JPS62207634A - Method of degassing board for manufacturing paper box and device used for said methdo - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a method and a method for separating and removing waste portions from paperboard in which the real portions and waste portions obtained in a punching process are not separated when manufacturing paper boxes. It is related to the equipment used for this purpose.

Conventional device paper boxes are made by forming an original plate with a required developed shape onto a paperboard having cutting cuts along the outline of the shape using a flat plate punching machine, and then cutting the paperboard with the cutting cuts through a scraping device. The paper is cut and unnecessary scraps other than the figures are removed to create a base paper for assembly consisting only of the real parts, and this base paper for assembly is assembled into a paper box by hand or using an automatic assembly device. However, this scrap removal device is generally a pin-type device that is connected to a flat plate punching machine, and as shown in Figure 6, this device has scraps on the circumference, that is, the cutting Paperboard is fed between the roll (a), which has a large number of bins for removing scraps planted in corresponding positions on the outside surrounding the cuts, and the pressure roll (b), and the scraps are pierced through the bins to remove the scraps from the roll surface. This device uses a stripping tool (c) to remove the rolls, but this device has many types of rolls depending on the developed shape, but it is necessary to change the arrangement of the bins, and it is a cumbersome process. There are inconveniences such as the need for

Additionally, a device has also been developed that is built into a part of a flat plate punching machine as a scrap removal device, and extrudes the paperboard with cutting cuts through an elevating punching die whose contour corresponds to the outline of the figure. Many types of cutting dies must be prepared depending on the developed shape, which is inefficient.

Moreover, in the conventional method, all of the debris generated between products that are continuous in the flow direction, that is, the gripping debris, the so-called window debris such as window holes and tongue insertion portions existing in the fruit part, and the debris generated around the fruit part are removed at the same time. There was a drawback that the remaining residue had to be removed by other means.

SUMMARY OF THE INVENTION The object of the present invention is to overcome the drawbacks of the conventional methods described above, to be able to immediately handle various types of paperboard with different shapes, and to eliminate all the waste that tends to occur with a simple operation. It is an object of the present invention to provide a method for removing waste from paperboard for paper box manufacturing, which can simultaneously remove parts of paperboard, and an apparatus suitable for use therein.

Means for Solving the Problems The inventors conducted intensive research to develop a method for easily removing scraps from paperboard for paper box manufacturing processed using an automatic flat plate punching machine. We found that instead of piercing the roll surface with a bottle and removing it from the fruit part, the purpose could be achieved by adsorbing the fruit part and waste part under reduced pressure to separate suction rolls and peeling them off. Based on this, this invention was made.

In other words, the present invention uses a pair of suction rolls that are capable of suctioning only the real parts and suction rolls that are capable of suctioning only the waste parts of paperboard for manufacturing paper boxes that has been punched into a desired shape and whose real parts and waste parts have not yet been separated. A method for removing scraps from paperboard for paper box manufacturing, which is characterized by passing the paperboard through a roll opening to separate the scraps from the real parts, and a device suitable for carrying out this method, that is, a vertically fixed shaft provided on a base. , a pair of upper and lower suction rolls that are rotatably horizontally suspended with their perforated peripheral surfaces close to each other and each having an intake and exhaust chamber connected to the fixed shaft inside, and an endless chain provided between these suction rolls. A mechanism that continuously supplies punched paperboard through the tassel claws, and a real part and waste part that are separated from the paperboard according to the shape of the paper pattern pasted in advance on the circumferential surface of these suction rolls. A paperboard waste removal device for manufacturing paper boxes, comprising a mechanism for suctioning and transferring the real part to a stacking table, and configured such that upper and lower suction rolls and each of the mechanisms operate in conjunction with each other. It provides:

Example Next, the present invention will be described in detail with reference to the accompanying drawings.

First, before explaining the suction roll, which is the main part of this invention, the entire device will be explained schematically.
These are the upper and lower suction rolls that form the scrap removal mechanism, and as mentioned above, they are inside a large rotating cylinder with a perforated plate on the circumferential surface and are rotated at a constant speed, and are separately fixed to a base and the opening edge is rotated by this rotation. The upper suction roll 1 is formed with intake and exhaust chambers 3 and 4 located in sliding contact with the inner peripheral surface of the cylinder, and as is clear from FIG. An adhesive film 5 that forms a paper pattern cut out in the same way, and an adhesive film 6 cut out in a shape corresponding to the actual part of the paperboard on the outer peripheral surface of the lower suction roll 2 are placed in corresponding positions that match each other as the rolls rotate. It is pasted.

The required paperboard from which scraps should be removed is discharged from the punching machine 7.
Appropriate receivers are separately connected to upper and lower suction rolls 1 via a transfer mechanism 8.
, 2, the guide table 1 is gripped by grip claws 10 attached to an endless chain 9 that moves in synchronization with the circumferential speed of the guide table 1.
The real part of the paperboard is sent sequentially over the upper suction roller 1 and sandwiched between the upper and lower suction rolls 1.2, and the real part of the paperboard is transferred to the upper suction roller 1 through the opposing suction sections 3a and 4a of each suction and exhaust chamber 3.4. The parts are separated and suctioned by the lower suction roller 2. Then, the sucked real part is separated from the upper suction roller 1 through the exhaust section 3b of the intake and exhaust chamber 3, and is moved along the lower surface of the suction table 12, which is separately provided so as to be movable up and down.
The items are attracted to the lower surface side of the item, and sent between a guide plate 14 made of a flexible sheet and above an automatic stacking table 15, where they are stacked at regular intervals with interleaf sheets 16 to prevent the items from shifting. On the other hand, the waste part is held in the gripping claw 10 by the lower suction roller 2.
The air flows downward through the exhaust section 4b of the intake and exhaust chamber 4 and falls (and is collected on the hour wheel 17).

Next, the upper and lower suction rolls 1 and 2 will be explained with reference to FIGS. 3, 4, and 5. As is clear from FIG. ,
It is rotatably supported via a bearing on a fixed shaft 18.19 consisting of a hollow shaft supported on a base, and via a sprocket wheel 20 attached to one side of the upper suction roll 1 (the right side in the figure). It is rotated by a drive mechanism (not shown).

Sprocket wheels 21 and 22 are provided on the other side (left side in the figure) of the upper and lower suction rolls 1.2, respectively, and as shown in FIG.
1.22 and a sprocket wheel connected to the drive pulley of the endless perforated belt 13 (see Figure 1). It is connected to the driving sprocket wheel of the endless chain 9 (see Fig. 1) for paperboard supply through the
As a result, the upper and lower suction rolls 1 and 2, the endless porous belt 13
, the endless chains 9 all move in conjunction with each other at the same circumferential speed.

In the upper and lower suction rolls 1 and 2, as described above, the suction and exhaust chambers 3 and 4 are fixed to the fixed shafts 18 and 19, respectively, as shown in FIG. Suction roll 1
The intake and exhaust chamber 3 of the lower suction roll 2 is divided horizontally into an intake section 3a and an exhaust section 3b, and the intake and exhaust chamber 4 of the lower suction roll 2 is divided vertically into an intake section 4a and an exhaust section 4b,
Each compartment is piped through a fixed shaft 18.19 by means of an external vacuum pump, pressurized air! (not shown).

In this way, as explained with reference to FIG. 1, the paperboard is separated into a real part and a waste part through the upper and lower suction rolls 1 and 2.

In carrying out the present invention, it is advantageous to adhere an adhesive film of a desired shape to a suction roll by the method described below.

That is, an adhesive film with gold paper adhered to the back side is punched out with the adhesive side facing up, leaving only the mount on the back side, in the same way as paperboard is punched out using a drive. Next, this is placed on the guide stand 11 in front of the suction roll pair, and only the upper suction roll 1 is depressurized, and the suction rolls 1.2 are rotated while removing the cover paper from the scraps of the adhesive film, and the scraps are removed. A corresponding adhesive film is attached to the circumferential surface of the upper suction roll 1, and the other parts are left to fall. In this way, after covering the porous circumferential surface corresponding to the waste portion, the remaining portion of the paperboard dimension cut out from the standard length adhesive film as desired is used to cover the left and right portions of the porous circumferential surface and the paper tail portion I! - Attach so as to cover it.

Ikegata: Regarding the lower suction roll 2, cut the adhesive film to the same size as the paperboard, punch it out with the adhesive side facing down in the same way as when paperboard is punched out using a drive, and then place it on the guide table 11, and then place it on the guide table 11. Cover the entire body with a magnetic sheet, leaving 2 to 3 cit at the tip of the section, reduce the pressure only on the lower suction roll 2, rotate the suction roll 1.2 with a drive, and apply the adhesive film to the lower suction roll 2 by 20 to 30 cm. Stop the rotation at the point where it is wrapped to a certain degree, and gently peel off the tip of the real part from the suction roll 2 to remove about 2 to 3 cm of the cover paper.
This part is attached to the surface of the suction roll, and then the magnetic sheet is removed, the entire cover paper of the real part is removed, and the entire real part is stuck to the lower suction roll 2. Next, in the same manner as described above, the remaining portions of the paperboard cut out from the standard length adhesive film are attached to the left and right portions of the circumferential surface of the porous hole and the tail portion of the paper.

In this way, a pair of suction rolls on which a paper pattern corresponding to the desired shape is pasted is obtained.

Effects of the Invention With the above-described configuration, the present invention has a paper pattern having the same shape as the waste portion and the real portion of the paperboard pasted on the upper and lower suction rolls 1.2 using commercially available adhesive films 5, 6, etc., as described above. Since it is only necessary to form intake and exhaust surfaces with the required contours on the roll surface, it is possible to change the pin 7 arrangement depending on the type of paperboard as in the conventional case, or to use the entire roll or a sheet wrapped around the roll surface. There is no need to replace it, and it is possible to sufficiently remove the window hole waste, and after pasting, it is easy to add or remove parts if necessary, so the shape This method is also useful when producing paper boxes that are slightly different in size.

B. As mentioned above, the present invention can achieve the desired purpose in more detail than conventional devices,
Moreover, a pressure of 300 JIJI/f1g or less is sufficient for intake and exhaust, and therefore there are many advantages such as easier automatic operation.

[Brief explanation of drawings]

1 to 5 show an embodiment of the present invention. FIG. 1 is an overall side view, FIG. 2 is an oblique view of the upper and lower suction rolls, and FIG.
4 is a front sectional view of the same, FIG. 5 is a side sectional view of the same, and FIG. 6 is a side view showing an example of a conventional device. 1... Upper suction roll 2... Lower suction roll 3
．． 4... Intake and exhaust chamber 5, 6... Adhesive film 9
...Endless chain 10...Gagami claw 12...
Suction stand 13... Porous endless belt 15...
Automatic stacking table

Claims (1)

[Scope of Claims] 1. A paper box manufacturing paperboard that has been punched into a desired shape and whose real parts and waste parts have not yet been separated, is composed of a suction roll capable of adsorbing only the real parts and a suction roll capable of adsorbing only the waste parts. A method for removing waste from paperboard for manufacturing paper boxes, characterized by passing the waste between a pair of rolls and separating the waste from the real part. 2. A pair of upper and lower suction rolls that are rotatably suspended horizontally on the upper and lower fixed shafts provided on the base with their perforated peripheral surfaces close to each other, and that have internal suction and exhaust chambers connected to the fixed shaft; A mechanism that continuously supplies punched paperboard between the suction rolls via grips provided on an endless chain, and a mechanism that continuously supplies punched paperboard between the suction rolls, and a mechanism that continuously supplies punched paperboard between the suction rolls. It is characterized by comprising a mechanism that adsorbs and transfers the real part of the separated real part and waste part to a stacking table, and is configured such that the upper and lower suction rolls and each of the above-mentioned mechanisms operate in conjunction with each other. Paperboard waste removal device for paper box manufacturing.