CN206623393U - Pneumatic centre of location ring structure for film inflation - Google Patents
Pneumatic centre of location ring structure for film inflation Download PDFInfo
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- CN206623393U CN206623393U CN201720120363.8U CN201720120363U CN206623393U CN 206623393 U CN206623393 U CN 206623393U CN 201720120363 U CN201720120363 U CN 201720120363U CN 206623393 U CN206623393 U CN 206623393U
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- radial direction
- inflation
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- direction rack
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Abstract
A kind of pneumatic centre of location ring structure for film inflation, include preheating oven and inflation baking oven, centre of location ring is provided between inflation baking oven and preheating oven, the centre of location is equipped with ring support, on a toroidal support multiple little gears have been arranged circumferentially along ring support, each pinion mate should be engaged with a radial direction rack, and the proximal part of every radial direction rack is fixedly connected with guide roller support, limiting roll is correspondingly provided with each guide roller support；Side is also rotatably mounted with a circular metal and turn-taked on a toroidal support, and formed with driving cog, the driving cog that circular metal is turn-taked engages the outer peripheral face that circular metal is turn-taked with all each little gears simultaneously；A radial direction rack is also with being arranged with cylinder wherein, and to parallel, the piston rod of cylinder is fixedly connected with the radial direction rack for the piston rod installation direction of cylinder and the length of the radial direction rack.The utility model high transmission accuracy, ensure that film bubble position is accurate in regulation process.
Description
Technical field
The utility model belongs to the technical field of membrane production equipment, and in particular to a kind of for the pneumatic fixed of film inflation
Position center ring structure.
Background technology
In plastic sheeting blowing process, film bubble is first run by preheating oven, is subsequently entered the inflation baking oven in downstream, is blown
Temperature inside swollen baking oven is higher by much than preheating oven, so when film bubble passes through inflation baking oven, can be softened and significantly be blown
Swollen, stretching, makes vesicle diameter drastically become big.Due to film bubble, diameter drastically becomes big between preheating oven and inflation baking oven, so
Need to allow film bubble the horizontal level of film bubble is kept accurate when entering inflation baking oven, centre of location ring is needed to use for this,
The effect of centre of location ring is that the horizontal level of film bubble is limited to the most middle position of inflation baking oven.
The existing centre of location is equipped with ring support, and more limiting rolls, the axle of each limiting roll are provided with ring support
To the arranged tangential along film bubble, film bubble is enclosed in centre by each limiting roll, thus limits the horizontal level of film bubble.But in life
During production, because the change of parameter constantly regulate, the film bubbles such as film bubble extrusion thickness, film bubble extrusion pressure, formula, blow pressure are straight
Footpath can change, and require that each limiting roll can be along the radial direction of film bubble for this（That is the radial direction of ring support）Regulation movement, to adapt to film
The change of bulb diameter.In the prior art, in order that the synchronizing moving regulation simultaneously of each limiting roll, typically uses metal bracelet each
It is driven indirectly between root limiting roll, however, because the temperature of inflation baking oven is very high, metal bracelet in the course of the work can
Expanding with heat and contract with cold by a relatively large margin occurs, metal bracelet is relaxed, transmission is asynchronous, inaccurate, causes between each limiting roll
Mobile asynchronous, inequality, and then cause the control of film bubble position inaccurate, influence the quality of production.
Utility model content
The purpose of this utility model is to overcome disadvantages mentioned above and provide a kind of pneumatic centre of location for film inflation
Ring structure, its high transmission accuracy, ensure that film bubble position is accurate in regulation process.
Its purpose can be realized by following scheme：The pneumatic centre of location ring structure for being used for film inflation includes preheating
Baking oven and inflation baking oven, inflation baking oven are located at the downstream of preheating oven, are provided between inflation baking oven and preheating oven in positioning
Thimble, the centre of location are equipped with ring support, and it is mainly characterized by, on a toroidal support along the uniform cloth of circumference of ring support
Multiple little gears are equipped with, the axial direction of each little gear is vertical, and each pinion mate should be engaged with a radial direction rack, each radial direction
The length of rack is fixedly connected with guide roller support to the radial arrangement along ring support, the proximal part of every radial direction rack, each
Limiting roll is correspondingly installed, the axial direction of each limiting roll is for horizontal direction and perpendicular to corresponding radial direction rack on guide roller support
It is long to；Side is also rotatably mounted with a circular metal and turn-taked on a toroidal support, the central point and ring that circular metal is turn-taked
Both the central point of shape support horizontal levels are identical, and the outer peripheral face that circular metal is turn-taked is turn-taked formed with driving cog, circular metal
Driving cog simultaneously engaged with all each little gears；A radial direction rack, which is also matched somebody with somebody, wherein is arranged with cylinder, the piston of cylinder
For the length of bar installation direction and the radial direction rack to parallel, the piston rod of cylinder is fixedly connected with the radial direction rack.
The utility model has advantages below and effect：
The utility model promotes a wherein radial direction rack movement, root radial direction rack to pass through corresponding small tooth using cylinder
Wheel promotes circular metal to turn-take rotations, and circular metal, which is turn-taked, drives remaining each little gear synchronous axial system, each little gear drive
Corresponding each radial direction rack synchronous radial motion, and then drive the radial direction of each guide roller support and Ge Gen limiting rolls along ring support to carry out
Synchronously move radially, make the radial distance between all limiting rolls and ring support center that synchronous, equivalent change occur, thus
The change of vesicle diameter can be adapted in time.Due to being turn-taked using circular metal and rack and pinion engagement structure is driven, keep away
Relaxation that traditional chain drive structure brings is exempted from, the problem of transmission accuracy is not high, it is ensured that film bubble position is accurate, and then ensures
The inflation quality of film bubble, be advantageous to make film bubble respectively to uniform inflation.
Brief description of the drawings
Fig. 1 is the schematic view of the mounting position of centre of location ring.
Fig. 2 is the overlooking the structure diagram of centre of location ring.
Fig. 3 is the dimensional structure diagram of centre of location ring.
Embodiment
Shown in Fig. 1, the pneumatic centre of location ring structure for being used for film inflation includes preheating oven 11 and inflation baking oven
12, inflation baking oven 12 is located at the downstream of preheating oven 11, and centre of location ring is provided between inflation baking oven 11 and preheating oven 12
2.Shown in Fig. 2, Fig. 3, centre of location ring 2 is provided with ring support 21, along the uniform cloth of circumference of ring support on ring support 21
Multiple little gears 23 are equipped with, the axial direction of each little gear 23 is vertical, and each little gear 23 has been engaged a radial direction rack 24,
The length of each radial direction rack 24 is to the radial arrangement along ring support 21（So referred to as radial direction rack）, every radial direction rack 24
Proximal part be fixedly connected with guide roller support 25, limiting roll 22, each limiting roll 22 are correspondingly installed on each guide roller support 25
Axial direction for horizontal direction and perpendicular to corresponding radial direction rack 24 length to；Also it is rotatably mounted above ring support 21
There is a circular metal to turn-take 26, circular metal turn-take 26 both central point and the central point of ring support 21 horizontal level phase
Together, circular metal turn-take 26 outer peripheral face formed with driving cog 27, circular metal turn-take 26 driving cog 27 simultaneously with it is all
Individual little gear 23 engages；A radial direction rack 24, which is also matched somebody with somebody, wherein is arranged with cylinder 28, the installation direction of piston rod 281 of cylinder 28
With the length of the radial direction rack 24 to parallel, the piston rod 281 of cylinder is fixedly connected with the radial direction rack 24.
Above-described embodiment course of work and principle are as follows：
Shown in Fig. 1, Fig. 2, Fig. 3, in the extrusion of film bubble 8, if the diameter change of film big gun 8, cylinder 28 can be started
A driving wherein radial direction rack 24 moves, and the root radial direction rack 24 promotes circular metal to turn-take 26 by corresponding little gear 23
Rotate, circular metal is turn-taked 26 drives remaining each synchronous axial systems of little gear 23, and each little gear 23 drives corresponding each radial teeth
24 synchronous radial motion of bar, and then drive each guide roller support 25 and radial direction of the Ge Gen limiting rolls 22 along ring support 21 to synchronize
Move radially, make synchronous, equivalent the change of radial distance generation between all limiting rolls 22 and the center of ring support 21.
Claims (1)
1. a kind of pneumatic centre of location ring structure for film inflation, include preheating oven and inflation baking oven, inflation baking oven
Positioned at the downstream of preheating oven, centre of location ring is provided between inflation baking oven and preheating oven, the centre of location is equipped with annular
Support, it is characterised in that：On a toroidal support along multiple little gears that have been arranged circumferentially of ring support, the axle of each little gear
To be vertical, each pinion mate should be engaged with a radial direction rack, and the length of each radial direction rack is to the footpath along ring support
To arrangement, the proximal part of every radial direction rack is fixedly connected with guide roller support, and limiting roll is correspondingly provided with each guide roller support,
The axial direction of each limiting roll be horizontal direction and perpendicular to corresponding radial direction rack length to；Side is also rotatable on a toroidal support
Ground is provided with a circular metal and turn-taked, both the central point that circular metal is turn-taked and central point of ring support horizontal level phase
Together, the outer peripheral face that circular metal is turn-taked formed with driving cog, driving cog that circular metal is turn-taked simultaneously with all each little gears
Engagement；A radial direction rack is also with being arranged with cylinder wherein, the piston rod installation direction of cylinder and the length of the radial direction rack to
Parallel, the piston rod of cylinder is fixedly connected with the radial direction rack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720120363.8U CN206623393U (en) | 2017-02-09 | 2017-02-09 | Pneumatic centre of location ring structure for film inflation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720120363.8U CN206623393U (en) | 2017-02-09 | 2017-02-09 | Pneumatic centre of location ring structure for film inflation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206623393U true CN206623393U (en) | 2017-11-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720120363.8U Active CN206623393U (en) | 2017-02-09 | 2017-02-09 | Pneumatic centre of location ring structure for film inflation |
Country Status (1)
| Country | Link |
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| CN (1) | CN206623393U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111016124A (en) * | 2019-12-19 | 2020-04-17 | 广东金明精机股份有限公司 | Device and method for accurately controlling diameter of film bubble |
-
2017
- 2017-02-09 CN CN201720120363.8U patent/CN206623393U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111016124A (en) * | 2019-12-19 | 2020-04-17 | 广东金明精机股份有限公司 | Device and method for accurately controlling diameter of film bubble |
| CN111016124B (en) * | 2019-12-19 | 2021-09-28 | 广东金明精机股份有限公司 | Device and method for accurately controlling diameter of film bubble |
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