Upper thread clamping mechanism and embroidery machine head

Abstract

The utility model provides an upper thread clamping mechanism. The upper thread clamping mechanism comprises a frame body assembly, a driving assembly and a clamping assembly, the driving assembly comprises a rack, an upper thread frame body part and a moving part, and the upper thread frame body part is movably arranged on the moving part; the driving assembly comprises a driving piece and a pushing piece, and the pushing piece is connected with the driving end of the driving piece; the clamping assembly comprises a clamping frame body part, a fixing part, a plurality of clamping parts and a plurality of elastic parts, the fixing part is arranged on the clamping frame body part, the clamping parts are sequentially arranged on the clamping frame body part, and clamping gaps are formed between the clamping parts and the fixing part; the utility model further provides the embroidery machine head. The structure that the driving piece drives the pushing piece to push the clamping piece to loosen the embroidery thread is more reliable, compared with a traditional structure that an electromagnet is used for loosening and clamping the embroidery thread, the defects that the electromagnet is prone to damage, short in service life and large in working sound are effectively overcome, the difficulty of daily maintenance is reduced, and the working efficiency is improved. The operation stability of the mechanism is improved, and the noise during working is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to embroidery machine technical field, specifically, relates to a face line clamping mechanism and embroidery machine head. BACKGROUND

[0002] Embroidery machine is a kind of mechanical equipment for fine embroidery on fabric, mainly through computer control embroidery needle movement, embroider the pattern designed in advance on cloth.In the process of embroidery, face line clamping mechanism will loosen embroidery thread, so that embroidery thread can be smoothly conveyed to embroidery needle to carry out embroidery, and when stopping needle, face line clamping mechanism will quickly clamp embroidery thread, prevent adjacent embroidery needle from being pulled to cause dislocation, entanglement or broken thread when carrying out embroidery, so as to cause thread drop phenomenon when using the embroidery needle to carry out embroidery again, influence the continuous progress of embroidery work.

[0003] The face line clamping mechanism in existing embroidery machine is mostly realized by electromagnet to push top rod to loosen and clamp embroidery thread, but the service life of electromagnet is not long, and embroidery machine needs to frequently switch different colors of embroidery thread to carry out embroidery in use process, so electromagnet needs to be repeatedly powered on and off to cooperate to loosen and clamp embroidery thread, which leads to high failure damage rate of electromagnet, increases daily maintenance difficulty, increases maintenance cost, and electromagnet makes loud noise when working, which influences the environment of working periphery. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of prior art, the application provides a face line clamping mechanism and embroidery machine head.

[0005] The face line clamping mechanism disclosed by the application comprises a frame body assembly, a driving assembly and a clamping assembly.The driving assembly comprises a rack, a face line frame body piece and a moving piece, the moving piece is arranged on the rack, and the face line frame body piece is movably arranged on the moving piece.The driving assembly comprises a driving piece and a pushing piece, the driving piece is arranged on the rack, and the pushing piece is connected with the driving end of the driving piece.The clamping assembly comprises a clamping frame body piece, a fixing piece, a plurality of clamping pieces and a plurality of elastic pieces, the clamping frame body piece is arranged on the face line frame body piece, the fixing piece is arranged on the clamping frame body piece, the plurality of clamping pieces are arranged on the clamping frame body piece in sequence along the moving direction of the face line frame body piece, one end of each of the plurality of elastic pieces is connected with the face line frame body piece, the other end of each of the plurality of elastic pieces is connected with the corresponding clamping piece after passing through the clamping frame body piece and the fixing piece, and the clamping piece and the fixing piece have a clamping gap.In the clamping state, the elastic piece pulls the clamping piece to be close to the fixing piece, and the embroidery thread is clamped in the clamping gap.In the loosening state, the face line frame body piece moves on the moving piece and drives the pushing piece to be opposite to one of the clamping pieces, the driving piece drives the pushing piece to push the clamping piece away from the fixing piece, and the embroidery thread in the clamping gap is loosened.

[0006] Preferably, the clamping member comprises a plurality of push pins and a clamping block fixedly arranged outside the push pins, the push pins are sequentially arranged through the clamping frame body along the moving direction of the face thread frame body, and one end of the push pin is exposed outside the clamping frame body, and the other end of the push pin sequentially passes through the clamping frame body, the fixing member and the clamping block, the clamping block and the fixing member have a clamping gap, a spring is arranged outside the push pin, and the two ends of the spring are connected with the clamping frame body and the clamping block respectively; in the loosening state, the push member is opposite to one of the push pins, the driving member drives the push member to push the push pin, the push pin drives the clamping block to move away from the fixing member, and the embroidery thread in the clamping gap is loosened.

[0007] Preferably, one side of the clamping block facing the fixing member is provided with a protrusion, and the fixing member is provided with a groove corresponding to the position of the protrusion; in the clamping state, the protrusion extends into the groove and clamps the embroidery thread.

[0008] Preferably, the clamping frame body is provided with a plurality of guide holes on the side away from the push member, and the other end of the plurality of push pins is arranged through the guide holes respectively.

[0009] Preferably, the clamping block is provided with a guide block and a sliding groove on the opposite sides respectively, a plurality of clamping blocks are sequentially arranged along the moving direction of the face thread frame body, and the guide block of the clamping block extends into the sliding groove of the adjacent clamping block.

[0010] Preferably, the clamping frame body is provided with a plurality of thread passing holes, the thread passing holes are arranged one by one corresponding to the plurality of clamping members respectively, and the thread passing hole is opposite to the clamping gap.

[0011] Preferably, the clamping assembly further comprises an anti-abrasion member, the anti-abrasion member is arranged on the clamping frame body, and the anti-abrasion member is in contact with the embroidery thread passing through the clamping gap.

[0012] Preferably, the clamping frame body is provided with an anti-abrasion groove, and the anti-abrasion member is detachably arranged in the anti-abrasion groove.

[0013] The application also discloses a face thread clamping mechanism.

[0014] Preferably, the embroidery machine head further comprises an embroidery needle mechanism, a presser foot mechanism, a thread tension mechanism, a rotating shuttle mechanism and the thread clamping mechanism in embodiment one, wherein the embroidery needle mechanism comprises an embroidery needle driving assembly and a plurality of embroidery needle assemblies, the plurality of embroidery needle assemblies are arranged on the thread rack body in sequence along the moving direction of the thread rack body, and the embroidery needle driving assembly is arranged on the machine frame; the moving element drives the thread rack body to move and connects the embroidery needle driving assembly and one of the embroidery needle assemblies. The presser foot mechanism comprises a presser foot driving assembly and a plurality of presser foot assemblies, the plurality of presser foot assemblies are arranged on the thread rack body in sequence along the moving direction of the thread rack body, and the plurality of presser foot assemblies are arranged one by one corresponding to the plurality of embroidery needle assemblies; the presser foot driving assembly is arranged on the machine frame, and the moving element drives the thread rack body to move and connects the presser foot driving assembly and one of the presser foot assemblies. The thread tension mechanism comprises a thread tension driving assembly and a plurality of thread tension rod assemblies, the plurality of thread tension rod assemblies are arranged on the thread rack body in sequence along the moving direction of the thread rack body, the thread tension driving assembly is arranged on the machine frame, the moving element drives the thread rack body to move and connects the thread tension driving assembly and one of the thread tension rod assemblies, and the plurality of thread tension rod assemblies are arranged one by one corresponding to the plurality of embroidery needle assemblies. The rotating shuttle mechanism is arranged on the machine frame and opposite to one of the embroidery needle assemblies.

[0015] The beneficial effects of the present application are that: through the arrangement of the moving element, the thread rack body can be driven to move, so that the pushing element is moved to the clamping element where the embroidery thread needs to be loosened, and the driving element drives the pushing element to push the clamping element to loosen the embroidery thread; after the embroidery is completed, the driving element drives the pushing element to move away from the clamping element, and under the action of the elastic force of the elastic element, the clamping element gradually approaches the fixed element and clamps the embroidery thread again. Compared with the traditional structure using electromagnet to loosen and clamp the embroidery thread, the structure of the present application using the driving element to drive the pushing element to push the clamping element to loosen the embroidery thread is more reliable, effectively avoids the shortcomings that the electromagnet is easy to be damaged, has a short service life and makes a loud noise during work, reduces the difficulty of daily maintenance, improves the stability of the operation of the mechanism, and reduces the noise during work. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings described herein are used to provide further understanding of the present application, constitute a part of the present application, and the illustrative embodiments of the present application and their descriptions are used to explain the present application, and do not constitute improper limitations on the present application. In the drawings:

[0017] Figure 1 It is a structure schematic view of the embroidery machine head in embodiment one;

[0018] Figure 2 It is another structure schematic view of the embroidery machine head in embodiment one;

[0019] Figure 3 It is Figure 2 the enlarged view of part A in the middle;

[0020] Figure 4Structure diagram of the clamping assembly in Example One;

[0021] Figure 5 Another structure diagram of the clamping assembly in Example One;

[0022] Figure 6 Structure diagram of the embroidery machine head in Example Two;

[0023] Figure 7 Another structure diagram of the embroidery machine head in Example Two;

[0024] Figure 8 Structure diagram of the embroidery needle assembly, the presser foot assembly and the thread tension lever assembly in Example Two;

[0025] Figure 9 Structure diagram of the embroidery needle driving assembly and the thread tension driving assembly in Example Two;

[0026] Figure 10 Structure diagram of the presser foot driving assembly in Example Two.

[0027] Reference signs:

[0028] 1, frame assembly; 11, frame; 12, bobbin frame part; 13, moving part; 131, slide rail; 132, slide block; 2, driving assembly; 21, driving part; 22, pushing part; 221, swing arm; 222, connecting rod; 223, fixed column; 224, torsion spring; 225, pushing block; 3, clamping assembly; 31, clamping frame part; 311, guide hole; 312, thread passing hole; 313, wear-preventing groove; 32, fixing part; 321, recess; 322, passing hole; 33, clamping part; 331, thimble; 332, clamping block; 3321, protruding block; 3322, guide block; 3323, slide; 34, elastic part; 35, wear-preventing part; 4, embroidery needle mechanism; 41, embroidery needle driving assembly; 411, transmission shaft; 412, cam mechanism; 413, first connecting rod; 414, clamping block; 4141, clamping notch; 415, sliding column; 42, embroidery needle assembly; 421, clamping dead point; 5, presser foot mechanism; 51, presser foot driving assembly; 511, presser foot driving motor; 512, presser foot driving arm; 513, presser foot driving connecting rod; 514, sliding block; 52, presser foot assembly; 6, thread tension mechanism; 61, thread tension driving assembly; 611, thread tension driving connecting rod; 62, thread tension lever assembly; 7, rotating shuttle mechanism. DETAILED DESCRIPTION

[0029] The present application will be described with reference to the accompanying drawings. The following detailed description of the application is provided for the purpose of illustrating certain embodiments thereof and is not intended to limit the scope of the application, which is delineated in the appended claims. In the drawings, like numbers refer to like elements throughout. In the following description, well-known functions or constructions are not described in detail to avoid obscuring the present application in unnecessary detail.

[0030] It should be noted that the terms "upper", "lower", "left", "right", "front", "back", etc. are used herein only to describe relative positions or movements between components, and are not intended to limit the scope of the present application. These terms are relative terms, and will change accordingly if the specific posture shown in the drawings changes.

[0031] In addition, the terms "first", "second", etc. are used herein only for the purpose of description, and are not intended to limit the scope of the present application. These terms are merely used to distinguish components or operations described by the same technical terms, and cannot be understood as indicating or implying the relative importance of the technical features indicated, or implying the number of technical features indicated. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the realization of ordinary skilled in the art. When the combination of technical solutions contradicts each other or cannot be realized, it should be considered that the combination of technical solutions does not exist, and is not within the scope of protection claimed by the present application.

[0032] In order to further understand the application content, characteristics and effects of the present application, the following embodiments are exemplified and described in detail as follows with reference to the accompanying drawings.

[0033] Embodiment One:

[0034] Referring to Figures 1-3 , Figure 1 Fig. 1 is a structural schematic diagram of the embroidery machine head in Embodiment One, Figure 2 Fig. 2 is another structural schematic diagram of the embroidery machine head in Embodiment One, Figure 3 Fig. 3 is a structural schematic diagram of the embroidery machine head in Embodiment Two, Figure 2The face thread clamping mechanism in the embodiment comprises a frame assembly 1, a driving assembly 2 and a clamping assembly 3. The driving assembly 2 comprises a frame 11, a face thread frame member 12 and a moving member 13, the moving member 13 is arranged on the frame 11, and the face thread frame member 12 is movably arranged on the moving member 13. The driving assembly 2 comprises a driving member 21 and a pushing member 22, the driving member 21 is arranged on the frame 11, and the pushing member 22 is connected with the driving end of the driving member 21. The clamping assembly 3 comprises a clamping frame member 31, a fixing member 32, a plurality of clamping members 33 and a plurality of elastic members 34, the clamping frame member 31 is arranged on the face thread frame member 12, the fixing member 32 is arranged on the clamping frame member 31, the plurality of clamping members 33 are arranged on the clamping frame member 31 in sequence along the moving direction of the face thread frame member 12, one end of each of the plurality of elastic members 34 is connected with the face thread frame member 12, the other end of each of the plurality of elastic members 34 is connected with the corresponding clamping member 33 after passing through the clamping frame member 31 and the fixing member 32, and the clamping member 33 has a clamping gap with the fixing member 32. In the clamping state, the elastic member 34 pulls the clamping member 33 to be close to the fixing member 32, and the embroidery thread is clamped in the clamping gap. In the releasing state, the face thread frame member 12 moves on the moving member 13 and drives the pushing member 22 to be opposite to one of the clamping members 33, the driving member 21 drives the pushing member 22 to push the clamping member 33 away from the fixing member 32, and the embroidery thread in the clamping gap is released.

[0035] The face thread clamping mechanism in the embodiment is installed on the embroidery machine head, and is used for clamping and loosening the embroidery thread to cooperate with the embroidery needle mechanism for embroidery. In specific application, each of the clamping gaps between the clamping pieces 33 and the fixed pieces 32 has an embroidery thread passing therethrough. When a certain embroidery thread does not perform embroidery, that is, in the clamping state, the elastic piece 34 pulls the clamping piece 33 to gradually approach and close to the fixed piece 32, so that the embroidery thread is clamped in the clamping gap between the clamping piece 33 and the fixed piece 32. When a certain embroidery thread needs to be loosened for embroidery, that is, in the loosening state, the face thread frame body piece 12 moves on the moving piece 13, and the face thread frame body piece 12 drives the driving piece 21 and the pushing piece 22 to move, so that the pushing piece 22 is opposite to the clamping piece 33 responsible for clamping the embroidery thread. The driving piece 21 drives the pushing piece 22 to push the clamping piece 33, the elastic piece 34 is stretched, the clamping piece 33 gradually moves away from the fixed piece 32, and the embroidery thread is loosened and can cooperate with the embroidery needle mechanism for embroidery. Through the arrangement of the moving piece 13, the face thread frame body piece 12 can be driven to move, so that the pushing piece 22 is moved to the clamping piece 33 which needs to be loosened for embroidery, and the driving piece 21 drives the pushing piece 22 to push the clamping piece 33 to loosen the embroidery thread. After the embroidery is completed, the driving piece 21 drives the pushing piece 22 to move away from the clamping piece 33, and under the action of the tension of the elastic piece 34, the clamping piece 33 gradually approaches the fixed piece 32 and clamps the embroidery thread again. Compared with the traditional structure using electromagnet to loosen and clamp the embroidery thread, the structure of the embodiment using the driving piece to drive the pushing piece 22 to push the clamping piece 33 to loosen the embroidery thread is more reliable, effectively avoids the shortcomings that the electromagnet is easy to be damaged, has short service life and loud noise during work, reduces the difficulty of daily maintenance and repair, improves the stability of the mechanism operation, and reduces the noise during work.

[0036] Referring to Figure 4 and Figure 5 , Figure 4 is a structural schematic view of the clamping assembly in embodiment one, Figure 5For another structure diagram of the clamping assembly in the embodiment one, preferably, the clamping piece 33 comprises a plurality of top pins 331 and a clamping block 332 fixedly sleeved outside the top pins 331, the plurality of top pins 331 are sequentially penetrated into the clamping frame body piece 31 along the moving direction of the thread frame body piece 12, and one end of the top pin 331 is exposed outside the clamping frame body piece 31, the other end of the top pin 331 sequentially penetrates through the clamping frame body piece 31, the fixing piece 32 and the clamping block 332, the clamping block 332 has a clamping gap with the fixing piece 32, the elastic piece 34 is sleeved outside the top pin 331, and two ends of the elastic piece 34 are respectively connected with the clamping frame body piece 31 and the clamping block 332. In the loosened state, the pushing piece 22 is opposite to one of the top pins 331, the driving piece 21 drives the pushing piece 22 to push the top pin 331, the top pin 331 drives the clamping block 332 to move away from the fixing piece 32, and the embroidery thread in the clamping gap is loosened. In the specific application, the clamping frame body piece 31 in the embodiment is a thread clamping frame, the length direction of the clamping frame body piece 31 is the moving direction of the thread frame body piece 12, the fixing piece 32 is a fixed frame, the fixing piece 32 is arranged on one side of the clamping frame body piece 31 along the length direction of the clamping frame body piece 31, a plurality of penetrating holes 322 are formed in the fixing piece 32 along the moving direction of the thread frame body piece 12, and a plurality of penetrating holes 322 are also formed in the corresponding position of the clamping frame body piece 31. It can be understood that one end of the top pin 331 is exposed on the other side of the clamping frame body piece 31, and the other end of the top pin 331 is fixedly connected with the clamping block 332 after sequentially penetrating through the clamping frame body piece 31 and the fixing piece 32 through the penetrating holes 322. The elastic piece 34 is a spring, which is sleeved outside the top pin 331 and penetrates through the penetrating holes 322 of the fixing piece 32, and two ends of the elastic piece 34 are respectively connected with the clamping frame body piece 31 and the clamping block 332. That is to say, when a certain embroidery thread does not perform embroidery, that is, in the clamped state, under the pulling force of the elastic piece 34, the elastic piece 34 pulls the clamping block 332 to move close to and tightly contact the fixing piece 32, so as to clamp the embroidery thread in the clamping gap between the clamping block 332 and the fixing piece 32. When different colors or types of embroidery threads need to be switched to perform embroidery, the thread frame body piece 12 moves on the moving piece 13 and drives the pushing piece 22 to move to be opposite to the clamping piece 33 clamping the embroidery thread, that is, opposite to one end of the top pin 331, at this time, the driving piece 21 drives the pushing piece 22 to move to push the top pin 331, the top pin 331 moves to drive the clamping block 332 to move, the elastic piece 34 is stretched, at this time, the clamping block 332 moves away from the fixing piece 32, the clamping gap is increased, and the embroidery thread is loosened, so that the embroidery can be performed in cooperation with the embroidery needle mechanism. Compared with the traditional use of electromagnet, the structure is more reliable, and the disadvantages that the electromagnet is easy to be damaged and has short service life can be effectively avoided, the difficulty of daily maintenance is reduced, and the stability of the operation of the mechanism is improved. Specifically, the moving piece 13 comprises a sliding rail 131, a sliding block 132 and a moving driving body (not shown in the figure), the sliding rail 131 is arranged on the rack 11, the sliding block 132 is slidingly arranged on the sliding rail 131, the driving end of the moving driving body is connected with the sliding block 132, and the thread frame body piece 12 is arranged on the sliding block 132.The moving driving body drives the sliding block 132 to slide on the slide rail 131, so as to drive the face thread frame body 12 to move on the slide rail 131. In the embodiment, the moving driving body is a linear motor, and of course, in other embodiments, the moving driving body can also drive the sliding block 132 to slide through a screw pair driven by a motor, or can be a motor driving the sliding block 132 to slide through a belt, which is not limited here. The driving part 21 is a driving motor, and the pushing part 22 includes a swing arm 221, a connecting rod 222, a fixed column 223, a torsional spring 224 and a pushing block 225. The swing arm 221 is connected with a driving end of the driving motor, one end of the connecting rod 222 is connected with the swing arm 221, the connecting rod 222 is rotationally connected with the fixed column 223, the fixed column 223 is arranged on the rack 11, the pushing block 225 is connected with the other end of the connecting rod 222, the torsional spring 224 is sleeved outside the fixed column 223 and acts on the connecting rod 222, and the torsional spring 224 is used for pulling the connecting rod 222 to reset the pushing block 225 and move away from the thimble 331 in the clamping state. The driving motor drives the swing arm 221 to swing, the swing arm 221 swings to drive the connecting rod 222 to swing, and the connecting rod 222 swings to drive the pushing block 225 to approach or move away from one end of the thimble 331.

[0037] With reference back to Figure 4 And Figure 5 Preferably, one side of the clamping block 332 facing the fixed part 32 is provided with a protruding block 3321, and the fixed part 32 is provided with a groove 321 corresponding to the position of the protruding block 3321. In the clamping state, the protruding block 3321 extends into the groove 321 and clamps the embroidery thread. Through the arrangement of the protruding block 3321 and the groove 321, in the clamping state, the embroidery thread is clamped in the clamping gap twice after being bent, that is, the embroidery thread is closely attached to the surface of the protruding block 3321, so as to increase the contact area between the embroidery thread and the protruding block 3321 and increase the friction force, so that the embroidery thread can be clamped more stably by the clamping block 332 and the fixed part 32 in the clamping state, and the stability of the clamping of the embroidery thread is improved.

[0038] With reference back to Figure 4 And Figure 5, preferably, the clamping frame body 31 is provided with a plurality of guide holes 311 on the side away from the pushing piece 22, and the other ends of the plurality of thimbles 331 are respectively arranged in the plurality of guide holes 311. Through the arrangement of the guide holes 311, the other ends of the thimbles 331 can be guided and limited, so that the movement of the thimbles 331 will not deviate when the pushing piece 22 pushes the thimbles 331, and the stability of the movement of the thimbles 331 is improved. Further, the opposite sides of the clamping block 332 are respectively provided with a guide block 3322 and a sliding groove 3323, and the plurality of clamping blocks 332 are arranged in sequence along the movement direction of the face line frame body 12, and the guide block 3322 of the clamping block 332 extends into the sliding groove 3323 of the adjacent clamping block 332. Through the arrangement of the guide block 3322 and the sliding groove 3323, the movement of the clamping block 332 can be guided and limited, so that the movement of the clamping block 332 will not deviate, and the stability of the movement of the clamping block 332 is improved.

[0039] Referring back to Figure 4 and Figure 5 , preferably, the clamping frame body 31 is provided with a plurality of wire passing holes 312, and the plurality of wire passing holes 312 are respectively arranged one by one corresponding to the plurality of clamping pieces 33, and the wire passing hole 312 is opposite to the clamping gap. In specific application, the wire passing hole 312 is arranged at the top of the clamping frame body 31, the embroidery thread passes through the wire passing hole 312 and extends into the clamping frame body 31, then passes through the clamping gap and is connected to the embroidery needle, and different colors or types of embroidery threads are respectively arranged in different wire passing holes 312. Further, the clamping assembly 3 further comprises an anti-abrasion piece 35, which is arranged on the clamping frame body 31, and the anti-abrasion piece 35 is in contact with the embroidery thread passing through the clamping gap. Because the embroidery thread will move up and down with the embroidery needle during the embroidery process, it is easy to scratch the fixed piece 32 during the up and down movement of the embroidery thread. Through the arrangement of the anti-abrasion piece 35, the embroidery thread can be prevented from being scratched on the fixed piece 32 to cause hair hanging and breakage, and the fixed piece 32 can also be prevented from being cut and damaged by the embroidery thread. In the embodiment, the anti-abrasion piece 35 is a porcelain rod. Specifically, the clamping frame body 31 is provided with an anti-abrasion groove 313, and the anti-abrasion piece 35 is detachably installed in the anti-abrasion groove 313, so as to facilitate the disassembly and replacement of the anti-abrasion piece 35.

[0040] Embodiment two:

[0041] Referring back to Figures 6-10 , Figure 6 is a structure schematic view of the embroidery machine head in embodiment two, Figure 7 is another structure schematic view of the embroidery machine head in embodiment two, Figure 8 is a structure schematic view of the embroidery needle assembly, the presser foot assembly and the thread tension lever assembly in embodiment two, Figure 9 is a structure schematic view of the embroidery needle driving assembly and the thread tension driving assembly in embodiment two, Figure 10For the structure schematic diagram of the presser foot driving assembly in the embodiment two, the embroidery machine head in the embodiment includes the embroidery needle mechanism 4, the presser foot mechanism 5, the thread tension mechanism 6, the rotating shuttle mechanism 7 and the face thread clamping mechanism in the embodiment one, wherein the embroidery needle mechanism 4 includes the embroidery needle driving assembly 41 and a plurality of embroidery needle assemblies 42, the plurality of embroidery needle assemblies 42 are arranged in sequence along the moving direction of the face thread rack body piece 12 and are arranged on the face thread rack body piece 12, the embroidery needle driving assembly 41 is arranged on the rack 11, the moving piece 13 drives the face thread rack body piece 12 to move and makes the embroidery needle driving assembly 41 connect with one of the embroidery needle assemblies 42. The presser foot mechanism 5 includes the presser foot driving assembly 51 and a plurality of presser foot assemblies 52, the plurality of presser foot assemblies 52 are arranged in sequence along the moving direction of the face thread rack body piece 12 and are arranged on the face thread rack body piece 12, and the plurality of presser foot assemblies 52 are arranged one by one corresponding to the plurality of embroidery needle assemblies 42, the presser foot driving assembly 51 is arranged on the rack 11, the moving piece 13 drives the face thread rack body piece 12 to move and makes the presser foot driving assembly 51 connect with one of the presser foot assemblies 52. The thread tension mechanism 6 includes the thread tension driving assembly 61 and a plurality of thread tension lever assemblies 62, the plurality of thread tension lever assemblies 62 are arranged in sequence along the moving direction of the face thread rack body piece 12 and are arranged on the face thread rack body piece 12, the thread tension driving assembly 61 is arranged on the rack 11, the moving piece 13 drives the face thread rack body piece 12 to move and makes the thread tension driving assembly 61 connect with one of the thread tension lever assemblies 62, and the plurality of thread tension lever assemblies 62 are arranged one by one corresponding to the plurality of embroidery needle assemblies 42. The rotating shuttle mechanism 7 is arranged on the rack 11 and is opposite to one of the embroidery needle assemblies 42.

[0042] With reference back Figures 6-10 , in specific application, one embroidery needle assembly 42, one presser foot assembly 52, one clamping piece 33 and one thread tension lever assembly 62 are arranged corresponding and cooperate to form an embroidery unit, the embroidery unit controls one embroidery thread to carry out embroidery. A plurality of embroidery units are arranged in sequence and side by side on the face thread rack body piece 12, it can be understood that in the embroidery operation, the position of the rack 11 and the rotating shuttle mechanism 7 does not change, one embroidery unit is opposite to the rotating shuttle mechanism 7, the product to be embroidered is located between the embroidery unit and the rotating shuttle mechanism 7, the presser foot driving assembly 51 drives the presser foot assembly 52 to descend and press the product to be embroidered, the embroidery needle driving assembly 41 drives the embroidery needle assembly 42 to reciprocatingly ascend and descend and cooperates with the rotating shuttle mechanism 7 to carry out embroidery operation, and the thread tension driving assembly 61 drives the thread tension lever assembly 62 to carry out the embroidery thread paying-off and take-up. When it is needed to switch different colors or types of embroidery thread to carry out embroidery, the thread cutting mechanism (not shown in the figure) cuts the excess embroidery thread of one embroidery unit, the moving driving body drives the sliding block 132 to slide on the sliding rail 131, thereby driving the face thread rack body piece 12 to slide on the sliding rail 131, so that the rotating shuttle mechanism 7 is opposite to another embroidery unit, the driving piece 21 drives the pushing piece 22 to push the clamping piece 33 of the embroidery unit to loosen the embroidery thread, so that the embroidery operation using different types or colors of embroidery thread can be realized.

[0043] With reference back Figures 6-10, specifically, the embroidery needle driving assembly 41 comprises an embroidery needle driving motor, a driving wheel, a synchronous belt, a transmission wheel, a transmission shaft 411, a cam mechanism 412, a first connecting rod 413, a clamping block 414 and a sliding column 415. The driving end of the embroidery needle driving motor is connected with the driving wheel. The synchronous belt is sequentially wound on the driving wheel and the transmission wheel. The transmission wheel is rotatably arranged on the frame 11. One end of the transmission shaft 411 is arranged in the transmission wheel. The cam mechanism 412 is sleeved on the other end of the transmission shaft 411. One end of the first connecting rod 413 is connected with the cam mechanism 412. The other end of the first connecting rod 413 is connected with the clamping block 414. The clamping block 414 is movably sleeved on the sliding column 415. The embroidery needle driving motor drives the driving wheel to rotate. The driving wheel drives the transmission wheel to rotate through the synchronous belt. The transmission wheel drives the transmission shaft 411 to rotate. The transmission shaft 411 drives the cam mechanism 412 to rotate. The cam mechanism 412 drives the clamping block 414 to move up and down on the sliding column 415 through the first connecting rod 413. The side of the clamping block 414 facing the embroidery unit is provided with a clamping gap 4141. Each embroidery needle assembly 42 is provided with a clamping dead point 421. When the face thread rack body 12 moves to drive the plurality of embroidery needle assemblies 42 to move, the clamping dead point 421 of one of the embroidery needle assemblies 42 is embedded in the clamping gap 4141. At this time, the clamping block 414 moves up and down to drive the embroidery needle assembly 42 to move up and down to perform embroidery work. That is, the left and right movement of the face thread rack body 12 drives the embroidery needle assembly 42 to move left and right, so that the clamping dead point 421 of one of the embroidery needle assemblies 42 is embedded in the clamping gap 4141. Then the clamping block 414 moves up and down to drive the embroidery needle assembly 42 to move up and down to perform embroidery work. Specifically, the thread lifting driving assembly 61 comprises a thread lifting driving connecting rod 611. One end of the thread lifting driving connecting rod 611 is connected with the cam mechanism 412. The other end of the thread lifting driving connecting rod 611 extends towards the direction of the thread lifting rod assembly 62 and can be connected with one of the thread lifting rod assemblies 62 in a clamping manner. The clamping manner is similar to the connection manner of the clamping block 414 and the embroidery needle assembly 42. The thread lifting rod assembly 62 is a thread lifting rod. The cooperation process and principle of the thread lifting rod assembly 62 and the embroidery needle assembly 42 in embroidery are both prior art and will not be described here. Further, the presser foot driving assembly 51 comprises a presser foot driving motor 511, a presser foot driving arm 512, a presser foot driving connecting rod 513 and a sliding block 514. The output end of the presser foot driving motor 511 is connected with one end of the presser foot driving arm 512. The other end of the presser foot driving arm 512 is connected with one end of the presser foot driving connecting rod 513. The other end of the presser foot driving connecting rod 513 is connected with the sliding block 514. The sliding block 514 is movably sleeved on the sliding column 419. The sliding block 514 is provided with a gap similar to the clamping gap. Correspondingly, the presser foot assembly 52 is provided with a corresponding clamping block. The cooperation manner is similar to that of the embroidery needle assembly 42 and the clamping block 414 and will not be described here.That is, when different colors or types of embroidery thread need to be switched, the face thread rack body 12 moves and drives the multiple embroidery units to move synchronously, and the clamping dead point 421 of the embroidery needle assembly 42, the clamping block of the presser foot assembly 52, the other end of the thread driving connecting rod, the clamping notch 4141 of the clamping block 414, the clamping notch of the sliding block 514, and the clamping notch of the thread lever assembly 62 are respectively embedded, and the one end of the pusher 22 and the clamping piece 33 are opposite, the driving piece 21 drives the pusher 22 to push the clamping piece 33 to loosen the embroidery thread, so that the embroidery unit can be driven by the embroidery needle driving assembly 41, the presser foot driving assembly 51, the thread driving assembly 61 and the rotating shuttle mechanism 7 to perform embroidery work.

[0044] In summary, through the setting of the moving piece 13, the face thread rack body 12 can be moved to drive the pusher 22 to move to the clamping piece 33 where the embroidery thread needs to be loosened, and the driving piece 21 drives the pusher 22 to push the clamping piece 33 to loosen the embroidery thread. After the embroidery is completed, the driving piece 21 drives the pusher 22 away from the clamping piece 33, and under the action of the tension of the elastic piece 34, the clamping piece 33 gradually approaches the fixed piece 32 and re-clamps the embroidery thread. Compared with the traditional structure of using electromagnets to loosen and clamp the embroidery thread, the structure of using the driving piece to drive the pusher 22 to push the clamping piece 33 to loosen the embroidery thread is more reliable, effectively avoids the shortcomings that electromagnets are easy to damage, have short service life and make loud noise when working, reduces the difficulty of daily maintenance and improves the stability of the mechanism operation and reduces the noise when working.

[0045] The above is only an embodiment of the present application and is not intended to limit the present application. The present application can have various modifications and changes for those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the scope of the claims of the present application.

Claims

1. A thread clamping mechanism characterized by comprising: The application relates to a face line clamping device, which comprises the following components: a frame assembly (1) comprising a frame (11), a face line frame body (12) and a moving part (13), wherein the moving part (13) is arranged on the frame (11), and the face line frame body (12) is movably arranged on the moving part (13); a driving assembly (2) comprising a driving part (21) and a pushing part (22), wherein the driving part (21) is arranged on the frame (11), and the pushing part (22) is connected with the driving end of the driving part (21); and a clamping assembly (3) comprising a clamping frame body (31), a fixing part (32), a plurality of clamping parts (33) and a plurality of elastic parts (34), wherein the clamping frame body (31) is arranged on the face line frame body (12), the fixing part (32) is arranged on the clamping frame body (31), a plurality of the clamping parts (33) are sequentially arranged on the clamping frame body (31) along the moving direction of the face line frame body (12), one end of each of the plurality of elastic parts (34) is connected with the face line frame body (12), and the other end of each of the plurality of elastic parts (34) is connected with the corresponding clamping part (33) after penetrating through the clamping frame body (31) and the fixing part (32), and the clamping part (33) and the fixing part (32) have a clamping gap. In the clamping state, the elastic part (34) pulls the clamping part (33) to be close to the fixing part (32), and the embroidery thread is clamped in the clamping gap; in the releasing state, the face line frame body (12) moves on the moving part (13) and drives the pushing part (22) to be opposite to one of the clamping parts (33), the driving part (21) drives the pushing part (22) to push the clamping part (33) to be away from the fixing part (32), and the embroidery thread in the clamping gap is released. The clamping part (33) comprises a thimble (331) and a clamping block (332) fixedly arranged outside the thimble (331), a plurality of the thimbles (331) are sequentially arranged outside the clamping frame body (31) along the moving direction of the face line frame body (12), one end of the thimble (331) is exposed outside the clamping frame body (31), the other end of the thimble (331) sequentially penetrates through the clamping frame body (31), the fixing part (32) and the clamping block (332), the clamping block (332) and the fixing part (32) have a clamping gap, the elastic part (34) is arranged outside the thimble (331), and the two ends of the elastic part (34) are respectively connected with the clamping frame body (31) and the clamping block (332); in the releasing state, the pushing part (22) is opposite to one of the thimbles (331), the driving part (21) drives the pushing part (22) to push the thimble (331), the thimble (331) drives the clamping block (332) to be away from the fixing part (32), and the embroidery thread in the clamping gap is released. ​ ​ 2. The thread clamping mechanism according to claim 1, wherein ​ 3. The thread clamping mechanism according to claim 2, wherein The clamping block (332) is provided with a protrusion (3321) on the side facing the fixing member (32), and the fixing member (32) is provided with a groove (321) corresponding to the position of the protrusion (3321); in the clamping state, the protrusion (3321) extends into the groove (321) and clamps the embroidery thread.

4. The thread clamping mechanism according to claim 2, wherein The clamping frame member (31) is provided with a plurality of guide holes (311) on the side away from the pushing member (22), and the other ends of the plurality of push pins (331) are respectively arranged in the plurality of guide holes (311).

5. The thread clamping mechanism according to claim 2, wherein The opposite sides of the clamping block (332) are respectively provided with a guide block (3322) and a sliding groove (3323), a plurality of clamping blocks (332) are arranged in sequence along the moving direction of the face thread frame member (12), and the guide block (3322) of the clamping block (332) extends into the sliding groove (3323) of the adjacent clamping block (332).

6. The thread clamping mechanism according to claim 1, wherein The clamping frame member (31) is provided with a plurality of thread passing holes (312), and the plurality of thread passing holes (312) are respectively arranged one by one corresponding to the plurality of clamping members (33), and the thread passing hole (312) is opposite to the clamping gap.

7. The thread clamping mechanism according to claim 2, wherein The clamping assembly (3) further comprises an anti-wear member (35), which is arranged on the clamping frame member (31), and the anti-wear member (35) is in contact with the embroidery thread passing through the clamping gap.

8. The thread clamping mechanism according to claim 7, wherein The clamping frame member (31) is provided with an anti-wear groove (313), and the anti-wear member (35) is detachably arranged in the anti-wear groove (313).

9. A head for an embroidery machine, characterized in that, The face thread clamping mechanism comprises the face thread clamping mechanism according to any one of claims 1-8.

10. The embroidery head according to claim 9, characterized in that, It further comprises: The embroidery needle mechanism (4) comprises an embroidery needle driving assembly (41) and a plurality of embroidery needle assemblies (42), the plurality of embroidery needle assemblies (42) are arranged in sequence on the face thread frame member (12) along the moving direction of the face thread frame member (12), the embroidery needle driving assembly (41) is arranged on the rack (11), and the moving member (13) drives the face thread frame member (12) to move and connects the embroidery needle driving assembly (41) and one of the embroidery needle assemblies (42); The presser foot mechanism (5) comprises a presser foot driving assembly (51) and a plurality of presser foot assemblies (52), the plurality of presser foot assemblies (52) are arranged in sequence on the face thread frame member (12) along the moving direction of the face thread frame member (12), and the plurality of presser foot assemblies (52) are arranged one by one corresponding to the plurality of embroidery needle assemblies (42), the presser foot driving assembly (51) is arranged on the rack (11), and the moving member (13) drives the face thread frame member (12) to move and connects the presser foot driving assembly (51) and one of the presser foot assemblies (52); The presser foot mechanism (5) comprises a presser foot driving assembly (51) and a plurality of presser foot assemblies (52), the plurality of presser foot assemblies (52) are arranged in sequence on the face thread frame member (12) along the moving direction of the face thread frame member (12), and the plurality of presser foot assemblies (52) are arranged one by one corresponding to the plurality of embroidery needle assemblies (42), the presser foot driving assembly (51) is arranged on the rack (11), and the moving member (13) drives the face thread frame member (12) to move and connects the presser foot driving assembly (51) and one of the presser foot assemblies (52); The thread tensioning mechanism (6) comprises a thread tensioning driving assembly (61) and a plurality of thread tensioning rod assemblies (62). The thread tensioning rod assemblies (62) are arranged in sequence along the moving direction of the thread rack body (12). The thread tensioning driving assembly (61) is arranged on the rack (11). The moving element (13) drives the thread rack body (12) to move and connects the thread tensioning driving assembly (61) with one of the thread tensioning rod assemblies (62). The thread tensioning rod assemblies (62) are arranged one by one corresponding to the embroidery needle assemblies (42). The rotating shuttle mechanism (7) is arranged on the rack (11) and faces one of the embroidery needle assemblies (42).

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