CN210455441U

CN210455441U - Sealing machine with overheat protection device

Info

Publication number: CN210455441U
Application number: CN201921450092.8U
Authority: CN
Inventors: 付世伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-02
Filing date: 2019-09-02
Publication date: 2020-05-05
Anticipated expiration: 2029-09-02

Abstract

The utility model provides a capper with overheat protection device relates to capper technical field, has solved the capper that exists among the prior art long time work and has caused the heater strip easily around the casing melt the technical problem who damages. The sealing machine with the overheating protection device comprises a sealing machine body and the overheating protection device; the sealing machine body comprises a machine shell, a heating device, a circuit board, a transformer and a power line, wherein the power line, the circuit board and the transformer are sequentially and electrically connected, the heating device is electrically connected with the transformer, and the heating device is arranged on the upper surface of the machine shell; the overheat protection device comprises a first temperature switch and a second temperature switch, the first temperature switch is arranged on the inner surface of the shell, the second temperature switch is arranged on the transformer, and the overheat protection device can cut off the heating circuit when the set temperature is reached. The utility model is used for a be difficult for by the burning out, the longer capper of life.

Description

Sealing machine with overheat protection device

Technical Field

The utility model belongs to the technical field of capper technique and specifically relates to a capper with overheat protection device is related to.

Background

A sealing machine is a machine for sealing containers filled with packaged articles. With the improvement of living standards, the requirement of freshness of food materials and the like is also improved, and a small sealing machine is provided in many families or supermarkets, and products are placed into a packaging bag which can be made of plastic materials, aluminum foil materials or kraft paper materials and is sealed and stored at the opening of the packaging bag.

The sealing machine in the market at present comprises a shell, a transformer, a heating wire and a handle, wherein the heating wire is arranged on the upper surface of the shell, the transformer is arranged in the shell, two ends of the heating wire are electrically connected with the transformer, and the heating function of the heating wire is realized by voltage reduction of the transformer; when the heating bag mouth pressing device is used, the mouth of the packaging bag is placed on the heating wire, the handle presses downwards and the shell around the heating wire is combined to press the mouth of the packaging bag, the mouth of the packaging bag is softened by hot melting under the heating action of the heating wire, and the mouth of the packaging bag is pressed under the action of the pressure of the handle.

The applicant finds that in the prior art, the heating wire in the sealing machine is arranged on the shell, a user needs to pay attention to the heating time all the time, and if the heating wire works continuously for a long time, the shell around the heating wire is easy to melt and deform, so that the packaging bag for subsequent sealing is uneven, and the sealing effect is influenced; if the situation is serious, the machine can be damaged, and the machine can be scrapped.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a capper with overheat protection device to solve the capper that exists among the prior art and long time work and cause the heater strip around the casing easily to melt the technical problem who damages. The following explains various technical effects that can be produced by the preferred technical scheme in the technical schemes of the utility model.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a sealing machine with an overheat protection device, which comprises a sealing machine body and an overheat protection device; wherein the content of the first and second substances,

the sealing machine body comprises a shell, a heating device, a circuit board, a transformer and a power line, wherein the power line is electrically connected with the circuit board, the circuit board is electrically connected with the transformer, and the heating device is electrically connected with the transformer; the heating device is arranged on the upper surface of the shell, and the circuit board and the transformer are arranged inside the shell;

the overheat protection device comprises a first temperature switch and a second temperature switch, the first temperature switch is arranged on the inner surface of the shell and is positioned in the area between the heating device and the circuit board, and the first temperature switch is electrically connected with the circuit board and the power line and can break a circuit between the circuit board and the power line when the first temperature switch is heated to reach the action temperature; the second temperature switch is arranged on the transformer, and the second temperature switch is electrically connected with the circuit board and the power line and can break off a circuit between the circuit board and the power line when the second temperature switch is heated to reach the action temperature.

In a preferred or alternative embodiment, the first temperature switch is correspondingly arranged below the heating device and is in contact with the inner surface of the casing.

In a preferred or alternative embodiment, an installation groove is arranged on the inner surface of the casing, a threaded hole is arranged at the edge of the installation groove, and the first temperature switch is installed in the installation groove; the bolt sleeved with the gasket is connected with the threaded hole, and the gasket and the edge of the mounting groove are extruded to fix the first temperature switch in the mounting groove.

In a preferred or alternative embodiment, the pad has a greater plasticity than the first temperature switch housing.

In a preferred or alternative embodiment, the transformer comprises a coil, the second temperature switch being disposed within the coil.

In preferred or optional embodiment, heating device includes the heater, prevents scalding cloth and thermal-insulated silica gel, the heater both ends all with the transformer electricity is connected, thermal-insulated silica gel with casing upper surface is connected, prevent scalding cloth has been placed on the thermal-insulated silica gel, the heater set up in prevent scalding cloth upper surface, the heater both ends respectively with the casing is connected.

In a preferred or optional embodiment, the casing includes a hanging part and a fastening part, the hanging part and the fastening part are both electrically connected to the transformer, and both the hanging part and the fastening part are made of conductive materials; the hanging part is connected with the inner wall surface of the shell, and partial sections of the hanging part extend out of the upper surface of the shell; the fastening part is provided with internal threads, and the upper surface of the fastening part is exposed out of the upper surface of the shell;

and connecting rings are arranged at two ends of the heating wire, the connecting ring at one end is hung on the hanging part, and the connecting ring at the other end is connected with the fastening part through a bolt.

In a preferred or alternative embodiment, the connection rings at both ends of the heating wire are respectively in contact with the fastening part and the hanging part for conducting electricity.

In a preferred or optional embodiment, the sealing machine body further comprises a pressing plate, the heating device further comprises a heat insulation cloth, the heat insulation cloth is placed on the upper surface of the heating wire, the pressing plate is connected with the upper surface of the casing to press and fix the heat insulation cloth, a heating groove is formed in the pressing plate, and at least part of the section of the heating device can protrude out of the upper surface of the pressing plate through the heating groove.

In preferred or optional embodiment, the capper body still includes the handle, the handle with the casing rotates to be connected, the handle lower surface is provided with handle silica gel, handle silica gel with heating device position corresponds when the handle is pushed down handle silica gel with the heating device contact can will press pressure on the handle transmit to heating device.

Based on the technical scheme, the embodiment of the utility model provides a can produce following technological effect at least:

the utility model provides a sealing machine with an overheat protection device, which comprises a sealing machine body and the overheat protection device; the overheat protection device comprises the first temperature switch and the second temperature switch, the first temperature switch is arranged on the inner surface of the shell and is positioned between the heating device and the circuit board, when the temperature of the first temperature switch is higher than the action temperature, the circuit is disconnected, the shell is protected from being heated and damaged by the heating device for a long time, meanwhile, the temperature around the circuit board is kept in a limited range, and the circuit board is protected from being burnt out; the second temperature switch is arranged on the transformer, so that the transformer can be prevented from being burnt out due to excessive heating caused by long-time heating, and the service life is prolonged.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic cross-sectional view of a sealing machine provided with an overheat protection device according to an embodiment of the present invention (a part of the wire connection is omitted);

fig. 2 is a schematic connection diagram of a first temperature switch provided in an embodiment of the present invention;

FIG. 3 is a schematic bottom view of the first temperature switch connection of FIG. 2;

fig. 4 is a schematic view of a heating device provided in an embodiment of the present invention;

fig. 5 is a schematic view of a heating wire provided in an embodiment of the present invention.

In the figure, 1, a sealing machine body; 11. a housing; 111. mounting grooves; 112. a hanging part; 113. a fastening section; 12. a heating device; 121. a heater; 122. anti-scald cloth; 123. heat-insulating silica gel; 124. a heat insulating cloth; 125. a connecting ring; 13. a circuit board; 14. a transformer; 141. a coil; 15. a power line; 16. a gasket; 17. a bolt; 18. pressing a plate; 181. a heating tank; 19. a handle; 191. handle silica gel; 2. an overheat protection device; 21. a first temperature switch; 22. a second temperature switch.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The utility model provides a sealing machine which is not easy to be burnt out and has longer service life and is provided with an overheating protection device.

The technical solution provided by the present invention will be explained in more detail with reference to fig. 1 to 5.

As shown in fig. 1 to 5, the sealing machine provided with the overheat protection device according to the embodiment of the present invention includes a sealing machine body 1 and an overheat protection device 2; wherein the content of the first and second substances,

the sealing machine body 1 comprises a machine shell 11, a heating device 12, a circuit board 13, a transformer 14 and a power line 15, wherein the power line 15 is electrically connected with the circuit board 13, the circuit board 13 is electrically connected with the transformer 14, and the heating device 12 is electrically connected with the transformer 14; the heating device 12 is arranged on the upper surface of the casing 11, and the circuit board 13 and the transformer 14 are arranged inside the casing 11;

the overheating protection device 2 comprises a first temperature switch 21 and a second temperature switch 22, the first temperature switch 21 is arranged on the inner surface of the casing 11 and is positioned in the area between the heating device 12 and the circuit board 13, the first temperature switch 21 is electrically connected with the circuit board 13 and the power line 15, and when the first temperature switch 21 is heated to reach the action temperature, the first temperature switch 21 can break the circuit between the circuit board 13 and the power line 15; the second temperature switch 22 is disposed on the transformer 14, and the second temperature switch 22 is electrically connected to the circuit board 13 and the power line 15, so that the second temperature switch 22 can break the circuit between the circuit board 13 and the power line 15 when the second temperature switch 22 is heated to the operating temperature.

Specifically, the power line 15 may be directly connected to the commercial power or input through a USB power supply, and the first temperature switch 21 and the second temperature switch 22 may be connected in series to each other and then connected between the circuit board 13 and the power line 15; the circuit board 13 is connected with the casing 11 through a connecting column on the casing 11; the first temperature switch 21 and the second temperature switch 22 selected by the utility model are temperature switches available on the market, and are temperature switches using bimetallic strips as temperature sensing elements, when the electric appliance works normally, the bimetallic strips are in a free state, the contacts are in a closed state, when the temperature rises to an action temperature value, the bimetallic elements are heated to generate internal stress to act rapidly, the contacts are opened, and the circuit is cut off, so that the heat protection effect is achieved; when the temperature drops to normal temperature, the contacts are automatically closed, and the normal working state is recovered, and the specific structures of the first temperature switch 21 and the second temperature switch 22 in the patent are shown in the patent of Chinese utility model with the authorization publication number of CN 205828273U.

The utility model provides a sealing machine with an overheat protection device, which comprises a sealing machine body 1 and an overheat protection device 2; the overheating protection device 2 comprises the first temperature switch 21 and the second temperature switch 22, the first temperature switch 21 is arranged on the inner surface of the casing 11 and is positioned between the heating device 12 and the circuit board 13, when the temperature of the first temperature switch 21 is higher than the action temperature, the circuit is disconnected, the casing 11 is protected from being heated and damaged by the heating device 12 for a long time, meanwhile, the temperature around the circuit board 13 is kept in a limited range, and the circuit board 13 is protected from being burnt out; the second temperature switch 22 is arranged on the transformer 14, so that the transformer 14 can be prevented from being burnt out due to excessive heating caused by long-time heating, and the service life is prolonged.

In a preferred or alternative embodiment, the first temperature switch 21 is correspondingly disposed below the heating device 12 and in contact with the inner surface of the cabinet 11.

Specifically, the heating device 12 is disposed on the upper surface of the housing 11, and the first temperature switch 21 is disposed on the corresponding inner surface of the housing 11, which is equivalent to the space between the first temperature switch 21 and the heating device 12 is only the thickness of the top of the housing; the first temperature switch 21 is in contact with the inner surface of the casing 11, so that the measured temperature is closer to the temperature of the casing 11, the circuit can be switched on and off in time when the set temperature is reached, and the casing 11 is protected from being burnt out.

As a preferred or alternative embodiment, the inner surface of the housing 11 is provided with a mounting groove 111, the edge of the mounting groove 111 is provided with a threaded hole, and the first temperature switch 21 is mounted in the mounting groove 111; the bolt 17 sleeved with the gasket 16 is connected with the threaded hole, and the gasket 16 is extruded with the edge of the mounting groove 111 to fix the first temperature switch 21 in the mounting groove 111.

In a preferred or alternative embodiment, the plasticity of the washer 16 is greater than the plasticity of the housing of the first temperature switch 21. When the bolt 17 is tightened, the gasket 16 will contact with the outer surface of the first temperature switch 21 and generate pressure, and the plasticity of the gasket 16 is limited to be larger than that of the shell of the first temperature switch 21, so that the shell of the first temperature switch 21 can be prevented from being extruded and deformed to a certain extent when extrusion occurs.

In a preferred or alternative embodiment, the transformer 14 includes a coil 141, and the second temperature switch 22 is disposed within the coil 141.

Specifically, the second temperature switch 22 is disposed between the multiple layers of coils 141, so that the temperature of the transformer 14 including the coils 141 can be monitored more directly, the circuit can be switched on and off in time, and the transformer 14 is protected from being burned out.

As a preferred or optional embodiment, the heating device 12 includes a heating wire 121, an anti-scald cloth 122 and a heat-insulating silica gel 123, both ends of the heating wire 121 are electrically connected to the transformer 14, the heat-insulating silica gel 123 is connected to the upper surface of the housing 11, the anti-scald cloth 122 is placed on the heat-insulating silica gel 123, the heating wire 121 is disposed on the upper surface of the anti-scald cloth 122, and both ends of the heating wire 121 are respectively connected to the housing 11.

Specifically, the heat-generating part of the heating wire 121 is isolated from the upper surface of the cabinet 11 by the heat-insulating silica gel 123 and the anti-scald cloth 122, so that the cabinet 11 is further prevented from being burned out.

As a preferred or alternative embodiment, the casing 11 includes a hanging portion 112 and a fastening portion 113, the hanging portion 112 and the fastening portion 113 are respectively electrically connected to the transformer 14, and the hanging portion 112 and the fastening portion 113 are both made of conductive materials; the hanging part 112 is connected with the inner wall surface of the casing 11, and partial sections of the hanging part 112 extend out of the upper surface of the casing 11; the fastening part 113 is provided with internal threads and the upper surface thereof is exposed out of the upper surface of the casing 11;

the two ends of the heating wire 121 are provided with connecting rings 125, wherein the connecting ring 125 at one end is hung on the hanging part 112, and the connecting ring 125 at the other end is connected with the fastening part 113 through a bolt.

In a preferred or alternative embodiment, the connection rings 125 at both ends of the heating wire 121 are respectively in contact with the fastening portion 113 and the hanging portion 112 for conducting electricity.

Specifically, the hanging portion 112 is a metal sheet, one end of which is in contact connection with the wire of the transformer 14 to realize electrical conduction, and the other end of which extends out of the upper surface of the housing 11, and the connection ring 125 is also made of metal material, and can conduct electricity through contact when hung on the hanging portion 112; the fastening portion 113 may be in the shape of a nut, the lower surface of the fastening portion is in contact with the wire of the transformer 14 to achieve electrical conduction, the upper surface of the fastening portion is flush with the upper surface of the housing 11, the connection ring 125 at the other end of the heating wire 121 is placed on the fastening portion 113, a bolt passes through the connection ring 125 and the fastening portion 113 to fix the connection ring 125, the fastening portion 113 is made of metal, and the connection ring 125 is in contact with the fastening portion 113 to achieve electrical conduction.

In a preferred or alternative embodiment, the sealing machine body 1 further includes a pressing plate 18, the heating device 12 further includes a heat insulating cloth 124, the heat insulating cloth 124 is disposed on the upper surface of the heating wire 121, the pressing plate 18 is connected with the upper surface of the housing 11 to press and fix the heat insulating cloth 124, a heating groove 181 is disposed on the pressing plate 18, and at least a portion of the heating device 12 can protrude out of the upper surface of the pressing plate 18 through the heating groove 181.

As a preferable or alternative embodiment, the sealing machine body 1 further comprises a handle 19, the handle 19 is rotatably connected with the casing 11, a handle silicone 191 is arranged on the lower surface of the handle 19, the handle silicone 191 is corresponding to the position of the heating device 12, and when the handle 19 is pressed down, the handle silicone 191 is in contact with the heating device 12 and can transmit the pressure pressed on the handle 19 to the heating device 12.

Specifically, when the packaging bag sealing device is used, a packaging bag to be sealed is placed on the heating device 12, an operator manually presses the handle 19, the lower surface of the handle silica gel 191 is in contact with the upper surface of the heating device 12, the handle 19 is continuously pressed by hands, extrusion force is generated between the handle silica gel 191 and the heating device 12, the packaging bag is heated by the heating device 12 to be melted and softened at the mouth of the packaging bag, and the packaging bag is pressed and sealed under the action of the pressure.

Any technical solution disclosed in the present invention is, unless otherwise stated, disclosed a numerical range if it is disclosed, and the disclosed numerical range is a preferred numerical range, and any person skilled in the art should understand that: the preferred ranges are merely those values which are obvious or representative of the technical effect which can be achieved. Because numerical value is more, can't be exhaustive, so the utility model discloses just disclose some numerical values with the illustration the technical scheme of the utility model to, the numerical value that the aforesaid was enumerated should not constitute right the utility model discloses create the restriction of protection scope.

If the terms "first," "second," etc. are used herein to define parts, those skilled in the art will recognize that: the terms "first" and "second" are used merely to distinguish one element from another in a descriptive sense and are not intended to have a special meaning unless otherwise stated.

Also, above-mentioned the utility model discloses if disclose or related to mutually fixed connection's spare part or structure, then, except that other the note, fixed connection can understand: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connection (such as riveting and welding), of course, the mutual fixed connection can also be an integral structure (for example, the mutual fixed connection is manufactured by casting and integral forming instead (except that the integral forming process can not be adopted obviously).

In addition, the terms used in any aspect of the present disclosure as described above to indicate positional relationships or shapes include similar, analogous, or approximate states or shapes unless otherwise stated. The utility model provides an arbitrary part both can be assembled by a plurality of solitary component parts and form, also can be the solitary part that the integrated into one piece technology was made.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.

Claims

1. A sealing machine with an overheating protection device is characterized by comprising a sealing machine body and the overheating protection device; wherein the content of the first and second substances,

2. The sealing machine with the overheat protection device according to claim 1, wherein the first temperature switch is correspondingly disposed below the heating device and in contact with the inner surface of the housing.

3. The sealing machine provided with the overheat protection device according to claim 2, wherein an installation groove is provided on the inner surface of the casing, a threaded hole is provided on the edge of the installation groove, and the first temperature switch is installed in the installation groove; the bolt sleeved with the gasket is connected with the threaded hole, and the gasket and the edge of the mounting groove are extruded to fix the first temperature switch in the mounting groove.

4. The sealing machine provided with the overheat protection means according to claim 3, wherein the plasticity of the gasket is larger than that of the first temperature switch case.

5. The sealing machine provided with an overheat protection device according to claim 1, wherein said transformer includes a coil, and said second temperature switch is provided in said coil.

6. The sealing machine with the overheat protection device according to claim 1, wherein the heating device comprises a heating wire, an anti-scald cloth and a heat insulation silica gel, both ends of the heating wire are electrically connected to the transformer, the heat insulation silica gel is connected to the upper surface of the casing, the anti-scald cloth is placed on the heat insulation silica gel, the heating wire is disposed on the upper surface of the anti-scald cloth, and both ends of the heating wire are respectively connected to the casing.

7. The sealing machine with the overheat protection device according to claim 6, wherein the casing comprises a hanging part and a fastening part, the hanging part and the fastening part are respectively electrically connected with the transformer, and the hanging part and the fastening part are both made of conductive materials; the hanging part is connected with the inner wall surface of the shell, and partial sections of the hanging part extend out of the upper surface of the shell; the fastening part is provided with internal threads, and the upper surface of the fastening part is exposed out of the upper surface of the shell;

8. The sealing machine provided with the overheat protection device according to claim 7, wherein the connection rings at both ends of the heating wire are respectively in contact with the fastening portion and the hanging portion for conduction.

9. The sealing machine with the overheat protection device according to claim 6, wherein the sealing machine body further comprises a pressing plate, the heating device further comprises a heat insulating cloth, the heat insulating cloth is placed on the upper surface of the heating wire, the pressing plate is connected with the upper surface of the casing to press and fix the heat insulating cloth, a heating groove is formed in the pressing plate, and at least a part of the section of the heating device can protrude out of the upper surface of the pressing plate through the heating groove.

10. The sealing machine with the overheat protection device as claimed in claim 9, wherein the sealing machine body further comprises a handle, the handle is rotatably connected with the casing, a handle silicone is disposed on a lower surface of the handle, the handle silicone is in contact with the heating device when the handle is pressed down corresponding to the heating device, and the handle silicone can transmit pressure pressed on the handle to the heating device.