CN201002337Y - Bidirectional synchronization drawing clamp mechanism - Google Patents
Bidirectional synchronization drawing clamp mechanism Download PDFInfo
- Publication number
- CN201002337Y CN201002337Y CNU2006201688363U CN200620168836U CN201002337Y CN 201002337 Y CN201002337 Y CN 201002337Y CN U2006201688363 U CNU2006201688363 U CN U2006201688363U CN 200620168836 U CN200620168836 U CN 200620168836U CN 201002337 Y CN201002337 Y CN 201002337Y
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- China
- Prior art keywords
- long
- rod
- triangle
- jig arm
- hinge
- 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
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- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
The utility model relates to a two-way synchronization stretching clamp device, and the clamp head is provided at the extending section end of the clamp arm in the hinge four rod device; the hinge four rod device which is to be triangle after being spread is composed of a long clamp arm, a long link rod and a folding rod by connection; a rail roller wheel is connected at the hinge position, and a plurality of triangle hinge four rod devices form the extension-type plane link rod structure by connection; a short clamp arm is connected on the long link rod of each triangle hinge four rod device, and a short link rod is connected between the long clamp arm and the short clamp arm of the adjacent triangle four rod device, and the hinge four rod device which is to be quadrangle after being spread. The utility model has the features of compact structure, smooth operation, even clamp force, stable stretch ratio as well as simple and reliable control.
Description
Technical field
The utility model relates to a kind of stretcher of plastic film production lines, two stretching clip mechanisms that go on foot in the same way particularly.
Background technology
In the production process of plastic sheeting, need stretch to film horizontal, vertical both direction in the plane coordinates of mecystasis lower edge, macromolecular chain is aligned, to improve the characteristic of film along draw direction.At present, biaxial orientation process is carried out mostly in two steps, utilizes the roller with certain speed ratio that film is carried out longitudinal stretching earlier, realizes cross directional stretch by the jaw type clip orbiting that is clipped in the film both sides then.The problem that two-way asynchronous stretching exists is: plastic sheeting is being carried out vertical and horizontal stretching front and back, and all will be through technical process such as preheating and cooling and shaping, the complex structure of its equipment, cost height.It is 200420039549.3 frequency control synchro-draw railway clamp that China's utility model patent discloses a kind of application number, and be characterized in: a variable-frequency motor is housed on each clip, and clip is slided along track by driven by motor, realizes that bi-directional synchronization stretches.Because each clip has a variable-frequency motor, its cost height, film stretching is than realize electric-control system complexity, poor reliability by the variable-frequency motor speed governing.
Summary of the invention
The purpose of this utility model is to provide a kind of mechanical double-way synchro-draw clip mechanism, and this clip mechanism has not only been realized the bi-directional synchronization stretching in the orbiting process, and operation control is easy reliably, cost is low.
The purpose of this utility model is achieved in that a kind of bi-directional synchronization stretching clip mechanism, it is characterized in that chuck is arranged on jig arm extension end in the four-bar linkage, wherein launching four-bar linkage triangular in shape is connected and composed by long jig arm, long connecting rod and pole, the place is connected with track roller at the angle hinge, and several triangle four-bar linkages connect into telescopic planar linkage structure; On the long connecting rod of each triangle four-bar linkage, be connected with short jig arm, be connected short connecting rod between the long jig arm of adjacent triangle four-bar linkage and the short jig arm, and constitute thus and launch to be tetragonal four-bar linkage.
Pole in the described expansion four-bar linkage triangular in shape is the chain structure of being made up of two chain links.
Long and short jig arm is provided with the spring that the control chuck resets.
Stretching clip mechanism of the present utility model makes planar linkage mechanism be launched gradually by initial merging phase by orbiting, and realizes the longitudinal stretching of film, and relies on the both sides track space to increase gradually and realize the cross directional stretch of film simultaneously.
Characteristics of the present utility model are: compact conformation, running are steadily, clamping force is even, draw ratio is stable, control is simple and reliable.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the utility model original state schematic diagram;
Fig. 3 is the utility model deployed condition schematic diagram.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
As Fig. 1, Fig. 2, shown in Figure 3, two chain links 3,4 of long jig arm 1, long connecting rod 2 and pole are connected to and launch four-bar linkage triangular in shape, and several triangle four-bar linkages connect into telescopic planar linkage mechanism.The place is connected with track roller 5 in leg-of-mutton corner hinges.Be connected with short jig arm 6 on the long connecting rod of each triangle four-bar linkage, be connected short connecting rod 7 between the long jig arm of short jig arm and adjacent triangle four-bar linkage, the formation expansion is tetragonal four-bar linkage thus.Lower chuck 8 is arranged on the bottom of long and short jig arm extension, upper grip 9 is located at the bottom of collet body 10, on jig arm, be provided with latch plate 11, spring 12 1 ends are connected on the latch plate, the other end is connected with collet body, collet body is connected jig arm extension upper end by bearing pin, by the control collet body folder mouth is opened, and is clamped plastic sheeting by spring reset.Pole is a chain structure, and the pole of each triangle four-bar linkage connects and composes driving-chain, drives by fluted disc and drives whole stretching clip mechanism along track 13 operations.In the starting stage, the stretching clip mechanism of planar linkage structure is contraction state, when carrying out film stretching, and the pole of active fluted disc chain drive-belt structure, the two row stretching clip mechanisms that film is clamped in drive move on two siding tracks and launch gradually, realize the longitudinal stretching of film in expansion process.Rely on the spacing of both sides clip orbit to increase gradually simultaneously, realize the cross directional stretch of film.
Claims (3)
1, a kind of bi-directional synchronization stretching clip mechanism, it is characterized in that chuck is arranged on jig arm extension end in the four-bar linkage, wherein launching four-bar linkage triangular in shape is connected and composed by long jig arm, long connecting rod and pole, the place is connected with track roller at the angle hinge, and several triangle four-bar linkages connect into telescopic planar linkage structure; On the long connecting rod of each triangle four-bar linkage, be connected with short jig arm, be connected short connecting rod between the long jig arm of adjacent triangle four-bar linkage and the short jig arm, and constitute thus and launch to be tetragonal four-bar linkage.
2, bi-directional synchronization stretching clip mechanism according to claim 1 is characterized in that the chain structure of pole for being made up of two chain links in the described expansion four-bar linkage triangular in shape.
3, bi-directional synchronization stretching clip mechanism according to claim 1 is characterized in that long and short jig arm is provided with the spring that the control chuck resets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201688363U CN201002337Y (en) | 2006-12-31 | 2006-12-31 | Bidirectional synchronization drawing clamp mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201688363U CN201002337Y (en) | 2006-12-31 | 2006-12-31 | Bidirectional synchronization drawing clamp mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201002337Y true CN201002337Y (en) | 2008-01-09 |
Family
ID=39037878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201688363U Expired - Lifetime CN201002337Y (en) | 2006-12-31 | 2006-12-31 | Bidirectional synchronization drawing clamp mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201002337Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507320A (en) * | 2011-10-25 | 2012-06-20 | 华南理工大学 | Single-power two-way stretching method and device |
| CN103600488A (en) * | 2013-10-31 | 2014-02-26 | 青岛中科华联新材料有限公司 | Bidirectional synchronous drawing clamp mechanism |
| CN107271266A (en) * | 2017-08-24 | 2017-10-20 | 长春工业大学 | A kind of thin film stretching device |
| CN109269883A (en) * | 2018-11-12 | 2019-01-25 | 凯尔测控试验系统（天津）有限公司 | It is biaxial stretch-formed in a kind of face to use width Self adapting fixture |
-
2006
- 2006-12-31 CN CNU2006201688363U patent/CN201002337Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507320A (en) * | 2011-10-25 | 2012-06-20 | 华南理工大学 | Single-power two-way stretching method and device |
| CN102507320B (en) * | 2011-10-25 | 2014-04-02 | 华南理工大学 | Single-power two-way stretching method and device |
| CN103600488A (en) * | 2013-10-31 | 2014-02-26 | 青岛中科华联新材料有限公司 | Bidirectional synchronous drawing clamp mechanism |
| CN103600488B (en) * | 2013-10-31 | 2016-04-06 | 青岛中科华联新材料股份有限公司 | A kind of bi-directional synchronization stretching pincers mechanism |
| CN107271266A (en) * | 2017-08-24 | 2017-10-20 | 长春工业大学 | A kind of thin film stretching device |
| CN109269883A (en) * | 2018-11-12 | 2019-01-25 | 凯尔测控试验系统（天津）有限公司 | It is biaxial stretch-formed in a kind of face to use width Self adapting fixture |
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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: 20080109 |
|
| EXPY | Termination of patent right or utility model |