CN103276620B - Sheet material tensioning apparatus and method - Google Patents
Sheet material tensioning apparatus and method Download PDFInfo
- Publication number
- CN103276620B CN103276620B CN201310208874.1A CN201310208874A CN103276620B CN 103276620 B CN103276620 B CN 103276620B CN 201310208874 A CN201310208874 A CN 201310208874A CN 103276620 B CN103276620 B CN 103276620B
- Authority
- CN
- China
- Prior art keywords
- sheet material
- pressure
- pressure roller
- controller
- roller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
Abstract
A kind of sheet material tensioning apparatus, for the rate of tension of the sheet material lateral sides in adjust operation, this device comprises the pressure roller for compressing sheet material lateral sides, that be connected with pressure roller, for providing pressure roller to be applied to the pressure on sheet material pressure-keeping mechanism, connect with pressure roller, for regulating the actuation mechanism of the lateral attitude of the relative sheet material of pressure roller, and for controlling the controller of pressure-keeping mechanism, actuation mechanism.The invention still further relates to a kind of sheet material tensioning method.Sheet material tensioning apparatus provided by the invention and method can be avoided the sidepiece produced in process compared with the sheet material of wide cut degree to wave the problem of wrinkle occurs, make that sheet material is whole in operation process transversely all has suitable rate of tension, can prevent sheet material from the accidents such as fracture occurring because of wrinkle.
Description
Technical field
The present invention relates to a kind of sheet material tensioning apparatus and method, particularly a kind of rate of tension of sheet material in running for having larger wide cut carries out the sheet material tensioning apparatus that regulates and method.
Background technology
Current Large Paper Machine manufactures paper with pulp the fabric width of paper all at 8-10 rice.Because paper width is larger; in running; usually there will be situation as shown in Figure 1; though the region 42 width of i.e. paper 40 being positioned at middle part can keep smooth by the traction of upstream and downstream; but the region 41 being positioned at both sides is slightly loose; easily wave in the trimming causing paper to be positioned at both sides in each section of process, folding, produce wrinkle, affect paper quality.Also easily cause when wrinkle are serious disconnected paper occurs, and cause damage to equipment concomitantly, economic loss is larger.
Summary of the invention
In view of this, be necessary to provide a kind of sheet material tensioning apparatus and method, can solve the problem in actual production process.
A kind of sheet material tensioning apparatus, for the rate of tension of the sheet material lateral sides in adjust operation, this device comprises the pressure roller for compressing sheet material lateral sides, be connected with pressure roller, for the pressure-keeping mechanism providing pressure roller to be applied to the pressure on sheet material, be connected with pressure roller, for regulating the actuation mechanism of the lateral attitude of the relative sheet material of pressure roller, for controlling pressure-keeping mechanism, the controller of actuation mechanism, and the tachymeter be arranged on pressure roller, for measuring the running speed of pressure roller and result feedback being recorded to controller, controller is also for the running speed of comparison pressure roller and sheet material, if speed difference is not in allowed band, then controlling actuation mechanism makes pressure roller and sheet material depart from, the ratio of the height X of this roller surface radian and the length Y of pressure roller is X:Y=1:5.
A kind of sheet material tensioning method, step comprises:
There is provided one for compressing the pressure roller of sheet material lateral sides, and the pressure-keeping mechanism and actuation mechanism that arrange is connected with this pressure roller, and for controlling the controller of pressure-keeping mechanism and actuation mechanism, wherein, the ratio of the height X of this roller surface radian and the length Y of pressure roller is X:Y=1:5;
Operate actuation mechanism by controller, regulate the relative sheet material of pressure roller position transversely;
Operate pressure-keeping mechanism by controller, provide pressure roller to be pressed on the pressure of sheet material sidepiece transversely;
Pressure roller also arranges a tachymeter, to be pressed on sheet material when this pressure roller and after being driven by sheet material and working well, this tachymeter measures the running speed of pressure roller and will record result feedback to controller, controller is used for the running speed of comparison pressure roller and sheet material, if speed difference is not in allowed band, then controls actuation mechanism and pressure roller and sheet material are departed from.
Compared with prior art, sheet material tensioning apparatus provided by the invention and method can be avoided the sidepiece produced in process compared with the sheet material of wide cut degree to wave the problem of wrinkle occurs, make that sheet material is whole in operation process transversely all has suitable rate of tension, can prevent sheet material from the accidents such as fracture occurring because of wrinkle.
With reference to the accompanying drawings, the invention will be further described in conjunction with specific embodiments.
Accompanying drawing explanation
Fig. 1 is the view of existing wider paper when running in process of production.
Fig. 2 is the schematic front view of the sheet material tensioning apparatus of one embodiment of the invention.
Fig. 3 is the schematic side view of the sheet material tensioning apparatus of one embodiment of the invention.
Fig. 4 is that the sheet material tensioning apparatus of one embodiment of the invention acts on the view after on sheet material.
Main element symbol description
Pressure roller 10
Surface 11
Support body 12
Tachymeter 13
Pressure-keeping mechanism 20
Cylinder pressure 21
Pressure-regulating device 22
Actuation mechanism 30
Motor 31
First driving member 32
Second driving member 33
Frame 34
Deflector roll 35
Sheet material 40
Sidepiece 41
Middle part 42
Following detailed description of the invention will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.
Detailed description of the invention
As shown in Figures 2 and 3, the sheet material tensioning apparatus that one embodiment of the invention provides comprises pressure roller 10, the pressure-keeping mechanism 20 be connected with pressure roller 10 and actuation mechanism 30, and for controlling the controller (not shown) of pressure-keeping mechanism 20 and actuation mechanism 30.
This sheet material tensioning apparatus is pressed on the lateral sides of sheet material 40 by pressure roller 10, make to avoid producing wrinkle compared with the sheet material 40 of wide cut degree, is beneficial to normally carrying out of production.Sheet material 40 can be the material such as paper, film.Sheet material 40 has length direction and width.Length direction is the overall bearing of trend of sheet material 40, when processing, is also the upstream and downstream direction of production process.For paper, the length direction of sheet material is in the field of business is also referred to as machine direction (MD, Machine Direction), is the overall bearing of trend of its layout of machine for processing paper.The horizontal direction of sheet material 40 is also referred to as width, is the sheet material place plane direction vertical with length direction.For paper, the horizontal direction of sheet material is also referred to as crisscross (CD, Cross Machine Direction), also namely with the direction of machine direction square crossing.
As shown in Figure 1, the sheet material 40 at horizontal direction with larger development length (such as, 8-10 rice) is when processing in running, and its sidepiece 41 being positioned at both sides of the edge part in a lateral direction easily wrinkle occurs.Namely sheet material tensioning apparatus of the present invention for preventing the sidepiece 41 transversely of this sheet material 40 from producing the wrinkle in illustrating, is avoided producing baneful influence.
This pressure roller 10 is arranged on a support body taken the shape of the letter U 12.Preferably, pressure roller 10 entirety is rendered as dolioform, and the surface 11 of pressure roller 10 is outwardly for compressing sheet material 40 lateral sides 41.This pressure roller 10 is arranged to dolioform, can make the surface 11 of protrusion preferably and sheet material 40 compress, prevent the edges at two ends of pressure roller 10 from sheet material 40, forming impression.Further, polishing can be carried out to the surface 11 of the protrusion of pressure roller 10, avoid the surface 11 of pressure roller 10 to swipe sheet material 40, damage is caused to sheet material 40.In one embodiment, the ratio of the height X of surperficial 11 radians of this pressure roller 10 and the length Y of pressure roller 10 is X:Y=1:5.The length Y of this pressure roller 10 and with the concrete numerical value of ratio of the height X of radian can according to sheet material 40 lateral sides 41 produce wrinkle concrete scope make change, and according to the concrete pressure roller 10 needing choice for use different length Y and different X, Y ratio.
Further, tachymeter 13 is installed, for measuring the running speed of pressure roller 10 in an end of pressure roller 10.After pressure roller 10 is compressed to the sidepiece 41 in a lateral direction of sheet material 40, under normal operating conditions, pressure roller 10 is driven by sheet material 40 and rotates, and the speed that the speed that thus pressure roller 10 operates should operate with sheet material 40 is consistent or basically identical.The velocity feedback measured by the tachymeter 13 installed is to controller, and controller judges to check whether pressure roller 10 rotates normally, to prevent pressure roller 10 from rotating exception, such as, blocks to cause and rotates the situations such as dumb, and cause the improper friction with sheet material 40.To consider in some accidental factors or operation process the existence of the factor such as unstable, certain deviation can be there is in the speed that pressure roller 10 operates with the running speed of sheet material 40, thus controller can be set as required, so that when this speed difference is in allowed band, all be regarded as normal.
This pressure-keeping mechanism 20 is connected with pressure roller 10, is applied to pressure on sheet material 40 for providing pressure roller 10.This pressure-keeping mechanism 20 comprises cylinder pressure 21 and pressure-regulating device 22, and this cylinder pressure 21 is connected with the support body 12 of pressure roller 10, and this pressure-regulating device 22 is controlled by the controller and for regulating the pressure size of cylinder pressure 21.This cylinder pressure 21 can be hydraulic cylinder or pneumatic cylinder, and the output shaft of cylinder pressure 21 is connected with the support body 12 of pressure roller 10, and the pressure that cylinder pressure 21 is exported can be passed on pressure roller 10, and then is applied on sheet material 40 by pressure.Operate this pressure-regulating device 22 can be used for changing cylinder pressure 21 and be applied to pressure on sheet material 40, and keep a suitable pressure, pressure roller 10 is pressed in the lateral sides 41 of sheet material 40 all the time.In addition, different according to the basic weight of sheet material 40, different force value can also be preset.The Pressure gauge that this force value can be installed on cylinder pressure 21 shows.Such as, when adopting hydraulic cylinder, Pressure gauge can be arranged in the oil inlet pipe of hydraulic cylinder.Larger based on sheet material 40 basic weight, then be applied to sheet material 40 and the principle that the pressure of the lateral sides 41 of wrinkle should be larger occurs, make a reservation for select pressure-keeping mechanism 20 to be applied to pressure on sheet material 40 according to the basic weight of sheet material 40 by controller, whether the state then by observing sheet material 40 after actual motion is desirable, if the tensioning degree of sheet material 40 lateral sides 41 does not still reach the state of expection, then by controller, the pressure that pressure-keeping mechanism 20 provides is adjusted.
The basic weight of sheet material 40 refers to the quality of sheet material 40 in unit are.For paper, basic weight is called grammes per square metre, quantitative etc. by dealer again, and these nouns have identical meaning.
Actuation mechanism 30 is connected with pressure roller 10, for regulating the lateral attitude of the relative sheet material 40 of pressure roller 10.In one embodiment, this actuation mechanism 30 is connected with pressure-keeping mechanism 20, is with dynamic pressure roller 10 to do the change of position further by driving pressure-keeping mechanism 20.In a further embodiment, this actuation mechanism 30 also directly can be connected with the support body 12 of pressure roller 10.The first driving member 32 that this actuation mechanism 30 comprises motor 31, is connected with motor 31, and the second driving member 33 coordinated with this first driving member 32, support body 12 or the pressure-keeping mechanism 20 of this second driving member 33 and pressure roller 10 are fixedly connected with.By the drive of motor 31, and make first, second driving member 32,33 start, and then dynamic pressure roller 10 can be with to move in a lateral direction at sheet material 40 relative to sheet material 40, be pressed on concrete position on sheet material 40 to change pressure roller 10.This motor 31 can be common hydraulic motor or the motor of other types.In one embodiment, first driving member 32 adopts screw mandrel, is connected with the output of motor 31, and the second driving member 33 is connected to the transmission nut in pressure-keeping mechanism 20, by coordinating of this screw mandrel and transmission nut, realize pressure roller 10 in sheet material 40 movement in a lateral direction.In some other embodiments, the first driving member 32 and the second driving member 33 can adopt the structure example of other types as gear drive, crank connecting link transmission etc.
Controller can be the conventional control system with programmable logic controller (PLC) (PLC).The running of pressure-keeping mechanism and actuation mechanism can be handled by the control of controller, and depending on real needs, pressure-keeping mechanism and actuation mechanism are adjusted in real time.
Please refer to Fig. 2, this actuation mechanism 30 can be arranged in a frame 34.This frame 34 can be the frame of the board of working sheet 40, also can be the frame arranged separately.
Please refer to Fig. 3, this sheet material tensioning apparatus is also provided with two deflector rolls 35, for transmitting sheet material 40.The length that this deflector roll 35 extends is greater than the width of sheet material 40, the lateral sides 41 of sheet material 40 and middle part 42 all can be pressed on deflector roll 35, and transmit sheet material 40 by the running of deflector roll 35.This pressure roller 10 is between two deflector rolls 35, and two deflector rolls 35 are positioned at the one side of sheet material 40, and pressure roller 10 is positioned at the relative another side of sheet material 40.Pressure roller 10 and two deflector rolls 35 lay respectively at two relative surfaces of sheet material 40, can make pressure roller 10 while compressing the lateral sides 41 of sheet material 40, and deflector roll 35 pairs of sheet materials 40 in the opposite direction carry out jacking, are beneficial to the tensioning of pressure roller 10 pairs of sheet material 40 lateral sides 41.
As shown in Figure 4, when sheet material tensioning apparatus of the present invention is pressed in sheet material 40 lateral sides 41, the wrinkle that sheet material 40 lateral sides 41 produces are by pressure roller 10 tensioning, and the wrinkle waved become the curve of the larger rounding off of tensioning degree.At horizontal two sidepieces 41 of sheet material 40, this sheet material tensioning apparatus is all set, and pass through the effect of this sheet material tensioning apparatus, can ensure that horizontal two sidepieces 41 of sheet material 40 are in tensioning state as shown in Figure 4 all the time, avoid because of wave in the pine operation of the both sides fracture and unit exception that cause.
Below again the method for work of sheet material tensioning apparatus of the present invention is described.
First, the sheet material tensioning apparatus with the pressure roller 10 described in above-described embodiment, pressure-keeping mechanism 20, actuation mechanism 30, controller etc. is provided.
Then according to the concrete working order of sheet material 40, by controller operation actuation mechanism 30, regulate pressure roller 10 sheet material 40 position transversely relatively, make pressure roller 10 substantial registration sheet material 40 need the position be tensioned.
Then, according to the basic weight of the sheet material 40 of processing, select pre-set force value, by controller operation pressure-keeping mechanism 20, make pressure roller 10 be pressed on the lateral sides 41 of sheet material 40, and there is certain pressure.
Be pressed on the real-world operation state of sheet material 40 after on sheet material 40 according to pressure roller 10, in real time adjustment pressure roller 10 sheet material 40 relative position transversely relatively, and pressure roller 10 is applied to the pressure size in sheet material 40 lateral sides 41.Such as, when pressure roller 10 is pressed on position on sheet material 40 not just to the position lateral sides 41 of sheet material 40 producing wrinkle, then by controller operation actuation mechanism 30, pressure roller 10 is changed with the relative position of sheet material 40.Again such as, when the lateral sides 41 that pressure roller 10 is pressed on sheet material 40 makes the rate of tension of sheet material 40 sidepiece 41 incorrect, when the wooden dipper that elimination sidepiece 41 produces preferably moves with wrinkle, then need by controller operation pressure-keeping mechanism 20, the pressure that pressure roller 10 is applied on sheet material 40 changes.The relative position of above-mentioned pressure roller 10 and sheet material 40, and the adjustment that pressure roller 10 is applied to the pressure on sheet material 40 is likely a process dynamically, repeatedly in actual production process, so that sheet material 40 has good rate of tension all the time, avoid the lateral sides 41 of sheet material 40 to produce not wishing the wrinkle occurred.
Further, pressure roller 10 also arranges a tachymeter 13, to be pressed on sheet material 40 when this pressure roller 10 and after being driven by sheet material 40 and working well, this tachymeter 13 measures the running speed of pressure roller 10 and will record result feedback to controller, controller is used for the running speed of comparison pressure roller 10 and sheet material 40, if speed difference is not in allowed band, then controlling actuation mechanism 30 makes pressure roller 10 and sheet material 40 depart from, prevent this speed difference between pressure roller 10 and sheet material 40, producing scraping beyong contemplation, avoid the damage of sheet material 40.If pressure roller 10 and sheet material 40 running speed difference is not in allowed band, pressure roller 10 and sheet material 40 also can be made to depart from while, give the alarm, remind site operation personnel should check the going slick property etc. of pressure roller 10 dependency structure, make pressure roller 10 again can be returned to the running speed state consistent or basically identical with sheet material 40 by during use.
In addition, before this sheet material tensioning apparatus of use, can according to the basic weight of the sheet material 40 of processing, the data prestored by controller select suitable pressure parameter, prevent pressure-keeping mechanism 20 pairs of sheet material 40 applied pressures too large or too littlely can not play due effect, avoid bringing dead wight loss, also can adjust quickly simultaneously and obtain the concrete required pressure being applied to sheet material 40.
Claims (5)
1. a sheet material tensioning apparatus, for the rate of tension of the sheet material lateral sides in adjust operation, this device comprises the pressure roller for compressing sheet material lateral sides, be connected with pressure roller, for the pressure-keeping mechanism providing pressure roller to be applied to the pressure on sheet material, be connected with pressure roller, for regulating the actuation mechanism of the lateral attitude of the relative sheet material of pressure roller, for controlling pressure-keeping mechanism, the controller of actuation mechanism, and the tachymeter be arranged on pressure roller, for measuring the running speed of pressure roller and result feedback being recorded to controller, controller is also for the running speed of comparison pressure roller and sheet material, if speed difference is not in allowed band, then controlling actuation mechanism makes pressure roller and sheet material depart from, the ratio of the height X of this roller surface radian and the length Y of pressure roller is X:Y=1:5,
This pressure roller is arranged on a support body, and this pressure-keeping mechanism comprises cylinder pressure and pressure-regulating device, and this cylinder pressure is connected with the support body of pressure roller, and this pressure-regulating device is controlled by the controller and for regulating the pressure size of cylinder pressure;
The second driving member that this actuation mechanism comprises motor, the first driving member be connected with motor and coordinates with the first driving member, this second driving member is fixedly connected with pressure-keeping mechanism.
2. sheet material tensioning apparatus as claimed in claim 1, is characterized in that: this pressure roller is dolioform, and the surface of pressure roller is protruded and is used for compressing sheet material lateral sides.
3. sheet material tensioning apparatus as claimed in claim 1, it is characterized in that: also comprise and compress sheet material lateral sides and middle part for the deflector roll transmitting sheet material, described pressure roller is between two deflector rolls, and two deflector rolls are positioned at the one side of sheet material, and pressure roller is positioned at the relative another side of sheet material.
4. a sheet material tensioning method, step comprises:
There is provided one for compressing the pressure roller of sheet material lateral sides, and the pressure-keeping mechanism and actuation mechanism that arrange is connected with this pressure roller, and for controlling the controller of pressure-keeping mechanism and actuation mechanism, wherein, the ratio of the height X of this roller surface radian and the length Y of pressure roller is X:Y=1:5;
Actuation mechanism is operated by controller, regulate the relative sheet material of pressure roller position transversely, wherein, the second driving member that this actuation mechanism comprises motor, the first driving member be connected with motor and coordinates with the first driving member, this second driving member is fixedly connected with pressure-keeping mechanism;
Pressure-keeping mechanism is operated by controller, pressure roller is provided to be pressed on the pressure of sheet material sidepiece transversely, wherein, this pressure roller is arranged on a support body, this pressure-keeping mechanism comprises cylinder pressure and pressure-regulating device, this cylinder pressure is connected with the support body of pressure roller, and this pressure-regulating device is controlled by the controller and for regulating the pressure size of cylinder pressure;
Pressure roller also arranges a tachymeter, to be pressed on sheet material when this pressure roller and after being driven by sheet material and working well, this tachymeter measures the running speed of pressure roller and will record result feedback to controller, controller is used for the running speed of comparison pressure roller and sheet material, if speed difference is not in allowed band, then controls actuation mechanism and pressure roller and sheet material are departed from.
5. sheet material tensioning method as claimed in claim 4, is characterized in that: described controller controls pressure-keeping mechanism according to the different basic weight of sheet material and regulates pressure roller to be applied to the pressure of sheet material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310208874.1A CN103276620B (en) | 2013-05-30 | 2013-05-30 | Sheet material tensioning apparatus and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310208874.1A CN103276620B (en) | 2013-05-30 | 2013-05-30 | Sheet material tensioning apparatus and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103276620A CN103276620A (en) | 2013-09-04 |
| CN103276620B true CN103276620B (en) | 2015-08-05 |
Family
ID=49059226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310208874.1A Active CN103276620B (en) | 2013-05-30 | 2013-05-30 | Sheet material tensioning apparatus and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103276620B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107379785B (en) * | 2017-08-14 | 2019-02-19 | 上海东北亚新纺织科技有限公司 | A kind of ink-jet textile printing equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002042554A1 (en) * | 2000-11-22 | 2002-05-30 | Tonttulan Takomo | Wire tensioning device |
| CN2711217Y (en) * | 2002-11-18 | 2005-07-20 | 章泰元 | Hydraulic and automatic tension device |
| DE202007007404U1 (en) * | 2006-06-06 | 2007-07-26 | Metso Paper, Inc. | Fiber belt treatment device equipped with metal belt circulation of a paper / board machine and / or aftertreatment machine |
| EP2573262A1 (en) * | 2011-09-23 | 2013-03-27 | Richard Meyer-Theilinger | Device for tensioning an endless sheet of material |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10343515A1 (en) * | 2003-09-19 | 2005-04-14 | Voith Paper Patent Gmbh | measuring device |
| CN102327848B (en) * | 2011-08-09 | 2013-06-19 | 常熟市长江胶带有限公司 | Coating machine |
-
2013
- 2013-05-30 CN CN201310208874.1A patent/CN103276620B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002042554A1 (en) * | 2000-11-22 | 2002-05-30 | Tonttulan Takomo | Wire tensioning device |
| CN2711217Y (en) * | 2002-11-18 | 2005-07-20 | 章泰元 | Hydraulic and automatic tension device |
| DE202007007404U1 (en) * | 2006-06-06 | 2007-07-26 | Metso Paper, Inc. | Fiber belt treatment device equipped with metal belt circulation of a paper / board machine and / or aftertreatment machine |
| EP2573262A1 (en) * | 2011-09-23 | 2013-03-27 | Richard Meyer-Theilinger | Device for tensioning an endless sheet of material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103276620A (en) | 2013-09-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204777915U (en) | Rewinding machine | |
| CN203173585U (en) | Dividing and cutting machine for tipping paper for cigarette | |
| CN106457657A (en) | Adjustable-angle pressing or nip roll | |
| CN101418512A (en) | Processing device and method for non-woven fabrics | |
| JP6297693B2 (en) | Blade polishing control device | |
| EP1937463A1 (en) | Folding unit | |
| JP2016016870A5 (en) | ||
| CN103276620B (en) | Sheet material tensioning apparatus and method | |
| JP5958978B2 (en) | HEAT SEALING DEVICE AND FILLING PACKING MACHINE HAVING THE SAME | |
| CN205346456U (en) | High speed dividing and cutting machine | |
| WO2012152528A1 (en) | Method for operating a transverse-seam-sealing arrangement in a tubular-bag machine, and transverse-seam-sealing arrangement in a tubular-bag machine | |
| US5716311A (en) | Apparatus and method for measuring and regulating web tension in a former section of a folding machine for a printing press | |
| JP4534847B2 (en) | Cutting method and cutting apparatus | |
| CN205889972U (en) | Corrugated box indentation device | |
| CN102691227B (en) | A kind of structure improved calender | |
| CN203877595U (en) | Film stretching device of rolled plate film laminating machine | |
| CN206375463U (en) | Vertical and high-speed cutting machine | |
| CN205397628U (en) | Fertilizer, production of fodder packing braided bag are with rolling machine | |
| CN212831906U (en) | Unwinding device for splitting machine | |
| CN207981884U (en) | A kind of production saw blade coil of strip unwinding device | |
| CN110014688B (en) | Corrugated paper cutting device | |
| RU2675990C1 (en) | Device for controlling web tension in running material web | |
| CN202530334U (en) | Calender with improved structure | |
| CN208246907U (en) | Double-station slitter and single surface corrugated paper board production line | |
| CN105328974B (en) | A kind of production unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |