cooperation piece to be convenient for the user stretch into the lid with the hand and base between exert a force to the lid, and then reach the effect of being convenient for uncap the lid.

5. As a preferred implementation mode of the utility model, the sealing machine further comprises an air extraction piece, the base or the cover body is provided with an air extraction opening communicated with the sealing cavity, and the air extraction piece is communicated with the air extraction opening, so that the air extraction piece can vacuumize the food bag through the air extraction opening and the sealing cavity, thereby realizing vacuum sealing of the food bag, improving the safety effect and improving the use experience of users.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:

fig. 1 is a schematic structural view of a sealing machine according to an embodiment of the present utility model;

FIG. 2 is a schematic view of a sealing machine according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a sealing machine according to an embodiment of the present utility model;

FIG. 4 is a schematic view of a portion of a sealing machine according to an embodiment of the present utility model;

FIG. 5 is a cross-sectional view of a portion of the sealing machine according to an embodiment of the present utility model, mainly showing the state of the cover in the closed position;

fig. 6 is a schematic view of a part of the structure of the sealing machine according to an embodiment of the present utility model, mainly showing a state of the cover in the open position;

fig. 7 is an enlarged view of the portion a in fig. 6.

Reference numerals:

1. a base; 11. a first seal; 111. sealing the cavity; 12. a heating component;

2. a cover body; 21. a second seal; 211. abutting against the plane; 22. a pressing member;

3. a magnetic member;

4. and a mating member.

Detailed Description

In order to more clearly illustrate the general inventive concept, a detailed description is given below by way of example with reference to the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced in other ways than those described herein, and therefore the scope of the present utility model is not limited to the specific embodiments disclosed below.

In addition, in the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "top", "bottom", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. In the description of the present specification, the descriptions of the terms "implementation," "embodiment," "one embodiment," "example," or "particular example" and the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Referring to fig. 1 to 7, a sealing machine comprises a base 1 and a cover body 2 rotatably connected with the base 1 to have a cover opening position and a cover closing position, wherein the base 1 is provided with a first sealing element 11, the cover body 2 is provided with a second sealing element 21, when the cover body 2 is in the cover closing position, the first sealing element 11 and the second sealing element 21 are combined to form a sealing cavity 111, one of the base 1 and the cover body 2 is provided with a magnetic element 3, the other one of the base 1 and the cover body 2 is provided with a matching element 4 matched with the magnetic element 3, the polarity of at least one of the magnetic element 3 and the matching element 4 is changeable, the magnetic element 3 and the matching element 4 can enable the base 1 and the cover body 2 to be buckled under the magnetic attraction, and the magnetic element 3 and the matching element 4 can enable the base 1 and the cover body 2 to be unbuckled under the repulsive interaction.

According to the utility model, one of the base 1 and the cover body 2 is provided with the magnetic part 3, the other one of the base 1 and the cover body 2 is provided with the matching part 4 matched with the magnetic part 3, and the polarity of at least one of the magnetic part 3 and the matching part 4 is changeable, so that when the cover body 2 moves towards the cover closing position, the magnetic part 3 and the matching part 4 generate a force of mutual attraction under the action of magnetic attraction, thereby assisting the cover closing operation of a user, assisting the user in closing the cover, enabling the cover closing process to be smoother, and saving labor for the user operation. Along with the closing process, the distance between the magnetic piece 3 and the matching piece 4 is more and more close, and the magnetic attraction between the magnetic piece 3 and the matching piece 4 is more and more large, so that the cover body 2 and the base 1 are buckled under the magnetic attraction of the magnetic piece 3 and the matching piece 4 when the cover body 2 moves to the end section formed by closing the cover. And when the cover body 2 is at the closing position, the magnetic piece 3 and the matching piece 4 can increase the buckling force between the cover body 2 and the base 1 under the action of magnetic attraction, increase the extrusion force between the first sealing piece 11 and the second sealing piece 21, the heating component 12 and the pressing piece 22, and improve the vacuumizing effect and the hot melting sealing effect.

In addition, the polarity of the magnetic member 3 and/or the mating member 4 is variable so that the two can be switched between a mutually attractive state and a mutually repulsive state. The cover body 2 is opened, the polarity of at least one of the magnetic piece 3 and the matching piece 4 is controlled to change, so that the polarities of the magnetic piece 3 and the matching piece 4 close to each other are the same, the interaction force between the magnetic piece 3 and the matching piece 4 is changed from attraction to mutual repulsion, the base 1 and the cover body 2 can be released from buckling under the repulsive interaction of the magnetic piece 3 and the matching piece 4, then the cover body 2 can be rotated to the cover opening position by applying small pulling force to the cover body 2 by a user, and the force applied to the cover body 2 by the user is reduced in the process, so that the effect of conveniently opening the cover is achieved.

And when uncapping the lid 2, under the assistance of the exclusive effort of magnetic part 3 and cooperation piece 4, the user uses less effort alright to open lid 2, consequently helps lid 2 steadily uncap, has avoided the user to exert excessive force to open the condition of closing machine and has opened the user's use experience.

It should be noted that "polarity-variable" is to be understood in a broad sense, that is, it may be a change between N and S poles, or a change between magnetic and non-magnetic. Specifically, one of the following embodiments may be adopted:

embodiment one: in this embodiment, referring to fig. 3 and 4, the magnetic member 3 is a permanent magnet, one side of the permanent magnet facing the mating member 4 has a first magnetic pole, the mating member 4 includes a core body and a coil wound around the periphery of the core body, the coil has a power-off state in which the permanent magnet and the core body attract each other to fasten the cover body 2 and the base 1, and a first power-on state; in the first electrified state, the polarity of one side of the core body facing the permanent magnet is the same as that of the first magnetic pole, and the core body and the permanent magnet repel each other so as to enable the base 1 and the cover 2 to be disengaged.

In this embodiment, the polarities of the two ends of the magnetic member 3 are not changeable, and the polarities of the two ends of the mating member 4 can be changed by changing the on-off state of the coil, for example, in the off state, no current is applied to the coil, the core is a common armature, in the first on state, current is applied to the coil, and the core is magnetized by the electro-magnetic field.

Specifically, the magnetic member 3 is a permanent magnet, one side of the permanent magnet facing the mating member 4 is provided with a first magnetic pole, the mating member 4 comprises a core body and a coil wound around the periphery of the core body, the coil is provided with a power-off state and a first power-on state, and in the power-off state, the permanent magnet and the core body are mutually attracted to enable the cover body 2 and the base 1 to be buckled; in the first electrified state, the polarity of the side of the core body facing the permanent magnet is the same as that of the first magnetic pole. In the power-off state, no current exists in the coil, the core body is nonpolar, the magnetic part 3 is a permanent magnet, and the attractive force of mutual attraction can be generated with the core body, so that the auxiliary cover closing effect is achieved. In the first electrified state, the coil is internally provided with current, the core body is magnetized under the action of the current, the polarity of one side of the core body facing the permanent magnet is the same as that of the first magnetic pole, and then the polarity of the core body facing the permanent magnet is mutually exclusive acting force is generated, so that the base 1 and the cover body 2 are released from buckling and spring open, the coil is electrified only when the cover is opened, the coil is not electrified in the cover closing process of the cover body 2, the control difficulty of the matching piece 4 is reduced, the working reliability is improved, and the cost is saved.

In a preferred embodiment, the sealing machine is further provided with a control unit, the control unit is electrically connected with the coil and is used for controlling the current flow direction in the coil so that the coil also has a second energizing state, in the second energizing state, the polarity of the side, facing the permanent magnet, of the core body is different from the polarity of the first magnetic pole, and the core body and the permanent magnet attract each other so that the cover body 2 and the base 1 are buckled.

Specifically, the coil can be electrified in the process of closing the cover body 2, the control unit enables the coil to be in a second electrified state, so that the polarity of the core body facing one side of the permanent magnet is different from that of the first magnetic pole, the magnetic attraction between the core body and the permanent magnet is greatly increased, the closing speed of the cover body 2 is further increased, and the magnetic attraction provides larger auxiliary force, so that the closing operation of the user is more labor-saving. In addition, the magnetic attraction between the permanent magnet and the core body can be increased, so that the pressure of the cover body 2 on the food bag is increased, and the sealing effect of the sealing machine is further improved.

For example, the first magnetic pole is an S pole, one side deviating from the core body is an N pole, the positions of the two poles are fixed and unchangeable, and in a power-off state, the core body is a common armature, and the first magnetic pole and the core body can be mutually attracted to generate attractive force to play a role of assisting in closing the cover. In the first electrified state, under the action of current in the coil, the core body is magnetized, and one side facing the first magnetic pole is an S pole, so that repulsive force is generated between the core body and the first magnetic pole, and the auxiliary uncovering function is realized. In the second electrifying state, the control unit changes the current flow direction in the coil, so that the current flow direction is opposite to the current flow direction in the coil in the first electrifying state, the core is magnetized, the magnetic pole position is opposite to the first electrifying state, namely, the side facing the first magnetic pole is N pole, so that magnetic attraction force is generated between the magnetic pole and the first magnetic pole, the magnetic attraction force between the magnetic pole and the first magnetic pole is increased, the auxiliary closing effect is improved, and the closing force after closing the cover is improved.

In a preferred embodiment, referring to fig. 3 and 4, the magnetic member 3 is disposed on the cover 2, and the mating member 4 is disposed on the base 1.

Because the matching piece 4 is an electromagnet, the electromagnet needs to be electrified, and the electronic element of the sealing machine is usually arranged on the base 1, the magnetic piece 3 is arranged on the cover body 2, and the matching piece 4 is arranged on the base 1, so that the electric elements needing to be electrically connected are intensively arranged on the base 1, the length of a wire is shortened, the wire arrangement is optimized, the wire does not need to extend into the cover body 2, and the assembly cost of the sealing machine is reduced.

It should be noted that, the magnetic element 3 may be disposed inside the cover 2, and the mating element 4 may be disposed inside the base 1, so as to implement a hidden design of the magnetic element 3 and the mating element 4, and avoid the magnetic force between the magnetic element 3 and the mating element 4 from being affected by pollution, or affect the gap between the two. Of course, the magnetic member 3 may be exposed on the surface of the cover 2, and the mating member 4 may be exposed on the surface of the base 1; alternatively, the magnetic member 3 may be exposed on the surface of the cover 2, and the mating member 4 may be disposed inside the base 1; alternatively, the magnetic member 3 is disposed inside the cover 1, and the mating member 4 is exposed on the surface of the base 1.

Embodiment two: in this embodiment, referring to fig. 4, 5 and 6, the magnetic member 3 and the mating member 4 are both electromagnets, and the sealing machine further includes a control unit electrically connected to the electromagnets, and the control unit is used for changing the polarity of the magnetic member 3 and/or the mating member 4.

Specifically, when the cover 2 is disengaged, the control unit energizes the magnetic member 3 and the mating member 4, and makes the ends of the magnetic member 3 and the mating member 4, which are close to each other, have the same polarity, so that a repulsive force is generated between the magnetic member 3 and the mating member 4, and the cover 2 and the base 1 are disengaged under the repulsive force between the magnetic member 3 and the mating member 4.

In this embodiment, the manner of generating the magnetic attraction force between the magnetic member 3 and the mating member 4 when the cover 2 is fastened is not limited, and any of the following examples may be adopted:

in embodiment 1, when the cover 2 is fastened, the control unit makes the magnetic member 3 or the mating member 4 energized, so that one of the magnetic member 3 and the mating member 4 generates magnetism, and then one of the magnetic member 3 and the mating member 4 generates magnetic force to the other of the magnetic member 3 and the mating member 4, so that the cover 2 and the base 1 are fastened under the action of magnetic attraction between the magnetic member 3 and the mating member 4.

In embodiment 2, when the cover 2 is fastened, the control unit makes the magnetic member 3 and the mating member 4 electrified, and makes the polarities of the ends of the magnetic member 3 and the end of the mating member 4 close to each other different, so that the magnetic member 3 and the mating member 4 attract each other under the action of magnetic attraction, so that the cover 2 is fastened under the action of the magnetic attraction between the magnetic member 3 and the mating member 4, and the fastening force is larger, so that the pressure applied to the food bag is increased, and the sealing effect of the sealing machine is further increased.

The control unit may be one, and may control the magnetic member 3 and the mating member 4 at the same time, or may be two, so as to separately control the magnetic member and the mating member, which is not limited herein.

In a preferred embodiment, referring to fig. 5, 6 and 7, the magnetic member 3 is disposed on the cover 2, the mating member 4 is disposed on the base 1, the base 1 is further provided with a heat generating component 12 protruding upward, the cover 2 is provided with a pressing member 22 protruding downward corresponding to the heat generating component 12, and a lower edge of the pressing member 22 is lower than a lower edge of the magnetic member 3; and/or the upper edge of the heating element 12 is higher than the upper edge of the mating member 4.

In the process of closing the cover body 2, the pressing piece 22 and the heating component 12 are contacted with the matching piece 4 before the magnetic piece 3, and under the action of the magnetic attraction of the magnetic piece 3 and the matching piece 4, the pressing piece and the matching piece are contacted more and more tightly, and meanwhile, the pressure applied to the food bag is more and more increased, so that the hot melting effect of the heating component 12 on the food bag is increased, and the sealing effect of the sealing machine on the food bag is improved.

Preferably, the pressing piece 22 is made of an elastic material, for example, a silica gel material, so that when the cover body 2 is covered, the pressing piece 22 is contacted with the heating component 12 first, and along with the smaller and smaller distance between the magnetic piece 3 and the matching piece 4, the pressure applied by the cover body 2 to the pressing piece 22 is larger and larger, so that the pressing piece 22 is elastically deformed, and then the contact area between the pressing piece 22 and the food bag is increased, so that the contact area between the food bag and the heating component 12 is increased, the hot melting area of the food bag is increased, and the sealing effect of the sealing machine is improved.

Further, the heating component 12 is located between the matching piece 4 and the first sealing piece 11, and the pressing piece 22 is located between the magnetic piece 3 and the second sealing piece 21, so that the heating component 12 seals the mouth of the food bag, and the sealing effect of the sealing machine is improved.

Specifically, lid 2 has the link and opens and shuts the end, and the link rotates with base 1 to be connected, and open and shut the end is located to magnetic part 3, and cooperation piece 4 corresponds to set up in the one end of base 1 to increase lid 2 and base 1 lock effect, reduce the clearance of closing lid 2 between the open and shut end and the base 1 after closing the lid, increase the buckling force, improve the sealing effect of capper to the food bag.

In a preferred embodiment, the magnetic element 3 and/or the mating element 4 are further provided with an elastic portion to enable the magnetic element 3 and/or the mating element 4 to float up and down.

The elastic part enables the magnetic part 3 and/or the matching part 4 to float up and down so as to reduce the distance between the magnetic part 3 and the matching part 4 when the cover body 2 is at the cover closing position, and even enable the magnetic part 3 and the matching part 4 to contact with each other when the cover body 2 is at the cover closing position, so that the cover closing of the cover body 2 is tighter, the cover closing gap is reduced, the pressure applied to the food bag by the cover body 2 is increased, and the sealing effect of the sealing machine is further increased. In addition, when uncapping lid 2, magnetic part 3 and cooperation spare 4 are removed towards the direction that keeps away from each other under the effect of repulsion, form the extrusion to the elastic part, increase the clearance between magnetic part 3 and the cooperation spare 4 to be convenient for the user stretch into lid 2 and base 1 between to the lid 2 application of force, and then reach the effect of being convenient for uncap lid 2.

The utility model is not limited to the structure of the elastic part, preferably, the elastic part is a spring, and in other embodiments, the elastic member may be a silicone member or an elastic sheet.

In a preferred embodiment, the sealing machine is further provided with a damping member, and the damping member is used for increasing resistance when the cover body 2 rotates, so as to avoid the situation that the cover body 2 is fast buckled under the action of magnetic attraction to clamp the hands of a user and generate larger cover closing sound in the cover closing process, and the cover body 2 is fast flicked under the action of repulsive force when the cover is opened, so that the situation that the sealing machine is knocked over is avoided, and the use experience of the user is improved.

The present utility model does not specifically limit the setting position of the damping member, and any one of the following embodiments may be adopted:

in embodiment 1, the damping member is protruded on the base 1 or the cover 2.

Specifically, the damping piece is convexly arranged on the opposite end surfaces of the base 1 or the cover body 2, and has certain elastic deformation capability, so that when the cover body 2 is covered, the damping piece is firstly contacted with the cover body 2 or the base 1 and continuously rotates towards the cover closing position along with the cover body 2, and the damping piece deforms, so that the speed of the cover body 2 rotating towards the cover closing position is reduced, and the use experience of a user is further improved.

In embodiment 2, a damping member is disposed at the rotational connection portion between the cover 2 and the base 1, for example, the damping member has a damper, torsion spring, or other structure.

In a preferred embodiment, referring to fig. 5, the sealing machine further includes an air extracting member, and the base 1 or the cover 2 is provided with an air extracting opening communicating with the sealing cavity 111, and the air extracting member communicates with the air extracting opening.

The air extraction part is communicated with the air extraction opening, and the air extraction opening is communicated with the sealing cavity 111, so that when the food bag is sealed, the air in the sealing cavity 111 can be firstly extracted by the air extraction part, so that the air in the food bag enters the sealing cavity 111 and is extracted by the air extraction part, the inside of the food bag is in a vacuum state after the food bag is sealed, the flexibility of the sealing machine is improved, and meanwhile, the storage time of food in the food bag is prolonged.

The utility model does not limit the setting positions of the air extracting piece and the air extracting opening, preferably, the air extracting piece is arranged on the base 1, and the air extracting opening is arranged on the base 1, because the electronic element of the sealing machine is usually arranged on the base 1, the air extracting piece is arranged on the base 1, so that the distance between the air extracting piece and other electronic elements is relatively short, the length of a circuit is shortened, the electric connection for the air extracting piece is more convenient, and the assembly efficiency of the sealing machine is improved. Locate base 1 with the extraction opening, avoided the condition that needs to use the pipeline to communicate extraction opening and extraction piece both, reduced the part that needs the equipment on the one hand, improved the assembly efficiency of capper, on the other hand reduced manufacturing cost.

Of course, in other embodiments, the air extracting member and the air extracting port may be provided to the cover 2. In addition, the air extraction piece can be independently arranged, so that the air extraction piece is communicated with the air extraction opening through a pipeline.

In a preferred embodiment, referring to fig. 5, 6 and 7, at least one of the magnetic member 3 and the mating member 4 is an electromagnet; in the closing position, the electromagnet is in a second energizing state, so that the polarities of the magnetic piece 3 and the matching piece 4 are different, and the magnetic piece 3 and the matching piece 4 enable the cover body 2 and the base 1 to press the first sealing piece 11 and the second sealing piece 21 under the action of magnetic attraction.

Specifically, in the closing position, the electromagnet is in a second energizing state, so that the polarities of the magnetic piece 3 and the matching piece 4 are different, and then magnetic attraction is generated between the magnetic piece 3 and the matching piece 4, so that the cover body 2 and the base 1 squeeze the first sealing piece 11 and the second sealing piece 21 under the action of magnetic attraction, the first sealing piece 11 and the second sealing piece 21 are abutted to be more compact, the air leakage between the first sealing piece 11 and the second sealing piece 21 is avoided, the sealing performance of the sealing cavity 111 is ensured, and the vacuumizing effect of the sealing machine is improved.

In addition, when the sealing cavity 111 is vacuumized, the air pressure in the sealing cavity 111 is reduced, so that the air pressure of the outside is larger than that of the sealing cavity 111, and then the first sealing element 11 and the second sealing element 21 deform towards the inside of the sealing cavity 111 under the action of pressure difference, so that the first sealing element and the second sealing element are in contact more tightly, and the sealing effect is improved. When the cover body 2 is opened, the first sealing element 11 and the second sealing element 21 gradually recover to deform and apply upward thrust to the cover body 2, so that the effect of conveniently opening the cover body 2 is achieved.

Preferably, referring to fig. 6 and 7, the opposite end surfaces of the first seal member 11 and the second seal member 21 each have an abutment plane 211, and when the cover 2 is in the closed position, the abutment plane 211 on the first seal member 11 and the abutment plane 211 on the second seal member 21 abut to increase the abutment area of the first seal member 11 and the second seal member 21, so as to further increase the tightness of the seal cavity 111, and further increase the vacuumizing effect of the sealing machine.

It should be noted that, the user can freely control the start and stop of the air extracting member according to different sealing requirements, so that the sealer has a first sealing mode in which the air extracting member does not work and a second sealing mode in which the air extracting member works, and in the first sealing mode, only the food bag is sealed, and air in the food bag is not extracted, for example, the sealing and the preservation of dry food are performed; in the second sealing mode, air in the food bag is pumped out, and then the food bag is sealed, for example, fresh fruits and vegetables are sealed and stored.

The utility model can be realized by adopting or referring to the prior art at the places which are not described in the utility model.

In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments.

The foregoing is merely exemplary of the present utility model and is not intended to limit the present utility model. Various modifications and variations of the present utility model will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are to be included in the scope of the claims of the present utility model.

Claims (10)

1. The sealing machine comprises a base and a cover body which is rotationally connected with the base to form a cover opening position and a cover closing position, wherein the base is provided with a first sealing element, the cover body is provided with a second sealing element, when the cover body is in the cover closing position, the first sealing element and the second sealing element are matched to form a sealing cavity, and the sealing machine is characterized in that,

the base and the cover body are provided with magnetic pieces, the other one of the base and the cover body is provided with a matching piece matched with the magnetic pieces, the polarity of at least one of the magnetic pieces and the matching piece is changeable, the magnetic pieces and the matching piece can enable the base and the cover body to be buckled under the action of magnetic attraction, and the magnetic pieces and the matching piece can enable the base and the cover body to be buckled under the action of repulsion.

2. The sealing machine according to claim 1, wherein,

the magnetic piece is a permanent magnet, a first magnetic pole is arranged on one side of the permanent magnet, facing the matching piece, the matching piece comprises a core body and a coil wound on the periphery of the core body, the coil is provided with a power-off state and a first power-on state, and in the power-off state, the permanent magnet and the core body are mutually attracted to enable the cover body and the base to be buckled;

in the first electrified state, the polarity of one side of the core body, facing the permanent magnet, is the same as the polarity of the first magnetic pole, and the core body and the permanent magnet repel each other so as to enable the base and the cover body to be disengaged.

3. The sealing machine according to claim 2, wherein,

the sealing machine is further provided with a control unit, the control unit is electrically connected with the coil and is used for controlling the current flow direction in the coil so that the coil is further provided with a second electrifying state, the polarity of the core body towards one side of the permanent magnet is different from that of the first magnetic pole in the second electrifying state, and the core body and the permanent magnet are mutually attracted to enable the cover body to be buckled with the base.

4. The sealing machine according to claim 2, wherein,

the magnetic piece is arranged on the cover body, and the matching piece is arranged on the base.

5. The sealing machine according to claim 1, wherein,

the magnetic piece and the matching piece are electromagnets, the sealing machine further comprises a control unit which is connected with the electromagnet in a ferroelectric mode, and the control unit is used for changing the polarity of the magnetic piece and/or the matching piece.

6. The sealing machine according to claim 1, wherein,

the magnetic part is arranged on the cover body, the matching part is arranged on the base, the base is also provided with a heating component protruding upwards, the cover body is provided with a pressing part protruding downwards corresponding to the heating component, and the lower edge of the pressing part is lower than the lower edge of the magnetic part; and/or, the upper edge of the heating component is higher than the upper edge of the matching piece.

7. The sealing machine according to claim 1, wherein,

the magnetic piece and/or the matching piece are/is further provided with an elastic part so that the magnetic piece and/or the matching piece can float up and down.

8. The sealing machine according to claim 1, wherein,

the sealing machine is also provided with a damping piece, and the damping piece is convexly arranged on the base or the cover body; or, the damping piece is arranged at the rotation connection part of the cover body and the base.

9. The sealing machine according to any one of claims 1 to 8, wherein,

the sealing machine further comprises an air extraction piece, wherein the base or the cover body is provided with an air extraction opening communicated with the sealing cavity, and the air extraction piece is communicated with the air extraction opening.

10. The sealing machine according to claim 9, wherein,

at least one of the magnetic piece and the matching piece is an electromagnet;

in the closing position, the electromagnet is in a second electrifying state, so that polarities of the magnetic piece and the matching piece are different, and the magnetic piece and the matching piece enable the cover body and the base to extrude the first sealing piece and the second sealing piece under the action of magnetic attraction.