JPH0144406Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention creates a vacuum inside a plastic film packaging bag containing food, seals the opening of the packaging bag, and then cuts the food into a plastic film packaging bag. This invention relates to a tabletop vacuum packer that completely seals and evacuates when storing and preserving items.

(Prior art and problems) As shown in Fig. 3, the tabletop vacuum packer has a heat insulating structure on the top surface of the main body 1 which houses equipment (intake fan motor, transformer, micro switch, etc. - not shown). A heater 3 for welding a packaging bag and a heater 4 for fusing are arranged in parallel with each other via a material 2, and a flat intake cylinder 5 has an intake passage 5a at the center of the upper surface and a pin 5b protruding from the lower surface. It is attached to be movable up and down, and a tip insertion hole 1a for a pin 5b is provided on the top surface of the main body 1. Also, on the inner surface of the lid body 6, there is a band-shaped elastic band for pressing the packaging bag onto each of the heaters 3 and 4. A band-shaped elastic body 8 (made of sponge rubber or the like) is attached to seal the opening of the packaging bag, which has a recess 8a that fits into the body 7 (made of heat-resistant rubber or the like) and the upper surface of the suction pipe 5. There is.

Then, the opening of the packaging bag containing food is inserted into the suction tube 5 and placed on the top surface of the main body 1, the lid 6 is closed, and the suction tube 5 is rotated downward by the elastic body 8. The pin 5b is passed through the lower part of the packaging bag to prevent it from moving, and the opening of the packaging bag is pressed and sealed, and the intake fan motor is operated to suck the air inside the packaging bag from the intake cylinder 5. Make it a vacuum state.

Next, after the welding heater 3 is energized to weld the opening of the packaging bag, the fusing heater 4 is energized to fuse and cut.

By the way, as mentioned above, when the suction cylinder 5 rotates downward and the pin 5b stops the packaging bag from moving, if the film of the packaging bag is thin, the pin 5b can penetrate. , if thick, pin 5
It may become impossible to penetrate b.

In such a case, a pin 5b is attached to the lower part of the packaging bag.
A plurality of wrinkles are formed extending inward around the pressing point, and in this state, the welding heater 3 after vacuuming is
When sealing is performed, the wrinkled portion is not completely sealed and a communication path with the outside air is formed, resulting in a disadvantage that a vacuum state cannot be maintained.

In addition, when the upper part of the packaging bag inserted into the intake pipe 5 is rotated downward, the weight of the food may cause it to shift forward (to the right in the drawing) and cause the upper part of the packaging bags on the left and right sides of the intake pipe 5 to shift. There are disadvantages in that wrinkles occur and these wrinkles extend inward, resulting in the same drawbacks as described above.

Furthermore, the conventional packaging bag located around the suction pipe has the disadvantage that when the air inside the packaging bag is sucked to create a vacuum state, the upper and lower parts of the packaging bag are pinched together.

The present invention has a suction pipe structure that prevents the upper and lower parts of the packaging bag from being pinched when air is sucked inside the packaging bag, and wrinkles of the packaging bag that occur on the upper and lower parts of the suction pipe. The purpose is to provide a means to prevent the occurrence of

(Means for Solving the Problems) The present invention has a packaging bag welding heater and a fusing heater arranged in parallel on the top surface of the main body, which has an internal equipment storage chamber, through a heat insulating material, and at the center of the top surface of the main body. A suction cylinder is provided to be movable up and down, and an elastic body for pressing the packaging bag onto the two heaters is provided on the inner surface of the lid, and a recess for pressing the opening of the packaging bag against the upper surface of the main body and the suction cylinder. In the vacuum packer, the bottom wall of the suction cylinder is formed to protrude forward from the top wall, and the elastic body that contacts substantially the entire area of the bottom wall of the suction cylinder is provided on the top surface of the main body. Furthermore, an arc-shaped elastic body that is curved and bulged toward the opening end of the packaging bag is vertically disposed in the recess of the elastic body provided on the inner surface of the lid that presses the suction pipe.

(Example) Embodiments of the present invention will be described with reference to the drawings.

Note that the same parts in the conventional example are given the same reference numerals.

As shown in FIG. 1, heaters 3 and 4 for welding and fusing are arranged in parallel on the top surface of the main body 1 of the desktop vacuum packer with a heat insulating material 2 in between, and a lid body 6 is placed on the inner surface. The point where the band-shaped elastic bodies 7 and 8 are provided is the third point.
This is the same as the conventional example shown in the figure.

Reference numeral 8b denotes an arc-shaped elastic body (made of sponge rubber or the like) that bulges forward and hangs down with one end attached to the recess 8a formed in the elastic body 8.

Reference numeral 9 denotes an intake cylinder having an intake passage 9a provided in the center of the upper surface of the main body 1 so as to be freely movable up and down, and the bottom wall 9b of the intake cylinder 9 has a plate-shaped extension portion 9d projecting forward from the upper wall 9c. At the same time, a thin plate-shaped non-slip projection 9e is provided on the back surface of the widthwise central portion of the distal end portion of the extending portion 9d.

Reference numeral 10 denotes an elastic body such as sponge rubber provided on the top surface of the main body 1. When the intake pipe 9 rotates downward, the elastic body 10 covers almost the entire bottom surface of the bottom wall 9b having the extending portion 9d. It is set and arranged in a position where it contacts.

Therefore, as shown in FIG. 2, when the opening of the packaging bag 11 containing food is inserted into the suction tube 9 and the lid 6 is closed as described above, the recess 8 of the elastic body 8
The lower end of the arc-shaped elastic body 8b provided in the upper part 11b of the packaging bag 11 is inserted onto the upper wall 9c of the suction pipe 9. The suction pipe 9 is elastically deformed so as to be pulled toward the left side), and the suction pipe 9 is rotated downward, and the packaging bag 1 is
1 is pressed onto the elastic body 10 by the bottom wall 9b having the extension portion 9d of the suction pipe 9 and the protrusion 9e (the openings of the packaging bags 11 on both the left and right sides of the suction pipe 9 are pressed against the elastic body 8). ).

Therefore, the upper portion 11b of the packaging bag does not shift forward from the upper wall 9c of the suction pipe 9, and the lower surface of the bottom wall 9b having the extension portion 9d of the suction pipe 9 forms a wide flat surface. Therefore, wrinkles do not occur in the upper part 11b and lower part 11a of the packaging bag 11, and since the protrusion 9e is thin and plate-shaped, the lower part 11a is only slightly indented in the elastic body 10. It functions as a non-slip when the packaging bag is moved slightly during the vacuuming process, and does not cause wrinkles.

Further, due to the protrusion of the extending portion 9d, the intake passage 9
Since the direction of intake air in the packaging bag 11 to a is upward and pushes up the upper part 11b of the packaging bag 11, the upper and lower parts 11b, 1 near the front of the intake pipe 9
There is no adsorption phenomenon of 1a.

(effect) The present invention has the following effects.

(a) An arc-shaped elastic body attached vertically to the elastic body for downward rotational pressing of the intake cylinder and sealing the opening of the packaging bag,
Since the upper part of the packaging bag inserted into the suction cylinder is pulled in, the upper part does not shift from the upper wall of the suction cylinder, and the packaging bag is inserted into the wide flat lower surface of the bottom wall where the suction cylinder extends. Since the lower part is pressed against the elastic body, there are no wrinkles in the upper and lower parts of the packaging bag, the opening of the packaging bag is completely sealed, and the vacuum state can be maintained reliably. can.

(b) Due to the extension formed in the suction cylinder, there is no adhesion of the packaging bag near the front of the suction cylinder during vacuuming, and the vacuuming inside the packaging bag can be performed quickly and reliably.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an embodiment of the present invention, FIG. 2 is a sectional view of a main part, and FIG. 3 is a perspective view of a conventional example. 1... Body, 6... Lid, 8, 10... Band-shaped elastic body, 8b... Arc-shaped elastic body, 9... Intake cylinder,
9b...Bottom wall, 9d...Extending portion, 9e...Protrusion,
11...Packaging bag.

Claims (1)

[Scope of utility model registration request] A heater for welding the packaging bag and a heater for cutting the packaging bag are arranged in parallel on the top surface of the main body, which has an equipment storage chamber inside, via a heat insulating material, and a suction pipe is provided in the center of the top surface of the main body so as to be able to move up and down. In a vacuum packing machine, the inner surface is provided with an elastic body that presses the packaging bag onto the two heaters, and an elastic body that has a recess in the center that presses the opening of the packaging bag against the upper surface of the main body and presses the suction cylinder. , the bottom wall of the intake cylinder is formed to protrude forward from the top wall, an elastic body is provided on the upper surface of the main body that comes into contact with substantially the entire area of the bottom wall of the intake cylinder, and further on the inner surface of the lid body that presses the intake cylinder. A desktop vacuum packer characterized in that an arc-shaped elastic body that is curved and bulged toward the opening end of the packaging bag is vertically disposed in the recessed part of the elastic body.