CN101347985B - Crosslinking polyolefin foaming stove - Google Patents
Crosslinking polyolefin foaming stove Download PDFInfo
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- CN101347985B CN101347985B CN2008102120248A CN200810212024A CN101347985B CN 101347985 B CN101347985 B CN 101347985B CN 2008102120248 A CN2008102120248 A CN 2008102120248A CN 200810212024 A CN200810212024 A CN 200810212024A CN 101347985 B CN101347985 B CN 101347985B
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Abstract
The invention discloses a cross-linking polyolefin foam oven, comprising a horizontal oven, a vertical oven and a feeding traction device. The horizontal oven is a split type structure and consists of a plurality of segments of independent small hearths, and a certain gap is kept between two neighboring small hearths, the gap is provided with a cooling wind pipe, the feeding traction device is arranged at the entrance of the first small hearth, the vertical oven is arranged below the exit of the last small hearth, the corner conjunction between the exit of the last small hearth and the entrance of the vertical oven is provided with the cooling wind pipe. In the foam oven, continuous heating of the sheet pre-heating segment is replaced by intermitted heating, so that the heat inside the vertical oven can be prevent from entering the horizontal oven and influencing the temperature control in the horizontal oven. Two sides of the sheet can be cooled in the process of intermitted heating,thus reducing the temperature difference between the two sides of the sheet and the middle and increasing the rate of finished products.
Description
Technical field
The present invention relates to cross-linked polyolefin coiled material production equipment, particularly crosslinking polyolefin foaming stove.
Background technology
Existing crosslinking polyolefin foaming stove is combined by horizontal stove and vertical furnace, and whole foaming furnace is the angle square shape.
In Chinese patent CN2790731Y, the burner hearth of horizontal stove is the integral body that connects before and after, the burner hearth of horizontal stove is terminal directly to be communicated with the burner hearth top of vertical furnace, the foaming furnace of this structure has following shortcoming: because vertical furnace has stack effect, hot-air rises rapidly in vertical furnace, and horizontal stove and vertical furnace are connected as a single entity, form the exhausting effect, heat reciprocal influence in vertical furnace and the horizontal stove, temperature in the horizontal stove can't accurately be controlled, sheet material is preheating well in horizontal stove, enters in the vertical furnace also accurately foaming and setting, and yield rate is low.
In Chinese patent CN1799809A, the burner hearth of horizontal stove is separated by a plurality of dividing plates, not the integral body that connects before and after one, though this structure can reduce the exhausting effect, prevent that to a certain extent the heat in the vertical furnace from entering in the horizontal stove, influence the temperature control in the horizontal stove, but the foaming furnace of this kind structure still has following deficiency: sheet material is heating continuously in horizontal stove, does not have cooling procedure, in continuous heating process, the both sides of sheet material are heated soon than the centre, and after sheet material entered vertical furnace, both sides are foaming earlier easily, the both sides of sheet material form crimping easily in foaming process, do not open, cause waste product, especially the above sheet of 5mm.
Summary of the invention
For addressing the above problem, the purpose of this invention is to provide a kind of crosslinking polyolefin foaming stove, with The intermittent heating sheet material is carried out preheating, the heat that can prevent vertical furnace and horizontal stove inside influences each other, and the both sides of sheet material are cooled off in the process of intermittently heating, reduce the both sides and the middle temperature difference of sheet material, improve yield rate.
For achieving the above object, the present invention is by the following technical solutions:
A kind of crosslinking polyolefin foaming stove comprises horizontal stove, vertical furnace and charging draw-gear, and the sheet material of foaming usefulness is sent in the horizontal stove by the charging draw-gear; Described horizontal stove is for dividing body structure, rearrange by three sections independently little burner hearths, leave certain space between the little burner hearth of two neighboring sections, be provided with cooling duct in this space, described charging draw-gear is arranged on the epistome of going into of first section little burner hearth, described vertical furnace is arranged on the outlet below of the little burner hearth of the last section, this vertical furnace separates with the last section of horizontal stove port thorax, corner between the outlet of the little burner hearth of the last section and the vertical furnace inlet is provided with cooling duct, and described each cooling duct is arranged along sheet material the right and left; The inside of the little burner hearth of described the last section is provided with cooling duct along sheet material the right and left.
Described crosslinking polyolefin foaming stove is characterized in that: described cooling duct is connected with air-cooler.
The present invention has following positive beneficial effect:
In technical scheme of the present invention, horizontal stove is made up of plurality of sections port thorax, the latter end burner hearth of horizontal stove separates with the burner hearth of vertical furnace, thereby prevents that the thermal current that vertical furnace rises from directly entering in the latter end burner hearth of horizontal stove, influences the accurate control of horizontal stove internal material preheat temperature.
Because horizontal stove is for dividing body structure, be spaced by the independently little burner hearth of multistage and form, so horizontal stove is with The intermittent heating sheet material to be carried out preheating, the cooling duct that is provided with on the sheet material both sides, can make the both sides of sheet material in the process of intermittently heating, be able to the appropriateness cooling, reduce the both sides and the middle temperature difference of sheet material, avoid causing both sides foaming earlier in vertical furnace of sheet material because of excessive temperature differentials, make and improve yield rate by the sheet material of different size accurate foaming and setting in continuous industry production.
Description of drawings
Fig. 1 is the structural representation of one embodiment of the invention.
Fig. 2 is the vertical view of Fig. 1.
The specific embodiment
Number in the figure
1 unwinding rack, 2 charging draw-gears, 3 cyclic conveyors
4 sheet materials, 5 air-coolers, 6 expanding units
7 vertical furnaces, 8 observation windows, 9 discharging deflector rolls
10 felt wrapped rolls, 11 discharging drawing roller, the 12 dischargings roller of rectifying a deviation
13 rolling carry-over pinch rolls, 14 rolling framves, 15 little burner hearths
16 port thoraxes, 17 port thoraxes, 18 cooling ducts
19 cooling ducts, 20 cooling ducts, 21 cooling ducts
Please refer to Fig. 1, Fig. 2, the present invention is a kind of crosslinking polyolefin foaming stove, comprises horizontal stove, vertical furnace and charging draw-gear, and the sheet material of foaming usefulness is sent in the horizontal stove by the charging draw-gear; Horizontal stove is rearranged by the independently little burner hearth of multistage for dividing body structure, and in the present embodiment, the quantity of little burner hearth is three, and these three port thoraxes 15,16,17 are arranged at interval.
Leave certain space between the little burner hearth of two neighboring sections, charging draw-gear 2 is arranged on the epistome of going into of first section port thorax 15, vertical furnace 7 is arranged on the outlet below of the last section port thorax 17, this vertical furnace 7 separates with the last section port thorax 17, be provided with a pair of cooling duct 18 in the space between the port thorax 15,16, be provided with a pair of cooling duct 19 in the space between the port thorax 16,17.
Corner between the outlet of the last section port thorax 17 and the inlet of vertical furnace 7 is provided with a pair of cooling duct 20.The inside of the last section port thorax 17 is provided with a pair of cooling duct 21.
Each above-mentioned cooling duct 18,19,20,21 is arranged along the right and left of sheet material 4 respectively.Each cooling duct all is connected with air-cooler 5.The sidewall of vertical furnace 7 is provided with observation window 8.
The corollary equipment of crosslinking polyolefin foaming stove of the present invention comprises, unwinding rack 1, charging draw-gear 2, cyclic conveyor 3.Unwinding rack 1 is by bearing, rotating shaft and brake block are formed, charging draw-gear 2 is made up of the rotation roller of paired setting, cyclic conveyor 3 is by conveyer belt, rotating cylinder is formed, the conveyer belt of cyclic conveyor 3 is extended to the turning joining place of the last section port thorax 17 and vertical furnace 7 always by the inlet of first section port thorax 15, be provided with expanding unit 6 in the inside of vertical furnace 7, expanding unit 6 is made of the cylinder of a pair of hollow belt cooling system, cylinder is by the mechanical driving device driven rotary, cylinder forms the clamping shape to foam sheet, be provided with a pair of discharging deflector roll 9 in the bottom of vertical furnace 7, be provided with two pairs of felt wrapped rolls 10 in the exit of vertical furnace, be two pairs of discharging drawing roller 11 subsequently, four dischargings roller 12 of rectifying a deviation is rolling carry-over pinch rolls 13 and rolling frame 14 then successively.
During production, with crosslinking with radiation polyalkene foaming rolling base material pack in the unwinding rack 1, be fed through in each section port thorax 15,16,17 of horizontal stove through charging draw-gear 2, cyclic conveyor 3, the port thorax 17 of horizontal stove latter end separates with the burner hearth of vertical furnace 7, thereby prevent that the inner thermal currents that rise of vertical furnace 7 from directly entering in the port thorax 17 with the horizontal stove latter end, influence port thorax 17 temperature inside and control.
Because horizontal stove is for dividing body structure, be spaced by the independently little burner hearth of multistage and form, so horizontal stove is with The intermittent heating sheet material to be carried out preheating, the cooling duct that is provided with on the sheet material both sides, can make the both sides of sheet material in the process of intermittently heating, be able to the appropriateness cooling, reduce the both sides and the middle temperature difference of sheet material 4, avoid causing both sides foaming earlier in vertical furnace 7 of sheet material because of excessive temperature differentials, make and improve yield rate by the sheet material 4 of different size accurate foaming and setting in continuous industry production.Intermittently heat by each section of horizontal stove port thorax, and cooling at the intermittence of cooling duct, sheet material 4 is progressively heated, until cyclic conveyor 3 ends, under the gravity effect, sheet material 4 freely hangs in the vertical furnace 7 that hangs down, this moment, temperature reached the stage of foaming, be provided with expanding unit 6 in the vertical furnace 7, under the clamping of expanding unit 6, sheet material 4 stretches " expansion " along three-dimensional, the sheet material 4 smooth-going ground operations downwards after the foaming, lower opening from vertical furnace 7 under 9 guide effects of discharging deflector roll is come out, then, through felt wrapped roll 10 press polish, under the draw of discharging drawing roller 11, walk around four dischargings rectify a deviation roller 12 and rolling carry-over pinch rolls 13, at last by 14 rollings of rolling frame.
Claims (2)
1. a crosslinking polyolefin foaming stove comprises horizontal stove, vertical furnace and charging draw-gear, and the sheet material of foaming usefulness is sent in the horizontal stove by the charging draw-gear; It is characterized in that: described horizontal stove is for dividing body structure, rearrange by three sections independently little burner hearths, leave certain space between the little burner hearth of two neighboring sections, be provided with cooling duct in this space, described charging draw-gear is arranged on the epistome of going into of first section little burner hearth, described vertical furnace is arranged on the outlet below of the little burner hearth of the last section, this vertical furnace separates with the last section of horizontal stove port thorax, corner between the outlet of the little burner hearth of the last section and the vertical furnace inlet is provided with cooling duct, and described each cooling duct is arranged along sheet material the right and left; The inside of the little burner hearth of described the last section is provided with cooling duct along sheet material the right and left.
2. crosslinking polyolefin foaming stove as claimed in claim 1 is characterized in that: described cooling duct is connected with air-cooler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102120248A CN101347985B (en) | 2008-09-12 | 2008-09-12 | Crosslinking polyolefin foaming stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102120248A CN101347985B (en) | 2008-09-12 | 2008-09-12 | Crosslinking polyolefin foaming stove |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101347985A CN101347985A (en) | 2009-01-21 |
| CN101347985B true CN101347985B (en) | 2010-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008102120248A Active CN101347985B (en) | 2008-09-12 | 2008-09-12 | Crosslinking polyolefin foaming stove |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102152483A (en) * | 2010-12-15 | 2011-08-17 | 滁州杰事杰新材料有限公司 | Plasticizing and molding method for thermoplastic light planks |
| CN105365144A (en) * | 2014-09-15 | 2016-03-02 | 湖北祥源新材科技有限公司 | Crosslinking polyolefin foaming furnace |
| CN105751422A (en) * | 2016-05-09 | 2016-07-13 | 湖北祥源新材科技股份有限公司 | Foaming furnace |
| JP6536611B2 (en) * | 2017-03-24 | 2019-07-03 | カシオ計算機株式会社 | Expansion device and stereoscopic image forming system |
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2008
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| CN101347985A (en) | 2009-01-21 |
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