JPS6240891Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to the heat sealing of packaging films for packaging various items, and more specifically, to a simple method for manually performing the heat sealing operation. This invention relates to a packaging heat sealing device.

[Prior art]

Unlike fully automatic packaging in large factories,
For packaging in small quantities at small-scale factories, shops, etc., a hand-held type heat-sealing device, which is manually operated, is used to heat-seal the packaging film. In many cases, a tube-like packaging film is filled with the object to be packaged, and a pair of heat blocks are used to sandwich and heat-seal the area filled with the object to be packaged.

[Problem that the invention attempts to solve]

However, with the above-mentioned simple manual heat sealing device, there is no means to separate the heat-sealed packaged product from the packaging film to which it is connected, so a separate process is required and the number of working means increases accordingly. It was hot. For this reason, some products have been designed to perform the heat sealing operation and separating the packaged product in one process, but depending on the type of packaged product, the packaged product may not be separated individually.
There are cases where it is necessary to produce, ship, and sell a certain number of products in a row, such as 5 or 10 products, so in this case, the above heat sealing device cannot be used. , I tended to lack flexibility.

Therefore, although the present invention is a single device, it is possible to separate individual packaged products from the packaging film in arbitrary bag units while performing the heat sealing action, or conversely, it is possible to apply only the heat sealing action without separating the products. The purpose of the present invention is to provide a heat sealing device for packaging that can be selectively used.

[Means to solve the problem]

This invention aims to achieve the above objectives,
The technical means is that a cutting blade is placed upright in a direction transverse to the direction in which the packaging film is fed, and a lower heat block that is parallel to the cutting blade is protruded slightly above the tip of the blade. At the same time, a film holder for sandwiching the cutting blade back and forth is connected to the lower heat block, and an upper heat block is provided with a film holding plate facing the film holder directly above the lower heat block. The lower heat block is configured to be able to be pushed down with respect to the lower heat block, and the lower heat block is held by an arm that rotates around a horizontal support shaft and is configured to move downward along the cutting blade. The object of the present invention is to provide a heat sealing device for packaging, which is equipped with an arm lock vane that can be raised and lowered, and whose downward movement is prevented by the raising operation of the vane.

[Action]

According to the above means, when the arm lock vanes are folded down, when the upper heat block is pushed down, the packaging film is sandwiched between it and the lower heat block to form a heat seal. As the lower heat block moves downward, the cutting blade protrudes relative to the film holder, and the packaging film sandwiched between the film holder and the film holding plate is cut. Therefore, heat sealing and
Film cutting can be done at the same time. On the other hand, when the arm lock vanes are erected to prevent the arm from moving downward, even if the upper heat block is pushed down, it only touches the lower heat block and the lower heat block does not descend. , only a heat sealing operation is performed.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows an overall observation of a packaging heat sealing device, in which a cutting blade 2 is erected with respect to a substrate 1 on the front side of the device. A lower heat block 3 is arranged on the rear side of the cutting blade 2 in parallel thereto. The lower heat block 3 has a bar heater 5 fixed to the upper surface of the block frame 4, and the upper surface of the heater 5 is arranged to slightly exceed the tip of the cutting blade 2 in a normal state. As shown in FIG. 2, the lower heat block 3 has left and right parts held at the tips of an arm 7 that rotates around a horizontal support shaft 6 located relatively far behind, and is capable of applying the pushing force described later. When received, a downward movement is made along the cutting blade 2. Further, a film holder 8 is integrally connected to the lower heat block 3 and holds the cutting blade 2 from the front and back, and this moves up and down together with the lower heat block 3, and when lowered, the slit 8 of the film holder 8 opens.
The tip of the cutting blade 2 protrudes relatively from a.

As shown in FIG. 2, an L-shaped link 10 is connected to a relatively distal end portion of the arm 7 via a pivot 9, and a distal end of the L-shaped link 10 is provided opposite to and directly above the lower heat block 3. An upper heat block 11 is installed. This upper heat block 11 can be pushed down with a handle 12,
A heat stand 13 that comes into contact with the bar heater 5 when pressed down is attached to the block frame 14.
In addition, the upper heat block 11 has two
Two film holding plates 15, 15 are connected to each other, and are configured to contact the film holder 8 at two points, front and back, sandwiching the cutting blade 2, when pressed down. 16 is a spacer between the film holding plates 15, 15, and 17 is a fixing bolt screwed through this spacer 16. Further, the L-shaped link 10 is always urged to the raised position by a tension spring 19 attached to the L-shaped link 10 and the case frame 18.

An arm lock mechanism 20 is provided at the bottom of the arm 7.
will be equipped. This arm lock mechanism 20 has a structure similar to a hinge, and a fixed wing plate 22 is fixed to a fixed wall 21 provided diagonally at the lower front of the case frame 18.
A movable blade plate, that is, an arm lock blade plate 24 is attached to the arm lock blade plate 24 so that it can be raised and lowered, and a knob 25 for raising and lowering the arm lock blade plate 24 is connected to the arm lock blade plate 24. When the arm lock blade plate 24 is raised, this The lower portion of the arm 7 prevents the arm from moving downward about the horizontal support shaft 6.

Therefore, when the packaging film A is passed between the upper heat block 11 and the lower heat block 3 in the normal state as shown in FIG. and rotates against the tension spring 19, the heater stand 13 comes into contact with the bar heater 5 as shown in FIG.
5 and 15 are in contact with each other, and the packaging film A is placed between them.
are sandwiched, and the packaging film A is heat-sealed. However, since the bar heater 5 projects slightly above the tip of the cutting blade 2, the film is not cut at this point. Therefore, if the arm lock vane 24 is erected as shown by the solid line in FIG. 3 or as shown in FIG. 5, the arm 7 will not move downward even if the upper heat block 11 is pushed down any further. , in the end only heat sealing is performed.

On the other hand, as shown in the chain line in FIG. 3 and as shown in FIG.
If the arm 7 is left unlocked, the pushing force of the upper heat block 11 acts on the arm 7, which moves downward around the horizontal support shaft 6, and as a result, the slit 8a of the film holder 8 opens as shown in FIG. Through this, the cutting blade plate 3 projects relatively upward and the packaging film A is cut. This cutting is performed with the film being held between the film holding plate 15 and the film receiving plate 8 at the front and back points of the cutting blade 3, respectively, so that the packaging film does not escape and can be cut reliably. It will be done.

In addition, although the packaging film A is depicted as if it were a single piece in the drawing, this is for the purpose of simplifying the illustration; in reality, the packaging film has a tube shape, and the required portions of the packaging film are filled with the items to be packaged. It is thick because of its thickness.

[Effects] As detailed above, according to the present invention, the downward movement of the lower heat block can be locked by raising or lowering the arm lock blades, or by lock-free, the packaging film can be Since it is possible to select only the heat sealing function or to select the heat sealing function and film cutting function at the same time, it has the advantage of being able to be used flexibly depending on the type of packaged item and packaging form, even though it is a single device. .

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; FIG. 1 is a perspective external view of a packaging heat sealing device, and FIG.
FIGS. 3 and 4 are vertical side views for explaining the operation, and FIGS. 5 and 6 are enlarged perspective views of the main parts for explaining the selection and switching operation of the device functions. be. 2...Cutting blade, 3...Lower heat block, 6...Horizontal support shaft, 7...Arm, 8...Film holder, 11...Upper heat block, 15...
Film holding plate, 24...Arm lock wing plate.

Claims (1)

[Scope of utility model registration request] A cutting blade is placed horizontally to the packaging film feeding direction, and a lower heat block parallel to the cutting blade is placed close to the cutting blade so as to protrude slightly upward from the tip of the blade. A film holder that holds the film blade back and forth is connected to the lower heat block, and the upper heat block, which has a film holding plate for the film holder directly above the lower heat block, can be pushed down with respect to the lower heat block. The lower heat block is held by an arm that rotates around a horizontal support shaft and is configured to move down along the cutting blade, and is equipped with an arm lock vane that can be freely raised directly below the upper arm. However, the heat sealing device for packaging is configured such that the downward movement is prevented by the upright operation of the vane.