JPH0737243B2 - Paper lid crowning method and device in an automatic boxing machine - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for crowning a paper lid in automatically packing a paper box with a loose load such as nails, bolts and nuts.

[Prior art]

When an appropriate amount of heavy metal parts such as bolts and nuts are contained in a box made of cardboard having a rectangular shape, and then a lid is applied to the box, the paper box is deformed, so This paper box is crowned manually, and when automatically performing such a work, a boxing device mainly for fruits has been disclosed in JP-A-58-82806.

[Problems to be solved by the invention]

That is, when packing the above-mentioned bolts and nuts in a box, when the container for packing the box is a paper box, the side surface a of the paper box A is moved outward as shown in FIG. Swelling is a common experience every day. By the way, in a factory for manufacturing the above bolts and nuts, when trying to pack the manufactured bulk goods in the paper box, the bulge interferes and the paper lid B cannot be mechanically capped on the paper box A. Until then, the crown had to be relied on manually. Therefore, even if a certain number of such bolts are automatically packed into a box, the crowning work is troublesome, and this is an overflow path for automation.

Further, since the device according to the above-mentioned Japanese Patent Laid-Open No. 58-82806 is complicated in structure and operation, it cannot be applied to a relatively small paper box containing heavy metal parts.

In view of such a point, the present invention provides a method and a device for crowning a paper lid, which can correct the bulge of a paper box filled with bulk and automate the crowning work of the paper lid.

[Means for solving problems]

According to the present invention, a paper lid is supplied from above to a square hole of a fixed frame that is slightly larger than the outer shape of the paper box, and the paper lid is erected at the upper edge of the square hole with the upper part inclined inward. A paper box that fits over the flange wall and is packed with loose cargo is passed through the straightening hole in the guide skirt that is installed downward with the upper part inscribed at the rim of the square hole. It features a paper lid crowning method that corrects the bulge on the side and pushes up through the straightening hole from below to the position where the paper lid comes out of the flange wall upward, and further, it is a corner slightly larger than the outer shape of the paper box. A hole is provided in the fixed frame, the upper part of the square hole is tilted upward to incline the upper part, and the flange wall is erected. A guide skirt with a downward expansion that is a correction hole is hung down. The above method is implemented by providing paper lid setting means for externally fitting the paper lid onto the flange wall from above, and pusher means for pushing up the paper box carried directly under the correction hole from within the guide skirt through the correction hole. Is characterized by.

[Action]

According to the above means, the paper box filled with the loose load is inscribed in the square hole of the fixed frame and is passed downward through the straightening hole of the guide skirt that is hung downward to pass upward from the lower side of the paper box. While the bulge is corrected, the paper lid is fitted on the flange wall erected at the upper edge of the square hole, so the paper box rushes into the paper lid by the above passage, and the paper lid is further removed from the flange wall. You can automatically cover the paper box with a paper lid by pushing it up to the position where you can pull it out,
There is no need for a conventional manual cover step or a complicated structure for vertically moving a frame provided with a correction hole each time.

〔Example〕

 Hereinafter, the details of the present invention will be described with reference to the drawings.

FIG. 1 shows the structure of the paper lid covering work unit 1, in which a rectangular square hole 3'is formed in the center of a fixed frame 2 made of a horizontal plate. The size and shape of the square hole are formed to be slightly larger than the normal outer shape (that is, manufacturing size) of the box body before storing the discrete load in the box body A shown in FIG. On the four sides of the rim of the square hole 3 ', however, flange walls 4 and 5 are erected so as to project upward from the fixed frame 2, and the upper portions of the flange walls 4 and 5 are formed in the square hole 3'. In order to facilitate the external fitting of the paper lid B which is lowered from above, the paper lid B is slightly inclined inward toward the inside of the square hole. Below the square hole 3 ', guide skirts 6 and 7 whose upper part is inscribed in the rim of the square hole are provided in a downwardly spread shape, and a square correction hole 3 is formed inside the guide skirt. Is forming. It should be noted that the one flange wall 4 among the above flange walls 4 and 5 may be continuously provided on the upper portion of the guide skirt 6 located below as shown in the drawing. These guide skirts 6 and 7 are bulged on the respective side surfaces of the paper box A from the outside when the paper box A packed in bulk and sent to a position directly below the correction hole 3 rises and passes through the guide skirt from the outside. This is for reaching the above correction hole while forcibly pressing.

As shown in FIG. 2, a paper box feeding means 8 is provided to the paper lid covering work unit 1 toward a position directly below the correction hole 3. The means 8 is for feeding the paper box A packed with loose loads such as bolts at another place, and may be an inclined chute in addition to the roller conveyor shown in the drawing.
Is placed on a fixed position of an elevating table 9 provided below the correction hole 3. The lifting table 9 is fixed to the upper end of push-up pusher means 10 such as an air cylinder. Further, a setting means 11 for the paper lid B is provided above the correction hole 3 with the correction hole 3 interposed therebetween. This paper lid setting means 11
As shown in FIG. 3, the paper lid B is carried in from the position of the other portion to just above the correction hole 3, and then it is lowered to make the above-mentioned flange walls 4, 5
Most of them are vacuum means having a well-known structure. For example, as shown in FIG. 3, a paper lid B which is supplied in alignment with the upper side position of the fixed frame 2 is provided.
With a rubber-like vacuum head 12, then arm 13
Is moved to carry the paper lid B directly above the correction hole 3, then the head 12 is lowered by the cylinder means, and the paper lid B is moved.
The flanges 4, 5, which are erected on the fixed frame 2 by lowering the
It is configured to be set to the external fitting state. Reference numeral 15 denotes a discharge pusher means 16 including an air cylinder or the like for discharging the paper box A covered with the paper cover B from the paper cover covered work unit 1.
Corresponding to this, the discharge passage 17 is provided at an appropriate height position at the opposite side position.

Next, the operation will be described with reference to FIGS.
The vacuum head 12 sucks the paper lid B by the vacuum head 12 and externally fits it on the flange walls 4 and 5 on the fixed frame 2 and sets it (I). On the other hand, the paper box A, which is packed with bulk goods, is sent from the packing place to just below the correction hole 3 by the sending means 8.
When it is located on the lifting table 9, the push-up pusher means 10 is activated to push up the paper box A (II) to (III). As shown in FIG. 5, this paper box A has side walls
Is swelled from the outside, but at the time of pushing up, since the upper portions of the guide skirts 6 and 7 that form the correction holes 3 are inscribed in the square holes 3'of the fixed frame 2, the correction holes 3 are formed from below. When passing upward, the swelling of the paper box A is forcibly pressed from the outside, and therefore, the correction hole 3 is pulled out upward without difficulty in a state where the paper box A is corrected to the normal outer shape of the paper box.
Further, as a result of the paper lid B being pushed up by the paper box A, the paper lid comes out upward from the flange walls 4 and 5, and the paper lid B is put on the paper box A (IV). Then, at the pushing-up end, the discharge pusher means 16 operates, and the paper box A covered with the paper lid B is pushed out from the elevating table 9 to the discharge path 17 and discharged. Thereafter, the same operation is repeated to cover the paper lid B. .

Although it has already been described that the upper edges of the flange walls 4 and 5 are slightly inwardly tilted so that the paper lid B can be easily fitted and set on the flange walls 4 and 5, in particular. Of these, if the relatively tall flange wall 5 shown in FIG. 1 is attached to the fixed frame 2 by the hinges 18 and can be rotated outward from the inclining posture, the paper lid B can be fitted more smoothly. Flange wall 5 to facilitate
Even if the inner inclination of the paper box is increased, the paper box A hits against it and rotates outward, so that it does not hinder the passage of the paper box.

〔effect〕

As will be apparent from the above detailed description, according to the present invention, a paper box packed with bulk is passed through the guide skirt and the correction hole. The upper portion of the guide skirt forming the correction hole is a fixed frame. Since it is inscribed in the required square hole provided in the, the size of the correction hole is accurately regulated and the outward deformation is prevented, so that the expansion of the side wall of the paper box due to the packed load is corrected. In such a state, the paper lid can be smoothly and surely pierced, and the crowning operation of the paper lid with respect to the paper box can be automated. Therefore, the box packing ability can be efficiently increased and the labor can be saved. Particularly, according to the present invention, since the fixed frame is not installed and moved at a fixed position, there is an effect that the entire configuration can be extremely simplified.

[Brief description of drawings]

1 to 3 show an embodiment of the present invention. FIG. 1 is a perspective view of a paper lid covering work unit, and FIGS. 2 and 3 are paper boxes and paper lids for the paper lid covering work unit. FIG. 4 is a schematic diagram showing a carrying-in configuration, and FIGS. FIG. 5 is a perspective view showing an example of a paper box and a paper lid. 3 ... Straightening hole, 4, 5 ... Flange wall, 6, 7 ... Guide skirt, 10 ... Push-up pusher means, 11 ... Paper lid setting means, A
… Paper box, B… Paper lid.

Claims (2)

[Claims] 1. A paper lid is fed from above into a square hole of a fixed frame which is slightly larger than the outer shape of a paper box, and the paper lid is erected at an upper edge of the square hole with its upper part inclined inward. While fitting on the flange wall, the paper box packed with loose loads is passed through the correction hole in the guide skirt that is installed in the downward spread with the upper part inscribed in the rim of the square hole. A method of crowning a paper lid in an automatic cartoning machine, which corrects a bulge on a side surface of a paper box and pushes the paper lid up through a straightening hole to a position where the flange wall is removed upward. 2. A square hole slightly larger than the outer shape of a paper box is provided in a fixed frame, a flange wall is erected by inclining the upper part of the upper edge of the square hole, and the upper part of the square hole is formed. A downwardly extending guide skirt, which is internally inscribed and has a straightening hole inside, is provided at the lower rim of the square hole, and a paper lid setting means for externally fitting the paper lid onto the flange wall from above is provided. A paper-lid capping device for an automatic cartoning machine, which is provided with pusher means for pushing up a paper box carried directly under the hole from inside the guide skirt through a correction hole.