CN202781848U - Unfolding and locating device of foaming sheet - Google Patents
Unfolding and locating device of foaming sheet Download PDFInfo
- Publication number
- CN202781848U CN202781848U CN 201220481804 CN201220481804U CN202781848U CN 202781848 U CN202781848 U CN 202781848U CN 201220481804 CN201220481804 CN 201220481804 CN 201220481804 U CN201220481804 U CN 201220481804U CN 202781848 U CN202781848 U CN 202781848U
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- China
- Prior art keywords
- foam sheet
- olive
- tension roller
- foaming sheet
- roller
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- Expired - Fee Related
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model provides an unfolding and locating device of a foaming sheet. The device comprises a calendar roller, cooling rollers, a cutter and a dragging roller, which are arranged at the rear end of an extruder in sequence; at least one olive tension roller is arranged between the extruder and the rolling roller; and locating rollers are arranged among the cooling rollers. Through the unfolding and locating device provided by the utility model, the purpose of unfolding and locating the foaming sheet is really achieved, so that the stripes of the foaming sheet are completely unfolded and the thickness of the foaming sheet is even and consistent; the foaming sheet can be cooled on the cooling rollers without excursion so that the acceptability of products is enhanced; and meanwhile, the luminosity difference existing between the upper and lower surfaces of the foaming sheet is effectively improved.
Description
Technical field
The utility model relates to mechanical equipment technical field, is specifically related to a kind of expansion positioner of polypropylene foamed sheet.
Background technology
Polypropylene foamed sheet is the focusing body that gas dispersion forms in solid polymer, to use higher products similar, owing to its higher rigidity, good mechanical property, good chemistry and heat endurance and good environmental adaptation with the preferred material that advantage becomes foamed plastics such as be easy to reclaim, be widely applied to and be used for heat insulation and amortizing packaging material etc. in the field of the high standards such as automobile, electronics, office stationary, high performance requirements.
Polypropylene foamed sheet is the material of firing that gas dispersion is formed in solid polypropylene, and then import stably in the stock mould through the extrusion molding apparatus extruder along certain uniform flow passage, and give foaming material shaped necessary briquetting pressure, make its compacting, the shape of expanded material is finalized the design and stable; And flatten, finalize the design through stack, carry out finishing through excision edge strip after the chill roll cooling of certain-length again, thereby obtain the continuous foamed sheet material that sectional dimension is more accurate, the surface is more bright, cross sectional shape is consistent.
Foam sheet requires to have surfacing, without obvious striped, soft and have a matt effect.So through the foam sheet of stock mould after out require smooth, transverse width is in full accord, the moulding material after final the side cut just can reach requirement.But because existing foam sheet is in process of production, because extruder itself and die head arrange problem, there is a small amount of striped to produce in the time of can making the foam sheet outlet mold, and because the flat-mould head cause, the intermediate portion is thicker during the foam sheet outlet mold, both sides are thinner.Although will flatten, finalize the design through stack behind the foam sheet outlet mold, but because existing stack is cylindrical, foam sheet directly enters behind outlet mold and carries out calendering formation below the stack, cause the sheet material striped to launch and finalize the design, and cause the thickness difference of foam sheet larger.In addition, the traction positioner that uses in process of production is to be combined by chill roll, cutting knife and carry-over pinch rolls substantially, after sheet material goes out die orifice, through chill roll cooling and the excision edge strip of certain-length, place carry-over pinch rolls at the front end of chill roll the power that advances is provided for sheet material first.In continuous flow procedure, the transverse width of sheet material can not be in full accord, can there be certain error, this just causes, and deflection can appear in sheet material in the process of prolonged traction, so that the both sides side cut is inhomogeneous, cut away on a limit of sheet material, and another side does not then switch to fully, causes product defective.
The utility model content
The utility model will solve above-mentioned deficiency exactly, and a kind of expansion positioner of novel foam sheet is provided, the striped of foam sheet is launched fully and the thickness of sheet material identical, and be not offset, improve the qualification rate of sheet material.
In order to reach above-mentioned effect, the utility model provides a kind of expansion positioner of foam sheet, comprise the stack of being located at successively the extruder rear end, a plurality of chill roll, cutting knife and carry-over pinch rolls, be provided with at least one Olive tension roller between described extruder and the stack, be provided with registration roller between the described chill roll.
Described Olive tension roller is connected with motor, and the inside of Olive tension roller is provided with electrically heated rod.
Described motor is for regulating the servomotor of Olive tension roller rotating speed.
Described registration roller symmetry is installed in the cross bar two ends between the two adjacent chill rolls.
Described cross bar is located between two adjacent chill rolls at two ends.
The roller number of Olive tension roller can have a plurality ofly in the utility model, is fixedly arranged on side by side between extruder and the stack, makes the bottom surface contact-making surface of foam sheet larger, effectively improves its back side luminosity.
The number of cross bar and registration roller can arrange according to need of production in the utility model, is preferably respectively establishing a cross bar from cutting knife with the chill roll at the two ends of mouthful mould is middle, and symmetry is established two registration rollers on the cross bar.
Directly take to behind the foam sheet outlet mold below the Olive tension roller, regulate the Olive tension roller rotating speed by servomotor, the stack rotating speed of its rotating speed and back is consistent.Just through there being Olive tension roller to draw, thin and sheet material striped is unified to process to foam sheet thick middle both sides when making the foam sheet outlet mold.Because the contact area of foam sheet and Olive tension roller is larger, and Olive tension roller inside is provided with heating rod and is used for the heating Olive tension roller, make foam sheet produce the contraction trace through out-of-date unlikely the cooling rapidly, thereby the striped of foam sheet is unfolded fully, and the thin defective in thick middle both sides of foam sheet also is overcome, the even thickness that reaches foam sheet is consistent, effectively improves the luminosity difference of the upper and lower surface of foam sheet existence simultaneously.Foam sheet enters the calendering formation of three stacks of back after reaching the purpose of even thickness, striped expansion again, thereby improves two major issues that occur in the existing sheet production, improves the production precision, reduces the loss.
Foam sheet is after stack flattens, provide onward impulse to move ahead and cool off at chill roll by carry-over pinch rolls, owing between adjacent two chill rolls in the two ends of chill roll, be provided with the longitudinal register roller, make foam sheet on chill roll, move ahead and be not offset along certain track.So that last cutting knife is when cutting foam sheet, the qualified of product improved on the both sides that can cut equably foam sheet.In continuous flow procedure, even the transverse gage of sheet material is not quite identical, but under the effect of longitudinal register roller, sheet material still can not be offset, but the qualification rate of Effective Raise sheet material.
So comparing with respect to prior art, the utility model has following beneficial effect:
1, the utlity model has easy to use, the characteristics of flexible operation; And simplified the structure of device, be easy to manufacturing, failure rate is low, safe and reliable, energy-conserving and environment-protective.
2, because the contact area of foam sheet and Olive tension roller is larger, and Olive tension roller inside is provided with heating rod and is used for the heating Olive tension roller, make foam sheet produce the contraction trace through out-of-date unlikely the cooling rapidly, thereby the striped of foam sheet is unfolded fully, and the even thickness that reaches foam sheet is consistent; Effectively improve simultaneously the luminosity difference of the upper and lower surface of foam sheet existence.
3, the expansion positioner that provides of the utility model has really reached the expansion and location purpose to foam sheet, makes sheet material not produce skew in the chill roll cooling, has improved the qualification rate of product.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the utility model structural representation;
Fig. 2 is the Olive tension roller structural representation in the utility model.
Among the figure: 1-bracing frame, 2-carry-over pinch rolls, 3-cutting knife, 41,42,43, the 44-chill roll, 51, the 52-cross bar, 6-registration roller, 7-stack, 8-Olive tension roller, 81-servomotor, 82-electrically heated rod.
The specific embodiment
As shown in Figure 1, a kind of expansion positioner of foam sheet, comprise the stack 7 of being located at successively on the extruder rear end bracing frame 1, four chill rolls, cutting knife 3 and carry-over pinch rolls 2, be provided with an Olive tension roller 8 between described extruder and the stack 7, between chill roll 41 and chill roll 42, and being equipped with a cross bar 51 and cross bar 52 between chill roll 43 and the chill roll 44, cross bar 51 vertically is installed with registration roller 6 with each symmetry of cross bar 52 two ends.
Be the Olive tension roller structural representation in the utility model as shown in Figure 2, the Olive tension roller 8 on the bracing frame 1 is connected with the servomotor 81 of regulating its rotating speed, and the inside of Olive tension roller 8 is provided with electrically heated rod 82.Regulate Olive tension roller 8 rotating speeds by servomotor 81, the stack rotating speed of its rotating speed and back is consistent, electrically heated rod 82 is used for heating Olive tension roller 8, makes foam sheet produce the contraction trace through out-of-date unlikely the cooling rapidly, thereby the striped of foam sheet is unfolded fully.
After foam sheet goes out die orifice, directly take to below the Olive tension roller 8, draw through Olive tension roller 8, thin and sheet material striped is unified to process to foam sheet thick middle both sides.Because the contact area of foam sheet and Olive tension roller is larger, and Olive tension roller inside is provided with electrically heated rod and is used for the heating Olive tension roller, make foam sheet produce the contraction trace through out-of-date unlikely the cooling rapidly, thereby the striped of foam sheet is unfolded fully, the even thickness that reaches foam sheet is consistent, effectively improves the luminosity difference of the upper and lower surface of foam sheet existence simultaneously.After foam sheet reaches the purpose of even thickness, striped expansion, enter again the calendering formation of the stack 7 of back.Then provide onward impulse to move ahead and cool off at chill roll by carry-over pinch rolls 2, because the effect of longitudinal register roller 6 makes foam sheet successively by chill roll 44,43,42,41, move ahead and be not offset along certain track.Last 3 pairs of foam sheets of cutting knife cut, and can cut equably the both sides of foam sheet, improve the qualification rate of product.
Above embodiment is not limited only to protection domain of the present utility model, all make amendment based on basic thought of the present utility model or change all belong to protection domain of the present utility model.
Claims (5)
1. the expansion positioner of a foam sheet, comprise the stack of being located at successively the extruder rear end, a plurality of chill roll, cutting knife and carry-over pinch rolls, it is characterized in that: be provided with at least one Olive tension roller between described extruder and the stack, be provided with registration roller between the described chill roll.
2. the expansion positioner of a kind of foam sheet according to claim 1, it is characterized in that: described Olive tension roller is connected with motor, and the inside of Olive tension roller is provided with electrically heated rod.
3. the expansion positioner of a kind of foam sheet according to claim 2 is characterized in that: described motor is for regulating the servomotor of Olive tension roller rotating speed.
4. the expansion positioner of a kind of foam sheet according to claim 1, it is characterized in that: described registration roller symmetry is installed in the cross bar two ends between the two adjacent chill rolls.
5. the expansion positioner of a kind of foam sheet according to claim 4, it is characterized in that: described cross bar is located between two adjacent chill rolls at two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220481804 CN202781848U (en) | 2012-09-20 | 2012-09-20 | Unfolding and locating device of foaming sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220481804 CN202781848U (en) | 2012-09-20 | 2012-09-20 | Unfolding and locating device of foaming sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202781848U true CN202781848U (en) | 2013-03-13 |
Family
ID=47809177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220481804 Expired - Fee Related CN202781848U (en) | 2012-09-20 | 2012-09-20 | Unfolding and locating device of foaming sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202781848U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104149297A (en) * | 2014-07-17 | 2014-11-19 | 安徽巢湖南方膜业有限责任公司 | Automatic reeled film unfolding device |
| US10525620B2 (en) | 2018-01-11 | 2020-01-07 | Zhejiang Runyang New Materials Technology Co., Ltd. | Spreading device for foaming furnace |
-
2012
- 2012-09-20 CN CN 201220481804 patent/CN202781848U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104149297A (en) * | 2014-07-17 | 2014-11-19 | 安徽巢湖南方膜业有限责任公司 | Automatic reeled film unfolding device |
| US10525620B2 (en) | 2018-01-11 | 2020-01-07 | Zhejiang Runyang New Materials Technology Co., Ltd. | Spreading device for foaming furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20130920 |