JPH11198256A - Single-faced corrugated board manufacturing device with easily replaceable corrugation forming roll - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a single-faced corrugated board manufacturing device for forming single-faced corrugated boards of different flutes by forming upper and lower step rolls of different flute forming dimensions and their supporting sections into units, setting units removably on important sites of a machine body of a single-faced corrugated board manufacturing device and replacing and setting the units formed of upper and lower step rollers and their supporting sections for forming different flutes provided preliminarily. SOLUTION: A step forming roll unit 20 is of the constitution of separating from and fitting above a fitting section 11 formed on a machine body frame in the state that upper and lower step rolls 22, (23) disposed on the central section of the machine body frame 10 in a single-faced corrugated board manufacturing device for manufacturing single-faced corrugated boards can be rotated regularly by receiving the power from a driving section, and a stock space 16, in which a plurality of corrugated boards of different flute dimensions is formed on the upper and lower step rolls 22, (23) of the step forming roll 20 can be disposed, is formed on the machine body upper section position, and a lifting and lowering transfer means 30 of the step forming roll unit 20 is provided on the upper side of the stock space 16.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a single-sided corrugated cardboard manufacturing apparatus for producing a single-sided corrugated cardboard sheet. The present invention relates to a single-sided corrugated cardboard manufacturing apparatus which can be easily exchanged.

[0002]

2. Description of the Related Art Conventionally, in order to manufacture a single-sided corrugated cardboard, for example, as shown in FIG. 5, an upper roll 101 and a lower roll 102 each having a corrugated step formed on a circumferential surface are formed at the step. Core paper (step forming paper) 2 which is arranged on a frame (not shown) while maintaining a positional relationship so as to mesh with each other and rotate, and which is fed through a meshing portion between these upper roll 101 and lower roll 102. A step (flute) is formed at the bottom. The adhesive is applied to the corrugated top surface of the obtained step forming paper 2a by the gluing roll 103 while moving along the peripheral surface of the lower step roll 102. On the other hand, a press roll 104 is
The liner 3 supplied from another direction is combined with the step forming paper 2a in the portion of the structure in which the step forming paper 2 is pressed, and the corrugated step of the step forming paper 2a is formed on the liner 3 by the pressing by the press roll 104. The single-faced cardboard 1 is laminated.

[0003] The single-faced cardboard 1 manufactured in this manner
Are divided into five types, A flute, B flute, C flute, D flute, and E flute, depending on the height of the step given to the core paper 2 and the standard number of peaks per 30 cm. Is dependent on the step shape of the upper and lower rolls.

[0004] In view of the above, when producing single-sided corrugated cardboard, in order to produce a single-sided corrugated cardboard having a different flute, the upper and lower both-stage rolls in the corrugated cardboard manufacturing apparatus are exchanged with those corresponding to the required flute. Have been to be.

[0005]

However, in manufacturing a single-faced corrugated cardboard having different flutes as described above, in order to replace the upper and lower corrugated rolls, the supporting portions of the corrugated rolls must be disassembled and prepared in advance. The required required stage rolls are to be incorporated, and a very troublesome operation is required. In particular, the rearrangement of this step roll,
It is important to incorporate these rolls with correct parallelism, and for that purpose, it is necessary to make fine adjustments on the conditions of the core paper used, such as the intermeshing gap between the upper and lower rolls after assembly, and Since both upper and lower rolls need to be reconnected with a steam pipe or the like for heating, there are many problems such as troublesome operation.

Also, the relationship between the step rolls and the gluing rolls is also subject to adjustment, which requires a lot of trouble as a whole, and the work involved in replacing the step rolls takes a long time, resulting in an increase in the work cost. become. Therefore, in the case of producing various types of single-faced cardboard with different flutes in small quantities, there is a problem that the product cost is increased.

In order to solve such a problem, the present invention is to unitize the upper and lower rolls having different flute forming dimensions and their support parts, and to connect the upper and lower rolls and their support parts to a single-faced corrugated cardboard manufacturing apparatus. Single-sided corrugated cardboard with different flutes that is configured to be removably attachable to key points in the fuselage, and that a unit consisting of upper and lower two-stage rolls with different flutes prepared in advance and its supporting portion is replaced and mounted in the key points in the fuselage. It is an object of the present invention to provide a single-sided corrugated cardboard manufacturing apparatus which can easily form a corrugated cardboard.

[0008]

SUMMARY OF THE INVENTION In order to achieve the above object, a single-faced corrugated cardboard manufacturing apparatus according to the present invention, in which a step forming roll can be easily replaced, is provided with a step forming step which is formed into a corrugated shape by a pair of step rolls. In a single-sided corrugated cardboard manufacturing apparatus for producing a single-sided corrugated cardboard by laminating a liner on the top of the paper, the upper and lower two-stage rolls arranged in the center of the body are capable of rotating steadily under the power from the drive unit. It is configured as a step forming roll unit that can be detached and received from the frame at the top, and a stock space is provided at the upper part of the fuselage where the upper and lower steps of the step forming roll unit can arrange a plurality of rolls having different flute forming dimensions. A step of moving the step-forming roll unit up and down above the stock space. .

According to the present invention, the size of the step (flute) of the step forming paper formed by the upper and lower step rolls is set to a required value, and the unit structure is set in a usable state so as to form such a step. The required number of roll units is prepared, and is configured so that it can be suspended from the upper part of the fuselage frame or removed from the upper part of the fuselage frame so that it can be attached to and detached from the corrugated roll mounting point of the fuselage in the single-sided cardboard manufacturing apparatus. A step forming roll unit corresponding to a required flute for paper can be selectively replaced and incorporated. Therefore, when replacing the necessary step forming rolls, it is not necessary to remove, as well as assemble and adjust the combination with the drive unit and other peripheral devices, so that the work can be switched quickly, and the workability can be quickly changed. The effect of this is that the effect can be significantly improved.

Further, as described above, since the step forming roll is unitized, it is possible to independently perform maintenance on the supporting bearing portion and peripheral accessory devices as well as the step roll itself. In addition, there is an effect that maintenance and inspection can be performed at the time of non-use so as to be ready for the next use.

[0011] The step forming roll unit includes a frame having bearing portions for supporting upper and lower rolls at predetermined intervals on the left and right, a plurality of connecting members for fixedly connecting the frames, and each of the step rolls. And a gear train receiving the power from the drive unit by rotating the upper and lower rolls in synchronism with each other, and a supporting member suspended by an elevating / transferring means at the top. In this way, when producing single-faced cardboard with different flute dimensions for the upper and lower step forming rolls, all the step forming sections for the step forming paper are unitized, removed from the machine frame, and replaced with the step forming roll unit prepared in advance. The work can be performed without any problem even if it is attached by mounting, and the operational effect that the workability can be improved is exhibited.

Further, in the present invention, it is preferable that a stock space is provided on the upper part of the machine frame, at the front, rear, left and right except for the insertion position of the step forming roll unit, where the step forming roll unit can be placed and stored. In this way, a plurality of step forming roll units having different flutes can be made to stand by directly in the fuselage, and no special storage space is required. It has an effect.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a specific embodiment of a single-sided corrugated cardboard manufacturing apparatus according to the present invention, in which a step forming roll can be easily replaced, will be described with reference to the drawings.

FIG. 1 shows an embodiment of an apparatus for manufacturing a single-faced corrugated cardboard according to the present invention, in which a step forming roll can be easily replaced. In this figure, a rectangular cut portion having a required height is formed in the center of a pair of body frames 10 disposed at a required interval in a vertical direction and below a top surface, and the cut portion is formed as a step. The mounting unit 11 of the roll unit 20 is used. A heat roll 13 is disposed below the mounting portion 11 of the step forming roll unit 20, and a gluing roll 14a is disposed obliquely in front of the position of the heat roll 13.

As shown in FIG. 2, the step forming roll unit 20 can be inserted into and removed from the mounting portion 11 of the step forming roll unit 20 provided on the body frame 10 from above. A pair of left and right step-forming roll support frames 21 to be formed, and upper and lower steps formed on both the left and right step-forming roll support frames 21 so that the shafts at both ends are supported and corrugated step-forming uneven strips are formed on the peripheral surface at a required pitch. The roll 22 and the lower roll 23 are arranged so as to be rotatable up and down by engaging their step-forming uneven strips. The pair of left and right step forming roll support frames 21 are positioned at a position where the movement of the core paper (step forming paper) 2 and the liner 3 to be laminated is not hindered by the upper roll 22 and the lower roll 23. Are connected so as not to cause twisting or the like by a horizontal member 24 and are integrally configured. The pair of left and right step forming roll support frames 2
The upper roll 22 and the lower roll 23 supported by 1 are provided with drive gears 26, 26 '(see FIG. 3) at one shaft end so as to be able to rotate and synchronize with each other, and have steam inside. And a rotary joint (not shown) for steam supply so that the roll surface is maintained at a required temperature. The lower roll 23 is
When it is inserted and mounted in the mounting section 11 of the step forming roll unit 20 in the body frame 10, it is positioned so as to maintain a predetermined contact relationship with the heat roll 14 provided on the body frame 10 side.

The upper roll 22 and the lower roll 23 of the step forming roll unit 20 have a corrugated step forming uneven strip formed on the outer peripheral surface thereof. A plurality of types according to the conditions of the corrugated cardboards, each of which is a pair, and dedicated step forming roll units 20, 20A, 20B
It is prepared to be used as ... Therefore, it is desirable that the outer diameters of both upper and lower rolls 22 and 23 to be incorporated are almost the same.

Further, the support relationship between the step forming roll unit 20 and the mounting portion 11 of the step forming roll unit 20 in the machine frame 10 is such that the step forming roll support frame 21 can be slidably engaged with the step forming roll support frame 21 on the machine frame 10 side. , And each stage forming roll unit 2
It is desirable to keep the side surfaces on the side of the 0 (which collectively refers to different step forming roll units of each flute) in a uniform shape in order to maintain compatibility. As means of this sliding engagement,
For example, it is preferable to use a bearing plate made of a heat-resistant synthetic resin or an oil-impregnated alloy (a sintered alloy impregnated with a lubricant).

When the step forming roll unit 20 is mounted on the mounting section 11 of the step forming roll unit of the body frame 10, the step forming roll unit 20 is stepped by the liner 3 supplied along the heat roll 13 and the upper and lower step rolls 22 and 23. The press roll 15 for adjusting the adhesive strength when the step forming paper 2a is bonded to the step forming paper 2a becomes obstructive to the elevation of the step forming roll unit 20 when the step forming roll unit 20 is replaced. Although not shown in the drawings, the structure is supported by the body frame 10 so as to be movable in advance. It is preferable that the presser roll 15 is provided with an adjustment mechanism (not shown) that simultaneously keeps the contact pressure between the liner 3 and the corrugated top surface of the step forming paper 2a optimal. With this arrangement, after the step forming roll unit 20 is replaced, the adhesive state between the corrugated top surface of the step forming paper 2a and the liner 3 that has been stepped by the step forming rolls 22 and 23 can be easily adjusted, thereby improving workability. It is more effective to do so.

Next, as shown in FIG. 1 and FIG. 3, as the lifting / lowering transfer means 30 of the step forming roll unit 20, at least the left and right body frames 10 A pair of left and right guide beams 31 are supported and disposed at intervals wider than the installation interval, and a trolley 32 that can travel along a guide portion formed on the left and right guide beams 31 is provided. At least two suspension devices 35 are arranged on a trolley beam 33 connected in a direction perpendicular to the guide beam 31 at positions corresponding to the suspension rings 25, 25 attached to the tops of the support frames 21, 21 in the step forming roll unit 20. The hanging ropes 37, 37 around the hanging pulleys 36, 36 provided in these hanging devices 35, respectively, suspend the respective suspensions. With elevating the stage forming roll unit 20 in equilibrium through 25 are adapted to be moved to the required position.

The embodiment shown in FIGS. 1 and 3 as the elevating / transferring means 30 is a mounting portion for the step forming roll unit 20 of the body frame 10 from above the stock space 16 above the body frame 10 along the guide beam 31. In order to move the required step forming roll unit 20 to the position 11, the operation is performed using the fluid pressure cylinder 38 and the fluid pressure cylinder 39 for elevating and lowering. In this method, the movement stroke between the stock position and the mounting position is accurately determined. On the other hand, if three or more sets of step forming roll units 20 having different flute dimensions are used, the operation cannot be performed. Therefore,
In such a case, for example, a low-lift hoist (not shown) is attached to the trolley beam 33 as the suspension device 35, and at least two suspension devices are connected to one side of the fuselage by a transverse trolley (not shown). The trolley beam 3 is long enough to move the step forming roll unit 20 to the side of the trolley beam 3.
3 (indicated by a two-dot chain line) so that the step forming roll unit 20 suspended by the hoist attached to the traversing trolley is placed on the stock space 16 on the body frame 10 and is not used.
Can be moved to the rear position by exchanging with the outside, or the required step forming roll unit 20 can be mounted on or removed from the mounting portion 11 of the body frame 10 by the reverse operation.

Further, in the present embodiment, a glue roll 14a for adhering an adhesive to the corrugated top end of the step-forming paper 2a that has been stepped along the surface of the lower roll 23 in the step-forming roll unit 20, and a glue supply tank 14b thereof In the gluing unit 14 composed of the above, trouble occurs when the above-described step forming roll unit 20 is mounted on or removed from the mounting portion 11. For this purpose, the gluing unit 14 is guided by the guide means 17 so as to be able to move in the front-rear direction at the lower front position between the body frames 10, and is movable from a fixed position to a retracted position (indicated by a two-dot chain line). .

A step forming roll (upper roll 22 and lower roll 2)
When the sheet formed on the single-faced corrugated cardboard 1 by laminating the liner 3 on the corrugated paper 2a that has been corrugated in step 3) is transferred to the next step, the laminating force is stabilized and a constant tension is maintained. The suction conveyor 40 is arranged upward at a required angle. In the suction conveyor 40, endless belts 41, 42 stretched between conveyor rollers 43, 43 arranged at required intervals in upper and lower two stages, are fed upward with a single-sided corrugated cardboard 1 after bonding in a required section. Is to do so. A plurality of conveyor belts 41, 42 of this suction conveyor 40 having an appropriate width are wound around the conveyor rolls 43, 43 at required intervals, and are driven synchronously.

In the single-sided corrugated cardboard apparatus constructed as above, the corrugated paper 2 is guided by the upper right guide roll 5 and the tension roll 6 in FIG. And the lower roll 23 is fed into the meshing portion of the step-forming uneven strip, and the upper roll 22 and the lower roll 23 form the required corrugated step by step rolling. The step forming paper 2 a formed by step forming is held as it is by the concave and convex portions of the lower roll 23, and is transferred to the bonding section A with the rotation of the roll. In this transition section, the adhesive is applied to the top end of each step mountain formed by the gluing roll 14a.

The liner 3 supplied with the required tension from the other base paper supply unit (not shown) is supplied to the step forming paper 2a to which the adhesive is applied and moves to the bonding unit A from the other.
Is preheated by the preheat rolls 8 and 8 'so that the payout speed is set and the tension is maintained to reach a required temperature. The liner 3, which is supplied by being preheated by the preheat rolls 8 and 8 ′, is further heated to a predetermined temperature by the heat roll 13 and sent to the bonding section A along the peripheral surface of the heat roll 13. The step forming paper 2a formed with a step to be fed into the bonding section A and the liner 3 are supplied in such a manner that the two speeds set in advance in the driving section match.

The step forming paper 2a having an adhesive applied to the step top held by the concave and convex strips of the lower roller 23 is
The liner 3 heated and supplied by the heat roll 13 is substantially the same as the lower roll 2
3 is located in contact with the outer peripheral surface (peripheral surface connecting the tops of the ridges and valleys), the liner 3 is placed on the step top of the step forming paper 2a coated with the adhesive at the position where these two rolls 13 and 23 come into contact. Superimposed. Thereafter, from the peripheral surface of the lower roll 23 to the position where the step forming paper 2a (the step forming portion) is separated, the tension acting on the liner 3 is curved along the peripheral surface of the lower roll 23 to the required rotation angle convex curved surface, and the tension acting on the liner 3 becomes lower. Roll 23
The liner 3 is pressed by the pressing roll 15 against the top of the step forming paper 2a held by the concave and convex strips. The bonding is done.

The so-called single-sided corrugated cardboard 1 thus bonded is conveyed via the guide rolls 9 by the suction conveyor 40 provided at the upper position thereof while being sandwiched from above and below by the endless belts 41 and 42 and sent out to the next step. It is done.

The single-faced cardboard 1 is manufactured as described above, and is sent to the next step to perform necessary processing.

Next, in the single-sided corrugated cardboard manufacturing apparatus of this embodiment, in order to manufacture a single-sided corrugated cardboard having a different flute, the corrugated rolls having different flutes to be formed are exchanged at a position above the machine body. Lifting / transferring means 3
0 is operated, and the step forming roll unit 20 capable of forming a required flute is exchanged with the one built in the body frame 10.

When the step forming roll unit 20 is replaced, the holding roll 15 is first retracted, and the gluing unit 14 is retracted to the retracted position so that the step forming roll unit 20 does not enter or leave the mounting portion 11. To Of course, the steam pipes for the upper and lower rolls 22 and 23 are also separated at the joint. Thereafter, the lifting / lowering transfer means 30 is operated to lift the used step forming roll unit 20 from the mounting portion 11 of the machine frame 10 above the machine body. In the case where there are two different types of step forming roll units 20 for flute formation in this embodiment, for example, the used step forming roll unit 20 taken out from the mounting portion 11 of the machine frame 10 is replaced with the machine frame 10 in FIG. It is moved and placed on the upper right stock space 16. Instead, another step-forming roll unit 20A, which has been waiting in the stock space 16 on the left side in the figure, is now suspended by the suspending device 35 in the lifting / lowering transfer means 30 as described above.
A suspension cable 37 is attached to each of the suspension rings 25 on the support frames 21 and 21 of 0A, and the step forming roll unit 20A is lifted by the operation of the lifting / lowering fluid pressure cylinder 39, and then the mounting portion of the body frame 10 by the fluid pressure cylinder 38. 1
The step forming roll unit 20A can be set at a predetermined position by lowering the elevating fluid pressure cylinder 39 after moving it up one position and positioning it. Therefore, the pressing roll 15 and the gluing unit 14
Is returned to the predetermined position, the preparation for laminating the step forming paper 2 and the liner 3 is completed.

As described above, according to the present embodiment, if a required number of different flute forming step forming roll units 20 are previously mounted on the upper part of the body frame 10 in the stock space 16, the work procedure can be reduced. By simply deciding, it is possible to quickly exchange and produce single-faced cardboard with different flutes, and to efficiently produce various types of single-faced cardboard.

Further, according to the present invention, both upper and lower rolls are formed as a step forming roll unit in a mounting portion provided on the body frame, so that it is easy to exchange with step rolls having different flute forming dimensions. In addition to the advantages that can be achieved, a heat insulating effect is obtained in which the heat applied to the step roll at the step forming section is cut off by the separation between the support frame of the step roll and the body frame.

[Brief description of the drawings]

FIG. 1 is a view showing an embodiment of a single-sided corrugated cardboard manufacturing apparatus according to the present invention, in which a step forming roll can be easily replaced.

FIG. 2 is a perspective view illustrating an example of a step forming roll unit.

FIG. 3 is a central longitudinal sectional view in which a suction conveyor in FIG. 1 is omitted.

FIG. 4 is a schematic view showing a process of bonding single-faced cardboard.

FIG. 5 is a diagram showing an aspect of a bonding portion in a conventional single-sided cardboard manufacturing apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Single-sided corrugated cardboard 2 Core paper (corrugated paper) 2a Corrugated paper 3 Liner 5, 6, 6 ', 9 Guide roll 7, 8, 8' Preheat roll 10 Body frame 11 Mounting part of step roll unit 13 Heat roll 14 Gluing Unit 15 Holding Roll 16 Stock Space 20 Step Roll Unit 21 Support Frame 22 Upper Roll 23 Lower Roll 24 Horizontal Member 25 Hanging Ring 30 Lifting / Transferring Means 31 Guide Beam 32 Trolley 33 Trolley Beam 35 Suspension Device 40 Suction Conveyor A Lamination part

Claims (3)

[Claims] 1. A single-sided corrugated cardboard manufacturing apparatus for producing a single-sided corrugated cardboard by laminating a liner on a corrugated top of corrugated paper formed into a corrugated form by a pair of corrugated rolls. The roll is configured as a step-forming roll unit configured to be able to be detached and received at an upper portion from the body frame in a state where it can be rotated steadily by receiving the power from the driving unit. A single-sided corrugated cardboard production machine with easy exchange of step forming rolls, wherein a stock space in which a plurality of rolls having different flute forming dimensions can be arranged is provided, and a step forming roll unit lifting / lowering transfer means is provided above the stock space. apparatus. 2. A step forming roll unit, comprising: a frame provided with bearing portions for supporting an upper roll and a lower roll at predetermined intervals on the left and right; a plurality of connecting members for fixedly connecting the frames; And a gear train receiving a power from a driving unit by rotating the upper and lower stage rolls in synchronization with each other, and a support member suspended by a lifting / lowering transfer means at an upper portion. 2. The apparatus for manufacturing a single-sided corrugated cardboard according to claim 1, wherein the corrugated roll is easily exchanged. 3. A stock space in which the step forming roll unit can be placed and stored in front, rear, left and right except for the position where the step forming roll unit is inserted in the upper part of the body frame. Single-sided corrugated cardboard production equipment with easy step-forming roll exchange.