JPS6114976Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a packaging device, more specifically, to a film feeding device in a packaging device that pulls out any one of the films fed out from a plurality of film rolls and wraps the object to be packaged. Regarding improvements.

(Prior Art) A packaging device equipped with a film feeding device according to the applicant's earlier application will be explained with reference to FIG. 9. In the figure, 1' is a machine frame placed on a leg member 8'.

Inside the leg member 8', three film rolls A', B', and C' are rotatably supported in the vertical direction, and the films a', b', and c' are fed out through tension rolls, respectively, and are rolled upward. Pull it out.

A drawer opening 2' is opened on the upper surface of the machine frame 1' along the width direction, and a drawer roller 1 is provided on the back side of the machine frame.
On the front side of the machine frame, a cutter 9', a display board 14' for displaying the weight of the object to be packaged, etc., and a heating board 13' for pasting the bottom are provided.

Directly below the left and right ends of the outlet 2', fan-shaped receiving members 4' are rotatably provided, and film holders 3' are provided on the left and right sides at equal intervals around the circumference of the receiving members 4', respectively. Hold films a′, b′, and c′.

A handle 7' is connected to the receiving member 4', and by operating the handle, an arbitrary film end is positioned directly below the outlet 2'.

In the conventional device, the weighing pan 11' and the heating plate 1
In order to reduce the space between film holders 3' and downsize the device, the radius of rotation of receiving member 4' must be reduced, and the distance between film holders 3' must be narrowed. . If the distance between the film holders 3' is too narrow, the films a', b', and c' will adhere to each other, making it difficult to feed out the films.

(Purpose of the invention) The present invention was made in view of the above-mentioned conventional circumstances, and its purpose is to improve the structure of the film feeding device in the conventional packaging equipment, and to bring the drawer opening, weighing pan, etc. closer to the operator side to improve workability. It is an object of the present invention to provide a film feeding device in a packaging device that is excellent in quality.

(Structure of the invention) According to the present invention, the film feeding device in the packaging apparatus has an outlet opening in the upper surface of the machine frame along the width direction thereof, and pulleys or sprockets are rotatably disposed on both sides directly below the outlet. Each pulley, sprocket, chain, etc. is stretched in a chevron shape, and a holder is provided to hold each film end fed out from a plurality of film rolls by passing between both belts or both chains. The present invention is characterized in that a driving means is provided for moving the belt or chain so that one of its ends is located directly below the outlet.

The film feeding device of the present invention is not limited to manual packaging equipment that manually performs wrapping and folding, but also semi-automatic packaging equipment that performs only wrapping manually, or fully automatic packaging that performs all operations automatically. The present invention can be applied not only to devices but also to packaging devices incorporating a weighing mechanism and/or a label printer.

Incidentally, the above-mentioned mountain shape may be any shape of the mountain, and the shape of the top portion may be round, square, or flat.

(Example) An example of implementing the present invention will be described with reference to FIG.
In the figure, 1 is a machine frame, which is placed on the leg member 8.

Three film rolls A, B, and C are rotatably supported in the vertical direction inside the leg member 8, and films a, b, and c are fed upward through tension rollers, respectively.

A drawer opening 2 is opened along the width direction on the upper surface of the machine frame 1, and a weighing pan equipped with a pull-out roller 10 and a weighing mechanism 12 is provided on the front side of the machine frame, and a cutter 9 and a weighing pan equipped with a weighing mechanism 12 are placed on the back side of the machine frame. A display panel for displaying the weight of the object and a heating panel 13 for pasting the bottom are provided.

A pulley 4 is provided directly below the left and right sides of the outlet 2, and pulleys 6, 6 are arranged in a triangular shape with the pulley 4 at the apex.
are arranged, and an endless timing belt 5 is stretched around the outer periphery of the three members in a mountain shape.

Three holding bodies 3 for holding film ends are installed across the left and right timing belts 5, and a handle 7 is connected to one of the pulleys 6 so that the timing belt 5 is moved by the operation of the handle 7. Make it.

Thus, in the above embodiment, by operating the handle 7, an arbitrary holder 3 is positioned directly below the drawer opening, and the film is pulled out and wrapped.

Next, FIGS. 2 to 8 show the embodiments shown in FIGS. 2 to 7, which are modified examples of the present invention. For convenience of explanation, the same members as those explained in the first embodiment have the same reference numerals. and their explanation will be omitted. Note that the leg member 8 in the figure is omitted because it is the same.

The second embodiment will be explained with reference to FIGS. 2 and 3. In this embodiment, sprockets 24 and 26 are provided in place of the pulleys 4 and 6 of the first embodiment, and a chain 25 is stretched between the sprockets 24 and 26. The operation is the same as that of the first embodiment, so the explanation of the operation will be omitted.

If the third embodiment is explained with reference to FIG.
4 is a sprocket, which is provided directly below both left and right ends of the outlet 2. A chain 35 of a sprocket 34 is wound around the sprocket 34 so that both ends thereof are flared downward, and each is attached to the bottom surface of the machine frame 1 via a spring 36, and the chain 35 is stretched in a mountain shape. A holder 3 is provided across the chain 35, a handle 37 is provided in series with the sprocket 34, and a stopper (not shown) for temporary fixation is provided on the handle 37.

Therefore, in the above embodiment, the chain 35 is moved by the operation of the handle 37, and the chain 35 is moved by the operation of the handle 37.
5 is always kept under tension by the action of the spring 36. That is, a holder 3 holding an arbitrary film end
is moved directly below the drawer opening 2, and the wrapping function is performed with the handle 37 fixed by the stopper.

The fourth embodiment will be described with reference to FIG. 5. A sprocket 44 is provided directly below both left and right ends of the outlet 2, and a chain 45 is wound around the sprocket 44, with both ends of the chain 45 expanding downward. . Below the sprocket 44, sprockets 46' are provided at the front and rear, and both ends of the chain 45 are wound around and turned horizontally, and each end is supported by a spring 4.
6 to the front and back of the machine frame 1. The holder 3 is provided across the chain 45, and a stopper (not shown) is provided on the front sprocket 46'.
A handle 47 is provided in series. The operation is the same as that of the third embodiment, so the explanation will be omitted.

To explain the fifth embodiment with reference to FIG. 6, sprockets 54 are provided directly below both left and right ends of the outlet 2,
A chain 55 is wound around the sprocket 54 so that it spreads downward. Sprockets 56' are provided below the sprocket 54 at different heights in the front and rear, each end of a chain 55 is wound around the sprockets 56, turned horizontally, and fixed to the front surface of the machine frame 1 via springs 56, respectively. The other configurations and operations are the same as those of the fourth embodiment, and their explanations will be omitted.

As described above, in the first to fifth embodiments, since the chain or belt is stretched in a mountain shape with the sprocket or pulley directly below the outlet 2 as the apex, a sufficient distance between the films of the three holders can be secured, and the film can be separated from the film. There is no risk of sticking.

Next, the sixth embodiment will be explained with reference to FIG. 7.
6 and 26 are replaced with one large sprocket 96, and a chain 95 is stretched between the sprocket 94 and the sprocket 96.

Although this embodiment has the simplest structure, the holder 3
Since the two films are close to each other and there is a risk of them sticking together, it is practical to use two holders 3.

Next, the seventh embodiment will be described with reference to FIG. 8. The seventh embodiment is an example in which one-way rollers 31 are added to the holder 3 in the first embodiment. The one-way roller 31 has a built-in roller that rotates only in one direction, and completely prevents the film from falling off. Further, by providing the one-way roller 31 in the second to sixth embodiments, similar effects can be obtained.

Incidentally, in each of the above embodiments, manual operation was performed using a handle, but it is optional to connect a drive motor in place of the handle for automatic operation.

Furthermore, the present invention is not limited to any type of packaging device as long as it is equipped with a plurality of film rolls, and can be applied to packaging devices that do not have a measuring mechanism unlike the embodiments. It can also be applied to those with added . Although all of the present embodiments are table-type packaging devices, they can also be applied to table-top packaging devices.

(Operation and Effect) As described above, the present invention has an outlet opening along the width direction of the upper surface of the machine frame, and pulleys or sprockets are rotatably disposed on both sides directly below the outlet, and each pulley Alternatively, a belt or chain is stretched back and forth in the shape of a mountain with the sprocket as the apex, and a holder is provided between both belts or between both chains to hold each film end that is fed out from a plurality of film rolls. 1 of the film edge of
Since the film supplying device of the packaging apparatus is provided with a driving means for moving the belt or chain so that the belt or chain is located directly below the outlet, a sprocket or pulley with a small turning radius is placed directly below the outlet to The distance between the pasting heating plate and the outlet 2 can be narrowed and the measuring pan can be moved closer to the front side.

Therefore, the drawer opening and the weighing pan are located closer to the operator, and the operator can easily wrap the film pulled out from the drawer around the packaged object on the weighing pan, making the work easier and cleaner. It can be packaged and the installation area of the device can be reduced.

Also, the films held by the holder do not adhere to each other.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of the first embodiment of the present invention, Fig. 2 is a sectional view of the second embodiment, Fig. 3 is a three-dimensional view of the same, and Figs. 4 to 8 are sectional views of the third to seventh embodiments. A sectional view, FIG. 9 is a sectional view of a conventional example. In the figure, 1: Machine frame, 2: Outlet, 3: Holder,
4, 24, 34, 44, 54, 84, 94: Guide member, 5, 25, 35, 45, 55, 95: Conveyance member, 7, 37, 47, 57, 97: Handle, 9: Cutter, 10: Pull-out roller, 11:
Measuring pan, 12: Measuring mechanism, 13: Heating plate for bottom pasting, 14: Display plate.

Claims (1)

[Scope of utility model registration request] An outlet is opened along the width direction on the upper surface of the machine frame, pulleys or sprockets are rotatably arranged on both sides directly below the outlet, and a belt or chain is formed in a mountain shape forward and backward with each pulley or sprocket as the apex. etc., and a holder is provided between both belts or between both chains to hold each film end unrolled from a plurality of film rolls,
A film supply device for a packaging apparatus, comprising a drive means for moving the belt or chain so that one of the film ends of the holder is positioned directly below the outlet.