JP6284652B2 - Structure of heater for packaging machine - Google Patents

Description

  The present invention relates to a structure for a heater for a packaging machine, and more particularly to a structure for a heater for a packaging machine that can be packaged by thermally welding a wrapping paper layered on top of a food container.

  Generally, in a restaurant or department store, food is put into a disposable food container in order to wrap the food for the consumer, and then the food container is put into a packaging machine and packaged for delivery to the consumer.

  The following patent document 1 discloses a technique for a container sealing device (hereinafter referred to as a prior art). This prior art shows a technique in which a wrapping paper is laminated on the upper part of a food container, and then the wrapping paper is thermally welded to the edge of the food container using a heat wire formed in a ring shape.

  However, conventionally, it is difficult to fix such a ring-shaped heat wire and connect the heat wire to the electric wire, and the structure is complicated, and overheating occurs while the connecting portion of the heat wire and the electric wire is broken. There was a problem.

Korean Patent Publication No. 10-2009-0112437

  The present invention is for solving the above-mentioned problems, and the object of the present invention is to improve the workability by easily connecting the hot wire and the electric wire, and overheating occurs at the connecting portion of the hot wire and the electric wire. The present invention provides a heater structure for a packaging machine capable of minimizing the operation.

In order to achieve the above-mentioned object, the structure of the heater for a packaging machine of the present invention generates heat when the power is applied from the power supply unit, which is attached to the packaging machine, and thermally welds the wrapping paper to the food container. In the structure of the heater for the packaging machine that seals the food container, the insulating member disposed on the upper part of the food container, the lower surface of the insulating member, connected to the electric wire connected to the power supply unit, A belt-like hot wire that generates heat when the power is applied through the electric wire and heat-welds the wrapping paper to the edge of the food container; and a connecting member that electrically connects the hot wire and the electric wire. The connecting member includes a housing and a mounting portion formed on the housing, and the heat wire and the electric wire are electrically connected to each other by the mounting portion.
Any one or more of the heat wire and the electric wire are detachably coupled to the mounting portion.

The mounting portion includes a mounting hole that is formed through the housing and into which the heat wire and the electric wire are inserted, and a fastening member that fixes the heat wire and the electric wire inserted into the mounting hole to the housing.
The fastening member includes a screw attached to the housing, and the fastening member electrically connects the heat wire inserted into the attachment hole and the electric wire.

  The hot wire includes a first heat wire coupled to the lower surface of the insulating member and a second heat wire coupled to the lower surface of the insulating member and disposed on the same plane as the first heat wire. The first insertion portion is bent and extended at both ends of the first heat wire, the second insertion portion is bent and extended at both ends of the second heat wire, and the connecting member is The first insertion portion and the second insertion portion, which are formed of the same number as the number of heat rays and face each other, are inserted into the same mounting hole and connected to the electric wire.

The heat ray is formed in a single band shape, and a first insertion portion and a second insertion portion are bent and extended at both ends, and the first insertion portion and the second insertion portion facing each other are the same. It is inserted into the mounting hole and connected to the electric wire.
The first insertion portion and the second insertion portion facing each other are in contact with each other at a lower portion of the insulating member.

  Alternatively, the first insertion portion and the second insertion portion facing each other are separated from each other at a lower portion of the insulating member, and the electric wire is electrically connected to the first insertion portion and the second insertion portion. .

  A through hole through which the first insertion portion and the second insertion portion pass is formed in the insulating member, and the first insertion portion and the second insertion portion that pass through the through hole are fixed by the connecting member. Is done.

The housing is disposed on an upper surface of the insulating member, and the first insertion portion and the second insertion portion penetrating the through hole are inserted into and fixed to the mounting hole disposed in the upper portion of the insulating member. .
The housing is disposed inside the through hole, and the first insertion portion and the second insertion portion are inserted and fixed in the mounting hole disposed in the through hole.

A temperature sensor mounted on the connection member; and a control unit that controls the power supply unit according to a temperature sensed by the temperature sensor. The connection member is made of a conductor, and the temperature sensor is the connection member. Sense the temperature of
The connecting member further includes cooling fins that are formed to protrude from the outer peripheral surface of the housing.

  A synthetic resin lid member disposed on the insulating member to which the insulating member is coupled; and a base member having a stationary groove disposed on the lower portion of the lid member for placing the food container. The housing is fixedly coupled to the lid member.

The structure of the heater for a packaging machine of the present invention described above has the following effects.
The connecting member can easily connect the heat wire and the electric wire, and can improve workability such as assembly and replacement.

Further, in the present invention, when the heat ray is separated into the first heat ray and the second heat ray, the first heat ray and the second heat ray are joined via the connecting member without being joined by welding. Therefore, assembly becomes easier.
In addition, since the hot wire and the electric wire are inserted into the connecting member and connected without being broken, it is possible to prevent overheating from occurring at the folding point.
In addition, since the heat ray is inserted into the mounting hole and is not exposed to the outside, it is possible to prevent the heat ray from becoming red hot or overheating.

1 is a perspective view of a packaging machine equipped with a heater according to a first embodiment of the present invention. It is the one way perspective view showing the heater structure concerning a 1st embodiment of the present invention. It is the other direction perspective view showing the heater structure concerning a 1st embodiment of the present invention. It is a disassembled perspective view of the heater structure which concerns on the 1st Embodiment of this invention. FIG. 3 is a cross-sectional view taken along line A-A ′ of FIG. 2. It is sectional drawing of the heater structure which concerns on the 1st modification of the 1st Embodiment of this invention. It is a disassembled perspective view of the heater structure which concerns on the 2nd modification of the 1st Embodiment of this invention. It is sectional drawing of the heater structure which concerns on the 2nd Embodiment of this invention.

<First Embodiment>
FIG. 1 is a perspective view of a packaging machine equipped with a heater according to a first embodiment of the present invention, FIG. 2 is a one-way perspective view showing a heater structure according to the first embodiment of the present invention, and FIG. FIG. 4 is an exploded perspective view of the heater structure according to the first embodiment of the present invention, FIG. 4 is an exploded perspective view of the heater structure according to the first embodiment of the present invention, and FIG. FIG. 6 is a sectional view of the heater structure according to the first modification of the first embodiment of the present invention, and FIG. 7 is a second sectional view of the first embodiment of the present invention. It is a disassembled perspective view of the heater structure which concerns on the modification of this.

  As shown in FIG. 1, the present invention relates to a structure of a heater for a packaging machine that is mounted on a packaging machine and generates heat when a power source (not shown) is applied to heat-seal the wrapping paper 13. .

  As shown in FIG. 1, the packaging machine to which the present invention is applied includes a base member 10 in which a stationary groove 11 in which a food container 12 is placed is formed, and an upper portion of the base member 10 to place the stationary container 10. And a lid member 20 that covers the food container 12 placed in the groove 11.

The heater structure of the present invention is applied to the lid member 20, and the packaging material 13 made of vinyl material laminated on the food container 12 is heated to the food container 12 by heat generated in response to power application. Weld and heat seal.
As shown in FIGS. 2 to 5, the heater structure of the present invention includes an insulating member 30, a heat wire 40, a connecting member 50, and the like.
The insulating member 30 is disposed on the food container 12.
More specifically, the insulating member 30 is made of a mica plate or the like, and is coupled to the lower portion of the lid member 20 made of a synthetic resin material.
The hot wire 40 is made of a nichrome wire that generates heat when a power source is applied, and is formed in a belt shape.
In the present embodiment, the cross section of the hot wire 40 has a strip shape that is wider in the horizontal direction than the thickness, and is bent in the horizontal direction.
Unlike the present embodiment, the cross section of the hot wire 40 may be formed in an original shape or a polygonal shape.

  The hot wire 40 is attached to the lower surface of the insulating member 30 and is connected to an electric wire 70 connected to the power supply unit. When power is applied via the electric wire 70, the heat wire 40 is heated and the wrapping paper 13 is moved to the food container 12. Heat welded to the edge of

  Further, in the present embodiment, the heat wire 40 is separated into a first heat wire 41 and a second heat wire 42, and the first heat wire 41 and the second heat wire 42 have a substantially “⊂” ⊃ shape, respectively. Formed.

  The first heat wire 41 is coupled to the lower surface of the insulating member 30, and the second heat wire 42 is disposed on the same plane as the first heat wire 41 and is coupled to the lower surface of the insulating member 30. .

First insertion portions 43 are bent and extended at both ends of the first heat wire 41, and second insertion portions 44 are bent and extended at both ends of the second heat wire 42.
At this time, the insulating member 30 is formed with a through hole 31 through which the first insertion portion 43 and the second insertion portion 44 penetrate upward from the bottom.

Therefore, most of the first heat wire 41 and the second heat wire 42 are disposed below the insulating member 30 and bent upward to form the first insertion portion 43 and the second insertion portion 44. Passes through the through hole 31 formed in the insulating member 30.
The connecting member 50 electrically connects the heat wire 40 and the electric wire 70 to each other, and is formed in various structures and shapes.
The connecting member 50 may be fixedly coupled to the heat wire 40 and the electric wire 70 or may be detachably coupled.
Preferably, the hot wire 40 and the electric wire 70 are detachably coupled to the connecting member 50 to facilitate assembly and replacement.
In the present embodiment, the connecting member 50 includes a housing 51 and a mounting portion 52.
The housing 51 is made of a non-conductor or a conductor, and is preferably made of the conductor that conducts electricity well as in the present embodiment.

In particular, when the housing 51 is made of a conductor such as metal, the heat generated from the heat wire 40 can be radiated more easily, so that the occurrence of overheating can be minimized.
The housing 51 is disposed at the upper part of the insulating member 30, the lower part is in contact with the upper surface of the insulating member 30, and is fixedly coupled to the lid member 20 via a screw or the like.

As described above, since the housing 51 is fixedly coupled to the lid member 20, the housing 51 can be prevented from being shaken, separated or detached.
At this time, the lid member 20 is formed with an arrangement hole 25 into which the housing 51 is inserted.
The mounting portion 52 is formed in the housing 51, and the heat wire 40 and the electric wire 70 are electrically connected to each other by the mounting portion 52.
The heat wire 40 and the electric wire 70 may be directly connected to each other or indirectly connected via the mounting portion 52.

  When the hot wire 40 and the electric wire 70 are indirectly connected through the connecting member 50, the connecting member 50 is made of a conductor, and the hot wire 40 and the electric wire 70 are electrically connected.

  The mounting portion 52 may have various structures, and may be formed inside or outside the housing 51. In the present embodiment, the mounting portion includes a mounting hole 53 and a fastening member 54.

  The mounting hole 53 is formed through the housing 51 in the vertical direction and is disposed above the through hole 31. The heat wire 40 and the electric wire 70 are inserted into the mounting hole 53.

  More specifically, the first insertion portion 43 and the second insertion portion 44 of the heat ray 40 pass through the through hole 31 and then the mounting formed on the housing 51 inserted and arranged in the arrangement hole 25. The wire 70 is inserted into the mounting hole 53 through the lower portion of the hole 53, and the electric wire 70 is inserted into the mounting hole 53 through the upper portion of the mounting hole 53.

The fastening member 54 plays a role of fixing the housing 51 so as to prevent the heat wire 40 and the electric wire 70 inserted into the mounting hole 53 from being separated from the mounting hole 53.
The fastening member 54 has various shapes and structures. In the present embodiment, the fastening member 54 is a screw that is attached to the housing 51.

  Therefore, the fastening member 54 made of a screw is electrically connected while the heat wire 40 and the electric wire 70 inserted into the mounting hole 53 are in close contact with each other and fixed to the housing 51.

  Of course, in some cases, the fastening member 54 brings the heat wire 40 and the electric wire 70 into close contact with the housing 51 so that the heat wire 40 and the electric wire 70 are electrically connected via the housing 51 made of a conductor. You can also.

In addition, the connecting member 50 is formed of a known one-touch terminal connector or the like, and when the heat wire 40 and the electric wire 70 are inserted, the connecting member 50 is automatically fixed and coupled to the connecting member 50 and can be electrically connected to each other.
The heat wire 40 and the electric wire 70 can be more easily connected by the structure of the connecting member 50.

In addition, the hot wire 40 and the electric wire 70 that are connected to each other are connected in the vertical direction by the connecting member 50 and are not bent or bent in the horizontal direction, thereby preventing overheating generated from the bent portion. be able to.
In addition, the first insertion portion 43 and the second insertion portion 44 are fixed by the connecting member 50.

  More specifically, the first insertion portion 43 and the second insertion portion 44 penetrating through the through hole 31 are inserted into the mounting hole 53 disposed at the upper portion of the insulating member 30 to be connected to the fastening member 54. It is fixedly coupled to the housing 51 by the applied pressure.

The number of the connecting members 50 is the same as the number of the heat wires 40, and the one of the first insertion portion 43 and the second insertion portion 44 facing each other is inserted into the same mounting hole 53, and the electric wire 70.
In this embodiment, the said heat ray | wire 40 is isolate | separated into two and the said connection member 50 also consists of two.
Further, the first insertion portion 43 and the second insertion portion 44 that face each other are in contact with each other at a lower portion of the insulating member 30.

More specifically, the bent portion of the first insertion portion 43 at the first hot wire 41 and the bent portion of the second insertion portion 44 at the second heat wire 42 are located below the insulating member 30. The bent portions of the first insertion portion 43 and the second insertion portion 44 are in contact with each other at the lower part of the insulating member 30 so that the first heat wire 41 and the second heat wire 42 are interconnected. Thus, the wrapping paper 13 laminated on the top of the food container 12 can be thermally welded to the edge of the food container 12 in a hollow closed curve.
Meanwhile, as shown in FIG. 6, the first insertion portion 43 and the second insertion portion 44 that face each other may be separated from each other at a lower portion of the insulating member 30.

  In this case, the first heat wire 41 and the second heat wire 42 are separated from each other at the lower part of the insulating member 30, so that the wrapping paper 13 stacked on the upper portion of the food container 12 is attached to the edge of the food container 12. It is also possible to heat-weld to a hollow open curve that is not a hollow closed curve.

  At this time, the electric wire 70 is electrically connected to the first insertion portion 43 and the second insertion portion that are separated from each other, and supplies power to the first heat wire 41 and the second heat wire 42.

As a method of electrically connecting the electric wire 70 to the first heat wire 41 and the second heat wire 42, as shown in FIG. 6A, the first insertion portion 43 and the second insertion portion. 44 may be directly connected to the electric wire 70, or may be electrically connected through the housing 51 made of a conductive material as shown in FIG. 6B.
In addition, the connection member 50 may further include cooling fins 55 that protrude from the outer peripheral surface of the housing 51.
The heat generated by the electricity flowing through the heat wire 40 and the electric wire 70 can be easily radiated out of the housing 51 by the cooling fin 55.
Further, according to the present invention, the first heat wire 41 and the second heat wire 42 are joined via the connecting member 50 without being joined by welding, so that the assembly is facilitated.
In particular, since the hot wire 40 and the electric wire 70 can be detachably coupled to the connecting member 50, not only assembly but also repair is facilitated.
Meanwhile, the present invention may further include a temperature sensor 56 and a controller 60.
The temperature sensor 56 is attached to the connecting member 50 and senses the temperature of the connecting member 50.
For this purpose, the connecting member 50 is preferably made of a conductor.
More specifically, the temperature sensor 56 is mounted on the housing 51 and senses the temperature of the housing 51 made of a conductor.
The controller 60 controls on / off of the power supply unit according to the temperature of the connecting member 50 sensed by the temperature sensor 56.
The temperature sensor 56 and the controller 60 can prevent the hot wire 40 from being overheated and causing a fire or the like.
In addition, the heat wire 40 may be formed in a single band shape as shown in FIG.

  At this time, the first insertion portion 43 and the second insertion portion 44 are bent and extended at both ends of the heat wire 40, and the first insertion portion 43 and the second insertion portion 44 facing each other are attached to the mounting surface. It is inserted into the hole 53 and connected to the electric wire 70.

In this case, the first insertion portion 43 and the second insertion portion 44 may be inserted into the same connecting member 50 or may be inserted into a separate connecting member 50. In addition, it is preferable that the first insertion portion 43 and the second insertion portion 44 are separated from each other in order that the applied current moves from the first insertion portion 43 to the second insertion portion 44. .
At this time, the housing 51 is preferably made of an insulator so that the first insertion portion 43 and the second insertion portion 44 are not electrically connected to each other.

The heating wire 40 can be assembled more easily by the heater structure of the present invention described above, and only the heating wire 40 can be easily replaced when the heating wire 40 is broken. Since it connects without bending by the member 50, it can prevent that overheating generate | occur | produces.
<Second Embodiment>
FIG. 8 is a cross-sectional view of a heater structure according to the second embodiment of the present invention.
As shown in FIG. 8, the heater structure according to the second embodiment includes an insulating member 30, a heat wire 40, a connecting member 50, and the like.
A through hole 31 is formed in the insulating member 30, and the housing 51 constituting the connecting member 50 is disposed in the through hole 31.
Therefore, the through hole 31 is formed to be the same as or slightly larger than the size of the housing 51.
The lid member 20 is provided with an arrangement hole 25 into which the housing 51 is inserted.
The first insertion portion 43 and the second insertion portion 44 are inserted and fixed in the mounting hole 53 disposed inside the through hole 31.
With the structure as described above, the housing 51 can be supported inside the through hole 31 by the insulating member 30 without shaking in the horizontal direction.
Since other matters are the same as those in the first embodiment, detailed description thereof will be omitted.
The structure of the heater for a packaging machine according to the present invention is not limited to the above-described embodiment, and can be implemented with various modifications within a range that allows the technical idea of the present invention.

  The structure of the heater for a packaging machine according to the present invention can be used by being applied to a packaging machine.

11: Stationary groove 12: Food container 13: Wrapping paper 20: Lid member 30: Insulating member 40: Hot wire 50: Connecting member 54: Fastening member 56: Temperature sensor 60: Control unit 70: Electric wire

Claims (8)

In the structure of a heater for a packaging machine that is attached to a packaging machine and generates heat when a power source is applied from the power supply unit to thermally weld the wrapping paper to the food container and seal the food container,
An insulating member disposed on top of the food container;
A synthetic resin material lid member disposed on the insulating member and coupled to the insulating member;
A base member in which a stationary groove in which the food container is placed is disposed at a lower portion of the lid member;
A belt-like hot wire attached to the lower surface of the insulating member, connected to an electric wire connected to the power supply unit, and generates heat when the power is applied via the electric wire to thermally weld the wrapping paper to the edge of the food container. And a connecting member that electrically connects the heat wire and the electric wire,
A through hole is formed in the insulating member;
The connecting member is
A housing;
A mounting hole that is formed through the housing and communicated with the through-hole, into which the heat wire and the electric wire are inserted;
A fastening member mounted on the housing and inserted into the mounting hole, and a fastening member for fixing the electric wire to the housing and interconnecting them electrically .
Any one or more of the heat wire and the electric wire inserted into the mounting hole is detachably coupled to the housing by the fastening member,
The heat ray is formed by bending a first insertion portion and a second insertion portion,
The first insertion portion and the second insertion portion are fixed to the housing while being electrically connected to the electric wire by the fastening member after being inserted into the through hole and the mounting hole formed in the insulating member. ,
An arrangement hole is formed in the lid member so as to communicate with the through hole and into which the lower part of the housing is inserted and arranged.
The housing is fixedly coupled to the lid member while the lower part is in contact with the upper surface of the insulating member in a state of being inserted and arranged in the arrangement hole,
The housing is made of a conductor material,
A temperature sensor is attached to the housing to sense the temperature of the housing heated by the heat ray,
A structure of a heater for a packaging machine, wherein a control unit controls the power supply unit according to a temperature sensed by the temperature sensor . The hot wire includes a first heat wire coupled to the lower surface of the insulating member and a second heat wire coupled to the lower surface of the insulating member and disposed on the same plane as the first heat wire. ,
A first insertion portion is bent and extended at both ends of the first heat wire, a second insertion portion is bent and extended at both ends of the second heat wire, and the connecting member is the heat wire. The first insertion portion and the second insertion portion that face each other are inserted into the same mounting hole and connected to the electric wire. The structure of the heater for packaging machines according to 1 . The heat ray is formed in a single band shape, and a first insertion portion and a second insertion portion are bent and extended at both ends, and the first insertion portion and the second insertion portion facing each other are the mounting holes. The heater structure for a packaging machine according to claim 1 , wherein the heater is electrically connected to the electric wire. The structure of the packaging machine heater according to claim 1 , wherein the first insertion portion and the second insertion portion facing each other are in contact with each other at a lower portion of the insulating member. The first insertion portion and the second insertion portion facing each other are separated from each other at a lower portion of the insulating member, and the electric wire is electrically connected to the first insertion portion and the second insertion portion. The structure of the heater for packaging machines according to claim 2 or 3 . The housing is disposed on an upper surface of the insulating member, and the first insertion portion and the second insertion portion penetrating the through hole are inserted into and fixed to the mounting hole disposed in the upper portion of the insulating member. The structure of the heater for packaging machines according to claim 3 . The said housing is arrange | positioned inside the said through-hole, and the said 1st insertion part and 2nd insertion part are inserted and fixed to the said mounting hole arrange | positioned inside the said through-hole. Item 2. A heater structure for a packaging machine according to Item 1 . The structure of the heater for a packaging machine according to claim 1 , wherein the connecting member further includes a cooling fin protruding from an outer peripheral surface of the housing.

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