CN101648437B - Extrusion device for rigid polyvinyl chloride sheets - Google Patents
Extrusion device for rigid polyvinyl chloride sheets Download PDFInfo
- Publication number
- CN101648437B CN101648437B CN2008100225917A CN200810022591A CN101648437B CN 101648437 B CN101648437 B CN 101648437B CN 2008100225917 A CN2008100225917 A CN 2008100225917A CN 200810022591 A CN200810022591 A CN 200810022591A CN 101648437 B CN101648437 B CN 101648437B
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- press roll
- extrusion device
- pressure roller
- lower compression
- sheets
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- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention provides an extrusion device for rigid polyvinyl chloride sheets and relates to an extrusion formation processing device for chemical engineering sheets. The extrusion device comprises a machine frame, an upper press roll and a lower press roll, wherein the upper press roll and the lower press roll deflect 0.5 to 5 degrees relative to the central lines of respective axes on the horizontal plane; and the deflection directions of the upper press roll and the lower press roll are opposite. In the extrusion device, a scheme of axial cross and intermediate altitude is adopted, so that the thickness of the sheets calendered and extruded is uniform and consistent. The upper press roll and the lower press roll deflect 0.5 to 5 degrees relative to the central lines of respective axes on the horizontal plane first to allow the two axes to enter a crossing state, and the position of the central point is unchanged after the two axes are crossed, so that gaps between both ends of the upper press roll and the lower press roll are widened and the discharging gap is changed. The deflection angles of the upper press roll and the lower press roll are the same, so although the linear velocities of the sheets 8 (as shown in the figure 2) on both sides of the same plane are different, the walking velocity is compensated and the thickness of the sheets 8 is made uniform and consistent because the linear velocities on the opposite plane are different.
Description
Technical field
The present invention relates to a kind of chemical industry sheet material extrusion molding processing unit (plant), relate in particular to improvement extrusion device.
Background technology
Rigid polyvinyl chloride sheets is widely used in packing, decoration field, comprises packaging for foodstuff, medical packaging, instrument packing, clothes and toy packaging etc.The application of this product has proposed following parameter request to producing this product, and the one, dimensional requirement mainly is width, thickness deviation requirement; The 2nd, appearance requirement; The 3rd, mechanical and physical performance.Wherein dimensional requirement seems simply, but the sheet material finished product often occurs in the discharging problem of uneven thickness in a lateral direction in actual production process, i.e. thick middle, and both sides are thin.To this, we analyze discovery, when the reason that causes this problem is calendering, upper and lower roller is exerted pressure to material, and material produces reaction force to roller, makes roller produce distortion, as shown in Figure 4, depression 11 appears in the roller middle part, causes product to produce the phenomenon that the middle part is thick, both sides are thin thus on cross section.
Summary of the invention
The present invention is directed to above problem, provide a kind of, thereby make the extrusion device for rigid polyvinyl chloride sheets of finished product sheet thickness uniformity by the strain of counteracting roller when rolling.
Technical scheme of the present invention is: comprise frame, go up pressure roller, go up pressure roller, lower compression roller 0.5～5 ° of horizontal plane upper deflecting, makes diaxon become crossing condition with respect to the center line of axis separately that after diaxon intersected, center position was constant; Last pressure roller, lower compression roller yawing moment are opposite; The angle of upper and lower pressure roller deflection is identical.
Gap between last pressure roller, the lower compression roller is 0.25～3mm.
Last pressure roller, lower compression roller link to each other with frame by debugging bindiny mechanism respectively.
The roll surface of last pressure roller, lower compression roller is mid diameter and is slightly larger than the dolioform of two ends diameter.
The present invention adopts axle intersection, medium-altitude scheme, the thickness uniformity of the sheet material that feasible calendering is extruded.At first, with upper and lower pressure roller with respect to the center line of axis separately in the enterprising horizontal deflection of horizontal plane, make diaxon become crossing condition, after two axial lines was intersected, center position was constant, has increased the gap at upper and lower pressure roller two ends, makes the discharging gap produce variation.Because the angle of upper and lower pressure roller deflection is identical,,, make the thickness uniformity of finished product sheet material 8 because also difference of opposing face linear velocity compensates the speed of travel although sheet material 8 (as shown in Figure 2) is gone up the linear velocity difference of both sides with one side like this.
Description of drawings
Fig. 1 is a structural representation of the present invention
1 is to go up pressure roller, the 2nd, last pressure roller spindle nose, the 3rd, adjusted Connection Block, the 4th, frame, the 5th, lower compression roller spindle nose, the 6th, following adjusting Connection Block, the 7th, lower compression roller among the figure;
Fig. 2 is the vertical view of Fig. 1
8 is sheet materials among the figure;
Fig. 3 is the structural representation of another embodiment of the present invention
10 is that the roll surface middle part bloats the position among the figure;
Fig. 4 is the schematic diagram of background technology situation of the present invention
11 depressions among the figure.
The specific embodiment
The present invention comprises frame 4, goes up pressure roller 1, lower compression roller 7 as shown in Figure 1, 2, and the last pressure roller spindle nose 2 of last pressure roller 1 flexibly connects by adjusted Connection Block 3 with frame 4; The lower compression roller spindle nose 5 of lower compression roller 7 flexibly connects by regulating Connection Block 6 down with frame 4; 0.5～5 ° of horizontal plane upper deflecting, last pressure roller 1, lower compression roller 7 yawing moments are opposite with respect to the center line of axis separately for last pressure roller 1, lower compression roller 7.Gap between last pressure roller 1, the lower compression roller 7 is 0.25～3mm.
As shown in Figure 3, the present invention can also be the roll surface setting of going up pressure roller 1, lower compression roller 7 mid diameter and is slightly larger than the dolioform of two ends diameter.The roll surface middle part bloats position 10 in order to compensate pressure roller 1, lower compression roller 7 because of being out of shape the amount of deflection error that produces.
Claims (4)
1. an extrusion device for rigid polyvinyl chloride sheets comprises frame, goes up pressure roller, lower compression roller, it is characterized in that, last pressure roller, lower compression roller with respect to the center line of axis separately 0.5～5 ° of horizontal plane upper deflecting, make diaxon become crossing condition, after diaxon intersected, center position was constant; Last pressure roller, lower compression roller yawing moment are opposite; The angle of upper and lower pressure roller deflection is identical.
2. a kind of extrusion device for rigid polyvinyl chloride sheets according to claim 1 is characterized in that, the gap between last pressure roller, the lower compression roller is 0.25～3mm.
3. a kind of extrusion device for rigid polyvinyl chloride sheets according to claim 1 is characterized in that, last pressure roller, lower compression roller link to each other with frame by debugging bindiny mechanism respectively.
4. according to claim 1,2 or 3 described a kind of extrusion device for rigid polyvinyl chloride sheets, it is characterized in that the roll surface of last pressure roller, lower compression roller is mid diameter and is slightly larger than the dolioform of two ends diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100225917A CN101648437B (en) | 2008-08-14 | 2008-08-14 | Extrusion device for rigid polyvinyl chloride sheets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100225917A CN101648437B (en) | 2008-08-14 | 2008-08-14 | Extrusion device for rigid polyvinyl chloride sheets |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101648437A CN101648437A (en) | 2010-02-17 |
| CN101648437B true CN101648437B (en) | 2011-06-15 |
Family
ID=41670817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100225917A Expired - Fee Related CN101648437B (en) | 2008-08-14 | 2008-08-14 | Extrusion device for rigid polyvinyl chloride sheets |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101648437B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105437488A (en) * | 2015-11-23 | 2016-03-30 | 惠州市高盛达机械设备有限公司 | Axial cross type press roll extruding machine and axial cross type rolling process |
| CN108099083A (en) * | 2017-12-25 | 2018-06-01 | 福州福启橡塑有限公司 | A kind of sheet rubber extrusion molding production line |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4658621A (en) * | 1983-12-22 | 1987-04-21 | Sulzer-Escher Wyss Ag | Rolling apparatus |
| CN201272014Y (en) * | 2008-08-14 | 2009-07-15 | 李文和 | Extrusion apparatus for hard polychloroethylene sheet material |
-
2008
- 2008-08-14 CN CN2008100225917A patent/CN101648437B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4658621A (en) * | 1983-12-22 | 1987-04-21 | Sulzer-Escher Wyss Ag | Rolling apparatus |
| CN201272014Y (en) * | 2008-08-14 | 2009-07-15 | 李文和 | Extrusion apparatus for hard polychloroethylene sheet material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101648437A (en) | 2010-02-17 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20110615 Termination date: 20110814 |