阅读说明：本技术 一种地毯机 (Carpet machine ) 是由 杨晓理 李必新 杨加勇 王生端 张娟 何贵友 于 2019-10-30 设计创作，主要内容包括：本发明公开了一种地毯机,包括网钉架、外框架、内框架及主机架,网钉架与外框架固定连接,内框架在外框架内活动连接且可以左右移动,主机架设于内框架上且可以上下移动,主机架上设针机且可以前后移动；所述针机包括机头及机尾,机尾设旋转动力装置,连接机头；机头设叉针联动装置、送线针联动装置,实现互相联动且同步相反方向；实现连接机头的叉针及送线针的往复运行,实现地毯机编制地毯工作。本发明中外框架、内框架及主机架上均通过设置丝杠组件,实现上下前后左右三轴自动化运动,其运动稳定且精度高；针机的结构设计合理,实现针机全方位的工作,保证地毯机的编制质量。(The invention discloses a carpet machine, which comprises a net nail frame, an outer frame, an inner frame and a main frame, wherein the net nail frame is fixedly connected with the outer frame; the needle machine comprises a machine head and a machine tail, wherein the machine tail is provided with a rotary power device which is connected with the machine head; the machine head is provided with a fork needle linkage device and a thread feeding needle linkage device to realize mutual linkage and synchronous opposite directions; the reciprocating operation of the fork needle and the thread feeding needle connected with the machine head is realized, and the carpet weaving work of the carpet machine is realized. According to the invention, the outer frame, the inner frame and the main frame are all provided with the screw rod assemblies, so that the automatic movement of three shafts, namely up, down, front, back, left and right, is realized, and the movement is stable and the precision is high; the needle machine has reasonable structural design, realizes the omnibearing work of the needle machine and ensures the weaving quality of the carpet machine.)

1. A carpet machine characterized by: the sewing machine comprises a mesh nail frame, an outer frame, an inner frame and a main frame, wherein the mesh nail frame is fixedly connected with the outer frame, the inner frame is movably connected in the outer frame and can move left and right, the main frame is erected on the inner frame and can move up and down, and a needling machine is arranged on the main frame and can move front and back;

the needle machine comprises a machine head and a machine tail, wherein the machine tail comprises a machine base, and a rotary power device is arranged on the machine base and is connected with the machine head; the machine head comprises a machine shell, the machine shell is provided with an upper cavity and a lower cavity, a fork needle linkage device is arranged in the upper cavity and connected with a fork needle assembly, and a wire feeding needle linkage device is arranged in the lower cavity and connected with a wire feeding needle assembly; the fork needle linkage device drives the fork needle assembly to move, and the fork needle linkage device and the thread feeding needle linkage device drive the thread feeding needle assembly to move in a synchronous opposite direction; the thread feeding needle linkage device is connected with a needle feeding power device.

2. The carpet knitting machine of claim 1 wherein the feed needle linkage includes a feed needle wheel connected to a feed needle power unit, and a feed needle crankshaft link connected to a feed needle assembly; one end of the thread feeding needle crankshaft connecting rod is connected to the eccentric position of the thread feeding needle rotating wheel.

3. The carpet machine according to claim 2, characterized in that the fork needle linkage comprises a fork needle rotary disc coaxially connected with the thread feeding needle rotary wheel, and a fork needle crankshaft connecting rod mechanism connected with the fork needle assembly; the fork needle and fork needle crankshaft connecting rod mechanism comprises a fork needle crankshaft connecting rod I connected with the fork needle assembly and a fork needle crankshaft connecting rod II connected with the fork needle turntable; the fork needle crankshaft connecting rod I is movably connected with the fork needle crankshaft connecting rod II; the connection part of the fork needle turntable and the fork needle crankshaft connecting rod II is arranged at the eccentric part of the rotation center of the fork needle turntable.

4. The carpet machine according to claim 3, wherein the second fork needle crankshaft connecting rod is a triangular connecting rod, two vertex angles of the second fork needle crankshaft connecting rod are respectively connected with the first fork needle crankshaft connecting rod and the fork needle turntable, and the other vertex angle is connected with the high-low needle adjusting mechanism; the height needle adjusting mechanism comprises an adjusting connecting rod connected with a fork needle crankshaft connecting rod II, one end of the adjusting connecting rod is connected with an adjustable cam, and the adjustable cam is connected with a fine adjustment motor.

5. The carpet knitting machine of any of claims 2 to 4 wherein the needle feed power device includes a needle feed motor and a needle feed wheel, the needle feed wheel and the thread feed wheel being connected by a belt.

6. The carpet needling machine according to claim 1, wherein the rotary power device comprises a rotary motor fixed on the base, and a rotary wheel I is arranged on an output shaft of the rotary motor; the tail of the machine shell is positioned on a first positioning block on the machine base through a bearing, the tail of the machine shell is fixedly connected with a rotating shaft, the end part of the rotating shaft is connected with a second rotating wheel, and the other end of the rotating shaft is positioned on a second positioning block on the machine base through a bearing; the first rotating wheel is connected with the second rotating wheel through a belt.

7. The carpet needling machine according to claim 6, wherein a counterweight cylinder is provided in the middle of the rotating shaft.

8. The carpet machine of claim 4 wherein the fork needle assembly includes a fork needle connecting rod connected to a fork needle crankshaft connecting rod, the fork needle connecting rod being connected to the fork needle by a fork needle collet; the thread feeding needle assembly comprises a thread feeding needle connecting rod connected with a thread feeding needle crankshaft connecting rod, the thread feeding needle connecting rod is connected with a thread feeding needle rod through a thread feeding needle chuck, and the end part of the thread feeding needle rod is provided with a thread feeding needle head.

9. The carpet knitting machine according to claim 1, wherein outer frame slides are provided on the outer upper frame and the outer lower frame of the outer frame, and inner frame sliders that are fittingly connected to the outer frame slides are provided on the inner upper frame and the inner lower frame of the inner frame; two groups of long lead screw assemblies are arranged between the outer frame and the inner frame and are respectively arranged at the upper part and the lower part of the outer frame; the long lead screw component comprises a long lead screw shaft, a lead screw nut and a long lead screw motor; a long lead screw shaft is arranged between the two outer frames of the outer frame and is positioned by bearings on the two outer frames, one end of the long lead screw shaft is connected with an output shaft of a long lead screw motor arranged on the outer frames, and a lead screw nut matched with the long lead screw shaft is arranged on the inner frame;

inner frame slideways are arranged on two inner side frames of the inner frame, and a main frame sliding block which is matched and connected with the inner frame slideways is arranged on the main frame; a group of long lead screw assemblies are arranged between the inner frame and the main frame, a long lead screw shaft is arranged between an inner upper frame and an inner lower frame of the inner frame and is positioned by a bearing on the inner upper frame and the inner lower frame, one end of the long lead screw shaft is connected with an output shaft of a long lead screw motor arranged on the inner upper frame, and a lead screw nut matched with the long lead screw shaft is arranged on the main frame;

two machine frame slideways are arranged on the main machine frame, and needle machine base sliding blocks which are matched and connected with the machine frame slideways are arranged on two sides below a needle machine base of the needle machine; a group of short lead screw components are arranged between the main frame and the needle machine base, and each short lead screw component comprises a short lead screw shaft, a lead screw nut and a short lead screw motor; the main frame is provided with a short lead screw shaft which is positioned front and back through two bearings on the main frame, one end of the short lead screw shaft is connected with an output shaft of a short lead screw motor arranged on the main frame, and a lead screw nut matched with the short lead screw shaft is arranged below the needle machine base.

Technical Field

The invention relates to the technical field of carpet machinery, in particular to a carpet machine

Background

Originally, traditional carpet machine weaves through handheld hand, its inefficiency is fairly low, and patent number 201821655173.7 discloses vertical carpet machine, and has realized automatic operation, but its structure of needle machine is more complicated, and the operating efficiency is low.

Disclosure of Invention

The invention aims to provide a carpet machine, which can realize automatic operation, and has the advantages of simple structure, reasonable design, reliability and durability.

In order to achieve the purpose, the invention provides the following technical scheme:

a carpet machine comprises a net nail frame, an outer frame, an inner frame and a main frame, wherein the net nail frame is fixedly connected with the outer frame, the inner frame is movably connected in the outer frame and can move left and right, the main frame is erected on the inner frame and can move up and down, and a needling machine is arranged on the main frame and can move front and back;

the needle machine comprises a machine head and a machine tail, wherein the machine tail comprises a machine base, and a rotary power device is arranged on the machine base and is connected with the machine head; the machine head comprises a machine shell, the machine shell is provided with an upper cavity and a lower cavity, a fork needle linkage device is arranged in the upper cavity and connected with a fork needle assembly, and a wire feeding needle linkage device is arranged in the lower cavity and connected with a wire feeding needle assembly; the fork needle linkage device drives the fork needle assembly to move, and the fork needle linkage device and the thread feeding needle linkage device drive the thread feeding needle assembly to move in a synchronous opposite direction; the thread feeding needle linkage device is connected with a needle feeding power device.

The thread feeding needle linkage device comprises a thread feeding needle rotating wheel connected with a thread feeding power device and a thread feeding needle crankshaft connecting rod connected with a thread feeding needle assembly; one end of the thread feeding needle crankshaft connecting rod is connected to the eccentric position of the thread feeding needle rotating wheel.

The fork needle linkage device comprises a fork needle turntable coaxially connected with the wire feeding needle rotating wheel and a fork needle crankshaft connecting rod mechanism connected with the fork needle assembly; the fork needle and fork needle crankshaft connecting rod mechanism comprises a fork needle crankshaft connecting rod I connected with the fork needle assembly and a fork needle crankshaft connecting rod II connected with the fork needle turntable; the fork needle crankshaft connecting rod I is movably connected with the fork needle crankshaft connecting rod II; the connection part of the fork needle turntable and the fork needle crankshaft connecting rod II is arranged at the eccentric part of the rotation center of the fork needle turntable.

The second fork needle crankshaft connecting rod is a triangular connecting rod, two vertex angles of the second fork needle crankshaft connecting rod are respectively connected with the first fork needle crankshaft connecting rod and the fork needle turntable, and the other vertex angle of the second fork needle crankshaft connecting rod is connected with the high-low needle adjusting mechanism; the height needle adjusting mechanism comprises an adjusting connecting rod connected with a fork needle crankshaft connecting rod II, one end of the adjusting connecting rod is connected with an adjustable cam, and the adjustable cam is connected with a fine adjustment motor.

The needle feeding power device comprises a needle feeding motor and a needle feeding rotating wheel, and the needle feeding rotating wheel is connected with the thread feeding rotating wheel through a belt.

The rotary power device comprises a rotary motor fixed on the base, and an output shaft of the rotary motor is provided with a first rotary wheel; the tail of the machine shell is positioned on a first positioning block on the machine base through a bearing, the tail of the machine shell is fixedly connected with a rotating shaft, the end part of the rotating shaft is connected with a second rotating wheel, and the other end of the rotating shaft is positioned on a second positioning block on the machine base through a bearing; the first rotating wheel is connected with the second rotating wheel through a belt.

And the middle part of the rotating shaft is provided with a counterweight cylinder.

The fork needle assembly comprises a fork needle connecting rod connected with a fork needle crankshaft connecting rod I, and the fork needle connecting rod is connected with a fork needle through a fork needle chuck; the thread feeding needle assembly comprises a thread feeding needle connecting rod connected with a thread feeding needle crankshaft connecting rod, the thread feeding needle connecting rod is connected with a thread feeding needle rod through a thread feeding needle chuck, and the end part of the thread feeding needle rod is provided with a thread feeding needle head.

The outer upper frame and the outer lower frame of the outer frame are provided with outer frame slideways, and the inner upper frame and the inner lower frame of the inner frame are provided with inner frame sliding blocks which are matched and connected with the outer frame slideways; two groups of long lead screw assemblies are arranged between the outer frame and the inner frame and are respectively arranged at the upper part and the lower part of the outer frame; the long lead screw component comprises a long lead screw shaft, a lead screw nut and a long lead screw motor; a long lead screw shaft is arranged between the two outer frames of the outer frame and is positioned by bearings on the two outer frames, one end of the long lead screw shaft is connected with an output shaft of a long lead screw motor arranged on the outer frames, and a lead screw nut matched with the long lead screw shaft is arranged on the inner frame;

inner frame slideways are arranged on two inner side frames of the inner frame, and a main frame sliding block which is matched and connected with the inner frame slideways is arranged on the main frame; a group of long lead screw assemblies are arranged between the inner frame and the main frame, a long lead screw shaft is arranged between an inner upper frame and an inner lower frame of the inner frame and is positioned by a bearing on the inner upper frame and the inner lower frame, one end of the long lead screw shaft is connected with an output shaft of a long lead screw motor arranged on the inner upper frame, and a lead screw nut matched with the long lead screw shaft is arranged on the main frame;

two machine frame slideways are arranged on the main machine frame, and needle machine base sliding blocks which are matched and connected with the machine frame slideways are arranged on two sides below a needle machine base of the needle machine; a group of short lead screw components are arranged between the main frame and the needle machine base, and each short lead screw component comprises a short lead screw shaft, a lead screw nut and a short lead screw motor; the main frame is provided with a short lead screw shaft which is positioned front and back through two bearings on the main frame, one end of the short lead screw shaft is connected with an output shaft of a short lead screw motor arranged on the main frame, and a lead screw nut matched with the short lead screw shaft is arranged below the needle machine base.

The invention realizes the three-axis motion of up, down, front, back, left and right by the screw transmission and slide block matching mode, and has stable motion and high precision. The needle machine realizes the automatic operation of the carpet machine by controlling the rotary power device and the needle feeding power device; through the motion matching of the fork needle component and the yarn feeding needle component in opposite directions, after the yarn feeding needle component feeds the yarn into the carpet backing fabric, when the yarn feeding needle component withdraws, the fork needle component moves in the opposite direction to fork the yarn and leave the yarn on the carpet backing fabric, and the process is repeated, and after the carpet backing fabric is fully implanted with the yarn, the carpet is manufactured. Meanwhile, the linkage device is arranged in the same shell, and the structural design and the arrangement are reasonable. According to the height needle adjusting mechanism, the fine adjustment motor controls the adjustable cam to rotate, the adjustable cam drives the adjusting connecting rod to move, and the maximum stroke of the fork needle assembly is changed through linkage of the fork needle crankshaft triangular connecting rod and the fork needle crankshaft connecting rod, so that the height of fluff implanted into a carpet is adjusted.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic view of the structure of the needle sewing machine of the present invention.

FIG. 3 is a schematic top view of the internal structure of the upper chamber of the housing of the knitting machine according to the present invention;

FIG. 4 is a schematic bottom view of the inner structure of the lower chamber of the housing of the knitting machine of the present invention;

fig. 5 is an enlarged schematic view of E in fig. 2.

FIG. 6 is an enlarged view of the point A in FIG. 1;

FIG. 7 is an enlarged view of the point B in FIG. 1;

FIG. 8 is a schematic view of the backside structure of the present invention;

FIG. 9 is an enlarged view of FIG. 8 at C;

FIG. 10 is an enlarged view of FIG. 8 at D;

FIG. 11 is a schematic view of the main frame of the present invention engaged with a needling machine;

fig. 12 is a schematic view of the structure below the needle bed in fig. 11.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 12, in an embodiment of the present invention, a carpet machine includes a net nail frame, an outer frame, an inner frame and a main frame, the net nail frame is fixedly connected to the outer frame, the inner frame is movably connected in the outer frame and can move left and right, the main frame is erected on the inner frame and can move up and down, and a needling machine is arranged on the main frame and can move back and forth;

the needle machine comprises a machine head and a machine tail, wherein the machine tail comprises a machine base, and a rotary power device is arranged on the machine base and is connected with the machine head; the machine head comprises a machine shell, the machine shell is provided with an upper cavity and a lower cavity, a fork needle linkage device is arranged in the upper cavity and connected with a fork needle assembly, and a wire feeding needle linkage device is arranged in the lower cavity and connected with a wire feeding needle assembly; the fork needle linkage device drives the fork needle assembly to move, and the fork needle linkage device and the thread feeding needle linkage device drive the thread feeding needle assembly to move in a synchronous opposite direction; the thread feeding needle linkage device is connected with a needle feeding power device.

The thread feeding needle linkage device comprises a thread feeding needle rotating wheel connected with a thread feeding power device and a thread feeding needle crankshaft connecting rod connected with a thread feeding needle assembly; one end of the thread feeding needle crankshaft connecting rod is connected to the eccentric position of the thread feeding needle rotating wheel.

The fork needle linkage device comprises a fork needle turntable coaxially connected with the wire feeding needle rotating wheel and a fork needle crankshaft connecting rod mechanism connected with the fork needle assembly; the fork needle and fork needle crankshaft connecting rod mechanism comprises a fork needle crankshaft connecting rod I connected with the fork needle assembly and a fork needle crankshaft connecting rod II connected with the fork needle turntable; the fork needle crankshaft connecting rod I is movably connected with the fork needle crankshaft connecting rod II; the connection part of the fork needle turntable and the fork needle crankshaft connecting rod II is arranged at the eccentric part of the rotation center of the fork needle turntable.

The second fork needle crankshaft connecting rod is a triangular connecting rod, two vertex angles of the second fork needle crankshaft connecting rod are respectively connected with the first fork needle crankshaft connecting rod and the fork needle turntable, and the other vertex angle of the second fork needle crankshaft connecting rod is connected with the high-low needle adjusting mechanism; the height needle adjusting mechanism comprises an adjusting connecting rod connected with a fork needle crankshaft connecting rod II, one end of the adjusting connecting rod is connected with an adjustable cam, and the adjustable cam is connected with a fine adjustment motor.

The needle feeding power device comprises a needle feeding motor and a needle feeding rotating wheel, and the needle feeding rotating wheel is connected with the thread feeding rotating wheel through a belt.

The rotary power device comprises a rotary motor fixed on the base, and an output shaft of the rotary motor is provided with a first rotary wheel; the tail of the machine shell is positioned on a first positioning block on the machine base through a bearing, the tail of the machine shell is fixedly connected with a rotating shaft, the end part of the rotating shaft is connected with a second rotating wheel, and the other end of the rotating shaft is positioned on a second positioning block on the machine base through a bearing; the first rotating wheel is connected with the second rotating wheel through a belt.

And the middle part of the rotating shaft is provided with a counterweight cylinder.

The fork needle assembly comprises a fork needle connecting rod connected with a fork needle crankshaft connecting rod I, and the fork needle connecting rod is connected with a fork needle through a fork needle chuck; the thread feeding needle assembly comprises a thread feeding needle connecting rod connected with a thread feeding needle crankshaft connecting rod, the thread feeding needle connecting rod is connected with a thread feeding needle rod through a thread feeding needle chuck, and the end part of the thread feeding needle rod is provided with a thread feeding needle head.

The outer upper frame and the outer lower frame of the outer frame are provided with outer frame slideways, and the inner upper frame and the inner lower frame of the inner frame are provided with inner frame sliding blocks which are matched and connected with the outer frame slideways; two groups of long lead screw assemblies are arranged between the outer frame and the inner frame and are respectively arranged at the upper part and the lower part of the outer frame; the long lead screw component comprises a long lead screw shaft, a lead screw nut and a long lead screw motor; a long lead screw shaft is arranged between the two outer frames of the outer frame and is positioned by bearings on the two outer frames, one end of the long lead screw shaft is connected with an output shaft of a long lead screw motor arranged on the outer frames, and a lead screw nut matched with the long lead screw shaft is arranged on the inner frame;

inner frame slideways are arranged on two inner side frames of the inner frame, and a main frame sliding block which is matched and connected with the inner frame slideways is arranged on the main frame; a group of long lead screw assemblies are arranged between the inner frame and the main frame, a long lead screw shaft is arranged between an inner upper frame and an inner lower frame of the inner frame and is positioned by a bearing on the inner upper frame and the inner lower frame, one end of the long lead screw shaft is connected with an output shaft of a long lead screw motor arranged on the inner upper frame, and a lead screw nut matched with the long lead screw shaft is arranged on the main frame;

two machine frame slideways are arranged on the main machine frame, and needle machine base sliding blocks which are matched and connected with the machine frame slideways are arranged on two sides below a needle machine base of the needle machine; a group of short lead screw components are arranged between the main frame and the needle machine base, and each short lead screw component comprises a short lead screw shaft, a lead screw nut and a short lead screw motor; the main frame is provided with a short lead screw shaft which is positioned front and back through two bearings on the main frame, one end of the short lead screw shaft is connected with an output shaft of a short lead screw motor arranged on the main frame, and a lead screw nut matched with the short lead screw shaft is arranged below the needle machine base.

The principle of the invention is as follows: the carpet base fabric to be woven is hung on the net nail frame 4, and the carpet can be woven by moving the needle machine 5 and starting the needle machine to work.

For the moving needle machine, the invention realizes the left-right movement, the up-down movement and the front-back movement.

By starting two groups of long lead screw assemblies 6 for connecting the outer frame 1 and the inner frame 2 and working long lead screw motors 6-3 arranged on the outer side frames 1-3, long lead screw shafts 6-1 of the two groups of long lead screw assemblies 6 rotate, and the inner frame moves left and right along with the long lead screw shafts 6-1 of the two groups of long lead screw assemblies 6 due to the matching of lead screw nuts 6-2 on the inner upper frame 2-1 and the inner lower frame 2-2 of the inner frame 2; meanwhile, the inner upper frame 2-1 of the inner frame 2 and the inner frame slide block 2-5 on the inner lower frame 2-2 move along the outer upper frame 1-1 of the outer frame 1 and the outer frame slide way 1-4 on the outer lower frame 1-2;

by starting the long lead screw assembly 6 for connecting the inner frame 2 and the main frame 3, the long lead screw motor 6-3 arranged on the inner upper frame 2-1 works, the long lead screw shaft 6-1 of the group of long lead screw assemblies 6 rotates, and the main frame 3 moves up and down along with the long lead screw shaft 6-1 of the group of long lead screw assemblies 6 due to the matching of the lead screw nut 6-2 on the main frame 3; meanwhile, a main frame sliding block 3-5 on the main frame 3 moves along inner frame sliding ways 2-4 of two inner side frames 2-3 of the inner frame 2;

by starting the short lead screw component 7 which connects the main frame 3 and the needle base 5-1, the short lead screw motor 7-3 arranged on the main frame 3 works, the short lead screw shaft 7-1 of the group of short lead screw components 7 rotates, and the needle base 5-1 moves back and forth along with the short lead screw shaft 7-1 of the group of short lead screw components 7 due to the matching of the lead screw nut 6-2 below the needle base 5-1; meanwhile, the needle bed sliding block 5-2 below the needle bed 5-1 moves along the machine frame slide rail 3-4 on the main machine frame 3.

For the operation of the knitting machine, according to the knitting direction of the carpet machine, the fork needle 1.3.3 and the thread feeding needle head 1.5.4 of the needle machine head 1 need to keep a straight line direction with the knitting direction of the carpet machine, so the machine head of the carpet machine needs to be adjusted at any time along with the knitting direction of the carpet machine, therefore, the rotating power device 2.2 is needed to adjust the needle machine head 1, the rotating motor 2.2.1 rotates the first rotating wheel 2.2.2, the belt drives the second rotating wheel 2.2.4 to rotate, the rotating shaft 2.2.3 rotates along with the rotating power device, and meanwhile, the machine head 1 connected with the rotating shaft 2.2.3 rotates along with the rotating power device.

When the knitting machine is operated, the fork needle assembly 1.3 is matched with the yarn feeding needle assembly 1.5 in the opposite directions in a moving mode, after the yarn feeding needle head 1.5.4 of the yarn feeding needle assembly 1.5 feeds the yarn into the carpet backing fabric, when the yarn feeding needle assembly 1.5 withdraws, the fork needle 1.3.3 of the fork needle assembly 1.3 moves in the opposite direction to fork the yarn and retain the yarn on the carpet backing fabric, and the process is repeated, and after the yarn is planted on the carpet backing fabric, the carpet is manufactured. The fork needle assembly 1.3 is driven by the fork needle linkage device 1.2, the fork needle linkage device 1.2 is driven by the needle feeding power device 1.6, meanwhile, as the fork needle turntable 1.2.1 of the fork needle linkage device 1.2 is coaxially connected with the thread feeding needle rotating wheel 1.4.1 of the thread feeding needle linkage device 1.4, the thread feeding needle linkage device 1.4 acts along with the fork needle linkage device 1.2, and simultaneously, the thread feeding needle linkage device 1.4 drives the thread feeding needle assembly 1.5; due to the structural arrangement of the fork needle linkage 1.2 and the thread feeding needle linkage 1.4, the fork needle assembly 1.2 and the thread feeding needle assembly 1.5 move in opposite directions.

According to the length of the pile woven by the carpet, the maximum stroke of the fork needle assembly 1.2 needs to be adjusted, the adjustable cam 1.7.2 rotates along with the adjustment of the fine adjustment motor 1.7.3, so that the position of a connecting point of the adjustment connecting rod 1.7.1 and the adjustable cam 1.7.2 is changed, and when the fork needle turntable 1.2.1 rotates to drive the triangular connecting rod 1.2.3 to act, the maximum stroke of the fork needle connecting rod 1.3.1 of the fork needle assembly 1.3 linearly acts along a through hole at the front end of the machine shell 1.1 is changed by adjusting the linkage relation of the adjusting connecting rod 1.7.1, the triangular connecting rod 1.2.3, the fork needle crankshaft connecting rod I1.2 and the fork needle assembly 1.3.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.