CN210657299U - Device for ensuring consistency of polyethylene fiber stretching multiples - Google Patents
Device for ensuring consistency of polyethylene fiber stretching multiples Download PDFInfo
- Publication number
- CN210657299U CN210657299U CN201921348172.2U CN201921348172U CN210657299U CN 210657299 U CN210657299 U CN 210657299U CN 201921348172 U CN201921348172 U CN 201921348172U CN 210657299 U CN210657299 U CN 210657299U
- Authority
- CN
- China
- Prior art keywords
- roller
- guide roller
- water
- beam splitting
- ensuring
- 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.)
- Active
Links
- 239000000835 fiber Substances 0.000 title claims abstract description 74
- 239000004698 Polyethylene Substances 0.000 title claims abstract description 20
- -1 polyethylene Polymers 0.000 title claims abstract description 20
- 229920000573 polyethylene Polymers 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 74
- 239000010985 leather Substances 0.000 claims abstract description 22
- 238000010438 heat treatment Methods 0.000 claims description 37
- 238000010521 absorption reaction Methods 0.000 claims description 17
- 238000001035 drying Methods 0.000 claims description 13
- 238000005485 electric heating Methods 0.000 claims description 9
- 239000002243 precursor Substances 0.000 claims description 9
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 238000001704 evaporation Methods 0.000 claims description 4
- 238000012681 fiber drawing Methods 0.000 claims description 4
- 230000008020 evaporation Effects 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 2
- 235000006506 Brasenia schreberi Nutrition 0.000 claims 1
- 244000267222 Brasenia schreberi Species 0.000 claims 1
- 238000002360 preparation method Methods 0.000 abstract description 2
- 238000003825 pressing Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 26
- 238000000605 extraction Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 description 4
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 description 3
- 238000007731 hot pressing Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000008521 reorganization Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Landscapes
- Treatment Of Fiber Materials (AREA)
Abstract
The utility model belongs to a polyethylene fiber preparation equipment, in particular to a device for ensuring the consistency of the stretching multiple of polyethylene fiber, which comprises a raw silk box, a guide roller component for drawing the primary fiber, a beam splitting component arranged between the raw silk box and the guide roller component and a leather press roller arranged on the guide roller component for providing the pre-tightening force for the stretching of the primary fiber, wherein the beam splitting component comprises a fixed rod and a beam splitting retaining ring and a beam splitting baffle which are arranged on the fixed rod at equal intervals, a roller distance adjusting device is arranged on the leather press roller, the guide roller component comprises a left lower guide roller, an upper guide roller and a right lower guide roller which are arranged in a triangle shape, the upper guide roller is tangent to the leather press roller, and a water absorbing component is arranged at the bottom of the right lower guide roller, the utility model provides a certain pre-tightening force before the stretching of the primary fiber by arranging the leather press roller, thereby preventing the phenomenon of inconsistent stretching multiple, the leather pressing roller is connected with the upper guide roller through the roller spacing adjusting device and always keeps tangent with the upper guide roller, and appropriate pretightening force is provided.
Description
Technical Field
The utility model belongs to a preparation equipment of polyethylene fiber specifically is to involve a device of guaranteeing polyethylene fiber drawing multiple uniformity.
Background
The ultra-high molecular weight polyethylene fiber is also called high-strength high-modulus polyethylene fiber, high-orientation polyethylene fiber and high-performance polyethylene fiber. The ultra-high molecular weight polyethylene fiber has high strength, high modulus and high orientation degree, and is widely used for manufacturing bulletproof protective articles, ropes, cables, fish nets and sports equipment.
The fiber drawing is to make the polymer chains in the polymer align along the direction of external force, thereby improving the structure and mechanical property of the polymer. In the stretching process, if the force is too large, the polymer is damaged, and if the force is too small, the stretching effect is difficult to achieve, so that the proper force is a key for stretching. In the production process of chemical fibers, fibers formed by coagulation spinning are collectively called as nascent fibers. Because the structure of the nascent fiber is not stable, the sequence state of the supermolecular structure of the fiber is low, the physical and mechanical properties can not meet the use requirements, the nascent fiber needs to be stretched and dried after being showered by hot water to obtain the ultra-high molecular weight polyethylene fiber, wherein the stretching of the nascent fiber is crucial to the improvement of the mechanical properties of subsequent finished products, in the existing stretching equipment, the original pre-tightening force of each nascent fiber on the same stretching roller is slightly different, so that the stretching force of each nascent fiber on the same stretching structure is inconsistent, and finally, the stretching times of the polyethylene fibers stretched in the same process are inconsistent, so that the uniformity of the structural properties of the fiber is poor, and the quality of the finished products is influenced. Meanwhile, in the drying process after stretching, the length of the drying box is not increased due to the existence of hot water residual stains, the speed of the transmission roller is not reduced, the stay time of the stretched nascent fibers in the drying box is prolonged, the working efficiency is reduced, or the whole size of the whole equipment is increased, the power consumption is increased, meanwhile, the heating effect of the hot water spraying heating adopted at present is poor, the uniformity is poor, and the subsequent stretching effect is influenced.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a tensile device that multiple uniformity is just guaranteed to polyethylene fiber to tensile effectual, heating and dry even, work efficiency height of tensile.
The content of the utility model includes the precursor case, be used for doing towed guide roller subassembly, setting beam splitting subassembly and the skin compression roller of setting on the guide roller subassembly for the nascent fibre tensile pretightning force of providing for the nascent fibre between precursor case and the guide roller subassembly, the beam splitting subassembly includes that dead lever and equidistance interval set up beam splitting retaining ring and beam splitting separation blade on the dead lever, be provided with roll spacing adjusting device on the skin compression roller, guide roller subassembly is including the left lower deflector roll that is triangle-shaped setting, go up deflector roll and right lower deflector roll, goes up the deflector roll tangent with the skin compression roller, deflector roll bottom is provided with the subassembly that absorbs water under the right side.
The utility model discloses still including setting up the drying cabinet in deflector roll one side under the right side and setting up the heating element in deflector roll bottom under a left side.
Still further, the heating assembly includes a hot water tank and an electric heating element disposed within the hot water tank.
Furthermore, the subassembly that absorbs water includes the fixed bolster, is used for adsorbing the roller that absorbs water of remaining water stain and extraction liquid on the primary fiber and is used for switching the runing rest of the roller that absorbs water, and the runing rest passes through the bearing setting and is connected with the rotating electrical machines at the both ends of fixed bolster and one end, and the runing rest below is provided with the header tank.
Furthermore, the water absorption assembly also comprises an engaging gear connected to the end part of the water absorption roller and a water throwing motor arranged on one side of the water collecting tank, and a driving gear engaged with the engaging gear is arranged on the water throwing motor.
Furthermore, a liftable water shielding cover is arranged on the fixed support.
Furthermore, a tension roller for adjusting the tightness of the primary fiber is arranged between the beam splitting assembly and the left lower guide roller.
Furthermore, the roller spacing adjusting device comprises a support and a pressure spring, a sliding groove is formed in the support, the leather pressure roller is arranged in the sliding groove through a bearing, one side of the pressure spring is arranged at the top of the sliding groove, and the other side of the pressure spring is arranged at the outer end of the bearing.
Furthermore, a top cover for reducing the evaporation of the hot water is arranged on the hot water tank.
Furthermore, an electric heating element and a hot-pressing roller are arranged in the drying box.
The utility model has the advantages that the leather press roller is arranged to provide a certain pretightening force before the primary fiber is stretched, so as to prevent the phenomenon of inconsistent stretching times caused by slipping during stretching, the leather press roller is always tangent to the upper guide roller through the connection of the roller distance adjusting device, and the primary fiber is not damaged by providing a proper pretightening force; through setting up the beam splitting subassembly, many nascent fibers loop through the beam splitting subassembly and carry out the beam splitting, draw to the guide roller subassembly in the precursor case in order, through setting up the subassembly that absorbs water, absorb liquid heating medium and extract before tensile, improve tensile quality.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a second embodiment of the present invention.
Fig. 3 is a schematic structural diagram of the middle beam splitting assembly of the present invention.
Fig. 4 is the structure schematic diagram of the middle leather pressing roller and the roller spacing adjusting device of the utility model.
In the figure, a raw silk box 1, a guide roller 2, a beam splitting assembly 3, a fixing rod 31, a beam splitting check ring 32, a beam splitting baffle 33, a tension roller 4, a left lower guide roller 5, an upper guide roller 6, a leather press roller 7, a bracket 71, a pressure spring 72, a sliding groove 73, a right lower guide roller 8, a water absorbing roller 9, a rotating bracket 10, a fixed bracket 11, a water shielding cover 12, an electric guide rail 13, a driving gear 14, a meshing gear 15, a water collecting tank 16, a belt 17, a rotating motor 18, a drying box 19, a hot pressing roller 20, a hot water box 21 and an electric heating element 22 are arranged.
Detailed Description
As shown in fig. 1-4, the present invention comprises a raw filament box 1 for storing raw filaments, a guide roller assembly for drawing raw fibers, a beam splitting assembly 3 disposed between the raw filament box 1 and the guide roller assembly, and a leather press roller 7 disposed on the guide roller assembly for providing pre-tightening force for drawing raw fibers, wherein the leather press roller 7 can prevent slippage during the drawing process of raw fibers, the beam splitting assembly 3 comprises a fixing rod 31, a beam splitting retainer ring 32 and a beam splitting retainer sheet 33 disposed on the fixing rod 31 at equal intervals, the beam splitting retainer ring 32 and the beam splitting retainer sheet 33 are used for splitting the raw fibers conveyed from the raw filament box 1 in different directions, the leather press roller 7 is provided with a roller distance adjusting device for adjusting the pre-tightening force of the guide roller assembly, the guide roller assembly comprises a left lower guide roller 5, an upper guide roller 6 and a right lower guide roller 8 arranged in a triangular shape, the upper guide roller 6 is tangent to the leather press roller 7, the bottom of the lower right guide roller 8 is provided with a water absorption assembly, and the water absorption assembly is used for absorbing residual water stains and extraction liquid on the primary fibers before the primary fibers are stretched, so that good conditions are provided for subsequent stretching.
Wherein, precursor case 1 is provided with a plurality ofly, and the as-spun fibre after the solidification spinning shaping is neatly put in precursor case 1, sets up a plurality ofly and can improve work efficiency, and on the as-spun fibre in a plurality of precursor cases 1 passed through 2 direction beam splitting component 3 of guide roll, beam splitting component 3 made the as-spun fibre in a plurality of precursor cases 1 mutual noninterference when carrying, prevents the winding.
The utility model discloses still including setting up 19 and the heating element who sets up 5 bottoms in deflector roll under a left side of the drying cabinet of 8 one sides of deflector roll under the right side, heating element is used for going up outer even heating for nascent fibre before the drawing, make liquid heating medium surround nascent fibre, the heating effect is even, it is comprehensive, 19 drying cabinet are used for evaporating remaining liquid heating medium on the nascent fibre, carry out the second time heating for nascent fibre when being follow-up tensile work simultaneously, the heating makes nascent fibre's macromolecular structure reorganization, be favorable to tensile work on next step, make cracked phenomenon can not appear after the nascent fibre is tensile.
The heating assembly comprises a hot water tank 21 and an electric heating element 22 arranged in the hot water tank 21, wherein a liquid heating medium is stored in the hot water tank 21, the electric heating element 22 is used for heating, the temperature of the electric heating element 22 can be set by a user, and the temperature of the liquid heating medium is set according to actual needs, wherein at least one part of the bottom of the lower left guide roller 5 is soaked in the liquid heating medium, so that the heating uniformity of the nascent fibers is ensured.
In order to discharge extraction liquid and liquid heating medium in the nascent fibre fast before drawing, be provided with the subassembly that absorbs water in the bottom of deflector roll 8 under the right, the subassembly that absorbs water includes fixed bolster 11, is used for adsorbing residual water stain on the nascent fibre after drawing, the water absorption roller 9 of liquid heating medium and extraction liquid and the runing rest 10 that is used for switching water absorption roller 9, runing rest 10 is connected with rotating electrical machines 18 through bearing setting at the both ends of fixed bolster 11 and one end, and runing rest 10 below is provided with header tank 16.
Wherein, the cladding of roller 9 that absorbs water outside is provided with the one deck sponge that absorbs water, and roller 9 that absorbs water can set up to be provided with a plurality ofly through runing rest 10 to in the sponge that absorbs water absorb water and absorb liquid heating medium saturation back switch new roller 9 that absorbs water, runing rest 10 below is provided with water catch bowl 16 for collect the absorbent liquid heating medium of roller 9 that absorbs water and extract.
The water absorption assembly further comprises an engaging gear 15 connected to the end of the water absorption roller 9 and a water throwing motor arranged on one side of the water collecting tank, a driving gear 14 engaged with the engaging gear 15 is arranged on the water throwing motor, the water absorption roller 9 which is saturated in adsorption is driven to rotate through the water throwing motor, and a liquid heating medium and extraction liquid on the water absorption roller 9 are thrown out through centrifugal force, so that the liquid heating medium and the extraction liquid are continuously sucked under the lower right guide roller 8 through the rotating support 10 in a rotating mode.
The water-retaining cover 12 is characterized in that the fixed support 11 is provided with a liftable water-retaining cover 12, the water-retaining cover 12 guides a liquid heating medium and extraction liquid thrown out when a water throwing motor throws water into the water collecting tank 16, the water-retaining cover 12 is connected to the bottom of the fixed support 11 through an electric lifting rod and can ascend when the rotary support 10 rotates to provide space for the rotary switching of the water absorption roller 9, and the water absorption roller 9 descends to retain water after rotating.
Still be provided with between beam splitting subassembly 3 and the left lower deflector roll 5 and be used for adjusting the tight roller 4 of nascent fibre, tight roller 4 principle is similar with the tight pulley that rises, can be according to the different elasticity degree of nascent fibre, the automatic adjustment tensile force.
The roller spacing adjusting device comprises a support 71 and a pressure spring 72, a sliding groove 73 is formed in the support 71, a leather pressure roller 7 is arranged in the sliding groove 73 through a bearing, one side of the pressure spring 72 is arranged at the top of the sliding groove 73, the other side of the pressure spring is arranged at the outer end of the bearing, the leather pressure roller 7 is always tangent to an upper guide roller 6 through the arrangement of the pressure spring 72, and a certain pretightening force is kept, so that the phenomenon that the stretching multiple is inconsistent due to the fact that the nascent fibers slip or the pretightening force is insufficient in the subsequent stretching process is avoided.
In order to reduce evaporation loss of the liquid heating medium, a top cover is arranged on the hot water tank 21.
In order to further increase the efficiency of the drying box 19, an electric heating element 22 and a hot-press roller 20 are provided in the drying box 19.
The utility model discloses concrete theory of operation: when the device is used, the nascent fibers are integrally stacked in the protofilament box 1, and enter the lower left guide roller 5 through the guide roller 2, the beam splitting assembly 3 and the tension roller 4, and simultaneously pass through the heating assembly, the heating assembly is used for heating the nascent fibers before stretching, so that the nascent fibers are surrounded by a liquid heating medium, the macromolecular structure of the nascent fibers is recombined through heating, the next stretching work is facilitated, the phenomenon of breakage of the nascent fibers after stretching is avoided, after the nascent fibers are heated, the nascent fibers pass through the upper guide roller 6 and are simultaneously provided with pretightening force by the leather pressure roller 7, the leather pressure roller 7 is always tangent to the upper guide roller 6 through the roller distance adjusting device, the liquid heating medium and extraction liquid are removed through the water absorbing assembly through the lower right guide roller 8, finally the liquid heating medium and the extraction liquid are removed through the drying box 19 for the second time, and finally the nascent fibers enter.
Claims (10)
1. The utility model provides a guarantee device of polyethylene fiber drawing multiple uniformity, characterized by, include precursor case (1), be used for doing towed guide roller subassembly, set up beam splitting subassembly (3) between precursor case (1) and guide roller subassembly and set up leather compression roller (7) that provide the pretightning force for the nascent fiber drawing on the guide roller subassembly for nascent fiber, beam splitting subassembly (3) include dead lever (31) and equidistant interval set up beam splitting retaining ring (32) and beam splitting separation blade (33) on dead lever (31), be provided with roller apart from adjusting device on leather compression roller (7), guide roller subassembly is including being left lower guide roller (5), last guide roller (6) and right lower guide roller (8) that triangle-shaped set up, goes up guide roller (6) and leather compression roller (7) tangent, right lower guide roller (8) bottom is provided with the subassembly that absorbs water.
2. The apparatus for ensuring the draw ratio uniformity of polyethylene fibers according to claim 1, further comprising a drying box (19) disposed at one side of the lower right guide roll (8) and a heating unit disposed at the bottom of the lower left guide roll (5).
3. Device for ensuring the consistency of the draw ratio of polyethylene fibres according to claim 2, characterised in that said heating assembly comprises a hot water tank (21) and an electric heating element (22) arranged inside the hot water tank (21).
4. The device for ensuring the drawing multiple consistency of the polyethylene fibers as claimed in claim 1, wherein the water absorption assembly comprises a fixed support (11), a water absorption roller (9) for absorbing residual water stains and extract liquor on the nascent fibers and a rotating support (10) for switching the water absorption roller (9), the rotating support (10) is arranged at two ends of the fixed support (11) through bearings, one end of the rotating support is connected with a rotating motor (18), and a water collection tank (16) is arranged below the rotating support (10).
5. The apparatus for ensuring the drawing ratio uniformity of polyethylene fibers according to claim 4, wherein the water absorption assembly further comprises a meshing gear (15) connected to the end of the water absorption roller (9) and a water throwing motor arranged on one side of the water collection tank, and the water throwing motor is provided with a driving gear (14) meshed with the meshing gear (15).
6. The device for ensuring the drawing power consistency of polyethylene fibers according to claim 4, characterized in that the fixed support (11) is provided with a liftable water shield (12).
7. The apparatus for ensuring the drawing ratio consistency of polyethylene fibers according to claim 1, wherein a tension roller (4) for adjusting the tightness of the nascent fibers is further arranged between the beam splitting assembly (3) and the lower left guide roller (5).
8. The device for ensuring the drawing multiple consistency of the polyethylene fibers according to claim 1, wherein the roller spacing adjusting device comprises a bracket (71) and a pressure spring (72), a sliding groove (73) is formed in the bracket (71), the leather pressure roller (7) is arranged in the sliding groove (73) through a bearing, one side of the pressure spring (72) is arranged at the top of the sliding groove (73), and the other side of the pressure spring is arranged at the outer end of the bearing.
9. Device for ensuring the uniformity of the draw ratio of polyethylene fibers according to claim 3, characterized in that the hot water tank (21) is provided with a top cover for reducing the evaporation of hot water.
10. The apparatus for ensuring the draw ratio uniformity of polyethylene fibers according to claim 2, wherein the drying oven (19) is provided with electric heating elements (22) and a hot-press roll (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921348172.2U CN210657299U (en) | 2019-08-19 | 2019-08-19 | Device for ensuring consistency of polyethylene fiber stretching multiples |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921348172.2U CN210657299U (en) | 2019-08-19 | 2019-08-19 | Device for ensuring consistency of polyethylene fiber stretching multiples |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210657299U true CN210657299U (en) | 2020-06-02 |
Family
ID=70841122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921348172.2U Active CN210657299U (en) | 2019-08-19 | 2019-08-19 | Device for ensuring consistency of polyethylene fiber stretching multiples |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210657299U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112238540A (en) * | 2020-08-31 | 2021-01-19 | 福建泉州新耀新材料科技有限公司 | Production device and preparation process of low-odor regenerated polypropylene composite material for automobile |
-
2019
- 2019-08-19 CN CN201921348172.2U patent/CN210657299U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112238540A (en) * | 2020-08-31 | 2021-01-19 | 福建泉州新耀新材料科技有限公司 | Production device and preparation process of low-odor regenerated polypropylene composite material for automobile |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210657299U (en) | Device for ensuring consistency of polyethylene fiber stretching multiples | |
| CN104562217A (en) | Processing system for processing hemp into hemp fiber | |
| CN113123038B (en) | Processing method of polyester yarn | |
| CN111823340A (en) | Production method of natural plant fiber | |
| CN210194183U (en) | A add bullet machine for producing zip fastener strap weaving yarn | |
| CN213327989U (en) | Composite twisting device for textile yarns | |
| CN221440973U (en) | Twisting device for filament processing | |
| CN112760862A (en) | Dyeing device for deep dip dyeing of fabric | |
| CN112777399A (en) | Finished product transfer system for textile fiber production | |
| CN216514358U (en) | Multi-spindle chemical fiber high-speed stretch yarn machine structure of DTY (draw textured yarn) nylon yarn | |
| CN111206356A (en) | Water-repellent and oil-repellent fabric and preparation method thereof | |
| CN118773847A (en) | A fully automatic production system and method for anti-ultraviolet polyester fabric | |
| CN112678612A (en) | Yarn coiling mechanism of weaving usefulness | |
| CN110485087B (en) | Compression spring type oil immersion equipment for textile wires | |
| CN216037833U (en) | One-way rolling loose-proof structure of superfine tencel wool blended yarn | |
| CN210236576U (en) | Acrylic fabric rolling device with leveling function | |
| CN108342794A (en) | A kind of mixing twisting unit for different yarns | |
| CN210892406U (en) | Quick drying device is used in open-end spinning production | |
| CN208790807U (en) | A kind of nonmetallic ore Tetramune glass fibre yarn curling storage device | |
| CN112871252A (en) | Cotton fibre smashing and weighing device for spinning production | |
| CN113832631A (en) | Antibacterial textile fabric for clothing | |
| CN206928124U (en) | A kind of desizing device for producing grey spun rayon cloth | |
| CN219585546U (en) | Curtain fabric warp pulling device | |
| CN110485086A (en) | A kind of elasticizer elasticizer for being heat-shrinked device and using the thermal contraction device | |
| CN118727308B (en) | Interweaving dip dyeing preventing device and dip dyeing process for mixed color core-spun yarn |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |