CN103057019B - Air cooling device for thick plastic film stretching production line casting sheet - Google Patents
Air cooling device for thick plastic film stretching production line casting sheet Download PDFInfo
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- CN103057019B CN103057019B CN201310023131.7A CN201310023131A CN103057019B CN 103057019 B CN103057019 B CN 103057019B CN 201310023131 A CN201310023131 A CN 201310023131A CN 103057019 B CN103057019 B CN 103057019B
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- 210000005056 cell body Anatomy 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 14
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Abstract
The invention discloses an air cooling device for a plastic thick film stretching production line casting sheet. The air cooling device is characterized in that the inner side surface of a cooling air cover is bent to form an arc corrugated plate close to a drum surface of a cold drum, the cross section of the cooling air cover is in a continuous wave shape which is arrayed in a straight column along a circular arc line, the top end of each wave peak is provided with a slit type air nozzle, and all the air nozzle are positioned on a column bus coaxial to the cold drum; a trough of wave at the outer side of the corrugated plate is provided with an air return channel, a cavity body at the outer side of the corrugated plate is sealed so as to be used as an air inlet cavity, and the air inlet cavity is connected with a cold air fan; air return cavities which are symmetrical are respectively arranged at the left and right ends of the air inlet cavity, one sides of the air return cavities are communicated with the air return channel, the outer sides of the air return cavities are connected with an exhaust fan, and an air inlet pipe and an air return pipe are provided with a thermometer pressure gauge and an air regulating valve; and the left and right ends of the cooling air cover are provided with a cold drum protection structure which is composed of a groove body and a protection body, the cooling air cover can be divided into two, the cooling air cover is fixedly connected with a regulating plate connected with a rack, and the height of the cooling air cover can be regulated and the horizon distance between the cooling air cover and the cold drum also can be regulated. The device provided by the invention has the advantages that the cooling effect of a thick sheet on the cold drum is uniform, the efficiency is high, and the casting sheet quality is guaranteed.
Description
Technical field
The present invention relates to the slab manufacturing technology of plastic foil stretching production line, the air cooling equipment that particularly a kind of plastics thick film stretching production line slab is used.
Background technology
One of important step of stretched plastic film production line is the making of sheet.After molten polymer is extruded by die head, be attached to cold drum surface under the effect of tab device, by low temperature and the auxiliary cooling provision of cold drum, melted polymer cools forms solid sheet, and this process is slab.On cold drum, the cooling effect of sheet is one of key factor determining slab quality, and the quality of slab quality will affect the physics, machinery of posterior drawing form film, the performance such as electric, and product yield etc.For this reason, guarantee that slab quality is the committed step of producing high-quality thin-film.
The existing conventional slab type of cooling have single-drum cooling, rouse more cooling, contact pair roller cooling, cold drum-tank is cooling etc., be mainly used in conventional film slab process.More research is for the improvement of cold drum (roller) cooling medium endless form and the aspects such as raising of energy utilization rate at present.Along with the development in plastic sheeting market, the range of application of thick film (150～300 μ m) constantly expands, and demand is more and more higher.Because the slab thicknesses in thick film slab production process is thicker, speed is higher, by the existing slab type of cooling, is difficult to obtain the good sheet of quality, therefore, need to develop cooling device special-purpose in a kind of plastics thick film stretching production line slab process.
Summary of the invention
The object of the invention is to design the air cooling equipment that a kind of plastics thick film stretching production line slab is used, this device for increasing the cooling cover around cold drum after tab device, on sheet and cold bulging contact-making surface, directly air-cooled to sheet at the cold bulging back side, cooling-down effect is obvious, has improved slab quality.
The air cooling equipment that the plastics thick film stretching production line slab of the present invention's design is used, comprise cooling cover and cold wind blower fan, after cooling cover is installed on tab device, cooling cover inner side is for the corrugated sheet of embowment, towards also close cold drum surface, and in the cross section of cooling cover, week is the continuous wave along circular arc line array arrangement.The lateral length of cooling cover is greater than the axial width of the effective working face of cold drum, is greater than sheet width.The top of each crest of cooling cover corrugated sheet is the tuyere of slit, it traverses cooling cover inner side, and 12～26 tuyeres are parallel to each other, and cooling cover is when operating position, each tuyere in the coaxial cylinder bus of cold drum on, this body diameter is greater than cold bulging diameter 5～10mm.Tuyere width is 2～6mm.The right central angle of arc that the top of each crest of corrugated sheet of cooling cover inner side forms is 60 °～130 °.
The dividing plate at the left and right two ends of cooling cover slit tuyere, part upper, lower horizontal side plate and cooling cover outer panels are air-inlet cavity by the sealing of corrugated sheet outboard chambers, described left and right dividing plate is the flat board vertical with the central shaft of cold drum, its inner side edge towards cold drum is and the continuous array wavy line of the Wave crest and wave trough form fit of corrugated sheet that the inner side edge of left and right dividing plate is tightly connected with the left and right limit of corrugated sheet respectively.The lateral length of corrugated sheet equals the axial width of the effective working face of cold drum.The central axes of described upper, lower horizontal side plate and cold drum, a horizontal edge of upper, lower horizontal side plate is tightly connected with the upper and lower limit of corrugated sheet respectively.The lateral length of upper, lower horizontal side plate is greater than the lateral length of corrugated sheet.The upper and lower edge on left and right dividing plate the inner side of curve limit is connected with the inner face of upper, lower horizontal side plate respectively.Another horizontal edge of upper, lower horizontal side plate, each of left and right dividing plate outer side edges is all tightly connected with the outer panels of cooling cover.Above and below and the lateral surface of the coated cooling cover of outer panels.In the outer panels of air-inlet cavity, have fresh air inlet, the blast pipe that is tightly connected, the external cold wind blower fan of blast pipe.Respectively there is the return air chamber of a separation at the two ends, left and right of cooling cover air-inlet cavity, the horizontal left and right end of cooling cover respectively has left and right end plate, left and right end plate is the flat board vertical with cold bulging central shaft, its inner side edge towards cold drum is circular arc line, the diameter of this circular arc is identical with the body diameter that each tuyere forms, cooling cover is when operating position, and the center of circle of this circular arc is on the axis of cold drum.The circular arc inner side edge of the left and right end plate arc that is respectively tightly connected, the curved surface of this arc is identical with the face of cylinder that each tuyere forms, cooling cover is when operating position, the axis of this arc overlaps with the axis of cold drum, arc is in the face of two ends, the left and right drum surface outside the effective working face of cold drum, the crest of the wavy line of the circular arc line of the inner side edge of arc and the inner side edge of dividing plate is tangent, a be tightly connected horizontal edge of upper, lower horizontal side plate of the upper and lower limit of arc.Another horizontal edge of upper, lower horizontal side plate, each of left and right end plate outer side edges is all tightly connected with outer panels, and the upper edge of left and right end plate circular arc inner side edge and lower edge are tightly connected with one end of upper, lower horizontal side plate respectively.Towards the arc of cold drum, first member plate, left clapboard, the return air chamber that the space of part upper, lower horizontal side plate and the sealing of cooling cover outer panels is left end, the width in return air chamber is 85～105mm, the structure in right-hand member return air chamber and left end return air chamber are symmetrical.The bar shaped return air channel that trough outside corrugated sheet between tuyere forms, and communicate with return air chamber.Respectively having return air hole, connect left and right backwind tube, the external air exhauster of left and right backwind tube respectively in the outer panels in the return air chamber of left and right end.
Described return air channel requires there is larger space, and the radial distance at the bottom of the crest summit of corrugated sheet and trough between point is 100～110mm, and the circumferential distance between crest summit is 60～70mm.
Cooling cover is in operating position, the work of cold wind blower fan, cold wind enters air-inlet cavity through blast pipe, through each tuyere, blow to the sheet back side on cold drum, adjustable cooling air quantity and cooling wind speed, cold wind and sheet carry out becoming hot blast after heat exchange, the bar shaped return air channel that the hot blast returning forms along trough between tuyere outside corrugated sheet is pooled to respectively left and right return air chamber, by backwind tube, by air exhauster, is discharged.
For the ease of cooling control, cooling cover is divided into identical upper cooling cover and lower cooling cover, the right central angle of arc that in the cross section of upper and lower cooling cover, the top of each crest of waveform in week forms is respectively 60 °～70 °, the upper end of the lower end of upper cooling cover arcwall face and lower cooling cover arcwall face joins, between the two, fill sealing gasket, sealing gasket can be nitrile rubber sealing gasket, with heat-resisting and anti-oxidant aging.
On the blast pipe of cooling cover and backwind tube, be all furnished with thermometer and pressure gauge, and be provided with adjusting valve, on the fixedly valve plate of adjusting valve, be carved with angle, can read the aperture of valve plate.
The downside of the upside of upper cooling cover air-inlet cavity and lower cooling cover air-inlet cavity has observation window, and the side in each return air chamber has observation window, and observation window has sealed transparent window to be opened/closed, is convenient to observe and cleaning.
For the medial surface of cooling cover can be tried one's best near cold drum, keep less gap, cooling effect is maximized, prevent the fan housing scratching that is cooled of cold bulging operation process simultaneously, also designed cold drum protection structure, cold drum protection structure is arranged on the two ends, left and right of cooling cover, in two return air chambeies, face on the arc of cold drum, this cold drum protection structure comprises cell body and baffle, cell body is rectangular, cross section is [shape, bend as arc, the arcwall face of bottom land matches with the arc in return air chamber, the arcwall face of bottom land is posted by arc, and be fixedly connected with it, groove width is less than return air chamber width, for 65mm～75mm, groove depth 2mm～4mm, setting-in baffle in groove, baffle also curves the arc coordinating with cell body, baffle width is identical with the groove width of cell body, thickness is greater than groove depth, for 4mm～8mm, baffle arc two ends are designed with the boss of 1mm～3mm, length is 25mm～35mm, left and right terminal drum face sliding friction outside the boss medial surface of baffle and the effective working face of cold drum.The radius of baffle medial surface circular arc is greater than cold bulging radius 1～3mm.Described baffle is that polytetrafluoroethylmaterial material is made.
For the ease of regulating the position of cooling cover, upper and lower cooling cover is fastened on vertical adjustable plate, bolt secured adjusted plate is on the kidney-shaped adjustment hole of frame structure frame, be installed on adjusting bolt top vertical in frame and be butted on adjustable plate bottom, unclamp after the bolt of secured adjusted plate, adjusting bolt moves up and down and can make adjustable plate Level Change, thereby regulates the height of cooling cover, makes cooling cover and cold drum keep coaxial.Adjusting completes bolt, the fastening adjustment plate of the adjustable plate that is tightened.
Ground is provided with the guide rail of level, and guide rail bearing of trend is vertical with cold bulging axis.Wheel shaft is installed before and after frame bottom surface, and front and back wheel shaft is installed respectively 2 frame wheels, and frame wheel is seated on guide rail.A wheel shaft of drive motors and frame drives and is connected, and drive motors can drive wheel shaft to rotate, and frame is taken turns and advanced on guide rail, makes frame and cooling cover enter operating position, or leaves cold drum and enter maintenance position.Before cooling cover operating position and maintenance position, frame takes turns on the guide rail of residing some operating position approach switch and maintenance position approach switch is respectively set, the holding wire of approach switch is connected with the control system of controlling drive motors.Control system is according to the start and stop of the signal controlling drive motors of approach switch.Drive motors is variable-frequency motor, and control system can be set working procedure, controls the starting of drive motors low speed, then pilot process Accelerating running, when approaching object, run slowly, finally stop at assigned address, avoid the fierceness collision starting or stoping or exceed assigned address.A wheel shaft of frame is also provided with hand-operated mechanism, can with spanner, rotate the driving shaft of frame, moving frame and cooling cover under power down mode.
Compared with prior art, the advantage of the air cooling equipment that plastics thick film stretching production line slab of the present invention is used is: 1, to the sheet on cold drum, can carry out effective cooling, cooling effect is even, heat exchange efficiency is high, from both macro and micro, guaranteed the quality of slab, for follow-up biaxial tension provides the sheet that meets preferably process requirements; 2, many tuyere designs of slit, guarantee best cooling air quantity and wind speed, and have guaranteed cooling uniformity; 3, the design in return air channel and return air chamber, guarantees that cooling air and sheet carry out in the shortest time, discharging after heat exchange, improves heat exchange efficiency; 4, cold drum protection structure had both guaranteed the minimum spacing of fan housing and cold drum, had protected again cold bulging surface not by scratch; 5, blast pipe and backwind tube are furnished with pressure gauge and thermometer is monitored, and have adjusting valve to be convenient to regulate to control air quantity; 6, cooling cover is connected with frame movably, and frame is equipped with automatically and manual two kinds of type of drive, convenient operation and maintenances.
Accompanying drawing explanation
The overall structure schematic diagram of the air cooling equipment embodiment that Fig. 1 uses for these plastics thick film stretching production line slab;
Fig. 2 is the local enlarged diagram in the interior lateral section of cooling cover in Fig. 1;
Fig. 3 is that the medial surface P of cooling cover in Fig. 1 is to the local enlarged diagram of view;
Fig. 4 is that the end face Q of cooling cover in Fig. 3 is to the local enlarged diagram of view;
Fig. 5 is Fig. 3,4 median septum structural representations;
Fig. 6 is the cold drum protection structure A-A cross section enlarged diagram of cooling cover in Fig. 2.
Number in the figure is:
1, sheet, 2, cold drum, 2-1, tab device, 3, cooling cover, 3-1, cold drum protection structure; 3-11, cell body, 3-12, baffle, 3-2, air-inlet cavity, 3-3, tuyere, 3-4, return air channel; 3-5, corrugated sheet, 3-6, outer panels, 3-7, horizontal side plate, 3-8, return air chamber; 3-81, arc, 3-9, dividing plate, 3-0, end plate, 4, observation window; 5, adjustable plate, 6, frame wheel, 7, adjusting bolt, 8, blast pipe; 9, backwind tube, 10, guide rail, 11, drive motors, 12, frame.
The specific embodiment
The air cooling equipment embodiment overall structure that these plastics thick film stretching production line slab is used as shown in Figure 1, after cooling cover 3 is installed on tab device 2-1, sheet 1 on cold drum 2 first enters this cooling cover 3 again through tab device 2-1, the corrugated sheet 3-5 that cooling cover 3 medial surfaces are embowment, towards also close cold drum 2 drum surfaces, as shown in Figures 2 and 3, in the cross section of cooling cover 3, week is the continuous wave along circular arc line array arrangement, the lateral length of cooling cover 3 is greater than the axial width of cold drum 2 effective working faces, is greater than sheet 1 width.The tuyere 3-3 that is slit on the top of each crest of cooling cover 3 inner side corrugated sheet 3-5, it traverses cooling cover 3 inner sides.Radial distance at the bottom of the crest summit of corrugated sheet 3-5 and trough between point is 105mm, and the circumferential distance between crest summit is 65mm.
This routine cooling cover 3 is divided into upper cooling cover and the lower cooling cover that structure is identical, the right central angle of arc that the top of each crest of cross section of upper and lower cooling cover forms is 60 °, the upper end of the lower end of upper cooling cover arcwall face and lower cooling cover arcwall face joins, between the two, fill sealing gasket, sealing gasket is nitrile rubber sealing gasket.
Upper and lower cooling cover respectively has 12 tuyere 3-3 that are parallel to each other, cooling cover 3 when operating position, each tuyere 3-3 in diameter be with the coaxial cylinder bus of cold drum 2 on, this body diameter is than the large 7mm of cold drum 2 diameter.This routine tuyere 3-3 width is 4mm.The dividing plate 3-9 at cooling cover 3 left and right two ends, upper, lower horizontal side plate 3-7 and outer panels 3-6 are air-inlet cavity 3-2 by the sealing of corrugated sheet 3-5 outboard chambers.
Described left and right dividing plate 3-9 is the flat board vertical with cold drum 2 central shafts, its inner side edge towards cold drum 2 is and the continuous array wavy line of the Wave crest and wave trough form fit of corrugated sheet 3-5 that the inner side edge of left and right dividing plate 3-9 is tightly connected with the left and right limit of corrugated sheet 3-5 respectively.The lateral length of corrugated sheet 3-5 equals the axial width of cold drum 2 effective working faces.The central axes of described upper, lower horizontal side plate 3-7 and cold drum 2, a horizontal edge of upper, lower horizontal side plate 3-7 is tightly connected with the upper and lower limit of corrugated sheet 3-5 respectively.The lateral length of upper, lower horizontal side plate 3-7 is greater than the lateral length of corrugated sheet 3-5.The upper and lower edge on left and right dividing plate 3-9 the inner side of curve limit is connected with the inner face of upper, lower horizontal side plate 3-7 respectively.Another horizontal edge of upper, lower horizontal side plate 3-7, each outer side edges of left and right dividing plate 3-9 is all tightly connected with the outer panels 3-6 of cooling cover 3.Above and below and the lateral surface of the coated cooling cover 3 of outer panels 3-6.Fresh air inlet on the air-inlet cavity 3-2 outer panel of described cooling cover 3 blast pipe 8 that is tightly connected, the external cold wind blower fan of blast pipe 8.
Respectively there is the return air chamber 3-8 of a separation at the left and right two ends of cooling cover 3 air-inlet cavity 3-2, the horizontal left and right end of cooling cover 3 respectively has left and right end plate 3-0, left and right end plate 3-0 is the flat board vertical with cold drum 2 central shafts, its inner side edge towards cold drum 2 is circular arc line, the diameter of this circular arc is identical with the body diameter that each tuyere 3-3 forms, cooling cover 3 is when operating position, and the center of circle of this circular arc is on the axis of cold drum 2.The circular arc inner side edge of the left and right end plate 3-0 arc 3-81 that is respectively tightly connected, the curved surface of this arc 3-81 is identical with the face of cylinder that each tuyere 3-3 forms, cooling cover 3 is when operating position, the axis of this arc 3-81 overlaps with the axis of cold drum 2, arc 3-81 is in the face of two ends, the left and right drum surface outside the effective working face of cold drum 2, the crest of the wavy line of the inner side edge of the circular arc line of the inner side edge of arc 3-81 and dividing plate 3-9 is tangent, a be tightly connected horizontal edge of upper, lower horizontal side plate 3-7 of the upper and lower limit of arc 3-81.The upper edge of left and right end plate 3-0 circular arc inner side edge and lower edge are tightly connected with one end of upper, lower horizontal side plate 3-7 respectively.Another horizontal edge of upper, lower horizontal side plate 3-7, each outer side edges of left and right end plate 3-0 is all tightly connected with outer panels 3-6.Towards the arc 3-81 of cold drum 2, first member plate 3-0, left clapboard 3-9, the return air chamber 3-8 that the space of part upper, lower horizontal side plate 3-7 and part outer panels 3-6 sealing is left end, the structure of the return air chamber 3-8 of right-hand member and the return air chamber 3-8 of left end are symmetrical.The width of return air chamber 3-8 is 85mm, and the trough between corrugated sheet 3-5 outside, tuyere 3-3 forms bar shaped return air channel 3-4, and bar shaped return air channel 3-4 communicates with return air chamber 3-8.On the outer panels 3-6 of the return air chamber 3-8 of left and right end, respectively there is return air hole to connect respectively left and right backwind tube 9, the external air exhauster of left and right backwind tube 9.It between cooling cover 3 outer panels 3-6 and the upper and lower side of inner side corrugated sheet 3-5, is upper, lower horizontal side plate 3-7 sealing.
On the blast pipe 8 of each cooling cover 3 and backwind tube 9, be all furnished with thermometer and pressure gauge, and be provided with adjusting valve, on the fixedly valve plate of adjusting valve, be carved with angle.
The downside of the upside of upper cooling cover air-inlet cavity 3-2 and lower cooling cover air-inlet cavity 3-2 has observation window 4, and the side of each return air chamber 3-8 has observation window 4, and observation window 4 has sealed transparent window to be opened/closed.
As shown in Figures 2 to 4, the cold drum protection of this example structure 3-1 is arranged on the two ends, left and right of cooling cover 3, at two return air chamber 3-8, face on the arc 3-81 of cold drum, two ends, left and right drum surface outside the effective working face of corresponding cold drum 2, this cold drum protection structure 3-1 comprises cell body 3-11 and baffle 3-12, cell body 3-11 is rectangular, cross section is [shape, bend as arc, the arcwall face of bottom land matches with the arc 3-81 of return air chamber 3-8, the arcwall face of bottom land is posted by arc 3-81, and be welded and fixed with it, groove width 70mm, groove depth 3mm, setting-in baffle 3-12 in groove, baffle 3-12 also curves the arc coordinating with cell body 3-11, baffle 3-12 width is identical with the groove width of cell body 3-11, thickness 5mm, baffle 3-12 arc two ends are designed with the boss of 2mm, length is 25mm, left and right terminal drum face sliding friction outside the boss medial surface of baffle 3-12 and the effective working face of cold drum 2.The radius of baffle 3-12 medial surface circular arc is greater than cold drum 2 radius 2mm.Described baffle 3-12 is that polytetrafluoroethylmaterial material is made.
Upper and lower cooling cover 3 is fastened on vertical adjustable plate 5, bolt secured adjusted plate 5 is on the kidney-shaped adjustment hole of frame structure frame 12, be installed on adjusting bolt vertical in frame 12 7 tops and be butted on adjustable plate 5 bottoms, unclamp after the bolt of secured adjusted plate 5, adjusting bolt 7 moves up and down and can make adjustable plate 5 Level Changes.
Ground is provided with the guide rail 10 of level, and guide rail 10 bearing of trends are vertical with cold drum 2 axis.Frame is installed wheel shaft before and after 12 bottom surfaces, and front and back wheel shaft is installed respectively 2 frame wheels 6, and frame wheel 6 is seated on guide rail 10.Drive motors 11 drives and is connected with a wheel shaft of frame 12.Before the operating position and maintenance position of cooling cover 3, frame takes turns on the guide rail 10 of 6 residing points 2 operating position approach switchs and 2 maintenance position approach switchs is respectively set, the holding wire of approach switch is connected with control system.Drive motors 11 is variable-frequency motor.A wheel shaft of frame 12 is also provided with hand-operated mechanism.
Above-described embodiment, is only the specific case that object of the present invention, technical scheme and beneficial effect are further described, and the present invention is not defined in this.All any modifications of making, be equal to replacement, improvement etc., within being all included in protection scope of the present invention within scope of disclosure of the present invention.
Claims (10)
1. the air cooling equipment that plastics thick film stretching production line slab is used, comprises cooling cover and cold wind blower fan, it is characterized in that;
Cooling cover (3) is installed on tab device (2-1) afterwards, cooling cover (3) medial surface be the corrugated sheet that is bent into arc, towards and near cold drum (2) drum surface, in the cross section of cooling cover (3), week is the continuous wave along circular arc line array arrangement, and the lateral length of cooling cover (3) is greater than the effectively axial width of working face of cold drum (2); The tuyere (3-3) that the top of each crest of cooling cover (3) medial surface is slit, it traverses cooling cover (3) inner side, 12～26 tuyeres (3-3) are parallel to each other, cooling cover (3) is when operating position, each tuyere (3-3) in the coaxial cylinder bus of cold drum (2) on, this body diameter is greater than cold drum (2) diameter 5～10mm; Tuyere (3-3) width is 2～6mm, and the right central angle of arc that the top of each crest of corrugated sheet of cooling cover (3) inner side forms is 60 °～130 °,
The dividing plate (3-9) at the left and right two ends of cooling cover (3) slit tuyere, the outer panels (3-6) of upper, lower horizontal side plate (3-7) and cooling cover (3) is air-inlet cavity (3-2) by the sealing of corrugated sheet (3-5) outboard chambers, described left and right dividing plate (3-9) is the flat board vertical with the central shaft of cold drum (2), its inner side edge towards cold drum (2) is the continuous array wavy line with the Wave crest and wave trough form fit of corrugated sheet (3-5), the inner side edge of left and right dividing plate (3-9) is tightly connected with the left and right limit of corrugated sheet (3-5) respectively, and the lateral length of corrugated sheet (3-5) equals the effectively axial width of working face of cold drum (2), the central axes of described upper, lower horizontal side plate (3-7) and cold drum (2), a horizontal edge of upper, lower horizontal side plate (3-7) is tightly connected with the upper and lower limit of corrugated sheet (3-5) respectively, and the lateral length of upper, lower horizontal side plate (3-7) is greater than the lateral length of corrugated sheet (3-5), the upper and lower edge on left and right dividing plate (3-9) the inner side of curve limit is connected with the inner face of upper, lower horizontal side plate (3-7) respectively, another horizontal edge of upper, lower horizontal side plate (3-7), each outer side edges of left and right dividing plate (3-9) is all tightly connected with the outer panels (3-6) of cooling cover (3), above and below and the lateral surface of the coated cooling cover (3) of outer panels (3-6), in cooling cover (3) air-inlet cavity (3-2) outer panels (3-6), have fresh air inlet, the blast pipe that is tightly connected (8), the external cold wind blower fan of blast pipe (8), respectively there is the return air chamber (3-8) of a separation at the left and right two ends of cooling cover (3) air-inlet cavity (3-2), the horizontal left and right end of cooling cover (3) respectively has left and right end plate (3-0), left and right end plate (3-0) is the flat board vertical with cold drum (2) central shaft, its inner side edge towards cold drum (2) is circular arc line, the diameter of this circular arc is identical with the body diameter that each tuyere (3-3) forms, cooling cover (3) is when operating position, and the center of circle of this circular arc is on the axis of cold drum (2), left, the circular arc inner side edge of right end plate (3-0) arc (3-81) that is respectively tightly connected, the curved surface of this arc (3-81) is identical with the face of cylinder that each tuyere (3-3) forms, cooling cover (3) is when operating position, the axis of this arc (3-81) overlaps with the axis of cold drum (2), arc (3-81) is in the face of two ends, the left and right drum surface outside the effective working face of cold drum (2), the crest of the wavy line of the inner side edge of the circular arc line of the inner side edge of arc (3-81) and dividing plate (3-9) is tangent, arc (3-81) upper, on being tightly connected below, one horizontal edge of bottom rail side plate (3-7), another horizontal edge of upper, lower horizontal side plate (3-7), each outer side edges of left and right end plate (3-0) is all tightly connected with outer panels (3-6), and upper edge and the lower edge of left and right end plate (3-0) circular arc inner side edge are tightly connected with one end of upper, lower horizontal side plate (3-7) respectively, arc (3-81) towards cold drum (2), first member plate (3-0), left clapboard (3-9), the return air chamber (3-8) that the space of part upper, lower horizontal side plate (3-7) and cooling cover (3) part outer panels (3-6) sealing is left end, return air chamber (3-8) symmetry of the structure in the return air chamber (3-8) of right-hand member and left end, the width in return air chamber (3-8) is 85～105mm, trough between corrugated sheet (3-5) outside tuyere (3-3) forms bar shaped return air channel (3-4) and communicates with return air chamber (3-8), in the outer panels (3-6) in the return air chamber (3-8) of left and right end, respectively there is return air hole, connect respectively left and right backwind tube (9), the external air exhauster of left and right backwind tube (9).
2. the air cooling equipment that plastics thick film stretching production line slab according to claim 1 is used, is characterized in that:
Radial distance at the bottom of the crest summit of described corrugated sheet (3-5) and trough between point is 100～110mm, and the circumferential distance between crest summit is 60～70mm.
3. the air cooling equipment that plastics thick film stretching production line slab according to claim 1 is used, is characterized in that:
On the blast pipe (8) of described cooling cover (3) and backwind tube (9), be furnished with thermometer and pressure gauge, and be provided with adjusting valve.
4. the air cooling equipment that plastics thick film stretching production line slab according to claim 1 is used, is characterized in that:
Also is furnished with cold drum protection structure (3-1), cold drum protection structure (3-1) is arranged on the two ends, left and right of cooling cover (3), in two return air chambeies (3-8), face on the arc (3-81) of cold drum, this cold drum protection structure (3-1) comprises cell body (3-11) and baffle (3-12), cell body (3-11) is rectangular, cross section is [shape, bend as arc, the arcwall face of bottom land matches with the arc (3-81) of return air chamber (3-8), the arcwall face of bottom land is posted by arc (3-81), and be fixedly connected with it, cell body (3-11) groove width is less than return air chamber (3-8) width, for 65mm～75mm, groove depth 2mm～4mm, setting-in baffle (3-12) in cell body (3-11) groove, baffle (3-12) also curves the arc coordinating with cell body (3-11), baffle (3-12) width is identical with the groove width of cell body (3-11), thickness is greater than cell body (3-11) groove depth, for 4mm～8mm, the radius of baffle (3-12) medial surface circular arc is greater than cold drum (2) radius 1～3mm.
5. the air cooling equipment that plastics thick film stretching production line slab according to claim 4 is used, is characterized in that:
There is the boss of 1mm～3mm at described baffle (3-12) arc two ends, and length is 25mm～35mm, and the boss medial surface of baffle (3-12) contacts with the left and right terminal drum face outside the effective working face of cold drum (2), sliding friction.
6. the air cooling equipment of using according to the plastics thick film stretching production line slab described in any one in claim 1 to 5, is characterized in that:
Described cooling cover (3) is divided into upper cooling cover and the lower cooling cover that structure is identical, the right central angle of arc that in the cross section of upper and lower cooling cover, each crest top of all corrugated sheets forms is 60 °～70 °, the upper end of the lower end of upper cooling cover arcwall face and lower cooling cover arcwall face joins, and fills sealing gasket between the two.
7. the air cooling equipment that plastics thick film stretching production line slab according to claim 6 is used, is characterized in that:
The downside of the air-inlet cavity (3-2) of the upside of the air-inlet cavity of described upper cooling cover (3-2) and lower cooling cover has observation window (4), the side in each return air chamber (3-8) has observation window (4), and observation window (4) has sealed transparent window to be opened/closed.
8. the air cooling equipment of using according to the plastics thick film stretching production line slab described in any one in claim 1 to 5, is characterized in that:
Described cooling cover (3) is fastened on vertical adjustable plate (5), bolt secured adjusted plate (5), on the kidney-shaped adjustment hole of frame structure frame (12), is installed on upper vertical adjusting bolt (7) top of frame (12) and is butted on adjustable plate (5) bottom.
9. the air cooling equipment that plastics thick film stretching production line slab according to claim 8 is used, is characterized in that:
Ground is provided with the guide rail (10) of level, and guide rail (10) bearing of trend is vertical with cold drum (2) axis; Wheel shaft is installed before and after frame (12) bottom surface, and front and back wheel shaft is installed respectively 2 frame wheels (6), and it is upper that frame wheel (6) is seated in guide rail (10), and drive motors (11) drives and is connected with a wheel shaft of frame (12).
10. the air cooling equipment that plastics thick film stretching production line slab according to claim 9 is used, is characterized in that:
Before described cooling cover (3) operating position and maintenance position, operating position approach switch and maintenance position approach switch are respectively set on the guide rail (10) of frame wheel (6) residing point, the holding wire of approach switch is connected with the control system of control drive motors.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310023131.7A CN103057019B (en) | 2013-01-22 | 2013-01-22 | Air cooling device for thick plastic film stretching production line casting sheet |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310023131.7A CN103057019B (en) | 2013-01-22 | 2013-01-22 | Air cooling device for thick plastic film stretching production line casting sheet |
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| CN103057019B true CN103057019B (en) | 2014-11-26 |
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| CN103240869B (en) * | 2013-05-15 | 2015-11-25 | 青岛日能拉伸膜科技股份有限公司 | The air-cooled membrane blowing production line of biaxially oriented polyester film |
| CN105014955B (en) * | 2015-08-20 | 2017-04-12 | 石狮市龙翔五金塑料制品有限公司 | Surface button riveting machine |
| CN113352525B (en) * | 2021-08-11 | 2022-02-01 | 江苏裕兴薄膜科技股份有限公司 | Film production line is with lower back of body cold charge is put |
| CN114665224B (en) * | 2022-04-18 | 2023-12-15 | 四川卓勤新材料科技有限公司 | Air inlet return nozzle assembly and efficient cooling device for back surface of lithium ion battery diaphragm |
| CN116277878B (en) * | 2023-05-24 | 2023-08-22 | 乐山嘉诚建材有限公司 | Tunnel type multidirectional cooling device for PVC pipe production |
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| JP3142913B2 (en) * | 1991-09-20 | 2001-03-07 | 株式会社リコー | Slow cooling device in gate seal injection molding system |
| DE20104922U1 (en) * | 2001-03-21 | 2002-07-25 | Drossbach GmbH & Co KG, 86641 Rain | Corrugated pipe plant |
| CN2761398Y (en) * | 2004-12-16 | 2006-03-01 | 林平和 | Vortex type fast cooling bath |
| CN201244881Y (en) * | 2008-05-29 | 2009-05-27 | 施经东 | Efficient shower cooling box |
| CN203210579U (en) * | 2013-01-22 | 2013-09-25 | 桂林电器科学研究院有限公司 | Air cooling device for piece casting on plastic thick film stretching production line |
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Denomination of invention: Air cooling device for casting sheets in plastic thick film stretching production line Effective date of registration: 20231102 Granted publication date: 20141126 Pledgee: Guoji Finance Co.,Ltd. Pledgor: GUILIN ELECTRICAL EQUIPMENT SCIENTIFIC RESEARCH INSTITUTE Co.,Ltd. Registration number: Y2023980063869 |