CN202106646U - Film thermal-expansion length control device - Google Patents
Film thermal-expansion length control device Download PDFInfo
- Publication number
- CN202106646U CN202106646U CN2011201844288U CN201120184428U CN202106646U CN 202106646 U CN202106646 U CN 202106646U CN 2011201844288 U CN2011201844288 U CN 2011201844288U CN 201120184428 U CN201120184428 U CN 201120184428U CN 202106646 U CN202106646 U CN 202106646U
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- carry
- pinch rolls
- film
- over pinch
- roller
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Abstract
The utility model relates to a film thermal-expansion length control device which comprises a heating device, a supporting roller and a control system, wherein the supporting roller is arranged in the film proceeding direction; the film thermal-expansion length control device is characterized by further comprising a first traction roller and a second traction roller, wherein the first traction roller is arranged in the front of the heating device; the second traction roller is arranged in the rear of the heating device; and driving motors of the first traction roller and the second traction roller are respectively and electrically connected with the control system. In the film conveying process, the heating device is adopted for heating the film; meanwhile, the first traction roller and the second traction roller for conveying the film apply a tensile force along the film proceeding direction to the film so as to stretch the film, so that the length of the film reaches a preset requirement. The film thermal-expansion length control device has the advantages that the affects of various factors on the film in the production process are avoided, the film is ensured not to deform, and the control system is used for regulating the traction speed of the first traction roller and the second roller so that the film can be accurately stretched to the preset length.
Description
Technical field
The utility model relates to a kind of stretching device of film, relates in particular to the flexible length control device of a kind of film heat.
Background technology
No matter be printing of line location or the printing of off-line location; The repeat length equidistance problem of colour code in the time of all need solving the secondary chromatography; Through the secondary printing, the pattern that makes new printing and original pattern have accurate chromatography and concern and must adopt stretching fixed length technology to guarantee the chromatography accuracy on the film of the existing pattern of printing.
At present, generally be employed on the production equipment for the method for film stretching fixed length and shut down, measure the length of every edition film then, after reach the length of every edition film of control again through parameters such as adjustment of tonicity pressure and temps.Because the tension force in the production process, pressure, temperature adjustment; And many reasons such as unexpected acceleration of drive motors, deceleration, shutdown; Cause deformation of thin membrane, the length behind the film stretching is difficult to reach consistent with every edition predetermined length, in the time of can't guaranteeing the secondary printing; The accuracy of pattern chromatography causes bigger loss etc. for the location printing.
Summary of the invention
The technical problem that the utility model will solve provides the flexible length control device of a kind of film heat, and the flexible length control device of this film heat can guarantee that film is indeformable, and can accurately film stretching be arrived predetermined length.
The technical scheme that adopts is following:
The flexible length control device of a kind of film heat comprises heater, is arranged at backing roll and control system on the film direct of travel, it is characterized in that: also comprise first carry-over pinch rolls and second carry-over pinch rolls; First carry-over pinch rolls are located at the place ahead of heater, and second carry-over pinch rolls are located at the rear of heater; The drive motors of first carry-over pinch rolls and second carry-over pinch rolls is electrically connected with the control system respectively.
Above-mentioned heater can be baking oven or warm-up mill.Heater is under the situation of baking oven, also many drive rolls should be set in the baking oven, is used for supporting and transmitting film.
Through in the place ahead of heater with the rear is provided with first carry-over pinch rolls respectively and second carry-over pinch rolls come handle thin films; During work; The hauling speed of second carry-over pinch rolls is made as the hauling speed greater than first carry-over pinch rolls, and the traction speed discrepancy of second carry-over pinch rolls and first carry-over pinch rolls forms the tension force to film.In the course of conveying of film; Adopt heater that film is heated, simultaneously, first carry-over pinch rolls of handle thin films and second carry-over pinch rolls apply the tension force along the film direct of travel to film; Film is stretched, make the length of film reach predetermined requirement.The tension force in the production process, pressure, temperature adjustment have been avoided; And many reasons such as unexpected acceleration of drive motors, deceleration, shutdown; Film is impacted; Guarantee that film is indeformable, and can adjust the hauling speed of first carry-over pinch rolls or second carry-over pinch rolls, make it possible to accurately film stretching arrived predetermined length through the control system.Generally speaking, first carry-over pinch rolls and second carry-over pinch rolls constitute by a drive roll and a driven voller, and drive roll and drive motors are in transmission connection, and through the rotating speed of control drive motors, and then reach the hauling speed of controlling first carry-over pinch rolls and second carry-over pinch rolls.Usually, the hauling speed of second carry-over pinch rolls is fixed, and through regulating the hauling speed of first carry-over pinch rolls, is applied to the tension force between the film two ends and reach adjustment.
Preferred version as the utility model is characterized in that: also comprise measuring roller and photocell eye; Measuring roller and photocell eye are arranged on the second carry-over pinch rolls rear, and the drive motors of measuring roller and photocell eye are electrically connected with the control system respectively; Photocell eye is corresponding with the measuring roller position.Photocell eye reads the time of being located at adjacent two home blocks on the film, cooperates the pulse frequency and the pulse width of the drive motors of measuring roller, calculates on the rear film that is stretched length after the stretching between adjacent two home blocks.Measure on the stretched film length after the stretching between adjacent two home blocks through measuring roller and photocell eye are set, again with the pre-set length a reference value relatively, draw the stretching margin of error; Judge whether this stretching margin of error exceeds the error range of permission; If exceed the error range of permission, then adopt should the stretching margin of error as control signal, control the rotating speed of the drive motors of first carry-over pinch rolls; Thereby adjust the hauling speed of first carry-over pinch rolls; Realize regulating being applied to the tension force between the film two ends, suitably increase or reduce the amount of tension of film, make it constantly reaching requirement (being that the above-mentioned stretching margin of error drops in the error range of permission) in the adjustment; Constitute the closed-loop control of first carry-over pinch rolls thus, make more accurate the stretching of film.
In actual production, stain appears on the film, the photocell eye mistake stain as home block and read error signal is inevitable; At this moment, length is incorrect (general than actual little) after the stretching of measuring according to photocell eye and measuring roller, follows the pre-set length a reference value to compare with length after should incorrect stretchings; The stretching margin of error that draws obviously can not because can cause the hauling speed of first carry-over pinch rolls to increase suddenly like this, cause tension force not enough as the control signal of control first carry-over pinch rolls; Tension force is not enough; The air capacity of bringing thin layer into is too much, and film produces axial slip and serious dislocation easily on deflector roll, so that cause uncontrollable.For fear of causing control chaotic because of photocell eye reads stain as the home block mistake, in said structure, length before the stretching between adjacent two home blocks on the film before also can adopting first carry-over pinch rolls to cooperate photocell eye to measure to stretch; The length and the back length that stretches compare before will stretching, and draw the amount of tension of film, the amount of tension a reference value of amount of tension with the control systemic presupposition are compared again; Draw the amount of tension error amount; If this amount of tension error amount drops in the scope of allowable error, judge that then the back length that stretches is normal, if this amount of tension error amount exceeds the scope of allowable error; Judge that then the back length that stretches is unusual, and warning reminding.When the photocell eye mistake reads the stain on the film as home block; Length all reduces with the back length that stretches before stretching; The amount of tension that both relatively draw reduces equally; With it and preset amount of tension a reference value relatively, just can judge the stretching that measuring roller and viewpoint eye measure after length whether normal.
As the further preferred version of the utility model, it is characterized in that: also comprise the tension force micro-adjusting mechanism, the tension force micro-adjusting mechanism is arranged between the heater and second carry-over pinch rolls; The tension force micro-adjusting mechanism comprises dynamometry roller and the floating roller that is successively set between heater and the carry-over pinch rolls.The dynamometry roller is surveyed the actual tension of film; Actual tension compares with the tension force a reference value of control systemic presupposition; Draw the tension error value, with the control signal of tension error value as floating roller, the floating roller of control moves; Relative position between floating roller of adjustment and the heater is finely tuned the tension force that is applied to the film two ends.Be typically provided with accurate sensor on the dynamometry roller, survey the tension force of film through sensor in real time; Be typically provided with potentiometer on the floating roller, the position of the floating roller of potential value representative through changing the potential value of potentiometer on the floating roller, floating roller is moved, thereby the relative position between floating roller of adjustment and the heater is finely tuned to the tension force that is applied to the film two ends.
Through the film of heating, its surface tends to produce defectives such as fold, and in order to ensure the fineness of film, as the preferred version of the utility model, it is characterized in that: also comprise ironing roller, ironing roller is arranged between the heater and second carry-over pinch rolls.Ironing roller plates to the film after heating, and keeps the smooth and fineness of film.
For the ease of the further processing or the collection of stretched film, the preferred version as the utility model is characterized in that: also comprise the cooling and shaping device, the cooling and shaping device is arranged at the second carry-over pinch rolls rear.The cooling and shaping device makes film cooling and typing rapidly.
In order to practice thrift the typing effect of manufacturing cost and raising film, as the further preferred version of the utility model, it is characterized in that: said cooling and shaping device is second carry-over pinch rolls.Second carry-over pinch rolls are set to chill roll, practice thrift manufacturing cost on the one hand, and the drive roll of second carry-over pinch rolls and driven voller are laminated on the other hand, more help the typing of film.
The flexible length control device of film heat of the utility model; Be applicable to line production and off-line production; The putting film and receive film of rolling film under the off-line condition of production for ease, the preferred version as the utility model is characterized in that: also comprise unwinding device and wrap-up; Unwinding device is located at first carry-over pinch rolls the place ahead, and wrap-up is located at the second carry-over pinch rolls rear.
Description of drawings
Accompanying drawing is the structural representation of the utility model preferred implementation.
The specific embodiment
Do further explanation below in conjunction with the preferred implementation of accompanying drawing and the utility model.
The flexible length control device of this film heat comprises: unwinding device 1, wrap-up 2, heater 3, be arranged at backing roll 5 on film 4 direct of travels, control system, first carry-over pinch rolls 6, second carry-over pinch rolls 7, measuring roller 8, photocell eye 9, tension force micro-adjusting mechanism and ironing roller 10; First carry-over pinch rolls 6 are located at the place ahead of heater 3, and second carry-over pinch rolls 7 are located at the rear of heater 3; The drive motors of first carry-over pinch rolls 6 and second carry-over pinch rolls 7 is electrically connected with the control system respectively; Unwinding device 1 is located at first carry-over pinch rolls, 6 the place aheads, and wrap-up 2 is located at second carry-over pinch rolls, 7 rears; Measuring roller 8 is arranged on second carry-over pinch rolls, 7 rears with photocell eye 9, and the drive motors of measuring roller 8 and photocell eye 9 are electrically connected with the control system respectively; Photocell eye 9 is corresponding with measuring roller 8 positions; Ironing roller 10 is arranged between the heater 3 and second carry-over pinch rolls 7; The tension force micro-adjusting mechanism is arranged between the heater 3 and second carry-over pinch rolls 7, and the tension force micro-adjusting mechanism comprises the dynamometry roller 11 and floating roller 12 that is successively set between the heater 3 and second carry-over pinch rolls 7; Heater 3 comprises baking oven 31 and many heating drive rolls 32 that are installed in the baking oven 31.First carry-over pinch rolls 6 and second carry-over pinch rolls 7 constitute by a drive roll 61 and a driven voller 62, and drive roll 61 is in transmission connection with drive motors.Second carry-over pinch rolls 7 are set to chill roll.(do not draw in the accompanying drawing control system and drive motors, omitting these two parts does not influence description of the invention, but makes accompanying drawing more succinct, more can know and express technical problem to be solved by this invention.)
Operation principle below in conjunction with accompanying drawing summary the utility model:
Unwinding device 1, first carry-over pinch rolls 6, second carry-over pinch rolls 7, many backing rolls 5 and wrap-up 2 are realized the conveying of films 4; The hauling speed of second carry-over pinch rolls 7 is greater than the hauling speed of first carry-over pinch rolls 6; Both hauling speeds are poor, at the two ends of baking oven 31 film 4 applied the tension force along film 4 direct of travels.In the course of conveying of film 4, baking oven 31 heats film 4.
Photocell eye 9 reads the time of being located at adjacent two home blocks on the film 4, cooperates the pulse frequency and the pulse width of the drive motors of measuring roller 8, calculates on the rear film 4 that is stretched length after the stretching between adjacent two home blocks.Measure on the stretched film 4 length after the stretching between adjacent two home blocks through measuring roller 8 and photocell eye 9 are set, again with the pre-set length a reference value relatively, draw the stretching margin of error; Judge whether this stretching margin of error exceeds the error range of permission; If exceed the error range of permission, then adopt should the stretching margin of error as control signal, control the rotating speed of the drive motors of first carry-over pinch rolls 6; Thereby adjust the hauling speed of first carry-over pinch rolls 6; Realize regulating being applied to the tension force between film 4 two ends, suitably increase or reduce the amount of tension of film 4, make it constantly reaching requirement (being that the above-mentioned stretching margin of error drops in the error range of permission) in the adjustment; Constitute the closed-loop control of first carry-over pinch rolls 6 thus, make more accurate the stretching of film 4.In addition, the preceding length of stretching between adjacent two home blocks on the film 4 before first carry-over pinch rolls, 6 cooperation photocell eyes 9 are measured and stretched, the length and the back length that stretches compare before will stretching; Draw the amount of tension of film 4; Again the amount of tension a reference value of amount of tension with the control systemic presupposition compared, draw the amount of tension error amount, if this amount of tension error amount drops in the scope of allowable error; Judge that then the back length that stretches is normal; If this amount of tension error amount exceeds the scope of allowable error, judge that then the back length that stretches is unusual, and warning reminding.
Dynamometry roller 11 is surveyed the actual tension of film 4; Actual tension compares with the tension force a reference value of control systemic presupposition; Draw the tension error value, with the control signal of tension error value as floating roller 12, the floating roller 12 of control moves; Relative position between floating roller 12 of adjustment and the heater 3 is finely tuned the tension force that is applied to film 4 two ends.
10 pairs of films 4 of ironing roller plate, and make film 4 keep fineness; Second carry-over pinch rolls 7 also make film 4 quick cooling and shapings.
In other embodiments, baking oven can replace with many warm-up mills.
In other embodiments, can chill roll be set at the second carry-over pinch rolls rear cools off film.
Claims (10)
1. the flexible length control device of film heat comprises heater, is arranged at backing roll and control system on the film direct of travel, it is characterized in that: also comprise first carry-over pinch rolls and second carry-over pinch rolls; First carry-over pinch rolls are located at the place ahead of heater, and second carry-over pinch rolls are located at the rear of heater; The drive motors of first carry-over pinch rolls and second carry-over pinch rolls is electrically connected with the control system respectively.
2. the flexible length control device of film heat as claimed in claim 1 is characterized in that: also comprise measuring roller and photocell eye; Measuring roller and photocell eye are arranged on the second carry-over pinch rolls rear, and the drive motors of measuring roller and photocell eye are electrically connected with the control system respectively; Photocell eye is corresponding with the measuring roller position.
3. the flexible length control device of film heat as claimed in claim 2, it is characterized in that: also comprise the tension force micro-adjusting mechanism, the tension force micro-adjusting mechanism is arranged between the heater and second carry-over pinch rolls; The tension force micro-adjusting mechanism comprises dynamometry roller and the floating roller that is successively set between heater and the carry-over pinch rolls.
4. like the flexible length control device of each described film heat of claim 1-3, it is characterized in that: comprise that also ironing roller, ironing roller are arranged between the heater and second carry-over pinch rolls.
5. like the flexible length control device of each described film heat of claim 1-3, it is characterized in that: also comprise the cooling and shaping device, the cooling and shaping device is arranged at the second carry-over pinch rolls rear.
6. the flexible length control device of film heat as claimed in claim 5, it is characterized in that: said cooling and shaping device is second carry-over pinch rolls.
7. like the flexible length control device of each described film heat of claim 1-3, it is characterized in that: also comprise and adopt unwinding device and wrap-up, unwinding device is located at first carry-over pinch rolls the place ahead, and wrap-up is located at the second carry-over pinch rolls rear.
8. the flexible length control device of film heat as claimed in claim 4, it is characterized in that: also comprise unwinding device and wrap-up, unwinding device is located at first carry-over pinch rolls the place ahead, and wrap-up is located at the second carry-over pinch rolls rear.
9. the flexible length control device of film heat as claimed in claim 5, it is characterized in that: also comprise unwinding device and wrap-up, unwinding device is located at first carry-over pinch rolls the place ahead, and wrap-up is located at the second carry-over pinch rolls rear.
10. the flexible length control device of film heat as claimed in claim 6, it is characterized in that: also comprise unwinding device and wrap-up, unwinding device is located at first carry-over pinch rolls the place ahead, and wrap-up is located at the second carry-over pinch rolls rear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201844288U CN202106646U (en) | 2011-06-02 | 2011-06-02 | Film thermal-expansion length control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201844288U CN202106646U (en) | 2011-06-02 | 2011-06-02 | Film thermal-expansion length control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202106646U true CN202106646U (en) | 2012-01-11 |
Family
ID=45432095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201844288U Expired - Lifetime CN202106646U (en) | 2011-06-02 | 2011-06-02 | Film thermal-expansion length control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202106646U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105775862A (en) * | 2016-03-16 | 2016-07-20 | 安徽鑫旭新材料股份有限公司 | Self-adaptation system for copper extrusion forming winding speed |
| CN109130559A (en) * | 2017-06-27 | 2019-01-04 | 中本包装株式会社 | Method for multicolor printing and multi-color printing device on plastic foil |
-
2011
- 2011-06-02 CN CN2011201844288U patent/CN202106646U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105775862A (en) * | 2016-03-16 | 2016-07-20 | 安徽鑫旭新材料股份有限公司 | Self-adaptation system for copper extrusion forming winding speed |
| CN109130559A (en) * | 2017-06-27 | 2019-01-04 | 中本包装株式会社 | Method for multicolor printing and multi-color printing device on plastic foil |
| CN109130559B (en) * | 2017-06-27 | 2021-09-28 | 中本包装株式会社 | Multicolor printing method and multicolor printing device on plastic film |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120111 |
|
| CX01 | Expiry of patent term |