CN114775138B - Preparation process of PTFE (polytetrafluoroethylene) bulked woven cloth - Google Patents
Preparation process of PTFE (polytetrafluoroethylene) bulked woven cloth Download PDFInfo
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- CN114775138B CN114775138B CN202210092655.0A CN202210092655A CN114775138B CN 114775138 B CN114775138 B CN 114775138B CN 202210092655 A CN202210092655 A CN 202210092655A CN 114775138 B CN114775138 B CN 114775138B
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/40—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/24—Bulked yarns or threads, e.g. formed from staple fibre components with different relaxation characteristics
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02H—WARPING, BEAMING OR LEASING
- D02H13/00—Details of machines of the preceding groups
- D02H13/22—Tensioning devices
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02H—WARPING, BEAMING OR LEASING
- D02H13/00—Details of machines of the preceding groups
- D02H13/22—Tensioning devices
- D02H13/26—Tensioning devices for threads in warp form
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
- D03D15/283—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads synthetic polymer-based, e.g. polyamide or polyester fibres
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Woven Fabrics (AREA)
Abstract
The invention belongs to the technical field of needled felt, in particular to a preparation process of PTFE bulked woven cloth, which comprises the following steps: step one, twisting warp monofilaments, wherein weft monofilaments are not twisted, the warp direction adopts 400D-600D conventional PTFE yarns, and the weft direction adopts 1500D-2500D expanded PTFE yarns; step two, warping, wherein warp yarns are wound on a beam by warping equipment; step three, weaving on a machine, controlling the tension of warp yarns and weft yarns during weaving on the machine, wherein the weave structure of the fabric is plain weave, satin weave or twill weave, the thickness of the fabric is 0.6-0.7mm, the gram weight of the fabric is 500-700 g/square meter, the warp yarn strength is 3000N/5 multiplied by 20 cm, the weft yarn strength is 1500N/5 multiplied by 20 cm, and the ventilation capacity of the fabric is 5-10m 3 And (5) square meter min. According to the preparation process of the PTFE bulked woven fabric, the filter holes of the fabric woven on the warp yarns and the weft yarns are not bent, so that the preparation process is simple, the fabric is not easy to block, and the fabric can be recycled.
Description
Technical Field
The invention relates to the technical field of needled felts, in particular to a preparation process of PTFE bulked woven cloth.
Background
The needled filter felt is widely used for industrial dust catching, smoke dust treatment and the like, and the terylene needled felt filter material has good air permeability, and after heat treatment, the surface is flat and smooth, is not easy to deform and is easy to clean dust. The polyester needled felt filter material subjected to hydrophobic and oleophobic treatment can prevent from pasting a bag and prolong the service life when being applied to smoke dust with high moisture content or little greasy dirt due to the hydrophobic property;
the needled filter holes of the existing needled filter felt are in a curved shape, dust can be accumulated in the curved filter holes after a period of use, dust is inconvenient to clean the needled filter felt, the filter holes are blocked, the recycling rate of the needled filter felt is reduced, and when the existing warping equipment is used, the compression roller cannot generate displacement along with the increase of coiled yarns, the tension of the yarns can change along with the displacement, and the tension of the yarns is different when the yarns are warping, so that the follow-up use is affected.
Disclosure of Invention
The invention provides a preparation process of PTFE bulked woven cloth, which is based on the technical problems that needling filter holes of the existing needling filter felt are curved, dust is accumulated in the curved filter holes, dust is inconvenient to clean the needling filter felt, and the tension of yarns is changed along with the increase of the wound yarns when the existing warping equipment is used, so that the tension of the yarns is different when warping is carried out, and the subsequent use is affected.
The invention provides a preparation process of PTFE bulked woven cloth, which comprises the following steps:
step one, twisting warp monofilaments, wherein weft monofilaments are not twisted;
step two, warping, wherein warp yarns are wound on a beam by warping equipment;
and thirdly, weaving on a machine, and controlling the tension of warp yarns and weft yarns during weaving on the machine.
Preferably, in the first step, the warp direction uses 400D to 600D of conventional PTFE yarns and the weft direction uses 1500D to 2500D of expanded PTFE yarns.
The warp direction preferably employs 500D conventional PTFE yarn and the weft direction preferably employs 1600D expanded PTFE yarn.
Preferably, in the third step, the fabric weave structure is plain weave, satin weave or twill weave, the fabric thickness is 0.6-0.7mm, the fabric gram weight is 500-700 g/square meter, the warp yarn strength is 3000N/5 multiplied by 20 cm, the weft yarn strength is 1500N/5 multiplied by 20 cm, and the air permeability of the fabric is 5-10m 3 Every square meter/min, and is preferably 5m 3 /㎡·min。
Preferably, the warping device comprises a mounting seat, guide rollers and a beam of loom, wherein a first chute and a second chute are respectively formed in opposite surfaces of two sides of the mounting seat, a first sliding block and a second sliding block are respectively and slidably inserted into inner walls of the first chute and the second chute, mounting holes are respectively formed in the middle of the first sliding block and the middle of the second sliding block, a first connecting rod and a second connecting rod are respectively and fixedly connected to inner walls of the two mounting holes, rollers are movably sleeved on outer surfaces of the first connecting rod and the second connecting rod, the rollers on the outer surfaces of the first connecting rod are in contact with the outer surface of the beam of loom, and linkage devices are respectively arranged on inner walls of two ends of the mounting seat and comprise a first linkage rod and a second linkage rod;
the angle adjusting device comprises a limit connecting plate, the limit connecting plate is rotatably sleeved on the outer surface of one end of the first connecting rod, a guide chute is formed in one side surface of the limit connecting plate, and the outer surface of one end of the second connecting rod is slidably sleeved on the inner wall of the guide chute.
Preferably, a first communication port is formed in the inner top wall of the first sliding groove, a first hydraulic cavity is formed in the inner top wall of the first communication port, a first linkage rod is fixedly connected to the upper surface of the first sliding block, the outer surface of the middle part of the first linkage rod is movably inserted with the inner wall of the first communication port, the outer surface of the upper end of the first linkage rod is movably inserted with the inner wall of the first hydraulic cavity, a first piston is fixedly connected to the upper end surface of the first linkage rod, and a flow groove is formed in the inner wall of one side of the top end of the first hydraulic cavity;
through the technical scheme, the effect that the first linkage rod is driven to synchronously move through the movement of the first sliding block, so that the first piston at the upper end of the first linkage rod pushes hydraulic oil in the first hydraulic cavity is achieved.
Preferably, a second communication port is formed in the inner bottom wall of the second sliding groove, a second hydraulic cavity is formed in the inner bottom wall of the second communication port, the second linkage rod is movably inserted into the inner wall of the second hydraulic cavity, a second piston is fixedly connected to the lower surface of the second linkage rod, the outer surface of the middle of the second linkage rod is movably sleeved with the inner wall of the second communication port, the upper surface of the second linkage rod is fixedly connected with the lower surface of the second sliding block, and hydraulic oil is arranged on the inner wall of the first hydraulic cavity;
through the technical scheme, the hydraulic oil in the first hydraulic cavity is pushed into the second hydraulic cavity through the flow groove, and then the second linkage rod is pushed, so that the second linkage rod pushes the second sliding block.
Preferably, six first clamping grooves distributed in an annular array are formed in one side surface of the limit connecting plate, a first sleeve connector is formed in one end surface of the first connecting rod, two symmetrically distributed mounting grooves are formed in the inner side wall of the first sleeve connector, first springs are fixedly connected to one end inner wall of each mounting groove, and first limiting blocks are fixedly connected to the free ends of the two first springs;
through above-mentioned technical scheme, reached and controlled first stopper through first spring, guided effect through the mounting groove to first stopper.
Preferably, the inner wall activity grafting of first cover interface has the spliced pole, the second joint groove has all been seted up to the both sides surface of spliced pole, one of them the through-hole has been seted up to one side inner wall of second joint groove, just the one end of through-hole runs through and extends to another the inner wall of second joint groove, two third spouts that are symmetric distribution are seted up to one side inner wall of through-hole.
Preferably, two extrusion blocks which are distributed in a mirror image manner are movably inserted into the inner wall of the through hole, one side surface of each extrusion block is inclined, the lower surfaces of the two extrusion blocks are fixedly connected with third sliding blocks, the outer surfaces of the two third sliding blocks are respectively inserted into the inner walls of the two third sliding grooves in a sliding manner, one side inner wall of each third sliding groove is fixedly connected with a second spring, the free ends of the two second springs are respectively fixedly connected with one side surface of each third sliding block, an insertion port is formed in one end surface of each connecting column, and an expansion port is formed in the inner side wall of each insertion port;
through the technical scheme, the inclined end face of the extrusion block is convenient to extrude the extrusion block, the two extrusion blocks move towards two sides, the third sliding block is guided through the third sliding groove, and the second spring drives the extrusion block to reset after the extrusion block loses extrusion.
Preferably, a trigger rod is movably inserted into the inner wall of the telescopic opening, the outer surface of one end of the trigger rod is in a conical truncated cone shape, a limiting ring is fixedly sleeved on the outer surface of the middle part of the trigger rod, the outer surface of the limiting ring is movably sleeved with the inner wall of the telescopic opening, a third spring is fixedly connected with one end surface of the telescopic opening, the free end of the third spring is fixedly connected with one end surface of the limiting ring, six clamping claws in an annular array are fixedly connected with the outer surface of one end of the connecting column, and the outer surfaces of the six clamping claws are respectively movably inserted into the inner walls of the six first clamping grooves;
through above-mentioned technical scheme, reached through the extrusion of trigger lever to extrusion piece, two extrusion pieces extrude two first stopper for in the first stopper shrink mounting groove, and then cancel the spacing effect to the spliced pole.
The beneficial effects of the invention are as follows:
1. the filter holes of the fabric woven on the warp yarns and the weft yarns are not bent, so that the manufacturing process is simple, the fabric is not easy to block, and the fabric can be recycled.
2. Through setting up aggregate unit, reached and driven first slider through the head rod and rise in first spout, and then drive first gangbar and rise and extrude the hydraulic oil of first hydraulic pressure intracavity for the hydraulic oil of first hydraulic pressure intracavity flows to the second hydraulic pressure intracavity through the flow groove, promotes the second gangbar, makes the second slider rise along with the rising of first slider, and the distance between head rod and the second connecting rod is kept invariable throughout to control, makes the yarn the rate of tension of coiling in-process unanimous throughout, and then improves the warping effect.
3. Through setting up angle adjusting device, the end through the trigger lever has been reached and has been extruded two extrusion pieces, two extrusion pieces extrude two first stoppers, make in the first stopper shrink mounting groove, and then cancel the spacing to the spliced pole, take out the spliced pole in first set of interface, make the joint claw take out from first joint inslot, rotatory spacing connecting plate, when spacing connecting plate is rotatory, the second connecting rod slides in the direction spout, insert the spliced pole in first set of interface again, make first stopper insert the second joint inslot under the effect of first spring, spacing the spliced pole, adjust the angle between first connecting rod and the second connecting rod, and then adjust warping equipment's effect of tensile force.
Drawings
FIG. 1 is a schematic diagram of a process for producing PTFE bulked woven cloth according to the present invention;
FIG. 2 is a partial cross-sectional view of a process for preparing a PTFE bulked woven fabric according to the present invention;
FIG. 3 is a cross-sectional view of a first slider structure of a process for producing PTFE bulked woven fabric according to the present invention;
FIG. 4 is a perspective view of an angle adjusting device of a process for producing PTFE bulked woven cloth according to the present invention;
FIG. 5 is a perspective view of a clamping claw structure of a process for producing PTFE bulked woven fabric according to the present invention;
fig. 6 is an enlarged view of the structure a in fig. 3 of a process for producing a PTFE expanded woven fabric according to the present invention.
In the figure: 1. a mounting base; 2. a guide roller; 3. a beam; 4. a first chute; 5. a second chute; 6. a first slider; 7. a second slider; 8. a first connecting rod; 9. a second connecting rod; 10. a roller; 11. a first linkage rod; 111. a second linkage rod; 112. a first communication port; 113. a first hydraulic chamber; 114. a flow channel; 115. a second communication port; 116. a second hydraulic chamber; 12. a limit connecting plate; 121. a guide chute; 122. A first clamping groove; 123. a first set of interfaces; 124. a mounting groove; 125. a first spring; 126. a first limiting block; 127. a connecting column; 128. a second clamping groove; 129. a through hole; 1210. a third chute; 1211. Extruding a block; 1212. a third slider; 1213. a second spring; 1214. an interface; 1215. a telescopic opening; 1216. a trigger lever; 1217. a limiting ring; 1218. a third spring; 1219. and (5) clamping claws.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Referring to fig. 1-6, a process for preparing a PTFE expanded woven fabric comprises the steps of:
step one, twisting warp monofilaments, wherein weft monofilaments are not twisted, the warp direction adopts 400D-600D conventional PTFE yarns, and the weft direction adopts 1500D-2500D expanded PTFE yarns.
The warp direction preferably employs 500D conventional PTFE yarn and the weft direction preferably employs 1600D expanded PTFE yarn.
Step two, warping, wherein warp yarns are wound on a beam by warping equipment.
Step three, weaving on a machine, controlling the tension of warp yarns and weft yarns during weaving on the machine, wherein the weave structure of the fabric is plain weave, satin or twill, the thickness of the fabric is 0.6-0.7mm, the gram weight of the fabric is 500-700 g/square meter, the warp yarn strength is 3000N/5 multiplied by 20 cm, the weft yarn strength is 1500N/5 multiplied by 20 cm, the film coating effect is achieved, and the ventilation capacity of the fabric is 5-10m 3 Every square meter/min, and is preferably 5m 3 /㎡·min。
The warping equipment comprises an installation seat 1, a guide roller 2 and a beam of a loom 3, in order to guide a first sliding block 6 and a second sliding block 7, a first sliding groove 4 and a second sliding groove 5 are formed in opposite surfaces of two sides of the installation seat 1, further, the first sliding block 6 and the second sliding block 7 are respectively and slidably inserted into inner walls of the first sliding groove 4 and the second sliding groove 5, in order to install a first connecting rod 8 and a second connecting rod 9, installation holes are formed in the middle of the first sliding block 6 and the second sliding block 7, the inner walls of the two installation holes are respectively and fixedly connected with the first connecting rod 8 and the second connecting rod 9, rollers 10 are movably sleeved on outer surfaces of the first connecting rod 8 and the second connecting rod 9, in order to enable the first connecting rod 8 to ascend along with the increase of the quantity of yarns wound on the beam of a loom 3, the inner walls of two ends of the installation seat 1 are respectively provided with a linkage device, and the linkage device comprises a first linkage rod 11 and a second linkage rod 111.
The first communication port 112 has been seted up to the interior roof of first spout 4, first hydraulic pressure chamber 113 has been seted up to the interior roof of first communication port 112, first gangbar 11 fixed connection is in the upper surface of first slider 6, the middle part surface of first gangbar 11 is pegged graft with the inner wall activity of first communication port 112, and the upper end surface of first gangbar 11 is pegged graft with the inner wall activity of first hydraulic pressure chamber 113, the upper end surface fixedly connected with first piston of first gangbar 11, flow groove 114 has been seted up to one side inner wall on first hydraulic pressure chamber 113 top, the effect that the removal through first slider 6 drives first gangbar 11 and carry out synchronous movement for the first piston of first gangbar 11 upper end promotes the hydraulic oil in the first hydraulic pressure chamber 113.
The second communication port 115 has been seted up to the interior bottom wall of second spout 5, the second hydraulic pressure chamber 116 has been seted up to the interior bottom wall of second communication port 115, the activity of second gangbar 111 is pegged graft in the inner wall of second hydraulic pressure chamber 116, the lower surface fixedly connected with second piston of second gangbar 111, the middle part surface of second gangbar 111 and the inner wall activity of second communication port 115 cup joint, the upper surface of second gangbar 111 and the lower surface fixedly connected of second slider 7, the inner wall of first hydraulic pressure chamber 113 is provided with hydraulic oil, the effect that the hydraulic oil in the first hydraulic pressure chamber 113 was promoted to the second hydraulic pressure chamber 116 through flow groove 114 has been reached, and then promote second gangbar 111, make second gangbar 111 promote second slider 7.
The both sides surface of mount pad 1 all is provided with angle adjusting device, angle adjusting device includes spacing connecting plate 12, spacing connecting plate 12 rotatory cup joints in the one end surface of head rod 8, in order to make second connecting rod 9 remove along with the removal of head rod 8, guide chute 121 has been seted up on one side surface of spacing connecting plate 12, further, the one end surface of second connecting rod 9 and the inner wall slip of guide chute 121 cup joint, six first joint grooves 122 that are annular array and distribute have been seted up on one side surface of spacing connecting plate 12, first cover interface 123 has been seted up on one end surface of head rod 8, two mounting grooves 124 that are symmetrical distribution have been seted up to the inside wall of first cover interface 123, the equal fixedly connected with first spring 125 of one end inner wall of two mounting grooves 124, the equal fixedly connected with first stopper 126 of free end of two first springs 125 has reached and has controlled first stopper 126 through first spring 125, the effect of leading first stopper 126 through mounting groove 124.
The inner wall activity grafting of first cover interface 123 has spliced pole 127, and second joint groove 128 has all been seted up to the both sides surface of spliced pole 127, and the one end surface of first stopper 126 is pegged graft with the inner wall activity of second joint groove 128, and through-hole 129 has been seted up to one side inner wall of one of them second joint groove 128, and the one end of through-hole 129 runs through and extends to the inner wall of another second joint groove 128, and two third spouts 1210 that are symmetric distribution have been seted up to one side inner wall of through-hole 129.
The inner wall of the through hole 129 is movably inserted with two extrusion blocks 1211 which are distributed in a mirror image mode, one side surface of each extrusion block 1211 is inclined, the lower surfaces of the two extrusion blocks 1211 are fixedly connected with third sliding blocks 1212, the outer surfaces of the two third sliding blocks 1212 are respectively inserted with the inner walls of the two third sliding grooves 1210 in a sliding mode, one side inner wall of each third sliding groove 1210 is fixedly connected with a second spring 1213, the free ends of the two second springs 1213 are respectively fixedly connected with one side surface of each third sliding block 1212, an inserting hole 1214 is formed in one end surface of each connecting column 127, an inner side wall of each inserting hole 1214 is provided with a telescopic hole 1215, the inclined end face of each extrusion block 1211 is conveniently achieved, the extrusion blocks 1211 can be conveniently extruded, the two extrusion blocks 1211 can move to two sides, the third sliding blocks 1212 are guided by the third sliding grooves 1210, and the second springs 1213 drive the extrusion blocks 1211 to reset after the extrusion blocks 1211 lose extrusion.
The inner wall of the telescopic opening 1215 is movably inserted with a trigger rod 1216, the outer surface of one end of the trigger rod 1216 is in a conical truncated cone shape, the outer surface of the middle part of the trigger rod 1216 is fixedly sleeved with a limiting ring 1217, the outer surface of the limiting ring 1217 is movably sleeved with the inner wall of the telescopic opening 1215, one end surface of the telescopic opening 1215 is fixedly connected with a third spring 1218, the free end of the third spring 1218 is fixedly connected with one end surface of the limiting ring 1217, one end outer surface of a connecting column 127 is fixedly connected with six annular array clamping claws 1219, the outer surfaces of the six clamping claws 1219 are movably inserted with the inner walls of the six first clamping grooves 122 respectively, the extrusion of the extrusion blocks 1211 by the trigger rod 1216 is achieved, the two first limiting blocks 126 are extruded, the first limiting blocks 126 are retracted into the mounting groove 124, and the limiting effect of the connecting column 127 is further cancelled.
Working principle: the angle of the limit connecting plate 12 is adjusted by a worker, the trigger rod 1216 is pressed down by the worker, the tail end of the trigger rod 1216 extrudes the two extrusion blocks 1211, the two extrusion blocks 1211 extrude the two first limiting blocks 126, the first limiting blocks 126 retract into the mounting groove 124, further the limiting of the connecting column 127 is canceled, the connecting column 127 is pulled out of the first sleeve interface 123 by the worker, the clamping claw 1219 is pulled out of the first clamping groove 122, the limit connecting plate 12 is rotated, when the limit connecting plate 12 is rotated, the second connecting rod 9 slides in the guide sliding groove 121, the connecting column 127 is inserted into the first sleeve interface 123, and the first limiting blocks 126 are inserted into the second clamping groove 128 under the action of the first springs 125 to limit the connecting column 127;
along with the yarn wound by the beam 3, the diameter of the beam 3 is increased, the first connecting rod 8 is driven to rise, the first connecting rod 8 drives the first sliding block 6 to rise in the first sliding groove 4, the first linkage rod 11 is driven to rise to squeeze hydraulic oil in the first hydraulic cavity 113, the hydraulic oil in the first hydraulic cavity 113 flows into the second hydraulic cavity 116 through the flow groove 114 to push the second linkage rod 111, the second sliding block 7 rises along with the rising of the first sliding block 6, the distance between the first connecting rod 8 and the second connecting rod 9 is controlled to be constant all the time, and the tension of the yarn is guaranteed to be constant.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (3)
1. A preparation process of PTFE bulked woven cloth is characterized in that: the method comprises the following steps:
step one, twisting warp monofilaments, wherein weft monofilaments are not twisted, the warp direction adopts 400D-600D conventional PTFE yarns, and the weft direction adopts 1500D-2500D expanded PTFE yarns;
step two, warping, warp yarn is wound on a beam of a loom by using warping equipment, the warping equipment comprises a mounting seat (1), guide rollers (2) and a beam of a loom (3), a first sliding groove (4) and a second sliding groove (5) are formed in opposite surfaces of two sides of the mounting seat (1), a first sliding block (6) and a second sliding block (7) are respectively and slidably inserted into inner walls of the first sliding groove (4) and the second sliding groove (5), mounting holes are formed in the middle of the first sliding block (6) and the second sliding block (7), a first connecting rod (8) and a second connecting rod (9) are fixedly connected to inner walls of the two mounting holes respectively, a roller (10) is movably sleeved on outer surfaces of the first connecting rod (8) and the second connecting rod (9), and the roller (10) on the outer surfaces of the first connecting rod (8) is in contact with the outer surfaces of the beam of a loom (3);
the two-end inner walls of the mounting seat (1) are respectively provided with a linkage device, each linkage device comprises a first linkage rod (11) and a second linkage rod (111), a first communication port (112) is formed in the inner top wall of each first sliding groove (4), a first hydraulic cavity (113) is formed in the inner top wall of each first communication port (112), each first linkage rod (11) is fixedly connected to the upper surface of each first sliding block (6), the middle outer surface of each first linkage rod (11) is movably connected with the inner wall of each first communication port (112) in an inserting mode, the outer surface of the upper end of each first linkage rod (11) is movably connected with the inner wall of each first hydraulic cavity (113), a first piston is fixedly connected to the upper end surface of each first linkage rod (11), and a flow groove (114) is formed in one side inner wall of the top end of each first hydraulic cavity (113);
the two side surfaces of the mounting seat (1) are respectively provided with an angle adjusting device, each angle adjusting device comprises a limit connecting plate (12), each limit connecting plate (12) is rotationally sleeved on one outer surface of one end of each first connecting rod (8), one side surface of each limit connecting plate (12) is provided with a guide chute (121), one outer surface of one end of each second connecting rod (9) is slidingly sleeved with the inner wall of each guide chute (121), one side surface of each limit connecting plate (12) is provided with six first clamping grooves (122) distributed in an annular array, one end surface of each first connecting rod (8) is provided with a first sleeve interface (123), the inner side wall of each first sleeve interface (123) is provided with two symmetrically distributed mounting grooves (124), one inner wall of each mounting groove (124) is fixedly connected with a first spring (125), and the free ends of the two first springs (125) are fixedly connected with first limiting blocks (126);
the inner wall of the first sleeve interface (123) is movably inserted with a connecting column (127), two side surfaces of the connecting column (127) are provided with second clamping grooves (128), one side inner wall of the second clamping groove (128) is provided with a through hole (129), one end of the through hole (129) penetrates through and extends to the other side inner wall of the second clamping groove (128), and one side inner wall of the through hole (129) is provided with two third sliding grooves (1210) which are symmetrically distributed;
two extrusion blocks (1211) which are distributed in a mirror image manner are movably inserted into the inner wall of the through hole (129), one side surface of each extrusion block (1211) is inclined, the lower surfaces of the two extrusion blocks (1211) are fixedly connected with third sliding blocks (1212), the outer surfaces of the two third sliding blocks (1212) are respectively inserted into the inner walls of the two third sliding grooves (1210) in a sliding manner, second springs (1213) are fixedly connected to the inner walls of one side of the two third sliding grooves (1210), the free ends of the two second springs (1213) are respectively fixedly connected with the surfaces of one side of the two third sliding blocks (1212), an inserting port (1214) is formed in one end surface of each connecting column (127), and a telescopic port (1215) is formed in the inner side wall of each inserting port (1214);
a trigger rod (1216) is movably inserted into the inner wall of the telescopic opening (1215), the outer surface of one end of the trigger rod (1216) is in a conical truncated cone shape, a limiting ring (1217) is fixedly sleeved on the outer surface of the middle part of the trigger rod (1216), the outer surface of the limiting ring (1217) is movably sleeved with the inner wall of the telescopic opening (1215), a third spring (1218) is fixedly connected with the outer surface of one end of the telescopic opening (1215), the free end of the third spring (1218) is fixedly connected with the outer surface of one end of the limiting ring (1217), six annular array clamping claws (1219) are fixedly connected with the outer surfaces of one end of the connecting column (127), and the outer surfaces of the six clamping claws (1219) are respectively movably inserted into the inner walls of the six first clamping grooves (122);
and thirdly, weaving on a machine, and controlling the tension of warp yarns and weft yarns during weaving on the machine.
2. The process for producing a PTFE expanded woven fabric according to claim 1, wherein: in the third step, the fabric weave structure is plain weave or satin weave or twill weave, the fabric thickness is 0.6-0.7mm, the fabric gram weight is 500-700 g/square meter, the warp yarn strength is 3000N/5 multiplied by 20 cm, the weft yarn strength is 1500N/5 multiplied by 20 cm, and the air permeability of the fabric is 5-10 m/square meter/min.
3. The process for producing a PTFE expanded woven fabric according to claim 1, wherein: the second connecting port (115) has been seted up to the interior bottom wall of second spout (5), second hydraulic pressure chamber (116) has been seted up to the interior bottom wall of second connecting port (115), second gangbar (111) activity peg graft in the inner wall of second hydraulic pressure chamber (116), the lower fixed surface of second gangbar (111) is connected with the second piston, the middle part surface of second gangbar (111) with the inner wall activity of second connecting port (115) cup joints, the upper surface of second gangbar (111) with the lower fixed surface of second slider (7) is connected, the inner wall of first hydraulic pressure chamber (113) is provided with hydraulic oil.
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