JPS6310062B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for handling base paper in a corrugating machine, and particularly to a method for processing roll base paper, which greatly reduces the working time required for changing base paper and improves productivity in a corrugating machine.

In conventional corrugating machines, base paper for rolls is changed when the web in use is about to run out, and when the web of base paper in use is connected to the web of new roll base paper to switch to a new base paper, or when the web of base paper in use is changed to a predetermined position. This work is performed when a production order is completed and a new roll of paper is to be used. In this case, the operation of the corrugating machine must be temporarily slowed down or stopped until the paper change cycle is completed. Temporarily slowing down the operation of the corrugating machine in this way will reduce the productivity of corrugated cardboard sheets in the corrugating machine.

The present invention moves one mill roll stand out of at least two or more mill roll stands that are self-propelled in response to commands in the vertical and horizontal directions and that is equipped with a paper splicing preparation mechanism and a roll base paper support mechanism from a roll base paper loading position. The process of moving the roll base paper to the paper splicing preparation position, the process of moving the roll base paper from the paper splice preparation position to the paper splice standby position, and the operation position for supplying roll base paper from the paper splice standby position to the paper processing machine when a paper splice command is issued. A process of moving the other mill roll stand to the side of the other mill roll stand to perform paper splicing, a process of moving the other mill roll stand mentioned above that supports the used roll base paper to the roll base paper delivery position after the paper splicing is completed, and a process of moving the used roll base paper to the roll base paper delivery position. The method is characterized by a step of moving the other mill roll stand from which the mill roll stand has been carried out to the roll paper carrying position, and its purpose is to organically and automatically move the mill roll stand. The present invention aims to provide a roll base paper processing method that can eliminate conventional problems and improve productivity.

As described above, the present invention provides a paper processing machine that automatically moves two or more mill roll stands equipped with a paper splicing preparation mechanism and a roll base paper support mechanism in the vertical and horizontal directions according to a predetermined control sequence. During operation, a roll of base paper is set in one of the mill roll stands mentioned above, and it is moved to the paper splicing standby position, and when a paper splicing command is received, paper splicing is performed automatically, and after paper splicing is completed, the used paper is Since the paper rolls are automatically moved to the roll paper delivery position, and then the empty mill roll stand is moved to the roll paper delivery position, the operation of the paper processing machine can be temporarily slowed down as in the past. The productivity of corrugated board sheets can be greatly improved by quickly and automatically changing the roll base paper without any problems.

The present invention will now be described with reference to illustrated embodiments.

Reference numeral 1 designates a mill roll stand which, as in the past, has a pair of arms 6, 6', left and right frames 7, 7', a shaft 9 horizontally suspended between these frames 7, 7', a rolling center 5 for checking the roll paper 3, 5' and brakes 8, 8'.

10 and 11 are vertical rails and horizontal rails, and vertical feed wheels 1, which will be described later, are provided on the mill roll stand 1.
2. The vertical guide wheels 12', the lateral guide wheels 13, and the lateral guide wheels 13' are installed on the floor so as to cross each other as shown in the figure so that the vehicle can run.

The vertical feed wheel 12 and the vertical guide wheel 12' are fixed to rotatable shafts 15, 15' by bearings 22 provided on the frames 7, 7'.

Further, the above-mentioned lateral feed wheel 13 and lateral guide wheel 13'
are secured to shafts 14 and 14', respectively. On the other hand, the cylinder 18 is connected to the frame 7,
7' is fixed to the inner surface. Note that four cylinders are used in this embodiment.

The shafts 14, 14' have bearings 17, 17' built into the piston rods 16, 30 that move up and down along the guide 24 by pressure fluid supplied and discharged in response to commands from each of the cylinders 18 mentioned above.
It is rotatably supported by.

23 and 29 are motors that connect the fourth motor to the frames 7 and 7'.
It is installed as shown in Figures 1 and 5, and transmits driving force to the shafts 14, 15 through sprocket wheels 20, 21, chain 25, and sprocket wheels 28, 19, chain 27, respectively. The horizontal feed wheels 13 and the vertical feed wheels 12 are driven.

Reference numeral 31 denotes an idler, which is housed in a spring box 33 supported by a bracket 26 attached to a frame 7' so as to be freely protrusive and retractable via a spring 34, as shown in FIG. Pressure is applied.

Supports 50', 50 are erected on the frames 7', 7, and arms 37',
37 is rotatably attached. The arms 37', 37 are connected to the frames 7', 37 via fulcrums 49', 49, which are vertically provided at the center of the lower surface thereof.
It is supported by cylinders 48', 48 attached to the arms 37', 48 so as to be able to swing vertically, and both shaft ends of the vacuum roller 36 are rotatably supported at the free ends of the arms 37', 37. There is. The vacuum roller 36 is formed into a hollow cylindrical shape, and as shown in FIG. 9, a large number of small holes are bored in the longitudinal direction over a considerable range at an angle θ shown in FIG. 11 on the cylindrical surface. A single V-shaped groove a is drilled parallel to the axis of the vacuum roller 36 over its entire length at the position shown on the outer peripheral surface. In addition, the vacuum roller 36
A through hole reaching the inside of the hollow cylinder is provided at the center of one shaft end face of the rotary joint 45. At the entrance of this hole, a hose 46 connected to a vacuum source 47 for evacuating the inside of the hollow cylinder connects to the rotary joint 45. It is attached through.

38 is rotatably attached to the arm 37' by a pin 43 with a ratchet, and has a V-shaped groove at its front end that can be engaged with and detached from the V-shaped groove b dug on the shaft end of the vacuum roller 36. It has a shaped claw (protrusion). Further, a spring box 41, a spring seat 39 and a spring 40 are connected to the other end of the ratchet 38 as shown in FIG. supported.

A beam 52 is stretched between the tops of the pillars 50' and 50, and an elastic seat 53 is attached to the upper surface of the beam 52 over almost its entire length.

Further, as shown in FIGS. 15 and 16, cylinders 55', 55 are attached to the beam 52 at their head sides by pins 75', 75, and piston rods 56', 56 are attached to screws 59', 59 to the beam 57. beam 57
has a length extending over the entire width of the vacuum roll 36, and both ends thereof are slidable by slide plates 58', 58 (see FIGS. 15 to 17) fixed to supports 50, 50'. .

Further, a protrusion 54 is provided on the support post 50', and a protrusion 54 is provided on the arm 3.
7', 37 are pushed up by the cylinders 48', 48 (see Fig. 10), the ratchet 38
It is fixed at a position that corresponds to the contact point of the spring seat 39.

Reference numeral 60 denotes a paper splicing device, and arms 64', 64, which are one of the constituent members of the device, are attached to frames 7 suspended from known bridge frames 74', 74.
A nip roll 63 is rotatably attached to the free end of the shaft 79, which is rotatably attached to the shaft 79, which is rotatably attached to the shaft 79, which is attached to the frames 71', 71. It is oscillated by cylinders 66' and 66.

The nip roll 63 is operated when the mill roll stand 1' is at position B (see FIG. 8), which is the paper splicing position, and the arms 37', 37 are lifted by the cylinders 48', 48, and the cylinders 66, 66 It is attached at a position where it presses the vacuum roll 36 when it is pushed down by ' (the state shown by the chain line in FIG. 10).

Furthermore, the above-mentioned frames 71', 71 have a first
As shown in FIG. 3, cylinders 67', 67 are attached, and a beam 75 suspended via its piston rod is attached to the frames 71', 71 via an elastic presser 61 attached to its lower surface. It moves up and down along the attached guides 69' and 69.

62 is a knife with a serrated front edge, and the cylinder 6 is also attached to the frames 71' and 71.
8', 68, and moves up and down along guides 70', 70 provided on frames 71', 71.

The above-mentioned presser foot 61 is attached to each of the above-mentioned cylinders 67', 67, 68', 68 when the mill roll stand 1' is located at the above-mentioned position B (FIG. 8).
When the rod is extended, it hits an elastic seat 53 attached to the upper surface of the beam 52 connecting the tops of the supports 50', 50, and the knife 62 is further wedged into the elastic seat 53. (See the position indicated by the chain line in Figure 10).

In FIG. 10, 72 is a known web accelerator, and 73 is a known web 4 storage device. Two pairs of the vertical rails 10 and horizontal rails 11 shown in FIGS. 1, 2, and 3 are arranged on the floor as shown in FIG. 19, and on each of these rails as shown in FIG. , three first to third mill roll stands having the same structure are arranged. Also, the base paper delivery conveyor 77 and the trolley 2 are connected to the first
It is buried in the position shown in Fig. 9 in the same manner as before.
Note that the vertical rail 10 and horizontal rail 11 are as follows:
As shown in FIG. 2, the distances are made to match the intervals between the vertical wheels 12 and the vertical guide wheels 12' and the horizontal wheels 13 and the horizontal guide wheels 13' of the mill roll stand 1. In addition, a rotary joint equipped with a slip ring and a rotor seal is used to supply power, signals, and air sources to each mill roll stand from the ceiling at approximately the center of the vertical and horizontal rails 10 and 11 in Fig. 19. Wiring and piping will be done from there to each mill roll stand.

In this embodiment described above, the first to third
As shown in FIG. 18, three mill roll stands are placed at appropriate positions on the vertical rail 10 and the horizontal rail 11. For example, the first mill roll stand is placed at the splicing preparation position A (hereinafter referred to as position A) where the new roll base paper 3' is chucked and spliced prepared, and the second mill roll stand is placed at the splicing preparation position A (hereinafter referred to as position A), where the new roll base paper 3' is chucked and spliced prepared, and the second mill roll stand is placed at the splicing preparation position A (hereinafter referred to as position A), where the new roll base paper 3' is chucked and spliced prepared. The third mill roll stand is placed at the operating position C (hereinafter referred to as the C position) where it is feeding, and the third mill roll stand is placed at the position D (hereinafter referred to as the D position) where the used roll base paper is transported out of the production line. There is. In addition, in Figure 18
A' position is the position where the new roll base paper 3' placed on the trolley 2 is sent to the above-mentioned paper splicing preparation position A;
Position B is similar to position B shown in FIG. 8 and indicates the paper splicing position.

The three mill roll stands arranged in this way are moved vertically or horizontally using vertical wheels 12,
This is carried out by running the vertical guide wheels 12', the horizontal running wheels 13, or the horizontal guide wheels 13' along the vertical rails 10 or the horizontal rails 11. That is, when moving the mill roll stand vertically, for example from the above-mentioned position A to position B, by driving the motor 29 shown in FIG. As a result, the mill roll stand is moved longitudinally along the longitudinal rail 10 by the longitudinal wheels 12, 12, with the longitudinal guide wheels 12', 12' rotating in tandem. On the other hand, the lateral traveling wheels 13, 13 and the lateral guide wheel 1
3' and 13' are designed to simultaneously operate the four cylinders 18 in the direction of retracting the rod to release the engagement with the horizontal rail 11 so as not to hinder the vertical movement of the mill roll stand.

At this time, the sprocket wheel 2 shown in FIG.
0 and 21 is shortened and the chain 25 slackens, but the idler 31 shown in FIG. 7 is pushed out by the spring 33, absorbs this slack, and
5 from coming off from the sprocket wheel 21.

Next, when moving this mill roll stand horizontally, for example from position B to position C, first the cylinder 18 shown in FIGS. 4 and 6 operates in the direction of extending the rods 16 and 30, and 13, 13 and the lateral guide wheels 13', 13' are brought into contact with the lateral rail 11, and the rod 1
6, 30 further downward to lift the entire mill roll stand and disengage the vertical running wheels 12, 12 and the vertical guide wheels 12', 12' from the vertical rail 10. Then, when the motor 23 shown in FIG. 4 is started,
Sprocket wheels 20, 21 and chain 2
A shaft 14 is driven via 5 and can transport the mill roll stand transversely.

In this way the mill roll stand did the above
It travels to each position A', A, B, C, and D according to a predetermined control sequence (not shown), and when it arrives at a predetermined position, its arrival is automatically detected by a sensor such as a limit switch in a known manner. It is configured to detect and stop at that position until the next activation command comes.

Next, the movements of the first to third mill roll stands in this embodiment configured as described above, and the procedures for carrying in roll base paper, mounting on the mill roll stands, and carrying out used roll base paper will be explained. .

First, the second mill roll stand is at position C (see FIG. 18), and as shown at position C in FIG.
It is in driving condition.

Meanwhile, the first mill roll stand is
Move laterally to position A′ in the figure and stop. When the mill roll stand stops at this position, the roll base paper 3', which has been previously loaded on the cart 2, is automatically carried into between the pair of arms 6, 6' of the mill roll stand. Then, this mill roll stand moves laterally in the opposite direction to position A, chucks the roll base paper 3' with the pair of arms 6, 6', and waits. At this time, the arms 37', 37 shown in FIG. 10 are lowered by the cylinders 48', 48 to the position shown by the solid line (in FIG. 8, the position shown by the dashed line). In this state, we begin the paper splicing preparation work. First, move the ratchets 38' and 38 to insert the claws of the ratchets into the V-shaped grooves b of the vacuum roll shaft as shown in FIG. By this operation, the rotation of the vacuum roll 36 is determined. Next, the web 4' at the end of the winding of the new roll base paper 3' is guided to the upper surface of the vacuum roll 36, which has a large number of small holes, as shown in FIG. Inside the vacuum roll 36 is a hose 46
Through this, the web 4' is axially evacuated by a vacuum pump 47, and the leading end of the web 4' is attracted to the surface of the vacuum roll 36. Next, using the V-shaped groove a provided on the surface of the vacuum roll 36 as a guide, the operator manually cuts off the tip of the web 4' with a knife N.
The edge of the web 4' is straightened, and a double-sided paper splicing tape 78 is adhered to the leading edge of the web 4', and the seal 7
8' is removed, and the manual work in the paper splicing preparation operation is completed.

When this manual work is completed, the rods of the cylinders 48', 48 are extended, and the vacuum roll 36 is moved to the arms 37', 37'.
7, it rotates upward about the shafts 51', 51 as shown in FIG. On the other hand, the first
In Figure 5, since the rods 56' and 56 of the air cylinders 55' and 55 above the struts 50' and 50 have been extended in advance, the beam 57 supported by the rods 56' and 56 has rotated upward. Press the side of the vacuum roll 36 to transfer the web 4' to the vacuum roll 3.
6. Fix it on top. Further, the latches 38', 38 are bent by the protrusions 54', 54, and their claws are pushed out from the grooves b, the vacuum roll 36 is disengaged from the latches 38', 38, and the vacuum pump 47 will be stopped.

The first mill roll stand, which has completed the paper splicing preparation at position A (see Fig. 18) as described above, unwinds the slack web 4' and returns to position B for paper splicing according to the above-mentioned procedure. self-propelled,
Wait until paper splicing command is issued.

At this time, the edge of the tape 78 adhered to the tip of the web 4' of the newly prepared roll base paper 3' on the surface of the vacuum load 36 of the first mill roll stand is located on the center line with the nip roll 63. It is calculated as follows.

If a paper splicing command is received during this waiting period, the presser foot 61
(See Figures 10 and 13) are the cylinders 67',
67, the web 4 that has been fed into the corrugating machine until now is held between the presser foot 61 and the elastic seat 53 (see FIG. 10), and the feeding of the web 4 is stopped. At the same time, the brake device 8 of the rolling center 5 is activated to stop the roll base paper 3 being fed. continue,
Nipprol 63 is at the chain line position (see Figure 10)
By pressing the vacuum roll 36, the trailing end of the web 4 being fed and the leading end of the web 4', which is suctioned and supported by the vacuum roll 36, are bonded together with a double-sided paper splicing tape 78. and paper splicing is done. Next, the knife 62 is pushed down by the air cylinders 68', 68, and its cutting edge sinks into the elastic seat 53 to cut the web 4. At the same time, rod 5 of cylinders 55', 55
6', 56 shrink, and the vacuum roll 36 of the beam 57
By releasing the presser foot, the vacuum roll 36
serves as a guide roll that is rotatable with respect to the web 4, as shown in position C in FIG.

When the above operations are completed, the nip roll 63, knife 62 and presser foot 61 are returned to the solid line position,
As before, the web accelerator 72 accelerates the new roll paper 3' to corrugating machine speed. During this short stop, the web storage device 73
The corrugating machine does not need to be slowed down because it releases the stored web 4. This completes the paper splicing operation. This paper splicing operation is performed entirely automatically according to a predetermined control sequence.

Next, the used roll base paper 3 at the C position (see FIG. 18) undergoes end treatment and moves vertically by itself while being supported by the second mill roll stand to reach the D position.

On the other hand, the first mill roll stand, which has finished splicing at position B, is self-propelled horizontally and reaches position C.
It stops and goes into a running state. On the other hand, before the mill roll stand reaches the D position, the third mill roll stand removes the roll paper, and the conveyor 7 shown in FIG.
7 and carried the same base paper out of the production line,
Move to A′ position. Therefore, the rolled base paper 3 that has arrived at position D is carried out of the production line by the conveyor 77 in the manner described above, completing one cycle of the base paper supply process.

In this way, when the above-described series of new base paper roll supply operations, paper splicing, and unloading operations are completed, the base paper roll 3'' of the next order can be immediately loaded at position A' to prepare for paper splicing. In this embodiment, as mentioned above, three mill roll stands are used, so there is no need to wait for the work to carry out the used roll base paper 3 that has been spliced, and the roll base paper for the next order can be transferred. 3" can be prepared for paper splicing, so the operation of the corrugate machine, the paper splicing work, and the loading and unloading of roll base paper can be done in parallel.

Therefore, unlike in the past, there is no need to temporarily slow down or stop the operation of the corrugating machine, which not only makes it possible to automate the paper changing process, but also allows the corrugating machine to increase its speed. productivity can be greatly improved.

Although this example describes the case where three mill roll stands are used, it goes without saying that the same function as in this example can be achieved even if two or four or more of the same mill roll stands are installed. .

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; Fig. 1 is a schematic side view thereof, Fig. 2 is a plan view thereof, and Fig. 3 is a sectional view taken along the line - in Fig. 1, with the frame and rails shown at one point. Indicated by a chain line. Figure 4 is its side view.
5 is a view taken in the direction of the V arrow in FIG. 3, FIG. 6 is a view taken in the direction of the arrow in FIG. 5, FIG. 7 is a view taken in the direction of the arrow in FIG. 9 is an enlarged plan view showing a part of the paper splicing preparation mechanism in this embodiment; FIG. 10 is a schematic side view showing the paper splicing preparation mechanism and the paper splicing mechanism in this embodiment; FIG.
1 is a sectional view taken along the line XI--XI in FIG. 9, FIG. 12 is an explanatory diagram showing the related structure of the frame and the nip roll in this embodiment, and FIG. 13 is a view taken along the - arrow in FIG. Figure 14 is the same as in Figure 10.
15 is a partially enlarged view of the section in FIG. 10, FIG. 16 is a partial plan view thereof, and FIG. 17 is a partial enlarged view of the section in FIG.
6 is a partial view in the direction of arrows, FIG. 18 is an explanatory diagram showing the operation mode of the mill roll stand in this embodiment, and FIG. 19 is a plan view showing the layout of the vertical and horizontal rails, unloading conveyor, and cart in this embodiment. It is. 1, 1': Mill roll stand, 3: Roll base paper in use, 3': New roll base paper, 10: Vertical rail, 11: Horizontal rail, 35: Paper splicing preparation device, 6
0: Paper splicing device, A′: New roll base paper loading position,
A: Paper splicing preparation position, B: Paper splicing position, C: Operating position, D: Used roll base paper delivery position.

Claims (1)

[Claims] 1 One mill roll stand of at least two or more mill roll stands that self-propels in the vertical and horizontal directions upon receiving commands and is equipped with a paper splicing preparation mechanism and a roll base paper support mechanism is moved from the roll base paper loading position to the roll base paper conveyance position. The process of moving paper to the next preparation position, the process of moving the paper from the paper splicing preparation position to the paper splicing standby position, and the process of moving the paper from the paper splicing standby position to the paper splicing standby position; The process of moving the mill roll stand to the side to perform paper splicing; the process of moving the other mill roll stand mentioned above that supports the used roll base paper to the roll base paper delivery position after the paper splicing is completed; and the process of transporting the used roll base paper. A roll base paper processing method comprising the step of moving the other mill roll stand to the roll base paper carrying position.