CN201372330Y - Intelligent high-polymer fiber hot setting machine - Google Patents
Intelligent high-polymer fiber hot setting machine Download PDFInfo
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- CN201372330Y CN201372330Y CN200920035457U CN200920035457U CN201372330Y CN 201372330 Y CN201372330 Y CN 201372330Y CN 200920035457 U CN200920035457 U CN 200920035457U CN 200920035457 U CN200920035457 U CN 200920035457U CN 201372330 Y CN201372330 Y CN 201372330Y
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- casing
- polymer fiber
- axial flow
- setting machine
- electric heater
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
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Abstract
The utility model discloses an intelligent high-polymer fiber hot setting machine. The intelligent high-polymer fiber hot setting machine comprises a box body, electric heaters, temperature sensors, an electric control device, an axial flow fan, and a frequency-variable motor, wherein a wind distribution chamber, a voltage stabilizing chamber and a heating chamber are sequentially arranged below a work chamber in the box body; the axial flow fan is arranged in the center of the heating chamber; the frequency-variable motor is arranged at the outer bottom of the box body; the electric heaters are symmetrically arranged on both sides of the axial flow fan; arc-shaped baffle plates are arranged at the periphery of the axial flow fan; guide plates are arranged on the inner sides of the electric heaters; damping plates are arranged on the outer sides of the electric heaters; flow guide adjusting devices are arranged on both sides of the top of the heating chamber; the tops of the voltage stabilizing chamber and the wind distribution chamber both adopt a porous plate structure; probe of the temperature sensors are located in the work chamber of the box body; and return channels are arranged in the centers of the wind distribution chamber and the voltage stabilizing chamber. The intelligent high-polymer fiber hot setting machine has the advantages of high heat transfer efficiency, high speed, low energy consumption, and good temperature uniformity, and can meet the requirement of the hot setting of high-polymer fiber bundles.
Description
Technical field
The utility model relates to a kind of high polymer fiber intelligent heat setting machine that is applied to chemical fibre industry.
Background technology
Existing application is in the macromolecular fibre heat setting machine of chemical fibre industry, and it mainly is made of casing, electric heater, temperature sensor and electrical control gear.Casing is made up of housing and inner chamber body, is filled with insulation material between housing and the inner chamber body, and the inside of cabinets cavity body is the operating room of macromolecular fibre tow HEAT SETTING.Electric heater is arranged on the lateral surface of cabinets cavity body, and the probe of temperature sensor connects to separate and touches on the lateral surface of cabinets cavity body.During work, the heat energy that electric heater produces is at first absorbed by the body wall of the inner chamber body of casing, and the inner chamber body that temperature raises is transmitted heat by thermal-radiating mode in it, thereby the operating room's temperature in the inner chamber body is raise.Owing to transmit heat by thermal-radiating mode to box house, not only transmission efficiency is low, speed is slow, energy consumption is high, and the poor temperature uniformity in the operating room, is difficult to satisfy the technological requirement of macromolecular fibre tow HEAT SETTING.
The utility model content
The technical problems to be solved in the utility model provides a kind of high polymer fiber intelligent heat setting machine, and this machine transmits not only that efficient height, the speed of heat are fast, energy consumption is low, and temperature homogeneity is good, thereby satisfies the technological requirement of macromolecular fibre tow HEAT SETTING.
For solving the problems of the technologies described above, a kind of high polymer fiber intelligent heat setting machine of the utility model, it contains casing, electric heater, temperature sensor and electrical control gear, casing contains the operating room, before the casing, back both sides are respectively equipped with the import and the outlet of macromolecular fibre tow, also contain axial flow blower, variable-frequency motor, the below of the operating room in the described casing is provided with equal air compartment successively, pressure stabilizing chamber and heating clamber, axial flow blower is arranged on the central authorities of heating clamber, variable-frequency motor is arranged on the below of bottom half and links to each other with axial flow blower, described electric heater is symmetrically distributed in the both sides of axial flow blower, the periphery of axial flow blower is provided with arc deflector, the inboard of described electric heater is provided with guide plate, its outside is provided with damping sheet, damping sheet is the porous plate that contains some air vents, the both sides, top of heating clamber are provided with the water conservancy diversion adjusting device, the top of the top of pressure stabilizing chamber and equal air compartment is perforated plate construction, the probe of described temperature sensor is positioned at the casing operating room, all the central authorities of air compartment and pressure stabilizing chamber are provided with the return flow line, operating room in the upper inlet of this passage and the described casing is communications and liaison mutually, the top of its underpart outlet and heating clamber is communications and liaison and be positioned at the top of axial flow blower mutually, and the inside of this passage is provided with homogenating plate.
Described casing is made of the case lid on top and the lower box of bottom, one side of case lid is that hinge is connected with a side of lower box, the contact position of case lid and lower box is provided with aluminum alloy bar, this aluminum alloy bar is corresponding with the high temperature resistant sponge silicon rubber bar that lower box is provided with, the inwall that case lid and lower box are hinged a side is provided with the stainless steel deep bead, the lower end of this plate is lower than the contact position of case lid and lower box, remaining inwall of case lid is provided with high temperature resistant elastic silicone rubber deep bead, the lower end of this deep bead is lower than the contact position of case lid and lower box, the outside of casing is provided with support, the case lid of casing links to each other with support by cylinder, and cylinder is provided with magnetic limit switch.
The import of macromolecular fibre tow and the exit of the forward and backward both sides of described casing are respectively equipped with the slit adjusting device, this device is made up of last slit adjustable plate and following slit adjustable plate, and last slit adjustable plate and following slit adjustable plate are installed in the upper and lower of import and outlet respectively.
Described electric heater is installed on the drawer type fixed mount that the outer face is provided with flange, and this insertion heating clamber also is fixed on this chamber.
Described electric heater contains main and auxiliary heater.
The main and auxiliary heater that described electric heater contains is finned electric heating tube, and the surface of this pipe is provided with spiral fin.
Described temperature sensor is provided with 9 to 15 on casing, described electrical control gear contains intelligent digital display formula touch-screen multiple spot thermostat.
Described electrical control gear contains the temperature sensor faiture alarm, cuts off the interlocked control circuit of electric heater automatically.
Described electrical control gear contains the interlocked control circuit that axial flow blower damages, cuts off electric heater automatically.
When the case lid that described electrical control gear contains described casing is opened, cut off the interlocked control circuit of blower fan and electric heater automatically.
Because the below of the operating room in the casing is provided with equal air compartment successively, pressure stabilizing chamber and heating clamber, and electric heater, axial flow blower is arranged in the heating clamber, axial flow blower is under the drive that is positioned at the variable-frequency motor below the heating clamber bottom, bring the thermal current that the electric heater heating produces into pressure stabilizing chamber from heating clamber, top from the pressure stabilizing chamber porous plate enters equal air compartment again, the thermal current that enters equal air compartment enters operating room in the casing from the porous plate at this top, chamber, the macromolecular fibre tow is added HEAT SETTING, thermal current is after the return flow line is back to the import of axial flow blower, thereby makes thermal current carry out thermal cycle.Because of water conservancy diversion and the damping of thermal current through the guide plate and the damping sheet of heating clamber, pressure stabilizing chamber and all voltage stabilizing and current-sharings of the porous plate of air compartment, thereby make the thermal current that arrives in the operating room uniform and stable, therefore the temperature homogeneity in the operating room is good, thereby has satisfied the technological requirement of macromolecular fibre tow HEAT SETTING.Owing to adopt the directly mode of circulation, so transmit that efficient height, the speed of heat is fast, energy consumption is low.Because electric heater contains main and auxiliary heater, therefore when reaching the setting technological temperature in the operating room, electrical control gear cuts off the first device of auxilliary heating automatically, thus energy savings.Because electric heater is finned electric heating tube, the surface of this pipe is provided with spiral fin, has therefore further improved heat transference efficiency.Because electric heater is installed on the drawer type fixed mount that the outer face is provided with flange, this can insert or draw off heating clamber, therefore is convenient to safeguard, maintenance.Because the import of macromolecular fibre tow and the exit of the forward and backward both sides of casing are respectively equipped with the slit adjusting device, have therefore effectively prevented leaking of heat in the casing, thereby further improved the uniformity of temperature in the casing and reduced the loss of heat.Because the probe of temperature sensor is positioned at the operating room, truly measure the temperature in it, overcome that the prior art temperature sensor probe contacts with the lateral surface of cabinets cavity body and the deficiency that can not measure operating room's internal temperature.Because the temperature sensor that is provided with on casing has 9 to 15, electrical control gear contains intelligent digital display formula touch-screen multiple spot thermostat, therefore when a certain test point exceeds the temperature homogeneity requirement, the automatic sound-light alarm prompting, can be provided with the uniformity that the water conservancy diversion adjusting device changes the work indoor temperature by regulating both sides, heating clamber top like this, automatically regulate the rotating speed of variable-frequency motor with timed unit and control rotation speed of fan, improve temperature homogeneity in the interior operating room of casing, so the automaticity height.Because electrical control gear contains the temperature sensor faiture alarm, cuts off the interlocked control circuit of electric heater automatically, has therefore guaranteed normal safety in production.Because casing is made of the case lid on top and the lower box of bottom, therefore when the fracture of wire phenomenon takes place in the macromolecular fibre tow in casing, can by cylinder case lid be opened the processing filament failure easily, be a whole deficiency that is difficult to handle generation filament failure in the casing thereby overcome the prior art casing.Owing to when the case lid that electrical control gear contains casing is opened, cut off the interlocked control circuit of blower fan and electric heater automatically, therefore ensured the safety of handling failure.Damage, cut off the interlocked control circuit of electric heater automatically because electrical control gear contains blower fan, thereby guaranteed the safety of producing.
Description of drawings
Fig. 1 is the structural representation of the utility model high polymer fiber intelligent heat setting machine.
Fig. 2 is a K-K cutaway view among Fig. 1.
Fig. 3 is that E-E analyses and observe zoomed-in view among Fig. 1.
Fig. 4 is a B portion zoomed-in view among Fig. 3.
Fig. 5 is an A portion zoomed-in view among Fig. 3.
1. slit adjusting devices among the figure, 2. import, 3. temperature sensor, 4. housing, 5. insulation material, 6. support, 7. cylinder, 8. inner chamber body, 9. operating room, 10. return flow line, 11. homogenating plates, 12. outlet, 13. slit adjusting devices, 14. heating clambers, 15. variable-frequency motor, 16. axial flow blowers, 17. arc deflectors, 18. guide plate, 19. electric heaters, 20. damping sheets, 21. pressure stabilizing chamber, 22. equal air compartments, 23. water conservancy diversion adjusting devices, 24. case lid, 25. lower boxes, 26. hinges, 27. the stainless steel deep bead, 28. aluminum alloy bars, 29. high temperature resistant sponge silicon rubber bars, 30. high temperature resistant elastic silicone rubber deep bead, 31. magnetic limit switch, 32. bearings.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
Among Fig. 1 and Fig. 2, the casing of high polymer fiber intelligent heat setting machine is made up of housing 4 and inner chamber body 8, be filled with insulation material 5 between housing 4 and the inner chamber body 8, casing contains operating room 9, the forward and backward both sides of casing are respectively equipped with the import 2 and the outlet 12 of macromolecular fibre tow, and casing is arranged on the bearing 32.The housing 4 of casing is by shaped steel and book steel plate welding production, and inner chamber body 8 is a stainless steel material.High polymer fiber intelligent heat setting machine also contains axial flow blower 16, variable-frequency motor 15.The below of the operating room 9 in the casing is provided with equal air compartment 22, pressure stabilizing chamber 21 and heating clamber 14 successively.Axial flow blower 16 is arranged on the central authorities of heating clamber 14, and variable-frequency motor 15 is arranged on the below of bottom half and links to each other with axial flow blower 16.For maintaining easily and maintaining, electric heater 19 is installed on the drawer type fixed mount that the outer face is provided with flange, this insertion heating clamber 14 also is fixed on this chamber, and this is symmetrically distributed in the both sides of axial flow blower 16, and the periphery of axial flow blower 16 is provided with arc deflector 17.The inboard of electric heater 19 is provided with guide plate 18, its outside is provided with damping sheet 20, and damping sheet 20 is for containing the porous plate of some air vents.The both sides, top of heating clamber 14 are provided with water conservancy diversion adjusting device 23, and this device 23 can be controlled the amount that enters pressure stabilizing chamber 21 thermal currents.The top of the top of pressure stabilizing chamber 21 and equal air compartment 22 is perforated plate construction.The probe of temperature sensor 3 is positioned at the operating room 9 of casing.All the central authorities of air compartment 22 and pressure stabilizing chamber 21 are provided with return flow line 10, operating room 9 in the upper inlet of this path 10 and the casing mutually communications and liaison, its underpart outlet and heating clamber 14 top phase communications and liaison and be positioned at the top of axial flow blower 16, the inside of this path 10 is provided with homogenating plate 11, and this plate is the porous plate that is provided with air vent.For preventing that the heat in the operating room 9 from leaking, the macromolecular fibre tow import 2 of the forward and backward both sides of casing and outlet 12 places are provided with slit adjusting device 1 and 13 respectively. Slit adjusting device 1 and 13 is formed by last slit adjustable plate and following slit adjustable plate, and last slit adjustable plate and following slit adjustable plate are installed in the upper and lower of import 1 and outlet 13 respectively.For the ease of handling the filament failure that takes place in the course of the work, as shown in Figure 3, casing is made into case lid 24 and lower box 25 two parts, a side of case lid 24 is connected by hinge 26 with a side of lower box 25.The outside of casing is provided with support 6, the case lid 24 of casing links to each other with support 6 by cylinder 7, cylinder 7 is provided with magnetic limit switch 31, like this when filament failure takes place, can open case lid 24 by cylinder 7 easily, handle, magnetic limit switch 31 can guarantee that case lid 24 is opened to a certain angle.In order to ensure the safety of handling filament failure, electrical control gear contains box cover 24 when opening, cut off the interlocked control circuit of blower fan 16 and electric heater 19 automatically.In order to improve the tightness energy of box cover 24 and lower box 25, as shown in Figure 4 and Figure 5, case lid 24 is provided with aluminum alloy bar 28 with the contact position of lower box 25, this aluminum alloy bar 28 is corresponding with the high temperature resistant sponge silicon rubber bar 29 that lower box 25 is provided with, and the lower end that the inwall of the side that case lid 24 is connected with the hinge 26 of lower box 25 is provided with stainless steel deep bead 27, this plate 27 is lower than the contact position that the contact position of case lid 24 and lower box 25, lower end that case lid 24 remaining inwall are provided with high temperature resistant elastic silicone rubber deep bead 30, this deep bead 30 are lower than case lid 24 and lower box 25.For energy savings, electric heater 19 contains main and auxiliary heater, and when the temperature in the operating room 9 reaches the setting technological temperature, electrical control gear will cut off the first device of auxilliary heating automatically like this.In order further to improve heat transference efficiency, electric heater 19 is finned electric heating tube, and the surface of this pipe is provided with spiral fin.In order to measure the true temperature in the operating room 9, the probe of temperature sensor 5 is positioned at operating room 9, temperature sensor can be provided with 9 to 15 on casing, electrical control gear contains intelligent digital display formula touch-screen multiple spot thermostat, therefore when a certain test point exceeds the temperature homogeneity requirement, the automatic sound-light alarm prompting, like this can be by regulating the water conservancy diversion adjusting device 23 that heating clamber 14 tops are provided with, the amount that control enters the thermal current in the operating room 9, change the uniformity of its internal temperature, automatically the rotating speed of regulating variable-frequency motor 15 with timed unit comes Control Shaft flow fan 16 rotating speeds, improves operating room's 9 interior temperature homogeneities in the casing, so the automaticity height.For safing production, electrical control gear contains temperature sensor 3 faiture alarms, cuts off the interlocked control circuit that the interlocked control circuit of electric heater 19 and axial flow blower 16 damaged, cut off automatically electric heater 19 automatically.The utility model is owing to being provided with equal air compartment 22 successively below the operating room 9 in casing, pressure stabilizing chamber 21 and heating clamber 14, electric heater 19, axial flow blower 16 is arranged in the heating clamber 14, axial flow blower 16 is under the drive of variable-frequency motor 15 like this, the thermal current that electric heater 19 heating is produced is provided with water conservancy diversion adjusting device 23 from heating clamber 14 through its top and brings pressure stabilizing chamber 21 into, top from pressure stabilizing chamber 21 porous plates enters equal air compartment 22 again, the thermal current that enters equal air compartment 22 is from the porous plate at this top, chamber enters operating room 9 in the casing, the macromolecular fibre tow is added HEAT SETTING, thermal current is at last from the return flow line 10 and be back to the import of axial flow blower 16 through homogenating plate 11 wherein, thereby makes thermal current carry out thermal cycle.Water conservancy diversion and damping because of arc-shaped guide plate 17, guide plate 18 and the damping sheet 20 of thermal current in heating clamber 14, pressure stabilizing chamber 21 and all voltage stabilizing and current-sharings of the porous plate of air compartment 22, thereby make the thermal current in the operating room 9 that arrives in the casing uniform and stable, therefore the temperature homogeneity in the operating room 9 in the casing is good, thereby has satisfied the technological requirement of macromolecular fibre tow HEAT SETTING.Owing to adopt the mode of direct heat circulation, efficient height, the speed of therefore transmitting heat is fast, energy consumption is low.
Claims (10)
1. high polymer fiber intelligent heat setting machine, it contains casing, electric heater, temperature sensor and electrical control gear, casing contains the operating room, before the casing, back both sides are respectively equipped with the import and the outlet of macromolecular fibre tow, it is characterized in that: also contain axial flow blower, variable-frequency motor, the below of the operating room in the described casing is provided with equal air compartment successively, pressure stabilizing chamber and heating clamber, axial flow blower is arranged on the central authorities of heating clamber, variable-frequency motor is arranged on the below of bottom half and links to each other with axial flow blower, described electric heater is symmetrically distributed in the both sides of axial flow blower, the periphery of axial flow blower is provided with arc deflector, the inboard of described electric heater is provided with guide plate, its outside is provided with damping sheet, damping sheet is the porous plate that contains some air vents, the both sides, top of heating clamber are provided with the water conservancy diversion adjusting device, the top of the top of pressure stabilizing chamber and equal air compartment is perforated plate construction, the probe of described temperature sensor is positioned at the casing operating room, all the central authorities of air compartment and pressure stabilizing chamber are provided with the return flow line, operating room in the upper inlet of this passage and the described casing is communications and liaison mutually, the top of its underpart outlet and heating clamber is communications and liaison and be positioned at the top of axial flow blower mutually, and the inside of this passage is provided with homogenating plate.
2. high polymer fiber intelligent heat setting machine according to claim 1, it is characterized in that: described casing is made of the case lid on top and the lower box of bottom, one side of case lid is that hinge is connected with a side of lower box, the contact position of case lid and lower box is provided with aluminum alloy bar, this aluminum alloy bar is corresponding with the high temperature resistant sponge silicon rubber bar that lower box is provided with, the inwall that case lid and lower box are hinged a side is provided with the stainless steel deep bead, the lower end of this plate is lower than the contact position of case lid and lower box, remaining inwall of case lid is provided with high temperature resistant elastic silicone rubber deep bead, the lower end of this deep bead is lower than the contact position of case lid and lower box, the outside of casing is provided with support, the case lid of casing links to each other with support by cylinder, and cylinder is provided with magnetic limit switch.
3. high polymer fiber intelligent heat setting machine according to claim 1, it is characterized in that: the import of macromolecular fibre tow and the exit of the forward and backward both sides of described casing are respectively equipped with the slit adjusting device, this device is made up of last slit adjustable plate and following slit adjustable plate, and last slit adjustable plate and following slit adjustable plate are installed in the upper and lower of import and outlet respectively.
4. high polymer fiber intelligent heat setting machine according to claim 1 is characterized in that: described electric heater is installed on the drawer type fixed mount that the outer face is provided with flange, and this insertion heating clamber also is fixed on this chamber.
5. according to claim 1,2,3 or 4 described high polymer fiber intelligent heat setting machines, it is characterized in that: described electric heater contains main and auxiliary heater.
6. high polymer fiber intelligent heat setting machine according to claim 5 is characterized in that: the main and auxiliary heater that described electric heater contains is finned electric heating tube, and the surface of this pipe is provided with spiral fin.
7. high polymer fiber intelligent heat setting machine according to claim 6 is characterized in that: described temperature sensor is provided with 9 to 15 on casing, and described electrical control gear contains intelligent digital display formula touch-screen multiple spot thermostat.
8. high polymer fiber intelligent heat setting machine according to claim 1 is characterized in that: described electrical control gear contains the temperature sensor faiture alarm, cuts off the interlocked control circuit of electric heater automatically.
9. high polymer fiber intelligent heat setting machine according to claim 1 is characterized in that: described electrical control gear contains the interlocked control circuit that axial flow blower damages, cuts off electric heater automatically.
10. high polymer fiber intelligent heat setting machine according to claim 2 is characterized in that: when the case lid that described electrical control gear contains described casing is opened, cut off the interlocked control circuit of blower fan and electric heater automatically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920035457U CN201372330Y (en) | 2009-03-23 | 2009-03-23 | Intelligent high-polymer fiber hot setting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920035457U CN201372330Y (en) | 2009-03-23 | 2009-03-23 | Intelligent high-polymer fiber hot setting machine |
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| Publication Number | Publication Date |
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| CN201372330Y true CN201372330Y (en) | 2009-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200920035457U Expired - Fee Related CN201372330Y (en) | 2009-03-23 | 2009-03-23 | Intelligent high-polymer fiber hot setting machine |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102242412A (en) * | 2010-05-13 | 2011-11-16 | 江苏鑫龙化纤机械有限公司 | Dry heat draw box |
| CN102677201A (en) * | 2011-03-18 | 2012-09-19 | 江苏鑫龙化纤机械有限公司 | Box body structure of dry hot drafting box |
| CN103556425A (en) * | 2013-11-06 | 2014-02-05 | 中国纺织科学研究院 | High-temperature heat setting device |
| CN106048754A (en) * | 2016-07-09 | 2016-10-26 | 江苏金斗重工有限公司 | Hot-air drawing box with uniform temperature and height |
| CN109652888A (en) * | 2017-10-11 | 2019-04-19 | 江苏神鹤科技发展有限公司 | A kind of intelligent constant-temperature hot air apparatus |
-
2009
- 2009-03-23 CN CN200920035457U patent/CN201372330Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102242412A (en) * | 2010-05-13 | 2011-11-16 | 江苏鑫龙化纤机械有限公司 | Dry heat draw box |
| CN102242412B (en) * | 2010-05-13 | 2015-06-17 | 江苏鑫龙化纤机械有限公司 | Dry heat draw box |
| CN102677201A (en) * | 2011-03-18 | 2012-09-19 | 江苏鑫龙化纤机械有限公司 | Box body structure of dry hot drafting box |
| CN103556425A (en) * | 2013-11-06 | 2014-02-05 | 中国纺织科学研究院 | High-temperature heat setting device |
| CN106048754A (en) * | 2016-07-09 | 2016-10-26 | 江苏金斗重工有限公司 | Hot-air drawing box with uniform temperature and height |
| CN106048754B (en) * | 2016-07-09 | 2018-07-17 | 江苏金斗重工有限公司 | A kind of dry heat draw box of temperature high uniformity |
| CN109652888A (en) * | 2017-10-11 | 2019-04-19 | 江苏神鹤科技发展有限公司 | A kind of intelligent constant-temperature hot air apparatus |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091230 Termination date: 20150323 |
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| EXPY | Termination of patent right or utility model |