CN203228347U - Amplitude expander for vertical foaming furnace - Google Patents
Amplitude expander for vertical foaming furnace Download PDFInfo
- Publication number
- CN203228347U CN203228347U CN 201320111266 CN201320111266U CN203228347U CN 203228347 U CN203228347 U CN 203228347U CN 201320111266 CN201320111266 CN 201320111266 CN 201320111266 U CN201320111266 U CN 201320111266U CN 203228347 U CN203228347 U CN 203228347U
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- roller
- nip rolls
- foaming
- expander
- vertical
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Abstract
The utility model discloses an amplitude expander for a vertical foaming furnace. The amplitude expander is characterized by comprising a flattening roller and a positioning roller, the flattening roller is a non-equant straight roller, and the middle part is provided with a convex camber surface; the flattening roller is capable of moving along horizontal direction and vertical direction in the furnace body and capable of rotating around self axle; the positioning roller is an equant straight roller or a non-equant straight roller and below the flattening roller, and capable of rotating around self axis under the driving of a motor, and capable of horizontally moving and moving up and down; two ends of the flattening roller and the positioning roller are respectively fixedly connected with outer walls at left side and right side of the vertical foaming furnace body through a flattening roller base and a positioning roller base. Compared with the universal amplitude expander for the existing foaming furnace, the amplitude expander disclosed by the utility model is simple in structure and convenient for operation, and the surface of a foaming master slice cannot be damaged, the product production efficiency and quality are improved.
Description
Technical field
The utility model relates to a kind of vertical foaming stove expander, refers in particular to vertical polyolefin foaming stove expander.
Background technology
The TPO plastic applications is in extensive range, has good physics, chemistry and mechanical property, and its toughness, flexibility and shock-absorbing capacity are good, and has electric insulation, character such as heat insulation, is widely used in fields such as packing, chemical industry, building.The TPO foamed plastics is widely used, and also is one of foamed plastics that successfully makes the earliest.As far back as nineteen forty-one, du pont company just utilizes the nitrogen method successfully to prepare the LDPE foamed plastics.Through the development of decades, foamed polyolefine plastic is full-fledged, has realized variation in kind and application facet.Along with deepening continuously and the progress of foaming technique of theoretical research, foamed plastics is having significant progress aspect output and the quality.
At present crosslinking polyolefin foaming technology mainly be at first polyolefin raw material and various auxiliary agent are mediated, granulation, add extruder and plastify, obtain the polyolefin master slice that each component mixes, foam by foaming furnace then.General foaming furnace mainly contains two kinds now, and a kind of is to be preheating section and foaming section with the horizontal stove, and a kind of is to allow the foaming master slice at first by one section horizontal stove, foams in vertical furnace then.In the second way, horizontal stove mainly provides the preheating of polyolefin master slice, after the interval heating by different temperatures, makes the master slice that arrives vertical furnace have certain temperature, is conducive to the carrying out of foaming, and improves foaming quality.Vertical furnace is master slice foaming section, is that station is finished in main foaming.After master slice entered vertical furnace, blowing agent decomposed under high temperature action, and bubble is scattered in and forms expanded polyolefin in the master slice.
When the polyolefin master slice foams in vertical furnace, the expansion on thickness and the width can take place, and this moment, master slice was in the semi-molten state, if untimely expansion, the overlapped adhesion of meeting influences the quality of finished product, so need launch timely by expander between the sheet material.
General expander is generally the four-roller type expander that left-right symmetry is arranged in body of heater at present, and the sheet material after the foaming by relatively rotating of roller, is finished expansion process, as shown in Figure 1 through in the middle of two rollers.This expander is very high to operator's qualification requirement, and owing to be to realize launching by the pulling force that gives the sheet material left and right directions, so can cause the orientation of macromolecular chain on left and right directions, influences the uniformity of foam performance.Deformation also takes place in sheet material easily under the pulling force effect, variable thickness causes, and influences dimensional homogeneity.In addition, the end surface of roller is long-pending less, and with rubbing that sheet material does not stop, can cause the damage of foamed material, influence surface quality.
Summary of the invention
For overcoming the deficiencies in the prior art, the utility model provides a kind of master slice that guarantees to improve the shortcoming of present expander, the vertical foaming stove expander that improves the quality of products when realizing good the expansion.
The utility model is realized by following means:
A kind of vertical foaming stove expander, it is characterized in that: comprise a nip rolls and a registration roller, described nip rolls is roller straight such as a non-grade, and there is the cambered surface of projection the centre, nip rolls can move in the inner along continuous straight runs of body of heater, vertical direction, also can rotate along self axis; Described registration roller is isometrical straight roller or roller straight such as non-, is positioned at the nip rolls below, under the drive of motor, can rotate around self axle center, also can level, move up and down; The two ends of described nip rolls, registration roller are fixedly connected on the foaming furnace outer wall of the vertical foaming furnace body left and right sides by nip rolls pedestal, registration roller pedestal respectively.
Described nip rolls and registration roller are stainless steel, aluminium alloy, titanium alloy or high-temperature resistant rubber material, can anti-high temperature more than 250 ℃.
Operation principle of the present invention is: in process of production, the master slice that will foam passes between bowed roller and registration roller.When the foaming master slice begins to foam under the foaming furnace high temperature action, it is big that the width size becomes, can move forward nip rolls this moment, registration roller is mobile backward simultaneously, nip rolls is contacted, because nip rolls has the surface of arc, so can be with the foaming master slice from middle part jack-up with the foaming master slice, make the foaming master slice launch to two ends, folding and adhesion do not take place.The effect of registration roller be by with the relative motion of nip rolls, make the foaming master slice press close to nip rolls, the convenient expansion.
Compare with the expander that present foaming furnace is general, the beneficial effects of the utility model are: simple in structure, easy to operate, to the basic not damaged in foaming master slice surface, improved production efficient and quality.
Description of drawings
Fig. 1 is present general four-roller type expander work schematic diagram;
Fig. 2 is the work schematic diagram of the utility model expander;
Among the figure, 1 foaming furnace outer wall, 2 four roller expander pedestals, 3 four roller expanders, 4 foaming master slices, 5 registration roller pedestals, 6 nip rolls pedestals, 7 nip rolls, 8 registration rollers.
The specific embodiment
Below in conjunction with accompanying drawing and the specific embodiment, the utility model is described further.
As shown in Figure 2, vertical foaming stove of the present utility model is made up of a nip rolls 7 and a registration roller 8 with expander, and described nip rolls 7 is roller straight such as a non-grade, and there is the cambered surface of projection the centre, and two ends are connected the vertical furnace body of heater left and right sides; Described nip rolls can move in the inner along continuous straight runs of body of heater, vertical direction, also can rotate along self axis, and rotation direction is identical with the master slice direction of advance.Described registration roller 8 is positioned at nip rolls 7 belows, can be isometrical straight roller, also can the isometrical straight roller of right and wrong.Described registration roller 8 two ends are connected in the vertical foaming furnace body left and right sides, are positioned at nip rolls 7 belows, under the drive of motor, can rotate around self axle center, also can level, move up and down.
The master slice 4 that foams runs into high temperature and begins foaming in vertical furnace, move forward nip rolls 7 this moment, and registration roller 8 is mobile backward, all contact with foaming master slice 4, and around self axis rotation, consistent with foaming master slice 4 throughput directions.Under the relativity of two rollers, foaming master slice 4 sticks on nip rolls 7 surfaces, and under the effect of nip rolls 7 curved surfaces, foaming master slice 4 middle parts by jack-up folding and adhesion can not taken place.This expander is simple to operate, and is easy to use, can effectively foaming master slice 4 be launched, and to the basic not damaged in foaming master slice 4 surfaces, improve production efficient and quality.
Claims (2)
1. vertical foaming stove expander, it is characterized in that: comprise a nip rolls (7) and a registration roller (8), described nip rolls (7) is roller straight such as a non-grade, there is the cambered surface of projection the centre, nip rolls (7) can move in the inner along continuous straight runs of body of heater, vertical direction, also can rotate along self axis; Described registration roller (8) is isometrical straight roller or roller straight such as non-, is positioned at nip rolls (7) below, under the drive of motor, can rotate around self axle center, also can level, move up and down; The two ends of described nip rolls (7), registration roller (8) are fixedly connected on the foaming furnace outer wall (1) of the vertical foaming furnace body left and right sides by nip rolls pedestal (6), registration roller pedestal (5) respectively.
2. vertical foaming stove expander according to claim 1 is characterized in that: described nip rolls (7) and registration roller (8) are stainless steel, aluminium alloy, titanium alloy or high-temperature resistant rubber material, can anti-high temperature more than 250 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320111266 CN203228347U (en) | 2013-03-12 | 2013-03-12 | Amplitude expander for vertical foaming furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320111266 CN203228347U (en) | 2013-03-12 | 2013-03-12 | Amplitude expander for vertical foaming furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203228347U true CN203228347U (en) | 2013-10-09 |
Family
ID=49284495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320111266 Expired - Fee Related CN203228347U (en) | 2013-03-12 | 2013-03-12 | Amplitude expander for vertical foaming furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203228347U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10525620B2 (en) | 2018-01-11 | 2020-01-07 | Zhejiang Runyang New Materials Technology Co., Ltd. | Spreading device for foaming furnace |
-
2013
- 2013-03-12 CN CN 201320111266 patent/CN203228347U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131009 Termination date: 20210312 |