Parallel traction device for high-thickness special fiber fabrics

Abstract

The present invention provides a parallel traction device for high-thickness special fiber fabrics, a fabric clamping mechanism, a primary traction mechanism slidably connected to the fabric clamping mechanism, and a secondary traction mechanism slidably connected to the primary traction mechanism, which are used to pull the high-thickness special fiber fabrics through two-stage sliding guide rails to reach a preset traction distance. The present invention increases the single traction length without increasing the traction mechanism through two sets of traction mechanisms; at the same time, a fabric fixing mechanism is set at the end of the primary traction mechanism, which can achieve continuous production of fabrics through the opposite displacement of the primary traction mechanism and the secondary traction mechanism, and can be cut from the rear of the fabric clamping mechanism, overcoming the problem of changes in fabric tension caused by cutting.

Description

Technical Field

[0001] The invention relates to the technical field of fabric traction devices, in particular to a parallel traction device for high-thickness special fiber fabrics. Background Art

[0002] High-thickness special fiber fabrics are one of the textile composite materials that have attracted much attention in recent years. Due to their advantages such as high specific strength, high specific modulus, good impact resistance, and strong designability, they are widely used in aerospace, military, automotive, construction, medical and other fields. Traditional weaving equipment is to place the fabric close to the cylindrical licker-in roller, and use the friction between the licker-in roller and the fabric to lead the fabric away from the cloth mouth. This method will cause the fabric to bend. However, this method is not suitable for high-thickness special fiber fabrics. This is because when the fabric bends, the bending diameter of the fibers on the outside of the fabric is much larger than that of the fibers on the inside, resulting in inconsistent tension on the fibers on both sides of the fabric. Special fibers have poor elasticity and small elongation, which will inevitably damage the strength of the fibers.

[0003] There are two ways to solve the above problem, one is to increase the diameter of the licker-in roller, and the other is to use parallel traction. However, increasing the diameter of the licker-in roller can only relieve the tension on both sides of the fabric, and cannot completely solve the problem; if the parallel traction method is used, the production length of the fabric will be limited, and in order to improve the stability of parallel traction, guide rail limited traction is usually used. If the production length is to be extended, the guide rail needs to be extended, which increases the space occupied by the traction mechanism and is not practical.

[0004] In view of this, it is necessary to design an improved parallel traction device for high-thickness special fiber fabrics to solve the above problems. Summary of the invention

[0005] In order to overcome the deficiencies of the above-mentioned prior art, the purpose of the present invention is to provide a parallel traction device for high-thickness special fiber fabrics, which increases the single traction length without increasing the traction mechanism through two sets of traction mechanisms; at the same time, a fabric fixing mechanism is arranged at the end of the primary traction mechanism, which can enable continuous production of the fabric through the opposite displacement of the primary traction mechanism and the secondary traction mechanism, and can be cut from the rear of the fabric clamping mechanism, thereby reducing the problem of changes in fabric tension caused by cutting.

[0006] To achieve the above-mentioned purpose of the invention, the present invention provides a parallel traction device for high-thickness special fiber fabrics, including: a fabric clamping mechanism, a primary traction mechanism slidably connected to the fabric clamping mechanism, and a secondary traction mechanism slidably connected to the primary traction mechanism, which is used to pull the high-thickness special fiber fabric through two-stage sliding guide rails to reach a preset traction distance.

[0007] As a further improvement of the present invention, the fabric clamping mechanism comprises an upper clamping plate and a lower clamping plate for clamping the fabric, and a control mechanism for controlling the upper clamping plate to move up and down.

[0008] As a further improvement of the present invention, the control mechanism includes a pad block fixedly connected to the upper clamping plate, a rotating rod movably connected to the pad block, and a handwheel fixedly connected to the rotating rod; the rotating rod is provided with a thread, and the fabric clamping mechanism also includes a top plate arranged above the upper clamping plate, the top plate is provided with a screw hole matching the thread of the rotating rod; the rotating rod moves up and down relative to the top plate, thereby driving the pad block and the upper clamping plate to move up and down, thereby clamping the fabric.

[0009] As a further improvement of the present invention, a slot is provided on the top of the cushion block, and the bottom end of the rotating rod is clamped in the slot and can rotate relative to the slot; the lower surface of the upper clamp plate and the upper surface of the lower clamp plate are respectively provided with a plurality of mutually engaging grooves for improving the clamping stability.

[0010] As a further improvement of the present invention, the lower surface of the upper clamping plate includes a middle boss and two side bosses, and the upper surface of the lower clamping plate includes a matching middle groove and two side grooves; the height of the middle boss is higher than the height of the two side bosses.

[0011] As a further improvement of the present invention, the primary traction mechanism includes: a support frame fixedly connected to the fabric clamping mechanism and a screw traction mechanism movably connected to the support frame.

[0012] As a further improvement of the present invention, the support frame includes two groups of first screw nut support seats and sliding support seats, which are respectively fixedly connected to the two ends of the fabric clamping mechanism; the screw traction mechanism includes two first screws movably connected to the first screw nut support seats, a worm gear vertically arranged with the first screw gear, and a first-stage traction motor; the worm gear is respectively connected to the first screw gear and the first-stage traction motor through gear transmission.

[0013] As a further improvement of the present invention, the first-level traction mechanism also includes a first guide rail slidably connected to the sliding support seat; the two groups of the first screw nut support seats and the sliding support seats are connected as a whole through a connecting plate; the side wall of the first screw nut support seat is fixed with a positioning bearing through a bearing pin.

[0014] As a further improvement of the present invention, the secondary traction mechanism includes a second screw nut support seat for supporting the primary traction mechanism, a second screw movably connected to the second screw nut support seat, and a secondary traction motor.

[0015] As a further improvement of the present invention, the secondary traction mechanism also includes two second guide rails and a slider slidably connected to the second guide rails; the slider is also fixedly connected to the primary traction mechanism and is used to slide the primary traction mechanism along the second guide rails.

[0016] As a further improvement of the present invention, it also includes: a fabric supporting mechanism disposed below the fabric clamping mechanism, for supporting the pulled out high-thickness special fiber fabric;

[0017] and a frame; used for supporting and connecting the primary traction mechanism and the secondary traction mechanism; the primary traction mechanism is arranged above the frame, and the secondary traction mechanism is arranged at the bottom of the frame, and is used for making the frame and the primary traction mechanism move together under the secondary traction force;

[0018] And a fabric fixing mechanism is arranged at one end of the primary traction mechanism away from the cloth fell, and is used to fix the pulled-out fabric, so that the fabric clamping mechanism can slide toward the side close to the cloth fell after releasing the fabric.

[0019] The beneficial effects of the present invention are:

[0020] 1. The parallel traction device for thick and special fiber fabrics provided by the present invention increases the single traction length without increasing the traction mechanism through two sets of parallel traction mechanisms, reduces the number of equipment stops caused by fabric unloading and the floor space occupied, ensures production efficiency, increases the stability of the traction process, and avoids fiber damage caused by curling of thick and special fiber fabrics. Moreover, the two-stage traction mechanism can increase the types of movement control modes, providing more options for different textile processes and speeds.

[0021] 2. The present invention sets a fabric fixing mechanism at the end of the primary traction mechanism, which can make the fabric continuously produced through the opposite displacement of the primary traction mechanism and the secondary traction mechanism, and can cut from the rear of the fabric clamping mechanism, reducing the problem of fabric tension change caused by cutting. After the product is produced, the equipment can continue to work during the cutting process to ensure the continuity of production.

[0022] 3. The present invention increases the clamping strength and stability between the clamp and the fabric by arranging a plurality of mutually engaging grooves on the lower surface of the upper clamp and the upper surface of the lower clamp, thereby avoiding slippage between the fabric and the traction mechanism, which would lead to errors in the weft density of the fabric. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the parallel traction device for high-thickness special fiber fabrics.

[0024] Figure 2 It is a schematic diagram of the partial structure of the parallel traction device for high-thickness special fiber fabrics.

[0025] Figure 3 It is a structural schematic diagram of the fabric clamping mechanism of the parallel traction device for high-thickness special fiber fabrics.

[0026] Figure 4 It is a structural schematic diagram of the primary traction mechanism of the parallel traction device for high-thickness special fiber fabrics.

[0027] Figure 5 for Figure 4 Schematic diagram of the partially enlarged structure of the middle part A.

[0028] Figure 6 It is a structural schematic diagram of the secondary traction mechanism of the parallel traction device for high-thickness special fiber fabrics.

[0029] Figure 7 This is a schematic diagram of the cloth support device.

[0030] Figure 8 for Figure 3 Schematic diagram of the structure when the upper and lower clamps are in the loosened state.

[0031] Fig. 9 for Figure 3 Schematic diagram of the structure of the upper and lower splints in the closed state.

[0032] Reference numerals

[0033] 10- fabric clamping mechanism; 11- hand wheel; 12- lower clamping plate; 121- middle groove; 122- grooves on both sides; 13- upper clamping plate; 131- middle boss; 132- bosses on both sides; 14- pad; 15- top plate; 16- side plate;

[0034] 20-first-stage traction mechanism; 21-support frame; 211-first screw nut support seat; 212-sliding support seat; 213-connecting plate; 214-bearing pin; 215-positioning bearing; 22-first screw; 23-second gear; 24-first guide rail; 25-worm; 26-first-stage traction motor; 27-first gear;

[0035] 30-secondary traction mechanism; 31-screw transmission mechanism; 311-second screw nut support seat; 312-second screw; 313-secondary traction motor; 32-second guide rail; 33-slider;

[0036] 40- fabric supporting mechanism; 41- cloth supporting plate; 42- connecting piece; 50- frame. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is described in detail below in conjunction with specific embodiments.

[0038] It should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only structures and / or processing steps closely related to the scheme of the present invention are shown in the specific embodiments, while other details that are not closely related to the present invention are omitted.

[0039] In addition, it should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0040] In view of the characteristics of thick and heavy special fiber fabrics, such as large thickness, heavy weight, and poor elasticity, the conventional traction mechanism is improved. First, it is necessary to ensure that the traction mechanism has sufficient load-bearing and clamping force to pull long and thick special fiber fabrics; secondly, it is necessary to ensure the stability of the traction process, such as using a guide rail traction structure to ensure the consistency of the traction route to prevent the traction from deviating and causing the fabric to be twisted. The details are as follows:

[0041] See also Figure 1-9 As shown, a parallel traction device for high-thickness special fiber fabric provided by the present invention comprises: a fabric clamping mechanism 10, a primary traction mechanism 20 slidably connected to the fabric clamping mechanism 10, and a secondary traction mechanism 30 slidably connected to the primary traction mechanism 20, which is used to pull the high-thickness special fiber fabric through two-stage sliding guide rails to reach a preset traction distance. Both the primary traction mechanism 20 and the secondary traction mechanism 30 are preferably parallel traction mechanisms driven by a screw rod, and the screw rod can be used to limit the position to prevent the traction track from deviating. With such an arrangement, when in use, the fabric woven from the cloth fell is clamped by the fabric clamping mechanism 10, and then the sliding process of the primary traction mechanism 20 and the secondary traction mechanism 30 is controlled according to the weaving speed to realize traction of different procedures, for example, the primary traction mechanism 20 is first moved in the direction away from the cloth fell, and then the secondary traction mechanism 30 is moved in the direction away from the cloth fell; or, the secondary traction mechanism 30 is first moved in the direction away from the cloth fell, and then the primary traction mechanism 20 is moved in the direction away from the cloth fell; or the two traction mechanisms are moved together; or when the primary traction mechanism reaches the maximum distance of 20, the primary traction mechanism is controlled to move forward 20 (close to the cloth fell direction) and the secondary traction mechanism 30 is moved backward, so as to ensure that the spatial position of the fabric clamping mechanism 10 remains unchanged, and when the primary traction mechanism 20 reaches the front end again, the secondary traction mechanism 30 can be stopped, and production can be realized again, thereby ensuring the continuity of production, and the types of movement control modes can be increased to provide more options for different weaving processes and speeds.

[0042] Specifically, see Figure 3As shown, the fabric clamping mechanism 10 includes an upper clamping plate 13 and a lower clamping plate 12 for clamping the fabric, and a control mechanism for controlling the upper clamping plate 13 to move up and down. The upper clamping plate 13 moves downward to clamp the fabric, and releases the clamping when it moves upward.

[0043] As an embodiment, the control mechanism includes a pad 14 fixedly connected to the upper clamping plate 13, a rotating rod movably connected to the pad 14 (i.e., the rotating rod can rotate relative to the pad), and a hand wheel 11 fixedly connected to the rotating rod; the rotating rod is provided with threads, and the fabric clamping mechanism 10 also includes a top plate 15 arranged above the upper clamping plate 13, and the top plate 15 is provided with screw holes that match the threads of the rotating rod; the rotating rod can move up and down relative to the top plate, thereby driving the pad and the upper clamping plate 13 to move up and down to achieve the clamping of the fabric. For example, by rotating the hand wheel 11, the rotation of the rotating rod is driven, and under the action of the internal thread of the top plate 15, the rotating rod moves downward, thereby pressing the upper clamping plate 13 downward to achieve clamping. When it is necessary to loosen, the hand wheel 11 is rotated in the opposite direction so that the rotating rod drives the upper clamping plate 13 to move upward.

[0044] In particular, a slot is provided at the top of the pad 14, and the bottom end of the rotating rod is clamped in the slot and can rotate relative to the slot; for example, the slot is two inverted L-shaped claws arranged on the pad 14, and a rotating head is provided in the slot, and the rotating head is limited in the slot by the horizontal part of the inverted L-shaped claw, and the bottom end of the rotating rod is fixedly connected to the rotating head, so that the rotating head and the rotating rod rotate synchronously, and because the rotating head is limited in the slot, the pad 14 can be pressed down or lifted up. The lower surface of the upper clamp 13 and the upper surface of the lower clamp 12 are respectively provided with a plurality of mutually interlocking grooves for improving the clamping stability and preventing the fabric from directly slipping with the clamp; the groove is preferably perpendicular to the weaving movement direction of the fabric. In a specific embodiment, the groove has a depth of 10 mm and a width of 10 mm, and the chamfer size of the groove is 3 mm and the angle is 45°.

[0045] In particular, see Figure 8 and 9As shown, in order to further improve the clamping stability of the upper clamping plate 13 and the lower clamping plate 12, the depth of the middle groove 121 on the upper surface of the lower clamping plate 12 is designed to be deeper than the grooves 122 on both sides, for example, the depth of the middle groove 121 is 12-20mm, and the depth of the grooves 122 on both sides is 8-10mm; and the middle groove 121 is preferably designed to be an arc shape to reduce the pressing damage to the fabric by the edges. At the same time, the lower surface of the upper clamping plate 13 includes a middle boss 131 and two side bosses 132 that cooperate therewith, and the height of the middle boss 131 is substantially the same as the depth of the middle groove 121. In this way, the fabric can be clamped tightly by the bite of the middle groove 121 and the boss 131, so that the depth of the bite grooves and bosses on both sides can be appropriately reduced without affecting the clamping stability, thereby reducing the damage to the fabric caused by the bite on both sides.

[0046] In a specific embodiment, the upper clamping plate 13 has a width of 150 mm, a length of 1300 mm, and a thickness of 20 mm; the lower clamping plate 12 has a width of 180 mm, a length of 1600 mm, and a thickness of 5 mm; the side panels are "U"-shaped structures with a height of 150 mm and a thickness of 15 mm. The upper clamping plate 13 is arranged between the "U"-shaped structures of the side panels (10) and can only move up and down.

[0047] See also Figure 4 As shown, the primary traction mechanism 20 includes: a support frame 21 fixedly connected to the fabric clamping mechanism 10 and a screw traction mechanism movably connected to the support frame 21. The screw traction mechanism enables the support frame 21 to move along the screw, thereby driving the movement of the fabric clamping mechanism 10 connected to the support frame.

[0048] Specifically, the support frame includes two groups of first screw nut support seats 211 and sliding support seats 212, which are respectively fixedly connected to the two ends of the fabric clamping mechanism 10 (that is, they are arranged on both sides in the width direction of the fabric). The first screw nut support seat 211 and the sliding support seat 212 are fixedly connected and can move synchronously. Preferably, the lower clamping plate 12 of the fabric clamping mechanism 10 is fixedly connected to the first screw nut support seat 211. The screw traction mechanism includes two first screws 22 movably connected to the first screw nut support seat 211, a worm 25 vertically arranged with the first screw 22, and a primary traction motor 26; the worm 25 is respectively connected to the first screw 22 and the primary traction motor 26 through gear transmission. Figure 4As shown, as a specific embodiment, the two first screw rods 22 are parallel to each other and parallel to the weaving direction of the fabric, the worm 25 is vertically arranged at the end of the first screw rod 22 away from the cloth fell, and the two ends of the worm are provided with spiral teeth, which are respectively connected with the two first screw rods 22 through the second gear 23; the middle part of the worm is provided with a first gear 27, and the first gear 27 is connected with the gear of the primary traction motor 26. In this way, when the primary traction motor 26 rotates, the worm 25 is driven to rotate through the first gear 27, and then the first screw rod 11 is driven to rotate through the second gear 23, and the first screw rod nut support seat 211 can move along the first screw rod 11.

[0049] In particular, the primary traction mechanism 20 also includes a first guide rail 24 slidably connected to the sliding support seat 212. The first guide rail 14 further improves the stability of the sliding track and reduces the load-bearing capacity of the first screw rod 22 to prevent the problem of over-traction. The two sets of first screw rod nut support seats 211 and the sliding support seat 212 are connected as a whole through a connecting plate 213 to ensure the consistency of the moving speed on both sides. The connecting plate 213 has a length of 1600 mm, a width of 200 mm, and a thickness of 15 mm.

[0050] like Figure 5 As shown, a positioning bearing 215 is fixed to the side wall of the first screw nut support seat 211 through a bearing pin 214 to further ensure the stability of the first screw nut support seat 211.

[0051] In a specific embodiment, the length of the first screw nut support seat 211 is 200 mm, the height is 150 mm, and the width is 60 mm; the diameter of the first screws 22 on both sides is 40 mm, and the length is 2400 mm.

[0052] See also Figure 1 and 7 As shown, a fabric supporting mechanism 40 is also provided below the fabric clamping mechanism 10 for supporting the high-thick special fiber fabric pulled out. The fabric clamping mechanism 10 includes a cloth supporting plate 41 and a connecting member 42 arranged below the lower clamping plate 12. The width of the cloth supporting plate 41 is equal to the distance between the two first guide rails 24, and the length is equal to the length of the two first guide rails 24. The side wall thereof is provided with a plurality of connecting members 42 with screw holes, and the cloth supporting plate 41 is fixed between the two first guide rails 24 by nuts. The first screw rod 22 is arranged on the outside of the first guide rail 24. The fabric pulled out by the primary traction mechanism 20 can be carried on the cloth supporting plate 41 to prevent the tension generated by the fabric being suspended in the air from affecting its performance.

[0053] See also Figure 6As shown, the secondary traction mechanism 30 includes a second screw nut support seat 311 for supporting the primary traction mechanism 20, a second screw 312 movably connected to the second screw nut support seat 311, and a secondary traction motor 313. Figure 6 A second screw rod 312 is provided in the middle of the primary traction mechanism 20 to realize balanced support. Preferably, the secondary traction mechanism 30 further includes two second guide rails 32 provided on both sides of the primary traction mechanism 20 and a slider 33 slidably connected to the second guide rails 32; the slider 33 is also fixedly connected to the primary traction mechanism 20, and is used to slide the primary traction mechanism 20 along the second guide rails 32 to improve the movement stability.

[0054] In a specific embodiment, the second screw nut support seat 311 has a length of 200 mm, a height of 300 mm, and a width of 80 mm.

[0055] In particular, the high-thickness special fiber fabric parallel traction device also includes a frame 50 for supporting and connecting the primary traction mechanism 20 and the secondary traction mechanism 30; the primary traction mechanism 20 is arranged above the frame 50, and the secondary traction mechanism 30 is arranged at the bottom of the frame 50, so that the frame 50 and the primary traction mechanism 20 move together under the traction force of the secondary traction mechanism 30. Figure 2 As shown, the frame 50 includes two first longitudinal support rods parallel to the first screw rod 22, and two first transverse support rods arranged at both ends of the first longitudinal support rod and perpendicular to the first longitudinal support rod; vertical support rods are respectively arranged at the four intersections of the first longitudinal support rod and the first transverse support rod, and two parallel second longitudinal support rods and second transverse support rods are arranged at the lower part of the vertical support rod; the bottom end of the vertical support rod is fixedly connected to the slider 33. The middle part of the second transverse support rod is fixedly connected to the second screw nut support seat 311, so as to ensure that the secondary traction mechanism 30 drives the frame 50 to move.

[0056] In particular, a fabric fixing mechanism is further provided at the end of the primary traction mechanism 20 away from the cloth fell, which is used to fix the fabric pulled out by the fabric clamping mechanism 10, so that the fabric clamping mechanism 10 can slide toward the side close to the cloth fell after releasing the fabric, and the fabric can be fixed by the fabric fixing mechanism. With such a configuration, on the one hand, the fabric clamping mechanism 10 can be moved to the starting position by the primary traction mechanism 20, and then the fabric can be clamped, so that the fabric can be cut from the side of the fabric clamping mechanism 10 away from the cloth fell, overcoming the problem of cloth tension change caused by cutting. On the other hand, when the primary traction mechanism 20 moves to the starting position, the secondary traction mechanism 30 can be moved in the opposite direction synchronously, and the fabric fixed by the fabric fixing mechanism moves with the frame at this time, and textile production can continue; when the primary traction mechanism 20 reaches the starting position, the fabric fixing mechanism is released, and the fabric clamping mechanism is clamped, and at this time, the primary traction mechanism 20 can be moved away from the cloth fell again, and production can continue until the preset cutting length is reached.

[0057] The method for using the parallel traction device for high-thickness special fiber fabric provided by the present invention comprises:

[0058] Step 1: The primary traction mechanism 20 pulls the fabric clamping mechanism 10 and guides the fabric away from the weaving fell;

[0059] Step 2: When the primary traction mechanism 20 reaches the maximum distance, there are two ways to continue production. First, the secondary traction mechanism 30 can be switched to continue traction to ensure the continuity of the equipment. Second, the primary traction mechanism 20 can be manually controlled to move forward (close to the direction of the cloth fell) and the secondary traction mechanism 30 can be manually controlled to move backward, thereby ensuring that the spatial position of the fabric clamping mechanism 10 remains unchanged. When the primary traction mechanism 20 reaches the front end again, the secondary traction mechanism 30 can be stopped to achieve production again, thereby ensuring the continuity of production.

[0060] Step 3: When both the primary traction mechanism 20 and the secondary traction mechanism 30 reach the maximum traction distance, the fabric clamping mechanism 10 can be released, and the primary traction mechanism 20 and the secondary traction mechanism 30 can be manually controlled to move to the front end, and then the fabric is re-clamped to perform traction work again.

[0061] Fourth cloth: At this time, a cutting device can be used to cut off the product at the rear end (away from the side of the cloth fell) of the fabric clamping mechanism 10.

[0062] In summary, the parallel traction device for thick and special fiber fabrics provided by the present invention increases the single traction length without increasing the traction mechanism through two sets of parallel traction mechanisms, reduces the number of equipment stops caused by fabric unloading and the floor space occupied, ensures production efficiency, increases the stability of the traction process, and can avoid fiber damage caused by curling of thick and special fiber fabrics. Moreover, the two-stage traction mechanism can increase the types of movement control modes, providing more options for different textile processes and speeds.

[0063] The above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention.

Claims

1. A parallel traction device for high-thickness special fiber fabrics, characterized in that: include: A fabric clamping mechanism, a primary traction mechanism slidably connected to the fabric clamping mechanism, and a secondary traction mechanism slidably connected to the primary traction mechanism, used to pull the high-thickness special fiber fabric through two-stage sliding guide rails to a preset traction distance; The secondary traction mechanism comprises a second screw nut support seat for supporting the primary traction mechanism, a second screw movably connected to the second screw nut support seat, and a secondary traction motor; the secondary traction mechanism also comprises two second guide rails and a slider slidably connected to the second guide rails; the slider is also fixedly connected to the primary traction mechanism, and is used to slide the primary traction mechanism along the second guide rails; The fabric clamping mechanism comprises an upper clamping plate and a lower clamping plate for clamping fabric; the lower surface of the upper clamping plate and the upper surface of the lower clamping plate are respectively provided with a plurality of mutually engaging grooves for improving clamping stability; the lower surface of the upper clamping plate comprises a middle boss and two side bosses, and the upper surface of the lower clamping plate comprises a matching middle groove and two side grooves; the height of the middle boss is higher than the height of the two side bosses; When in use, the fabric woven from the cloth fell is clamped by the fabric clamping mechanism, and then the sliding process of the primary traction mechanism and the secondary traction mechanism is controlled according to the weaving speed to realize traction of different programs. The control is as follows: first move the primary traction mechanism away from the cloth fell, and then move the secondary traction mechanism away from the cloth fell; or, first move the secondary traction mechanism away from the cloth fell, and then move the primary traction mechanism away from the cloth fell; or, the two traction mechanisms move together; or, the fabric is produced continuously through the opposite displacement of the primary traction mechanism and the secondary traction mechanism.

2. The parallel traction device for high-thickness special fiber fabric according to claim 1 is characterized in that: The fabric clamping mechanism includes a control mechanism for controlling the up and down movement of the upper clamping plate; the control mechanism includes a pad fixedly connected to the upper clamping plate, a rotating rod movably connected to the pad, and a handwheel fixedly connected to the rotating rod; the rotating rod is provided with a thread, and the fabric clamping mechanism also includes a top plate arranged above the upper clamping plate, the top plate is provided with a screw hole matching the thread of the rotating rod; the rotating rod moves up and down relative to the top plate, thereby driving the pad and the upper clamping plate to move up and down, thereby clamping the fabric.

3. The parallel traction device for high-thickness special fiber fabric according to claim 2 is characterized in that: The top of the cushion block is provided with a slot, and the bottom end of the rotating rod is clamped in the slot and can rotate relative to the slot.

4. The parallel traction device for high-thickness special fiber fabric according to claim 1 is characterized in that: The primary traction mechanism comprises: a support frame fixedly connected to the fabric clamping mechanism and a screw traction mechanism movably connected to the support frame.

5. The parallel traction device for high-thickness special fiber fabric according to claim 4 is characterized in that: The support frame includes two groups of first screw nut support seats and sliding support seats, which are respectively fixedly connected to the two ends of the fabric clamping mechanism; the screw traction mechanism includes two first screws movably connected to the first screw nut support seats, a worm gear vertically arranged with the first screw gear, and a primary traction motor; the worm gear is respectively connected to the first screw gear and the primary traction motor through gear transmission.

6. The parallel traction device for high-thickness special fiber fabric according to claim 5, characterized in that: The primary traction mechanism also includes a first guide rail slidably connected to the sliding support seat; the two groups of the first screw nut support seats and the sliding support seats are connected as a whole through a connecting plate; the side wall of the first screw nut support seat is fixed with a positioning bearing through a bearing pin.

7. The parallel traction device for high-thickness special fiber fabrics according to claim 1, characterized in that: Also includes: A fabric supporting mechanism disposed below the fabric clamping mechanism, used to support the pulled-out high-thickness special fiber fabric; frame; Used to support and connect the primary traction mechanism and the secondary traction mechanism; the primary traction mechanism is arranged above the frame, and the secondary traction mechanism is arranged at the bottom of the frame, and is used to make the frame and the primary traction mechanism move together under the secondary traction force; And a fabric fixing mechanism is arranged at one end of the primary traction mechanism away from the cloth fell, and is used to fix the pulled-out fabric, so that the fabric clamping mechanism can slide toward the side close to the cloth fell after releasing the fabric.

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