CN112978491A - Scattering sun-shading heat-preservation curtain and take-up tension adjusting device of braiding machine for processing same - Google Patents
Scattering sun-shading heat-preservation curtain and take-up tension adjusting device of braiding machine for processing same Download PDFInfo
- Publication number
- CN112978491A CN112978491A CN202110191461.1A CN202110191461A CN112978491A CN 112978491 A CN112978491 A CN 112978491A CN 202110191461 A CN202110191461 A CN 202110191461A CN 112978491 A CN112978491 A CN 112978491A
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- Prior art keywords
- scattering
- friction plate
- sun
- main shaft
- take
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- 238000004321 preservation Methods 0.000 title claims abstract description 27
- 238000009954 braiding Methods 0.000 title claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 32
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 11
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 11
- 229920000092 linear low density polyethylene Polymers 0.000 claims abstract description 11
- 239000004707 linear low-density polyethylene Substances 0.000 claims abstract description 11
- 229920001684 low density polyethylene Polymers 0.000 claims abstract description 11
- 239000004702 low-density polyethylene Substances 0.000 claims abstract description 11
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims abstract description 5
- 239000004926 polymethyl methacrylate Substances 0.000 claims abstract description 5
- 239000008187 granular material Substances 0.000 claims abstract description 4
- 239000004005 microsphere Substances 0.000 claims abstract description 4
- 239000002245 particle Substances 0.000 claims abstract description 4
- -1 polysiloxane Polymers 0.000 claims abstract description 4
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 4
- 125000006850 spacer group Chemical group 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 6
- 238000001746 injection moulding Methods 0.000 claims description 6
- 238000009940 knitting Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000036760 body temperature Effects 0.000 abstract description 5
- 230000003111 delayed effect Effects 0.000 abstract description 5
- 238000001579 optical reflectometry Methods 0.000 abstract description 3
- 238000000149 argon plasma sintering Methods 0.000 abstract description 2
- 238000005286 illumination Methods 0.000 description 10
- 238000004804 winding Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 238000009413 insulation Methods 0.000 description 3
- 238000009941 weaving Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H54/00—Winding, coiling, or depositing filamentary material
- B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
- B65H54/40—Arrangements for rotating packages
- B65H54/54—Arrangements for supporting cores or formers at winding stations; Securing cores or formers to driving members
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G13/00—Protecting plants
- A01G13/02—Protective coverings for plants; Coverings for the ground; Devices for laying-out or removing coverings
- A01G13/0206—Canopies, i.e. devices providing a roof above the plants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H54/00—Winding, coiling, or depositing filamentary material
- B65H54/70—Other constructional features of yarn-winding machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
- B65H59/38—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension
- B65H59/382—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension using mechanical means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
Abstract
The invention discloses a scattering sun-shading heat-preservation curtain and a take-up tension adjusting device of a braiding machine for processing the same, which are characterized in that: the transparent light-scattering sun-shading heat-preservation unit is composed of two or three transparent units, wherein the transparent units are connected to the outer sides of the two or three transparent units, each transparent unit is composed of LLDPE (Linear Low Density polyethylene) materials, HDPE (high Density polyethylene) materials, LDPE (Low Density polyethylene) materials and scattering materials in a mass ratio of 3:3:3.6:0.4, and the scattering materials are uniformly mixed with PMMA (polymethyl methacrylate) granules by polysiloxane microspheres with the average particle size of 5 mu m according to the concentration of 0.6 wt%. The invention has scattering type and stronger light reflectivity, so that the temperature of air and the body temperature of crops in the greenhouse can be reduced to be lower while the crops can obtain more light, and the physiological damage of the crops caused by high-temperature stress can be effectively avoided or delayed.
Description
Technical Field
The invention belongs to the technical field of heat preservation curtains, and particularly relates to a scattering sun-shading heat preservation curtain and a take-up tension adjusting device of a braiding machine for processing the scattering sun-shading heat preservation curtain.
Background
Sunlight is parallel light, which is also referred to as direct light. In sunny days, when the atmospheric transparency is high, sunlight is transmitted to the ground completely in the form of direct light. The projection outline of the object irradiated by the direct light is clear, and the illumination contrast of the light receiving surface and the backlight surface is large. For most vine hanging or long-stalked crops, under the condition of close planting, the traditional direct light can only irradiate the canopy of the crop, and the lower leaves are completely in the shade. However, paradoxically, the canopy of the crop is mostly young leaves, excessive light may generate high temperature or high light stress, and the old leaves at the bottom layer need light but cannot be obtained. Particularly, in a take-up device for processing of an insulation curtain weaving machine, the transmission ratio between a traction wheel and a take-up shaft is constant, and the actual rotating speed of a take-up reel changes from high to low due to the fact that the winding diameter is changed from small to large, so that the take-up device of the existing weaving machine for processing the scattering sun-shading insulation curtain is complex in structure, cannot realize tension adjustment, is uneven in take-up arrangement and low in degree of tightness, can lead to fine drawing of wires due to too large tension, can lead to untidy arrangement of wires due to too small tension, and the like, and causes that an insulation curtain product does not meet requirements, and seriously affects the quality of the product.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a scattering sun-shading heat-preservation curtain and a take-up tension adjusting device of a braiding machine for processing the same, aiming at the defects of the prior art, the scattering sun-shading heat-preservation curtain has a scattering type and stronger light reflectivity, so that the temperature of air and the body temperature of crops in a greenhouse is reduced to be lower while the crops obtain more illumination, and the physiological damage of the crops caused by high-temperature stress is effectively avoided or delayed.
In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a scattering sunshade heat preservation curtain which characterized in that: comprises two or three scattering sun-shading heat-preservation units and transparent units, wherein the outer sides of the two or three scattering sun-shading heat-preservation units are connected with one transparent unit, the scattering sun-shading heat-preservation unit (a) is formed by combining LLDPE (Linear Low Density polyethylene) material, HDPE (high-density polyethylene) material, LDPE (Low-Density polyethylene) material and scattering material, the mass percentage of the LLDPE material, the HDPE material, the LDPE material and the scattering material is 3:3:3.6:0.4, the scattering material is prepared by mechanically mixing polysiloxane microspheres with the average particle size of 5 mu m and PMMA granules according to the concentration of 0.6wt percent, drying at 80 deg.C for 4h, blending with a co-rotating twin-screw extruder, drying at 80 deg.C for 4h, and injection molding with an injection molding machine, the scattering sun-shading heat-preservation unit and the transparent unit are processed and manufactured through a knitting machine, and a take-up tension adjusting device is installed on the knitting machine.
The utility model provides a line tension adjusting device is received with braider to processing of scattering sunshade heat preservation curtain which characterized in that: the servo electric cylinder is fixedly arranged on the mounting support, the mounting support is arranged on the base, the right end of the main shaft is arranged in a mounting hole in the base, the right locking nut is arranged at the right end of the main shaft, the spacer sleeve is arranged on the main shaft and abuts against the left side surface of the base, the right friction disc is arranged on the main shaft and abuts against the spacer sleeve, the chain wheel is fixedly arranged on the right friction disc, the gear is arranged on the right friction disc and is provided with the right friction disc between the gear and the right friction disc, the left friction disc is arranged on the right friction disc through a guide flat key and is provided with the left friction disc between the left friction disc and the gear, the bearing frame install at right friction disc left end, the spring left end install on the bearing frame and the spring right-hand member install on left friction disc, the sliding sleeve install on the main shaft, the bearing inner race install on the sliding sleeve and the bearing outer lane install on the bearing frame, servo electric cylinder piston rod end install on the sliding sleeve through floating the joint, left lock nut install at the main shaft left end and left lock nut top on the sliding sleeve.
The main shaft is arranged on the machine base through a common flat key.
And a gasket is arranged between the left side surface of the right locking nut and the right side surface of the machine base.
The chain wheel is connected with a driving chain wheel on the driving motor through a transmission chain.
According to the invention, more scattered light can reach the bottom layer of crops through scattering, similar illumination can be received by the top layer and the bottom layer leaves, shadow bands formed by the projection of structures and equipment in the greenhouse are weakened by the scattered light, and the illumination distribution in the greenhouse is more uniform; the projection profile of an object irradiated by the back scattered light is fuzzy, even no projection exists, the illumination contrast of each surface of the object is small, and the light receiving is uniform; the temperature of the air in the greenhouse and the body temperature of the crops are reduced to be lower while the crops obtain more illumination, so that the physiological damage of the crops caused by high-temperature stress is effectively avoided or delayed; a driving motor in the take-up tension adjusting device of the braiding machine drives a chain wheel to rotate through chain transmission, a gear is used as an output part to drive a take-up drum to rotate, a sliding sleeve for adjusting the pressure of a spring gradually compresses the spring in the take-up process, and the friction torque of a friction disc is increased along with the increase of the take-up radius; the pressure of the spring is adjusted through the sliding sleeve, and then the position of the sliding sleeve is controlled to adjust the pressure of the spring, so that the aim of adjusting the friction torque is fulfilled; when the first layer of the take-up reel is fully wound and the second layer is wound, the servo electric cylinder drives the sliding sleeve to move rightwards for a certain distance, the bearing seat also moves rightwards for a certain distance, the spring is tightly pressed a little, and the torque output by the gear is increased a little; when the second layer is fully wound and the third layer is wound, the servo electric cylinder drives the sliding sleeve to move rightwards for a certain distance, and the actions are repeated to enable the spring to compress a point; the pressure of the spring is gradually increased by the reciprocating in such a way, so that the winding torque is gradually increased in the winding process, and the constant winding tension is kept.
The invention has the advantages that:
1) the light-scattering type greenhouse has a scattering type and extremely strong light reflectivity, so that the air temperature and the body temperature of crops in the greenhouse are reduced to be lower while the crops obtain more light, and the physiological damage of the crops caused by high-temperature stress is effectively avoided or delayed;
2) the wire take-up device has the advantages that the structure is compact, the wire take-up is stable and reliable, the constant tension wire take-up is realized, the wire take-up tension is kept unchanged in the whole wire take-up process, and the wire take-up is uniformly arranged on the wire disc and is proper in tightness.
Drawings
FIG. 1 is a schematic structural view of a scattering sun-shading heat-insulating curtain of the present invention;
fig. 2 is a structural schematic diagram of a take-up tension adjusting device of a braiding machine.
Wherein the reference numerals are: the device comprises a servo electric cylinder 1, a floating joint 2, a main shaft 3, a mounting support 4, a left locking nut 5, a bearing 6, a bearing seat 7, a left friction disc 8, a gear 9, a right friction disc 10, a machine base 11, a right locking nut 12, a spacer bush 13, a chain wheel 14, a right friction disc 15, a left friction disc 16, a spring 17 and a sliding bush 18.
Detailed Description
The following further describes embodiments of the present invention in conjunction with the attached figures:
the first embodiment is as follows:
the utility model provides a scattering sunshade heat preservation curtain which characterized in that: comprises a scattering sun-shading heat-preservation unit a and transparent units b, wherein the outer sides of two or three scattering sun-shading heat-preservation units a are connected with one transparent unit b, the scattering sun-shading heat-preservation unit a is formed by combining LLDPE (Linear Low Density polyethylene) material, HDPE (high-Density polyethylene) material, LDPE (Low-Density polyethylene) material and scattering material, the mass percentage of the LLDPE material, the HDPE material, the LDPE material and the scattering material is 3:3:3.6:0.4, the scattering material is prepared by mechanically mixing polysiloxane microspheres with the average particle size of 5 mu m and PMMA granules according to the concentration of 0.6wt percent, drying at 80 deg.C for 4h, blending with a co-rotating twin-screw extruder, drying at 80 deg.C for 4h, and injection molding with an injection molding machine, the scattering sun-shading heat-preservation unit a and the transparent unit b are processed and manufactured through a knitting machine, and a take-up tension adjusting device is installed on the knitting machine.
Example two:
the utility model provides a line tension adjusting device is received with braider to processing of scattering sunshade heat preservation curtain which characterized in that: the servo electric cylinder comprises a servo electric cylinder 1, a floating joint 2, a main shaft 3, an installation support 4, a left lock nut 5, a bearing 6, a bearing seat 7, a left friction disc 8, a gear 9, a right friction disc 10, a machine base 11, a right lock nut 12, a spacer bush 13, a chain wheel 14, a right friction disc 15, a left friction disc 16, a spring 17 and a sliding sleeve 18, wherein the servo electric cylinder 1 is fixedly installed on the installation support 4, the installation support 4 is installed on the machine base 11, the right end of the main shaft 3 is installed in an installation hole in the machine base 11, the right lock nut 12 is installed at the right end of the main shaft 3, the spacer bush 13 is installed on the main shaft 3, the spacer bush 13 abuts against the left side surface of the machine base 11, the right friction disc 10 is installed on the main shaft 3, the right friction disc 10 abuts against the spacer bush 13, the chain wheel 14 is fixedly installed on the right friction disc 10, the gear 9 is installed on the right friction disc 10, the left friction disc 8 is installed on the right friction disc 10 through a guide flat key, a left friction disc 16 is installed between the left friction disc 8 and the gear 9, the bearing seat 7 is installed at the left end of the right friction disc 10, the left end of the spring 17 is installed on the bearing seat 7, the right end of the spring 17 is installed on the left friction disc 8, the sliding sleeve 18 is installed on the spindle 3, the inner ring of the bearing 6 is installed on the sliding sleeve 18, the outer ring of the bearing 6 is installed on the bearing seat 7, the tail end of the piston rod of the servo electric cylinder 1 is installed on the sliding sleeve 18 through the floating joint 2, and the left locking nut 5 is installed at the left end of the spindle 3 and the left locking nut 5 abuts.
In the embodiment, the main shaft 3 is mounted on the base 11 by a common flat key.
In the embodiment, a gasket is arranged between the left side surface of the right lock nut 12 and the right side surface of the base 11.
In one embodiment, the sprocket 14 is connected to a drive sprocket on the drive motor via a drive chain.
According to the invention, more scattered light can reach the bottom layer of crops through scattering, similar illumination can be received by the top layer and the bottom layer leaves, shadow bands formed by the projection of structures and equipment in the greenhouse are weakened by the scattered light, and the illumination distribution in the greenhouse is more uniform; the projection profile of an object irradiated by the back scattered light is fuzzy, even no projection exists, the illumination contrast of each surface of the object is small, and the light receiving is uniform; the temperature of the air in the greenhouse and the body temperature of the crops are reduced to be lower while the crops obtain more illumination, so that the physiological damage of the crops caused by high-temperature stress is effectively avoided or delayed; a driving motor in the take-up tension adjusting device of the braiding machine drives a chain wheel 14 to rotate through chain transmission, a gear 9 is used as an output part to drive a take-up drum to rotate, a sliding sleeve 18 for adjusting the pressure of a spring gradually compresses the spring 17 in the take-up process, and the friction torque of a friction disc is increased along with the increase of the take-up radius; the pressure of the spring 17 is adjusted through the sliding sleeve 18, and then the position of the sliding sleeve 18 is controlled to adjust the pressure of the spring 17, so that the aim of adjusting the friction torque is fulfilled; when the first layer of the take-up reel is fully wound and the second layer is wound, the servo electric cylinder 1 drives the sliding sleeve 18 to move rightwards for a certain distance, the bearing seat 7 also moves rightwards for a certain distance, the spring 17 is tightly pressed a little, and the torque output by the gear 9 is increased a little; when the second layer is fully wound and the third layer is wound, the servo electric cylinder 1 drives the sliding sleeve 18 to move rightwards for a certain distance, and the actions are repeated to enable the spring 17 to compress a point; the pressure of the spring 17 is gradually increased by the reciprocating in such a way, so that the wire winding torque is gradually increased in the wire winding process, and the constant wire winding tension is kept.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may be made by those skilled in the art without departing from the principle of the invention.
Claims (5)
1. The utility model provides a scattering sunshade heat preservation curtain which characterized in that: comprises two or three scattering sun-shading heat-preservation units (a) and transparent units (b), wherein the outer sides of the two or three scattering sun-shading heat-preservation units (a) are connected with one transparent unit (b), the scattering sun-shading heat-preservation unit (a) is formed by combining LLDPE (Linear Low Density polyethylene) material, HDPE (high-density polyethylene) material, LDPE (Low-Density polyethylene) material and scattering material, the mass percentage of the LLDPE material, the HDPE material, the LDPE material and the scattering material is 3:3:3.6:0.4, the scattering material is prepared by mechanically mixing polysiloxane microspheres with the average particle size of 5 mu m and PMMA granules according to the concentration of 0.6wt percent, drying at 80 deg.C for 4h, blending with a co-rotating twin-screw extruder, drying at 80 deg.C for 4h, and injection molding with an injection molding machine, the scattering sun-shading heat-preservation unit (a) and the transparent unit (b) are processed and manufactured through a knitting machine, and a take-up tension adjusting device is installed on the knitting machine.
2. The utility model provides a line tension adjusting device is received with braider to processing of scattering sunshade heat preservation curtain which characterized in that: comprises a servo electric cylinder (1), a floating joint (2), a main shaft (3), an installation support (4), a left lock nut (5), a bearing (6), a bearing seat (7), a left friction disc (8), a gear (9), a right friction disc (10), a machine base (11), a right lock nut (12), a spacer bush (13), a chain wheel (14), a right friction disc (15), a left friction disc (16), a spring (17) and a sliding sleeve (18), wherein the servo electric cylinder (1) is fixedly arranged on the installation support (4), the installation support (4) is arranged on the machine base (11), the right end of the main shaft (3) is arranged in an installation hole on the machine base (11), the right lock nut (12) is arranged at the right end of the main shaft (3), the spacer bush (13) is arranged on the main shaft (3) and the spacer bush (13) is propped against the left side surface of the machine base (11), the friction plate assembly is characterized in that the right friction plate (10) is arranged on the main shaft (3), the right friction plate (10) is pressed against the spacer bush (13), the chain wheel (14) is fixedly arranged on the right friction plate (10), the gear (9) is arranged on the right friction plate (10), the right friction plate (15) is arranged between the gear (9) and the right friction plate (10), the left friction plate (8) is arranged on the right friction plate (10) through a guide flat key, the left friction plate (16) is arranged between the left friction plate (8) and the gear (9), the bearing seat (7) is arranged at the left end of the right friction plate (10), the left end of the spring (17) is arranged on the bearing seat (7), the right end of the spring (17) is arranged on the left friction plate (8), the sliding sleeve (18) is arranged on the main shaft (3), the inner ring of the bearing (6) is arranged on the sliding sleeve (18), and the outer ring of the bearing (6) is arranged, the servo electric cylinder (1) piston rod end install on sliding sleeve (18) through floating joint (2), left lock nut (5) install at main shaft (3) left end and left lock nut (5) top on sliding sleeve (18).
3. The take-up tension adjusting device of the braiding machine for processing the scattering sun-shading heat-insulating curtain as claimed in claim 2, wherein: the main shaft (3) is arranged on the machine base (11) through a common flat key.
4. The take-up tension adjusting device of the braiding machine for processing the scattering sun-shading heat-insulating curtain as claimed in claim 2, wherein: and a gasket is arranged between the left side surface of the right locking nut (12) and the right side surface of the machine base (11).
5. The take-up tension adjusting device of the braiding machine for processing the scattering sun-shading heat-insulating curtain as claimed in claim 2, wherein: the chain wheel (14) is connected with a driving chain wheel on the driving motor through a transmission chain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110191461.1A CN112978491A (en) | 2021-02-19 | 2021-02-19 | Scattering sun-shading heat-preservation curtain and take-up tension adjusting device of braiding machine for processing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110191461.1A CN112978491A (en) | 2021-02-19 | 2021-02-19 | Scattering sun-shading heat-preservation curtain and take-up tension adjusting device of braiding machine for processing same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112978491A true CN112978491A (en) | 2021-06-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110191461.1A Pending CN112978491A (en) | 2021-02-19 | 2021-02-19 | Scattering sun-shading heat-preservation curtain and take-up tension adjusting device of braiding machine for processing same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112978491A (en) |
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|---|---|---|---|---|
| GB979021A (en) * | 1961-01-31 | 1965-01-01 | Philips Electronic Associated | Improvements in or relating to wire-winding devices |
| SU825430A1 (en) * | 1979-04-17 | 1981-04-30 | N Proizv Ob Energia | Device for winding continuous material |
| CN2144113Y (en) * | 1992-11-27 | 1993-10-20 | 象山县石浦电力机具厂 | Speed automation tracking rope coiler with constant moment |
| CN102295193A (en) * | 2011-08-11 | 2011-12-28 | 无锡市盛力达机械工程有限公司 | Winding constant-tension control device |
| CN202464933U (en) * | 2012-02-22 | 2012-10-03 | 王至昶 | Tube yarn unwinding mechanism with tension self-adjusting function |
| CN207361446U (en) * | 2017-10-31 | 2018-05-15 | 江苏启运清洁用品织造有限公司 | It is a kind of to determine tension force cloth-winding mechanism |
| CN108495547A (en) * | 2016-01-22 | 2018-09-04 | 卢德维格斯文松股份公司 | Screen for hothouse |
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2021
- 2021-02-19 CN CN202110191461.1A patent/CN112978491A/en active Pending
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|---|---|---|---|---|
| GB979021A (en) * | 1961-01-31 | 1965-01-01 | Philips Electronic Associated | Improvements in or relating to wire-winding devices |
| SU825430A1 (en) * | 1979-04-17 | 1981-04-30 | N Proizv Ob Energia | Device for winding continuous material |
| CN2144113Y (en) * | 1992-11-27 | 1993-10-20 | 象山县石浦电力机具厂 | Speed automation tracking rope coiler with constant moment |
| CN102295193A (en) * | 2011-08-11 | 2011-12-28 | 无锡市盛力达机械工程有限公司 | Winding constant-tension control device |
| CN202464933U (en) * | 2012-02-22 | 2012-10-03 | 王至昶 | Tube yarn unwinding mechanism with tension self-adjusting function |
| CN108495547A (en) * | 2016-01-22 | 2018-09-04 | 卢德维格斯文松股份公司 | Screen for hothouse |
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