CN200970902Y - Vacuum film drawing device of bag maker - Google Patents
Vacuum film drawing device of bag maker Download PDFInfo
- Publication number
- CN200970902Y CN200970902Y CN 200620125319 CN200620125319U CN200970902Y CN 200970902 Y CN200970902 Y CN 200970902Y CN 200620125319 CN200620125319 CN 200620125319 CN 200620125319 U CN200620125319 U CN 200620125319U CN 200970902 Y CN200970902 Y CN 200970902Y
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- CN
- China
- Prior art keywords
- bag making
- forming tube
- making device
- synchronized
- pull unit
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- 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.)
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Abstract
The utility model relates to a vacuum film tensioning device of a bag making machine. The utility model contains a bag making machine forming tube, two synchronized pulling devices (1,2) which are arranged on the outer side of the bag making machine forming tube. The synchronized pulling devices respectively include two synchronized pulleys(1,2) which are parallel to the axis line, and two synchronized belts which are tensionally wrapped on the synchronized pulleys respectively. A small part of the outer surface of the synchronized belt is opposite to the outer surface of the bag making machine forming tube, on the inner side of the synchronized belt, the synchronized pulling device is arranged respectively with a negative pressure cavity which communicates to a negative pressure source, a plurality of holes (1) are arranged on the wall surface of the negative pressure cavity which is near to the bag making machine forming tube, the holes (1) are opposite to the outer wall surface, the synchronized belts are arranged with a plurality of holes (2) which are opposite to the holes (1). The means of vacuum film tensioning has a better effect than the previous means of friction film tensioning, and the film does not deviate or skid when moving, with an exact tensioned film length.
Description
Technical field
The utility model relates to a kind of vacuum film drawing device of bag making device, is generally used on the packaging facilities.
Background technology
In the prior art, the film drawing device of bag making device comprises the forming tube that is fixedly installed on the support, be with pull unit synchronously for two that relatively are arranged on the forming tube outside, the band pull unit comprises two synchronous pulleys and is stretched in two synchronous belts on the synchronous pulley synchronously, the outer surface of part synchronous belt is adjacent to mutually with the outer surface of forming tube, film passes between synchronous belt and the forming tube, owing to be adjacent to mutually between synchronous belt and the forming tube, so synchronous belt and forming tube produce force of sliding friction respectively on two surfaces of film, by the effect of these force of sliding frictions, film will move along with moving of synchronous belt.Though this membrane mode also can spur film forward, but because dependence is the effect of force of sliding friction, be easy between film and the synchronous belt produce and skid, thereby make the mobile generation skew of film, cause the inaccurate of film feeding length, and wide for bigger film, this mode that the dependence force of sliding friction spurs film forward is very unreliable.
Summary of the invention
The purpose of this utility model provides a kind of film feeding length vacuum film drawing device of bag making device accurately.The utility model is implemented by the following technical programs: a kind of vacuum film drawing device of bag making device, comprise the bag making device forming tube, be with pull unit and second band pull unit synchronously synchronously for two first that are arranged on the described bag making device forming tube outside, described first is with pull unit and second to be with pull unit to comprise first synchronizing wheel and second synchronous pulley that axial line parallels respectively synchronously synchronously, tensioning and the winding synchronous belt on described first synchronous pulley and second synchronous pulley, described synchronous belt relative with the outer surface of described bag making device forming tube to the small part outer surface, described each synchronous band pull unit is respectively arranged with the vacuum cavity that is connected with negative pressure source in the inboard that is positioned at described synchronous belt, described vacuum cavity is offering a plurality of first holes near on the wall of described bag making device forming tube, described first hole faces the outside wall surface of described bag making device forming tube, offer a plurality of second holes on the described synchronous belt, described second hole and described first hole over against.
Described vacuum cavity is provided with vavuum pump, and described vavuum pump communicates with the inner chamber of described vacuum cavity by pipe.
Described first is with pull unit and second to be with pull unit relatively to be arranged on the outside of described bag making device forming tube synchronously synchronously.
Compared with the prior art the utility model has following advantage: on the band pull unit vacuum cavity is being set synchronously by utilizing, and on vacuum cavity, offer first hole that faces the bag making device forming tube, also on synchronous belt, offer simultaneously second hole that communicates with first hole, by first hole that is connected and second hole with film suction tightly on synchronous belt, along with moving of synchronous belt, film also will be followed it and be moved, thereby reached the effect of membrane, this mode ratio friction-type membrane mode better effects if in the past by the vacuum membrane, and film does not produce skew substantially when mobile, skid, and then improved the degree of accuracy of film feeding length.
Description of drawings
Accompanying drawing 1 is a front view of the present utility model;
Accompanying drawing 2 is the part front view of synchronous band of the present utility model;
Accompanying drawing 3 is the cutaway view of accompanying drawing 1 along the B-B direction;
Wherein: 1, bag making device forming tube; 2, first be with pull unit synchronously; 3, second be with pull unit synchronously; 4, first synchronous pulley; 5, second synchronous pulley; 6, synchronous belt; 7, first motor; 8, vacuum cavity; 9, first hole; 10, second hole; 11, vavuum pump; 12, pipe.
The specific embodiment
The vacuum film drawing device of a kind of bag making device as shown in Figure 1, comprise bag making device forming tube 1, two relative first synchronous band pull unit 2 and second that are arranged on bag making device forming tube 1 outside are with pull unit 3 synchronously, first is with pull unit 2 and second to be with pull unit 3 to comprise first synchronizing wheel 4 and second synchronous pulley 5 that axial line parallels respectively synchronously synchronously, tensioning and the winding synchronous belt 6 on first synchronous pulley 4 and second synchronous pulley 5, drive first motor 7 that first synchronizing wheel 4 rotates, synchronous belt 6 relative with the outer surface of bag making device forming tube 1 to the small part outer surface, first is with pull unit 2 and second to be with pull unit 3 to be respectively arranged with the vacuum cavity 8 that is connected with negative pressure source in the inboard that is positioned at synchronous belt 6 synchronously synchronously, vacuum cavity 8 is offering a plurality of first holes 9 near on the wall of bag making device forming tube 1, first hole 9 faces the outside wall surface of bag making device forming tube 1, offer a plurality of second holes 10 on the synchronous belt 6, second hole 10 communicates with first hole 9, can guarantee like this in synchronous belt 6 transmission process, second hole 10 that some all arranged at any time and a plurality of first holes 9 of fixed qty over against.
Like this when packaging film is set on the bag making device forming tube 1, owing to have the gap on the wall of packaging film and bag making device forming tube 1, and second hole 10 communicates with first hole 9, like this packaging film will be subjected in the gap atmospheric pressure and by on the lateral surface that is pressed in synchronous belt 6 tightly, like this when first motor 7 drives 4 rotations of first synchronizing wheel, synchronous belt 6 is transmission thereupon also, moves forward thereby drive packaging film.Because what rely on is that atmospheric pressure is pressed on packaging film on the lateral surface of synchronous belt 6, so the pulling mode of this pulling mode dependence sliding friction does not than before produce skew in drawing process, membrane length is stable.
Claims (3)
1, a kind of vacuum film drawing device of bag making device, comprise bag making device forming tube (1), be with pull unit (2) and second band pull unit (3) synchronously synchronously for two first that are arranged on described bag making device forming tube (1) outside, described first is with pull unit (2) and second to be with pull unit (3) to comprise first synchronizing wheel (4) and second synchronous pulley (5) that axial line parallels respectively synchronously synchronously, tensioning and the winding synchronous belt (6) on described first synchronous pulley (4) and second synchronous pulley (5), described synchronous belt (6) relative with the outer surface of described bag making device forming tube (1) to the small part outer surface, it is characterized in that: described each synchronous band pull unit (2,3) be respectively arranged with the vacuum cavity (8) that is connected with negative pressure source in the inboard that is positioned at described synchronous belt (6), described vacuum cavity (8) is offering a plurality of first holes (9) near on the wall of described bag making device forming tube (1), described first hole (9) faces the outside wall surface of described bag making device forming tube (1), offer a plurality of second holes (10) on the described synchronous belt (6), described second hole (10) and described first hole (9) over against.
2, the vacuum film drawing device of bag making device according to claim 1 is characterized in that: described vacuum cavity (8) is provided with vavuum pump (11), and described vavuum pump (11) communicates with the inner chamber of described vacuum cavity (8) by pipe (12).
3, the vacuum film drawing device of bag making device according to claim 1 is characterized in that: described first is with pull unit (2) and second to be with pull unit (3) relatively to be arranged on the outside of described bag making device forming tube (1) synchronously synchronously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620125319 CN200970902Y (en) | 2006-11-15 | 2006-11-15 | Vacuum film drawing device of bag maker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620125319 CN200970902Y (en) | 2006-11-15 | 2006-11-15 | Vacuum film drawing device of bag maker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200970902Y true CN200970902Y (en) | 2007-11-07 |
Family
ID=38882159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620125319 Expired - Fee Related CN200970902Y (en) | 2006-11-15 | 2006-11-15 | Vacuum film drawing device of bag maker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200970902Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109229526A (en) * | 2018-08-20 | 2019-01-18 | 安徽倍思特教育科技有限公司 | A kind of process gift packing device and its flow package |
-
2006
- 2006-11-15 CN CN 200620125319 patent/CN200970902Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109229526A (en) * | 2018-08-20 | 2019-01-18 | 安徽倍思特教育科技有限公司 | A kind of process gift packing device and its flow package |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071107 Termination date: 20141115 |
|
| EXPY | Termination of patent right or utility model |