CN100360299C - Method and equipment for cooling and shaping extruded plastic shaped section - Google Patents
Method and equipment for cooling and shaping extruded plastic shaped section Download PDFInfo
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- CN100360299C CN100360299C CNB2004100853462A CN200410085346A CN100360299C CN 100360299 C CN100360299 C CN 100360299C CN B2004100853462 A CNB2004100853462 A CN B2004100853462A CN 200410085346 A CN200410085346 A CN 200410085346A CN 100360299 C CN100360299 C CN 100360299C
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- section bar
- casing
- right sides
- jet pipe
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Abstract
The present invention relates to a cooling shaping method and a device for extruding section by plastics. Three slots of which the upper parts are communicated are divided in a box body of the device by a right baffle and a left baffle [29, 23]. A cooling slot is formed at the middle part and cooling agent draining slots [27, 26] are formed at right and left both sides. The cooling slot is divided into a plurality of zones by shaping blocks [3]. Longitudinal baffles [16] are arranged between the bottom of the cooling slot and the lower side of the section for dividing the cooling slot in each zone into right and left two part zones [28, 24]. Cooling agents are independently led into each part zone on both sides of the section by transporting pipelines, and then, are led out by the cooling agent draining slots on both sides without the helps of vacuum suction. Thus, the required negative pressure is low, the wasted energy for pumping vacuum is less, the sealing requirements are low and the sealing does not need among the zones.
Description
Affiliated technical field the present invention relates to a kind of method and apparatus that is used for continuous extrusion plastic section bar is carried out cooling and shaping.
Background technology to continuous extrusion plastic section bar carry out cooling and shaping preferably method be wet vacuum cooling and shaping method, promptly normally extruded plastic profile is used such as cooling liquids such as water by a continuous cooling chamber and cooled off as cooling agent, for the depression of the profile wall that prevents to cause and sink because of cooling, in the cooling interior space, set up unified negative pressure, as disclosed a kind of cooling and shaping method and the device of coming to this of CN1059381C, in each cooling zone on the section bar throughput direction by cover plate two subregions about being separated into mutually on the height of this section bar, cooling agent is raised and falls into the opposite side subregion and cooling is washed away in the section bar another side by the type upper surface at a subregion under the swabbing action of vacuum, is pumped in the next one district behind this district by the opposite side subregion again.Because cooling agent need move to afterbody mobile along section bar by the head from device under the swabbing action of negative pressure, must need higher vacuum, performance to subsidiary engine has proposed to compare higher requirement, require subsidiary engine that powerful vavuum pump must be arranged, need to consume higher energy, claimed apparatus itself will have very high sealing property simultaneously, usually placing sealing strip at part junction solves, but sealing strip is easily aging, damage, the device sealing property is reduced, thereby have influence on cooling medium flowing in device, reduced cooling effect.
Thereby summary of the invention is to be solved by this invention is above-mentioned continuous extrusion plastic section bar to be carried out the cooling and shaping method and device needs high negative to cause the problem that energy consumption is big, seal request is high.
The inventive method is achieved in that during section bar vertically continuously advances along it in the cooling zone of continuing successively, section bar is cooled off it by cooling agent under vacuum atmosphere, and the heat of discharging when by cooling agent section bar being cooled off is derived, two subregions about each cooling zone on the section bar throughput direction is separated into mutually to the height of this section bar by base plate, two subregions import and derive cooling agent respectively independently about each cooling zone under same vacuum negative pressure condition.Because cooling agent independently imports and derives from each subregions of section bar both sides, do not need the suction help of vacuum, thereby required negative pressure is lower, it is less to vacuumize the energy that is consumed, not high to seal request, need not between the Qu Yuqu to seal.
The cooling and shaping device that the present invention is used for extruded plastic profile is achieved in that this device is a casing, casing is provided with aspirating hole, aspirating hole is connected with the vavuum pump bleeding point by the road, the both sides of the inherent section bar mobile space of casing are provided with left and right sides dividing plate, the groove that three tops communicate will be divided in the casing, the centre is a cooling bath, the left and right sides is the cryogen discharge groove, be provided with some shaped block and cooling bath is separated into some districts along the section bar moving direction in the cooling bath, have the through hole that cooperates with the section bar outline on tank ends and the shaped block, two subregions about being provided with longitudinal baffle Jiang Ge district cooling bath between the downside of the bottom of cooling bath and section bar and being divided into, casing is provided with the coolant feed pipeline and communicates with each subregion, is respectively equipped with the outage that communicates with left and right sides cryogen discharge groove on the casing.Cooling agent is independently imported by conveyance conduit each subregion from the section bar both sides, is derived by the both sides letdown tank again, do not need the suction of vacuum to help, thereby required negative pressure is lower, and it is less to vacuumize the energy that is consumed, not high to seal request, need not sealing between the Qu Yuqu.
Be provided with the cooling agent jet pipe that be arranged in parallel with section bar in each subregion of said apparatus, jet pipe is provided with nozzle.Cooling agent is evenly supplied to each subregion by nozzle, and cooling agent adds fashionablely shock wave can not occur, and the isostasy that the section bar sidewall is subjected to is useful to eliminating the internal stress that section bar inside produces because of inhomogeneous cooling; In addition, cooling bath is respectively distinguished the synchronous transport cooling agent, and section bar all contacts with fresh cooling agent in each district, thereby cooling is more even.
Each is distinguished and has the leakage fluid dram that communicates with letdown tank on the dividing plate of the left and right sides, this leakage fluid dram be drive the through hole on the dividing plate of the left and right sides or above the groove of opening.Cooling agent flows in the corresponding letdown tank by leakage fluid dram.By height or the size of offering leakage fluid dram, can regulate the liquid level of each subregion cooling agent, eliminate the internal stress that section bar inside produces because of inhomogeneous cooling, the shape bending that minimizing causes thus, warpage etc. influence the defective of section bar profile.The adjusting device that can establish the adjusting draining flow on the leakage fluid dram is to reach the purpose of regulating liquid level.
Description of drawings Fig. 1 is a cooling and shaping device vertical structure schematic diagram of the present invention.
Fig. 2 is for removing the vertical view behind the cover plate among Fig. 1.
Fig. 3 is along A-A line cutaway view among Fig. 1.
Fig. 4 offers schematic diagram for water level regulating tank of the present invention.
Fig. 5 is provided with structural representation for jet pipe of the present invention staggers.
Fig. 6 is a jet pipe arranged outside structural representation of the present invention.
The specific embodiment is extremely shown in Figure 4 by Fig. 1, cooling and shaping device of the present invention is a casing, the both sides of the inherent section bar mobile space of casing are provided with left and right sides dividing plate [29,23], the groove that three tops communicate will be divided in the casing, the left and right sides is a cryogen discharge groove [27,26], be provided with some shaped block [3] along section bar [12] moving direction in the medial launder, shaped block is fixed in the slot of left and right sides dividing plate, shaped block [3] has 8 in this example, tank ends [11,1] and on the shaped block [3] has the through hole that cooperates with the section bar outline, the shaped block top and the left and right sides cryogen discharge groove [27 of the casing section bar port of export [1], 26] be provided with in and isolate baffle plate [20], casing is divided into two sections of front and back, leading portion is used for to the cooling bath of section bar cooling, back segment is used for removing the dry slot [31] attached to the lip-deep cooling agent of section bar, cooling agent is a water in this example, the end wall below of the casing section bar port of export is provided with the aspirating hole [21] that communicates with dry slot, be connected with the vavuum pump bleeding point by the road, to take out the water that is adsorbed in the section bar surface, dry slot top is beneficial to bleed by other position separation of isolation baffle plate [20] and casing and dehydrates.Preceding 7 shaped block are separated into 8 cooling zones with cooling bath, two subregions [28,24] about being provided with longitudinal baffle [16] Jiang Ge district cooling bath between the downside of the base plate [19] of the bottom of cooling bath and section bar [12] and being divided into, cooling bath is respectively equipped with left and right sides jet pipe [15,17] in left and right sides dividing plate [29,23] bottom, it is nozzle that jet pipe has equally distributed hole for water spraying [18] in each cooling zone towards section bar one side, and the size and the quantity of hole for water spraying are arranged according to product characteristics.The casing both sides are respectively equipped with the inlet [14,25] that communicates with left and right sides jet pipe [15,17] by box side [30,22] and left and right sides dividing plate [29,23], and it also can be a plurality of that every side inlet can be one, shown in the figure is two.Be respectively equipped with the outage [33,5] that communicates with left and right sides cryogen discharge groove [27,26] on the casing biside plate [30,22].The box cover [2] of cooling bath top is provided with aspirating hole [10], Pressure gauge [4] and pressure-regulating valve [6], and aspirating hole [10] is connected with the vavuum pump bleeding point by the road.Cooling water is conveyed into left and right sides jet pipe [15,17] by inlet [14,25], and inject each subregion through hole for water spraying [18] section bar [12] is cooled off, current can be taken away with pump through leakage fluid dram [33,5] by left and right sides dividing plate [29,23] top overflow to letdown tank [27,26] again.
Respectively distinguish liquid level in order to adjust cooling bath, can on the dividing plate of the left and right sides of each subregion or space partition, have the leakage fluid dram [7] that communicates with letdown tank, shown in Figure 2 on the section bar throughput direction first, second, the 4th, the 6th and Section Eight be provided with leakage fluid dram, this leakage fluid dram can be the groove of through hole or top opening, and leakage fluid dram height or big I determine the liquid level of this subregion.For the ease of regulating each subregion liquid level, leakage fluid dram [7] is provided with the governor motion of regulating draining flow, this mechanism is made up of baffle plate [8], adjusting screw(rod) [9] and locking nut [34], each adjusting screw(rod) [9] is fixed on the casing both sides by locking nut [34], baffle plate [8] is positioned on the leakage fluid dram [7] of respective partition inboard on left and right sides dividing plate [29, the 23] madial wall, and be fixed on adjusting screw(rod) [9] other end by screw, can drive baffle plate [8] and rotate with the size of regulating leakage fluid dram [7] and regulate flow by rotating adjusting screw(rod) [9].
Leakage fluid dram of the present invention [7] and water level governor motion thereof both can be arranged on the top of left and right sides dividing plate [29,23], also can be arranged on the bottom of dividing plate, can be set to upper left bottom right in the left and right sides subregion [28,24] or the lower-left upper right, as shown in the figure, the purpose of doing like this is in order better to control the cooling uniformity of extruded product, by adjusting to liquid level, realization is carried out different cooling effectiveness to the different piece of extruded product, thereby overcome the problem of the inhomogeneous cooling that produces because of shape of product is asymmetric, reduce the generation of internal stress to greatest extent.
Sparge pipe [15 of the present invention, 17] can be installed in each subregion dividing plate [29,23] bottom, also can be installed in each subregion dividing plate top, it is upper right also can be installed as upper left bottom right or lower-left, as shown in Figure 5, the purpose of doing so also is in order better to control the cooling uniformity of extruded product, because the shape overwhelming majority of extruded product is special-shaped. the shape difference of various piece is very big, distributing of heat has nothing in common with each other, and the same cross section of product requires cooling synchronously to reduce the generation of internal stress, therefore this just requires each position cooling effectiveness of product is accomplished controlled, takes the scheme that difference is arranged is made at the concrete feature of product in sparge pipe [7] position.
For the ease of fixing shaped block, jet pipe can be installed in dividing plate [29, the 23] outside, and as shown in Figure 6, left and right sides dividing plate [29,23] has the hole for water spraying that communicates with left and right sides jet pipe respectively, and this kind design can be simplified the design of shaped block in the casing.
Claims (7)
1, a kind of method that is used for the cooling and shaping of extruded plastic profile, during section bar vertically continuously advances along it in the cooling zone of continuing successively, section bar is cooled off it by cooling agent under vacuum atmosphere, and the heat of discharging when by cooling agent section bar being cooled off is derived, it is characterized in that: two subregions about each cooling zone on the section bar throughput direction is separated into mutually to the height of this section bar by base plate, two subregions import and derive cooling agent respectively independently about each cooling zone under same vacuum negative pressure condition.
2, a kind of cooling and shaping device that is used for extruded plastic profile, this device is a casing, be provided with some shaped block [3] along the section bar moving direction in the casing, tank ends [1,11] and on the shaped block [3] have the through hole that cooperates with the section bar outline, casing is provided with aspirating hole [10], aspirating hole is connected with the vavuum pump bleeding point by the road, it is characterized in that: the both sides of the inherent section bar mobile space of casing are provided with left and right sides dividing plate [29,23], the groove that three tops communicate will be divided in the casing, the centre is a cooling bath, the left and right sides is a cryogen discharge groove [27,26], described shaped block is placed in the cooling bath and with cooling bath and is separated into some districts, two subregions [28 about being provided with longitudinal baffle [16] Jiang Ge district cooling bath between the downside of the bottom of cooling bath and section bar and being divided into, 24], casing is provided with the coolant feed pipeline and communicates with each subregion, is respectively equipped with on the casing and left and right sides cryogen discharge groove [27,26] outage [5 that communicates, 33].
3, cooling and shaping device according to claim 2 is characterized in that: be provided with the cooling agent jet pipe that be arranged in parallel with section bar in each subregion, jet pipe is provided with nozzle [18].
4, cooling and shaping device according to claim 2 is characterized in that: casing is provided with and anterior dry slot [31] of isolating at the section bar output, and casing is provided with the aspirating hole [21] that communicates with dry slot.
5, cooling and shaping device according to claim 3, it is characterized in that: each parts cooling agent jet pipe in the district on the left side and is interconnected and forms a left jet pipe [15], each parts cooling agent jet pipe in the district on the right side and is interconnected and forms a right jet pipe [17], and the casing both sides are provided with the cooling agent feed tube [14,25] that communicates with left and right sides jet pipe [15,17] respectively.
6, according to claim 2 or 3 or 4 or 5 described cooling and shaping devices, it is characterized in that: each is distinguished and has the leakage fluid dram [7] that communicates with letdown tank [27,26] on the left and right sides dividing plate [19,23], this leakage fluid dram be drive the through hole on the dividing plate of the left and right sides or above the groove of opening.
7, cooling and shaping device according to claim 6 is characterized in that: leakage fluid dram [7] is provided with the adjusting device of regulating draining flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100853462A CN100360299C (en) | 2004-10-12 | 2004-10-12 | Method and equipment for cooling and shaping extruded plastic shaped section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100853462A CN100360299C (en) | 2004-10-12 | 2004-10-12 | Method and equipment for cooling and shaping extruded plastic shaped section |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1760014A CN1760014A (en) | 2006-04-19 |
| CN100360299C true CN100360299C (en) | 2008-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2004100853462A Expired - Fee Related CN100360299C (en) | 2004-10-12 | 2004-10-12 | Method and equipment for cooling and shaping extruded plastic shaped section |
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| CN (1) | CN100360299C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101856868B (en) * | 2010-05-18 | 2012-09-26 | 吴翟 | Method for cooling and shaping plastic profile and device for implementing same |
| CN103568264A (en) * | 2013-10-30 | 2014-02-12 | 苏州泰科尼光伏材料有限公司 | EVA (ethylene-vinyl acetate copolymer) pulling and cooling setting machine with water cooling function |
| CN107599354A (en) * | 2017-09-27 | 2018-01-19 | 上海携晟机械制造有限公司 | Wet setting mould water system and the extrusion molding shaping platform with the system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5008051A (en) * | 1989-03-01 | 1991-04-16 | Decoursey Robert T | Vacuum sizing tank with electronically controlled vacuum pressure |
| CN1115279A (en) * | 1994-02-22 | 1996-01-24 | C.A.格林尔和索恩有限公司 | Method and apparatus for cooling and forming long plastic object |
| US6066288A (en) * | 1996-02-13 | 2000-05-23 | C. A. Greiner & Sohne Gesellschaft Mbh. | Method for cooling and if necessary calibrating articles of plastic |
-
2004
- 2004-10-12 CN CNB2004100853462A patent/CN100360299C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5008051A (en) * | 1989-03-01 | 1991-04-16 | Decoursey Robert T | Vacuum sizing tank with electronically controlled vacuum pressure |
| CN1115279A (en) * | 1994-02-22 | 1996-01-24 | C.A.格林尔和索恩有限公司 | Method and apparatus for cooling and forming long plastic object |
| US6066288A (en) * | 1996-02-13 | 2000-05-23 | C. A. Greiner & Sohne Gesellschaft Mbh. | Method for cooling and if necessary calibrating articles of plastic |
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| CN1760014A (en) | 2006-04-19 |
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