A warp knitting machine fabric laying device for reducing tension

Abstract

The present invention relates to the technical field of textile machinery, in particular to a warp knitting machine fabric laying device for reducing tension, which includes a support table. An installation frame is arranged inside the support table, and a circular tube is arranged at the center of the installation frame. Laying plates are arranged on both sides of the circular tube. Arc-shaped grooves are formed at one adjacent end of the two laying plates, and the surfaces of the arc-shaped grooves are slidably attached to the surface of the circular tube. A plurality of connecting rings are fixedly connected inside the arc-shaped grooves; in the present invention, the circular tube rises to hang the warp knitting machine fabric, and the hanging position is intermittently toggled and air flow is guided, so that the drooping part of the fabric automatically remains flat under the action of gravity, thereby completing the laying of the warp knitting machine fabric after the circular tube and the laying plate return to the initial position, reducing the influence of the folding direction of the wrinkles of the warp knitting machine fabric on the laying, and improving the laying effect of the warp knitting machine fabric.

Description

Technical Field

[0001] The present invention relates to the technical field of textile machinery, and in particular to a fabric laying device for a warp knitting machine for reducing tension. Background Art

[0002] A warp knitting machine belongs to a kind of knitting machine. Different from a weft knitting machine, a warp knitting machine forms loops through warp yarns. The main characteristics of warp knitted fabrics should be stable structure, high production efficiency, adjustable elasticity, breathable and lightweight, and wide application. However, there may be limitations in designing complex patterns, and the requirements for equipment and raw materials are high.

[0003] A patent document with the publication number CN219469209U discloses a fabric laying device, which relates to the technical field of textile machinery. It includes a frame, on which a material conveying mechanism, a damping mechanism and a leveling mechanism are arranged. The material conveying mechanism is used for conveying the fabric placed on the frame. The damping mechanism is used to provide a damping force opposite to the conveying direction of the material conveying mechanism. The leveling mechanism includes a leveling bracket, a driving member and leveling claws. One end of the leveling bracket is connected to the frame, and the other end is connected to the driving member. The output end of the driving member faces the frame, and the leveling claws are connected to the output end of the driving member.

[0004] In the prior art, when laying a fabric, the top surface of the moving fabric is usually reciprocally contacted and extruded by leveling claws to lay the fabric. However, in the actual operation process, effective contact is required on the surface of the fabric during laying. When the area of the fabric is large, the laying operation takes a long time. When the folding direction of the fabric wrinkles is downward, the contact extrusion of the leveling claws is likely to deepen the folding marks of the fabric. Moreover, due to the continuous contact between the leveling claws and the fabric, tensile tension is generated on the surface of the fabric, and the fabric surface rebounds when the contact disappears, thereby reducing the laying effect of the fabric. Summary of the Invention

[0005] The purpose of the present invention is to solve the deficiencies existing in the prior art, and to propose a fabric laying device for a warp knitting machine for reducing tension.

[0006] To achieve the above object, the technical solution adopted by the present invention is: a fabric laying device for a warp knitting machine for reducing tension, including a support table, an installation frame is arranged inside the support table, a circular tube is arranged at the center of the installation frame, two laying plates are arranged on both sides of the circular tube, arc-shaped grooves are opened at adjacent ends of the two laying plates, the arc-shaped grooves are slidably fitted with the surface of the circular tube, the top surfaces of the two laying plates are flush with the top of the circular tube, a plurality of connecting rings are fixedly connected inside the arc-shaped grooves, a plurality of rotating grooves are opened on the surface of the circular tube, and the connecting rings are rotatably connected inside the corresponding rotating grooves;

[0007] The two paving plates are fixedly connected to a limit ring on one side away from each other, a connecting pin is rotatably connected inside the limit ring, both sides inside the mounting frame are fixedly connected to slide rails, both ends of the connecting pin are slidably connected to the corresponding slide rails, a plurality of air holes are opened on the top of the circular tube, fans are fixedly installed at both ends of the circular tube, a sealing block is fixedly connected to the center position inside the circular tube, and the air holes on both sides of the sealing block are inclined in opposite directions;

[0008] The support platform is connected with a vertical lifting mechanism and an intermittent shifting mechanism, the vertical lifting mechanism drives the circular tube to move upward, and the intermittent shifting mechanism performs reverse intermittent shifting on the textile surface at the top of the circular tube.

[0009] Preferably, the vertical lifting mechanism includes two first hydraulic cylinders, the two first hydraulic cylinders are fixedly mounted on the support platform, and the piston shafts of the two first hydraulic cylinders are fixedly connected to the bottom of the circular tube.

[0010] Preferably, the intermittent toggle mechanism includes a U-shaped frame, the U-shaped frame is fixedly connected to the top of the support platform, two sliders are slidably connected to the top surface of the U-shaped frame, a bidirectional screw rod is rotatably connected to the inside of the U-shaped frame, the two sliders are threadedly connected to the bidirectional screw rod, a first motor is fixedly installed on the U-shaped frame, the output shaft of the first motor is fixedly connected to one end of the bidirectional screw rod, the bottoms of the sliders are fixedly connected to a connecting frame, the connecting frame is rotatably connected to a rotating shaft, a connecting roller is fixedly connected to the rotating shaft, a plurality of flexible claws are rotatably connected to the surface of the connecting roller, a first torsion spring is fixedly installed at the rotating connection between the flexible claws and the connecting roller, and a reverse rotation mechanism is connected to the two rotating shafts.

[0011] Preferably, one end of the flexible claw is provided with an arc-surface groove, and the side edges of the arc-surface groove are all edge-wrapped.

[0012] Preferably, the reverse rotation mechanism comprises two gears, the two gears are respectively fixedly connected to one end of the two rotating shafts, and a rack is fixedly connected inside the U-shaped frame, the rack is located above the two gears and meshes with the gears.

[0013] Preferably, heaters are provided on both sides of the U-shaped frame, a fixed block is slidably connected to the U-shaped frame, one end of the heater is fixedly connected to the fixed block, a rotating screw is rotatably connected to the U-shaped frame, the fixed block is threadedly connected to the rotating screw, a second motor is fixedly installed on the U-shaped frame, and the output shaft of the second motor is fixedly connected to one end of the rotating screw.

[0014] Preferably, the bottoms of the two flat plates are each provided with a clearance groove, the interiors of the clearance grooves are rotatably connected with a flip plate, and a second torsion spring is fixedly installed at the rotational connection of the flip plate.

[0015] Preferably, a limiting shaft is fixedly connected at the center of both sides of the mounting frame, the limiting shaft is rotatably connected to the support platform, the limiting shaft and the circular tube are coaxially arranged, a driving rotation mechanism is connected to the limiting shaft, and one end of the mounting frame is connected to a pressing limiting mechanism.

[0016] Preferably, the driving rotation mechanism includes a fixing bar, which is fixedly connected to one of the limiting shafts, and a strip groove is provided on the fixing bar. A second hydraulic cylinder is fixedly installed on the support platform, and a circular pin is fixedly connected to the piston shaft of the second hydraulic cylinder, and the circular pin is located inside the strip groove.

[0017] Preferably, the pressing and limiting mechanism includes a fixing frame, which is fixedly connected to one end of the top of the mounting frame, a third hydraulic cylinder is fixedly installed on the top of the fixing frame, a piston shaft of the third hydraulic cylinder passes through the fixing frame and extends to the inside of the fixing frame and is fixedly connected to a connecting plate, a pressing plate is arranged below the connecting plate, a plurality of limiting pins are fixedly connected to the top of the pressing plate, the limiting pins are slidably inserted on the connecting plate, a spring is sleeved on the limiting pins, and the spring is fixedly connected between the connecting plate and the pressing plate.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The warp knitted machine textile is suspended by the rising circular tube, and the hanging position is intermittently moved and the air flow is guided, so that the hanging part of the textile is automatically kept flat under the action of gravity, so that the flattening of the warp knitted machine textile is completed after the circular tube and the flattening plate return to the initial position, reducing the influence of the wrinkle folding direction of the warp knitted machine textile on the flattening, and improving the flattening effect of the warp knitted machine textile.

[0020] 2. The reverse rotation mechanism is used to rotate, so that the connecting roller drives the corresponding flexible claw to rotate, so that the top surface of the hanging position of the warp knitting machine textile is moved to both sides along the center, thereby eliminating the wrinkles and folds at the hanging position, and multiple flexible claws are used to contact the surface of the warp knitting machine textile in turn, and elastic torsion is generated under the action of the torsion spring, thereby reducing the time and extrusion force of a single movement, effectively reducing the rebound of the textile due to contact stress, and improving the flatness of the hanging position.

[0021] 3. Press and limit one end of the warp knitting fabric through the pressing and limiting mechanism, and drive the mounting frame to rotate and tilt through the driving and rotating mechanism, so that the pressed and limited end of the warp knitting fabric flips upward, so that the other end slides down along the surface of the flat plate under the action of inclined gravity, so that the raised part between the two flat plates remains flat. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is the first structural schematic diagram of the present invention;

[0023] Figure 2 for the present invention Figure 1 is an enlarged schematic diagram of the structure at A in the present invention;

[0024] Figure 3 for the present invention Figure 1 is an enlarged schematic diagram of the structure at B in the present invention;

[0025] Figure 4 is the second structural schematic diagram of the present invention;

[0026] Figure 5 for the present invention Figure 4 is an enlarged schematic diagram of the structure at C in the present invention;

[0027] Figure 6 for the present invention Figure 4 is an enlarged schematic diagram of the structure at D in the present invention;

[0028] Figure 7 is the first matching structural schematic diagram of the circular tube and the flat plate of the present invention (the circular tube is in the initial state);

[0029] Figure 8 is the second matching structural schematic diagram of the circular tube and the flat plate of the present invention (the circular tube rises to the highest point);

[0030] Figure 9 is the structural schematic diagram of the flat plate of the present invention;

[0031] Figure 10 for the present invention Figure 9 is an enlarged schematic diagram of the structure at E in the present invention;

[0032] Figure 11 is the matching structural schematic diagram of the circular tube and the fan of the present invention;

[0033] Figure 12 is the cross-sectional structural schematic diagram of the circular tube of the present invention;

[0034] Figure 13 is the matching structural schematic diagram of the U-shaped frame and the flexible pawl of the present invention;

[0035] Figure 14 for the present inventionFigure 13 Schematic enlarged view of the structure at position F in

[0036] Figure 15 Schematic view of the cooperation structure of the fixing frame and the pressing plate of the present invention;

[0037] Figure 16 For the present invention Figure 15 Schematic enlarged view of the structure at position G in

[0038] In the figure: 1, support table; 2, mounting frame; 3, circular tube; 4, paving plate; 5, arc groove; 6, connecting ring; 7, rotating groove; 8, limiting ring; 9, connecting pin; 10, slide rail; 11, air hole; 12, fan; 13, sealing block; 14, first hydraulic cylinder; 15, U-shaped frame; 16, slider; 17, bidirectional lead screw; 18, first motor; 19, connecting frame; 20, rotating shaft; 21, connecting roller; 22, flexible pawl; 23, first torsion spring; 24, arc surface groove; 25, gear; 26, rack; 27, heater; 28, fixed block; 29, rotating lead screw; 30, second motor; 31, relief groove; 32, turning plate; 33, second torsion spring; 34, limiting shaft; 35, fixing strip; 36, strip groove; 37, second hydraulic cylinder; 38, circular pin; 39, fixing frame; 40, third hydraulic cylinder; 41, connecting plate; 42, pressing plate; 43, limiting pin; 44, spring. Detailed implementation manners

[0039] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments in the following description are only examples, and those skilled in the art can think of other obvious variations.

[0040] As Figures 1 to 16 shown, a warp knitting machine fabric paving device for reducing tension includes a support table 1. An installation frame 2 is arranged inside the support table 1. A circular tube 3 is arranged at the center of the installation frame 2. Paving plates 4 are arranged on both sides of the circular tube 3. Arc grooves 5 (as Figure 9 shown) are opened at one adjacent end of the two paving plates 4. The arc grooves 5 are slidably attached to the surfaces of the circular tube 3. The top surfaces of the two paving plates 4 are flush with the top of the circular tube 3. A plurality of connecting rings 6 are fixedly connected inside the arc grooves 5. A plurality of rotating grooves 7 (as Figure 11 shown) are opened on the surface of the circular tube 3. The connecting rings 6 are rotatably connected inside the corresponding rotating grooves 7;

[0041] Limiting rings 8 (as Figure 7As shown in the figure), a connecting pin 9 is rotatably connected inside the limiting ring 8. Sliding rails 10 are fixedly connected to both sides inside the mounting frame 2. The two ends of the connecting pin 9 are respectively slidably connected to the corresponding sliding rails 10. A plurality of air holes 11 are opened at the top of the circular tube 3. Air blowers 12 are fixedly installed at both ends of the circular tube 3. A sealing block 13 is fixedly connected to the central position inside the circular tube 3 (as Figure 12 shown), and the air holes 11 on both sides of the sealing block 13 are inclined in opposite directions;

[0042] A vertical lifting mechanism and an intermittent toggle mechanism are connected to the support platform 1, and the circular tube 3 is driven to move upward by the vertical lifting mechanism, and the textile surface on the top of the circular tube 3 is intermittently toggled in the reverse direction by the intermittent toggle mechanism; during operation, the prior art usually uses a leveling claw to reciprocately contact and squeeze the top surface of the moving textile to flatten the textile, but in the actual operation process, the flattening of the textile requires effective contact on its surface. When the area of ​​the textile is large, the flattening operation consumes a long time. When the wrinkles of the textile are folded downward, the contact and squeezing of the leveling claws easily cause the folding marks of the textile to deepen, and due to the continuous contact between the leveling claws and the textile, tensile tension is generated on the textile surface, and the textile surface rebounds when the contact disappears, thereby reducing the flattening effect of the textile;The technical solution can solve the above problems. The specific working method is as follows: the warp knitted machine textile is placed on the top surface of the two flat plates 4, and the circular tube 3 is driven to rise vertically through the action of the vertical lifting mechanism. The circular tube 3 drives the adjacent ends of the two flat plates 4 to move upward through the rotation connection of the connecting ring 6 on the rotating groove 7, so that the arc groove 5 always slides along the surface of the circular tube 3, so that the top surface of the flat plate 4 is always tangent to the surface of the circular tube 3. The other end of the flat plate 4 is limited by the limiting ring 8 and rotates along the rotating connection of the connecting pin 9, and at the same time drives the connecting pin 9 to slide along the slide rail 10, so that the adjacent ends of the two flat plates 4 bulge along the surface of the circular tube 3, and drive the warp knitted machine textile from the middle The circular tube 3 is supported in the position. When the circular tube 3 rises to the highest position, the two flat plates 4 are perpendicular to the mounting frame 2, so that the circular tube 3 can suspend and support the warp knitted machine textile. Then, the intermittent toggling mechanism is used to intermittently toggle the hanging position of the warp knitted machine textile so that the folds stacked at the hanging position of the warp knitted machine textile are smoothed along the center to both sides. At the same time, the fans 12 at both ends of the circular tube 3 are used to allow air to enter the circular tube 3, and the interior of the circular tube 3 is divided into two areas through the sealing block 13, so that the gas in the corresponding area is discharged along the air holes 11 in the corresponding directions, and the air holes 11 on both sides of the sealing block 13 are tilted in opposite directions, so that an airflow tilted from the center to both sides is generated at the bottom of the hanging position of the warp knitted machine textile, and the intermittent toggling mechanism is used. The action of the mechanism causes a reverse force to be generated on the upper and lower surfaces of the hanging position of the warp knitted machine textile, thereby reducing the influence of the folding direction of the warp knitted machine textile on the flatness, and preventing the continuous increase of the stretching tension by intermittent toggling, thereby reducing the influence of the textile rebound on the flatness of the warp knitted machine textile. After the intermittent toggling mechanism finishes working, the fan 12 stops intake air at the same time. When the warp knitted machine textile is located at the hanging position on the surface of the circular tube 3 and remains flat, the hanging parts at both ends of the warp knitted machine textile are automatically kept flat under the action of gravity, and finally the circular tube 3 is driven back to the initial position by the reverse action of the vertical lifting mechanism, so that the top surfaces of the two flattening plates 4 are flush with the top surface of the circular tube 3 again, and the warp knitted machine textile is horizontally supported by the two flattening plates 4, thereby To complete the flattening of warp knitted machine textiles, the circular tube 3 is raised to suspend the warp knitted machine textiles, and the hanging position is intermittently toggled and the air flow is guided, so that the hanging part of the textiles is automatically kept flat under the action of gravity, so that the flattening of the warp knitted machine textiles is completed after the circular tube 3 and the flattening plate 4 return to the initial position. When flattening, it is only necessary to flatten the hanging position of the textiles, and then use the gravity generated by the hanging to make the two ends of the textiles naturally flattened, thereby reducing the time consumed for flattening, improving the flattening efficiency of the textiles, and reducing the influence of the folding direction of the warp knitted machine textiles on the flattening, and the natural degree of flattening is improved by the hanging effect generated by gravity, reducing the rebound wrinkles generated by the tensile tension during flattening, and improving the flattening effect of the warp knitted machine textiles. ;

[0043] As a further implementation scheme of the present invention, the vertical lifting mechanism includes two first hydraulic cylinders 14, and the two first hydraulic cylinders 14 are fixedly installed on the support platform 1, and the piston shafts of the two first hydraulic cylinders 14 are fixedly connected to the bottom of the circular tube 3; when working, the piston shafts of the two first hydraulic cylinders 14 rise synchronously, thereby driving the circular tube 3 to move vertically upward, and the circular tube 3 is driven to descend by the reverse movement of the piston shafts of the first hydraulic cylinders 14.

[0044] As a further embodiment of the present invention, the intermittent toggle mechanism includes a U-shaped frame 15, the U-shaped frame 15 is fixedly connected to the top of the support platform 1, and two sliders 16 (such as Figure 14 As shown in the figure, the U-shaped frame 15 is internally rotatably connected with a bidirectional screw rod 17, and two sliders 16 are both threadedly connected to the bidirectional screw rod 17. A first motor 18 is fixedly installed on the U-shaped frame 15, and the output shaft of the first motor 18 is fixedly connected to one end of the bidirectional screw rod 17. The bottom of the slider 16 is fixedly connected to a connecting frame 19, and the internal rotation of the connecting frame 19 is connected to a rotating shaft 20, and a connecting roller 21 is fixedly connected to the rotating shaft 20. The surface of the connecting roller 21 is rotatably connected with a plurality of flexible claws 22, and the first torsion spring 23 is fixedly installed at the rotation connection between the flexible claw 22 and the connecting roller 21. A reverse rotation mechanism is connected to the two rotating shafts 20; when working, the circular tube 3 drives the warp knitting machine textile to move upward and contact the corresponding flexible claw 22, so that the flexible claw 22 rotates along the rotating connection, and the corresponding first torsion spring 23 is twisted, so that the flexible claw 22 rotates along the rotating connection, and the corresponding first torsion spring 23 is twisted, so that the flexible claw 22 One end of the first motor 18 is in elastic contact with the top surface of the warp knitting machine textile hanging position, and then the output shaft of the first motor 18 drives the bidirectional lead screw 17 to rotate, and the threaded connection between the bidirectional lead screw 17 and the two sliders 16 makes the two sliders 16 move away from each other along the sliding connection, thereby driving the two connecting frames 19 to move away from each other. When the connecting rollers 21 inside the two connecting frames 19 move away from each other, they are rotated by the action of the reverse rotation mechanism, so that the connecting rollers 21 drive the corresponding flexible claws 22 to rotate, thereby moving the top surface of the warp knitting machine textile hanging position toward both sides along the center, thereby eliminating wrinkles and folds at the hanging position, and contacting the surface of the warp knitting machine textile in turn through multiple flexible claws 22, and generating elastic torsion under the action of the torsion spring, thereby reducing the time and extrusion force of a single shift, effectively reducing the rebound of the textile due to contact stress, and improving the flatness of the hanging position.

[0045] As a further implementation scheme of the present invention, one end of the flexible claw 22 is provided with an arc groove 24, and the side edges of the arc groove 24 are all hemmed; when working, by providing the arc groove 24 at one end of the flexible claw 22, the contact area between the flexible claw 22 and the hanging position of the warp knitted machine textile is increased, thereby improving the effect of leveling by pulling.

[0046] As a further implementation scheme of the present invention, the reverse rotation mechanism includes two gears 25, which are respectively fixedly connected to one end of the two rotating shafts 20, and a rack 26 is fixedly connected to the inside of the U-shaped frame 15, and the rack 26 is located above the two gears 25 and meshes with the gears 25; when working, when the two connecting frames 19 drive the corresponding rotating shafts 20 away from each other, the meshing action between the rack 26 and the gear 25 causes the two gears 25 to mesh and rotate, thereby driving the rotating shaft 20 to rotate.

[0047] As a further embodiment of the present invention, heaters 27 (such as Figure 6 As shown in the figure, a fixed block 28 is slidably connected to the U-shaped frame 15, one end of the heater 27 is fixedly connected to the fixed block 28, a rotating screw 29 is rotatably connected to the U-shaped frame 15, the fixed block 28 is threadedly connected to the rotating screw 29, a second motor 30 is fixedly installed on the U-shaped frame 15, and the output shaft of the second motor 30 is fixedly connected to one end of the rotating screw 29; during operation, when the warp knitting machine textile is raised by the circular tube 3 for support and suspension, the hanging parts at both ends of the warp knitting machine textile are located below between the two heaters 27, and the rotating screw 29 is driven to rotate by the output shaft of the second motor 30, and the fixed block 28 is moved downward along the sliding connection through the threaded connection between the rotating screw 29 and the fixed block 28, thereby driving the two heaters 27 to move downward, and the hanging parts at both ends of the warp knitting machine textile are moved and heated, and the crease marks on the surface of the warp knitting machine textile caused by stacking wrinkles are reduced by heating, thereby improving the flatness of the warp knitting machine textile.

[0048] As a further embodiment of the present invention, the bottoms of the two tiling plates 4 are provided with a clearance groove 31 (such as Figure 10As shown in the figure, the inside of the give way slot 31 is rotatably connected with a flip plate 32, and the rotating connection of the flip plate 32 is fixedly installed with a second torsion spring 33; when working, the flip plate 32 is flipped toward the outside of the give way slot 31 along the rotating connection through the action of the second torsion spring 33, and when the circular tube 3 rises to the highest position, the two flat plates 4 are perpendicular to the mounting frame 2, and at this time, the two flip plates 32 are in contact and squeezed with each other, and move to the corresponding give way slot 31 through the squeezing action, and when the circular tube 3 moves downward and returns to the initial position, the torsion of the second torsion spring 33 causes the two flip plates 32 to interact with each other, and drives the two flat plates 4 to unfold along the rotating connection of the connecting ring 6, thereby preventing the flat plates 4 from vertically supporting the circular tube 3 and restricting the circular tube 3 from moving downward.

[0049] As a further implementation scheme of the present invention, the centers of both sides of the mounting frame 2 are fixedly connected to limit shafts 34, and the limit shafts 34 are rotatably connected to the support platform 1. The limit shafts 34 and the circular tube 3 are coaxially arranged, and a driving rotation mechanism is connected to the limit shaft 34, and one end of the mounting frame 2 is connected to a pressing limit mechanism; during operation, after the circular tube 3 supports the warp knitted machine textile and returns to the initial position, the two flattening plates 4 approach each other along the sliding fit of the arc groove 5 and cover the top of the circular tube 3, thereby causing the flattened warp knitted machine textile to have excess bulges between the two flattening plates 4, and one end of the warp knitted machine textile is pressed and limited by the pressing limit mechanism, and the mounting frame 2 is driven to rotate and tilt by the driving rotation mechanism, so that the end of the warp knitted machine textile that is pressed and limited is flipped upward, so that the other end slides down along the surface of the flattening plate 4 under the action of the inclined gravity, so that the bulge between the two flattening plates 4 remains flat.

[0050] As a further implementation scheme of the present invention, the driving rotation mechanism includes a fixed bar 35, which is fixedly connected to one of the limit shafts 34. A strip groove 36 is opened on the fixed bar 35. A second hydraulic cylinder 37 is fixedly installed on the support platform 1. A round pin 38 is fixedly connected to the piston shaft of the second hydraulic cylinder 37, and the round pin 38 is located inside the strip groove 36. When working, the circular pin 38 is driven to move in the strip groove 36 by the movement of the piston shaft of the second hydraulic cylinder 37, so that the fixed bar 35 drives the corresponding limit shaft 34 to rotate, so that the mounting frame 2 is flipped and tilted inside the support platform 1, and the sliding limiting effect of the slide rail 10 on the connecting pin 9 makes the two flat plates 4 synchronously flipped and tilted along the surface of the circular tube 3, so that the warp knitting machine textile on the top of the flat plate 4 is tilted toward one end, and the piston shaft of the second hydraulic cylinder 37 is reciprocated in a small range, so that the warp knitting machine textile is shaken in the tilted state, thereby improving the efficiency of eliminating bulges of the warp knitting machine textile.

[0051] As a further embodiment of the present invention, the pressing and limiting mechanism includes a fixing frame 39, which is fixedly connected to one end of the top of the mounting frame 2. A third hydraulic cylinder 40 is fixedly installed on the top of the fixing frame 39. The piston rod of the third hydraulic cylinder 40 penetrates through the fixing frame 39 and extends into the interior of the fixing frame 39 and is fixedly connected to a connecting plate 41. A pressing plate 42 is arranged below the connecting plate 41 (as shown in Figure 16 ), a plurality of limiting pins 43 are fixedly connected to the top of the pressing plate 42, the limiting pins 43 are all slidably inserted on the connecting plate 41, and a spring 44 is sleeved on each limiting pin 43. The spring 44 is fixedly connected between the connecting plate 41 and the pressing plate 42; during operation, the piston rod of the third hydraulic cylinder 40 drives the connecting plate 41 to move downward, and the pressing plate 42 moves downward synchronously. After the pressing plate 42 contacts the top surface of one end of the warp knitting machine fabric, as the connecting plate 41 continues to move, the limiting pins 43 move along the sliding insertion part of the connecting plate 41 and compress the spring 44 to generate a compressive deformation, so that one end of the warp knitting machine fabric is elastically pressed through the pressing plate 42, ensuring the stability of the warp knitting machine fabric when it rotates and tilts.

[0052] The working principle of the present invention:

[0053] The warp knitted machine textile is placed on the top surface of the two flat plates 4, and the circular tube 3 is driven to rise vertically through the action of the vertical lifting mechanism. The circular tube 3 drives the adjacent ends of the two flat plates 4 to move upward through the rotation connection of the connecting ring 6 on the rotating groove 7, so that the arc groove 5 always slides along the surface of the circular tube 3, so that the top surface of the flat plate 4 is always tangent to the surface of the circular tube 3. The other end of the flat plate 4 is limited by the limiting ring 8 and rotates along the rotating connection of the connecting pin 9, while driving the connecting pin 9 to slide along the slide rail 10, so that the adjacent ends of the two flat plates 4 bulge along the surface of the circular tube 3, and drive the warp knitted machine textile to be supported from the middle position. When the circular tube 3 rises to the highest position , the two flat plates 4 are perpendicular to the mounting frame 2, so that the circular tube 3 can suspend and support the warp knitted machine textile, and then the intermittent toggle mechanism is used to intermittently toggle the hanging position of the warp knitted machine textile, so that the folds stacked at the hanging position of the warp knitted machine textile are smoothed along the center to both sides, and at the same time, the fans 12 at both ends of the circular tube 3 are used to allow air to enter the circular tube 3, and the interior of the circular tube 3 is divided into two areas through the sealing block 13, so that the gas in the corresponding area is discharged along the air holes 11 in the corresponding direction, and the air holes 11 on both sides of the sealing block 13 are inclined in opposite directions, so that an airflow inclined from the center to both sides is generated at the bottom of the hanging position of the warp knitted machine textile, and the intermittent toggle mechanism is used to make the warp knitted machine textile hanging The upper and lower surfaces of the position generate reverse forces, which reduce the influence of the folding direction of the warp knitted textile on the flatness, and prevent the continuous increase of stretching tension by intermittent toggling, thereby reducing the influence of textile rebound on the flatness of the warp knitted textile. After the intermittent toggling mechanism finishes working, the fan 12 stops intake air at the same time. When the warp knitted textile is in a hanging position on the surface of the circular tube 3 and remains flat, the hanging parts at both ends of the warp knitted textile are automatically kept flat under the action of gravity, and finally the circular tube 3 is driven back to the initial position by the reverse action of the vertical lifting mechanism, so that the top surfaces of the two flattening plates 4 are flush with the top surface of the circular tube 3 again, and the warp knitted textile is horizontally supported by the two flattening plates 4, thereby completing the warp knitting. The fabric is laid flat by suspending the warp knitted machine textile through the rising circular tube 3, and the hanging position is intermittently moved and the air flow is guided, so that the hanging part of the textile is automatically kept flat under the action of gravity, and the laying of the warp knitted machine textile is completed after the circular tube 3 and the laying plate 4 return to the initial position. When laying, it is only necessary to level the hanging position of the textile, and then use the gravity generated by the hanging to make the two ends of the textile naturally lay flat, thereby reducing the time consumed for laying, improving the laying efficiency of the textile, and reducing the influence of the folding direction of the wrinkles of the warp knitted machine textile on the laying, and the natural degree of laying is improved by the hanging effect generated by gravity, reducing the rebound wrinkles caused by the tensile tension during laying, and improving the laying effect of the warp knitted machine textile.

[0054] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A warp knitting machine fabric laying device for reducing tension, including a support table, characterized in that, A mounting frame is provided inside the support platform, a circular tube is provided at the center of the mounting frame, flat plates are provided on both sides of the circular tube, arc grooves are provided at adjacent ends of the two flat plates, the arc grooves and the surfaces of the circular tubes are slidably fitted, the top surfaces of the two flat plates are flush with the top of the circular tubes, a plurality of connecting rings are fixedly connected inside the arc grooves, a plurality of rotating grooves are provided on the surface of the circular tubes, and the connecting rings are rotatably connected inside the corresponding rotating grooves; The two paving plates are fixedly connected to the limiting rings on the sides away from each other, the limiting rings are rotatably connected with connecting pins inside, the two sides inside the mounting frame are fixedly connected with slide rails, the two ends of the connecting pins are slidably connected to the corresponding slide rails, a plurality of air holes are opened on the top of the circular tube, fans are fixedly installed at both ends of the circular tube, a sealing block is fixedly connected to the center position inside the circular tube, and the air holes on both sides of the sealing block are inclined in opposite directions; The support platform is connected with a vertical lifting mechanism and an intermittent toggling mechanism, the vertical lifting mechanism drives the circular tube to move upward, and the intermittent toggling mechanism performs reverse intermittent toggling on the textile surface on the top of the circular tube.

2. The weft knitting fabric laying device for reducing tension according to claim 1, characterized in that, The vertical lifting mechanism comprises two first hydraulic cylinders, both of which are fixedly mounted on the support platform, and the piston shafts of the two first hydraulic cylinders are fixedly connected to the bottom of the circular tube.

3. The warp knitting machine fabric laying device for reducing tension according to claim 1, characterized in that, The intermittent toggle mechanism includes a U-shaped frame, which is fixedly connected to the top of the support platform, and two sliders are slidably connected to the top surface of the U-shaped frame, and a bidirectional screw rod is rotatably connected to the inside of the U-shaped frame, and the two sliders are threadedly connected to the bidirectional screw rod, and a first motor is fixedly installed on the U-shaped frame, and the output shaft of the first motor is fixedly connected to one end of the bidirectional screw rod, and the bottom of the slider is fixedly connected to a connecting frame, and the inside of the connecting frame is rotatably connected to a rotating shaft, and a connecting roller is fixedly connected to the rotating shaft, and a plurality of flexible claws are rotatably connected to the surface of the connecting roller, and a first torsion spring is fixedly installed at the rotating connection between the flexible claws and the connecting roller, and a reverse rotation mechanism is connected to the two rotating shafts.

4. A warp knitting machine fabric laying device for reducing tension according to claim 3, characterized in that, One end of the flexible claw is provided with an arc groove, and the side edges of the arc groove are all edge-wrapped.

5. The laying device for warp knitting fabric for reducing tension according to claim 3, characterized in that, The reverse rotation mechanism comprises two gears which are respectively fixedly connected to one end of the two rotating shafts. A rack is fixedly connected inside the U-shaped frame. The rack is located above the two gears and meshes with the gears.

6. The warp knitting fabric laying device for reducing tension according to claim 3, characterized in that, Heaters are provided on both sides of the U-shaped frame, a fixed block is slidably connected to the U-shaped frame, one end of the heater is fixedly connected to the fixed block, a rotating screw is rotatably connected to the U-shaped frame, the fixed block is threadedly connected to the rotating screw, a second motor is fixedly installed on the U-shaped frame, and the output shaft of the second motor is fixedly connected to one end of the rotating screw.

7. A warp knitting machine fabric laying device for reducing tension according to claim 1, characterized in that, The bottoms of the two flat plates are each provided with a clearance groove, the interiors of the clearance grooves are rotatably connected with a flip plate, and a second torsion spring is fixedly installed at the rotation connection of the flip plate.

8. A warp knitting machine fabric laying device for reducing tension according to claim 1, characterized in that, The centers of both sides of the mounting frame are fixedly connected to limit shafts, which are rotatably connected to the support platform. The limit shafts and the circular tube are coaxially arranged, a driving rotation mechanism is connected to the limit shaft, and one end of the mounting frame is connected to a pressing limit mechanism.

9. The weft knitting fabric laying device for reducing tension according to claim 8, characterized in that The driving rotation mechanism includes a fixed bar, which is fixedly connected to one of the limit shafts. A strip-shaped groove is formed in the fixed bar. A second hydraulic cylinder is fixedly installed on the support table, and a circular pin is fixedly connected to the piston shaft of the second hydraulic cylinder. The circular pin is located inside the strip-shaped groove.

10. A warp knitting machine fabric laying device for reducing tension according to claim 8, characterized in that, The pressing limit mechanism includes a fixed frame, which is fixedly connected to one end of the top of the mounting frame. A third hydraulic cylinder is fixedly installed on the top of the fixed frame. The piston shaft of the third hydraulic cylinder penetrates through the fixed frame and extends into the interior of the fixed frame and is fixedly connected to a connecting plate. A pressing plate is arranged below the connecting plate. A plurality of limit pins are fixedly connected to the top of the pressing plate, and the limit pins are all slidably inserted on the connecting plate. Springs are sleeved on the limit pins, and the springs are fixedly connected between the connecting plate and the pressing plate.

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