Tufting gun

Abstract

The utility model is applicable to the field of tufting equipment, and discloses a tufting gun which comprises a gun rack assembly, a poking needle, a first sliding block, a motor, a driving wheel and a first connecting piece, and the first sliding block is connected with the poking needle so as to be used for driving the poking needle to do reciprocating motion to poke woolen yarn into base cloth; the motor is mounted on the gun rack assembly; the driving wheel is in transmission connection with the motor and is driven by the motor to rotate; one end of the first connecting piece is fixedly connected with the driving wheel, and the other end of the first connecting piece is connected to the first sliding block in a connecting mode of sliding relative to the first sliding block and rotating relative to the first sliding block so as to drive the first sliding block to drive the poking needle to reciprocate in the first direction when the driving wheel rotates. When an operator operates the tufting gun on the base cloth, due to the fact that the first connecting piece is connected to the first sliding block in a sliding and rotating mode relative to the first sliding block, the poking needle is driven to move, and the size of the tufting gun is reduced.

Description

Technical Field

[0001] This utility model relates to the field of electric equipment, and in particular to a tufting gun. Background Technology

[0002] Tufting is a processing method that uses a row of needles to mechanically insert pile onto a base fabric to form a loop pile or cut pile blanket surface. It involves the reciprocating motion of tufting needles to implant pile yarns into a woven or non-woven base fabric. Traditionally, tufting guns are mostly used for this process. The tufting guns provided by related technologies have the following power transmission method: a vertically positioned motor drives a gear to rotate, the gear drives a crank to move, the crank drives two sliders to move, and the two sliders respectively drive the punching needle and the scissors. However, this tufting gun has the following problem: the gear connects to the sliders laterally through the crank, resulting in a large size for the tufting gun itself, which is not conducive to the miniaturization design of the tufting gun. Utility Model Content

[0003] The purpose of this utility model is to provide a tufting gun that aims to solve the technical problem of the large size of the tufting gun itself.

[0004] To achieve the above objectives, the present invention provides a tufting gun, comprising:

[0005] Gun mount assembly;

[0006] A punching needle, which is movably mounted on the gun holder assembly, is used to drive the yarn into the base fabric;

[0007] A first slider is connected to the sting needle to drive the sting needle to reciprocate.

[0008] An electric motor, which is mounted on the gun mount assembly;

[0009] A drive wheel, which is connected to the motor for rotating under the drive of the motor;

[0010] A first connector has one end fixedly connected to the drive wheel and the other end connected to the first slider in a manner that allows it to slide relative to the first slider and rotate relative to the first slider, so as to drive the first slider to drive the sting needle to reciprocate along a first direction when the drive wheel rotates.

[0011] In one embodiment, the first slider is provided with a groove extending in the second direction;

[0012] One end of the first connector is slidably and rotatably inserted into the groove;

[0013] Wherein, the first direction is the length direction of the tufting gun, and the second direction is the width direction of the tufting gun.

[0014] In one embodiment, the first connecting member includes a connecting rod and a bearing. One end of the connecting rod is threadedly connected to the drive wheel, and the bearing is rotatably sleeved on the end of the connecting rod away from the drive wheel, with the outer sidewall of the bearing abutting against the sidewall of the groove.

[0015] In one embodiment, the tufting gun further includes scissors, a second slider, and a pulley transmission assembly. The scissors are movably mounted on the gun frame assembly for cutting the yarn tufted into the base fabric.

[0016] The pulley transmission assembly drives the first slider and the second slider, so as to drive the second slider to move the scissors in the opposite direction to the needle under the action of the first slider.

[0017] In one embodiment, the pulley transmission assembly includes a first fixed pulley, a second fixed pulley, and a first traction component, wherein the first fixed pulley and the second fixed pulley are spaced apart on the gun mount assembly along the first direction;

[0018] The first slider and the second slider are both disposed between the first fixed pulley and the second fixed pulley along the first direction, and the first slider and the second slider are spaced apart along the third direction;

[0019] The first traction component is wound around the first fixed pulley and the second fixed pulley, and is connected to the first slider and the second slider respectively, so as to drive the second slider to move in the opposite direction when the first slider moves;

[0020] Wherein, the first direction is the length direction of the tufting gun, and the third direction is the height direction of the tufting gun.

[0021] In one embodiment, the end of the punching needle away from the motor is provided with a threading groove, which is used to thread and fix the yarn, and to allow the yarn and the punching needle to slide relative to each other in the first direction when the punching needle drives the yarn to move.

[0022] The dimension of the threading groove extending along the first direction is greater than or equal to 1.5 times the dimension of the threading groove extending along the second direction; and / or,

[0023] The dimension of the threading groove extending along the second direction is in the range of 1.5mm to 4.5mm, and the dimension of the threading groove extending along the first direction is in the range of 5mm to 9mm.

[0024] In one embodiment, the first traction component passes through the first slider; the tufting gun further includes a first tensioning member, which is adjustablely passed through the first slider and abuts against a portion of the first traction component located within the first slider to tension the first traction component; and / or,

[0025] The first traction component is inserted into the second slider; the tufting gun also includes a second tensioning component, which is adjustablely inserted into the second slider and abuts against a portion of the first traction component located within the second slider to tension the first traction component.

[0026] In one embodiment, the pulley transmission assembly includes a third fixed pulley, a fourth fixed pulley, a first movable pulley, a second movable pulley, and a second traction component. The third fixed pulley and the fourth fixed pulley are spaced apart on the gun mount assembly along the first direction.

[0027] The first slider and the second slider are both disposed between the third fixed pulley and the fourth fixed pulley along the first direction, and the first slider and the second slider are spaced apart along the third direction;

[0028] The first movable pulley and the second movable pulley are spaced apart on the first slider along the first direction;

[0029] The second traction component is sequentially wound around the first movable pulley, the third fixed pulley, the fourth fixed pulley and the second movable pulley, and one end of the second traction component extends through the first movable pulley and connects to the gun mount assembly, and the other end of the second traction component extends through the second movable pulley and connects to the gun mount assembly;

[0030] The second slider is connected to the part of the second traction component located between the third fixed pulley and the fourth fixed pulley, so that when the first slider moves, the second traction component can drive the second slider to move in the opposite direction;

[0031] Wherein, the first direction is the length direction of the tufting gun, and the third direction is the height direction of the tufting gun.

[0032] In one embodiment, the end of the punching needle away from the motor is provided with a needle hole, which is used to pass through and fix the yarn so that the punching needle can drive the yarn to move synchronously.

[0033] The size of the needle hole in the first direction is less than or equal to 1.2 times the diameter of the yarn; and / or,

[0034] The diameter of the yarn is in the range of 1.5mm to 4.5mm, and the size of the needle hole along the first direction is in the range of 1.5mm to 3.5mm.

[0035] In one embodiment, the output shaft of the motor is arranged along the first direction;

[0036] The drive wheel is a first cylindrical gear, and the tufting gun also includes a first bevel gear, a second bevel gear, and a second cylindrical gear. The first bevel gear is mounted on the output shaft of the motor, and the axial direction of the second bevel gear is arranged along a third direction, and the second bevel gear meshes with the first bevel gear.

[0037] The second cylindrical gear and the second bevel gear are coaxially and rotatably mounted on the gun mount assembly;

[0038] The first cylindrical gear and the second cylindrical gear are both arranged along the third direction, and the first cylindrical gear and the second cylindrical gear are arranged side by side along the first direction and mesh with each other;

[0039] One end of the first connector is fixedly connected to the first cylindrical gear.

[0040] The tufting gun provided by this utility model uses a motor to drive a drive wheel, which in turn drives a first slider. The first slider then drives the stamping needle to move on the base fabric, thereby achieving automatic pattern formation on the base fabric. Furthermore, because the tufting gun of this utility model uses a connection method where one end of the first connecting member slides relative to the first slider and can rotate relative to the first slider, while the other end of the first connecting member is fixedly connected to the drive wheel, there is no need to set a horizontally arranged crank structure on the tufting gun to drive the slider, thus reducing the size of the tufting gun. Attached Figure Description

[0041] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0042] Figure 1 This is a three-dimensional schematic diagram of the tufting gun provided in Embodiment 1 of this utility model from one perspective;

[0043] Figure 2 yes Figure 1 Exploded view;

[0044] Figure 3This is an assembly diagram of the drive wheel, the first connecting member, and the first slider provided in Embodiment 1 of this utility model;

[0045] Figure 4 This is an assembly diagram of the first slider, pulley transmission assembly, and second slider provided in Embodiment 1 of this utility model after the first guide rod and the second guide rod are removed from the gun frame assembly;

[0046] Figure 5 yes Figure 4 A top-view plan view;

[0047] Figure 6 yes Figure 5 Sectional view of AA;

[0048] Figure 7 This is a schematic diagram of the assembly of the first bevel gear, the second bevel gear, the second cylindrical gear, and the first cylindrical gear on the gun mount assembly according to Embodiment 1 of this utility model;

[0049] Figure 8 This is an assembly diagram of the first slider and the piercing needle provided in Embodiment 1 of this utility model;

[0050] Figure 9 This is an assembly diagram of the second slider and scissors provided in Embodiment 1 of this utility model;

[0051] Figure 10 This is a schematic diagram of the structure of the first slider provided in Embodiment 1 of this utility model;

[0052] Figure 11 This is a schematic diagram of the structure of the first connector provided in Embodiment 1 of this utility model;

[0053] Figure 12 This is a schematic diagram of the structure of the second slider provided in Embodiment 1 of this utility model;

[0054] Figure 13 This is an assembly diagram of the first slider, pulley transmission assembly, and second slider provided in Embodiment 2 of this utility model;

[0055] Figure 14 This is a schematic diagram of the puncture needle structure provided in Embodiment 2 of this utility model.

[0056] Reference numerals: 10, tufting gun; 100, gun mount assembly; 110, first guide rod; 120, second guide rod; 200, motor; 300, drive wheel; 310, first connecting hole; 400, first connector; 410, bearing; 420, connecting rod; 500, first slider; 510, slide groove; 520, first limiting groove; 530, second connecting hole; 540, first threaded hole; 550, first slotted hole; 600, piercing needle; 610, threading groove; 620, needle hole; 700, second slider... Block; 710, Second limiting groove; 720, Third connecting hole; 730, Second threaded hole; 740, Second slot; 800, Scissors; 900, Pulley transmission assembly; 910, First fixed pulley; 920, Second fixed pulley; 930, First traction component; 940, Third fixed pulley; 950, Fourth fixed pulley; 960, First movable pulley; 970, Second movable pulley; 980, Second traction component; 1000, First bevel gear; 1100, Second bevel gear; 1200, Second cylindrical gear. Detailed Implementation

[0057] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0058] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indicator will also change accordingly.

[0059] It should also be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or may be connected to an intermediary component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component through an intermediary component.

[0060] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0061] Example 1:

[0062] refer to Figure 1 and Figure 2 As shown, the tufting gun 10 provided in this embodiment includes a gun frame assembly 100, a tufting needle 600, a motor 200, a drive wheel 300, a first slider 500, and a first connector 400. The tufting needle 600 is movably mounted on the gun frame assembly 100 to drive the yarn to be tufted into the base fabric. The first slider 500 is connected to the tufting needle 600 to drive the tufting needle 600 to reciprocate. The motor 200 is mounted on the gun frame assembly 100. The drive wheel 300 is driven by the motor 200 to rotate. One end of the first connector 400 is fixedly connected to the drive wheel 300, and the other end is connected to the first slider 500 in a way that allows it to slide and rotate relative to the first slider 500, so as to drive the first slider 500 to reciprocate in a first direction parallel to the direction of movement of the tufting needle 600 when the drive wheel 300 rotates.

[0063] Specifically, when the operator uses the tufting gun 10, the operator holds the gun holder assembly 100, starts the motor 200 to drive the drive wheel 300, which in turn drives the first connecting member 400, which in turn drives the first slider 500, causing the tufting needles 600 on the gun holder assembly 100 to reciprocate in a first direction, tufting the yarn on the needles 600 into the base fabric, thereby forming a pattern on the base fabric. Since this embodiment only has the first connecting member 400 on the drive wheel 300, and the first connecting member 400 is connected to the first slider 500 through a connection that allows it to slide and rotate relative to the first slider 500, when the drive wheel 300 drives the first connecting member 400, the first connecting member 400 drives the first slider 500, which in turn drives the tufting needles 600, thus simplifying the internal structure of the tufting gun 10.

[0064] refer to Figure 1 , Figure 3 and Figure 10As shown, in one embodiment, the first slider 500 is provided with a groove 510 extending along a second direction; one end of the first connector 400 is slidably and rotatably inserted into the groove 510; wherein, the first direction is the length direction of the tufting gun 10, and the second direction is the width direction of the tufting gun 10. In this embodiment, the groove 510 is provided on the side of the first slider 500 near the drive wheel 300, so that the first connector 400 can move while moving within the groove 510, thereby driving the first slider 500 to move.

[0065] The slide groove 510 extends along the second direction and passes through the opposite sides of the first slider 500, thereby restricting the first connecting member 400 from moving along the second direction within the slide groove 510 under the drive of the drive wheel 300.

[0066] refer to Figure 3 and Figure 11 As shown, in one embodiment, the first connecting member 400 includes a connecting rod 420 and a bearing 410. One end of the connecting rod 420 is threadedly connected to the drive wheel 300, and the bearing 410 is rotatably sleeved on the end of the connecting rod 420 away from the drive wheel 300, and the outer side wall of the bearing 410 abuts against the side wall of the slide groove 510.

[0067] In this embodiment, by threading one end of the connecting rod 420 to the drive wheel 300 and connecting the other end to the bearing 410 in such a way that the bearing 410 can rotate relative to the connecting rod 420, and the bearing 410 can be inserted into the slide groove 510, the installation and removal of the first connecting member 400 on the drive wheel 300 is made quicker.

[0068] The part where the connecting rod 420 connects to the drive wheel 300 is eccentrically positioned relative to the drive wheel 300.

[0069] The drive wheel 300 is provided with a first connecting hole 310 for threaded connection with the connecting rod 420 of the first connecting member 400.

[0070] In this design, the bearing 410 portion of the first connecting member 400 passes through the slide groove 510, and the outer side wall of the bearing 410 abuts against the inner side wall of the slide groove 510. The end of the connecting rod 420 away from the drive wheel 300 is connected to the inner side wall of the bearing 410. Under the drive of the drive wheel 300, the connecting rod 420 drives the bearing 410 to reciprocate along the first direction. At the same time, the bearing 410 can rotate relative to the first slider 500, which helps to reduce the friction between the first connecting member 400 and the first slider 500, making the movement smoother.

[0071] refer to Figure 1 , Figure 2 and Figure 9As shown, in one embodiment, the tufting gun 10 also includes scissors 800, a second slider 700, and a pulley transmission assembly 900. The scissors 800 are movably mounted on the gun frame assembly 100 for cutting the yarn tufted into the base fabric. The pulley transmission assembly 900 is connected to the first slider 500 and the second slider 700 for driving the second slider 700 under the action of the first slider 500 to drive the scissors 800 to move in the opposite direction to the tufting needle 600.

[0072] In this embodiment, the drive wheel 300 drives the first slider 500 to move via the first connector 400. Simultaneously, the first slider 500 drives the stamping needle 600 to move. Since the first slider 500 is connected to the second slider 700 via the pulley transmission assembly 900, the first slider 500 also drives the second slider 700 to move. Finally, the second slider 700 drives the scissors 800 to move in the opposite direction relative to the stamping needle 600. The above transmission method eliminates the upper and lower crank structure, simplifying the internal structure of the tufting gun 10.

[0073] The first slider 500 has a first limiting groove 520 on the side away from the drive wheel 300 along the first direction. The first limiting groove 520 has a second connecting hole 530. A portion of the puncture needle 600 passes through the first limiting groove 520 and is threadedly connected to the second connecting hole 530 in the first limiting groove 520 by a first bolt, so that the puncture needle 600 reciprocates along the first direction under the drive of the first slider 500.

[0074] The punching needle 600 passes through the first limiting groove 520 and extends to the outside of the gun holder assembly 100, so that after the drive wheel 300 drives the first slider 500, the first slider 500 drives the punching needle 600 to reciprocate along the first direction, punching the yarn on the punching needle 600 into the base fabric.

[0075] The second slider 700 has a second limiting groove 710 on the side near the first slider 500 along the first direction. The second limiting groove 710 has a third connecting hole 720. A portion of the scissors 800 passes through the second limiting groove 710 and is threadedly connected to the third connecting hole 720 in the second limiting groove 710 by a second bolt. This allows the scissors 800 to drive the pulley transmission assembly 900 under the drive of the first slider 500, thereby driving the second slider 700 to reciprocate along the first direction. Finally, the scissors 800 reciprocates along the first direction following the second slider 700.

[0076] The scissors 800 are inserted into the second limiting groove 710 and extend to the outside of the gun holder assembly 100. When the drive wheel 300 drives the needle 600 to extend out of the gun holder assembly 100 to insert the yarn into the base fabric and then retracts into the gun holder assembly 100, the scissors 800 extend out of the gun holder assembly 100 and cut the yarn on the needle 600.

[0077] The tufting gun 10 has a gun holder assembly 100 with a first guide rod 110 and a second guide rod 120. The first guide rod 110 and the second guide rod 120 are spaced apart along the height direction of the tufting gun 10. A portion of the first slider 500 passes through the first guide rod 110, and a portion of the second slider 700 passes through the second guide rod 120. The first slider 500 moves on the first guide rod 110 under the drive of the drive wheel 300, and the second slider 700 moves on the second guide rod 120 under the drive of the first slider 500.

[0078] It should be noted that the connection between the first slider 500 and the second slider 700 is not limited to the connection via the pulley transmission assembly 900. For example, the first slider 500 and the second slider 700 can also be connected to each other via a belt transmission assembly. Those skilled in the art can configure it according to the actual situation, and no specific limitation is made here.

[0079] It should be noted that the method of driving the second slider 700 is not limited to connecting the first slider 500 with the pulley transmission assembly 900 to drive the second slider 700. For example, the second slider 700 can also be driven by a second motor directly driving it. Those skilled in the art can set it according to the actual situation, and no specific limitation is made here.

[0080] refer to Figure 1 and Figure 4 As shown, in one embodiment, the pulley transmission assembly 900 includes a first fixed pulley 910, a second fixed pulley 920, and a first traction component 930. The first fixed pulley 910 and the second fixed pulley 920 are spaced apart on the gun holder assembly 100 along a first direction. The first slider 500 and the second slider 700 are both disposed between the first fixed pulley 910 and the second fixed pulley 920 along the first direction, and the first slider 500 and the second slider 700 are spaced apart along a third direction. The first traction component 930 is wound around the first fixed pulley 910 and the second fixed pulley 920, and is connected to the first slider 500 and the second slider 700 respectively, so as to drive the second slider 700 to move in the opposite direction when the first slider 500 moves. The first direction is the length direction of the tufting gun 10, and the third direction is the height direction of the tufting gun 10.

[0081] In this embodiment, two fixed pulleys and a traction component are provided on the pulley transmission assembly 900. Driven by the drive wheel 300, the first fixed pulley 910 can move the second slider 700 connected to the pulley transmission assembly 900 by sliding the first traction component 930 (connected to the first slider 500) on the two fixed pulleys. This allows the needle 600 on the first slider 500 and the scissors 800 on the second slider 700 to move. By connecting the first slider 500 to the pulley transmission assembly 900 and thus driving the second slider 700, the transmission structure of the tufting gun 10 is simplified, reducing its cost.

[0082] The second slider 700 is positioned above the first slider 500, and the pulley transmission assembly 900 is positioned between the first slider 500 and the second slider 700, so that the size of the tufting gun 10 is reduced in the first direction.

[0083] The first slider 500 has a first threaded hole 540 on the side away from the drive wheel 300. The first slider 500 also includes a first screw, which cooperates with the first threaded hole 540 to fix the first slider 500 to the first traction component 930. The first screw is not shown in the accompanying drawings.

[0084] The second slider 700 has a second threaded hole 730 on the side near the drive wheel 300. The second slider 700 also includes a second screw, which cooperates with the second threaded hole 730 to fix the second slider 700 to the first traction component 930. The second screw is not shown in the attached drawings.

[0085] The first traction component 930 has a ring structure and is wrapped around the first fixed pulley 910 and the second fixed pulley 920.

[0086] refer to Figure 1 and Figure 8 As shown, in one embodiment, the end of the punching needle 600 away from the motor 200 is provided with a threading groove 610. The threading groove 610 is used to thread and fix the yarn, and to allow the yarn and the punching needle 600 to slide relative to each other in the first direction when the punching needle 600 drives the yarn to move.

[0087] The dimension of the threading groove 610 extending in the first direction is greater than or equal to 1.5 times the dimension of the threading groove 610 extending in the second direction. The threading groove 610 is used to thread and fix the yarn, and is used to enable the yarn and the needle 600 to slide relative to each other in the first direction when the needle 600 drives the yarn to move.

[0088] The diameter of the yarn is taken in the range of 1.5mm to 4.5mm, and the dimension of the threading groove 610 along the first direction is taken in the range of 5mm to 9mm.

[0089] In this embodiment, when the first slider 500 and the second slider 700 are connected by the first fixed pulley 910, the second fixed pulley 920 and the first traction component 930, since the movement speed and stroke of the punching needle 600 on the first slider 500 and the scissors 800 on the second slider 700 are the same, it is easy for the punching needle 600 to pull the yarn backward, and the yarn will be pulled out of the base fabric for too long, resulting in the yarn loosening and uneven cuts. Therefore, a threading groove 610 is provided on the punching needle 600. When the punching needle 600 drives the yarn to move back and forth, the yarn and the punching needle 600 will slide relative to each other, which can ensure that the back and forth movement of the yarn is limited and avoid the above situation.

[0090] The yarn diameter is in the range of 2mm to 4mm, the threading groove 610 has a size in the first direction of 5mm to 7mm, and the threading groove 610 has a size in the second direction of 2mm to 3mm.

[0091] refer to Figure 1 , Figure 5 , Figure 6 , Figure 10 and Figure 12 As shown, in one embodiment, the first traction component 930 is inserted into the first slider 500; the tufting gun 10 also includes a first tensioning member, which is adjustablely inserted into the first slider 500 and abuts against a portion of the first traction component 930 located within the first slider 500 to tension the first traction component 930.

[0092] The first traction component 930 is inserted into the second slider 700; the tufting gun 10 also includes a second tensioning component, which is adjustablely inserted into the second slider 700 and abuts against a portion of the first traction component 930 located within the second slider 700 to tension the first traction component 930.

[0093] In this embodiment, the tensioning member abuts against the traction component inside the slider, thereby achieving the tensioning effect of the tensioning member on the traction component. When the connection between the traction component and the pulley becomes loose during the use of the tufting gun 10, the tensioning member can be used to adjust the tightness of the traction component on the pulley to ensure the operation of the traction component.

[0094] The first slider 500 is provided with a first slot 550, which is located on the side of the first slider 500 away from the drive wheel 300. The second slider 700 is provided with a second slot 740, which is located on the side of the second slider 700 away from the drive wheel 300. Both the first slot 550 and the second slot 740 are through holes. The first slot 550 penetrates a portion of the first slider 500 along a third direction, and the second slot 740 penetrates a portion of the second slider 700 along a third direction. The first slot 550 is used to cooperate with the first tensioning member, and the second slot 740 is used to cooperate with the second tensioning member. After the first tensioning member passes through the first slot 550, it contacts the first traction member 930. After the second tensioning member passes through the second slot 740, it also contacts the first traction member 930, so that the first traction member 930 is deformed, thereby achieving the function of adjusting the tension of the first traction member 930.

[0095] The first and second tensioners are not shown in the accompanying drawings.

[0096] When the first tensioning member engages with the first slot 550, a portion of the first tensioning member can move along a third direction within the first slot 550, so that the first traction member 930, which is in contact with the first tensioning member, will also deform along a third direction. The greater the deformation of the first traction member 930 in the third direction, the tighter the tension of the first traction member 930.

[0097] It should be noted that the tensioning principle of the second tensioning member on the first traction component 930 is the same as that of the first tensioning member on the first traction component 930, and will not be described in detail here.

[0098] The dimensions of the first slot 550 and the second slot 740 along the first direction are preferably 16 mm. This is because if the dimensions of the first slot 550 and the second slot 740 along the first direction are too large, the tensioning effect generated after the first tensioning member and the second tensioning member contact the first traction member 930 will be less significant. If the dimensions are too small, the first tensioning member and the second tensioning member will be prone to breakage after contact with the first traction member 930, affecting the overall operation of the tufting gun 10. It should be noted that the dimensions of the first slot 550 and the second slot 740 along the first direction are not limited to 16 mm. Those skilled in the art can set them according to actual conditions, and no specific limitation is made here.

[0099] refer to Figure 1 , Figure 2 and Figure 7As shown, in one embodiment, the output shaft of the motor 200 is arranged along a first direction; the drive wheel 300 is a first cylindrical gear, and the tufting gun 10 also includes a first bevel gear 1000, a second bevel gear 1100, and a second cylindrical gear 1200. The first bevel gear 1000 is mounted on the output shaft of the motor 200, the axial direction of the second bevel gear 1100 is arranged along a third direction, and the second bevel gear 1100 meshes with the first bevel gear 1000; the second cylindrical gear 1200 and the second bevel gear 1100 are coaxially and rotatably arranged on the gun holder assembly 100; the axial directions of the first cylindrical gear and the second cylindrical gear 1200 are both arranged along a third direction, and the first cylindrical gear and the second cylindrical gear 1200 are arranged side by side along the first direction and mesh with each other; one end of the first connecting member 400 is fixedly connected to the first cylindrical gear.

[0100] In this embodiment, the output shaft of the motor 200 is arranged along a first direction, and a first bevel gear 1000 is provided on the output shaft of the motor 200. When the output shaft of the motor 200 rotates, it drives the first bevel gear 1000 to rotate, which in turn drives the second bevel gear 1100 to rotate. Since the second bevel gear 1100 and the second cylindrical gear 1200 are coaxially arranged, when the second bevel gear 1100 rotates, the second cylindrical gear 1200 will also rotate, ultimately driving the first cylindrical gear to rotate. By placing the output shaft of the motor 200 along the first direction and using bevel gear transmission on the output shaft of the motor 200 to ultimately drive the first cylindrical gear, the motor 200 can be installed inside the gun holder assembly 100, thereby protecting the motor 200 and making the appearance of the tufting gun 10 more aesthetically pleasing.

[0101] It should be noted that the first cylindrical gear is the drive wheel 300.

[0102] It should be noted that the method of setting the motor 200 is not limited to setting the motor 200 on the gun mount assembly 100 by using bevel gears. Those skilled in the art can set it according to the actual situation, and no specific limitation is made here.

[0103] Example 2:

[0104] Reference Figure 4 , Figure 8 , Figure 13 and Figure 14 The tufting gun 10 provided in this embodiment differs from that in Embodiment 1 mainly in the structure of the pulley transmission assembly 900 and the punching needle 600.

[0105] In one embodiment, the pulley transmission assembly 900 includes a third fixed pulley 940, a fourth fixed pulley 950, a first movable pulley 960, a second movable pulley 970, and a second traction component 980. The third fixed pulley 940 and the fourth fixed pulley 950 are spaced apart on the gun holder assembly 100 along a first direction. The first slider 500 and the second slider 700 are both disposed between the third fixed pulley 940 and the fourth fixed pulley 950 along the first direction, and are spaced apart along the third direction. The first movable pulley 960 and the second movable pulley 970 are spaced apart on the first slider 500 along the first direction. The second traction component 980 is sequentially wound around the pulley. The first movable pulley 960, the third fixed pulley 940, the fourth fixed pulley 950, and the second movable pulley 970 are connected together. One end of the second traction component 980 extends through the first movable pulley 960 and connects to the gun frame assembly 100, and the other end of the second traction component 980 extends through the second movable pulley 970 and connects to the gun frame assembly 100. The second slider 700 is connected to the second traction component 980 at the position between the third fixed pulley 940 and the fourth fixed pulley 950, so as to drive the second slider 700 to move in the opposite direction when the first slider 500 moves. The first direction is the length direction of the tufting gun 10, and the third direction is the height direction of the tufting gun 10.

[0106] In this embodiment, when the drive wheel 300 drives the first slider 500 to move, the two movable pulleys on the first slider 500 move together with the first slider 500 in the first direction. The second traction component 980, wrapped around the two movable pulleys, drives the second slider 700 to move in the first direction under the action of the two fixed pulleys. By setting the two movable pulleys to move together with the first slider 500 to drive the second slider 700, the speed ratio of the second slider 700 to the first slider 500 is 2:1. This prevents the yarn from being pulled too far out of the base fabric when the needle 600 on the first slider 500 pulls the yarn backward, thus preventing the yarn from unraveling.

[0107] The first movable pulley 960 and the second movable pulley 970 are disposed on the outer side wall of the first slider 500 so that the first slider 500 moves under the drive of the drive wheel 300. The first movable pulley 960 and the second movable pulley 970 follow the first slider 500 and reciprocate along the first direction, thereby driving the second slider 700 to move.

[0108] The second slider 700, located on the side furthest from the drive wheel 300, is positioned within the third slot. It also includes a third fastener, which engages with the third slot and passes through it to contact the second traction component 980, thereby adjusting the tension of the second traction component 980. It should be noted that the third slot and the third fastener are not shown in the accompanying drawings.

[0109] In one embodiment, the end of the punching needle 600 away from the motor 200 is provided with a needle hole 620, which is used to pass through and fix the yarn so that the punching needle 600 can drive the yarn to move synchronously; the size of the needle hole 620 in the first direction is less than or equal to 1.2 times the diameter of the yarn.

[0110] In one implementation, the yarn diameter is taken in the range of 1.5mm to 4.5mm, and the size of the needle hole 620 along the first direction is taken in the range of 1.5mm to 3.5mm.

[0111] The yarn diameter is in the range of 2mm to 4mm, and the size of the needle hole 620 along the first direction is in the range of 2mm to 3mm.

[0112] The tufting gun 10 provided by this utility model allows the operator to start the motor 200 on the gun holder assembly 100 when using the tufting gun 10. The motor 200 drives the drive wheel 300 to rotate, and the rotation of the drive wheel 300 also drives the first connecting member 400 connected to it to rotate. The first connecting member 400 then drives the first slider 500 to reciprocate in a first direction, so that the needles 600 on the first slider 500 can insert yarn into the base fabric to form different patterns. Because the first connecting member 400 connected to the drive wheel 300 can rotate relative to the first slider 500, and drives the first slider 500 to drive the needles 600 to reciprocate in the first direction when the drive wheel 300 rotates, the structure of the tufting gun 10 is simplified and its size is reduced.

[0113] Apart from the differences mentioned above, the other parts of the tufting gun 10 provided in this embodiment can be referred to in Embodiment 1, and will not be described in detail here.

[0114] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A tufting gun, characterized in that, include: Gun mount assembly; A punching needle, which is movably mounted on the gun holder assembly, is used to drive the yarn into the base fabric; A first slider is connected to the sting needle to drive the sting needle to reciprocate. An electric motor, which is mounted on the gun mount assembly; A drive wheel, which is connected to the motor for rotating under the drive of the motor; A first connector has one end fixedly connected to the drive wheel and the other end connected to the first slider in a manner that allows it to slide relative to the first slider and rotate relative to the first slider, so as to drive the first slider to drive the sting needle to reciprocate along a first direction when the drive wheel rotates.

2. The tufting gun as described in claim 1, characterized in that, The first slider is provided with a groove extending in the second direction; One end of the first connector is slidably and rotatably inserted into the groove; Wherein, the first direction is the length direction of the tufting gun, and the second direction is the width direction of the tufting gun.

3. The tufting gun as described in claim 2, characterized in that, The first connecting member includes a connecting rod and a bearing. One end of the connecting rod is threadedly connected to the drive wheel. The bearing is rotatably sleeved on the end of the connecting rod away from the drive wheel, and the outer side wall of the bearing abuts against the side wall of the groove.

4. The tufting gun as described in any one of claims 1 to 3, characterized in that, The tufting gun also includes scissors, a second slider, and a pulley transmission assembly. The scissors are movably mounted on the gun frame assembly for cutting the yarn pierced into the base fabric. The pulley transmission assembly drives the first slider and the second slider, so as to drive the second slider to move the scissors in the opposite direction to the needle under the action of the first slider.

5. The tufting gun as described in claim 4, characterized in that, The pulley transmission assembly includes a first fixed pulley, a second fixed pulley, and a first traction component. The first fixed pulley and the second fixed pulley are spaced apart on the gun mount assembly along the first direction. The first slider and the second slider are both disposed between the first fixed pulley and the second fixed pulley along the first direction, and the first slider and the second slider are spaced apart along the third direction; The first traction component is wound around the first fixed pulley and the second fixed pulley, and is connected to the first slider and the second slider respectively, so as to drive the second slider to move in the opposite direction when the first slider moves; Wherein, the first direction is the length direction of the tufting gun, and the third direction is the height direction of the tufting gun.

6. The tufting gun as described in claim 5, characterized in that, The end of the punching needle away from the motor is provided with a threading groove, which is used to thread and fix the yarn, and to allow the yarn and the punching needle to slide relative to each other in the first direction when the punching needle drives the yarn to move. The dimension of the threading groove extending along the first direction is greater than or equal to 1.5 times the dimension of the threading groove extending along the second direction; and / or, The dimension of the threading groove extending along the second direction is in the range of 1.5mm to 4.5mm, and the dimension of the threading groove extending along the first direction is in the range of 5mm to 9mm.

7. The tufting gun as described in claim 5, characterized in that, The first traction component is inserted into the first slider; the tufting gun further includes a first tensioning member, which is adjustablely inserted into the first slider and abuts against a portion of the first traction component located within the first slider to tension the first traction component; and / or The first traction component is inserted into the second slider; the tufting gun also includes a second tensioning component, which is adjustablely inserted into the second slider and abuts against a portion of the first traction component located within the second slider to tension the first traction component.

8. The tufting gun as described in claim 5, characterized in that, The pulley transmission assembly includes a third fixed pulley, a fourth fixed pulley, a first movable pulley, a second movable pulley, and a second traction component. The third fixed pulley and the fourth fixed pulley are spaced apart on the gun mount assembly along the first direction. The first slider and the second slider are both disposed between the third fixed pulley and the fourth fixed pulley along the first direction, and the first slider and the second slider are spaced apart along the third direction; The first movable pulley and the second movable pulley are spaced apart on the first slider along the first direction; The second traction component is sequentially wound around the first movable pulley, the third fixed pulley, the fourth fixed pulley and the second movable pulley, and one end of the second traction component extends through the first movable pulley and connects to the gun mount assembly, and the other end of the second traction component extends through the second movable pulley and connects to the gun mount assembly; The second slider is connected to the part of the second traction component located between the third fixed pulley and the fourth fixed pulley, so that when the first slider moves, the second traction component can drive the second slider to move in the opposite direction; Wherein, the first direction is the length direction of the tufting gun, and the third direction is the height direction of the tufting gun.

9. The tufting gun as described in claim 8, characterized in that, The end of the punching needle away from the motor has a through hole for threading and fixing the yarn so that the punching needle can drive the yarn to move synchronously. The size of the needle hole in the first direction is less than or equal to 1.2 times the diameter of the yarn; and / or, The diameter of the yarn is in the range of 1.5mm to 4.5mm, and the size of the needle hole along the first direction is in the range of 1.5mm to 3.5mm.

10. The tufting gun as described in claim 4, characterized in that, The output shaft of the motor is arranged along the first direction; The drive wheel is a first cylindrical gear, and the tufting gun also includes a first bevel gear, a second bevel gear, and a second cylindrical gear. The first bevel gear is mounted on the output shaft of the motor, and the axial direction of the second bevel gear is arranged along a third direction, and the second bevel gear meshes with the first bevel gear. The second cylindrical gear and the second bevel gear are coaxially and rotatably mounted on the gun mount assembly; The first cylindrical gear and the second cylindrical gear are both arranged along the third direction, and the first cylindrical gear and the second cylindrical gear are arranged side by side along the first direction and mesh with each other; One end of the first connector is fixedly connected to the first cylindrical gear.

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