JPH0118489Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field This invention is a simple type of packaging for sealing the opening of the polyethylene bag by welding it when storing food products etc. in polyethylene bags. Concerning sealers.

(b) Conventional technology This type of sealing device in the past is
As seen in Publication No. 38959, the bag is evacuated with a vacuum pump and then the opening is welded and sealed with a heater, but the moisture inside the bag and the moisture and juices of the packaged items are sucked in. The drawback was that the outside air (air inside the bag) entered the main unit, contaminating the fan, motor, and other electrical parts.

(c) Purpose of the invention Therefore, the purpose of the present invention is to actively collect water or juice sucked into the suction passage into a saucer to prevent the inside of the main body from becoming dirty.

(d) Structure of the invention The structure of the invention is such that a suction passage is formed in the base for sucking outside air using a fan, and a receptacle that communicates with the suction passage is removably provided in the base.

(e) Embodiment 1 is a packaging sealer, which consists of a box-shaped base 2 with a substantially flat top surface and a lid 3 that rotatably covers the top surface of the base 2. . A welding heater 5 is installed in the front part of the upper surface of the base 2 in the length direction.
(for example, 80 W), and the upper surface of this heater 5 is covered with a heat-resistant insulating sheet material 4. A suction passage 6 having an abbreviated letter shape is provided approximately in the center of the upper surface of the base 2 and close to the heater 5 . The suction passage 6 protrudes slightly upward, with its suction port 7 opening toward the heater 5 side, and its drain port 8 opening into the interior of the base 2. Below the discharge port 8, a saucer 10 with an open upper surface is placed opposite to each other and is detachable from the base 2.
The saucer 10 forms a sealed chamber B with the upright wall 2c of the lower member 2a of the base 2 that supports it, and the hanging wall 11 of the upper member 2b of the base 2. A communication hole 12 is formed in the side of the sealed chamber B to communicate with the machine room A. A fan 14 driven by a motor 13 is provided in the machine room A, and a discharge port 16 is formed therein, communicating with a hole 15 formed in the side surface of the base 2. Therefore, when the saucer 10 is not installed in the base 2, the sealed chamber B is not formed, and even if the fan 14 is driven or outside air is sucked from the suction port 7, the suction force is It becomes extremely weak and it becomes impossible to create a vacuum inside the bag C.

A long heat-resistant elastic pressing section 20 is provided on the lower surface of the lid 3 to press the upper surface of the heater 5, and the pressing section 20 is provided with the suction passage 6 in between.
A pair of elastic pressing portions 21, 21 are provided parallel to the above. An insertion rod 22 that is inserted into and removed from an opening to be described later is vertically provided at a corner of the lower surface of the lid body 3.

The upper surface of the base 2 is formed with an opening 23 into which the insertion rod 22 is inserted, and the upper end of the operating rod 25, which can be moved up and down by a spring 24, faces into this opening 23. First and second protrusions 26 and 27 having different mounting heights are provided. 28 is a first switch that controls power supply to the motor 13, and 29 is a second switch that controls power supply to the heater 5.

To explain the electric circuit diagram, the normally open type first switch 28 is connected to the primary side, and the switchable type second switch 28 is connected to the secondary side via the transformer 30.
The motor 13 is connected to the normally closed contact 30 side of the second switch 29, and the normally open contact 31 is connected to the switch 29.
The heaters 5 are connected to each side. 33 is a drive indicator lamp for the motor 13, 34 is an energizing lamp for the heater 5, and 35 is an automatic return type thermostat that opens at about 50°C. This thermostat 35
The heater 5 is turned on for about 20 seconds, that is, at 50°C.

According to this configuration, when the opening of the bag C, which is made of polyethylene or the like and which encloses the object D, is inserted into the suction passage 6, and the lid 3 is gently closed,
First, the opening edge of the bag C is pressed by the pressing parts 21, 21, and the operating rod 25 is pressed by the insertion rod 22. At this time, the first protrusion 26 presses the first switch 28 to close it, and the motor 13 is driven via the transformer 30 to rotate the fan 14. At this time, the drive indicator lamp 33 lights up, and the air, moisture, and juice inside the bag C are sucked through the suction passage 6, and the inside of the bag C is evacuated, and the moisture and juice are collected in the saucer 10. It is.

Then, when the lid body 3 is further pressed, the second protrusion 2
At step 7, the contact piece (29a) of the second switch 29 is switched to the normally open contact 31 side to cause the heater 5 to generate heat, welding and sealing the opening edge of the bag C and lighting the energizing lamp 34. . Then about
The thermostat 35 is opened after 20 seconds have elapsed.

In this embodiment, the first and second switches 28 and 29 are actuated by the actuating rod 25, but they may be operated directly by the insertion rod 22.

(f) Effects of the invention Since the invention is constructed as described above,
Moisture or juice from the packaged product that flows out during vacuum suction of the bag can be collected in a saucer, thereby preventing dirt inside the main body and insulation deterioration of electrical parts such as a fan.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the packaging sealer of the present invention, FIG. 2 is a sectional view of the same, FIG. 3 is a sectional view of the same from a different direction, and FIG. 4 is a sectional view of the same from a different direction.
FIG. 5 is an electrical circuit diagram of the same. 2... Base, 5... Heater, 6... Suction passage,
10... saucer, 14... fan.

Claims (1)

[Scope of utility model registration request] A base having a welding heater disposed along the length of the upper surface and a suction passage near the heater for sucking in outside air using a fan, and the upper surface of the base being rotatable. a lid body provided with a pressing part that presses the top surface of the heater;
A packaging sealer characterized in that a saucer communicating with the suction passage is detachably provided in the base.