JPH043923Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention involves forming a continuous film strip into a cylindrical shape using a former and feeding it forward, and then wrapping the cylindrical film around the packaged item fed into the film. The present invention relates to a packaging device for wrapping with

[Conventional technology]

For example, it has been conventional practice to wrap several containers A called pack containers containing liquid foods such as juice with shrink film and combine them into one package.

In this case, one continuous strip-shaped film B
A method is employed in which the film is passed through a former C while being sequentially fed out, and the former is formed into a cylindrical shape while the object to be packaged A is fed into the former and wrapped around it with a cylindrical film B'. and,
While pulling this film further forward together with the packaged object A, two welding devices D and E are placed in front of it.
A single package is obtained by sealing both left and right ends and the front and rear width directions of the continuous strip-shaped film B.

In this type of packaging device, it is necessary to properly set the continuous film strip B on the conveyance path F by pulling it straight in the feeding direction, such as by passing it through the former C, before operation. No effort was made to pull the film strip B straight.

[Problem that the invention attempts to solve]

Therefore, it was necessary to spend time and effort on setting it up. This is because, as mentioned above, there are two welding devices etc. in front of Former C.
Further, if the machine is driven, a drive section is naturally located near it, and it is extremely difficult to correctly set the continuous film on the conveyance path F from the front side of the machine.

The present invention aims to eliminate this drawback.

[Means for solving problems]

In order to achieve this purpose, in the present invention, the conveying path F is placed on the side of the conveying path F so that the former C maintains an attitude parallel to a reference line that forms the cross-sectional shape of the former C in a cross section perpendicular to the film feeding direction when standing up.
A pin 6 that can be thrust into the interior is provided in a freely undulating manner.

[Effect]

The strip-shaped film B is fed from the entrance of the former C (on the left side in FIGS. 6 and 7), and while passing through it, the left and right side plates 1, 1', the upper plate 2, and the left and right 2
It is guided by the two bottom plates and formed into a cylindrical shape along each inner surface thereof, and is pulled out further forward from the outlet of the former C (on the right side in FIGS. 6 and 7).

Therefore, it is necessary to properly set the cylindrical film B' on the transport path F before operating this device, and for this purpose, the cylindrical film B' must be pulled straight in advance. In that case, for example, as shown in FIG. 3, the pin 6, which has been pushed down to the side of the conveyance path F, is raised and projected into the conveyance path F. Then, the continuous cylindrical film B' is hooked onto this pin 6, which maintains a posture parallel to the reference line that forms the cross-sectional shape of the former C in a cross section perpendicular to the film feeding direction, and is passed to the side of the conveying path F. For example, if it is pulled toward the front, the subsequent cylindrical film B' will be pulled straight in the feeding direction on the conveying path F, thereby achieving the desired purpose. On the other hand, since this pin 6 only becomes a hindrance while the packaging device is in operation, it is placed, for example, in the position indicated by the chain line in FIG.

In this way, if you want to pull the film B' straight forward by hand after it has been formed into a cylindrical shape by the former C, insert the pin 6 into the conveying path F and insert the cylindrical film B' into the pin 6. All you have to do is hook it to the side of the transport path F and pull it. By simply doing so, the following cylindrical film B' will automatically be pulled straight forward.

〔Example〕

Embodiments of the present invention will be described based on the accompanying drawings.

One continuous strip-shaped film B is sequentially fed out and passed through the former C, and the former C forms the packaged object A into a cylindrical shape.
is sent in and wrapped around it with a cylindrical film B′.
A packaging device that obtains one package by sealing both left and right ends and the front and rear width directions while pulling the package further forward has one former C on the conveyance path F.
Two welding devices D and E are arranged in this order.

Former C is a molding tool that molds continuous strip-shaped film B into a cylindrical shape, and includes a flat top plate 2.
There are flat side plates 1, 1' hanging down from both sides. Inlet side of both side plates 1, 1' (Fig. 6,
On the left side of FIG. 7, an inclined edge 3 is formed downward from the upper plate 2, and vanes 4 are attached obliquely upward from the inclined edge 3, respectively. The band-shaped film B is guided by both wing plates 4, 4 and gradually formed into a cylindrical shape. On the exit side in front of the terminal end of the inclined edge 3 (on the right side in FIGS. 6 and 7), horizontal bottom plates extend horizontally from the two left and right side plates 1, 1', respectively. In the embodiment, a welding device D is placed immediately in front of the former C [for welding both left and right ends of the film B' after being formed into a cylindrical shape by the former C].
An electrostatic sealing device is used to weld the left and right ends of the cylindrical film B′, so that the ends must overlap at least vertically. Bottom plate 5,
5' are arranged vertically at predetermined intervals as shown in FIGS. 7 and 8. That is, left and right 2
The bottom plate 5 is located horizontally from the side plate 1 of one of the two side plates 1 and 1' toward the center, and the bottom plate 5 is positioned below the bottom plate 5 from the lower end of the other side plate 1' toward the center. The bottom plate 5' extends horizontally at a predetermined interval. When forming the continuous strip-shaped film B into a cylindrical shape using the former C, the two ends b and b' are connected to the inner bottom plate 5 and b' to the inner bottom plate 5 and the outer side, respectively, before pulling out the film. It is inserted between it and the bottom plate 5', maintained in this state, and pulled sequentially. and,
As shown in FIG.
3 and forward along the wing plates 4 and 4 (right side in Figure 7)
When the former C is passed through the former C together with the packaged article A that is being pulled and sent through the conveyance path F, the side plates 1 and 1', the upper plate 2, and the two left and right bottom plates 5 and 5' are passed between them. The cylindrical film B' is formed into a cylindrical shape along the inner surface, and when it leaves the former C, the left and right ends of the cylindrical film B' overlap each other. As shown in FIG. 9 when viewed from the bottom side, the two inner and outer films b and b' overlap on the bottom side of the packaged object A.

Then, when this cylindrical film B' is further pulled forward and passed over the electrostatic sealing device, as shown in Fig. 9.
b'' portion is continuously sealed to form a series of cylindrical packages along the outer periphery of the packaged item A, and this is further pulled forward to form another package shown as E in Figure 2.
When passed through two welding devices, the series of packages is welded b in the front and rear width direction of the packaged item A

Claims (1)

[Claims for Utility Model Registration] 1. A packaging device in which a strip-shaped film B is formed into a cylindrical shape by a former C and fed forward, and the cylindrical film wraps around the packaged object A fed into the film. , the conveying path F is placed on the side of the conveying path F so as to maintain a posture parallel to a reference line that forms the cross-sectional shape of the former C in a cross section perpendicular to the film feeding direction when standing up.
A packaging device using a band-shaped film, characterized in that a pin 6 that can be thrust into the interior is provided in a freely undulating manner. 2. Utility Model Registration Claim No. 1: When the pin 6 is erected, it is made to stand vertically upward on the conveyance path F.
A packaging device using a strip-shaped film as described in 2. 3. Utility model registration claim No. 3, in which the pin 6 is attached to a block 9 that can be rotated relative to a part of the fuselage, and the block 9 can be fixed to the part of the fuselage by a pin 11 such as a knock pin. A packaging device using a strip film according to item 1.