JPH0714161Y2 - Household packing machine - Google Patents

Description

[Detailed Description of the Invention] <Industrial field of application> The present invention mainly inserts foods such as vegetables, meats and fishes into a film-like bag for bag, and exhausts the air in the bag as much as possible. The present invention relates to a hermetic wrapping machine suitable for general households, which is used to heat-weld and seal an opening.

<Prior Art> There is a refrigerator as a device for storing food in general households, but it is necessary to seal this for food that loses its taste extremely when it is disliked or dried. Generally, it is wrapped with a synthetic resin film sheet. However, since such a seal cannot obtain sufficient storability of such food, a household hermetic packaging machine as shown in FIG. 6 and FIG. 7 has been marketed in recent years. After being inserted into the bag, air is taken in, the bag is sealed, and the pack is put in the refrigerator, whereby the storability of the food can be significantly improved. This hermetic packaging machine has a structure in which a lid body 2 is rotatably connected to a lower base body 1 as shown by an arrow in FIG. 6, and the lid body 2 is rotated slightly upward. An opening portion of a pack bag (not shown) is sandwiched between this and the base body 1, and a slide knob 3 provided on the lid 2 is operated to set an intake nozzle (not shown) to the pack bag. The air pump (not shown) is driven by pushing the switch button 4 to suck the air in the bag and discharge it from the exhaust port 5. After that, as shown in FIG. 7, the lid 2 is pushed down by pushing the pressing projection 6 provided on the upper surface of the lid 2, and the opening portion of the bag is pressed against the heater portion of the base 1 to be welded. .

<Problems to be solved by the device> Since the structure is such that the hand is pressed against the lid body 2 as described above, it is necessary to continue pressing for about 10 seconds required for welding the opening of the bag, and In addition to problems, there are individual differences in pressing force and pressing time, and if the pressing force or pressing time is insufficient or insufficient, welding failure, that is, sealing failure will occur.

<Purpose of the Invention> The present invention has been made in view of the above-mentioned conventional problems, and it locks the pressing state to the heater part by one-touch operation and automatically presses the pressing state after a predetermined time required for welding. Therefore, it is an object of the present invention to provide a household hermetic packaging machine that can release the above and can weld the pack bag with a constant pressing force and pressing time by a simple operation.

<Means for Solving Problems> In order to achieve the above-mentioned object, the household hermetic packaging machine of the present invention presses the opening of the pack bag in which food or the like is inserted against the heater by the pressing member. In a household hermetic wrapping machine for welding and sealing, a sealing angle is rotatably supported with one end as a fulcrum, and the pressing member and the claw piece are provided on the lower surface of the other end and the pressing operation section is provided on the upper surface of the other end. When,
An energizing switch of the heater which is turned on by the pawl when the sealing angle is moved downward by manually pressing the depressing operation portion, and a constant amount required for welding by the heater by turning on the energizing switch. A power source such as a solenoid driven for a time, a lock member that is moved by the power source and locks the pawl piece for a certain period of time required for welding, and a direction in which the engagement between the lock member and the pawl piece is released. The present invention is characterized by including a return member that constantly urges the lock member.

<Operation> In this household hermetic packaging machine, the bag for packing is sandwiched between the lower base and the upper lid, and the nozzle of the exhaust mechanism is inserted into the bag for packing. At this time, due to the pressing of the pressing packing on the front end of the lid body, the portion of the opening of the pack bag excluding the nozzle insertion portion is brought into close contact and the opening is sealed. Then, after the air in the bag is exhausted as much as possible by the air pump, when the pressing operation part is pressed, the sealing angle integral with this rotates downward with the rear end as a fulcrum, The attached pressing member presses the pack bag against the heater portion of the base body, and the claw piece turns on the switch. When the switch is turned on, the heater is energized to start the welding process of the pack bag. At the same time, when the switch is turned on, the power source is driven to move the lock member, and the pawl is locked by the lock member to press the pressing member. The pressing state of the pack bag by the above and the energization state of the heater and the power source by turning on the switch are maintained. Then, when the time required for welding the pack bag has elapsed, the power source is de-energized, and the lock member returns to its original state by the return member, thereby releasing the lock on the claw piece and by the pressing portion. The pressing of the bag for the pack is released.

<Embodiment> Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the drawings.

In FIGS. 1 to 5 showing an embodiment, a device main body 8 is provided on a lower base body 7 in which a welding heater (not shown) and the like are installed, and a support shaft 9 is attached to the device main body 8. A lid 10 is rotatably attached with the fulcrum as a fulcrum. And
As shown in FIG. 1, a lock member 11 having an H-shaped cross section and an elongated frame as shown in FIG.
Is provided slidably in parallel to the front end side of the lower base body 7, and the lock member 11 is provided with lock pieces 13 extending in orthogonal directions from both ends as shown in FIG. Each lock piece 13 has an insertion hole 14 formed therein. Further, the lock member 11 is held by the holder 15,
Further, it is urged in the direction opposite to the arrow in FIG. 5 by a return member 16 composed of a compression spring.

A power source consisting of a solenoid is provided near the lock member 11.
17 is provided, and the operating rod 18 of this power source 17 is a connecting rod.
The lock member 11 is connected to the lock member 11 by 19 so that the lock member 11 is moved in the arrow direction shown in FIGS. 4 and 5 against the biasing force of the return member 16 by the driving of the power source 17. .

As shown in FIG. 1, one end of the open end of a sealing angle 20 formed in a U shape as shown in FIG. 1 is pivotally attached to the support shaft 9 that supports the lid 10. Coaxial with
Moreover, the lid 10 and the lid 10 rotate together in the upward direction and individually in the downward direction, and are always urged upward by a spring (not shown). ing. On the lower surface of the other end of the angle 20, a pressing member 21 made of packing for pressing a pack bag (not shown) against the heater of the lower base 7 is fixed, and the lock piece 13 of the lock member 11 is fixed. A claw piece 22 is vertically provided on the lower surface facing the insertion hole 14, and an operating rod is provided on the upper surface of the other end.
23 is erected and extends through the lid 10 to the outside, and the pressing operation portion 24 is fixed to the outer rod end of the operating rod 23. Then, the insertion hole 26 of the claw piece 22 is formed in the top plate 25 of the base 7 at a position facing the claw piece 22, and the front end portion of the lid body 10 is pressed against a portion in the vicinity of the opening of the pack bag. A pressing packing 27 for tightly contacting each other is fitted. Insertion hole 14
A micro switch 28 is arranged below the.

Next, the operation of the hermetic packaging machine will be described.
10 and the angle 20 that rotates integrally with this are lifted upward, and the opening of the bag for packing in which foods and the like are inserted is sandwiched between these and the top plate 25 of the base 7, and the nozzle of the exhaust mechanism is inserted. Into the bag for packing. At this time, by pressing the packing 27 for pressing, the packing bag is in close contact except the nozzle insertion portion to seal the opening. Then, the air in the bag for packing is discharged by driving an air pump (not shown) to make the state as close to vacuum as possible. In this state, the third
When the pressing operation portion 24 is pressed as shown in the figure, the angle 20 is rotated downward to the state shown in FIG.
Presses the opening of the bag for the pack against the heater, and the claw piece 22 inserts the insertion holes 26 and 14 to turn on the micro switch 28 as shown in FIG. When the micro switch 28 is turned on, the power supply circuit to the heater is closed, the heater heats up, and the welding of the pack bag pressed by the pressing member 21 is started.

At the same time, the power source is turned on by turning on the micro switch 28.
17 is driven and the operating rod 18 is attracted, and the lock member 11 connected to the operating rod 18 via the connecting rod 19 is moved in the direction of the arrow in FIGS. 4 and 5, and the lock pieces 13 on both sides are moved. Engages with the claw piece 22 as shown in FIG. Therefore, even if the hand is immediately released after the pressing operation unit 24 is pressed, the claw piece 22 is locked and the pressing state of the pressing member 21 against the pack bag is maintained. In this case, the pack bag is continuously pressed with a preset constant pressing force.

When the micro switch 28 is turned on, a timer (not shown) starts a clock, and when the welding processing time preset in the timer elapses, that is, when the timer times out, the power supply to the power source 17 is stopped. It Therefore, the return member
The lock member 11 returns to its original state by the restoring force of 16, the lock on the claw piece 22 is released, and the angle is fixed by the spring.
20 is rotated upward, the pressing operation part 24 is returned to the original state, the pressing member 21 is separated from the pack bag, and the welding process is completed.

<Effect of the Invention> As described in detail above, according to the household hermetic wrapping machine of the present invention, by pressing the pressing operation portion, the switch is turned on to energize the heater and the power source to operate the lock member. Since the sealing angle is held in the pressed state of the pack bag by the pressing member and the lock is released after the lapse of a predetermined time, only one-touch operation of the pressing operation portion is required, and the pressing is continued during the welding time like the conventional machine. Since there is no need, operability is greatly improved.

Moreover, the pressing force and the pressing time are both constant, and the required welding quality is always maintained, and welding defects are eliminated.

Further, the power source such as solenoid is not directly used to obtain the pressing force of the welding surface as in the past, but it is locked to hold the state after manually obtaining the pressing force of the welding surface. Since the claw pieces are locked by driving the member for a fixed time required for welding, it is greater than the conventional power source used directly to obtain the pressing force on the welding surface. It does not require a large capacity, consumes less power, and has the advantage that the entire structure of the household hermetic packaging machine can be made compact, lightweight, and at low cost. By turning on the energizing switch of the heater which is turned on by the claw piece when the sealing angle is moved downward by pressing, a power source such as a solenoid which is driven for a fixed time required for welding at the heater is operated, and this power source is used. Yo Since the locking member is moved and the claw pieces are locked for the fixed time required for welding, the timing of energization for welding and the energization of the lock member can be reliably matched with a simple configuration, and welding with less power consumption There is an advantage that the work can be reliably performed.

[Brief description of drawings]

1 to 5 show an embodiment of a household hermetic packaging machine according to the present invention, wherein FIG. 1 is a right side view in section, FIG. 2 is a perspective view, and FIG. 3 is a perspective view in use. FIG. 4 is a partially cut front view, FIG. 5 is a partially cut bottom view, and FIGS. 6 and 7 are a perspective view of a conventional packaging machine and a perspective view of a used state, respectively. 1 ... Lower base, 10 ... Lid, 11 ... Lock member, 16 ...
… Returning member, 17 …… Power source, 20 …… Seal angle,
21 ... Pressing member, 22 ... Pawl piece, 23 ... Operating rod, 24 ... Pressing operation part, 27 ... Pressing packing, 28 ... Switch

Claims (1)

[Scope of utility model registration request] 1. A household hermetic wrapping machine in which an opening of a pack bag into which foods or the like is inserted is pressed against a heater by a pressing member to be hermetically sealed by fusion, and one end is rotatably supported and the other end. A sealing angle in which the pressing member and the claw piece are provided on the lower surface of the part and a pressing operation part on the upper surface of the other end, respectively, and the claw when the sealing angle is moved downward by manually pressing the pressing operation part. An energizing switch of the heater that is turned on by a piece, a power source such as a solenoid that is driven for a certain time required for welding in the heater when the energizing switch is turned on, and a power source that is moved by the power source and is required for welding. A lock member that locks the pawl piece for a certain period of time; and a return member that constantly urges the lock member in a direction to release the engagement between the lock member and the pawl piece. Household seal packaging machine.