Tufting mechanism of artificial turf tufting machine

Abstract

The utility model discloses a tufting mechanism of an artificial turf tufting machine, which comprises a cloth dragging fork fixed on a bedplate on the tufting machine and used for supporting base cloth; the double-row tufting needle assembly is connected with a first driving part on the tufting machine and is used for driving the double-row tufting needle assembly to move downwards to drive grass threads on the double-row tufting needle assembly to penetrate through the fork notches in the cloth dragging fork and the base cloth; the double-row tufting hook assembly is connected with a second driving part on the tufting machine and is used for driving the double-row tufting hook assembly to move horizontally so as to hook the grass yarns below the base cloth; and the double-row tufting cutter assembly is connected with a third driving part on the tufting machine and is used for driving the double-row tufting cutter assembly to move upwards so as to be matched with the double-row tufting hook assembly to cut off the grass filaments. The tufting needles, the tufting hooks and the tufting cutters adopted by the tufting mechanism are all of a double-row structure, high-density artificial turf or high-low artificial turf can be produced only through one-time tufting, the grass yarn tufting efficiency and quality are greatly improved, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of artificial turf tufting machines, in particular to a tufting mechanism of an artificial turf tufting machine. Background Art

[0002] Artificial turf tufting machine, such as CN206245043U-a tufting machine, is developed from a carpet tufting machine. After years of development, the matching tufting needles, tufting hooks, and tufting knives are very mature and perfect in terms of materials and design.

[0003] Because the weight of artificial turf is much greater than that of carpet fiber, the overall strength requirement of tufting mechanism is significantly increased, so the tufting row spacing is relatively large, which is used to install thicker tufting needles and tufting knives. At present, high-density artificial turf or high-low turf can only be achieved through secondary tufting because the tufting needles, tufting hooks and tufting knives are all single-row structures, which is labor-intensive and the carpet surface quality is not good.

[0004] Therefore, how to provide a tufting mechanism of a tufting machine that can process high-density artificial turf or high-low artificial turf through one tufting, thereby improving production efficiency and quality and reducing production costs is a problem that technical personnel in this field urgently need to solve. Utility Model Content

[0005] In view of this, the utility model provides a tufting mechanism of a tufting machine which can process high-density artificial turf or high-low artificial turf by tufting once, thereby improving production efficiency and quality and reducing production costs.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A tufting mechanism of an artificial turf tufting machine, comprising:

[0008] A mop fork, which is fixed on a table on the tufting machine and is used to support the base fabric;

[0009] A double-row tufting needle assembly, the double-row tufting needle assembly is connected to a first driving part on the tufting machine, and is used to drive the double-row tufting needle assembly to move downward to drive the grass yarns thereon to pass through the fork notch on the mopping fork and through the base fabric;

[0010] A double-row tufting hook assembly, the double-row tufting hook assembly is connected to a second driving part on the tufting machine and is used to drive the double-row tufting hook assembly to move horizontally to hook the grass fibers under the base fabric;

[0011] A double-row tufting knife assembly is connected to a third driving part on the tufting machine and is used to drive the double-row tufting knife assembly to move upward to cooperate with the double-row tufting hook assembly to cut off the grass fibers.

[0012] Through the above technical scheme, it can be known that compared with the prior art, the utility model discloses a tufting mechanism of an artificial turf tufting machine. During tufting, the base fabric moves at a uniform speed under the drive of two licker-in rollers arranged front and back on the tufting machine. The double-row tufting needle assembly carries two strands of grass silk fibers. The first driving part drives the double-row tufting needle assembly to move downward to pierce the base fabric, and the two strands of grass silk fibers on the double-row tufting needle assembly are respectively implanted into the base fabric. At the same time, the second driving part drives the double-row tufting hook assembly to extend, and the hook part thereon Two strands of grass silk fibers are hooked separately. At the same time, the third driving unit drives the double-row tufting knife assembly to move upward, and cooperates with the double-row tufting hook assembly to cut the hooked grass silk fibers to form pile heads. The grass silk hooking is completed, and the first driving unit drives the double-row tufting needle assembly upward back to its original position, and the second driving unit drives the double-row tufting hook assembly to retreat and return to its original position. The third driving unit drives the double-row tufting knife assembly downward back to its original position, and the above tufting action is completed. The various components of the tufting mechanism cooperate with reciprocating motion to tuft the grass silk fibers on the base fabric.

[0013] Therefore, the tufting needles, tufting hooks and tufting knives used in the tufting mechanism are all double-row structures, and high-density artificial turf or high-low artificial turf can be produced through only one tufting, which greatly improves the grass tufting efficiency and quality and reduces the production cost.

[0014] Furthermore, the double-row tufting needle assembly comprises:

[0015] A needle row seat, the needle row seat is connected to the first driving part;

[0016] A first tufting needle, wherein the first tufting needle is a plurality of needles inserted and fixed on the bottom end surface of the needle row seat and arranged in a row;

[0017] A second tufting needle, wherein the second tufting needle is a plurality of needles inserted and fixed on the bottom end surface of the needle row seat and arranged in a row, and the second tufting needles are arranged in a staggered manner with the first tufting needles;

[0018] The double-row tufting hook assembly comprises:

[0019] A tufting hook seat, wherein the tufting hook seat is connected to the second driving part:

[0020] a first tufting hook, wherein the first tufting hook is a plurality of hooks fixed on the tufting hook seat and arranged in a row, and the hook portion of the first tufting hook corresponds to the needle portion of the first tufting needle;

[0021] A second tufting hook, wherein the second tufting hook is a plurality of hooks fixed on the tufting hook seat and arranged in a row, the hook portion of the second tufting hook corresponds to the needle portion of the second tufting needle, and the second tufting hook is arranged alternately with the first tufting hook;

[0022] The double-row tufting knife assembly comprises:

[0023] A tufting knife seat, wherein the tufting knife seat is connected to the third driving part;

[0024] a first tufting knife, wherein the first tufting knife is a plurality of knives fixed on the tufting knife holder and arranged in a row, and the blade of the first tufting knife corresponds to the blade position of the first tufting hook;

[0025] A second tufting knife, wherein the second tufting knife is a plurality of knives fixed on the tufting knife holder and arranged in a row, and the blade of the second tufting knife corresponds to the blade position of the second tufting hook.

[0026] The beneficial effects of the above technical solution are as follows: during tufting, the first tufting needle and the second tufting needle move downward at the same time to pierce the base fabric, the first tufting hook hooks the grass fibers on the first tufting needle, the first tufting knife cooperates with the first tufting hook to cut the grass fibers on the first tufting needle, the second tufting hook hooks the grass fibers on the second tufting needle, the second tufting knife cooperates with the second tufting hook to cut the grass fibers on the second tufting needle, and then a double-row tufting structure is used for one-time tufting to produce high-density artificial turf. The first tufting needle and the second tufting needle are staggered, so that the number of the first tufting needle or the second tufting needle is increased, thereby further improving the grass tufting density.

[0027] Further, the needle portion of the first tufting needle is at the same height as the needle portion of the second tufting needle, the hook portion of the first tufting hook is at the same height as the hook portion of the second tufting hook, and the blade of the first tufting knife is at the same height as the blade of the second tufting knife;

[0028] or,

[0029] The needle portion of the first tufting needle is lower than the needle portion of the second tufting needle; the hook portion of the first tufting hook is lower than the hook portion of the second tufting hook; and the blade of the first tufting knife is lower than the blade of the second tufting knife.

[0030] The beneficial effect of adopting the above technical solution is that high-density artificial turf with the same height or different heights can be produced through one tufting.

[0031] Furthermore, a plurality of first mounting needle holes arranged in a row and a plurality of second mounting needle holes arranged in a row are provided on the bottom end surface of the needle row seat, the first mounting needle holes and the second mounting needle holes are staggered, the head of the first tufting needle is inserted into the first mounting needle hole, and the head of the second tufting needle is inserted into the second mounting needle hole, and a plurality of first top screws and a plurality of second top screws are respectively screwed on both side surfaces of the needle row seat, the first top screw is in tight contact with the head of the first tufting needle, and the second top screw is in tight contact with the head of the second tufting needle.

[0032] The beneficial effect of the above technical solution is that by loosening the first top screw and the second top screw, the needle part of the first tufting needle and the needle part of the second tufting needle can be adjusted to be at the same height or at different heights, thereby producing lawns of the same height or different heights. In addition, the first top screw and the second top screw also facilitate the rapid disassembly and assembly, later replacement and maintenance of the first tufting needle and the second tufting needle.

[0033] Further, the tufting hook seat is provided with a first through hole penetrating through both ends thereof along its length direction, a plurality of third top screws are screwed along its length direction on the bottom end surface of the tufting hook seat, a plurality of first installation positioning holes and a second installation positioning holes are respectively provided on one side surface of the tufting hook seat, both of which are connected with the first through hole, the first installation positioning holes and the second installation positioning holes are arranged alternately, the tail of the first tufting hook is inserted into the first installation positioning hole, and the tail of the second tufting hook is inserted into the second installation positioning hole;

[0034] The hook parts of the first tufting hook and the second tufting hook are at the same height, a first limiting plate is provided in the first through hole, the top end surface of the first limiting plate is in contact with the bottom end surfaces of the tail parts of the first tufting hook and the second tufting hook, and the third top wire is in tight contact with the bottom end surface of the first limiting plate;

[0035] or,

[0036] The hook portions of the first tufting hook and the second tufting hook are at different heights, a second limiting plate and a third limiting plate are provided in the first through hole, the top end surface of the second limiting plate abuts against the bottom end surface of the tail of the first tufting hook, the third top wire is in tight contact with the bottom end surface of the second limiting plate, and the third limiting plate is clamped between the first tufting hook and the second tufting hook.

[0037] The beneficial effects of adopting the above technical scheme are: the setting of the third top wire facilitates the rapid disassembly, assembly, fixation, and later replacement and maintenance of the first tufting hook and the second tufting hook, and the first limiting plate can limit the first tufting hook and the second tufting hook at the same height, which is convenient for coordinating the first tufting needle and the second tufting needle at the same height to obtain a lawn with grass fibers of the same height; the third limiting plate can adjust the height of the second tufting hook to obtain the first tufting hook and the second tufting hook of different heights, which is convenient for coordinating the first tufting needle and the second tufting needle of different heights to obtain a lawn with grass fibers of different heights.

[0038] Furthermore, a plurality of third mounting positioning holes and a fourth mounting positioning hole, which are all connected to the first through hole, are respectively opened on the other side surface of the tufted hook seat, and the third mounting positioning holes and the fourth mounting positioning holes are arranged alternately. The tail of the first tufted hook passes through the first mounting positioning hole and is inserted into the third mounting positioning hole, and the tail of the second tufted hook passes through the second mounting positioning hole and is inserted into the fourth mounting positioning hole.

[0039] The beneficial effects of adopting the above technical solution are: the tail of the first tufted hook is simultaneously limited and inserted in the first installation positioning hole and the third installation positioning hole, which can improve the stability of the installation of the first tufted hook and avoid shaking of the first tufted hook; the tail of the second tufted hook is simultaneously limited and inserted in the second installation positioning hole and the fourth installation positioning hole, which can improve the stability of the installation of the second tufted hook and avoid shaking of the first tufted hook.

[0040] Further, the tufting knife holder is provided with a second through hole running through both ends thereof along its length direction, a plurality of fourth top screws are screwed along its length direction on one side surface of the tufting knife holder, a plurality of fifth mounting positioning holes and a sixth mounting positioning hole are respectively opened on the top surface of the tufting knife holder, both of which are connected with the second through hole, the fifth mounting positioning holes and the sixth mounting positioning holes are arranged alternately, the tail of the first tufting knife is inserted into the fifth mounting positioning hole, and the tail of the second tufting knife is inserted into the sixth mounting positioning hole;

[0041] A fourth limiting plate and a fifth limiting plate are provided in the second through hole, one side of the fourth limiting plate is in contact with one side of the first tufting knife, the fourth top wire is in tight contact with the other side of the fourth limiting plate, and the fifth limiting plate is clamped between the first tufting knife and the second tufting knife.

[0042] The beneficial effect of adopting the above technical solution is: by loosening the fourth top screw, the blade of the first tufting knife and the blade of the second tufting knife can be adjusted to the same height, or to different heights, so as to cooperate with the first tufting hook and the second tufting hook of the same or different heights to achieve the cutting of grass silks of the same or different heights.

[0043] Furthermore, a plurality of seventh mounting positioning holes and eighth mounting positioning holes, which are connected to the second through hole, are respectively provided on the bottom end surface of the tufting knife holder, and the seventh mounting positioning holes and the eighth mounting positioning holes are arranged alternately. The tail of the first tufting knife passes through the fifth mounting positioning hole and the seventh mounting positioning hole in sequence, and the tail of the second tufting knife passes through the sixth mounting positioning hole and the eighth mounting positioning hole in sequence.

[0044] The beneficial effects of adopting the above technical solution are: the tail of the first tufting knife is simultaneously limited and inserted in the fifth installation positioning hole and the seventh installation positioning hole, which can improve the installation stability of the first tufting knife and avoid the first tufting knife from shaking; the tail of the second tufting knife is simultaneously limited and inserted in the sixth installation positioning hole and the eighth installation positioning hole, which can improve the installation stability of the second tufting knife and avoid the second tufting knife from shaking.

[0045] Further, the spacing Z between two adjacent first tufting needles and the spacing Z between two adjacent second tufting needles are both X, and the spacing Y between adjacent first tufting needles and second tufting needles is less than X / 2.

[0046] The beneficial effect of adopting the above-mentioned technical scheme is that the adjacent first tufting needle and the second tufting needle can be a group and can pass through the same fork slot on the mop fork together, avoiding the problem of increasing the number of fork slots due to the first tufting needle and the second tufting needle needing to pass through two fork slots respectively due to the large spacing (such as the spacing is X / 2), thereby increasing the processing cost of the mop fork.

[0047] Further, the first tufting needle is provided with a first threading hole for threading grass silk near its needle portion, the first tufting needle is provided with a first notch for the hook portion of the first tufting hook to pass through near the first threading hole, the second tufting needle is provided with a second threading hole for threading grass silk near its needle portion, and the second tufting needle is provided with a second notch for the hook portion of the second tufting hook to pass through near the second threading hole;

[0048] The first threading hole and the second threading hole are both elliptical in shape, and their area is not less than 10 mm 2 .

[0049] The beneficial effect of the above technical solution is that the first threading hole and the second threading hole are both elliptical in shape, and their area is not less than 10mm 2 , which makes it convenient to pass through heavy grass silk.

[0050] The preparation method of the artificial turf based on the tufting mechanism consists of the following steps:

[0051] 1) The base fabric moves at a certain speed on the mop fork in the tufting area;

[0052] 2) feeding grass fibers for artificial turf into the first row of tufting needles and the second row of tufting needles, and the first row and the second row of tufting needles repeatedly pierce the moving base fabric;

[0053] 3) As the two rows of tufting needles repeatedly penetrate the base fabric, the grass fibers on the tufting needles are implanted at the same or different depths as the tufting needles pass through the base fabric; when the two rows of tufting needles carry the grass fibers and penetrate the base fabric, the tufting hooks with the corresponding height timely hook the grass fibers on the tufting needles passing through the base fabric, and then with the cooperation of the tufting knife (pile cutting knife), the grass fibers are cut to form piles with the same or different heights, and then two rows of non-overlapping artificial grass are tufted on the base fabric. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0055] Figure 1 The utility model provides a schematic structural diagram of a double-row tufting needle assembly in a tufting mechanism of an artificial turf tufting machine when the assembly does not move downward.

[0056] Figure 2 for Figure 1 Schematic diagram of the enlarged structure of local A in the middle.

[0057] Figure 3 The utility model provides a schematic structural diagram of a double-row tufting needle assembly in a tufting mechanism of an artificial turf tufting machine after it moves downward.

[0058] Figure 4 for Figure 3 Schematic diagram of the main structure.

[0059] Figure 5 for Figure 4 Schematic diagram of the enlarged structure of part B in the middle.

[0060] Figure 6 This is a schematic diagram when the needle parts of the first tufting needle and the second tufting needle are at the same height and have not moved downward.

[0061] Figure 7 This is a schematic diagram of the first tufting needle and the second tufting needle being at the same height and moving downward.

[0062] Figure 8 This is a schematic diagram when the needle parts of the first tufting needle and the second tufting needle are at different heights and have not moved downward.

[0063] Fig. 9 It is a schematic diagram of the first tufting needle and the second tufting needle being at different heights and moving downward.

[0064] Fig.10 It is a schematic diagram of the first top wire on the needle row seat pressing the first tufting needle.

[0065] Fig.11 It is a front side schematic diagram of a double row tufting needle assembly.

[0066] Fig.12 It is a schematic diagram of the rear side of the double-row tufting needle assembly.

[0067] Fig.13 It is a side view schematic diagram when the first tufting needle and the second tufting needle are at different heights.

[0068] Fig.14 It is a front view schematic diagram when the first tufting needle and the second tufting needle are at different heights.

[0069] Fig.15 It is a top view of the needle row seat.

[0070] Fig.16 Schematic diagram of the first tufting needle.

[0071] Fig.17 Schematic diagram of the second tufting needle.

[0072] Fig.18 A schematic diagram of a double-row tufting hook assembly from a first perspective.

[0073] Fig.19 Schematic diagram of a double-row tufting hook assembly from a second perspective.

[0074] Fig. 20 It is a schematic diagram when the first tufting hook and the second tufting hook are at the same height.

[0075] Fig.21 Schematic top view of a double-row tufting hook assembly.

[0076] Fig. 22 It is a schematic diagram when the first tufting hook and the second tufting hook are at different heights.

[0077] Fig.23 It is a three-dimensional schematic diagram of a double-row tufting knife assembly.

[0078] Fig.24 It is a schematic diagram when the first tufting knife and the second tufting knife are at the same height.

[0079] Fig.25 It is a schematic diagram when the first tufting knife and the second tufting knife are at different heights. DETAILED DESCRIPTION

[0080] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0081] The utility model discloses a tufting mechanism of an artificial turf tufting machine, comprising:

[0082] The mop fork 1 is fixed on the table of the tufting machine and is used to support the base fabric to prevent the base fabric from collapsing;

[0083] A double-row tufting needle assembly 2, which is connected to a first driving part of the tufting machine and is used to drive the double-row tufting needle assembly 2 to move downward, driving the grass fibers thereon to pass through the fork notch 11 on the mopping fork 1 and through the base fabric;

[0084] A double-row tufting hook assembly 3, the double-row tufting hook assembly 3 is connected to the second driving part of the tufting machine, and is used to drive the double-row tufting hook assembly 3 to move horizontally to hook the grass fibers under the base fabric;

[0085] The double-row tufting knife assembly 4 is connected to the third driving part of the tufting machine and is used to drive the double-row tufting knife assembly 4 to move upward to cooperate with the double-row tufting hook assembly 3 to cut the grass fibers.

[0086] In a specific embodiment, the double-row tufting needle assembly 2 comprises:

[0087] The needle row seat 21 is connected to the first driving part (the first driving part can be a telescopic cylinder, an electric push rod or a cam driven by a motor, thereby realizing the up and down movement of the needle row seat);

[0088] A first tufting needle 22, which is a plurality of first tufting needles 22 inserted into and fixed on the bottom end surface of the needle row seat 21 and arranged in a row;

[0089] A second tufting needle 23, which is a plurality of second tufting needles 23 inserted and fixed on the bottom end surface of the needle row seat 21 and arranged in a row, and the second tufting needles 23 and the first tufting needles 22 are arranged in a staggered manner;

[0090] A first threading hole 221 for threading grass yarn is provided near the needle portion of the first tufting needle 22, and a first notch 222 for the hook portion of the first tufting hook 32 to pass through is provided near the first threading hole 221 of the first tufting needle 22. A second threading hole 231 for threading grass yarn is provided near the needle portion of the second tufting needle 23, and a second notch 232 for the hook portion of the second tufting hook 33 to pass through is provided near the second threading hole 231 of the second tufting needle 23.

[0091] The first threading hole 221 and the second threading hole 231 are both elliptical in shape, and their areas are not less than 10 mm. 2 , so that heavy grass silk fiber can be worn.

[0092] The appropriate distance between the first tufting needle 22 and the second tufting needle 23 is 10-30 mm, and the preferred distance is 20 mm.

[0093] The spacing Z between two adjacent first tufting needles 22 and the spacing Z between two adjacent second tufting needles 23 are both X, and the spacing Y between the adjacent first tufting needles 22 and the adjacent second tufting needles 23 is less than X / 2.

[0094] The double row tufting hook assembly 3 comprises:

[0095] The tufting hook seat 31 is connected to the second driving part (the second driving part can be a telescopic cylinder, an electric push rod or a cam driven by a motor, thereby realizing the horizontal reciprocating movement of the tufting hook seat):

[0096] A first tufting hook 32, wherein the first tufting hook 32 is fixed on the tufting hook seat 31 and arranged in a row, the hook portion of the first tufting hook 32 corresponds to the needle portion of the first tufting needle 22, and the first tufting hook 32 has a blade made of tungsten steel and has good wear resistance;

[0097] A second tufting hook 33, wherein the second tufting hook 33 is fixed on the tufting hook seat 31 and arranged in a row, the hook portion of the second tufting hook 33 corresponds to the needle portion of the second tufting needle 23, the second tufting hook 33 and the first tufting hook 32 are arranged alternately, and the second tufting hook 33 has a blade, which is made of tungsten steel and has good wear resistance;

[0098] The double-row tufting knife assembly 4 comprises:

[0099] The tufting knife seat 41 is connected to the third driving part (the third driving part can be a telescopic cylinder, an electric push rod or a cam driven by a motor, thereby realizing the up and down movement of the tufting knife seat);

[0100] A first tufting knife 42, wherein the first tufting knife 42 is fixed on the tufting knife holder 41 in a plurality and arranged in a row, and the blade of the first tufting knife 42 (the top of the first tufting knife 42 is the blade) corresponds to the blade position of the first tufting hook 32 (similar to the structural form in which the two blade positions of scissors correspond to each other);

[0101] The second tufting knife 43, the second tufting knife 43 is fixed on the tufting knife seat 41 in multiple numbers and arranged in rows, and the blade of the second tufting knife 43 (the top of the second tufting knife 43 is the blade) corresponds to the blade position of the second tufting hook 33 (similar to the structural form in which the two blade positions of scissors correspond).

[0102] The distance between the first tufting needle and the second tufting needle in the same fork notch is smaller than the distance between the first tufting hook and the second tufting hook, and smaller than the distance between the first tufting knife and the second tufting knife, so that the risk of misplaced hooking of tufts can be reduced.

[0103] The needle portion of the first tufting needle 22 and the needle portion of the second tufting needle 23 are at the same height (see Fig.10 ), the hook portion of the first tufting hook 32 and the hook portion of the second tufting hook 33 are at the same height, and the blade of the first tufting knife 42 and the blade of the second tufting knife 43 are at the same height;

[0104] or,

[0105] The needle portion of the first tufting needle 22 is lower than the needle portion of the second tufting needle 23 (see Fig.13 In this way, the depths at which the tufting needles penetrate the base fabric are also different, which can make the grass fibers on the carpet surface present different heights, thereby improving the simulation and product characteristics of the artificial turf, which cannot be achieved by a single row of needles); the hook portion of the first tufting hook 32 is lower than the hook portion of the second tufting hook 33; the blade of the first tufting knife 42 is lower than the blade of the second tufting knife 43.

[0106] A plurality of first mounting needle holes 211 arranged in a row and a plurality of second mounting needle holes 212 arranged in a row are provided on the bottom end surface of the needle row seat 21. The head of the first tufting needle 22 is inserted into the first mounting needle hole 211, and the head of the second tufting needle 23 is inserted into the second mounting needle hole 212. A plurality of first top screws 24 and a plurality of second top screws 25 are respectively screwed on the two side surfaces of the needle row seat 21. The first top screw 24 is in tight contact with the head of the first tufting needle 22, and the second top screw 25 is in tight contact with the head of the second tufting needle 23.

[0107] The tufting hook seat 31 is provided with a first through hole 311 penetrating through both ends thereof along its length direction, a plurality of third top screws 34 are screwed along its length direction on the bottom end surface of the tufting hook seat 31, a plurality of first installation positioning holes 312 and second installation positioning holes 313 are respectively opened on one side surface of the tufting hook seat 31, both of which are connected to the first through hole 311, the first installation positioning holes 312 and the second installation positioning holes 313 are arranged alternately, the tail of the first tufting hook 32 is inserted into the first installation positioning hole 312, and the tail of the second tufting hook 33 is inserted into the second installation positioning hole 313;

[0108] The hook portions of the first tufting hook 32 and the second tufting hook 33 are at the same height (see Fig. 20), a first limiting plate 35 is disposed in the first through hole 311, the top end surface of the first limiting plate 35 is in contact with the bottom end surfaces of the tails of the first tufting hook 32 and the second tufting hook 33, and the third top wire 34 is in close contact with the bottom end surface of the first limiting plate 35;

[0109] or,

[0110] The hook portions of the first tufting hook 32 and the second tufting hook 33 are at different heights (see Fig. 22 ), a second limiting plate 36 and a third limiting plate 37 are provided in the first through hole 311, the top end surface of the second limiting plate 36 abuts against the bottom end surface of the tail of the first tufting hook 32, the third top wire 34 is in tight contact with the bottom end surface of the second limiting plate 36, and the third limiting plate 37 is clamped between the first tufting hook 32 and the second tufting hook 33.

[0111] A plurality of third mounting positioning holes 314 and a fourth mounting positioning hole 315 are respectively provided on the other side surface of the tufting hook seat 31, and are connected to the first through hole 311. The third mounting positioning holes 314 and the fourth mounting positioning holes 315 are arranged alternately. The tail of the first tufting hook 32 passes through the first mounting positioning hole 312 and is inserted into the third mounting positioning hole 314, and the tail of the second tufting hook 33 passes through the second mounting positioning hole 313 and is inserted into the fourth mounting positioning hole 315.

[0112] The tufting knife seat 41 is provided with a second through hole 411 penetrating through both ends thereof along its length direction, a plurality of fourth top screws 44 are screwed along its length direction on one side surface of the tufting knife seat 41, a plurality of fifth installation positioning holes 412 and sixth installation positioning holes 413 are respectively provided on the top surface of the tufting knife seat 41, both of which are connected with the second through hole 411, the fifth installation positioning holes 412 and the sixth installation positioning holes 413 are arranged alternately, the tail of the first tufting knife 42 is inserted into the fifth installation positioning hole 412, and the tail of the second tufting knife 43 is inserted into the sixth installation positioning hole 413;

[0113] A fourth limiting plate 45 and a fifth limiting plate 46 are provided in the second through hole 411. One side of the fourth limiting plate 45 abuts against one side of the first tufting knife 42. The fourth top screw 44 is in tight contact with the other side of the fourth limiting plate 45. The fifth limiting plate 46 is clamped between the first tufting knife 42 and the second tufting knife 43.

[0114] A plurality of seventh mounting positioning holes 414 and eighth mounting positioning holes 415 are respectively provided on the bottom end surface of the tufting knife holder 41, and are all connected to the second through hole 411. The seventh mounting positioning holes 414 and the eighth mounting positioning holes 415 are arranged alternately. The tail of the first tufting knife 42 passes through the fifth mounting positioning hole 412 and the seventh mounting positioning hole 414 in sequence, and the tail of the second tufting knife 43 passes through the sixth mounting positioning hole 413 and the eighth mounting positioning hole 415 in sequence.

[0115] In the above, the first driving unit, the second driving unit, and the third driving unit respectively drive the needle row seat, the tufting hook seat, and the tufting knife seat to perform corresponding actions, which are all conventional structures in the existing tufting machine, and the base fabric is driven by two licker-in rollers to move, which is also a conventional structure in the tufting machine. Therefore, the utility model does not illustrate these conventional structures, but this will not affect the normal understanding of the technology by those skilled in the art.

[0116] The working process of the tufting mechanism is as follows:

[0117] During operation, the base fabric moves horizontally at a uniform speed on the cloth fork driven by the licker-in roller, and the first threading hole on the first tufting needle and the second threading hole on the second tufting needle are respectively fed with grass fibers (the grass fibers include at least one straight artificial turf fiber and / or at least one curved artificial turf fiber), and then the first driving unit drives the needle row seat to move downward, thereby causing the first tufting needle and the second tufting needle to move downward synchronously. At this time, the adjacent first tufting needle and the second tufting needle are a group and pass through the same fork notch on the cloth fork together, and pierce the base fabric at the same time. At this time, the grass fibers pierce the base fabric together with the tufting needle, and at the same time, the second driving unit drives the tufting hook seat to extend, thereby causing the first tufting needle on it to move downward synchronously. The hook and the second tufting hook extend synchronously, and pass through the first notch and the second notch respectively, and hook the grass silk fibers on the first tufting needle and the second tufting needle respectively. At the same time, the third driving unit drives the tufting knife seat to move upward, so that the first tufting knife and the second tufting knife on it move upward synchronously, and cooperate with the first tufting hook and the second tufting hook respectively to cut the grass silk fibers to form pile heads, and the grass silk hooking pile is completed. After that, the first driving unit drives the needle row seat back to its original position upward, the second driving unit drives the tufting hook seat back and back to its original position, and the third driving unit drives the tufting knife seat to move downward back to its original position, and the above tufting action is completed. The various components of the tufting mechanism cooperate with reciprocating motion to tuft the grass silk fibers on the base fabric.

[0118] The tufting mechanism can adjust the needles of the two rows of tufting needles to be at the same height or different heights, or install tufting needles of different lengths, so as to achieve the effect of grass silks of equal height or different heights on the carpet surface. The grass silks of different heights are closer to the lawns in the natural environment, thereby improving the quality of the product.

[0119] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0120] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A tufting mechanism of an artificial turf tufting machine, characterized in that: include: A mop fork (1), the mop fork (1) is fixed on a table on the tufting machine and is used to support the base fabric; A double-row tufting needle assembly (2), the double-row tufting needle assembly (2) being connected to a first driving part on the tufting machine and used for driving the double-row tufting needle assembly (2) to move downward so as to drive the grass fibers thereon to pass through the fork notch (11) on the mopping fork (1) and through the base fabric; A double-row tufting hook assembly (3), the double-row tufting hook assembly (3) being connected to a second driving unit on the tufting machine and used for driving the double-row tufting hook assembly (3) to move horizontally so as to hook the grass fibers under the base fabric; A double-row tufting knife assembly (4) is connected to a third driving unit on the tufting machine and is used to drive the double-row tufting knife assembly (4) to move upwards to cooperate with the double-row tufting hook assembly (3) to cut the grass fibers.

2. The tufting mechanism of the artificial turf tufting machine according to claim 1, characterized in that: The double-row tufting needle assembly (2) comprises: A needle row seat (21), wherein the needle row seat (21) is connected to the first driving part; A first tufting needle (22), wherein the first tufting needle (22) is a plurality of needles inserted and fixed on the bottom end surface of the needle row seat (21) and arranged in a row; Second tufting needles (23), the second tufting needles (23) are multiple and fixed on the bottom end surface of the needle row seat (21), and arranged in a row, and the second tufting needles (23) and the first tufting needles (22) are arranged in a staggered manner; The double-row tufting hook assembly (3) comprises: A tufting hook seat (31), wherein the tufting hook seat (31) is connected to a second driving unit: A first tufting hook (32), wherein the first tufting hook (32) is fixed on the tufting hook seat (31) in a plurality and arranged in a row, and the hook portion of the first tufting hook (32) corresponds to the position of the needle portion of the first tufting needle (22); A second tufting hook (33), wherein the second tufting hook (33) is fixed on the tufting hook seat (31) in a plurality and arranged in a row, the hook portion of the second tufting hook (33) corresponds to the needle portion of the second tufting needle (23), and the second tufting hook (33) and the first tufting hook (32) are arranged in an alternating manner; The double-row tufting knife assembly (4) comprises: A tufting knife seat (41), wherein the tufting knife seat (41) is connected to a third driving unit; A first tufting knife (42), wherein the first tufting knife (42) is fixed on the tufting knife holder (41) in a plurality and arranged in a row, and the blade of the first tufting knife (42) corresponds to the blade position of the first tufting hook (32); A second tufting knife (43), wherein the second tufting knife (43) is a plurality of knives fixed on the tufting knife holder (41) and arranged in a row, and the blade of the second tufting knife (43) corresponds to the blade position of the second tufting hook (33).

3. The tufting mechanism of the artificial turf tufting machine according to claim 2, characterized in that: The needle portion of the first tufting needle (22) and the needle portion of the second tufting needle (23) are at the same height, the hook portion of the first tufting hook (32) and the hook portion of the second tufting hook (33) are at the same height, and the blade of the first tufting knife (42) and the blade of the second tufting knife (43) are at the same height; or, The needle portion of the first tufting needle (22) is lower or higher than the needle portion of the second tufting needle (23); the hook portion of the first tufting hook (32) is lower or higher than the hook portion of the second tufting hook (33); and the blade of the first tufting knife (42) is lower or higher than the blade of the second tufting knife (43).

4. The tufting mechanism of the artificial turf tufting machine according to claim 3, characterized in that: A plurality of first mounting needle holes (211) arranged in a row and a plurality of second mounting needle holes (212) arranged in a row are provided on the bottom end surface of the needle row seat (21); the head of the first tufting needle (22) is inserted into the first mounting needle hole (211), and the head of the second tufting needle (23) is inserted into the second mounting needle hole (212); a plurality of first top screws (24) and a plurality of second top screws (25) are respectively screwed on the two side surfaces of the needle row seat (21); the first top screw (24) is in tight contact with the head of the first tufting needle (22), and the second top screw (25) is in tight contact with the head of the second tufting needle (23).

5. The tufting mechanism of the artificial turf tufting machine according to claim 4, characterized in that: The tufting hook seat (31) is provided with a first through hole (311) penetrating through both ends thereof along its length direction; a plurality of third top screws (34) are screwed on the bottom end surface of the tufting hook seat (31) along its length direction; a plurality of first installation positioning holes (312) and second installation positioning holes (313) are respectively opened on one side surface of the tufting hook seat (31), both of which are connected to the first through hole (311); the first installation positioning holes (312) and the second installation positioning holes (313) are arranged alternately; the tail of the first tufting hook (32) is inserted into the first installation positioning hole (312), and the tail of the second tufting hook (33) is inserted into the second installation positioning hole (313); The hook parts of the first tufting hook (32) and the second tufting hook (33) are at the same height, a first limiting plate (35) is provided in the first through hole (311), the top end surface of the first limiting plate (35) is in contact with the bottom end surfaces of the tail parts of the first tufting hook (32) and the second tufting hook (33), and the third top wire (34) is in tight contact with the bottom end surface of the first limiting plate (35); or, The hook parts of the first tufting hook (32) and the second tufting hook (33) are at different heights, and a second limiting plate (36) and a third limiting plate (37) are provided in the first through hole (311). The top end surface of the second limiting plate (36) abuts against the bottom end surface of the tail of the first tufting hook (32), and the third top wire (34) is in tight contact with the bottom end surface of the second limiting plate (36). The third limiting plate (37) is clamped between the first tufting hook (32) and the second tufting hook (33).

6. The tufting mechanism of the artificial turf tufting machine according to claim 5, characterized in that: A plurality of third mounting positioning holes (314) and fourth mounting positioning holes (315) are respectively provided on the other side surface of the tufting hook seat (31), and are both connected to the first through hole (311). The third mounting positioning holes (314) and the fourth mounting positioning holes (315) are arranged alternately. The tail of the first tufting hook (32) passes through the first mounting positioning hole (312) and is inserted into the third mounting positioning hole (314). The tail of the second tufting hook (33) passes through the second mounting positioning hole (313) and is inserted into the fourth mounting positioning hole (315).

7. The tufting mechanism of the artificial turf tufting machine according to claim 5, characterized in that: The tufting knife seat (41) is provided with a second through hole (411) passing through both ends thereof along its length direction, a plurality of fourth top screws (44) are screwed on one side surface of the tufting knife seat (41) along its length direction, a plurality of fifth installation positioning holes (412) and sixth installation positioning holes (413) are respectively opened on the top end surface of the tufting knife seat (41), and the fifth installation positioning holes (412) and the sixth installation positioning holes (413) are arranged alternately, the tail of the first tufting knife (42) is inserted into the fifth installation positioning hole (412), and the tail of the second tufting knife (43) is inserted into the sixth installation positioning hole (413); A fourth limiting plate (45) and a fifth limiting plate (46) are provided in the second through hole (411); one side of the fourth limiting plate (45) is in contact with one side of the first tufting knife (42); the fourth top wire (44) is in tight contact with the other side of the fourth limiting plate (45); and the fifth limiting plate (46) is clamped between the first tufting knife (42) and the second tufting knife (43).

8. The tufting mechanism of the artificial turf tufting machine according to claim 7, characterized in that: The bottom end surface of the tufting knife holder (41) is respectively provided with a plurality of seventh mounting positioning holes (414) and eighth mounting positioning holes (415) which are both connected to the second through hole (411); the seventh mounting positioning holes (414) and the eighth mounting positioning holes (415) are arranged alternately; the tail of the first tufting knife (42) passes through the fifth mounting positioning hole (412) and the seventh mounting positioning hole (414) in sequence; the tail of the second tufting knife (43) passes through the sixth mounting positioning hole (413) and the eighth mounting positioning hole (415) in sequence.

9. The tufting mechanism of an artificial turf tufting machine according to any one of claims 2 to 8, characterized in that: The spacing between two adjacent first tufting needles (22) and the spacing Z between two adjacent second tufting needles (23) are both X, and the spacing Y between adjacent first tufting needles (22) and second tufting needles (23) is less than X / 2.

10. The tufting mechanism of an artificial turf tufting machine according to any one of claims 2 to 8, characterized in that: A first threading hole (221) for threading grass silk is provided near the needle portion of the first tufting needle (22), and a first notch (222) for allowing the hook portion of the first tufting hook (32) to pass through is provided near the first threading hole (221) of the first tufting needle (22); a second threading hole (231) for threading grass silk is provided near the needle portion of the second tufting needle (23), and a second notch (232) for allowing the hook portion of the second tufting hook (33) to pass through is provided near the second threading hole (231) of the second tufting needle (23); The first threading hole (221) and the second threading hole (231) are both elliptical in shape, and their areas are not less than 10 mm. 2 .

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