CN116572442A - Cooling air ring of film blowing equipment capable of locally adjusting cooling intensity - Google Patents
Cooling air ring of film blowing equipment capable of locally adjusting cooling intensity Download PDFInfo
- Publication number
- CN116572442A CN116572442A CN202310400610.XA CN202310400610A CN116572442A CN 116572442 A CN116572442 A CN 116572442A CN 202310400610 A CN202310400610 A CN 202310400610A CN 116572442 A CN116572442 A CN 116572442A
- Authority
- CN
- China
- Prior art keywords
- annular
- shielding block
- wind
- air guide
- wind shielding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 66
- 238000010096 film blowing Methods 0.000 title claims abstract description 18
- 239000011229 interlayer Substances 0.000 claims abstract description 29
- 238000005192 partition Methods 0.000 claims abstract description 18
- 230000007246 mechanism Effects 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 6
- 230000008569 process Effects 0.000 abstract description 5
- 230000001276 controlling effect Effects 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- 239000012528 membrane Substances 0.000 description 8
- 238000009423 ventilation Methods 0.000 description 8
- 238000007664 blowing Methods 0.000 description 5
- 239000012768 molten material Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/16—Cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/28—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of blown tubular films, e.g. by inflation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/16—Cooling
- B29C2035/1658—Cooling using gas
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
- Air-Flow Control Members (AREA)
Abstract
A cooling air ring of film blowing equipment capable of locally adjusting cooling intensity is characterized in that an annular air guide interlayer is arranged between an annular main air duct and an annular air outlet, and a plurality of radially extending upright partition plates are uniformly arranged in the annular air guide interlayer; the annular air guide interlayer is divided into a plurality of radial air guide channels by upright partition plates; the device comprises a radial air guide cavity channel, an air guide cavity channel section adjusting mechanism, a plurality of air guide cavity channels, a plurality of air guide cavity channel section adjusting mechanisms and a plurality of air guide cavity channel section adjusting mechanisms, wherein each air guide cavity channel section adjusting mechanism comprises a motor, a vertical screw, a nut and a wind shielding block capable of vertically moving; the annular upper clamping plate is provided with a slit for accommodating the wind shielding block; the radial width of the bottom surface of the wind shielding block is the same as the radial width of the annular upper clamping plate seam; the outer side surface of the lower half part of the wind shielding block is inclined from the inner upper part to the outer lower part; an air guide gap is formed between the outer side surface of the wind shielding block and the side wall of the annular upper clamping plate seam. The utility model can greatly reduce the influence on the air flow of the adjacent radial air guide channels in the process of regulating and controlling the air flow of any radial air guide channel.
Description
Technical Field
The utility model belongs to the technical field of film blowing equipment, and particularly relates to a cooling air ring of film blowing equipment capable of locally adjusting cooling intensity. .
Background
When the film blowing equipment works, molten materials are extruded out from the annular die gap of the machine head to form annular film bubbles, and meanwhile, pressure gas is blown into the film bubbles, so that the film bubbles are blown up, and the film bubbles become thinner as the blowing degree is larger. On the other hand, the temperature at which the film bubble is extruded is high, and therefore, cooling by a cooling air ring is required to finally set the film bubble. The cooling air ring comprises an annular main air duct positioned at the outer side and an annular air outlet positioned at the inner side, the annular main air duct is provided with a main air inlet, an annular air guide interlayer is arranged between the annular main air duct and the annular air outlet, and the annular main air duct is communicated to the annular air outlet through the annular air guide interlayer. When the cooling device works, cooling air flows into the annular main air duct from the main air inlet, and then is blown to the annular air outlet through the annular air guide interlayer, and the annular air outlet is close to and faces the membrane bubble, so that the membrane bubble is cooled.
In the process of spreading and distributing, although people strive to keep the thickness and the pressure of the molten material uniform at each point in the circumferential direction of the annular die gap, in practice, due to the errors of mechanical equipment and the limitation of a distributing runner, when the molten material is extruded from the annular die gap, the thickness of each point of a film bubble is difficult to be uniform uniformly in the circumferential direction, namely the thickness of the film bubble is not uniform in the circumferential direction. Similarly, the cooling air ring has only a limited number of 2-4 total air inlets, so that it is difficult to make the air outlet speed of the annular air outlet of the cooling air ring uniform in the circumferential direction.
In the conventional art, although the bubble thickness (i.e., the bubble inflation ratio) can be adjusted by adjusting the gas pressure inside the bubble after the molten material is extruded from the annular die gap, such thickness adjustment is systematic and global (i.e., as the thickness of a certain point in the circumferential direction increases, other points in the circumferential direction must be thickened as well, and vice versa), and fine adjustment cannot be performed on the thickness of a local point in the circumferential direction. Therefore, in the conventional art, after the molten material is extruded from the annular die gap into a bubble, effective remedy is lacking even if the thicknesses of the points in the circumferential direction are not uniform.
In order to solve the above problems, the applicant has designed a cooling air ring of a film blowing device capable of locally adjusting the thickness of a film bubble, and filed a chinese patent application No. CN202120552112.3, the cooling air ring of the film blowing device is uniformly provided with 24-72 radially extending upright partition plates in an annular air guiding interlayer, each upright partition plate is uniformly radially distributed with the center of the cooling air ring as the center, a radial air guiding cavity channel is formed between every two adjacent upright partition plates, each radial air guiding cavity channel is correspondingly provided with an air guiding channel section adjusting mechanism, and each air guiding channel section adjusting mechanism comprises a motor, a vertical screw, a nut and a vertically movable wind shielding block. Thus, the effective ventilation areas of the radial wind guide channels can be controlled independently, and the cooling intensity of each part in the circumferential direction of the membrane bubble can be controlled independently: when the motor drives the corresponding screw cap and the wind shielding block to move upwards through the vertical screw rod, the vertical position of the wind shielding block and the vertical position of the radial wind guiding cavity channel are staggered to be larger, the effective area of the corresponding radial wind guiding cavity channel is larger, so that the cooling degree of the film bubble in the corresponding direction is higher, the temperature of the film bubble in the corresponding direction is lower, the blowing degree is smaller, and the film thickness is thicker; on the contrary, when the motor drives the corresponding screw cap and the wind shielding block to move downwards through the vertical screw, the error opening degree between the vertical position of the wind shielding block and the vertical position of the radial wind guiding cavity is smaller (even the radial wind guiding cavity is completely shielded), the effective sectional area of the corresponding radial wind guiding cavity is smaller, so that the cooling degree of the film bubble in the corresponding direction is lower (even no cooling air flow is completely generated), the temperature of the film bubble in the corresponding direction is higher, the blowing degree is larger, and the film thickness is thinner.
However, the applicant found in production practice that the above structure still has the following problems to be improved: firstly, when the ventilation area of a radial air guide cavity channel of a cooling air ring is greatly reduced or closed according to regulation and control requirements, the cooling air flow which can pass through the radial air guide cavity channel is blocked, the blocked cooling air flow can be forced to flow to the adjacent radial air guide cavity channel, and the air flow of the adjacent radial air guide cavity channel is not autonomously enhanced, which means that the air flow speed of any radial air guide cavity channel can be additionally and greatly disturbed due to the regulation action of the adjacent radial air guide cavity channel, thereby influencing the accuracy of regulating the thickness of each point in the circumferential direction of the membrane bubble, and the integral regulation and control relation is complex, and the regulation and control difficulty is increased; 2. the motor (comprising a control circuit board) of the wind guide channel section adjusting mechanism is always in a working or standby state, continuously emits heat, and the emitted heat is transmitted to the wind shielding block through the screw rod and the screw cap of the metal material, so that the temperature of the wind shielding block is higher, and the wind shielding block is located in the radial wind guide cavity channel (cooling airflow channel), thereby affecting the cooling effect and also affecting the temperature regulation precision. .
Disclosure of Invention
The utility model aims to overcome the defects and provide a cooling air ring of a film blowing device capable of locally adjusting cooling intensity, which can greatly reduce the influence on the air flow of adjacent radial air guide channels in the process of adjusting and controlling the air flow of any radial air guide channel.
The aim can be achieved according to the following scheme: the cooling air ring of the film blowing equipment capable of locally adjusting the cooling intensity comprises an annular main air channel positioned at the outer side of the cooling air ring and an annular air outlet positioned at the inner side of the cooling air ring, wherein the annular main air channel is provided with a main air inlet, an annular air guide interlayer is arranged between the annular main air channel and the annular air outlet, the annular main air channel is communicated to the annular air outlet through the annular air guide interlayer, an annular upper clamping plate is arranged above the annular air guide interlayer, and an annular lower clamping plate is arranged below the annular air guide interlayer; a plurality of vertical partition plates extending radially are uniformly arranged in the annular air guide interlayer; the annular air guide interlayer is divided into a plurality of radial air guide cavity passages by the vertical partition plates, and a radial air guide cavity passage is formed between every two adjacent vertical partition plates; the device comprises a radial wind guide cavity channel, a wind guide cavity channel section adjusting mechanism, a wind guide cavity channel and a wind guide cavity channel, wherein the radial wind guide cavity channel section adjusting mechanism is arranged corresponding to each radial wind guide cavity channel; the output shaft of the motor is connected with a vertical screw rod, and the vertical screw rod and the screw cap are screwed; the annular upper clamping plate is provided with a slit for accommodating the wind shielding block;
when the wind shielding block is positioned at the highest point of the vertical movement track of the wind shielding block, the wind shielding block is positioned in the seam of the annular upper clamping plate, the bottom surface of the wind shielding block is flush with the bottom surface of the annular upper clamping plate, and the vertical position of the wind shielding block is completely staggered with the corresponding radial wind guiding cavity so that the radial wind guiding cavity is completely opened; when the wind shielding block is positioned at the lowest point of the vertical movement track, the bottom surface of the wind shielding block contacts the upper surface of the annular lower clamping plate, and the wind shielding block shields the corresponding radial wind guide cavity channel;
the wind shielding block is mainly characterized in that the radial width of the bottom surface of the wind shielding block is the same as the radial width of the annular upper clamping plate seam; the outer side surface of the lower half part of the wind shielding block is inclined from the inner upper part to the outer lower part; an air guide gap is formed between the outer side surface of the wind shielding block and the side wall of the annular upper clamping plate seam;
when the wind shielding block is positioned at the middle lower section of the vertical movement track, the wind guiding gap corresponding to the wind shielding block is directly communicated with the corresponding radial wind guiding cavity channel;
when the wind shielding block is positioned at the highest point of the vertical movement track, the bottom surface of the wind shielding block shields the seam of the annular upper clamping plate in the corresponding direction, and the wind guiding gap corresponding to the wind shielding block is separated from the corresponding radial wind guiding cavity channel by the bottom of the wind shielding block.
An annular air cavity is further arranged above the annular upper clamping plate, and the upper part of the air guide gap is directly communicated with the annular air cavity; the annular air cavity is provided with a pressure relief hole communicated with the outside; the motor is mounted in an annular air cavity.
The number of the vertical partition plates in the annular air guide interlayer is 24-96, and the number of the radial air guide cavities is 24-96.
When the inner direction and the outer direction are distinguished, one side close to the center of the cooling air ring of the film blowing device is taken as an 'inner', and one side far away from the center of the cooling air ring of the film blowing device is taken as an 'outer'.
The outer side surface of the wind shielding block refers to the surface of the wind shielding block facing away from the center of the cooling wind ring of the film blowing device.
Radial refers to the radial direction of a cooling air ring of the film blowing device.
The utility model has the following advantages and effects:
1. because the outer side surface of the lower half part of the wind shielding block is inclined from the inside to the outside and from the outside to the lower side, and an air guide gap is formed between the wind shielding block and the side wall of the annular upper clamping plate seam, when the ventilation area of one radial air guide cavity channel of the cooling air ring is greatly reduced or closed according to the film bubble thickness regulation and control requirements of the corresponding direction, the wind shielding block of the corresponding direction moves to the middle lower section of the vertical movement track of the wind shielding block, and the cooling air flow blocked by the wind shielding block upwards flows against the outer side of the wind shielding block and is upwards discharged through the air guide gap; when the ventilation area of the radial wind guide cavity channel is smaller (which is equivalent to the lower vertical position of the wind shielding block, the larger the blocking degree of cooling air flow and the larger cooling air flow to be discharged), the larger the effective ventilation area of the wind guide gap is (which is equivalent to the larger effective ventilation area capable of discharging the cooling air flow), so that the cooling air flow of the annular wind guide interlayer part at the outer end side of the wind shielding block in the corresponding direction can keep stable pressure as much as possible in the regulation and control process, the influence on the air flow of the adjacent radial wind guide cavity channels is greatly reduced, the air flow speed fluctuation of the adjacent radial wind guide cavity channels caused by the regulation and control of the air flow speed of a specific radial wind guide cavity channel is basically avoided or lightened, the mutual influence and interference of the radial wind guide cavity channels are avoided, and the thickness regulation and control of each circumferential point of the whole membrane bubble is more accurate and smooth;
2. the cooling air flow which is discharged upwards through the air guide gap can be converged into the annular air cavity above the annular upper clamping plate, and redundant cooling air flow of the annular air cavity can be discharged through the pressure relief hole, so that the pressure of the annular air cavity is prevented from being too high; the cooling air flow in the annular air cavity can continuously cool the motor (comprising the control circuit board), so that the wind shielding block in physical contact with the motor is kept at a lower temperature, the cooling effect of the cooling air flow passing through the radial wind guiding cavity channel on the membrane bubble is ensured, and the temperature regulation and control precision is also improved.
Drawings
Fig. 1 is a schematic perspective view of an embodiment of the present utility model.
Fig. 2 is a cross-sectional view of the structure shown in fig. 1 when the wind shielding block moves to the highest point of its vertical movement locus.
FIG. 3 is a schematic cross-sectional view of K-K in FIG. 2.
Fig. 4 is an enlarged partial schematic view of Q in fig. 3.
Fig. 5 is an enlarged schematic view of part of M in fig. 2.
FIG. 6 is a schematic view of the structure of FIG. 5 after omitting the air guide duct section adjustment mechanism.
Fig. 7 is an enlarged partial schematic view of fig. 5.
Fig. 8 is a state diagram of the structure shown in fig. 2 when the wind shielding block moves to the lowest point of its vertical movement locus.
Fig. 9 is an enlarged partial schematic view of N in fig. 8.
Fig. 10 is an enlarged partial schematic view of fig. 9.
Fig. 11 is a state diagram of the structure shown in fig. 2 when the wind shielding block moves to the middle section of its vertical movement track.
Description of the embodiments
The cooling air ring of the film blowing equipment capable of locally adjusting the cooling intensity is shown in fig. 1, 2, 3 and 4, and comprises an annular main air duct 1 positioned at the outer side of the cooling air ring and an annular air outlet 10 positioned at the inner side of the cooling air ring, wherein the annular air outlet 10 is circumferentially arranged, the annular main air duct 1 is provided with a total air inlet 11, an annular air guide interlayer is arranged between the annular main air duct 1 and the annular air outlet 10, the annular main air duct 1 is communicated to the annular air outlet 10 through the annular air guide interlayer, an annular upper clamping plate 21 is arranged above the annular air guide interlayer, and an annular lower clamping plate 22 is arranged below the annular air guide interlayer; forty-eight radially extending upright partition plates 2 are uniformly arranged in the annular air guide interlayer; the vertical partition plates 2 are uniformly and radially distributed by taking the center of the cooling air ring as the center, the annular air guide interlayer is divided into forty-eight radial air guide cavity passages 20 by the vertical partition plates 2, namely, one radial air guide cavity passage 20 is formed between every two adjacent vertical partition plates 2.
As shown in fig. 2, 5, 6 and 7, a wind guide channel section adjusting mechanism is arranged corresponding to each radial wind guide channel 20, and each wind guide channel section adjusting mechanism comprises a motor 3, a vertical screw 31, a nut 32 and a wind shielding block 4 capable of vertically moving, wherein the nut 32 and the wind shielding block 4 are fixedly connected into a whole and synchronously vertically move; the output shaft of the motor 3 is connected with a vertical screw rod 31, and the vertical screw rod 31 and a screw cap 32 are screwed; the annular upper clamping plate 21 is provided with a slot 210 for receiving the windscreen 4.
As shown in fig. 5 and 7, the radial width (corresponding to the AB length in fig. 7) of the bottom surface of the wind shielding block 4 is the same as the radial width (corresponding to the CG length in fig. 6) of the slit 210 of the annular upper plate; the outer side surface (AF surface in fig. 7) of the lower half of the windshield block 4 is inclined from inside to outside to below (shown as being inclined from point F to point a in fig. 7, the point F being located inside to above the point a, the point a being located outside to below the point F); an air guide gap 5 is formed between the outer side surface (such as the side surface where AF is shown in fig. 7) of the wind shielding block 4 and the side wall (such as the side wall surface where RH is shown in fig. 7) of the annular upper clamping plate slit. As shown in fig. 2, 5 and 6, an annular air cavity 6 is further arranged above the annular upper clamping plate 21, and the upper part of the air guide gap 5 is directly communicated with the annular air cavity 6; the annular air cavity 6 is provided with a pressure relief hole 60 communicated with the outside; the motor 3 is mounted in an annular air chamber 6.
When the wind shielding block 4 is located at the highest point of the vertical movement track, the wind shielding block 4 is located inside the seam 210 of the annular upper clamping plate, the bottom surface (AB surface in fig. 7) of the wind shielding block 4 is level with the bottom surface of the annular upper clamping plate 21, the vertical position of the wind shielding block 4 is completely staggered with the corresponding radial wind guiding cavity channel 20 to enable the radial wind guiding cavity channel 20 to be completely opened, in addition, the bottom surface of the wind shielding block 4 shields the seam 210 of the annular upper clamping plate in the corresponding direction, and a space between the corresponding wind guiding gap 5 of the wind shielding block 4 and the corresponding radial wind guiding cavity channel 20 is separated by the bottom of the wind shielding block 4, as shown in fig. 5, 6 and 7;
when the wind shielding block 4 is positioned at the lowest point of the vertical movement track, the bottom surface of the wind shielding block 4 contacts the upper surface of the annular lower clamping plate 22, and the wind shielding block 4 shields the corresponding radial wind guiding cavity channel 20, as shown in fig. 8 and 9 and 10;
when the wind shielding block 4 is located at the middle lower section of the vertical movement track, the wind guiding gap 5 corresponding to the wind shielding block 4 is directly communicated with the corresponding radial wind guiding cavity channel 20, as shown in fig. 9, 10 and 11.
The principle of use of the above embodiment is as follows:
when in operation, the membrane bubbles continuously pass by the annular air outlet 10 and vertically run; the cooling air flow is blown from the annular main air duct 1 to the annular air outlet 10 through each radial air guide cavity channel 20, and finally blown to the film bubble; when the partial thickness of certain points on the circumference of the film bubble is detected to be larger, a motor 3 of a section adjusting mechanism of the air guide cavity channel in the corresponding direction can be started to enable a wind shielding block 4 in the corresponding direction to move downwards, so that the ventilation area of the radial air guide cavity channel 20 in the corresponding direction is reduced, the cooling air flow blown to the film bubble through the radial air guide cavity channel 20 in the corresponding direction is reduced, the temperature of the film bubble in the corresponding direction is increased, the blowing degree of the film bubble in the corresponding direction is increased, and the thickness is thinned; when the wind shielding block 4 in the corresponding direction moves downwards to the lowest point of the vertical movement track, the bottom surface of the wind shielding block 4 contacts the upper surface of the annular lower clamping plate 22, and the wind shielding block 4 shields the corresponding radial wind guiding cavity channel 20. In the above process, the intercepted part of the cooling air flow will flow upwards against the outer side of the wind shielding block 4 and be discharged upwards through the wind guiding gap 5 to flow into the annular air cavity 6, as shown by arrows in fig. 10 and 11 (the annular air cavity 6 is provided with a pressure relief hole 60, so that the air pressure of the annular air cavity 6 is basically stable);
when detecting that the local thickness of some points on the circumference of the film bubble is smaller, the motor 3 of the section adjusting mechanism of the air guide cavity channel in the corresponding direction can be started to enable the air shielding block 4 in the corresponding direction to move upwards, so that the ventilation area of the radial air guide cavity channel 20 in the corresponding direction is increased, the cooling air flow blown to the film bubble through the radial air guide cavity channel 20 in the corresponding direction is enhanced, the temperature of the film bubble in the corresponding direction is reduced, the blowing degree of the film bubble in the corresponding direction is reduced, and the thickness is thickened; when the wind shielding block 4 in the corresponding direction moves up to the highest point of the vertical movement track, the bottom surface of the wind shielding block 4 shields the seam 210 of the annular upper clamping plate in the corresponding direction, the wind guiding gap 5 corresponding to the wind shielding block 4 and the corresponding radial wind guiding cavity channel 20 are separated by the bottom of the wind shielding block 4, and the cooling air flows to the annular air outlet 10/the membrane bubble completely, as shown by the arrow in fig. 7.
When the wind shielding block 4 moves up to the middle of its vertical movement track, a part of the airflow in the corresponding direction flows to the annular air outlet 10, and the other part flows to the wind guiding gap 5, as shown in fig. 11.
In the above embodiment, the number of the upright partition plates in the annular air guide interlayer can be changed to 24 or 96, and the number of the corresponding radial air guide cavities is 24 or 96.
Claims (3)
1. The cooling air ring of the film blowing equipment capable of locally adjusting the cooling intensity comprises an annular main air channel positioned at the outer side of the cooling air ring and an annular air outlet positioned at the inner side of the cooling air ring, wherein the annular main air channel is provided with a main air inlet, an annular air guide interlayer is arranged between the annular main air channel and the annular air outlet, the annular main air channel is communicated to the annular air outlet through the annular air guide interlayer, an annular upper clamping plate is arranged above the annular air guide interlayer, and an annular lower clamping plate is arranged below the annular air guide interlayer; a plurality of vertical partition plates extending radially are uniformly arranged in the annular air guide interlayer; the annular air guide interlayer is divided into a plurality of radial air guide cavity passages by the vertical partition plates, and a radial air guide cavity passage is formed between every two adjacent vertical partition plates; the device comprises a radial wind guide cavity channel, a wind guide cavity channel section adjusting mechanism, a wind guide cavity channel and a wind guide cavity channel, wherein the radial wind guide cavity channel section adjusting mechanism is arranged corresponding to each radial wind guide cavity channel; the output shaft of the motor is connected with a vertical screw rod, and the vertical screw rod and the screw cap are screwed; the annular upper clamping plate is provided with a slit for accommodating the wind shielding block;
when the wind shielding block is positioned at the highest point of the vertical movement track of the wind shielding block, the wind shielding block is positioned in the seam of the annular upper clamping plate, the bottom surface of the wind shielding block is flush with the bottom surface of the annular upper clamping plate, and the vertical position of the wind shielding block is completely staggered with the corresponding radial wind guiding cavity so that the radial wind guiding cavity is completely opened; when the wind shielding block is positioned at the lowest point of the vertical movement track, the bottom surface of the wind shielding block contacts the upper surface of the annular lower clamping plate, and the wind shielding block shields the corresponding radial wind guide cavity channel;
the method is characterized in that: the radial width of the bottom surface of the wind shielding block is the same as the radial width of the annular upper clamping plate seam; the outer side surface of the lower half part of the wind shielding block is inclined from the inner upper part to the outer lower part; an air guide gap is formed between the outer side surface of the wind shielding block and the side wall of the annular upper clamping plate seam;
when the wind shielding block is positioned at the middle lower section of the vertical movement track, the wind guiding gap corresponding to the wind shielding block is directly communicated with the corresponding radial wind guiding cavity channel;
when the wind shielding block is positioned at the highest point of the vertical movement track, the bottom surface of the wind shielding block shields the seam of the annular upper clamping plate in the corresponding direction, and the wind guiding gap corresponding to the wind shielding block is separated from the corresponding radial wind guiding cavity channel by the bottom of the wind shielding block.
2. The film blowing apparatus cooling air ring capable of locally adjusting cooling intensity according to claim 1, wherein: an annular air cavity is further arranged above the annular upper clamping plate, and the upper part of the air guide gap is directly communicated with the annular air cavity; the annular air cavity is provided with a pressure relief hole communicated with the outside; the motor is mounted in an annular air cavity.
3. The film blowing apparatus cooling air ring capable of locally adjusting cooling intensity according to claim 1 or 2, wherein: the number of the vertical partition plates in the annular air guide interlayer is 24-96, and the number of the radial air guide cavities is 24-96.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310400610.XA CN116572442A (en) | 2023-04-14 | 2023-04-14 | Cooling air ring of film blowing equipment capable of locally adjusting cooling intensity |
| DE202023105950.3U DE202023105950U1 (en) | 2023-04-14 | 2023-10-16 | A cooling air ring for film blowing machines with locally adjustable cooling intensity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310400610.XA CN116572442A (en) | 2023-04-14 | 2023-04-14 | Cooling air ring of film blowing equipment capable of locally adjusting cooling intensity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116572442A true CN116572442A (en) | 2023-08-11 |
Family
ID=87534917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310400610.XA Pending CN116572442A (en) | 2023-04-14 | 2023-04-14 | Cooling air ring of film blowing equipment capable of locally adjusting cooling intensity |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN116572442A (en) |
| DE (1) | DE202023105950U1 (en) |
-
2023
- 2023-04-14 CN CN202310400610.XA patent/CN116572442A/en active Pending
- 2023-10-16 DE DE202023105950.3U patent/DE202023105950U1/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| DE202023105950U1 (en) | 2024-01-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5281375A (en) | Process and device for producing bubble-film | |
| KR100445950B1 (en) | Air cooling systems for preform molding | |
| CN201313376Y (en) | Adjustment mechanism of cooling device of tubular thin layer production equipment | |
| CA2088820C (en) | Air shroud device for a blown film extrusion line | |
| US4701202A (en) | Moulding apparatus for glassware forming machine | |
| US4846645A (en) | Bubble forming and stabilizing device for use in continuous extrusion process for making a blown film | |
| CN116572442A (en) | Cooling air ring of film blowing equipment capable of locally adjusting cooling intensity | |
| JPS60228125A (en) | Air ring for manufacture of inflation film | |
| US4145177A (en) | Air cooling ring for plastic film with independent lubricating air for film guide surface | |
| CN101468365B (en) | Wind-guiding device and workpiece-cooling device using the wind-guiding device | |
| US7131172B2 (en) | Textile machine texturing system and texturing nozzle therefor | |
| EP0102820B1 (en) | Mould arrangement for glassware forming machine | |
| CN215512256U (en) | Film blowing equipment cooling air ring capable of locally adjusting cooling intensity | |
| EP0153801B1 (en) | Cooling arrangement for a mould of a glassware forming machine of the individual section type | |
| JP2858051B2 (en) | Method and apparatus for manufacturing bubble film | |
| CN217514509U (en) | Film blowing equipment cooling air ring capable of locally adjusting thickness of film bubble | |
| CN215791721U (en) | Local film bubble thickness adjusting structure of cooling air ring of film blowing equipment | |
| CN111016124B (en) | Device and method for accurately controlling diameter of film bubble | |
| TW202207272A (en) | Gas flow regulating device, gas flow regulating method, and plasma processing device flexibly adjusting the distribution of the gas cavity in the gas baffle in the plasma processing device and the gas delivery amount in the gas cavity | |
| CN221456798U (en) | Three-in-one automatic wind ring structure of film blowing machine | |
| EP0293661A1 (en) | A mould assembly for a cyclicly operable machine for forming glass articles | |
| JP2002226223A (en) | Cooling apparatus for glass product mold | |
| JPH1148307A (en) | Crosshead for supplying resin | |
| JP2549791B2 (en) | Air ring device | |
| CN214188067U (en) | Double-air-duct air ring for plastic mechanical equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |