AU706016B2 - Method and apparatus for single facer glue application adjustment - Google Patents
Method and apparatus for single facer glue application adjustment Download PDFInfo
- Publication number
- AU706016B2 AU706016B2 AU52981/98A AU5298198A AU706016B2 AU 706016 B2 AU706016 B2 AU 706016B2 AU 52981/98 A AU52981/98 A AU 52981/98A AU 5298198 A AU5298198 A AU 5298198A AU 706016 B2 AU706016 B2 AU 706016B2
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- AU
- Australia
- Prior art keywords
- roll
- glue application
- downstream side
- side corrugating
- corrugating roll
- Prior art date
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- Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
Description
METHOD AND APPARATUS FOR SINGLE
FACER
GLUE APPLICATION
ADJUSTMENT
BACKGROUND OF THE INVENTION: Field of the Invention: The present invention relates to a method and an apparatus for a single facer glue application adjustment in which a glue application roll is adjusted of its setting .0 position based on a variation in pressing reaction force of the glue application roll.
Description of the Prior Art: A belt pressing type single facer in the prior art is Sdescribed with reference to Fig. 2. Numeral 1 designates a glue application roll, numeral 3 designates a doctor roll numeral 4 designates a glue tank forming a wall on one side by the glue application roll 1 and the doctor roll 3, numeral 2 designates a glue within the glue tank 4, numeral 7 designates a glue application portion unit supporting the glue application roll 1, the doctor roll 3 and the glue tank 4, numeral 9 designates a downstream side corrugating roll (an upper corrugating roll), numeral 12 designates an upstream side corrugating roll (a lower corrugating roll) contra-rotating in engagement with the downstream side corrugating roll 9, numeral 11 designates a core paper, 1Anumeral 15 designates an endless belt Pressing touchingly the downstream side corrugating roll 9, numeral 13 designates a single faced corrugated board sheet, numeral 14 designates a liner, thus a glue application apparatus of a belt Pressing type single facer is constructed by the glue application roll i, the doctor roll 3 and the glue tank 4.
In the belt pressing type single facer in the prior art shown in Fig. 2, the core paper 11 is led between the upstream side corrugating roll 12 and the downstream S:i O side corrugating roll 9 engaging and contra-rotating each .other to be corrugated into a wave-shaped state and then this core paper ii is led between the glue application roll 1 and the downstream side corrugating roll 9.
SThen, in the glue application apparatus, the glue *:15 2 within the glue tank 4 is applied to the outer circumferential surface of the rotating glue application .roll i, is adjusted to form a glue film of a predetermined thickness by the doctor roll 3, is transferred rotatingly to the direction of the downstream side corrugating roll 9 and is coated on the tip portions of corrugations of the core paper 11.
Said core paper 11 and the liner 14 supplied via another route are led between the endless belt 15 and the downstream side corrugating roll 9 to be lapped each other and, with a predetermined pressing force p and temperature, 2 the core paper 11ii and the liner 14 are bonded by the glue 2 coated on the tip portions of corrugations of the core paper 11, thus the single faced corrugated board sheet 13 is produced.
Fig. 3 shows an example of a gap adjusting apparatus in the prior art for adjusting a gap between the downstream side corrugating roll 9 and the glue application roll i. Numeral 16 designates a frame, numeral 27 designates a cylinder mounted on the frame 16 and a piston 0 rod of the cylinder 27 is supported pivotally by the glue .e application portion unit 7.
•Numeral 28 designates a positioning metal element fixed to the glue application portion unit 7, numeral :*"designates an eccentric shaft and numeral 29 designates a 15 stopper supported by the eccentric shaft S"-In the gap adjusting apparatus shown in Fig. 3 for adjusting the gap between the downstream side corrugating roll 9 and the glue application roll i, the cylinder 27 is moved to the direction of elongation, the Positioning metal element 28 is hit to the stopper 29, thus the gap between the downstream side corrugating roll 9 and the glue application roll 1 is set to a predetermined measure.
If the gap between the downstream side corrugating roll 9 and the glue application roll 1 is to be adjusted in the above-mentioned state, the eccentric shaft 30 is 3 rotated, the stopper 29 is moved to the right or left in the figure, the positioning metal element 28 and the glue application portion unit 7 are moved in same direction and the gap between the downstream side corrugating roll 9 and the glue application roll 1 is finely adjusted.
Incidentally, as a roll gap adjusting apparatus not shown in the figure, there is one in which an insertion amount of a wedge-like element inserted between the stopper 29 and the Positioning metal element 28 is changed, a a stopping position of the glue application portion unit 7 is changed, thereby a gap between the downstream side corrugating roll 9 and the glue application roll 1 is adjusted.
Fig. 4 shows another example of a gap adjusting apparatus in the prior art for adjusting a gap between the adownstream side corrugating roll 9 and the glue application roll i. This roll gap adjusting apparatus is constructed so that the glue application portion unit 7 supporting the glue application roll 1, the doctor roll 3 and the glue tank 4 is moved up and down by a cylinder 21, thereby the glue application roll 1 and the downstream side corrugating roll 9 can make contact or separation each other, and at the stroke end position of the cylinder 21, the gap between the glue application roll 1 and the downstream side corrugating roll 9 is set at a predetermined measure corresponding to 4 a thickness of the core paper 11.
The gap adjusting apparatus in the prior art shown in Fig. 3 is constructed so that the cylinder 27 is moved to the direction of elongation, the Positioning metal element 28 is hit to the stopper 29, thus the gap between the downstream side corrugating roll 9 and the glue application roll 1 is set to a predetermined measure.
Further, the gap adjusting apparatus in the prior art shown in Fig. 4 is constructed so that the glue application portion unit 7 supporting the glue application roll i, the doctor roll 3 and the glue tank 4 is moved up and down by the cylinder 21, thereby the glue application roll 1 and the downstream side corrugating roll 9 can make contact or separation each other, and at the stroke end position of the cylinder 21, the gap between the glue application roll 1 and the downstream side corrugating roll 9 is set at a predetermined measure corresponding to the thickness of the core paper 11.
Accordingly, in order to make a state of glue transfer uniform in a case of change of thickness of a core paper accompanying with change of orders, it is necessary to make the roll gap adjustment manually at each time of change of orders, and moreover as the adjustment is troublesome and a long time is needed for re-setting, there is such a problem that an operation efficiency of a single facer is 5 6 lowered.
Further, there are such shortcomings that due to negligence or failure of said re-setting, for example, in case of a changed core paper 11 becoming thicker, a pressing force acts on the core paper 11 so that the core paper 11 tears, or in case of a changed core paper 11 becoming thinner, the gap increases so that a glue transfer amount becomes less.
It is therefore desirable that the present invention provides a method and/or apparatus for a single facer glue application adjustment which addresses one or more of the following: occurrence of a defective sheet due to an operation mistake such as incorrect setting change etc.; appearance, quality, strength and the like of a corrugated board sheet; and manufacturing cost of a glue application adjusting apparatus.
SUMMARY OF THE INVENTION The present invention provides a single facer glue application adjusting method for adjusting a position of a glue application roll to a downstream side corrugating roll in a single facer which corrugates a core paper in engagement with an upstream side corrugating roll, characterised in that said glue application roll is rotated *at a circumferential velocity different from or same as a circumferential velocity of said downstream side :corrugating roll; said glue application roll is moved toward said downstream side corrugating roll to touch said downstream side corrugating roll via the core paper; and when a pressing reaction force of said glue application roll varies, movement of said glue application roll is stopped so that a gap between said glue application roll and said downstream side corrugating roll is adjusted approximately to a thickness of the core paper.
The present invention also provides a single facer glue application adjusting method for adjusting a position of a Sglue application roll to a downstream side corrugating roll S: 09991HA/704 7 in a single facer which corrugates a core paper in engagement with an upstream side corrugating roll, characterised in that said glue application roll is rotated at a circumferential velocity different from or same as a circumferential velocity of said downstream side corrugating roll; said glue application roll is moved toward said downstream side corrugating roll to touch said downstream side corrugating roll via the core paper; after a pressing reaction force of said glue application roll varies and comes to a predetermined value, said glue application roll is moved to the direction of separation from said downstream side corrugating roll; and when the pressing reaction force of said glue application roll a returns to the value of the time immediately before the e commencement of variation, movement of said glue application roll is stopped so that a gap between said glue application roll and said downstream side corrugating roll is adjusted approximately to a thickness of the core paper.
The present invention extends to a single facer glue S. 20 application adjusting apparatus for adjusting a position of a glue application roll to a downstream side corrugating roll in a single facer which corrugates a core paper in :engagement with an upstream side corrugating roll, *"a'acharacterised in comprising a moving device to move said 25 glue application roll to the direction of contact or separation relative to said downstream side corrugating roll, a detection device to detect a pressing reaction force of said glue application roll and a control device to control work of said moving device based on a signal from said detection device, and being so constructed that a gap between said glue application roll and said downstream side corrugating roll can be adjusted approximately to a thickness of the core paper in response to variation in the pressing reaction force of said glue application roll.
In the claims which follow and in the preceding summary of the invention, except where the context requires Sotherwise due to express language or necessary implication, the word "comprising" is used in the sense of "including"; S: 09991HA/704 7a that is, the features specified may be associated with further features in various embodiments of the invention.
S: 0999 IHA/704 8 BRIEF DESCRIPTION OF THE DRAWINGS: A preferred embodiment of the present invention will now be described, by way of example only, with reference to the accompanying drawings in which: Fig. 1 is a side view showing one embodiment of a glue application adjusting apparatus for detecting a pressing reaction force and adjusting a gap between a glue application roll and a downstream side corrugating roll.
Fig. 2 is a side view showing a belt pressing type single facer in the prior art.
Fig. 3 is a side view showing an example of a roll gap adjusting apparatus in the prior art.
Fig. 4 is a side view showing another example of a roll gap adjusting apparatus in the prior art.
DESCRIPTION OF THE PREFERRED EMBODIMENTS Description is made with reference to Fig. 1 on an example of a construction of a glue application adjusting apparatus applied to working of a single facer glue application adjusting method according to the present o o o invention.
Fig. 1 is a side view showing a glue application :adjusting apparatus for detecting a pressing reaction force and adjusting a gap between a glue application roll .r and a downstream side corrugating roll, in accordance with a preferred embodiment of the invention.
In Fig. 1 numeral 1 designates a glue application roll, numeral 3 designates a doctor roll, numeral 4 a.designates a glue tank forming a wall on one side by the glue application roll 1 and the doctor roll 3, numeral 2 designates a glue within the glue tank 4, numeral 7 designates a glue application portion unit supporting the glue application roll i, the doctor roll 3 and the glue tank 4, numeral 9 designates a downstream side corrugating roll (an upper corrugating roll), numeral 12 designates an upstream side corrugating roll (a lower corrugating roll) contra-rotating in engagement with the downstream side S\A corrugating roll 9, numeral 11 designates a core paper, numeral 15 designates an S: 09991HA/704 -9endless belt pressing touchingly the downstream side corrugating roll 9, numeral 13 designates a single faced corrugated board sheet, numeral 14 designates a liner, thus a glue application apparatus of a belt pressing type single facer is constructed by the glue application roll 1, the doctor roll 3 and the glue tank 4.
Numeral 5 designates a glue application roll driving motor mounted on the glue application portion unit 7 and the rotation of the glue application roll driving motor 5 is transmitted to the glue application roll 1 by a power transmitting means, such as a chain, etc. so that the glue application roll 1 is rotated.
Numeral 16 designates a frame, numeral 8 designates a moving device of the glue application portion unit 7 mounted 15 on the frame 16, and the glue application portion unit 7 is moved to the right or left in the figure by the moving device 8 so that the glue application roll 1 makes contact with or separation from the downstream side corrugating roll Numeral 20 of Fig. 1 designates a reaction force detector for detecting a reaction force acting on the portion of the glue application roll i.
Next is a concrete description on function of the Sa single facer glue application adjusting apparatus shown in Fig. 1.
The downstream side corrugating roll 9 and the upstream side corrugating roll 12 to corrugate the core paper 11 are rotated with a certain revolution corresponding to a production velocity of the single faced corrugated board sheet 13 and the circumferential velocity of the downstream side corrugating roll 9 is set at an ideal circumferential velocity
V
2 according to specification of the core paper 11 or condition of the glue 2.
A circumferential velocity V, of the glue application roll 1 is set to a different circumferential velocity or a same circumferential velocity relative to the circumferential velocity
V
2 of the downstream side corrugating roll 9.
In this glue application adjustment apparatus, the reaction force detector 20 is provided on the moving device 8 for moving the glue application roll 1 of the glue application portion unit 7 so as to make contact with or separation from the downstream side corrugating roll 9, thus variation in the reaction force occurring due to movement of the glue application portion unit 7 to touch the downstream side corrugating roll 9 via the core paper 11 is detected and the detected signal so obtained is sent to a control device 10. Incidentally, as the reaction force detector in this glue application adjustment apparatus, a reaction ~force detector measuring an electric current value of a motor for the glue application portion unit moving device 8, 15 for example, is used.
In the state where the circumferential velocity V, of the glue application roll 1 is set to the above-mentioned predetermined circumferential velocity, the glue application "'-"portion unit 7 is moved to the right direction of Fig. 1 and r~r 20 the glue application roll 1 makes contact with the downstream side corrugating roll 9 via the core paper 11, S Ithen the reaction force acting on the motor for the glue application portion unit moving device 8 varies (increases) The reaction force detector 20 detects a change in said reaction force and, by the detected signal so obtained, the control device 10 adjusts and sets the position of the glue application roll 1 appropriately.
At this time, by use of the control device 10, when the reaction force (reaction force acting on the motor for the glue application portion unit moving device 8) varies due to contact of the glue application roll i, the moving device 8 is stopped so that the glue application roll i, that is, the glue application portion unit 7, is fixed, or when the reaction force varies and comes to a predetermined value, the glue application roll 1 is once moved back and when the reaction force returns to the -11initial state, the movement of the glue application portion unit 7 is stopped so as to be fixed at said position.
In the present invention having the construction and function as mentioned above, the detection device, detection position, etc. of the circumferential velocity and reaction force of the roll as the object of measurement are not limited to those described and illustrated.
Incidentally, in the preferred embodiment, "a predetermined value" of the expression "when coming to a predetermined value" may be so decided as "value before contact is made (which is to be predetermined by experiments) plus variation limit value (predetermined as 10% of the value before contact is made, for example)" Ott Further, the reason why, after the value comes to a Si.: 15 predetermined value, it is returned to the value of the time immediately before the contact, is that, if there is a play S 06 in the pressing mechanism of the glue application roll and if the pressing mechanism is stopped upon the first contact, there is a fear that the pressing force may get loose due to S: 20 the play and, therefore, the pressing mechanism is once pushed somewhat strongly so that the play disappears or 99 there remains least influence of the play to the extent possible and a limit contact (a limit at which a narrow contact is being maintained) is sought.
In the single facer glue application adjusting method and apparatus according to the present invention as mentioned above, the glue application roll which is in a state of rotating at a circumferential velocity different from or same as that of the downstream side corrugating roll is moved to touch the downstream side corrugating roll via a core paper, thereby variation in the pressing reaction force occurring at the glue application roll is detected by a detecting device and a setting position of the glue application roll is adjusted based on the detected signal so obtained, thus the gap between the glue application roll and the downstream side corrugating roll can be maintained -12approximately at the thickness of the core paper, and even in a case of change of thickness of the core paper accompanying with change of orders, a gap adjustment by manual operation can be made unnecessary and occurrence of defective sheet accompanying with operation mistake like negligence of setting change etc. can be prevented.
Further, even in a case of change of thickness of core paper in process of production, the gap between the glue application roll and the downstream side corrugating roll can be automatically adjusted, glue transfer can be done always ideally and appearance of corrugated board sheets can be improved as well as quality of strength etc. can be enhanced.
And yet such device as a gap sensor etc. is not 15 necessary, construction can be simplified and manufacturing cost of a glue application adjusting apparatus can be decreased.
In the present invention pressing reaction force is 'S"employed as the detection value, thereby as compared with 20 the case where other detected values like the circumferential velocity of the glue application roll etc.
S. e are employed, measurement of the detection value and control So based thereon become facilitated and accuracy thereof is enhanced.
Further, in the method in which the circumferential velocity of the glue application roll is used as the detection value, there is a need to employ a slip mechanism in which the circumferential velocity varies (that is, the ratio of the circumferential velocities of the glue application roll and the downstream side corrugating roll varies) when the glue application roll makes contact with the core paper and hence the glue application roll and the downstream side corrugating roll cannot be connected each other by a mechanical power transmission means of a fixed velocity ratio, while, in the present invention, it becomes possible that the glue application roll and the downstream -13side corrugating roll are connected by a power transmission means of a fixed velocity ratio as mentioned above.
While a principle of the present invention has been described above in connection with preferred embodiment of the invention, it is intended that all matter contained in the above description and illustrated in the accompanying drawings shall be interpreted to be illustrative and not in a limiting sense.
et
S
S
S e* 14 THE CLAIMS DEFINING THE INVENTION ARE AS FOLLOWS: 1. A single facer glue application adjusting method for adjusting a position of a glue application roll to a downstream side corrugating roll in a single facer which corrugates a core paper in engagement with an upstream side corrugating roll, characterised in that said glue application roll is rotated at a circumferential velocity different from or same as a circumferential velocity of said downstream side corrugating roll; said glue application roll is moved toward said downstream side corrugating roll to touch said downstream side corrugating roll via the core paper; and when a pressing reaction force of said glue application roll varies, movement of said glue application roll is stopped so that a gap between said glue application 9" 15 roll and said downstream side corrugating roll is adjusted approximately to a thickness of the core paper.
S
2. A single facer glue application adjusting method for adjusting a position of a glue application roll to a 9 9 20 downstream side corrugating roll in a single facer which corrugates a core paper in engagement with an upstream side corrugating roll, characterised in that said glue S application roll is rotated at a circumferential velocity different from or same as a circumferential velocity of said downstream side corrugating roll; said glue application roll is moved toward said downstream side corrugating roll to touch said downstream side corrugating roll via the core paper; after a pressing reaction force of said glue application roll varies and comes to a predetermined value, said glue application roll is moved to the direction of separation from said downstream side corrugating roll; and when the pressing reaction force of said glue application roll returns to the value of the time immediately before the commencement of variation, movement of said glue application roll is stopped so that a gap between said glue application roll and said downstream side corrugating roll is adjusted approximately to a thickness of the core paper.
Claims (2)
- 3. A single facer glue application adjusting apparatus for adjusting a position of a glue application roll to a downstream side corrugating roll in a single facer which corrugates a core paper in engagement with an upstream side corrugating roll, characterised in comprising a moving device to move said glue application roll to the direction of contact or separation relative to said downstream side corrugating roll, a detection device to detect a pressing reaction force of said glue application roll and a control device to control work of said moving device based on a signal from said detection device, and being so constructed that a gap between said glue application roll and said downstream side corrugating roll can be adjusted approximately to a thickness of the core paper in response 15 to variation in the pressing reaction force of said glue application roll.
- 4. A single facer glue application adjusting method substantially as herein described with reference to figure 1 a 20 of the accompanying drawings. A single facer glue application adjusting apparatus a. a a. substantially as herein described with reference to figure 1 "of the accompanying drawings. .Dated this 6th day of February 1998 MITSUBISHI JUKOGYO KABUSHIKI KAISHA By their Patent Attorneys GRIFFITH HACK ABSTRACT Object: To provide a single facer glue application adjusting method and apparatus which enable: i. to prevent occurrence of defective sheet accompanying with operation mistake like negligence of setting change of roll gap in a change of papers, 2 to improve appearance of corrugated board sheet and to enhance quality of strength etc. of same and 3. to decrease manufacturing cost of a glue application adjusting apparatus. Construction: A glue application roll 1 rotating at a circumferential velocity V 1 is moved to touch a downstream side 15 corrugating roll (an upper corrugating roll) 9 rotating at a circumferential velocity V 2 via a core paper 11 and, in response o• to variation in pressing reaction force of the glue application e• roll 1 caused thereby, a setting position of the glue application roll 1 to the downstream side corrugating roll 9 is 20 adjusted, thus a gap between the glue application roll 1 and the downstream side corrugating roll 9 is maintained approximately at a thickness of the core paper 11. .e Selected figure: Fig. 1
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8009175A JP2837126B2 (en) | 1996-01-23 | 1996-01-23 | Single-facer gluing adjustment method and apparatus |
| JP8-9175 | 1996-01-23 | ||
| AU10120/97A AU687323B2 (en) | 1996-01-23 | 1997-01-10 | Method and apparatus for single facer glue application adjustment |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU10120/97A Division AU687323B2 (en) | 1996-01-23 | 1997-01-10 | Method and apparatus for single facer glue application adjustment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU5298198A AU5298198A (en) | 1998-04-23 |
| AU706016B2 true AU706016B2 (en) | 1999-06-03 |
Family
ID=25614063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU52981/98A Ceased AU706016B2 (en) | 1996-01-23 | 1998-02-06 | Method and apparatus for single facer glue application adjustment |
Country Status (1)
| Country | Link |
|---|---|
| AU (1) | AU706016B2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5116448A (en) * | 1989-02-17 | 1992-05-26 | Mitsubishi Jukogyo Kabushiki Kaisha | Single facer capable of maintaining a constant roll gap |
| EP0536518A1 (en) * | 1991-10-11 | 1993-04-14 | Mitsubishi Jukogyo Kabushiki Kaisha | Automatic setting system for a single-facer |
| US5415720A (en) * | 1992-12-11 | 1995-05-16 | Bhs Corrugated Maschinen- Und Anlagenbau Gmbh | Gluing apparatus for a corrugated board installation |
-
1998
- 1998-02-06 AU AU52981/98A patent/AU706016B2/en not_active Ceased
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5116448A (en) * | 1989-02-17 | 1992-05-26 | Mitsubishi Jukogyo Kabushiki Kaisha | Single facer capable of maintaining a constant roll gap |
| EP0536518A1 (en) * | 1991-10-11 | 1993-04-14 | Mitsubishi Jukogyo Kabushiki Kaisha | Automatic setting system for a single-facer |
| US5415720A (en) * | 1992-12-11 | 1995-05-16 | Bhs Corrugated Maschinen- Und Anlagenbau Gmbh | Gluing apparatus for a corrugated board installation |
Also Published As
| Publication number | Publication date |
|---|---|
| AU5298198A (en) | 1998-04-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MK14 | Patent ceased section 143(a) (annual fees not paid) or expired |