CN202783910U - Rolling film tensioning device - Google Patents

Rolling film tensioning device Download PDF

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Publication number
CN202783910U
CN202783910U CN 201220324972 CN201220324972U CN202783910U CN 202783910 U CN202783910 U CN 202783910U CN 201220324972 CN201220324972 CN 201220324972 CN 201220324972 U CN201220324972 U CN 201220324972U CN 202783910 U CN202783910 U CN 202783910U
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CN
China
Prior art keywords
film
roller
belt
thin film
transition 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.)
Expired - Lifetime
Application number
CN 201220324972
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Chinese (zh)
Inventor
李金国
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Joyea Packaging Technology Co Ltd
Original Assignee
Jiangsu Joyea Packaging Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jiangsu Joyea Packaging Technology Co Ltd filed Critical Jiangsu Joyea Packaging Technology Co Ltd
Priority to CN 201220324972 priority Critical patent/CN202783910U/en
Application granted granted Critical
Publication of CN202783910U publication Critical patent/CN202783910U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to a rolling film tensioning device which is arranged in packing equipment and used for a belt-shaped thin film material conveying device. The rolling film tensioning device comprises a transitional roller and a magnetic powder brake, wherein the transitional roller is arranged between a rolling film unreeling mechanism and material used equipment, and after a belt-shaped thin film which is emitted by the rolling film unreeling mechanism is contacted with the surface of the transitional roller, the belt-shaped thin film is conveyed to the material used equipment. The magnetic powder brake exerts torque on a rotating shaft of the transitional roller in a direct mode or through a speed changing mechanism, and the torque enables the transitional roller to exert force which is opposite to the sending-out direction of the belt-shaped thin film on the belt-shaped thin film which is contacted with the transitional roller. The rolling film tensioning device is simple in structure, convenient for tensile force to adjust, suitable for different tensile force requirements, and good in tensile force stability.

Description

Volume film tightening device
Technical field
The utility model relates to a kind of volume film tightening device that is used for the band-like film device for transporting objects in packaging facilities.
Background technology
In using band-like film material package equipment, the volume film is emitted from unreeling structure, outputs to materials equipment through behind some intermediate calender rolls.In real-world operation, if the volume film before the materials equipment is more lax, the planeness of volume film is affected, and then affects the crudy of following process; On the other hand, for the volume film of multiple row output, then can make the materials volume production of multiple row materials equipment give birth to different, thus affect product quality one to property.Therefore usually before materials equipment, need to arrange volume film tightening device, make the volume film under suitable tensile force effect, be in tensioning state, to overcome the problems referred to above.Existing volume film tightening device adopts spring as the production part of tension force usually, but this tightening device tension force take spring as power is difficult to adjust, and can't adapt to unlike material, different process requirement to the requirement of tension variation; Spring members is after long-time the use simultaneously, and its elastic force also can change, thereby can affect product design.
Summary of the invention
Technical problem to be solved in the utility model is, provide a kind of simple in structure, tension adjustment convenient, adapt to the differential tension requirement, volume film tightening device that tension stability is good.
Volume film tightening device of the present utility model includes the transition roller between volume film unreeling structure and materials equipment, sends to materials equipment behind the band-like film contact transition roller surface that is emitted by volume film unreeling structure; Be provided with an electromagnetic power brake in the device, electromagnetic power brake applies braking torque to the rotating shaft of transition roller, and this torque makes transition roller apply the power opposite with the band-like film transport direction to the band-like film of with it contact.
Also include the pressure roller that is pressed on the transition roller in the device of the present utility model, described band-like film passes between pressure roller and transition roller.
Described pressure roller is exerted pressure to it by spring.
Advantage applies of the present utility model exists:
1, the level of torque by electromagnetic power brake output is constant, thereby makes the suffered tension force of volume film keep constant, has guaranteed the stable output to follow-up materials equipment;
2, by changing the working current of electromagnetic power brake, can regulate output torque and volume film tension force easily, can adapt to the variation of different materials and technological requirement, applied widely;
When 3, volume film multiple row was exported, each row was rolled up the high conformity of the suffered tension force of film, had guaranteed the crudy of product.
Description of drawings
Fig. 1 is the end face structure scheme drawing of the utility model embodiment;
Fig. 2 is the Facad structure scheme drawing of the utility model embodiment.
The specific embodiment
As shown in the figure, this volume film tightening device includes the transition roller 1 between volume film unreeling structure and materials equipment, also includes the pressure roller 3 that is pressed on the transition roller 1, and pressure roller 3 is exerted pressure to it by spring 4.The band-like film M that is emitted by volume film unreeling structure passes between pressure roller 3 and transition roller 1, and sends to materials equipment behind contact transition roller 1 surface; Have an electromagnetic power brake 2 by speed-changing mechanism the rotating shaft of transition roller to be applied torque, this torque make 1 pair of transition roller with it the band-like film M of contact apply the power opposite with the band-like film transport direction.
Embodiment shown in the figure sends to materials equipment after the band-like film M that is emitted by volume film unreeling structure walks around pressure roller 3 and transition roller 1 successively in the course of the work, and the constant torque of magnetic motor output produces a constant tension force at band-like film.

Claims (3)

1. a volume film tightening device includes the transition roller (1) between volume film unreeling structure and materials equipment, sends to materials equipment behind band-like film contact transition roller (1) surface that is emitted by volume film unreeling structure; It is characterized in that: be provided with an electromagnetic power brake (2) in the device, electromagnetic power brake applies torque to the rotating shaft of transition roller, and this torque makes transition roller (1) apply the power opposite with the band-like film transport direction to the band-like film M of with it contact.
2. volume film tightening device according to claim 1, it is characterized in that: also include the pressure roller (3) that is pressed on the transition roller (1) in the device of the present utility model, band-like film passes between pressure roller (3) and transition roller (1).
3. volume film tightening device according to claim 2, it is characterized in that: described pressure roller (3) is exerted pressure to it by spring (4).
CN 201220324972 2012-07-06 2012-07-06 Rolling film tensioning device Expired - Lifetime CN202783910U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220324972 CN202783910U (en) 2012-07-06 2012-07-06 Rolling film tensioning device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220324972 CN202783910U (en) 2012-07-06 2012-07-06 Rolling film tensioning device

Publications (1)

Publication Number Publication Date
CN202783910U true CN202783910U (en) 2013-03-13

Family

ID=47811225

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220324972 Expired - Lifetime CN202783910U (en) 2012-07-06 2012-07-06 Rolling film tensioning device

Country Status (1)

Country Link
CN (1) CN202783910U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103224059A (en) * 2013-04-03 2013-07-31 苏州亚和保鲜科技有限公司 Film pressing device of modified atmosphere packing machine
CN103587998A (en) * 2013-11-05 2014-02-19 成都瑞克西自动化技术有限公司 Tension control device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103224059A (en) * 2013-04-03 2013-07-31 苏州亚和保鲜科技有限公司 Film pressing device of modified atmosphere packing machine
CN103587998A (en) * 2013-11-05 2014-02-19 成都瑞克西自动化技术有限公司 Tension control device
CN103587998B (en) * 2013-11-05 2016-06-15 成都瑞克西自动化技术有限公司 Tenslator

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C14 Grant of patent or utility model
GR01 Patent grant
CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20130313