JP2898127B2 - Packaging equipment with film - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging apparatus for spirally winding a thin resin film having a certain degree of adhesiveness and extensibility, such as Saran Wrap (trade name), around an object to be packaged. .

[0002]

2. Description of the Related Art Conventionally, long objects such as building materials are packaged in such a manner that an appropriate number of them are collected and a relatively wide film is spirally wound around the assembly and bundled. This facilitates handling such as transport and prevents damage during transport. Conventionally, various types of packaging methods or apparatuses for winding a resin film, for example, those disclosed in JP-B-57-13442 and JP-B-59-46845 have been developed, and automatic packaging is performed. However, there are the following problems.

[0003]

A package wound by a conventional film-wrapping device has its entire periphery (side surface) exposed by the film, which makes it easy to handle and avoids scratches during handling. Although it is preferably prevented, there is a drawback that it is difficult to remove the wound film, and it takes time to remove the film. Further, if a blade is used for the removal, there is a concern that the packaged object may be damaged.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems of the prior art, and therefore, a film which is packaged so that it can be easily and quickly removed without fear of damaging the packaged object. To provide a packaging device.

[0005]

SUMMARY OF THE INVENTION A film packaging apparatus according to the present invention includes a film winding device 10 having a film feeding unit 12 circulating along an annular passage 11 provided in a machine frame; A guide roller 7 that includes a conveyor 5 that feeds through the package, and further guides a string bundle 6 installed on the machine frame and a string fed from the string bundle to an upper surface of the package; Receiving member 17 installed on the side in the traveling direction from the film feeding unit
And a string presser 9 that moves forward and backward in opposition to the receiving member to press the string end, and a string cutter that cooperates with the receiving member to cut the string.
8 is included.

[0006]

In this packaging apparatus, the string 3 unreeled from the string bundle 6
The object to be packaged is sent out so as to be fed out while being held against the string while the tip of the package is held between the string presser 9 and the receiving member 17, so that the string 3 is attached to the upper surface of the object to be packaged by the film. The wrapped material is spirally wound with a film with a single string attached along its length. Therefore, when removing the film from the packaged object, the string may be lifted so as to grip the protruding end of the string and pull it away from the side of the packaged object. Cut or staggered and easily removed.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. The packaging apparatus according to the present invention is characterized in that the film 2 is wound along with the string 3 along the longitudinal direction of the article 1 to be packaged. As shown in FIGS. It includes a machine frame 4 on which the wrapping device 10 is mounted, and a conveyor 5 for feeding the articles 1 to be packaged.
Pass through. A string bundle 6 for storing the strings and a guide roller 7 are attached to the machine frame 4 to attach the strings 3 along the upper surface of the articles 1 to be conveyed by the conveyor 5, and the guide rollers 7 are adapted to the dimensions of the articles to be packaged. It is movably supported up and down by an air cylinder 7a or the like so that it can be adjusted correspondingly.

At a position a certain distance away from the cord bundle 6 in the direction of conveyance of the conveyor indicated by arrow A in FIG.
Is installed. The film winding device 10 includes a guide roller 7.
In this position, the conveyor 5 is separated as shown in FIGS. 1 and 2 so that the film 2 is wound on the lower surface of the object 1.

Upright rods 5a are provided at appropriate intervals on both sides of the conveyor 5 so as to guide the articles to be packaged on the conveyor. The guide row
The la 7 serves to guide the unwound cord 3 and press the upper surface of the packaged object together with the string, and therefore has a length capable of pressing the entire width dimension of the packaged object as shown in FIG. Is preferred.

As shown in FIGS. 1, 3 and 5, the film winding device 10 has an annular passage 11 provided in a vertical plane.
And a roll 11 for supporting the rolled film.
A film feeding unit 12 and a cutter 13 for the film 2 which circulate along the film are formed.
3 is operated by the motor 15.

The conveyor 5 is installed so as to pass through the annular passage 11. Usually, a roller conveyor is used as the conveyor, and is driven by a motor 16. The film feeding unit 1 is moved along the annular passage 11.
A device for circulating the film 2 around an object by circulating the film 2 in a spiral shape is well known, and therefore, a description of such a portion is omitted.

Further, in this apparatus, a receiving member 17 is installed at a position slightly below the conveying surface of the conveyor 5 directly below the cord presser 9 in relation to the cord presser 9, and when the cord presser 9 descends, it is located between the receiving member 17 and the receiving member 17. It is configured to sandwich the string 3. String retainer 9
The receiving member 17 is preferably provided at a position on the center line of the conveyor as shown in FIG. Preferably, a projection 9a is provided on the lower surface of the string presser 9 as shown in FIG.
7a are formed to suitably hold the string. In addition, these ridges and concave grooves may be provided in reverse.

Further, as shown in FIGS. 1 and 4, a guide roller 19 for pressing an article to be packaged is installed on a support member 18 of a mounting plate 18a of the string cutter 8, and the guide roller 19 is supported by the support roller. It is configured to be vertically movable by an actuator such as an air cylinder 20 together with the member 18. An air cylinder 21 for operating the string cutter 8 is provided on the support member 18, and the string cutter 8 is lowered by the air cylinder 21 in a state where the string is held down by the string presser 9, and is co-operated with the receiving member 17. The string 3 can be cut by the operation. The cylinder 22 provided on the mounting plate 18a is
The air cylinder plays a role of a cushion, and thereby enables the string cutter 8 to be lowered relative to the string presser 9.

In operation, the end of the cord extending from the cord case 6 passes through the guide roller 7 and is held between the cord holder 9 and the receiving member 17 by the conveyor 5 so that the object 1 to be packaged is moved in the direction of arrow A. When the tip of the packaged object 1 hits the string and draws out the string, and reaches the film winding device 10, the film feeding unit 12 is operated, and the string 3 is attached to the upper surface of the packaged object 1. The film 2 is wound around the package 1. When the object to be packaged is started to be wound by the film, the string cutter 8, the string presser 9 and the guide roller 19 are raised together with the support member 18 by the air cylinder 20 as shown in FIGS. , Does not hinder the passage of the packaged object 1. The packaged object 1 is fed by the conveyor 5 and at the same time the film 2 is wound by the circulation of the film feeding unit 12 while attaching the string to the upper surface.
As shown in the spiral. When the object to be packaged is wound with the film, the cutter 13 is operated by the motor 15 to cut the film.

As shown in FIG. 2, when the article to be packaged 1 has passed the position of the film winding device 10, the string presser 9 is advanced with respect to the receiving member 17 by the air cylinder 20, that is, the support member 18 is lowered. 8, the string presser 9 and the receiving member 1
The cord 3 is sandwiched between 7 and held. Then air cylinder 2
By the operation of 1, the cutter 8 is lowered, and the string is cut as shown in FIG. Then, when the film 2 starts to be wound around the next packaged object 1, the support member 18 such as a string cutter rises,
Enter the next packaging cycle.

In the above-described apparatus, the air cylinder 22 is used to enable the string cutter 8 to move relatively downward with respect to the string presser 9. If desired, the air cylinder 22 may be used instead of the air cylinder as shown in FIG. , String holder 9 and mounting plate 18a
May be provided between them. Further, in the above embodiment, the cord presser 9 and the cord cutter 8 are moved up and down with respect to the receiving member 17. However, in some cases, the cord presser 9 is moved back and forth to press and release the cord and cut the cord. Is also good.

FIG. 6 shows an example in which a film 2 is spirally wound around a rectangular parallelepiped elongated packaged object 1 without any gap by this packaging apparatus. As shown in FIG. Film 2 with book string 3 attached
Is wrapped around. It is needless to say that the article to be packaged is not limited to a rectangular parallelepiped, but may be of another shape. At least one end 3a or 3b of the string 3 attached to the object to be packaged projects from the film 2 at the end, and the length of the projection is usually large enough to hold the end of the string.

[0018]

As described above, according to the packaging apparatus of the present invention, a single cord can be attached to the article to be packaged along the longitudinal direction and can be suitably packaged by a film. The package wrapped with the film with the string attached thereto is lifted so that the end of the string is pulled up, so that the wound film is cut or shifted so that it can be easily removed. Therefore, the film can be quickly and extremely easily removed.

[Brief description of the drawings]

FIG. 1 is a side view showing an example of a packaging device according to the present invention.

FIG. 2 is a side view showing a state of one operation stage of the device.

FIG. 3 is an end view seen from the right side in FIG. 1;

FIG. 4 is a perspective view of a main part of the device.

FIG. 5 is a view taken along line BB of FIG. 1;

FIG. 6 is a perspective view showing an example of a product packaged by the packaging device of the present invention.

FIG. 7 is a side view of a main part of the device.

FIG. 8 is a side view showing one stroke of a main part of the device.

FIG. 9 is a side view showing another step of the main part of the device.

FIG. 10 is a side view of a main part showing another embodiment of the apparatus.

[Explanation of symbols]

 5 Conveyor 6 String Bundle 7 Guide Roller 8 String Cutter 9 String Holder 10 Film Winding Device 11 Annular Path 12 Film Feeding Unit 17 Receiving Member

Continuation of the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B65B 61/18 B65B 11/06 B65B 27/00 B65B 27/10 B65D 75/32 B65D 75/66

Claims (1)

(57) [Claims] 1. A film winding device having a film feeding unit that circulates along an annular passage provided in a machine frame, a conveyor for feeding a packaged object through the annular passage, and the machine frame. A guide roller that guides a string bundle installed in the bundle and a string fed from the string bundle to the upper surface of the packaged object, a receiving member installed on the traveling direction side from the film feeding unit, and a string end. A film packaging apparatus, comprising: a string presser which moves forward and backward in opposition to the receiving member for pressing, and a string cutter which cuts a string in cooperation with the receiving member.