阅读说明：本技术 一种纺织加工用手工缝纫穿线设备 (Hand sewing threading equipment for textile processing ) 是由 黄浩 于 2021-08-19 设计创作，主要内容包括：本发明涉及一种穿线设备,尤其涉及一种纺织加工用手工缝纫穿线设备。本发明提供一种快速穿线、自动固定和自动夹紧的纺织加工用手工缝纫穿线设备。一种纺织加工用手工缝纫穿线设备,包括有：底座和支撑架,底座上部设有支撑架；第一固定杆,底座上部中部设有第一固定杆；缝纫线,第一固定杆上安装有缝纫线。本发明通过设有固定机构,固定机构与夹紧机构配合,使用者首先把针头从底座上向后推动至固定机构内,固定机构运作会将针头需要穿线的孔位于缝纫线的正下方,缝纫线和夹紧机构向下运动会穿过针头,从而实现纺织加工用手工缝纫穿线工作,同时使夹紧机构运作夹紧上部的缝纫线；同时也实现对上部的缝纫线进行夹紧工作。(The invention relates to threading equipment, in particular to manual sewing and threading equipment for textile processing. The invention provides a manual sewing and threading device for textile processing, which can be used for rapid threading, automatic fixing and automatic clamping. A hand sewing threading device for textile processing comprises: the upper part of the base is provided with a support frame; the middle part of the upper part of the base is provided with a first fixed rod; sewing thread, the last sewing thread of installing of first dead lever. According to the invention, the fixing mechanism is arranged and matched with the clamping mechanism, a user firstly pushes the needle head backwards from the base into the fixing mechanism, the hole of the needle head needing threading is positioned right below the sewing thread when the fixing mechanism operates, the sewing thread and the clamping mechanism move downwards and can penetrate through the needle head, thus the manual sewing threading work for textile processing is realized, and meanwhile, the clamping mechanism operates to clamp the upper sewing thread; and simultaneously, the clamping work of the upper sewing thread is realized.)

1. A hand sewing threading equipment for textile processing is characterized by comprising:

the device comprises a base (1) and a support frame (2), wherein the support frame (2) is arranged at the upper part of the base (1);

the middle part of the upper part of the base (1) is provided with a first fixed rod (3);

the sewing machine comprises a sewing thread (4), wherein the sewing thread (4) is installed on a first fixing rod (3);

the first pulley (5) is arranged at two parts of the upper part of the support frame (2);

the fixing mechanism (6) is arranged at the upper part of the base (1);

the clamping mechanism (7) is arranged on the sewing thread (4), and the clamping mechanism (7) is connected with the support frame (2) in a sliding manner.

2. A hand-threading device for textile processing according to claim 1, characterised in that the fixing means (6) comprise:

the two parts of the upper part of the base (1) are provided with first sliding rods (62);

the first sliding plate (61) is connected between the two first sliding rods (62) in a sliding manner, and the first sliding plate (61) is connected with the base (1) in a sliding manner;

the first spring (63) is wound on the first sliding rod (62), and the first spring (63) is connected between the first sliding plate (61) and the base (1);

a needle head protecting frame (64), and the upper part of the base (1) is provided with the needle head protecting frame (64) in a sliding way.

3. A hand-sewing threading device for textile processing according to claim 2, characterised in that the clamping mechanism (7) comprises:

the sewing machine comprises a first magnetic block (71), wherein the first magnetic block (71) is arranged on a sewing thread (4) in a sliding manner;

the second sliding rod (72) is arranged on each of two sides of the first magnetic block (71) in a sliding mode;

the second spring (73) is wound on the second sliding rod (72), and the second spring (73) is connected between the first magnetic block (71) and the second sliding rod (72);

the lower parts of the first magnetic blocks (71) are uniformly provided with first limiting blocks (74), and the number of the first limiting blocks (74) is four.

4. A hand-threading device for textile processing according to claim 3, characterised in that it further comprises a lifting mechanism (8), the lifting mechanism (8) comprising:

the motor (81) is installed on the upper part of the support frame (2);

a reel (82), wherein the output shaft of the motor (81) is provided with the reel (82);

the upper part of the first pulley (5) is rotatably provided with the second pulley (83);

a pull rope (84), the reel (82) is connected with the pull rope (84);

the bottom of the pull rope (84) is connected with the second magnetic block (85), the second magnetic block (85) is matched with the first magnetic block (71), the second magnetic block (85) is connected with the sewing thread (4) in a sliding mode, and the pull rope (84) winds the second pulley (83).

5. The hand sewing and threading device for textile processing according to claim 4, characterized in that it further comprises a receiving mechanism (9), the receiving mechanism (9) comprises:

a second fixing rod (91), wherein the second fixing rod (91) is connected between the two sides of the lower part of the base (1);

an outer frame (92), wherein the upper part of the second fixing rod (91) is provided with the outer frame (92);

the first fixing plate (93) is arranged on two sides of the upper part of the base (1) in a sliding manner;

the clamping plates (95) are arranged on two sides of the upper part of the outer frame (92) in a sliding mode, and the clamping plates (95) on the same side are connected with the first fixing plates (93) on the same side;

and the third spring (94) is wound on the clamping plate (95), and the third spring (94) is connected between the outer frame (92) and the first fixing plate (93).

6. The hand sewing and threading device for textile processing according to claim 5, characterized in that it further comprises a blocking mechanism (10), the blocking mechanism (10) comprises:

four third fixing rods (101) are uniformly arranged on the outer frame (92);

the second limiting blocks (103) are arranged on the four third fixing rods (101) in a sliding mode, and the second limiting blocks (103) on the same side are matched with the clamping plates (95) on the same side;

the fourth spring (102) is wound on the third fixing rod (101), the fourth spring (102) is connected between the outer frame (92) and the second limiting block (103), and the second limiting block (103) on the same side is matched with the first limiting block (74) on the same side.

7. A hand sewing and threading device for textile processing according to claim 6, characterized in that it further comprises a discharge mechanism (11), the discharge mechanism (11) comprising:

a third sliding rod (111), wherein the upper part of the base (1) is provided with the third sliding rod (111) in a sliding manner;

a third limiting block (113), the bottom of the needle head protection frame (64) is provided with the third limiting block (113), and the third sliding rod (111) is connected with the third limiting block (113);

a fifth spring (112) is wound on the third sliding rod (111), and the fifth spring (112) is connected between the base (1) and a third limiting block (113);

the fourth fixing rod (114) is arranged at two parts of the upper part of the base (1) in a sliding manner;

the inner sides of the two fourth fixing rods (114) are respectively provided with a fourth limiting block (116), and the two fourth limiting blocks (116) are matched with the third limiting block (113);

the sixth spring (115) is wound on the fourth fixing rod (114), the sixth spring (115) is connected between the fourth limiting block (116) and the base (1), and the fourth limiting block (116) on the same side is matched with the first fixing plate (93) on the same side.

8. A hand sewing and threading device for textile processing according to claim 6, characterised in that the fifth spring (112) is made of an alloy.

Technical Field

The invention relates to threading equipment, in particular to manual sewing and threading equipment for textile processing.

Background

The textile industry is an industry with high labor intensity and large external dependence in China, China is the biggest textile garment production and export country in the world, the continuous and stable growth of textile garment export is crucial to guarantee foreign exchange storage in China, solve social employment and sustainable development of the textile industry, before weaving, a needle head needs to be threaded, and a sewing machine is a machine which uses one or more sewing threads to form one or more stitches on a sewing material and enables one or more layers of sewing materials to be interwoven or sewed; the existing sewing machine is not provided with an automatic threading device, manual threading is needed under the conditions of thread breakage, needle breakage and the like, time and labor are wasted, and the sewing machine especially causes great trouble for people with poor eyesight or the old.

Therefore, the manual sewing threading device for the textile processing is designed, and the threading device is rapid in threading, automatic in fixing and automatic in clamping.

Disclosure of Invention

In order to overcome the problem that the needle head needs to be threaded before weaving, a sewing machine is a machine which uses one or more sewing threads to form one or more stitches on a sewing material and interweaves or sews one or more layers of the sewing material; there is not automatic threading device on present sewing machine, all needs manual threading under the condition such as taking place broken string, broken needle, wastes time and energy, especially causes the shortcoming of very big puzzlement to the not good people of eyesight or old person, and the technical problem is: provides a hand-operated sewing and threading device for textile processing, which has the advantages of rapid threading, automatic fixing and automatic clamping.

The technical scheme is as follows: a hand sewing threading device for textile processing comprises:

the upper part of the base is provided with a support frame;

the middle part of the upper part of the base is provided with a first fixed rod;

the first fixing rod is provided with a sewing thread;

the two parts of the upper part of the support frame are provided with first pulleys;

the upper part of the base is provided with a fixing mechanism;

and the clamping mechanism is arranged on the sewing thread and is connected with the support frame in a sliding manner.

Preferably, the fixing mechanism includes:

the two parts of the upper part of the base are provided with first sliding rods;

the first sliding plate is connected between the two first sliding rods in a sliding manner and is connected with the base in a sliding manner;

the first spring is wound on the first sliding rod and connected between the first sliding plate and the base;

a needle head protecting frame is arranged on the upper part of the base in a sliding way.

Preferably, the clamping mechanism includes:

the sewing thread is provided with a first magnetic block in a sliding manner;

the second slide bars are arranged on two sides of the first magnetic block in a sliding manner;

the second spring is wound on the second sliding rod and connected between the first magnetic block and the second sliding rod;

the lower part of the first magnetic block is uniformly provided with four first limiting blocks.

Preferably, the apparatus further comprises a lifting mechanism, wherein the lifting mechanism comprises:

the motor is arranged on the upper part of the support frame;

the output shaft of the motor is provided with a winding wheel;

the upper part of the first pulley is rotatably provided with a second pulley;

the pull rope is connected to the winding wheel;

the bottom of the pull rope is connected with a second magnetic block, the second magnetic block is matched with the first magnetic block, the second magnetic block is connected with the sewing thread in a sliding mode, and the pull rope winds the second pulley.

Preferably, still including receiving mechanism, receiving mechanism is including:

the second fixed rod is connected between the two sides of the lower part of the base;

the outer frame is arranged at the upper part of the second fixed rod;

the two sides of the upper part of the base are both provided with a first fixing plate in a sliding way;

the clamping plates are arranged on two sides of the upper part of the outer frame in a sliding mode, and the clamping plates on the same side are connected with the first fixing plates on the same side;

and the third spring is wound on the clamping plate and connected between the outer frame and the first fixing plate.

Preferably, the device further comprises a clamping mechanism, wherein the clamping mechanism comprises:

four third fixing rods are uniformly arranged on the outer frame;

the second limiting blocks are arranged on the four third fixing rods in a sliding mode, and the second limiting blocks on the same side are matched with the clamping plates on the same side;

and the fourth spring is wound on the third fixed rod and connected between the outer frame and the second limiting block, and the second limiting block on the same side is matched with the first limiting block on the same side.

Preferably, the device also comprises a discharging mechanism, wherein the discharging mechanism comprises:

the upper part of the base is provided with a third sliding rod in a sliding way;

the third limiting block is arranged at the bottom of the needle head protective frame, and the third sliding rod is connected with the third limiting block;

the third sliding rod is wound with a third spring, and the third spring is connected between the base and a third limiting block;

the fourth fixed rods are arranged at two parts of the upper part of the base in a sliding manner;

the inner sides of the two fourth fixing rods are respectively provided with a fourth limiting block, and the two fourth limiting blocks are matched with the third limiting block;

and the sixth spring is wound on the fourth fixed rod and connected between the fourth limiting block and the base, and the fourth limiting block on the same side is matched with the first fixed plate on the same side.

Preferably, the fifth spring is made of an alloy.

The beneficial effects are that: 1. according to the invention, the fixing mechanism is arranged and matched with the clamping mechanism, a user firstly pushes the needle head backwards from the base into the fixing mechanism, the hole of the needle head needing threading is positioned right below the sewing thread when the fixing mechanism operates, the sewing thread and the clamping mechanism move downwards and can penetrate through the needle head, thus the manual sewing threading work for textile processing is realized, and meanwhile, the clamping mechanism operates to clamp the upper sewing thread; meanwhile, the clamping work of the sewing thread at the upper part is realized;

2. the lifting mechanism is matched with the material receiving mechanism, the clamping plate can clamp the sewing thread passing through the needle head, the automatic clamping work of the sewing thread passing through the needle head is realized, and the manual operation is reduced;

3. the ascending mechanism is matched with the discharging mechanism, the clamping plate can be clamped by the second limiting block at the moment, and the clamping plate moves outwards to clamp the sewing thread passing through the needle head next time.

Drawings

Fig. 1 is a schematic perspective view of a first part of the present invention.

Fig. 2 is a schematic perspective view of a second part of the present invention.

Fig. 3 is a third partial perspective view of the present invention.

Fig. 4 is a perspective view of a fourth part of the present invention.

Fig. 5 is a schematic perspective view of a fifth part of the present invention.

Fig. 6 is a perspective view of a sixth part of the present invention.

Fig. 7 is a perspective view of a first portion of the fastening mechanism of the present invention.

Fig. 8 is a perspective view of a second portion of the fastening mechanism of the present invention.

Fig. 9 is a perspective view of a third portion of the fastening mechanism of the present invention.

Fig. 10 is a perspective view of a first part of the clamping mechanism of the present invention.

Fig. 11 is an enlarged perspective view of a first portion of the clamping mechanism of the present invention.

Fig. 12 is a perspective view of a second part of the clamping mechanism of the present invention.

Fig. 13 is a schematic perspective view of a first part of the lifting mechanism of the present invention.

Fig. 14 is a perspective view of a second part of the lifting mechanism of the present invention.

Fig. 15 is an enlarged perspective view of a second part of the lift mechanism of the present invention.

Fig. 16 is a schematic perspective view of a first part of a receiving mechanism of the present invention.

Fig. 17 is a schematic enlarged perspective view of a first part of the receiving mechanism of the present invention.

Fig. 18 is a schematic perspective view of a second part of the receiving mechanism of the present invention.

Fig. 19 is a schematic perspective view of a first part of the locking mechanism of the present invention.

Fig. 20 is a schematic perspective view of a second part of the locking mechanism of the present invention.

Fig. 21 is a schematic perspective view of the discharging mechanism of the present invention.

Fig. 22 is an enlarged perspective view of the discharging mechanism of the present invention.

Part names and serial numbers in the figure: 1_ base, 2_ support frame, 3_ first fixing rod, 4_ sewing thread, 5_ first pulley, 6_ fixing mechanism, 61_ first sliding plate, 62_ first sliding rod, 63_ first spring, 64_ needle protection frame, 7_ clamping mechanism, 71_ first magnetic block, 72_ second sliding rod, 73_ second spring, 74_ first limiting block, 8_ lifting mechanism, 81_ motor, 82_ reel, 83_ second pulley, 84_ pull rope, 85_ second magnetic block, 9_ receiving mechanism, 91_ second fixing rod, 92_ outer frame, 93_ first fixing plate, 94_ third spring, 95_ splint, 10_ clamping mechanism, 101_ third fixing rod, 102_ fourth spring, 103_ second limiting block, 11_ discharging mechanism, 111_ third sliding rod, 112_ fifth spring, 113_ third limiting block, 114_ fourth fixing rod, 115_ sixth spring, 116_ fourth limiting block.

Detailed Description

The technical scheme of the invention is further explained by combining the attached drawings.

Example 1

The utility model provides a textile processing is with manual sewing threading equipment, as shown in fig. 1-12, including base 1, support frame 2, first dead lever 3, sewing thread 4, first pulley 5, fixed establishment 6 and clamping mechanism 7, base 1 upper portion rear side is equipped with support frame 2, base 1 upper portion rear side middle part is equipped with first dead lever 3, install sewing thread 4 on the first dead lever 3, support frame 2 upper portion front side left and right sides all is equipped with first pulley 5, base 1 upper portion front side is equipped with fixed establishment 6, be equipped with clamping mechanism 7 on the sewing thread 4, clamping mechanism 7 and support frame 2 sliding connection.

When the manual sewing threading is used for textile processing, the equipment can be used, a user firstly pushes the needle head backwards from the base 1 to the fixing mechanism 6, the fixing mechanism 6 operates to enable the hole of the needle head to be threaded to be positioned right below the sewing thread 4, at the moment, under the gravity of the clamping mechanism 7, thereby driving the sewing thread 4 to move downwards and simultaneously unwind, the sewing thread 4 and the clamping mechanism 7 move downwards to penetrate through the needle head, thereby realizing the manual sewing and threading work for textile processing, enabling a user to operate the clamping mechanism 7 to not clamp the sewing thread 4, meanwhile, the clamping mechanism 7 is operated to clamp the upper sewing thread 4, then a user holds the sewing thread 4 passing through the needle head and takes out the needle head forwards, the needle head is taken out till the needle head is contacted with the unfixed mechanism 6, the fixed mechanism 6 automatically resets, and the user can repeat the steps again to realize the manual sewing and threading work for textile processing.

The fixing mechanism 6 comprises a first sliding plate 61, a first sliding rod 62, a first spring 63 and a needle head protection frame 64, the left and right parts of the front side of the upper part of the base 1 are respectively provided with the first sliding rod 62, the first sliding plate 61 is connected between the two first sliding rods 62 in a sliding manner, the first sliding plate 61 is connected with the base 1 in a sliding manner, the first sliding rod 62 is wound with the first spring 63, the first spring 63 is connected between the first sliding plate 61 and the base 1, and the front side of the upper part of the base 1 is movably provided with the needle head protection frame 64.

The user firstly pushes the needle back from the base 1 to the first sliding plate 61 in, the needle pushes the first sliding plate 61 to move upwards at the same time, the first spring 63 is stretched, the needle moves back to contact with the needle protection frame 64, the user then pushes the needle and the needle protection frame 64 to move back to a fixed position together, the hole where the needle needs to be threaded is located under the sewing thread 4, the sewing thread 4 moves down to pass through the needle, thereby realizing the fixing work of the needle, then the user holds the sewing thread 4 passing through the needle with hands, the needle is taken out forward to not contact with the first sliding plate 61, under the action of the first spring 63, the first sliding rod 62 resets to drive the first sliding plate 61 to move down to reset, and the user can reset the needle protection frame 64.

The clamping mechanism 7 comprises a first magnetic block 71, a second sliding rod 72, a second spring 73 and first limiting blocks 74, the first magnetic block 71 is arranged on the sewing thread 4 in a sliding mode, the second sliding rod 72 is arranged on the front side and the rear side of the first magnetic block 71 in a sliding mode, the second spring 73 is wound on the second sliding rod 72, the second spring 73 is connected between the first magnetic block 71 and the second sliding rod 72, the first limiting blocks 74 are evenly arranged on the lower portion of the first magnetic block 71, and the number of the first limiting blocks 74 is four.

The sewing thread 4, the second slide bar 72, the second spring 73 and the first limit block 74 are driven to move downwards to penetrate through the needle head by the downward movement of the first magnetic block 71, then the user fixes the sewing thread 4 penetrating through the needle head, the user drives the second slide bar 72 to move outwards, the second spring 73 is compressed, the second slide bar 72 cannot clamp the sewing thread 4, the first magnetic block 71 moves upwards, the second slide bar 72, the second spring 73 and the first limit block 74 are driven to move upwards to the upper sewing thread 4, the second spring 73 is reset by loosening the second slide bar 72, the second slide bar 72 is driven to move inwards by the second spring 73 to clamp the sewing thread 4, and the clamping work of the sewing thread 4 is realized.

Example 2

In addition to embodiment 1, as shown in fig. 2, 5, 6, 13, 14, 15, 16, 17, 18, 19, 20, 21 and 22, the lifting mechanism 8 further includes a motor 81, a reel 82, a second pulley 83, a pull rope 84 and a second magnetic block 85, the motor 81 is mounted on the front side of the upper portion of the support frame 2, the reel 82 is mounted on the output shaft of the motor 81, the second pulley 83 is rotatably mounted on the front side of the upper portion of the right first pulley 5, the pull rope 84 is connected to the reel 82, the second magnetic block 85 is connected to the bottom of the pull rope 84, the second magnetic block 85 is engaged with the first magnetic block 71, the second magnetic block 85 is slidably connected to the sewing thread 4, and the pull rope 84 is wound around the second pulley 83.

After the needle is punched, a user starts the motor 81, an output shaft of the motor 81 rotates to drive the reel 82 to rotate, the reel 82 unwinds the pull rope 84 to drive the second pulley 83 to rotate, meanwhile, the pull rope 84 drives the second magnet 85 to move downwards, the second magnet 85 is electrified and attracted with the first magnet 71, meanwhile, the second magnet 85 moves downwards to push the second slide bar 72 to move outwards, the second spring 73 is compressed, at the moment, the second slide bar 72 cannot clamp the sewing thread 4, at the moment, the motor 81 is controlled to rotate reversely, the output shaft of the motor 81 rotates reversely to drive the second pulley 83 to rotate reversely, so that the pull rope 84 is wound, the pull rope 84 drives the reel 82 to rotate reversely, at the same time, the pull rope 84 drives the second magnet 85, the first magnet 71, the second slide bar 72, the second spring 73 and the first limiting block 74 to move upwards to a certain position to the upper part of the sewing thread 4, and then the motor 81 is turned off, when other needles need threading, the first magnetic block 71 and the second magnetic block 85 are powered off, and automatically move downwards under the gravity of the first magnetic block 71, so that the second sliding rod 72, the second spring 73 and the first limiting block 74 are driven to move downwards, the second sliding rod 72 moves downwards until the second sliding rod is not in contact with the second magnetic block 85, the second spring 73 resets to drive the second sliding rod 72 to move inwards to reset to block the sewing thread 4, and the second sliding rod 72 moves downwards to drive the sewing thread 4 to move downwards to penetrate through the needles.

Still including receiving mechanism 9, receiving mechanism 9 is including second dead lever 91, frame 92, first fixed plate 93, third spring 94 and splint 95, be connected with second dead lever 91 between the two parts about the base 1 lower part front side, second dead lever 91 upper portion is equipped with frame 92, the equal slidingtype in base 1 front side upper portion left and right sides is equipped with first fixed plate 93, the equal slidingtype in frame 92 upper portion left and right sides is equipped with splint 95, the splint 95 of homonymy is connected with the first fixed plate 93 of homonymy, around having third spring 94 on the splint 95, third spring 94 connects between frame 92 and first fixed plate 93.

The first magnet 71 moves downwards to drive the sewing thread 4 to move downwards to be close to the outer frame 92, a user pulls the first fixing plate 93 to move outwards so as to drive the clamping plates 95 to move outwards, the third spring 94 is stretched, the sewing thread 4 continues to move downwards and passes between the two clamping plates 95, the user releases the first fixing plate 93 to reset the third spring 94, the third spring 94 resets to drive the first fixing plate 93 and the clamping plates 95 to move inwards to reset, the clamping plates 95 clamp the sewing thread 4 passing through the needle, the user does not need to pull the sewing thread 4 on the needle, if the needle with the threading is required to be taken out, the user drives the first fixing plate 93 to move outwards so as to drive the clamping plates 95 to move outwards, the third spring 94 is stretched so as to take out the needle with the threading, the user releases the first fixing plate 93 to reset the third spring 94, the third spring 94 resets to drive the first fixing plate 93 and the clamping plates 95 to move inwards to reset, the clamping work of the sewing thread 4 passing through the needle head is realized.

Still including screens mechanism 10, screens mechanism 10 is including third dead lever 101, fourth spring 102 and second stopper 103, evenly be equipped with four third dead levers 101 on the frame 92, all the slidingtype is equipped with second stopper 103 on four third dead levers 101, homonymy second stopper 103 cooperates with the splint 95 of homonymy, it has fourth spring 102 to wind on the third dead lever 101, fourth spring 102 connects between frame 92 and second stopper 103, the second stopper 103 of homonymy cooperates with the first stopper 74 of homonymy.

The first magnetic block 71 moves downwards to drive the first limiting block 74 and the sewing thread 4 to move downwards, the first limiting block 74 moves downwards to drive the second limiting block 103 to move downwards, the fourth spring 102 is compressed, the sewing thread 4 moves downwards to be close to the clamping plate 95, the second limiting block 103 continues to move downwards until the second limiting block does not contact with the clamping plate 95, the third spring 94 in the stretching state resets to drive the clamping plate 95 to move inwards, the clamping plate 95 can clamp the sewing thread 4 penetrating through the needle head tightly, the first magnetic block 71 moves upwards to drive the first limiting block 74 to move upwards, the first limiting block 74 moves upwards until the first limiting block 74 does not contact with the second limiting block 103, the fourth spring 102 resets to drive the second limiting block 103 to move upwards to reset, automatic clamping work of the sewing thread 4 penetrating through the needle head is achieved, and manual operation is reduced.

Also comprises a discharging mechanism 11, the discharging mechanism 11 comprises a third sliding rod 111, a fifth spring 112 and a third limit block 113, a fourth fixing rod 114, a sixth spring 115 and a fourth limiting block 116, a third sliding rod 111 is slidably arranged at the front side of the upper portion of the base 1, a third limiting block 113 is arranged at the rear side of the bottom of the needle head protection frame 64, the third sliding rod 111 is connected with the third limiting block 113, a fifth spring 112 is wound on the third sliding rod 111, the fifth spring 112 is connected between the base 1 and the third limiting block 113, fourth fixing rods 114 are slidably arranged at the left and right sides of the front side of the upper portion of the base 1, fourth limiting blocks 116 are arranged on the inner sides of the two fourth fixing rods 114, the two fourth limiting blocks 116 are matched with the third limiting block 113, a sixth spring 115 is wound on the fourth fixing rods 114, the sixth spring 115 is connected between the fourth limiting block 116 and the base 1, and the fourth limiting block 116 on the same side is matched with the first fixing plate 93 on the same side.

The needle head protecting frame 64 moves forward to drive the third limiting block 113 and the third sliding rod 111 to move forward, the fifth spring 112 is stretched, the third limiting block 113 moves forward to drive the fourth limiting block 116 and the fourth fixing rod 114 to move outward, the sixth spring 115 is compressed, the fourth limiting block 116 moves outward to drive the first fixing plate 93 to move outward, the third spring 94 is stretched, the first fixing plate 93 moves outward to drive the clamping plate 95 to move outward, the clamping plate 95 drives the second limiting block 103 to move downward, the fourth spring 102 is compressed, the clamping plate 95 moves downward to be not in contact with the second limiting block 103, the fifth spring 112 resets to drive the second limiting block 103 to move upward, the second limiting block 103 clamps the clamping plate 95 at the moment, the clamping plate 95 moves outward to facilitate the next clamping operation on the sewing thread 4 passing through the needle head, the needle head protecting frame 64 is then loosened to reset the fifth spring 112, the fifth spring 112 drives the needle head protecting frame 64, the needle head protecting frame 116 is pulled, The third sliding rod 111 and the third limiting block 113 move backwards to reset, and the sixth spring 115 resets to drive the fourth fixing rod 114 and the fourth limiting block 116 to move inwards to reset, so that the clamp plate 95 moves outwards to clamp the sewing thread 4 passing through the needle head next time.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.