JPH0437760Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial field of application This invention is a paper box manufacturing process in which assembly paper that has been transferred through a flat plate punching machine and scrap removal device is stacked automatically on a stacking table. The present invention relates to a paper inserting device for automatically and efficiently inserting paper.

Conventional technology The base paper for assembly when manufacturing paper boxes is made from a base plate with the required developed shape printed on it, cut into paperboard by making cutting cuts along the outline of the shape using a flat plate punching machine, and then this paperboard is processed by a waste removal device. After cutting the sheets at the cutting slits, removing unnecessary scraps and leaving only the necessary parts, the sheets are stacked on a stacking table in predetermined numbers to be supplied to the subsequent process. It's normal.

By the way, a pin-type device has been commonly used as a scrap removal device in this case, and as shown in FIG. A paperboard is fed between a roll and a press roll, which have a number of pins for removing scraps planted in the corresponding positions, and the scraps are pierced through the pins and transferred to the roll circumferential surface, and then removed using a stripping tool. be. In addition, a device has been developed that is incorporated into a part of a flat plate punching machine and extrudes a vertical punching die with a contour corresponding to the contour of the figure from a paperboard with cutting cuts.

However, all of these had some drawbacks and were unsuitable for incorporation into automated processes.

Therefore, the present inventor developed a device in which the roll is formed into a suction roll so that suction sections with a predetermined contour appear continuously on the roll surface, and thereby the real part and waste part are separated by suction. However, as a result of further research, it was found that by using the mechanism of such a scrap removal device, it is possible to automatically and efficiently insert slip sheets when stacking the real parts separated from the scraps on an automatic stacking table. I found out what can be done.

Problems to be solved by the invention The purpose of the invention is to incorporate it into a series of processes for manufacturing paper boxes so that when the base paper sent from the scrap removal device is stacked on the stacking table, interleaving paper is added to the accumulated real parts. It is an object of the present invention to provide a device that can be inserted automatically and efficiently.

Means for Solving the Problems According to the present invention, there is provided a scrap removing device comprising an upper suction roll having a suction area on its surface corresponding to the real part and a lower suction roll having an adsorption area on its surface corresponding to the waste part. Next, a suction table consisting of a first-stage suction table and a second-stage suction table, a porous endless belt that moves along the lower surface of the suction table, and an automatic stacking table on which the separated real part is placed directly below the second-stage suction table. , and a pair of front and rear transfer belts are installed in parallel at the front and rear of the automatic stacking table for holding interleaf paper supplied from the side on a suction cup and positioning it almost horizontally directly above the automatic stacking table, When these suction cups are sucking the interleaving paper, they are held between the upper surface of the real part on which they are placed and the lower surface of the second stage suction table, but after the interleaving paper is released, they are held below the upper surface of the real part on which they are placed. The above object can be achieved by providing a mechanism that can be moved up and down so as to restore the position.

Example Embodiments of the present invention will be described with reference to the accompanying drawings.

First, the entire device of the present invention will be explained schematically.
In FIG. 1, numerals 1 and 2 are upper and lower suction rolls that form the scrap removal mechanism, and are fixed to a separate base and have openings inside a rotating cylinder of equal size and rotation at a constant speed and having a perforated plate on the circumferential surface. It is formed by providing suction and exhaust boxes 3 and 4 whose edges are positioned in sliding contact with the inner circumferential surface of this rotating cylinder, and as is clear from FIG. An adhesive film 5 is formed to form a paper pattern cut out in a shape corresponding to , and an adhesive film 6 is also 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 attached at corresponding positions that match each other as the roll rotates.

The required paperboard to be scraped off from the punching machine 7 is transferred via an appropriate delivery mechanism 8 to a gripping claw attached to an endless chain 9 that moves in synchronization with the circumferential speed of the upper and lower suction rolls 1 and 2. 10 with both side edges in their mouths, and are sent sequentially over the guide table 11 and inserted between the upper and lower suction rolls 1 and 2, and each intake and exhaust box 3,
The solid part of the paperboard is separated and suctioned to the upper suction roll 1 and the waste part to the lower suction roll 2 via the four opposite suction sections 3a, 4a. The suctioned real part is separated from the upper suction roll 1 via the exhaust section 3b of the suction/exhaust box 3, and is transferred to the perforated endless belt 13, which moves along the lower surface of the suction table 12, which is separately provided so as to be movable up and down. A slip sheet 16 is adsorbed to the lower surface side and sent between a guide plate 14 made of a flexible sheet and above an automatic stacking table 15 at fixed height intervals to prevent the load from collapsing.
are collected by sandwiching them. On the other hand, the scrap part is gripping claw 10
While being held in its mouth, the scraps rotate below the lower suction roll 2, fall through the exhaust compartment 4b of the intake and exhaust box 4, and are collected in the scrap box car 17.

By the way, as mentioned above, the upper and lower suction rolls 1,
Of the paperboard separated into a real part and waste part through the paperboard 2, the real part is attracted to the lower surface of the endless porous belt 13 that moves along the lower surface of the suction table 12 and is sent above the automatic stacking table 15. This porous endless belt 13
The suction table 12 provided above is the first stage suction table 1
8 and a second stage suction table 19, which are connected to each other so as to be bendable. In this case, the second stage suction table 19 is suspended from the base via an eccentric mechanism, and the tip of the first stage suction table 18 is pivotally supported by the base via a shaft. For this reason, the second stage suction table 19 repeatedly moves up and down via an eccentric mechanism that rotates continuously as the porous endless belt 13 moves, and as a result, when descending,
The entire suction table 12 is bent as a pivot point at the tip of the first stage suction table.

The bending operation of each suction table 18, 19 is performed in conjunction with the movement of the upper and lower suction rolls 1, 2 and the endless porous belt 13 via an appropriate control mechanism. When the upper and lower suction rolls 1 and 2 start rotating when they rise by about 1/3, and after the second stage suction table 19 reaches its upper limit, it starts to descend and rises by about 2/3.
3, the upper and lower suction rolls 1 and 2 are stopped when the upper and lower suction rolls 1 and 2 are lowered, and the porous endless belt 13 also moves intermittently in accordance with the driving of the upper and lower suction rolls 1 and 2, and further operates in synchronization with the insertion of interleaf sheets. As a result, the real part that is attracted to the lower surface of the endless porous belt 13 and sent on the guide plate 14 is guided in accordance with the refraction of each suction table 18, 19, and is reliably advanced without falling to the automatic stacking table. 15, and when the stack reaches a certain height, an interleaf paper 16 is placed, and the stack is further advanced.

At this time, the refraction operation of the suction table and the operation of the perforated endless belt are interconnected, and the real part sucked into the suction table via the perforated endless belt is transferred to the automatic stacking table.
To do so, move the perforated endless belt that has sucked the real part a required distance until the real part is directly above the automatic stacking table, stop it at that position, and then stack the real part on top of the automatic stacking table. The second stage suction table is lowered by bending each suction table via the pivot part so that the part can be released from the suction state by an appropriate means and pressed lightly downward against the upper surface of the mounted real part. It is necessary to activate it. At this time, if the distance between the belt and the upper surface of the real parts that are stacked in an orderly manner, that is, the gap, is too narrow, the alignment of the real parts may be disturbed due to the movement of the belt. It is preferable to start after the refraction of the suction table has somewhat recovered and the second-stage suction table has risen.

In this way, the interleaf paper must be fed in synchronization with the refraction of the suction table 12, and must also be fed slightly above the top surface of the deposited layer so as not to touch the deposited real part.

To explain this interleaving paper insertion mechanism with reference to the drawings,
In FIGS. 3 and 4, 1 and 2 are upper and lower suction rolls, 15 is an automatic stacking table on which the required real parts are placed, and 1
9 is a second stage suction table, 20 is a pulley for driving the porous endless belt 13, and 21 is an automatically rising interleaf sheet stacking table, and the automatic stacking table 15 is sandwiched from the front and back on the base, each consisting of an endless belt. Transfer belt 22,2
2. Also, above the interleaving paper stacking table 21, there are interleaving paper supply members 23, 23 that extend and contract via cylinders, respectively.
are provided for each. In addition, 24 is the transfer belt 2
2, 22 are driving pulleys, 25 is a driven pulley, 26 is a suction cup fixed to each of the transfer belts 22, 22, 27 is a servo motor for driving the transfer belt, and 28 is the tip of the interleaving paper supply members 23, 23. 29 indicates a cylinder for expansion and contraction.

To explain the operation sequence of the above-mentioned interleaving paper insertion mechanism, first, the suction cups 28, 28 of the interleaving paper supply members 23, 23 in the reduced state suck the topmost sheet of interleaving paper on the interleaving paper stacking table 21. Suction cup 2 of transfer belt 22, 22
6, 26, and this paper is attached to the suction cup 26, 2.
6, and then the transfer belts 22, 22
is transported to the upper part of the real part of the sedimentary layer. This suction cup 26 is attached to the transfer belt 22 as shown in FIG.
It is attached via a cylinder 31 to an arm piece 30 that is fixed to the body, and is constantly lowered by a spring 32, but as shown in FIG. It is moved by a transfer belt 22 and is in a descending state at the same time as it is released. Transfer belt 2
2 and 22 are driven by a servo motor 27 based on an encoder 33 attached to the shaft of a pulley 20 for driving the endless porous belt 13 and a specified count signal. When this transfer is finished, the suction cup 2
6 and 26 release the interleaving paper and return to the initial position. The relationship between the upper surface of the interleaving paper and the lower surface of the second stage suction table 19 in this case will be explained with reference to FIG.
The vertical movement stroke of 3 is ₃ , and it reaches the upper limit when inserting the interleaving paper, and ₂
only located above. This ₂ is ₂ ≒ ₁ / for the vertical stroke ₁ of the second stage suction table 19
It has become 3. When the suction cup 26 returns after the transfer, the suction cup 26 is located ₄ degrees below the upper surface of the real part deposited layer. In this way, the return is performed without interfering with the inserted mount. FIG. 7 is a timing diagram showing the relationship between the vertical movement of the second-stage suction table 19 and the movement of inserting paper shown in FIG. indicates the movement of inserting a slip sheet.

Effects of the invention As described above, the present invention uses a scrap removing device in which the roll itself is formed into a suction roll instead of the conventional roll with pins, and a paper pattern is pasted to obtain a suction section with the desired outline. This paper pattern can be easily removed by cutting off a commercially available adhesive film in the same way as a seed paper using a punching machine, and can be stacked as described above. This has the advantage that it is possible to prevent the loaded real part from collapsing and to insert interleaf sheets for partitioning the number of sheets in an extremely reliable and rational manner.

[Brief explanation of the drawing]

Figure 1 is an overall side view, Figure 2 is a front view of the upper and lower suction rolls, Figure 3 is an explanatory front view of the interleaving paper insertion mechanism,
Fig. 4 is a perspective view of the same, Fig. 5 is a side cross-sectional view of the suction cup of the transfer belt, Fig. 6 is an explanatory front view showing the relationship between the upper surface of the interleaving paper and the lower surface of the suction table, and Fig. 7 is the same as that of inserting the interleaving paper. A timing chart showing the movement, and FIG. 8 is a side view showing an example of a conventional scrap removing device. 1, 2... Upper and lower suction rolls, 3, 4... Suction and exhaust box, 12... Suction stand, 13... Porous endless belt,
15... Automatic stacking stand, 16... Interleaving paper, 19... Second stage suction stand, 21... Interleaving paper stacking stand, 22... Transfer belt, 23... Interleaving paper supply member, 26, 28...
Suction cup, 27...servo motor, 29...extension cylinder, 33...encoder.

Claims (1)

[Scope of utility model registration request] In a paper box manufacturing apparatus in which a flat plate punching machine, a waste removal device, and an automatic stacking table are connected in series, the waste removal device is supported by fitting the ends of the waste removal device onto a fixed shaft, and intake and exhaust boxes 3 and 4 connected to the fixed shaft are provided inside. It is formed by upper and lower suction rolls 1 and 2 provided, and following these suction rolls 1 and 2, a suction table 12 consisting of a first stage suction table 18 and a second stage suction table 19 is formed, and a suction table 12 is formed along the lower surface of this suction table. Immediately below the moving porous endless belt 13 and the second-stage suction table 19, there are automatic stacking tables 15 on which the separated real parts are placed, and furthermore, before and after the automatic stacking table 15, there are A pair of front and rear transfer belts 2 hold the interleaved paper on suction cups 26, 26 and position it almost horizontally directly above the automatic stacking table 15.
2, 22 are arranged in parallel, and these suction cups 26, 26
When adsorbing the interleaf paper, it is held between the upper surface of the real part on which it is placed and the lower surface of the second stage suction table 19,
A paper box manufacturing device characterized by having a mechanism that can move up and down so that after the interleaving paper is released, it returns to a position below the upper surface of the real part on which it is placed.