JP6154844B2 - Corrugating machine for corrugated sheet - Google Patents

Description

  The present invention relates to a cardboard sheet separating apparatus in a corrugating machine in which an old-order cardboard sheet and a new-order cardboard sheet are accurately separated by changing the order of dimensions and number of sheets.

  As shown in FIGS. 5 and 6, the present applicant of the present patent application is a first suction conveyor 105, in which a corrugated machine 103 having a predetermined length fed out from a cutter device 102 in a corrugating machine is decelerated from the feeding speed. The second suction conveyor 106 is advanced in an overlapped state, and the cardboard sheet 103 of the old order by changing the order of the dimensions and the number of sheets passes through the second suction conveyor 106, and at the same time, the second suction conveyor 106 is accelerated and the suction device 108 We developed a cardboard sheet separation device that separates the old-order cardboard sheet 103 from the new-order cardboard sheet 103 by increasing the suction power, decelerating the first suction conveyor 105 and increasing the suction power of the suction device 108 (special No. 3,612,482).

  In the cardboard sheet separating apparatus, as shown in FIG. 6A, after the cardboard sheet 103 of the old order starts moving on the second suction conveyor 106 toward the next carry-out conveyor 104 at a high speed, the suction apparatus 108 However, since the suction force does not become zero instantaneously, as shown in FIGS. 6-2 and 6-3, the new-order cardboard sheet 103 is conveyed together with the old-order cardboard sheet 103. There was a thing.

  In order to solve the above-described problem, when the timing of stopping the suction device 108 is advanced, the old-order cardboard sheet as shown in FIG. A part of 103 may remain on the cardboard sheet 103 side of the new order.

Japanese Patent No. 3612482

  The present invention relates to a cardboard sheet separating apparatus in a corrugating machine, and an object thereof is to facilitate transshipment work in a stacker by separating cardboard sheets sent out from a conveyor in an overlapping state by changing the order.

In order to achieve the above object, the invention of claim 1 is provided between a conveyor for corrugated sheet cut to a predetermined length by a cutter device in a corrugating machine and an unloading conveyor for feeding the corrugated sheet to a stacker. , disposed and a second suction conveyor of the first suction conveyor and the lower stream side of the upper stream side to transport the corrugated cardboard sheets in an overlapping state, the elevation driving device provided in the carry-end of the second suction conveyor, by order change When the rear end of the cardboard sheet at the end of the old order moves from the first suction conveyor to the second suction conveyor, the second suction conveyor is accelerated and a suction force is applied to the cardboard sheet of the old order so that the first suction Decelerate the conveyor and create suction on the new cardboard sheet It is allowed, and and by lowering the loading end of the second suction conveyor by the lift drive unit, configured to disconnect the cardboard sheet of the new order from the cardboard sheet of the old order.

  In the corrugating machine for corrugating machine according to claim 1, the corrugated cardboard sheet cutting device is a first corrugated cardboard sheet cut to a predetermined length by a cutter device, rotating from the transfer conveyor at a lower speed than the transfer conveyor, and the suction is activated. Moves to the suction conveyor, becomes an overlapped state, rotates at the same speed as the first suction conveyor and moves to the second suction conveyor where the suction is operating, and continues from the carry-out conveyor to the stacker while maintaining the overlapped state And sent out.

When the last corrugated sheet of the old order due to the change of order of dimensions or number of sheets reaches between the first suction conveyor and the second suction conveyor, if the first suction conveyor is further lowered, the first effect is combined with the suction effect. The cardboard sheet on one suction conveyor, that is, a new-order cardboard sheet, is in a more dense overlapping state and travels at a low speed. At the same time, when the carry-in side of the second suction conveyor is lowered by an elevating drive device such as an air cylinder and the speed of the second suction conveyor and the downstream conveyor (the carry-out conveyor) is increased, the cardboard sheet on the second suction conveyor That is, the cardboard sheets of the old order are increased in traveling speed in an overlapped state, separated from the cardboard sheets of the new order, and sequentially fed out to the stacker.

  Even if the cardboard sheet of the new order may overlap the last cardboard sheet of the old order traveling on the second suction conveyor where the carry-in side is lowered due to insufficient separation due to the above order change, both sheet surfaces Therefore, a gap is inevitably generated, and a gap is formed between the lower surface of the new-order cardboard sheet and the second suction conveyor, so that the suction force of the suction device in the second suction conveyor does not act. As a result, the new-order cardboard sheet is not sent together with the old-order cardboard sheet by the second suction conveyor. Therefore, the cardboard sheet of the old order and the cardboard sheet of the new order are accurately separated.

  The present invention lowers the carry-in end of the second suction conveyor in addition to the speed difference between the first suction conveyor and the second suction conveyor that separates the cardboard sheets in an overlapped state, and the difference in suction force by the suction device. Even if the cardboard sheet of the new order may overlap on the cardboard sheet of the old order, the old cardboard sheet of the old order is surely separated from the cardboard sheet of the new order, and the old and new cardboard sheets due to the order change are kept at a predetermined interval. Can be fed continuously into the stacker.

It is the schematic which shows a part of corrugating machine provided with the cutting device of the corrugated cardboard sheet concerning the present invention. 1 is a plan view of a cardboard sheet separating apparatus according to the present invention. It is explanatory drawing of the cut-off state of the cardboard sheet | seat separation apparatus which concerns on this invention. It is an AA expanded sectional view in FIG. It is the schematic of a conventional apparatus. It is explanatory drawing of a separation state same as the above.

  Hereinafter, an embodiment of a cardboard sheet cutting device in a corrugating machine according to the present invention will be described in detail with reference to FIGS.

  As shown in FIG. 1, reference numeral 1 is a conveyer for a corrugated cardboard sheet 3 cut to a predetermined length by a cutter device 2 in a corrugating machine, and reference numeral 4 is a cardboard sheet 3 that is used as a stacker (not shown). It is a carry-out conveyor for discharging.

  Reference numerals 5 and 6 denote a first suction conveyor and a second suction conveyor installed between the conveyor 1 and the conveyor 4, respectively. As shown in FIG. The intake port 9 is opened. As with the conventional apparatus, an elevating air cylinder 11 for lowering the carry-in end of the first suction conveyor 5 is installed at the carry-in end of the frame 10 that supports the first and second suction conveyors 5 and 6. doing.

As shown in FIGS. 2 and 4, the roller shaft 12 on the carry-out side of the second suction conveyor 6 is supported by the frame 10, and the roller shaft 13 on the carry-in side rotates the front end ( downstream end ) with respect to the roller shaft 12. It is supported at the rear end ( upstream end ) of the swing plate 14 that is freely connected. Elevating and lowering the carry-in end of the second suction conveyor 6 between a bent piece 14a projecting downward at the rear end ( upstream side ) of the swing plate 14 and an arm 10a projecting downward from the frame 10 A driving air cylinder 15 is provided.

  In FIG. 2, reference numeral 16 denotes a driving motor for the first suction conveyor 5, reference numeral 17 denotes a driving motor for the second suction conveyor 6, and reference numeral 18 denotes a sheet disposed on the first and second suction conveyors 5, 6. Brake device.

  The conveyors 1, 4, 5, 6, the lifting air cylinders 11, 15, the suction device 8, and the seat brake device 18 are all operated by electrical signals. Reference numeral 19 denotes a passage detection sensor for the corrugated cardboard sheet 3, and reference numeral 20 denotes a rotating peripheral speed meter for the first and second suction conveyors 5 and 6.

  In the above embodiment, the corrugated cardboard sheet 3 cut to a length of 2 m by the cutter device 2 is transferred from the conveyor 1 that travels at 300 m / min as shown in FIGS. The forward spring and speed are controlled by the presser spring 18a, sent to the first suction conveyor 5 running at a speed of 60 m / min, and sucked onto the multi-strip belt 7 by the suction device 8 to be overlapped. It is continuously transferred to the second suction conveyor 6 that travels at a constant speed, and is sucked onto the multi-strip belt 7 by the suction device 8 and travels at a speed of 60 m / min while maintaining an overlapped state. It moves to the carry-out conveyor 4 and is continuously fed into the stacker.

  The leading end of the first cardboard sheet 3 of the new order due to the order change such as the length is moved from the conveyor 1 to the first suction conveyor 5, and the rear end of the last corrugated sheet 3 of the old order is shown in FIG. As described above, when the first suction conveyor 5 moves to the second suction conveyor 6, the first suction conveyor 6 has a speed of 150 m / min. 5 is shifted to a speed of 6 m / min or less, and at the same time, the lifting / lowering air cylinder 15 is operated. As shown by a chain line in FIG. 4, the second suction conveyor 6 is lowered on the carry-in side with the roller shaft 12 on the carry-out side as a fulcrum. Tilt to.

  As a result, a gap S is formed between the upper surface of the last cardboard sheet 3 of the old order and the lower surface of the first cardboard sheet 3 of the new order. Further, as shown in FIG. Until the sheet 3 is separated from the rear end of the last cardboard sheet 3 of the old order, the sheet 3 is kept away from the second suction conveyor 6 and is affected by the rotational speed of the conveyor 6 and the suction force of the suction. Therefore, the cardboard sheet 3 of the new order is surely separated from the cardboard sheet 3 of the old order.

  When the first suction conveyor 5 is slowed down due to the order change, the overlap of the cardboard sheets 3 on the first suction conveyor 5 becomes a precise overlap state, and the feeding of the cardboard sheets 3 from the transport conveyor 1 is disturbed. Therefore, as in the conventional apparatus shown in FIGS. 5 and 6, the rear end of the frame 10 is lowered by the lift cylinder 11 and the carry-in end of the first suction conveyor 5 is lowered, whereby the first suction conveyor 5 is lowered. The continuous transfer of the corrugated cardboard sheet 3 is intended.

DESCRIPTION OF SYMBOLS 1 Conveyor 2 Cutter device 3 Corrugated cardboard sheet 4 Unloading conveyor 5 1st suction conveyor 6 2nd suction conveyor 7 Multi-strip belt 8 Suction device 9 Intake port 10 Frame 11 Lifting drive air cylinder 12 Roller shaft 13 Roller shaft 14 Oscillating plate 15 Lifting air cylinder

Claims (1)

A first suction on the upstream side for transferring the cardboard sheets in an overlap state between a conveyor for conveying the cardboard sheets cut to a predetermined length by a cutter device in the corrugating machine and a carry-out conveyor for feeding the cardboard sheets to the stacker A conveyor and a second suction conveyor on the downstream side are arranged, and an elevating drive device is provided at the carry-in end of the second suction conveyor. By changing the order, the rear end of the cardboard sheet at the end of the old order is second from the first suction conveyor. When moving to the suction conveyor, the second suction conveyor is accelerated, the suction force is applied to the old-order cardboard sheet, the first suction conveyor is decelerated, and the suction force is applied to the new-order cardboard sheet, In addition, the lifting and lowering drive device allows the second suction. By lowering the loading end of the conveyor, disconnection device of the cardboard sheet in a corrugating machine that the cardboard sheet of the new order is characterized by being configured to decouple from the cardboard sheet of the old order.

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