Vertical web-type yarnless stitchbonding machine with clamping feeding device

Abstract

Provided is a vertical fiber net type yarnless stitching machine with a clamping feeding device, which has a vertical machine table; a clamping fiber net feeding device is installed at the fiber net feeding end of the vertical machine table; the clamping fiber net feeding device includes upper and lower clamping feeding devices that can adjust speed, spacing, and angle; a vertical fiber net type yarnless stitching mechanism is provided at the discharge end of the clamping fiber net feeding device; the vertical fiber net type yarnless stitching mechanism includes a groove needle assembly and a curved needle assembly at the bottom; a pad net comb assembly at the top; a rear beam assembly at the rear, and a sinker assembly in the middle. The invention has a more compact structure than a horizontal stitching mechanism, less equipment vibration, less fabric transmission resistance, and has the advantages of being economical, practical, and highly efficient in production.

Description

Technical Field

[0001] The invention belongs to the technical field of textile weaving equipment, and in particular relates to an upright fiber net type yarn-free stitching machine with a clamping feeding device. Background Art

[0002] As a kind of textile machinery, stitching machines are generally divided into yarn stitching machines and yarnless stitching machines. Among them, the difference between the yarnless stitching machine and the yarn stitching machine is that although the yarnless stitching machine does not have the transmission of warp yarn, it can use the short fibers of the fiber net itself that are randomly interwoven in multiple directions, and the repeated overlapping, interlacing and interaction between the pulling, threading and hooking actions of the stitching mechanism to regularly and repeatedly knot, entangle and stitch the disordered short fibers, thereby forming a more dense and orderly suede stitched fabric with a certain strength and a full feel.

[0003] Under the existing technology, fiber mesh yarnless sewing machines are all horizontal sewing equipment. When working, the weaving mechanism reciprocates in the horizontal direction to complete the sewing action. The disadvantages are: 1. The horizontal reciprocating motion resistance of the sewing mechanism is large, the sewing operation area is large, and the equipment vibrates severely; 2. There is limited space to add auxiliary mechanisms in the fiber mesh feeding area; 3. The horizontal reciprocating motion of the sewing mechanism is very easy to cause accumulation and wrinkles when the laminated fiber mesh is fed, resulting in quality defects such as broken needles and needle marks during the sewing process, and the production quality of the sewn non-woven fabric is not stable; 4. The sewing mechanism reciprocates horizontally, and the average weaving speed of the sewing machine cannot be effectively improved, and the production efficiency is relatively low. In this regard, the following improved technical solutions are proposed. Summary of the invention

[0004] The technical problem solved by the present invention is to provide an upright fiber web type yarnless sewing machine with a clamping feeding device, which combines the clamping fiber web feeding device with the upright fiber web type yarnless sewing mechanism to solve a series of technical problems existing in the horizontal sewing machine as described in the background technology.

[0005] The technical solution adopted by the present invention: an upright fiber web type yarn-free stitching machine with a clamping feeding device, characterized in that: it has a vertical machine table; a clamping fiber web feeding device is installed at the fiber web feeding end of the vertical machine table; the clamping fiber web feeding device includes an upper clamping feeding device and a lower clamping feeding device which can respectively adjust the speed, clamping spacing and feeding angle; the discharge end of the clamping fiber web feeding device is provided with an upright fiber web type yarn-free stitching mechanism; the upright fiber web type yarn-free stitching mechanism includes a vertical groove needle assembly and a bending needle assembly which are arranged below the fiber web for repeatedly hooking fibers, and a sinker assembly is also arranged below the fiber web, which is intersected with the groove needle assembly; a vertical pad net comb assembly installed above the fiber web is arranged directly above the groove needle assembly, the bending needle assembly and the sinker assembly; a vertical fixed rear beam assembly is arranged at the same height and horizontally behind the pad net comb assembly.

[0006] In the above technical scheme, further: the upper clamping and feeding device includes an upper active roller, an upper driven roller, an upper conveying leather curtain and an upper servo motor; the lower clamping and feeding device includes a lower active roller, a lower driven roller, a lower conveying leather curtain and a lower servo motor; the upper and lower servo motors respectively drive the upper and lower active rollers to rotate; the upper and lower servo motors are connected to a speed control system; the speed control system includes a power supply, a switch, a servo driver and a speed regulator.

[0007] In the above technical scheme, further: the upper clamping and feeding device is tilted and conveyed obliquely downward; the lower clamping and feeding device is tilted and conveyed obliquely downward; the final clamping and feeding inclination angle formed by the conveying ends of the upper clamping and feeding device and the lower clamping and feeding device is 30°~60°; the upper clamping and feeding device and the lower clamping and feeding device are connected as a whole with the feeding machine frame; the bottom end of the frame body of the feeding end of the feeding machine frame is hingedly connected to the cylinder piston rod execution end; the cylinder is located below the front end of the conveying end of the lower clamping and feeding device and is supported and installed obliquely upward; the cylinder is used to adjust the final clamping and feeding inclination angle formed by the conveying ends of the upper clamping and feeding device and the lower clamping and feeding device.

[0008] In the above technical solution, further: the clamping fiber web feeding device includes a feeding frame; a vertically inclined first strip hole is formed above the feeding end of the feeding frame; a horizontally inclined second strip hole is formed below the feeding end of the feeding frame; the first strip hole and the second strip hole are perpendicular to each other; the first strip hole is used to adjust the height of the drive roller of the upper clamping feeding device; the second strip hole is used to adjust the height of the drive roller of the lower clamping feeding device.

[0009] In the above technical scheme, further: a baffle guide assembly is provided between the clamping fiber web feeding device and the upright fiber web type yarn-free sewing mechanism; the baffle guide assembly includes an upper baffle and a lower baffle; the guide ends of the upper baffle and the lower baffle form a guide angle, the guide angle is inclined obliquely downward, and the inclination angle of the guide angle is 45°; the guide end of the guide angle is arranged opposite to the feeding end of the upright fiber web type yarn-free sewing mechanism.

[0010] In the above technical scheme, further: a groove needle for vertically reciprocating upward and used to hook fibers is fixedly installed at the end of the groove needle assembly, and the groove needle is a vertical comb tooth structure; the top needle head of the groove needle abuts against the lower middle part of the sinker body in the sinker assembly; the bottom end of the groove needle body is fixedly connected to the vertically arranged groove needle bed; the middle part of the back side of the groove needle bed is fixedly connected to the top of the groove needle bed bracket; the bottom end of the groove needle bed bracket is fixedly connected to the top of the vertically reciprocating driving shaft A; the driving shaft A is supported by the coaxial guide adapter of the sleeve A; the outer side of the sleeve A is fixedly connected to the vertical machine as a whole.

[0011] In the above technical scheme, further: the end of the bending needle assembly is tilted and fixedly supported to install the bending needle; the end of the bending needle has an obtuse-angled comb tooth structure; the obtuse-angled bending part of the bending needle is tilted upward, and the end of the bending needle is arranged toward and close to the middle of the groove needle body in the groove needle assembly; the bending needle is tilted and fixedly supported and installed by an inclined bending needle bed; the middle part of the back side of the vertical part of the bending needle bed is fixedly connected to the top of the bending needle bed bracket; the bottom end of the bending needle bed bracket is fixedly connected to the top of the vertical reciprocating driving shaft B as a whole; the driving shaft B is supported by the coaxial guiding adapter of the sleeve B; the outer side of the sleeve B is fixedly connected to the vertical machine as a whole.

[0012] In the above technical scheme, further: the end of the pad net comb assembly is provided with a pad net comb; the lower end of the pad net comb has an arc-shaped comb tooth structure; the arc-shaped comb teeth at the lower end of the pad net comb are located directly above the sinker of the sinker assembly provided in the gap between the groove needle of the groove needle assembly and the curved needle of the curved needle assembly; the pad net comb is fixed to the lower end of the pad net comb needle bed facing vertically downward; the upper end of the pad net comb needle bed is fixedly connected to the lower end of the support shaft installed downward on the vertical machine.

[0013] In the above technical scheme, further: the sinker assembly has a sinker, the sinker is a rake claw structure, a needle groove is opened on the top of the rake claw structure, and the groove needle of the groove needle assembly passes through the needle groove and is inserted into the upper fiber net to hook the fiber; the bending direction of the rake claw of the sinker is opposite to the bending direction of the bending needle in the bending needle assembly, and the highest bending point of the rake claw of the sinker is just tangent to the lowest point of the lower end of the pad net comb in the pad net comb assembly; the bottom end of the sinker is fixed to one side of the top end of the vertically arranged sinker needle bed, and the bottom end of the sinker needle bed is fixedly connected to the top of the vertical bracket on the upper end surface of the vertical machine table.

[0014] In the above technical scheme, further: the rear beam assembly has a rear beam; the rear beam is horizontally arranged and is a guide structure with a smooth surface; the rear beam is located in the pad net comb assembly and is arranged directly behind the pad net comb along the running direction of the sewn non-woven fabric; the top end of the rear side of the rear beam is fixed to the lower end of the rear beam plate seat of the vertical structure; the upper end of the rear beam plate seat is fixed to the lower side of the top of the vertical machine; a cloth guide roller is provided in the horizontal direction away from the rear beam and in the transmission direction of the rear beam; a tension roller is provided in the horizontal direction below the cloth guide roller; the sewn non-woven fabric is guided out from the lower horizontal direction of the rear beam away from the rear beam through the cloth guide roller and the tension roller and then rolled into a roll; the surface of the cloth guide roller and the tension roller is a hemp surface structure.

[0015] The advantages of the present invention compared with the prior art are:

[0016] 1. The clamping feeding of the present invention can compress and stack the fiber web before stitching to increase the density of stitching.

[0017] 2. The present invention adjusts the speed difference between the upper servo motor and the lower servo motor through a speed regulator. For example, the speed of the upper servo motor is adjusted to be greater than the speed of the lower servo motor, thereby realizing the sewing of fiber webs of different thicknesses. It can always ensure that the uppermost fiber web and the lowermost fiber web can be synchronously fed into the sewing area, preventing the occurrence of wrinkle quality defects, improving the sewing quality, and stabilizing the production quality.

[0018] 3. The present invention adjusts the installation height of the upper clamping and feeding device and the lower clamping and feeding device drive rollers through the first strip hole and the second strip hole respectively, thereby adjusting the clamping spacing, realizing the clamping, transmission and conveying of fiber webs of different thicknesses, and solving the problem of adaptive adjustment in the production of stitched non-woven fabrics of different thicknesses.

[0019] 4. The cylinder of the present invention is used, on the one hand, for overall lifting and adjusting the feeding angle, and on the other hand, for fully exposing the sewing mechanism after lifting the feeding mechanism when the equipment is shut down for maintenance, so as to facilitate the maintenance of the sewing mechanism; thus, the technical problems of adjusting the optimal feeding angle of the sewing equipment and facilitating maintenance are solved.

[0020] 5. The present invention hooks the fiber bundles through the cross-coordinated reciprocating motion of the groove needles and the curved needles, and pads the fiber net into the groove needle grooves through the padding net comb; the old coil is blocked by the sinker so that the groove needle can move upward again to hook new fibers; and the sinker prevents the groove needle hook from hooking the old coil, thereby smoothly passing the new fiber bundle hooked by the groove needle through the old coil to form a new coil and finally forming a chain structure; in this way, high-speed reciprocating interweaving is repeated until a continuous chain is formed on the bottom layer of the fiber net, and the surface layer presents a velvety yarn-free non-woven fabric after stitching, which is then tensioned and output under the rear beam, solving the vertical sewing and weaving manufacturing technical problems of yarn-free stitching textiles, with a compact structure and efficient stitching.

[0021] 6. The vertical sewing mechanism of the present invention has the advantages of compact structure, small equipment vibration, small fabric transmission resistance, economy, practicality and high production efficiency compared with the horizontal sewing mechanism.

[0022] 7. The present invention only requires high-density, high-speed, vertical reciprocating hook, curved needle, and loop stitching actions within a small size range to form a dense chain structure. Compared with horizontal stitching equipment, it first realizes yarn-free stitching; secondly, it realizes efficient stitching, and production efficiency is significantly improved.

[0023] 8. The vertical sewing mechanism of the present invention is not prone to broken needle quality defects and wrinkle defects, the production quality of sewn non-woven fabrics is reliable and stable, the floating range of sewing action is small, the average weaving speed is significantly improved, and production is efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is an enlarged detailed structural schematic diagram of the clamping fiber web feeding device and the upright fiber web type yarn-free stitching mechanism in the cylinder lifting state of the present invention.

[0025] Figure 2 It is a front view of the stitch-bonding machine of the present invention.

[0026] Figure 3 The figure is a schematic diagram of the speed control principle of the upper and lower servo motors of the present invention.

[0027] Figure 4 It is a schematic diagram of the sinker structure in the sinker assembly. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-4 Specific embodiments of the present invention are described.

[0029] In the present invention, regarding the description of the nouns of the orientation, it should be noted that the left side should be understood as the orientation of the feeding end, and the right side should be understood as the orientation of the discharging end. Specific orientation descriptions such as left and right are only simplified descriptions for the convenience of describing and understanding the present invention, and should not be regarded as limitations on the absolute orientation of the technical solution.

[0030] The utility model discloses a vertical fiber web type yarn-free stitching machine with a clamping feeding device, which has a vertical machine table 10.

[0031] The vertical machine 10 occupies a small area and has a compact structure, and is mainly a box-type support structure.

[0032] The vertical machine 10 is as follows Figure 2The left front end in the direction shown, i.e., the upper end surface of the feeding end of the fiber web 8, supports the installation of a clamping fiber web feeding device; the clamping fiber web feeding device is adjusted by the cylinder lifting and lowering of the front feeding angle. At the same time, the cylinder is used to solve the technical problem that when the front end of the clamping fiber web feeding device is in the maintenance state, the rear upright fiber web type yarnless stitching mechanism is completely retained for maintenance operations.

[0033] (like Figure 2 The clamping fiber web feeding device includes an upper clamping feeding device 13 and a lower clamping feeding device 14 which can adjust the speed, clamping distance and feeding angle respectively.

[0034] The speed regulating function of the upper clamping feeding device 13 and the lower clamping feeding device 14 is used to solve the problems of accumulation and wrinkles of the stitching feeding material.

[0035] The spacing adjustment function of the upper clamping and feeding device 13 and the lower clamping and feeding device 14 is used to solve the clamping adaptability adjustment problem of stitch-bonded products of different thicknesses.

[0036] The adjustment function of the feeding angle of the clamping ends of the upper clamping feeding device 13 and the lower clamping feeding device 14 is used to solve the problem of adjusting the size of the stitching loops of different types of stitching products and the problem of adaptability adjustment of the production speed.

[0037] To solve the above technical problems: Step 1: The angle formed between the upper clamping and feeding device 13 and the lower clamping and feeding device 14 is used to clamp and feed the material at an angle of 30° to 60° toward the rear side.

[0038] In the above embodiment, further: the upper clamping feeding device 13 includes an upper active roller 13-1, an upper driven roller 13-2, an upper conveying leather curtain and an upper servo motor, which are located above the feeding frame 18 and are supported and installed downward from the left side to the right side.

[0039] Among them, the upper active roller 13-1 is installed on the upper left side of the feeding frame 18, and the upper active roller 13-1 is installed on the lower right side of the feeding frame 18. The upper active rollers 13-1 and 13-1 are connected by a downward inclined transmission leather curtain, and the servo motor is coaxially installed on the shaft end of the upper active roller 13-1.

[0040] The lower clamping feeding device 14 includes a lower active roller 14-1, a lower driven roller 14-2, a lower conveying leather curtain and a lower servo motor, which are located below the feeding frame 18 and are supported and installed downward from the left feeding end to the right discharging end.

[0041] Among them, the lower active roller 14-1 is horizontally supported and installed at the feeding end on the lower left side of the feeding frame 18, and the lower driven roller 14-2 is horizontally supported and installed at the discharging end on the lower right side of the feeding frame 18. The lower active roller 14-1 and the lower driven roller 14-2 are connected by a downwardly inclined lower conveying leather curtain, and the lower servo motor is coaxially installed on the shaft end of the lower active roller 14-1.

[0042] The upper and lower servo motors drive the upper and lower active rollers to rotate respectively; the upper and lower servo motors are connected to a speed regulating system; the speed regulating system comprises a power supply, a switch, a servo driver and a speed regulator.

[0043] (like Figure 3 As shown in FIG. 1 ), the speed control system includes a power supply, a switch, two servo drives and two speed regulators; Figure 3 The wiring diagram for connecting the upper and lower servo motors to the above components and the speed control principle diagram are shown.

[0044] The power supply is connected in parallel to the upper and lower servo motors; the speed regulator and the servo driver are connected in series to the parallel power supply circuits of the upper and lower servo motors, respectively. The two speed regulators and the servo driver are used to control and adjust the speed of the two servo motors separately. The servo drivers are used to drive the operation of the corresponding servo motors.

[0045] In the above embodiment, further: the upper clamping feeding device 13 is tilted and conveyed from the left side feeding end to the right side discharging end toward the lower right side; the lower clamping feeding device 14 is located below the upper clamping feeding device 13 and is tilted and conveyed from the left side feeding end to the right side discharging end toward the lower right side.

[0046] The left feeding ends of the upper clamping feeding device 13 and the lower clamping feeding device 14 are open ends, and the right discharging ends are clamping closing ends.

[0047] The final clamping feeding angle formed by the conveying ends of the right side closing ends of the upper clamping feeding device 13 and the lower clamping feeding device 14 is 30° to 60°, including 30°, 35°, 40°, 45°, 50°, and 60°.

[0048] This angle is used to adjust the final feeding angle according to the thickness of different types of non-woven fabrics and the size of the weaving loop. Among them, 45° is the best, most economical and most efficient feeding production angle.

[0049] Step 2: To solve the angle adjustment problem of the clamping type web feeding device: the upper clamping feeding device 13 and the lower clamping feeding device 14 are connected to the feeding frame 18 as a whole.

[0050] The bottom end of the feeding end of the feeding frame 18 is hingedly connected to the end of the piston rod of the cylinder 15.

[0051] The feeding end of the feeding frame 18 is hingedly connected to the top end of the vertical support frame 17 of the vertical machine platform 10 and rotates around the hinge point to adjust the inclination angle of the feeding end.

[0052] The cylinder 15 is located below the front end of the lower clamping feeding device 14 and is supported and installed upward from the left feeding end to the right discharging end.

[0053] The bottom end of the cylinder 15 is hingedly connected to the upper end surface of the vertical machine platform 10.

[0054] The piston rod of the cylinder 15 that is tilted and telescopic toward the upper right discharge end is used to push or pull to adjust the tilt angle of the feeding end of the feeding frame 18, thereby adjusting the final clamping feeding inclination angle formed by the transmission ends of the upper clamping feeding device 13 and the lower clamping feeding device 14.

[0055] (like Figure 1 As shown) Step 3: In the above embodiment, in order to solve the technical problem of adjusting the spacing between the upper clamping feeding device 13 and the lower clamping feeding device 14: the clamping fiber web feeding device includes a feeding frame 18; a vertically inclined first strip hole 18-1 is formed above the feeding end of the feeding frame 18; a transversely inclined second strip hole 18-2 is formed below the feeding end of the feeding frame 18; the first strip hole 18-1 and the second strip hole 18-2 are perpendicular to each other.

[0056] The side plates of the first strip hole 18-1 are respectively fastened and supported by fastening bolt assemblies to install the bearing seat and the bearing assembly through parallel strip grooves symmetrical with the left and right axes.

[0057] The bearings of the bearing seat bearing assembly are respectively used to support the rotation installation of the drive roller of the upper clamping and feeding device 13. By disassembling the fastening bolt assembly, the position of the bearing seat and the bearing assembly relative to the first strip hole 18-1 is moved, and then used to adjust the installation height of the drive roller of the upper clamping and feeding device 13.

[0058] Similarly, the side plate of the second strip hole 18-2 is respectively fastened and supported by the bearing seat and the bearing assembly through the parallel strip grooves symmetrical to the left and right axes using the fastening bolt assembly; the bearing of the bearing seat bearing assembly is used to support the rotation installation of the transmission roller of the lower clamping and feeding device 14. By disassembling the fastening bolt assembly, the position of the bearing seat and the bearing assembly relative to the second strip hole 18-2 is moved, and then used to adjust the height of the transmission roller of the lower clamping and feeding device 14. Finally, the clamping spacing between the upper clamping and feeding device 13 and the lower clamping and feeding device 14 is adjusted. Therefore, non-woven fabrics of different thicknesses can be produced adaptively.

[0059] The discharge end of the clamping fiber web feeding device is provided with an upright fiber web type yarn-free sewing mechanism. All the upright fiber web type yarn-free sewing mechanisms are installed upright, and the sewing action is a yarn-free sewing action, and a woven buckle is formed for the self-contained fibers of the fiber web, and finally a woven chain is formed.

[0060] The vertical fiber web type yarn-free stitching mechanism comprises a vertical groove needle assembly 1 and a curved needle assembly 2 which are arranged below the fiber web 8 and are used to repeatedly hook the fibers.

[0061] The groove needle assembly 1 and the curved needle assembly 2 move up and down in a high-speed reciprocating linear motion, wherein the groove needle is used to hook the fiber, and the curved needle is used to pick the fiber.

[0062] In the above embodiment, further: a groove needle for hooking fibers is fixedly installed at the end of the groove needle assembly 1 and reciprocates vertically upward, and the groove needle is a vertical comb tooth structure; the top end of the groove needle has a hook head structure for conveniently hooking fibers.

[0063] The top needle hook structure of the groove needle is used to abut the lower middle part of the sinker body in the sinker assembly 3 when not knitted.

[0064] The bottom end of the groove needle body is fixedly connected to the vertically arranged groove needle bed 1-1 as a whole.

[0065] The groove needle bed 1-1 is a vertical inclined panel structure, the top left side is a vertical surface, and the vertical surface is used to vertically fix and support the installation of the groove needle; the top right side is an inclined surface inclined toward the lower right, and the inclined surface is used to avoid and provide sufficient space for the installation of the sinker assembly 3.

[0066] The middle part of the back side of the inclined surface of the groove needle bed 1-1 is fixedly connected to the top of the groove needle bed bracket 1-2 of the vertical supporting structure using a fastening assembly; thereby realizing the clockwise swinging movement function of the top groove needle of the groove needle bed 1-1 relative to the top of the groove needle bed bracket 1-2.

[0067] The bottom end of the groove needle bed support 1-2 is welded or fastened to the top end of the vertical reciprocating drive shaft A1-4 as a whole. The drive shaft A1-4 is pushed by the drive arm to reciprocate at high speed.

[0068] The drive shaft A1-4 is installed by coaxial guide adapter support of the sleeve A1-3 to achieve linear guide reciprocating displacement of the drive shaft A1-4. The outer side of the sleeve A1-3 is fastened and fixedly connected to the vertical machine 10 as a whole.

[0069] In the above embodiment, further: the end of the bending needle assembly 2 is tilted to fix the support and install the bending needle. The end of the bending needle has an obtuse-angled comb tooth structure; the obtuse-angled bending portion of the bending needle is tilted upward, and the end of the bending needle is arranged toward and close to the middle of the groove needle body in the groove needle assembly 1. The obtuse-angle bending angle of the bending needle is 135 to 160 degrees. The bending needle is tilted upward toward the right discharge end.

[0070] The looper is supported and installed by an inclined looper bed 2-1. The upper end of the looper bed 2-1 is an inclined support surface inclined upward to the right, and the angle of inclination between the inclined support surface and the horizontal plane is 52°. The lower end of the looper bed 2-1 has a vertical portion. The back side of the vertical portion of the looper bed 2-1, i.e., the middle right side, is fixedly connected to the top of the looper bed bracket 2-2 of the vertical plate structure.

[0071] The bottom end of the curved needle bed support 2-2 is fixedly connected to the top end of the vertical reciprocating drive shaft B2-4; the drive shaft B2-4 is pushed by the drive arm to reciprocate at high speed. Any drive arm mechanism that can achieve high-speed reciprocating motion is suitable for this case.

[0072] The drive shaft B2-4 is supported by a coaxial guide adapter of the sleeve B2-3, and moves back and forth in a linear guide; the outer side of the sleeve B2-3 is fastened to the vertical machine 10 as a whole.

[0073] It should be noted that the drive shafts A1-4 and B2-4 are arranged in a row and multiple pairs on the same plane. The longer the device, the more pairs there are, and the shorter the device, the fewer pairs there are. Any high-speed reciprocating linear motion mechanism or driving mechanism that can achieve high-speed reciprocating linear motion of the drive shafts A and B is applicable to this case. Since the above mechanism is not an innovation of this case, the specific implementation method will not be described in detail.

[0074] A vertical pad net comb assembly 4 installed above the fiber web 8 is provided directly above the groove needle assembly 1, the bending needle assembly 2 and the sinker assembly 3.

[0075] The web-stack comb assembly 4 is used to pad the fiber web 8 downward into the slot of the slot needle assembly 1. When the slot needle of the slot needle assembly 1 moves downward, the needle hook on the slot needle directly hooks the fiber bundle from the fiber web 8 along the length direction as the stitching yarn to form an old coil, and the bending needle assembly 2 moves upward, and the bending needle tip is inserted into the aforementioned old coil to perform the yarn bending action. The synergistic effect is to press down the interlaced stitching.

[0076] In the above embodiment, further: the end of the pad net combing piece assembly 4 has a pad net combing piece; the lower end of the pad net combing piece has an arc-shaped surface combing tooth structure. The arc-shaped structure facilitates pressing the fiber net 8 into the groove of the groove needle.

[0077] The arc-shaped comb teeth at the lower end of the pad net comb are located directly above the sinker of the sinker assembly 3 provided in the gap between the groove needle of the groove needle assembly 1 and the bending needle of the bending needle assembly 2, and are tangent to the upper end surface of the sinker. In the natural non-working state, the upper end surface of the sinker of the sinker assembly 3 fits the lower end surface of the fiber web 8.

[0078] The right rear side of the vertical portion of the upper end of the pad net comb piece is fastened and fixedly installed on the lower end of the pad net comb piece needle bed 4-1 facing vertically downward.

[0079] The pad net comb needle bed 4-1 is a vertical plate structure, and the upper end of the pad net comb needle bed 4-1 is fixedly connected to the lower end of the support arm on the left side of the vertical plate, and the support arm is vertically arranged and rotates synchronously with the support shaft 4-2; the support shaft 4-2 is perpendicular to the vertical plane and is connected to the vertical machine 10 for rotation, and the support shaft 4-2 drives the support arm to swing, and then drives the pad net comb needle bed 4-1 and the pad net comb at the end of the support arm to swing at a certain angle through the support arm, and the support arm, the pad net comb needle bed 4-1 and the pad net comb are naturally arranged vertically downward in a non-working state.

[0080] A vertical fixed rear beam assembly 5 is provided at the same level and rearward of the mat mesh comb assembly 4 .

[0081] In the above embodiment, further: the rear beam assembly 5 has a rear beam. The rear beam is horizontally arranged and is a guide structure with a smooth surface.

[0082] The rear beam is located directly behind the pad net comb in the pad net comb assembly 4 and is arranged parallel to the running direction along the running direction of the stitched non-woven fabric 9. The rear beam assembly 5 is located directly behind the discharge end of the groove needle assembly 1, the curved needle assembly 2, the sinker assembly 3, and the pad net comb assembly 4.

[0083] The top right rear side of the rear beam is fixed to the lower end of the rear beam plate seat 5-1 of the vertical plate structure.

[0084] The upper end of the rear beam plate seat 5 - 1 is vertically fixedly connected to the lower horizontal end surface of the top of the vertical machine platform 10 as a whole.

[0085] (Combined with Figure 2 ) A cloth guide roller 11 is provided in the horizontal transmission direction at the same height as the rear beam and away from the rear beam. The cloth guide roller 11 is used to receive the woven non-woven fabric transmitted by the rear beam under downward pressure.

[0086] A tension roller 12 is provided in the horizontal direction below the cloth guide roller 11; the tension roller 12 is used for reversing and guiding the tensioning and transmission of the woven non-woven fabric.

[0087] Furthermore, the surfaces of the cloth guide roller 11 and the tension roller 12 are of a textured structure to increase friction and prevent slipping.

[0088] The stitched nonwoven fabric 9 is led out from the lower side of the rear beam in a horizontal direction away from the rear beam through a fabric guide roller 11 and a tension roller 12 and then rolled up into a roll.

[0089] (like Figure 1 A sinker assembly 3 is also provided below the fiber web 8, and the groove needles of the groove needle assembly 1 cross each other during stitching. The sinker assembly 3 is used to cross the groove needle assembly 1 that moves vertically in an axial direction, and to hook the fiber loop in combination with the bending assembly 2 that moves vertically in an axial direction to achieve stitching.

[0090] In the above embodiment, further: the sinker assembly 3 has a sinker. The sinker is a rake claw structure, and a needle groove 301 (such as Figure 4 As shown), the groove needles of the groove needle assembly 1 pass through the needle groove 301 at the top of the sinker claw of the sinker assembly 3 and are inserted into the upper fiber mesh 8 to hook the fibers and block the old coils above so that the groove needles of the groove needle assembly 1 can move upward again to hook new fibers for weaving.

[0091] The bending direction of the rake claws of the sinker is opposite to the bending direction of the bending needles in the bending needle assembly 2, so as to cooperate with the bending needles to form a braided intertwined structure.

[0092] The highest bending point of the rake claw of the sinker in the sinker assembly 3 is just tangent to the lowest point of the lower end of the mat net comb in the mat net comb assembly 4. So that the sinker and the mat net comb can be interlaced and woven with the groove needles that continuously move back and forth, thereby continuously forming multiple new link interweaving points.

[0093] The bottom end of the sinker is fixed to one side of the top of the vertically arranged sinker needle bed 3-1, and the sinker body extension arm is arranged obliquely from left to right toward the lower right. A vertical structure is arranged at the lower right inclined end, and the vertical structure is fastened and fixedly connected to the vertical structure on the left side of the top of the sinker needle bed 3-1 as a whole.

[0094] The bottom end of the sinker needle bed 3-1 is fixedly connected to the top of the vertical bracket 3-2, and the bottom end of the vertical bracket 3-2 is vertically fastened and supported and fixedly connected to the upper end surface of the vertical machine table 10 as a whole.

[0095] In the above embodiment, further: in order to provide stable feeding guidance and adopt the best feeding angle: a baffle guide assembly is provided between the clamping fiber web feeding device and the upright fiber web type yarn-free stitching mechanism before entering the stitching area.

[0096] The baffle guide assembly comprises an upper baffle 6 and a lower baffle 7. The upper baffle 6 and the lower baffle 7 are sheet metal parts with surface polishing.

[0097] The guide ends of the upper baffle plate 6 and the right side of the lower baffle plate 7 form a guide angle, and the guide angle is inclined obliquely downward, and the inclination angle of the guide angle is 45°.

[0098] At the same time, the guiding end of the guiding angle is arranged directly opposite to the feeding end of the upright fiber net type yarn-free stitching mechanism.

[0099] Specifically, the upper baffle plate 6 is tilted from left to right and toward the lower right, and the vertical end surface of the upper left end of the upper baffle plate 6 is supported and installed by an upper baffle plate bracket 6 - 1 .

[0100] The upper baffle bracket 6 - 1 is fixedly installed horizontally perpendicular to the direction of the vertical support arm below the support shaft 4 - 2 ; the left vertical end face of the upper baffle bracket 6 - 1 is fixedly connected to the upper vertical part of the upper baffle 6 .

[0101] The lower baffle 7 is inclined from left to right toward the upper right side, and the upper rightmost inclined end is provided with a guide tongue; the guide tongue and the guide tongue at the lower end of the upper baffle 6 form a final feeding guide angle, that is, a 45° feeding guide angle, so as to guide the feeding material toward the lower right side. Combined with the inclined direction of the upper and lower baffles, the large opening end on the left side and the closing end on the right side play the function of closing and flattening the multi-layer fiber web 8.

[0102] The middle part of the lower baffle is supported and installed by a lower baffle bracket 7-1; the bottom end of the lower baffle bracket 7-1 is vertically fixedly connected to the upper end surface of the vertical machine 10 as a whole.

[0103] The working principle of the present invention is as follows: when a fiber web 8 with a certain thickness is fed into the stitching area at an angle of 30° to 60° through a clamping fiber web feeding device and then guided by upper and lower baffles at an angle of 45° from top to bottom, the groove needle assembly 1 and the bending needle assembly 2 make up and down reciprocating motions. The groove needle moves upward through the needle groove 301 in the sinker assembly 3 and then inserts into the fiber web 8. The upper pad net comb assembly 4 pads the fiber web 8 into the groove needle groove of the groove needle assembly 1. When the groove needle of the groove needle assembly 1 moves downward, the needle hook on the groove needle directly hooks the fiber bundle from the fiber web 8 along the length direction as the stitching yarn to form an old coil. The bending needle assembly 2 moves upward, and the bending needle tip is inserted into the aforementioned old coil to perform the yarn bending action: the upper old coil is blocked by the sinker of the sinker assembly 3, and the groove needle assembly 1 The groove needle moves upward again to hook the fiber. At the same time, the bend needle of the bend needle assembly 2 is also located in the old coil. The old coil is moved from the groove needle hook of the groove needle assembly 1 to the bend needle tip of the bend needle assembly 2. When the groove needle hooks the fiber and moves downward again, the old coil is just located on the bend needle to complete the looping action; and the sinker of the sinker assembly 3 is used to prevent the groove needle hook of the groove needle assembly 1 from hooking the old coil, so that the new fiber bundle hooked by the groove needle passes through the old coil to form a new coil smoothly, thus completing a yarn bending, looping and looping action. Such repeated weaving forms a continuous braided chain structure on the bottom layer of the fiber mesh 8, and the surface layer presents a velvety yarn-free stitched non-woven fabric 9. The woven yarn-free stitched non-woven fabric 9 is horizontally pulled out of the stitching area by the back beam of the back beam assembly 5 and transported until it is rolled.

[0104] It can be found from the above description that the clamping feeding of the present invention can compress and stack the fiber web before stitching so as to increase the density of stitching.

[0105] The present invention adjusts the speed difference between the upper servo motor and the lower servo motor through the speed regulator, and adjusts the movement speed of the upper and lower conveying leather curtains. For example, the speed of the upper servo motor is adjusted to be greater than the speed of the lower servo motor, so as to achieve different thickness layers of fiber webs. It is always possible to ensure that the uppermost fiber web and the lowermost fiber web can be fed into the sewing area synchronously when they are tilted and fed, thereby preventing the occurrence of wrinkle quality defects, improving the sewing quality, and stabilizing the production quality.

[0106] The present invention adjusts the gaps between the upper clamping and feeding device and the lower clamping and feeding device's clamping end transmission rollers through the first strip hole and the second strip hole respectively, thereby adjusting the clamping spacing, realizing the clamping, transmission and conveying of fiber webs of different thicknesses, and solving the problem of adaptive adjustment in the production of stitched non-woven fabric products of different thicknesses.

[0107] The cylinder of the present invention is used for overall lifting and adjusting the feeding angle on the one hand, and for lifting the feeding mechanism when the equipment is shut down for maintenance on the other hand, so as to fully expose the sewing mechanism and facilitate maintenance of the sewing mechanism; the technical problems of optimal feeding angle adjustment and convenient maintenance of sewing equipment are solved.

[0108] The present invention uses the crossed and coordinated reciprocating motions of the groove needle for hooking the wire and the curved needle for picking up the wire to respectively hook the wire and pick up the wire, and pad the fiber net into the groove needle groove through the padding net comb; the blocking effect of the sinker on the old coil is to allow the groove needle to move upward again to hook new fibers; and the sinker prevents the groove needle hook from hooking the old coil, thereby smoothly passing the new fiber bundle hooked by the groove needle through the old coil to form a new coil and finally forming a chain structure; a continuous chain structure is formed on the bottom layer of the fiber net, and the surface layer presents a velvety yarn-free sewing non-woven fabric, and the sewing non-woven fabric is finally output through the guided tensioning under the rear beam, thereby solving the vertical sewing and weaving manufacturing technical problems of yarn-free sewing textiles, and has a compact structure and efficient sewing.

[0109] The vertical sewing mechanism of the present invention has the advantages of compact structure, small equipment vibration, small resistance to fabric transmission movement, economy, practicality and high production efficiency compared with the horizontal sewing mechanism.

[0110] The present invention only requires high-density, high-speed, vertical reciprocating crochet, curved needle, and loop stitching actions within a small size range. With the help of the irregular fiber structure of the fiber web itself, a dense chain stitching structure can be formed. Compared with horizontal stitching equipment, it firstly realizes yarn-free stitching; secondly, it realizes efficient stitching, and the production efficiency is significantly improved.

[0111] The vertical stitching mechanism of the present invention is not prone to needle breakage quality defects and wrinkle defects, the production quality of the stitched non-woven fabric is reliable and stable, the average weaving speed of the stitching machine is significantly improved, and the production is highly efficient.

[0112] In summary, the present invention overcomes the technical problems of the prior art horizontal stitching equipment, such as large stitching resistance, low stitching efficiency, serious stitching quality defects, and serious equipment vibration. It has the advantages of economic, practical, compact, efficient, stable, and high-quality production; the yarn-free stitched nonwoven fabric produced is mainly used in the fields of automotive interior, industrial filtration, household fabrics, medical and health care, and environmentally friendly packaging.

[0113] It should be understood that although the present specification is described according to one implementation mode, the implementation mode does not include only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in this embodiment can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0114] The above preferred embodiments are not intended to limit the scope of implementation of the present invention, so all equivalent changes made to the contents described in the claims of the present invention should be included in the scope of the claims of the present invention; the components and materials used in the above embodiments are commercially available unless otherwise specified.

Claims

1. A vertical web-type yarnless stitching machine with a clamping feeding device, characterized in that: A vertical machine (10) is provided; a clamping fiber web feeding device is installed at the fiber web (8) feeding end of the vertical machine (10); the clamping fiber web feeding device comprises an upper clamping feeding device (13) and a lower clamping feeding device (14) which can respectively adjust the speed, clamping spacing and feeding angle; a vertical fiber web type yarnless sewing mechanism is provided at the discharge end of the clamping fiber web feeding device; the vertical fiber web type yarnless sewing mechanism comprises a vertical fiber web (8) A groove needle assembly (1) and a curved needle assembly (2) are provided below the fiber web (8) and are used to repeatedly hook the fibers. A sinker assembly (3) is provided below the fiber web (8) and is intersected with the groove needle assembly (1). A vertical pad net comb assembly (4) is provided directly above the groove needle assembly (1), the curved needle assembly (2) and the sinker assembly (3) and is installed above the fiber web (8). A vertical fixed rear beam assembly (5) is provided at the same level as the pad net comb assembly (4). The upper clamping and feeding device (13) comprises an upper active roller (13-1), an upper driven roller (13-2), an upper conveying leather curtain and an upper servo motor; the lower clamping and feeding device (14) comprises a lower active roller (14-1), a lower driven roller (14-2), a lower conveying leather curtain and a lower servo motor; the upper and lower servo motors respectively drive the upper and lower active rollers to rotate; the upper and lower servo motors are connected to a speed control system; the speed control system comprises a power supply, a switch, a servo driver and a speed regulator; The upper clamping and feeding device (13) is tilted and conveyed obliquely downward; the lower clamping and feeding device (14) is tilted and conveyed obliquely downward; the final clamping and feeding inclination angle formed by the conveying ends of the upper clamping and feeding device (13) and the lower clamping and feeding device (14) is 30° to 60°; the upper clamping and feeding device (13) and the lower clamping and feeding device (14) are connected to the feeding frame (18) as a whole; the bottom end of the frame body of the feeding end of the feeding frame (18) is hingedly connected to the actuator end of the piston rod of the cylinder (15); the cylinder (15) is located below the front end of the conveying end of the lower clamping and feeding device (14) and is supported and installed obliquely upward; the cylinder (15) is used to adjust the final clamping and feeding inclination angle formed by the conveying ends of the upper clamping and feeding device (13) and the lower clamping and feeding device (14); The clamping fiber web feeding device comprises a feeding frame (18); a first strip hole (18-1) inclined vertically is formed above the feeding end of the feeding frame (18); a second strip hole (18-2) inclined horizontally is formed below the feeding end of the feeding frame (18); the first strip hole (18-1) and the second strip hole (18-2) are perpendicular to each other; the first strip hole (18-1) is used to adjust the height of the driving roller of the upper clamping feeding device (13); and the second strip hole (18-2) is used to adjust the height of the driving roller of the lower clamping feeding device (14); A baffle guide assembly is provided between the clamping fiber web feeding device and the upright fiber web type yarn-free stitching mechanism; the baffle guide assembly comprises an upper baffle (6) and a lower baffle (7); the guide ends of the upper baffle (6) and the lower baffle (7) form a guide angle, the guide angle is inclined obliquely downward, and the inclination of the guide angle is 45°; the guide end of the guide angle is arranged directly opposite to the feeding end of the upright fiber web type yarn-free stitching mechanism; The end of the pad net combing piece assembly (4) has a pad net combing piece; the lower end of the pad net combing piece has an arc-shaped combing tooth structure; the arc-shaped combing teeth at the lower end of the pad net combing piece are arranged directly above the sinker of the sinker assembly (3) provided in the gap between the groove needle of the groove needle assembly (1) and the bending needle of the bending needle assembly (2); the pad net combing piece is fixed to the lower end of the pad net combing piece needle bed (4-1) facing vertically downward; the upper end of the pad net combing piece needle bed (4-1) is fixedly connected to the lower end of the support shaft (4-2) installed downward on the vertical machine table (10); The sinker assembly (3) comprises a sinker, the sinker being a rake claw structure, the top of the rake claw structure being provided with a needle groove (301), the groove needle of the groove needle assembly (1) passing through the needle groove (301) and then inserted into the upper fiber net (8) to hook the fiber; the rake claw of the sinker is bent in a direction opposite to the bending direction of the bending needle in the bending needle assembly (2), and the highest bending point of the rake claw of the sinker is just tangent to the lowest point of the lower end of the pad net comb in the pad net comb assembly (4); the bottom end of the sinker is fixed to one side of the top end of a vertically arranged sinker needle bed (3-1), and the bottom end of the sinker needle bed (3-1) is fixedly connected to the top of a vertical bracket (3-2) on the upper end surface of the vertical machine table (10).

2. The vertical web-type yarnless stitching machine with a clamping feeding device according to claim 1, characterized in that: A groove needle for hooking fibers that reciprocates vertically upward is fixedly installed at the end of the groove needle assembly (1), and the groove needle is a vertical comb tooth structure; the top needle head of the groove needle abuts the lower middle part of the sinker body in the sinker assembly (3); the bottom end of the groove needle body is integrally connected to a vertically arranged groove needle bed (1-1); the middle part of the back of the groove needle bed (1-1) is fixedly connected to the top of the groove needle bed bracket (1-2); the bottom end of the groove needle bed bracket (1-2) is integrally connected to the top of a vertically reciprocating drive shaft A (1-4); the drive shaft A (1-4) is coaxially guided and adapted for support by a shaft sleeve A (1-3); the outer side of the shaft sleeve A (1-3) is integrally connected to the vertical machine table (10).

3. The vertical web-type yarnless stitching machine with a clamping feeding device according to claim 1, characterized in that: The end of the bending needle assembly (2) is supported and installed by an inclined fixed support; the end of the bending needle has an obtuse-angled comb tooth structure; the obtuse-angled bending portion of the bending needle is inclined upward, and the end of the bending needle is arranged toward and close to the middle of the groove needle body in the groove needle assembly (1); the bending needle is supported and installed by an inclined bending needle bed (2-1); the middle of the back side of the vertical portion of the bending needle bed (2-1) is fixedly connected to the top of the bending needle bed bracket (2-2); the bottom end of the bending needle bed bracket (2-2) is fixedly connected to the top of the vertical reciprocating driving shaft B (2-4) as a whole; the driving shaft B (2-4) is supported by the coaxial guide adapter of the shaft sleeve B; the outer side of the shaft sleeve B (2-3) is fixedly connected to the vertical machine (10) as a whole.

4. The vertical web-type yarnless stitching machine with a clamping feeding device according to claim 1, characterized in that: The rear beam assembly (5) comprises a rear beam; the rear beam is arranged horizontally and is a guide structure with a smooth surface; the rear beam is located directly behind the pad net comb in the pad net comb assembly (4) and is arranged along the running direction of the stitched non-woven fabric (9); the rear top end of the rear beam is fixed to the lower end of the rear beam plate seat (5-1) of the vertical structure; the upper end of the rear beam plate seat (5-1) is fixed to the lower side of the top of the vertical machine (10); a cloth guide roller (11) is arranged in a horizontal direction away from the rear beam and in the transmission direction of the rear beam; a tension roller (12) is arranged in a horizontal direction below the cloth guide roller (11); the stitched non-woven fabric (9) is guided out from the lower horizontal direction of the rear beam away from the rear beam through the cloth guide roller (11) and the tension roller (12) and then rolled up; the surfaces of the cloth guide roller (11) and the tension roller (12) are of a hemp surface structure.

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