Embroidery machine head

Abstract

The utility model provides an embroidery machine head which comprises a rack, an embroidery mechanism and a driving mechanism, and the rack comprises a bearing piece, a moving piece and an upper thread frame body piece; the embroidering mechanism comprises a plurality of embroidering units, and each embroidering unit comprises an embroidering needle piece, a presser foot piece and a thread picking piece; the driving mechanism comprises an embroidery needle driving part, a presser foot driving part and a take-up driving part, the upper thread frame body part drives the embroidery unit to be close to the embroidery needle driving part, the presser foot driving part and the take-up driving part, and an embroidery needle part, a presser foot part and a take-up part of the embroidery unit are correspondingly connected with the embroidery needle driving part, the presser foot driving part and the take-up driving part respectively. The embroidery needle piece and the presser foot piece are separately and independently driven through the embroidery needle driving piece and the presser foot driving piece respectively, the presser foot driving piece is provided with the pressure sensing piece, the pressing distance of the presser foot can be automatically adjusted according to the thickness of cloth, cloth of different thicknesses can be adapted, the working stroke of the presser foot is reduced as much as possible, the embroidery effect is improved, and the production efficiency is improved. The machine rotating speed is improved, the working noise is reduced and the embroidery efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to embroidery machine technical field, specifically, relates to a embroidery machine head. BACKGROUND

[0002] Embroidery machine is a kind of mechanical equipment for carrying out fine embroidery on fabric, mainly through computer control embroidery needle movement, embroider the pattern designed in advance on cloth.

[0003] Before embroidery, the embroidery machine needs to be placed between the embroidery needle mechanism and the rotating shuttle mechanism, in the embroidery process, the presser foot of the embroidery machine will first contact and compress the fabric, then the embroidery needle carries the thread to the bottom of the fabric to form a loop, and the rotating shuttle mechanism hooks the loop and the bottom thread to form a lock stitch, the embroidery needle rises and resets to complete a single embroidery action, finally the presser foot rises or maintains pressure, and the fabric feeding mechanism moves the fabric for the next embroidery action. Nowadays, the presser foot and the embroidery needle are still driven by the same driving source, which can realize the synchronous action of the presser foot and the embroidery needle, but due to the forced synchronization of the presser foot and the embroidery needle, the parameters cannot be adjusted independently, the flexibility is poor, and it is difficult to accurately control the pressure of the presser foot when facing different thickness of fabric, which requires a lot of time to adjust the height of the presser foot, affecting the production efficiency. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides an embroidery machine head.

[0005] The embroidery machine head disclosed in the present application comprises a rack, an embroidery mechanism and a driving mechanism, the rack comprises a bearing part, a moving part and a thread rack body part, the moving part is arranged on the bearing part, and the thread rack body part is movably arranged on the moving part; the embroidery mechanism comprises a plurality of embroidery units arranged side by side on the thread rack body part, each embroidery unit comprises an embroidery needle part, a presser foot part and a thread lifting part, the embroidery needle part is movably arranged on the thread rack body part, the presser foot part is movably arranged on the thread rack body part and close to one end of the embroidery needle part, and the thread lifting part is arranged on the thread rack body part and close to the other end of the embroidery needle part; the driving mechanism comprises an embroidery needle driving part, a presser foot driving part and a thread lifting driving part arranged on the bearing part respectively, the moving part drives the movement of the thread rack body part, the movement of the thread rack body part drives one of the embroidery units to move close to the embroidery needle driving part, the presser foot driving part and the thread lifting driving part, and the embroidery needle part, the presser foot part and the thread lifting part of the embroidery unit are connected with the embroidery needle driving part, the presser foot driving part and the thread lifting driving part respectively.

[0006] Preferably, the presser foot driving member comprises a presser foot driving body, a presser foot driving link, a presser foot driving block and a sliding column, the presser foot driving body and the sliding column are respectively arranged on the bearing member, the driving end of the presser foot driving body is connected with one end of the presser foot driving link, the presser foot driving block is connected with the other end of the presser foot driving link, and the presser foot driving block is movably sleeved outside the sliding column; the end of the presser foot driving block facing the embroidery unit is provided with a first notch, the presser foot member is provided with a first protrusion at the position corresponding to the first notch, and the first protrusion can be embedded in the first notch to enable the presser foot member to be clamped with the presser foot driving block.

[0007] Preferably, the presser foot driving member further comprises a pressure sensing member and a controller, the pressure sensing member and the controller are integrated in the presser foot driving body, and the controller is electrically connected with the pressure sensing member.

[0008] Preferably, the embroidery needle driving member comprises an embroidery needle driving body, a transmission shaft, a transmission cam, an embroidery needle driving link and an embroidery needle driving block, the embroidery needle driving body is arranged on the bearing member, the output end of the embroidery needle driving body is connected with the transmission shaft, the transmission cam is sleeved outside the transmission shaft, the two ends of the embroidery needle driving link are respectively connected with the transmission cam and the embroidery needle driving block, and the embroidery needle driving block is movably sleeved outside the sliding column; the end of the embroidery needle driving block facing the embroidery unit is provided with a second notch, the embroidery needle member is provided with a second protrusion at the position corresponding to the second notch, and the second protrusion can be embedded in the second notch to enable the embroidery needle member to be clamped with the embroidery needle driving block.

[0009] Preferably, the thread tensioning driving member comprises a thread tensioning driving link and a thread tensioning driving block, the two ends of the thread tensioning driving link are respectively connected with the thread tensioning driving block and the transmission cam, the thread tensioning member is provided with a third notch, and the thread tensioning driving block can be embedded in the third notch to enable the thread tensioning member to be clamped with the thread tensioning driving block.

[0010] Preferably, the number of the face thread frame body member, the transmission cam, the embroidery needle driving link, the embroidery needle driving block, the presser foot driving member and the thread tensioning driving member is multiple, the multiple face thread frame body members are movably arranged on the moving member at intervals, multiple embroidery units are arranged side by side on each face thread frame body member, one face thread frame body member is arranged in combination with one presser foot driving member and one thread tensioning driving member, the multiple transmission cams are arranged on the transmission shaft at intervals and are arranged in correspondence with the multiple face thread frame body members, one end of the multiple embroidery needle driving links is connected with the multiple transmission cams in correspondence, and the other end of the multiple embroidery needle driving links is connected with the multiple embroidery needle driving blocks in correspondence.

[0011] Preferably, the driving mechanism further comprises a clutch driving member, the embroidery needle driving block is rotatably arranged on the sliding column, the driving end of the clutch driving member abuts against the embroidery needle driving block, and the clutch driving member drives the embroidery needle driving block to rotate on the sliding column to enable the second notch to be staggered with or directly opposite to the second protrusion.

[0012] Preferably, the clutch driving member comprises a clutch driving body, a clutch driving swing arm and a clutch driving connecting rod, the driving end of the clutch driving body is in abutment with one end of the clutch driving swing arm, the other end of the clutch driving swing arm is in abutment with one end of the clutch driving connecting rod, and the other end of the clutch driving connecting rod is in abutment with the needle driving block.

[0013] Preferably, the embroidery machine head further comprises a rotating shuttle mechanism, the rotating shuttle mechanism is arranged on the bearing member, and the rotating shuttle mechanism is opposite to one of the needle members.

[0014] Preferably, the embroidery machine head further comprises a face thread clamping mechanism, the face thread clamping mechanism is arranged on the face thread frame body, the face thread clamping mechanism has a plurality of face thread clamping openings, and the embroidery threads of the plurality of embroidery units are respectively clamped or loosened by passing through the plurality of face thread clamping openings.

[0015] The beneficial effects of the present application are that the needle member and the presser foot member are respectively driven independently by the needle driving member and the presser foot driving member, the presser foot member is independently controlled by the presser foot driving member, the degree of flexibility is high, the time for adjusting the height of the presser foot member when facing different thicknesses of cloth is saved, and the production efficiency is improved.

[0016] Meanwhile, since the presser foot driving member further comprises a pressure sensing member and a controller, the pressure of the presser foot member on the cloth can be detected in real time, when facing different thicknesses of cloth, the initial height of the presser foot member does not need to be adjusted in advance, that is, when the presser foot member presses and tightens the cloth, the pressure sensing member can transmit the pressure data of the presser foot member on the cloth to the controller in real time, the controller can control the pressing distance of the presser foot member driven by the presser foot driving body according to the pressure data, the adjustment time of the initial height of the pressing member is saved, the situation that the presser foot member uses the same pressing distance on different thicknesses of cloth to cause poor embroidery effect of the embroidery product is effectively avoided, so that the pressing distance of the presser foot member is automatically adjusted according to different thicknesses of cloth, and the stability and convenience are improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] The drawings described herein are used to provide further understanding of the present application, constitute a part of the present application, the illustrative embodiments of the present application and the description thereof are used to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0018] Figure 1 It is a structure schematic view of the embroidery machine head in the embodiment;

[0019] Figure 2 It is another structure schematic view of the embroidery machine head in the embodiment;

[0020] Figure 3 It is a structure schematic view of the face thread frame body and the embroidery unit in the embodiment;

[0021] Figure 4 It is another structure schematic view of the face thread frame body and the embroidery unit in the embodiment;

[0022] Figure 5 For Figure 4 A enlarged view of the middle part A;

[0023] Figure 6 For the structure diagram of the clamping member in the embodiment;

[0024] Figure 7 For the structure diagram of the clamping member after removing the clamping frame in the embodiment;

[0025] Figure 8 For the structure diagram of the embroidery unit in the embodiment;

[0026] Figure 9 For the structure diagram of the driving mechanism in the embodiment;

[0027] Figure 10 For the structure diagram of the presser foot driving member in the embodiment;

[0028] Figure 11 For the structure diagram of the embroidery needle driving member in the embodiment;

[0029] Figure 12 For the structure diagram of the clutch driving member in the embodiment.

[0030] Reference signs:

[0031] 1, frame; 11, bearing member; 12, moving member; 121, sliding rail; 122, sliding block; 13, body member of thread frame; 2, embroidery mechanism; 21, embroidery needle member; 211, second protrusion; 22, presser foot member; 221, first protrusion; 23, thread lifting member; 231, third gap; 3, driving mechanism; 31, embroidery needle driving member; 311, embroidery needle driving body; 312, transmission shaft; 313, transmission cam; 314, embroidery needle driving link; 315, embroidery needle driving block; 3151, second gap; 3152, sliding block; 3153, rotating block; 3154, guide sliding column; 32, presser foot driving member; 321, presser foot driving body; 322, presser foot driving link; 323, presser foot driving block; 3231, first gap; 324, sliding column; 325, presser foot driving swing arm; 33, thread lifting driving member; 331, thread lifting driving link; 332, thread lifting driving block; 34, clutch driving member; 341, clutch driving body; 342, clutch driving swing arm; 343, clutch driving link; 344, rotating column; 345, torsional spring; 4, rotating shuttle mechanism; 5, thread clamping mechanism; 51, clamping member; 511, clamping frame; 512, fixed frame; 513, clamping block; 514, thimble; 515, spring; 52, clamping driving member; 521, clamping driving motor; 522, clamping driving swing arm; 523, clamping driving link; 524, clamping fixed column; 525, clamping torsional spring; 526, clamping pushing block. Detailed Implementation

[0032] The following drawings disclose several embodiments of this application. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this application. That is, in some embodiments of this application, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0033] It should be noted that all directional indications in the embodiments of this application, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indication will also change accordingly.

[0034] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit this application. They are merely used to distinguish components or operations described using the same technical terms and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0035] To further understand the content, features, and effects of this application, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0036] Reference Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the embroidery machine head in the embodiment. Figure 2For another structural schematic diagram of the embroidery machine head in the embodiment, the embroidery machine head in the embodiment includes a rack 1, an embroidery mechanism 2 and a driving mechanism 3. The rack 1 includes a bearing part 11, a moving part 12 and a thread rack body part 13. The moving part 12 is arranged on the bearing part 11. The thread rack body part 13 is movably arranged on the moving part 12. The embroidery mechanism 2 includes a plurality of embroidery units arranged side by side on the thread rack body part 13. Each embroidery unit includes a needle part 21, a presser foot part 22 and a thread tensioner part 23. The needle part 21 is movably arranged on the thread rack body part 13. The presser foot part 22 is movably arranged on the thread rack body part 13 and close to one end of the needle part 21. The thread tensioner part 23 is arranged on the thread rack body part 13 and close to the other end of the needle part 21. The driving mechanism 3 includes a needle driving part 31, a presser foot driving part 32 and a thread tensioner driving part 33 arranged on the bearing part 11 respectively. The moving part 12 drives the thread rack body part 13 to move. The movement of the thread rack body part 13 drives one of the embroidery units to move close to the needle driving part 31, the presser foot driving part 32 and the thread tensioner driving part 33. The needle part 21, the presser foot part 22 and the thread tensioner part 23 of the embroidery unit are connected to the needle driving part 31, the presser foot driving part 32 and the thread tensioner driving part 33 respectively.

[0037] In this embodiment, the embroidery machine head is used for embroidering fabric. During embroidery, the presser foot drive 32 drives the presser foot 22 to descend and press the fabric firmly, ensuring its stability. The needle drive 31 drives the needle 21 to rise and fall for embroidery. After one stitch is completed, the presser foot drive 32 drives the presser foot 22 to rise to release the fabric or maintain pressure, facilitating the movement of the fabric for the next stitch. This process is repeated. Because the needle 21 and presser foot 22 are driven independently by the needle drive 31 and presser foot drive 32 respectively, and the presser foot 22 is independently controlled by the presser foot drive 32, the machine head offers high flexibility, saves time adjusting the height of the presser foot 22 when dealing with fabrics of different thicknesses, and improves production efficiency. Specifically, the embroidery machine head also includes a rotary shuttle mechanism 4 and a thread clamping mechanism 5. The rotary shuttle mechanism 4 is located on the support member 11 and is directly opposite one of the embroidery needles 21. The embroidery needle 21 carries the embroidery thread and inserts it into the bottom of the fabric to form a loop. The rotary shuttle mechanism 4 hooks the loop and interweaves it with the bottom thread to form a lock stitch. The embroidery needle 21 rises and resets to complete a single embroidery action. Then, the fabric feeding mechanism moves the fabric so that the embroidery needle 21 can perform the next embroidery action. It can be understood that the position of the support member 11 is fixed, that is, the position of the rotary shuttle mechanism 4 is also fixed. The fabric feeding mechanism moves the fabric to achieve embroidery operations at different positions on the fabric. The fabric feeding mechanism is existing technology and is used to clamp and move the fabric, which will not be described in detail here. The thread holder 13 can slide on the movable part 12. Each embroidery unit is equipped with a different color or type of embroidery thread. That is, the movement of the thread holder 13 will drive multiple embroidery units to move synchronously, so that the embroidery needle 21 of one embroidery unit is aligned with the rotary hook mechanism 4, thus allowing switching to different colors or types of embroidery threads for embroidery. The rotary hook mechanism 4 in this embodiment is prior art and will not be described in detail here. The support part 11 is a support frame.

[0038] Refer to together Figures 3-7 , Figure 3 This is a schematic diagram of the structure of the face thread frame and the embroidery unit in the embodiment. Figure 4 This is another structural schematic diagram of the face thread frame and embroidery unit in the embodiment. Figure 5 for Figure 4 Enlarged view of part A in the middle. Figure 6 This is a schematic diagram of the clamping component in the embodiment. Figure 7As a schematic view of the structure of the clamping member after the clamping frame is removed in the embodiment, specifically, the face thread clamping mechanism 5 is arranged on the face thread frame body member 13, and the face thread clamping mechanism 5 has a plurality of face thread clamping openings, and the embroidery threads of the plurality of embroidery units are respectively clamped or loosened by passing through the plurality of face thread clamping openings. Further, the face thread clamping mechanism 5 includes a clamping member 51 and a clamping driving member 52. The clamping member 51 includes a clamping frame 511, a fixing frame 512, a plurality of clamping blocks 513, a plurality of thimbles 514, and a plurality of springs 515. The clamping frame 511 is arranged on the face thread frame body member 13. The fixing frame 512 is arranged on the clamping frame 511. The plurality of clamping blocks 513 are arranged on the clamping frame 511 in sequence along the moving direction of the face thread frame body member 13. One end of the plurality of thimbles 514 is exposed to the face thread frame body member 13. The other end of the plurality of thimbles 514 passes through the face thread frame body member 13, the clamping frame 511, and the fixing frame 512 in sequence and is respectively connected to the plurality of clamping blocks 513. One end of the plurality of springs 515 is connected to the face thread frame body member 13. The other end of the plurality of springs 515 passes through the clamping frame 511 and the fixing frame 512 and is respectively connected to the plurality of clamping blocks 513. The clamping blocks 513 and the fixing frame 512 have a clamping gap. The embroidery thread on the thread lifting member 23 passes through the face thread clamping opening and the clamping gap and is connected to the embroidery needle member 21, that is, each clamping block 513 is arranged corresponding to one embroidery unit, for loosening the embroidery thread when the embroidery unit is embroidering, and clamping the embroidery thread when the embroidery unit is not embroidering. The clamping driving member 52 includes a clamping driving motor 521, a clamping driving swing arm 522, a clamping driving connecting rod 523, a clamping fixing column 524, a clamping torsional spring 525, and a clamping pushing block 526. The driving end of the clamping driving motor 521 is connected to the clamping driving swing arm 522. One end of the clamping driving connecting rod 523 is connected to the clamping driving swing arm 522. The clamping driving connecting rod 523 is rotatably arranged on the clamping fixing column 524. The clamping fixing column 524 is arranged on the bearing member 11. The clamping pushing block 526 is arranged on the other end of the clamping driving connecting rod 523. The clamping torsional spring 525 is sleeved outside the clamping fixing column 524 and acts on the clamping driving connecting rod 523. The clamping torsional spring 525 is used for pulling the clamping driving connecting rod 523 to reset the clamping pushing block 526 and move away from the thimbles 514 when not embroidering.It is understood that when the face thread rack body piece 13 moves to connect one embroidery unit with the embroidery needle driving piece 31, the presser foot driving piece 32 and the thread tensioning driving piece 33 respectively, the embroidery needle driving piece 31 can drive the embroidery needle piece 21 of the embroidery unit to embroider, the presser foot driving piece 32 drives the presser foot piece 22 of the embroidery unit to press the fabric, and the thread tensioning driving piece 33 drives the thread tensioning piece 23 to release and wind the embroidery thread. At this time, the movement of the face thread rack body piece 13 will synchronously drive one end of one thimble 514 of the face thread clamping mechanism 5 to be opposite to the clamping push block 526. The clamping driving motor 521 drives the clamping driving swing arm 522 to swing, the clamping driving swing arm 522 swings to drive the clamping driving connecting rod 523 to swing, the clamping driving connecting rod 523 swings to drive the clamping push block 526 to push one end of the thimble 514, so that the spring 515 is stretched, the thimble 514 drives the clamping block 513 to gradually move away from the fixed frame 512, the clamping gap becomes larger, and the embroidery thread in the clamping gap is loosened. At this time, the embroidery thread can be loosened for embroidery operation. It is understood that when the embroidery unit needs to embroider, the clamping push block 526 pushes the thimble 514 and the clamping block 513 to loosen the embroidery thread, and the embroidery thread of the remaining embroidery units is clamped by the face thread clamping mechanism 5, that is, under the elastic force of the spring 515, the clamping block 513 is close to the fixed frame 512 and clamps the embroidery thread of the remaining embroidery units in the clamping gap. Further, the moving piece 12 includes a sliding rail 121, a sliding block 122 and a moving driving body (not shown in the figure), the sliding rail 121 is arranged on the bearing piece 11, the sliding block 122 is slidingly arranged on the sliding rail 121, the driving end of the moving driving body is connected with the sliding block 122, and the face thread rack body piece 13 is arranged on the sliding block 122. The moving driving body drives the sliding block 122 to slide on the sliding rail 121, thereby driving the face thread rack body piece 13 to move on the sliding rail 121. 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 122 to slide through a screw pair driven by a motor, or the motor can drive the sliding block 122 to slide through a belt traction, which is not limited here.

[0039] Referring to Figures 8-10 , Figure 8 FIG. 1 is a structural schematic diagram of an embroidery unit in an embodiment, Figure 9 FIG. 2 is a structural schematic diagram of a driving mechanism in an embodiment, Figure 10For the structural schematic diagram of the presser foot driving member in the embodiment, preferably, the presser foot driving member 32 comprises a presser foot driving body 321, a presser foot driving link 322, a presser foot driving block 323 and a sliding column 324, the presser foot driving body 321 and the sliding column 324 are respectively arranged on the bearing member 11, the driving end of the presser foot driving body 321 is connected with one end of the presser foot driving link 322, the presser foot driving block 323 is connected with the other end of the presser foot driving link 322, and the presser foot driving block 323 is movably sleeved outside the sliding column 324. The end of the presser foot driving block 323 facing the embroidery unit is provided with a first notch 3231, and the presser foot member 22 is provided with a first protrusion 221 at the position corresponding to the first notch 3231, so that the first protrusion 221 can be embedded in the first notch 3231 to enable the presser foot member 22 to be clamped with the presser foot driving block 323. In specific application, the first protrusion 221 is arranged on each presser foot member 22, when the face thread frame body member 13 is moved on the moving member 12 to enable the first protrusion 221 of the presser foot member 22 of one embroidery unit to be embedded in the first notch 3231 of the presser foot driving block 323, the presser foot driving member 32 can drive the presser foot member 22 of the embroidery unit to ascend and descend to compress or loosen the cloth. Specifically, the presser foot driving member 32 further comprises a presser foot driving swing arm 325, the presser foot driving swing arm 325 is respectively connected with one end of the presser foot driving link 322 and the driving end of the presser foot driving body 321, the presser foot driving body 321 drives the presser foot driving swing arm 325 to swing, the presser foot driving swing arm 325 swings to drive the presser foot driving link 322 to swing, the presser foot driving link 322 swings to drive the presser foot driving block 323 to reciprocatingly slide up and down on the sliding column 324, the presser foot driving block 323 reciprocatingly slides up and down to drive one presser foot member 22 to reciprocatingly ascend and descend to compress or loosen the cloth. Specifically, the presser foot driving member 32 further comprises a pressure sensing member and a controller, the pressure sensing member and the controller are integrated in the presser foot driving body 321, and the controller is electrically connected with the pressure sensing member. It can be understood that, since the presser foot driving member 32 in the embodiment is provided with the pressure sensing member, the pressure of the presser foot member 22 on the cloth can be detected in real time, that is, when facing the cloth with different thicknesses, it is not necessary to adjust the initial height of the presser foot member 22 in advance, when the presser foot member 22 is pressed to compress the cloth, the pressure sensing member can transmit the pressure data of the presser foot member 22 on the cloth to the controller in real time, and the controller can control the presser foot driving body 321 to drive the presser foot member 22 to press down according to the pressure data, thereby saving the adjustment time of the initial height of the presser foot member 22, and effectively avoiding the situation that the presser foot member 22 uses the same press-down distance for the cloth with different thicknesses to cause the embroidery effect of the embroidery product to be poor, so as to realize the automatic adaptive adjustment of the press-down distance of the presser foot member 22 according to the cloth with different thicknesses, and improve the stability and convenience. The presser foot driving body 321 is a presser foot driving motor, and the pressure sensing member is a pressure sensing module, which are integrated in the presser foot driving motor, that is, the pressure sensing member is directly integrated in the presser foot driving motor to form a torque control motor to realize the automatic control of the press-down stroke of the presser foot member 22.In other embodiments, the pressure sensing member can also be a pressure sensor, by setting the pressure sensor on the presser foot driving block 323 or the presser foot member 22, the pressure of the presser foot member 22 on the fabric can be obtained in real time when the presser foot member 22 presses the fabric, and the pressure data is transmitted to the controller, of course, in other embodiments, the presser foot driving body 321 can also directly use an intelligent torque control motor. The presser foot member 22 is an embroidery machine presser foot.

[0040] With reference to Figure 11 , Figure 11 is a structure schematic view of the embroidery needle driving member in the embodiments, preferably, the embroidery needle driving member 31 comprises an embroidery needle driving body 311, a transmission shaft 312, a transmission cam 313, an embroidery needle driving connecting rod 314 and an embroidery needle driving block 315, the embroidery needle driving body 311 is arranged on the bearing member 11, the output end of the embroidery needle driving body 311 is connected with the transmission shaft 312, the transmission cam 313 is sleeved outside the transmission shaft 312, the two ends of the embroidery needle driving connecting rod 314 are respectively connected with the transmission cam 313 and the embroidery needle driving block 315, and the embroidery needle driving block 315 is movably sleeved outside the sliding column 324. An end of the embroidery needle driving block 315 facing the embroidery unit is provided with a second notch 3151, the embroidery needle member 21 is provided with a second protrusion 211 at a position corresponding to the second notch 3151, and the second protrusion 211 can be embedded in the second notch 3151 to make the embroidery needle member 21 and the embroidery needle driving block 315 clamped. In specific application, the moving member 12 drives the face thread rack body member 13 to move and makes one of the embroidery needle members 21 opposite to the embroidery needle driving block 315 of the embroidery needle driving member 31, that is, the second protrusion 211 of one of the embroidery needle members 21 is embedded in the second notch 3151, at this time, the embroidery needle driving body 311 drives the transmission shaft 312 to rotate, the transmission shaft 312 drives the transmission cam 313 to rotate, the transmission cam 313 drives the embroidery needle driving connecting rod 314 to swing, the embroidery needle driving connecting rod 314 drives the embroidery needle driving block 315 to move up and down on the sliding column 324, and the embroidery needle driving block 315 drives the embroidery needle member 21 to move up and down to perform embroidery work. It can be understood that when it is necessary to switch embroidery threads of different colors or types to perform embroidery, the moving member 12 drives the face thread rack body member 13 to move and makes the other embroidery needle member 21 opposite to the embroidery needle driving block 315 of the embroidery needle driving member 31, at this time, the second protrusion 211 of the other embroidery needle member 21 is embedded in the second notch 3151, that is, the other embroidery needle member 21 is clamped with the embroidery needle driving block 315, and the embroidery needle driving body 311 can drive the other embroidery needle member 21 to move up and down to perform embroidery work. Specifically, the embroidery needle driving body 311 comprises an embroidery needle driving motor, a driving wheel, a synchronous belt and a transmission wheel, the driving end of the embroidery needle driving motor is connected with the driving wheel, the synchronous belt is sequentially wound outside the driving wheel and the transmission wheel, the transmission wheel is rotatably arranged on the bearing member 11, one end of the transmission shaft 312 is arranged in the transmission wheel, and the transmission cam 313 is sleeved on the other end of the transmission shaft 312. The embroidery needle member 21 is an embroidery machine needle.

[0041] With reference toFigure 11 Preferably, the thread tensioning driving member 33 comprises a thread tensioning driving link 331 and a thread tensioning driving block 332, both ends of the thread tensioning driving link 331 are connected to the thread tensioning driving block 332 and the transmission cam 313 respectively, the thread tensioning member 23 is provided with a third notch 231, and the thread tensioning driving block 332 can be embedded in the third notch 231 to enable the thread tensioning member 23 to be clamped with the thread tensioning driving block 332. By arranging the thread tensioning driving link 331, the present embodiment can simultaneously drive the thread tensioning member 23 and the embroidery needle member 22 by arranging only one driving source, thereby improving the synchronization of the movements of the thread tensioning member 23 and the embroidery needle member 22 and simplifying the structure of the equipment. The clamping manner of the thread tensioning member 23 and the thread tensioning driving block 332 is similar to the clamping manner of the embroidery needle member 21 and the embroidery needle driving block 315, that is, the embroidery needle member 21, the presser foot member 22 and the thread tensioning member 23 of the same embroidery unit are located on the same vertical line, when it is required to switch the embroidery thread of different colors or types, the thread rack body member 13 drives the plurality of embroidery units to move and enables one of the embroidery units to be opposite to the driving mechanism 3, that is, the second protrusion 211 of the embroidery needle member 21, the first protrusion 221 of the presser foot member 22 and the thread tensioning driving block 332 of the embroidery unit are embedded in the second notch 3151, the first notch 3231 and the third notch 231 respectively, and the clamping pushing block 526 is opposite to the clamping member 51 responsible for clamping the embroidery thread of the embroidery unit. Specifically, the thread tensioning member 23 is a thread tensioning rod of an embroidery machine, which is used for unwinding and winding the embroidery thread and cooperates with the embroidery needle member 21 to perform embroidery.

[0042] With reference to Figure 1 and Figure 2 Preferably, the number of the thread rack body members 13, the transmission cams 313, the embroidery needle driving links 314, the embroidery needle driving blocks 315, the presser foot driving members 32 and the thread tensioning driving members 33 is multiple, the plurality of thread rack body members 13 are respectively and movably arranged on the moving member 12, each thread rack body member 13 is provided with a plurality of embroidery units side by side, one thread rack body member 13 is arranged in combination with one presser foot driving member 32 and one thread tensioning driving member 33, the plurality of transmission cams 313 are respectively and movably arranged on the transmission shaft 312 and are arranged in correspondence with the plurality of thread rack body members 13, one end of each of the plurality of embroidery needle driving links 314 is connected to the plurality of transmission cams 313 in correspondence, and the plurality of embroidery needle driving blocks 315 are connected to the other end of the plurality of embroidery needle driving links 314 in correspondence. In specific applications, the number of the thread rack body members 13, the transmission cams 313, the embroidery needle driving links 314, the embroidery needle driving blocks 315, the presser foot driving members 32 and the thread tensioning driving members 33 in the present embodiment is two, and it can be understood that the present embodiment can simultaneously drive the thread tensioning member 23 and the embroidery needle member 22 on two thread rack body members 13 to work by arranging only one driving source, thereby further simplifying the structure of the equipment, that is, each thread rack body member 13 can independently perform embroidery work, thereby improving the production efficiency.

[0043] With reference to Figure 12 ,Figure 12 For the structure schematic diagram of the clutch driving member in the embodiment, preferably, the driving mechanism 3 further comprises a clutch driving member 34, and the embroidery needle driving block 315 is rotatably arranged on the sliding column 324. The driving end of the clutch driving member 34 is in abutment with the embroidery needle driving block 315. The clutch driving member 34 pushes the embroidery needle driving block 315 to rotate on the sliding column 324 so that the second notch 3151 is misaligned with or directly opposite to the second protrusion 211. Through the arrangement of the clutch driving member 34, when only one embroidery unit on one of the thread rack body members 13 needs to perform the embroidery operation, the clutch driving member 34 can push the embroidery needle driving block 315 to rotate on the sliding column 324 so that the second notch 3151 is misaligned with the second protrusion 211. Thus, the second protrusion 211 of the embroidery needle member 21 of the embroidery unit on the other thread rack body member 13 cannot be directly opposite to and embedded in the second notch 3151 of the embroidery needle driving block 315. Therefore, when the embroidery needle driving block 315 reciprocally moves up and down on the sliding column 324, the embroidery needle member 21 cannot be synchronously moved. That is, at this time, the embroidery unit on the thread rack body member 13 does not perform the embroidery operation. The clutch driving member 34 can be applied to the case that only one embroidery machine head needs to perform the embroidery.

[0044] Preferably, the clutch driving member 34 comprises a clutch driving body 341, a clutch driving swing arm 342 and a clutch driving connecting rod 343, the driving end of the clutch driving body 341 abuts against one end of the clutch driving swing arm 342, the other end of the clutch driving swing arm 342 abuts against one end of the clutch driving connecting rod 343, and the other end of the clutch driving connecting rod 343 abuts against the needle driving block 315. In specific applications, the middle part of the clutch driving connecting rod 343 is rotatably connected to the bearing member 11 through a rotating column 344, a torsional spring 345 is sleeved on the rotating column 344, the torsional spring 345 acts on the clutch driving connecting rod 343, and the other end of the clutch driving connecting rod 343 is rotatably provided with a rotating wheel or a rotating bearing. The needle driving block 315 comprises a sliding block 3152 and a rotating block 3153, the rotating block 3153 is embedded in the middle part of the sliding block 3152 and can rotate relative to the sliding block 3152, the sliding block 3152 is slidably arranged on the sliding column 324, the rotating block 3153 is rotatably arranged on the sliding column 324, a second notch 3151 is formed on the side of the rotating block 3153 facing the thread rack body member 13, and a guide sliding column 3154 is connected to one end of the rotating block 3153 close to the clutch driving connecting rod 343, and the guide sliding column 3154 can slide relative to the rotating wheel or the rotating bearing of the clutch driving connecting rod 343. The clutch driving member 34 further comprises a reset torsional spring (not shown in the figure) which abuts against the rotating block 3153 for resetting the rotating block 3153. It can be understood that when only one embroidery machine head is needed for embroidery, the clutch driving body 341 drives the clutch driving swing arm 342 to swing, the clutch driving swing arm 342 swings to drive the clutch driving connecting rod 343 to swing, the other end of the clutch driving connecting rod 343 pushes the rotating block 3153 and the guide sliding column 3154 to rotate relative to the sliding column 324, so that the second notch 3151 is misaligned with the second protrusion 211, that is, the second protrusion 211 cannot be embedded in the second notch 3151 to realize the clamping of the needle member 21 and the needle driving block 315, and at this time, the needle member 21 does not perform embroidery work. When both embroidery units on the two thread rack body members 13 need to work, the clutch driving body 341 stops driving, and under the action of the elastic force of the reset torsional spring, the rotating block 3153 rotates on the sliding column 324 and resets, and at this time, the second protrusion 211 can be embedded in the second notch 3151 to realize the clamping of the needle member 21 and the needle driving block 315. Specifically, the clutch driving body 341 is a clutch driving motor.

[0045] In summary, since the embroidery needle 21 and the presser foot 22 are driven independently by the embroidery needle driving member 31 and the presser foot driving member 32 respectively, the presser foot 22 is controlled independently by the presser foot driving member 32, which is high in flexibility, saves the time for adjusting the height of the presser foot 22 when facing different thickness of cloth, and improves the production efficiency. At the same time, since the presser foot driving member 32 further comprises a pressure sensing member and a controller, the pressure of the presser foot 22 on the cloth can be detected in real time, when facing different thickness of cloth, there is no need to adjust the initial height of the presser foot 22 in advance, that is, when the presser foot 22 presses and tightens the cloth, the pressure sensing member can transmit the pressure data of the presser foot 22 on the cloth to the controller in real time, and the controller can control the driving distance of the presser foot driving body 321 to drive the presser foot 22 according to the pressure data, which saves the adjustment time of the initial height of the presser foot 22, effectively avoids the situation that the embroidery effect is not good due to the same driving distance of the presser foot 22 for different thickness of cloth, so as to realize the automatic adjustment of the driving distance of the presser foot 22 according to different thickness of cloth, and improve the stability and convenience.

[0046] The above is only an embodiment of the present application and is not used to limit the present application. The present application can have various changes and variations for those skilled in the art. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the scope of claims of the present application.

Claims

1. A head for an embroidery machine, characterized in that, The application relates to a frame (1), a embroidery mechanism (2) and a driving mechanism (3). The frame (1) comprises a carrier (11), a moving part (12) and a face thread frame body (13), the moving part (12) is arranged on the carrier (11), and the face thread frame body (13) is movably arranged on the moving part (12). The embroidery mechanism (2) comprises a plurality of embroidery units arranged side by side on the face thread frame body (13), each of the embroidery units comprises a embroidery needle (21), a presser foot (22) and a thread lifting part (23), the embroidery needle (21) is movably arranged on the face thread frame body (13), the presser foot (22) is movably arranged on the face thread frame body (13) and close to one end of the embroidery needle (21), and the thread lifting part (23) is arranged on the face thread frame body (13) and close to the other end of the embroidery needle (21). The driving mechanism (3) comprises a embroidery needle driving part (31), a presser foot driving part (32) and a thread lifting driving part (33) arranged on the carrier (11) respectively, the moving part (12) drives the face thread frame body (13) to move, the face thread frame body (13) drives one of the embroidery units to move close to the embroidery needle driving part (31), the presser foot driving part (32) and the thread lifting driving part (33), and the embroidery needle (21), the presser foot (22) and the thread lifting part (23) of the embroidery unit are connected with the embroidery needle driving part (31), the presser foot driving part (32) and the thread lifting driving part (33) respectively.

2. The embroidery head according to claim 1, characterized in that The presser foot driving part (32) comprises a presser foot driving body (321), a presser foot driving connecting rod (322), a presser foot driving block (323) and a sliding column (324), the presser foot driving body (321) and the sliding column (324) are arranged on the carrier (11) respectively, the driving end of the presser foot driving body (321) is connected with one end of the presser foot driving connecting rod (322), the presser foot driving block (323) is connected with the other end of the presser foot driving connecting rod (322), and the presser foot driving block (323) is movably sleeved outside the sliding column (324); one end of the presser foot driving block (323) facing the embroidery unit is provided with a first notch (3231), the presser foot (22) is provided with a first protruding block (221) corresponding to the position of the first notch (3231), and the first protruding block (221) can be embedded into the first notch (3231) so that the presser foot (22) is clamped with the presser foot driving block (323).

3. The embroidery head according to claim 2, characterized in that, The presser foot driving part (32) further comprises a pressure sensing part and a controller, the pressure sensing part and the controller are integrated on the presser foot driving body (321), and the controller is electrically connected with the pressure sensing part.

4. The embroidery head according to claim 2, characterized in that The embroidery needle driving member (31) comprises an embroidery needle driving body (311), a transmission shaft (312), a transmission cam (313), an embroidery needle driving connecting rod (314) and an embroidery needle driving block (315), the embroidery needle driving body (311) is arranged on the bearing member (11), the output end of the embroidery needle driving body (311) is connected with the transmission shaft (312), the transmission cam (313) is sleeved outside the transmission shaft (312), the two ends of the embroidery needle driving connecting rod (314) are respectively connected with the transmission cam (313) and the embroidery needle driving block (315), and the embroidery needle driving block (315) is movably sleeved outside the sliding column (324); the end of the embroidery needle driving block (315) facing the embroidery unit is provided with a second notch (3151), the embroidery needle member (21) is provided with a second protrusion (211) at the position corresponding to the second notch (3151), and the second protrusion (211) can be embedded in the second notch (3151) so that the embroidery needle member (21) is clamped with the embroidery needle driving block (315).

5. The embroidery head according to claim 4, characterized in that, The thread tensioning driving member (33) comprises a thread tensioning driving connecting rod (331) and a thread tensioning driving block (332), the two ends of the thread tensioning driving connecting rod (331) are respectively connected with the thread tensioning driving block (332) and the transmission cam (313), the thread tensioning member (23) is provided with a third notch (231), and the thread tensioning driving block (332) can be embedded in the third notch (231) so that the thread tensioning member (23) is clamped with the thread tensioning driving block (332).

6. The embroidery head according to claim 4, characterized in that, The number of the face thread rack body members (13), the transmission cams (313), the embroidery needle driving connecting rods (314), the embroidery needle driving blocks (315), the presser foot driving members (32) and the thread tensioning driving members (33) is multiple, the multiple face thread rack body members (13) are movably arranged on the moving member (12) at intervals, multiple embroidery units are arranged side by side on each face thread rack body member (13), one face thread rack body member (13) is arranged in combination with one presser foot driving member (32) and one thread tensioning driving member (33), the multiple transmission cams (313) are arranged on the transmission shaft (312) at intervals and are arranged in correspondence with the multiple face thread rack body members (13), one end of the multiple embroidery needle driving connecting rods (314) is connected with the multiple transmission cams (313) in correspondence, and the other end of the multiple embroidery needle driving connecting rods (314) is connected with the multiple embroidery needle driving blocks (315) in correspondence.

7. The embroidery head according to claim 6, characterized in that The driving mechanism (3) further comprises a clutch driving member (34), the embroidery needle driving block (315) is rotatably arranged on the sliding column (324), the driving end of the clutch driving member (34) is abutted with the embroidery needle driving block (315), and the clutch driving member (34) drives the embroidery needle driving block (315) to rotate on the sliding column (324) so that the second notch (3151) is staggered with or directly opposite to the second protrusion (211).

8. The embroidery head according to claim 7, characterized in that The clutch driving member (34) comprises a clutch driving body (341), a clutch driving swing arm (342) and a clutch driving connecting rod (343), the driving end of the clutch driving body (341) is in abutment with one end of the clutch driving swing arm (342), the other end of the clutch driving swing arm (342) is in abutment with one end of the clutch driving connecting rod (343), and the other end of the clutch driving connecting rod (343) is in abutment with the embroidery needle driving block (315).

9. The embroidery head according to claim 1, characterized in that, It also comprises a rotating shuttle mechanism (4), which is arranged on the bearing member (11), and is opposite to one of the embroidery needle members (21).

10. The embroidery head according to claim 1, characterized in that, It also comprises a face thread clamping mechanism (5), which is arranged on the face thread rack body member (13), and has a plurality of face thread clamping openings, and the embroidery threads of the plurality of embroidery units are clamped or loosened through the plurality of face thread clamping openings respectively.

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