Thread take-up rod disengagement drive mechanism and embroidery machine

Abstract

The utility model discloses a thread take-up lever disengagement drive mechanism, comprising: a presser foot, a presser foot drive mechanism for driving the presser foot, a thread take-up lever with a transmission component, a thread take-up lever drive mechanism for driving the transmission component, and a disengagement drive assembly; during the process of the presser foot being lifted to its original position, the presser foot acts on the disengagement drive assembly, and the disengagement drive assembly acts on the transmission component, so that the transmission component moves laterally and is separated from the thread take-up lever drive mechanism. The utility model also discloses an embroidery machine. The utility model has the beneficial effect that the thread take-up lever can stop taking up the thread when the embroidery machine stops without separately configuring a driver.

Description

Technical Field

[0001] The utility model relates to a thread take-up rod disengagement driving mechanism and an embroidery machine, belonging to the technical field of embroidery machines. Background Art

[0002] In the technical field of embroidery machines, a multi-head embroidery machine has multiple heads, and these heads share a main shaft. The main shaft drives the needle bar of the head to reciprocate up and down and the thread take-up rod to swing back and forth through a transmission structure. When a head is embroidering, the thread take-up rod of the head swings back and forth to retract and release the embroidery thread, and provides the embroidery thread to the embroidery needle at the bottom of the needle bar. The needle bar of the head reciprocates up and down to make the embroidery needle embroider the embroidery work. When the head stops embroidering and other heads are embroidering, the needle bar of the head can be separated from its corresponding transmission structure, so that the needle bar is stationary, and the thread take-up rod of the head will continue to swing back and forth, which will not only easily lead to the loosening of the embroidery thread, but also the thread take-up rod will repeatedly rub against the embroidery thread, thereby causing the embroidery thread to fluff and wear, and even the embroidery thread to break.

[0003] The patent application with prior art publication number CN116949708A previously applied by the applicant discloses a thread take-up rod locking device and an embroidery machine. In the prior art, the thread take-up rod is locked by the cooperation of a locking structure, an active rocker arm and a driven rocker arm. However, this locking device requires a separate driving mechanism to drive the locking structure to move. On the one hand, it will increase the cost and increase the failure rate due to the increase in structural components. On the other hand, the space inside the head of the embroidery machine is relatively limited, and the additional structure is not conducive to space layout and space optimization. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a thread take-up lever disengaging driving mechanism, a machine head and an embroidery machine, so that the thread take-up lever can stop taking up thread when the embroidery machine stops without separately configuring a driver.

[0005] The utility model is realized through the following technical solutions.

[0006] A thread take-up lever disengagement drive mechanism comprises: a mounting seat for mounting a presser foot, a presser foot drive mechanism for driving the mounting seat to lift and reciprocate, a thread take-up lever having a transmission component, a thread take-up lever drive mechanism for driving the transmission component, and a disengagement drive assembly; when the mounting seat is lifted to its original position, the presser foot drive mechanism acts on the disengagement drive assembly, and the disengagement drive assembly acts on the transmission component, so that the transmission component moves laterally and is separated from the thread take-up lever drive mechanism.

[0007] As a further improvement of the present invention, the disengagement drive assembly includes a first matching structure and a second matching structure that are linked to each other; when the presser foot drive mechanism acts on the first matching structure, the second matching structure produces a linked action with a lateral moving stroke, and the second matching structure acts on the transmission component and separates the transmission component and the thread take-up rod drive mechanism.

[0008] As a further improvement of the present invention, the disengagement drive assembly has a rotating fulcrum; the presser foot drive mechanism is provided with a pushing member, and when the mounting seat is lifted to its original position, the pushing member pushes the first mating structure to rotate around the rotating fulcrum, and makes the second mating structure rotate synchronously around the rotating fulcrum, and the rotation stroke of the second mating structure has a displacement in the lateral direction.

[0009] As a further improvement of the present utility model, during the process of the mounting base being lifted from the lowest position or the working position to the original position, the pushing member is changed from a state of being separated from the first matching structure to a state of being in contact with the first matching structure; the thread take-up lever disengagement drive mechanism is provided with an elastic reset member, and the elastic reset member acts on the disengagement drive assembly or the transmission component of the thread take-up lever, and is used for resetting the disengagement drive assembly and the transmission component after the pushing member is separated from the first matching structure.

[0010] As a further improvement of the present invention, the drive disengagement assembly also includes a rotating shaft forming the rotation fulcrum, the extension direction of the rotation axis of the rotating shaft includes at least a vertical direction and a front-to-back direction, and the first matching structure and the second matching structure are both connected to the rotating shaft.

[0011] As a further improvement of the present invention, the first matching structure has a contact surface, and when the mounting seat is lifted from the lowest position or the working position to the original position, the pushing member slides or rolls on the contact surface.

[0012] As a further improvement of the present invention, the pushing member has a contact surface, and when the mounting seat is lifted from the lowest position or the working position to the original position, the first matching structure slides or rolls on the contact surface.

[0013] As a further improvement of the utility model, the press machine driving mechanism includes a presser foot driving motor, a transmission assembly, a vertically arranged guide rod, and a presser foot driving frame slidably connected to the guide rod; the transmission assembly is transmission-connected to the presser foot driving motor and the presser foot driving frame, and the presser foot driving frame drives the mounting seat; the pushing member is arranged on the presser foot driving frame.

[0014] As a further improvement of the utility model, the disengagement drive assembly and the presser foot drive motor are arranged outside the machine head, and the presser foot drive frame and the guide rod are arranged inside the machine head; the presser foot drive frame has a connecting portion that passes through the machine head, and the connecting portion connects the transmission assembly and the pushing member.

[0015] As a further improvement of the present utility model, the thread take-up lever and / or the transmission component are sleeved on a thread take-up lever shaft, and the thread take-up lever shaft is arranged transversely.

[0016] As a further improvement of the present invention, the thread take-up lever and the transmission component are connected, or the two are an integrated structure; the second matching structure acts on the transmission component to make the transmission component and the thread take-up lever move laterally.

[0017] As a further improvement of the present invention, the thread take-up lever and the transmission component are separate structures; the second matching structure acts on the transmission component to make the transmission component move laterally.

[0018] As a further improvement of the present invention, the second matching structure is movably connected to or contact-matched with the thread take-up lever shaft.

[0019] As a further improvement of the present utility model, the second mating structure is movably connected to the thread take-up lever shaft; the elastic reset member includes a first elastic reset member acting on the disengagement drive assembly, or the elastic reset member includes a second elastic reset member acting on the thread take-up lever shaft and / or the transmission component, or the elastic reset member includes a first elastic reset member acting on the disengagement drive assembly and a second elastic reset member acting on the thread take-up lever shaft and / or the transmission component.

[0020] As a further improvement of the present invention, the second mating structure contacts and cooperates with the thread take-up lever shaft; the elastic reset member includes a second elastic reset member acting on the thread take-up lever shaft and / or the transmission component, or the elastic reset member includes a first elastic reset member acting on the disengagement drive assembly and a second elastic reset member acting on the thread take-up lever shaft and / or the transmission component.

[0021] As a further improvement of the present invention, the second matching structure is movably connected or contact-matched with a transverse push structure, and the transverse push structure is used to drive the transmission component.

[0022] As a further improvement of the present invention, the second matching structure is movably connected to the transverse pushing structure; the elastic reset member includes a first elastic reset member acting on the disengagement driving assembly, or the elastic reset member includes a second elastic reset member acting on the thread take-up lever shaft, the transverse pushing structure, and at least one of the transmission components, or the elastic reset member includes a first elastic reset member acting on the disengagement driving assembly and a second elastic reset member acting on the thread take-up lever shaft, the transverse pushing structure, and at least one of the transmission components.

[0023] As a further improvement of the present invention, the second mating structure contacts and cooperates with the transverse pushing structure; the elastic reset member includes a second elastic reset member acting on at least one of the thread take-up lever shaft, the transverse pushing structure, and the transmission component, or the elastic reset member includes a first elastic reset member acting on the disengagement drive assembly and a second elastic reset member acting on at least one of the thread take-up lever shaft, the transverse pushing structure, and the transmission component.

[0024] As a further improvement of the present utility model, the transmission component is provided with a slot structure, and the thread take-up lever driving mechanism has a snap-in structure, or the transmission component is provided with a snap-in structure, and the thread take-up lever driving mechanism has a slot structure; the lateral movement of the transmission component causes the snap-in structure and the slot structure to snap into or separate engagement.

[0025] As a further improvement of the utility model, the thread take-up lever driving mechanism includes a cam sleeved on the main shaft and a rocker assembly with a rotating fulcrum; one end of the rocker assembly is movably connected to the cam, and the other end is provided with the snap-in structure or the slot structure.

[0026] As a further improvement of the present invention, the presser foot is used to cooperate with cord embroidery, and the presser foot guides and limits the cord so that the needle of the needle bar pierces the cord or the embroidery thread on the needle is bound to the cord.

[0027] An embroidery machine comprises the thread take-up lever disengagement driving mechanism.

[0028] Beneficial effects of the utility model:

[0029] Compared with the prior art, there is no need to separately set up a driver for driving the thread take-up rod and a matching transmission structure, so that the shutdown of the embroidery machine and the cessation of thread taking-up by the thread take-up rod can be synchronized. On the one hand, eliminating the need to set up a driver on the machine head can reduce costs, and reducing the structural composition of the machine head can also reduce the failure rate accordingly; on the other hand, the functional components in the machine head of the embroidery machine are highly integrated, and the space utilization rate is very limited. Reducing the structural composition can optimize the internal space layout. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The following is a detailed description of the preferred implementation examples of the present invention with reference to the accompanying drawings to help understand the purpose and advantages of the present invention, wherein:

[0031] Figure 1 It is a structural schematic diagram of the thread take-up lever disengaging driving mechanism;

[0032] Figure 2 It is a structural schematic diagram of the thread take-up lever driving mechanism;

[0033] Figure 3 It is a structural schematic diagram of the presser foot driving mechanism;

[0034] Figure 4 It is a schematic diagram of the structure of the disengagement drive assembly in the first embodiment;

[0035] Figure 5 It is a schematic diagram of the structure of the disengagement drive assembly in the second implementation mode;

[0036] Figure 6 It is a structural schematic diagram of the second matching structure and the thread take-up lever in the first implementation mode;

[0037] Figure 7 It is a schematic structural diagram of the second matching structure and the thread take-up lever in the second implementation mode. DETAILED DESCRIPTION

[0038] The utility model is further described in detail below based on the accompanying drawings and implementation cases.

[0039] The directional terms such as up, down, left, right, front, back, front, back, top, bottom, etc. mentioned or may be mentioned in this specification are defined relative to the structures shown in the drawings. The words "inside" and "outside" refer to the direction toward or away from the geometric center of a specific component, respectively. They are relative concepts, and therefore may change accordingly according to different locations and different usage conditions. Therefore, these or other directional terms should not be interpreted as restrictive terms.

[0040] Implementation Case 1:

[0041] A thread take-up lever disengages from a drive mechanism, referring to Figure 1-Figure 7 , arranged and applied on the head 6 of the embroidery machine, its main function is to disengage the thread take-up lever 2 from the drive, stop lowering the rope or embroidery thread, that is, stop taking up the thread.

[0042] The thread take-up lever disengagement drive mechanism of this embodiment includes a mounting seat 1, a presser foot drive mechanism, a thread take-up lever 2, a thread take-up lever drive mechanism, and a disengagement drive assembly 3. The mounting seat 1 can be equipped with a presser foot 11. According to actual application requirements, the mounting seat 1 can be equipped with a presser foot, other structures, or no structure. When the presser foot 11 is assembled, the presser foot driving mechanism is used to drive the mounting base 1 to rise and fall and move back and forth. The presser foot 11 presses the embroidery cloth to cooperate with the needle bar 7 for embroidery. The thread take-up lever 2 has a transmission component 21. The thread take-up lever driving mechanism can be combined with or separated from the transmission component 21. When the two are combined, the thread take-up lever driving mechanism drives the transmission component 21 to rotate reciprocatingly, thereby driving the thread take-up lever 2 to swing back and forth. One end of the thread take-up lever 2 has a thread take-up hole, and the rope or embroidery thread passes through the thread take-up hole. The rope or embroidery thread is continuously released downward through the reciprocating swing of the thread take-up lever 2, that is, the thread is picked up, matching the working state of the embroidery machine; when the two are separated, the thread take-up lever 2 stops swinging and stops picking up the thread, matching the shutdown state of the embroidery machine.

[0043] In this embodiment, the mounting seat 1 is set with three positions of different heights, which are the original position, the working position and the lowest position from high to low. When the mounting seat 1 is in the original position, the presser foot 11 can leave enough space to replace the embroidery cloth to match the shutdown state of the embroidery machine; when matching the working state of the embroidery machine, the mounting seat 1 is between the working position and the lowest position when in the working state, and is driven by the presser foot driving mechanism to move up and down reciprocatingly. When the mounting seat 1 is in the lowest position, the presser foot 11 can press the embroidery cloth.

[0044] When the embroidery machine finishes its work and stops, the mounting base 1 is lifted from the lowest position or working position to the original position. During this process, the presser foot driving mechanism acts on the disengagement driving assembly 3, and the disengagement driving assembly 3 acts on the transmission component 21, so that the transmission component 21 moves horizontally and separates from the thread take-up lever driving mechanism, that is, the transmission component 21 and the thread take-up lever driving mechanism are changed from a combined state to a separated state. It should be noted that the horizontal direction refers to the direction perpendicular to the needle bar 7.

[0045] The thread take-up rod of the present embodiment is disengaged from the driving mechanism, and the mechanical action of the mounting base 1 being lifted from the working position or the lowest position to the original position when the machine is stopped is utilized, and the presser foot driving mechanism is used as the driving force, and the transmission coordination of the disengaging driving assembly 3 is acted on the transmission component 21, and the transmission component 21 and the thread take-up rod driving mechanism are separated, so that the thread take-up rod 2 stops taking up the thread. Compared with the prior art, there is no need to separately set up a driver for driving the thread take-up rod 2 and a matching transmission structure, so that the shutdown of the embroidery machine and the cessation of the thread take-up rod 2 can be synchronized. On the one hand, eliminating the need to set up a driver on the machine head 6 can reduce costs, and reducing the structural composition of the machine head 6 can also reduce the failure rate accordingly; on the other hand, the functional components in the machine head 6 of the embroidery machine are highly integrated, and the space utilization rate is very limited. Reducing the structural composition can optimize the internal space layout.

[0046] In this embodiment, the disengagement drive assembly 3 includes a first matching structure 31 and a second matching structure 32, and the first matching structure 31 and the second matching structure 32 are in a mutually linked relationship. The mounting seat 1 is lifted from the working position or the lowest position to the original position, and when the mounting seat 1 acts on the first matching structure 31, the second matching structure 32 generates a corresponding linkage action, and the linkage action of the second matching structure 32 has a moving stroke in the lateral direction, and the second matching structure 32 acts on the transmission component 21, so that the transmission component 21 can move laterally and separate from the thread take-up lever driving mechanism.

[0047] Regarding the connection and separation relationship between the transmission component 21 and the thread take-up rod driving mechanism, in the present embodiment, the transmission component 21 is provided with a slot structure 211, and the thread take-up rod driving mechanism has a snap-in structure 41. The lateral movement of the transmission component 21 causes the snap-in structure 41 and the slot structure 211 to snap-fit ​​or separate. When the snap-in structure 41 and the slot structure 211 are snap-fit, that is, the transmission component 21 and the thread take-up rod driving mechanism are in a connection state, the thread take-up rod driving mechanism can drive the thread take-up rod 2 to swing back and forth; when the snap-in structure 41 and the slot structure 211, that is, the transmission component 21 and the thread take-up rod driving mechanism are in a separation state, the thread take-up rod 2 stops swinging back and forth and stops taking up the thread.

[0048] Regarding the thread take-up lever driving mechanism, refer to Figure 2, the thread take-up lever driving mechanism includes a cam 42 and a rocker assembly 43. The main shaft 5, as the power shaft of the embroidery machine, runs through each machine head 6 horizontally, and is used to drive the needle bar 7 and the thread take-up lever 2. The cam 42 is sleeved on the main shaft 5. The rocker assembly 43 has a rotation fulcrum 431, one end of which is movably connected to the cam 42, and the other end is provided with the snap-in structure 41. More specifically, the rocker assembly 43 is composed of a rotating shaft and two rockers connected to the rotating shaft, one end of which is movably set in the cam groove of the cam 42, and the other rocker is provided with the snap-in structure 41. The snap-in structure 41 can be set as a bearing, so that the snap-in structure 41 and the snap-in groove structure 211 are in a snap-fit ​​state to reduce the friction caused by the reciprocating swing.

[0049] As for the disengagement drive assembly 3, more specifically, in this embodiment, the disengagement drive assembly 3 has a rotation fulcrum, the presser foot drive mechanism is provided with a pusher 85, and the mounting seat 1 is driven by the presser foot drive mechanism. In the process of being lifted from the working position or the lowest position to the original position, the pusher 85 pushes the first matching structure 31 to rotate around the rotation fulcrum, so that the disengagement drive assembly 3 rotates around the rotation fulcrum, that is, the second matching structure 32 rotates synchronously around the rotation fulcrum, that is, the first matching structure 31 and the second matching mechanism complete the interlocking action. In addition, the rotation direction of the disengagement drive assembly 3 is suitable for the rotation stroke of the second matching structure 32 to have a displacement in the lateral direction, so that the synchronous rotation of the second matching structure 32 around the rotation fulcrum can produce a lateral movement stroke, and then the second matching structure 32 acts on the transmission component 21 and separates the transmission component 21 from the thread take-up lever drive mechanism.

[0050] In this embodiment, when the mounting seat 1 is lifted from the lowest position or the working position to the original position, the pushing member 85 changes from a state of being separated from the first matching structure 31 to a state of being in contact with it, that is, when the mounting seat 1 is in the working state, that is, when the mounting seat 1 is lifted and reciprocated between the working position and the lowest position, the pushing member 85 and the first matching structure 31 are in a state of being separated, so as not to affect the normal thread taking action of the thread take-up lever 2. When the mounting seat 1 is lifted to the original position, the pushing member 85 contacts the first matching structure 31, and the transmission component 21 is separated from the thread take-up lever driving mechanism. The thread take-up lever disengagement drive mechanism is provided with an elastic reset member, and the elastic reset member acts on the disengagement drive component 3 or the transmission component 21 of the thread take-up lever 2, and is used for resetting the disengagement drive component 3 and the transmission component 21 after the push member 85 and the first matching structure 31 are separated, so that when the embroidery machine starts to work and the mounting seat 1 descends from the original position to the working position and starts to move up and down between the working position and the lowest position, the transmission component 21 and the thread take-up lever drive mechanism are changed from a separated state to a combined state, and the thread take-up lever 2 starts to take up the thread.

[0051] In this implementation case, refer to Figure 3 , the presser foot driving mechanism comprises the presser foot driving motor 81, a transmission assembly 82, a guide rod 83, and a presser foot driving frame 84. The guide rod 83 is vertically arranged, the presser foot driving frame 84 is slidably sleeved on the guide rod 83, the transmission assembly 82 is transmission-connected to the presser foot driving motor 81 and the presser foot driving frame 84, and the transmission assembly 82 can be specifically arranged as a transmission belt or a transmission connecting rod. The presser foot driving frame 84 drives the mounting seat 1, and the pusher 85 is arranged on the presser foot driving frame 84, that is, the mounting seat 1 is indirectly provided with the pusher 85. When the presser foot driving motor 81 is driven, the presser foot driving frame 84 is driven to slide along the guide rod 83 by the transmission assembly 82, and then the mounting seat 1 is driven to move up and down between the working position and the lowest position, or to be lifted from the lowest position or the working position to the original position, and the pusher 85 is also synchronously moved vertically.

[0052] More specifically, the mounting seat 1 is arranged on the sleeve 13, and can be specifically arranged at the bottom of the sleeve 13. The sleeve 13 is slidably sleeved on the needle rod 7. A connecting structure 12 is arranged on the top of the sleeve 13. The presser foot driving frame 84 is connected to the connecting structure 12, so that the presser foot driving frame 84 drives the mounting seat 1 and the presser foot 11 to move up and down and reciprocate.

[0053] In this embodiment, the disengagement drive assembly 3 and the presser foot drive motor 81 are arranged outside the machine head 6, the guide rod 83 and the presser foot drive frame 84 are arranged inside the machine head 6, the presser foot drive frame 84 has a connecting portion 841 passing through the machine head 6, the machine head 6 has a through groove passed by the connecting portion 841 and extending vertically to avoid the lifting and lowering movement of the connecting portion 841, and the connecting portion 841 connects the transmission assembly 82 and the pushing member 85.

[0054] In this implementation case, refer to Figure 4 More specifically, in the first embodiment, the structure of the disengagement drive assembly is as follows: a bearing seat 34a is provided on the outer wall of the machine head 6, and the disengagement drive assembly 3 also has a rotating shaft 35a arranged in the bearing seat 34a, the rotating shaft 35a serves as a rotation fulcrum of the disengagement drive assembly 3, and the rotation axis of the rotating shaft 35a extends along the front and rear directions, the first matching structure 31 and the second matching structure 32 are respectively connected to the front and rear ends of the rotating shaft 35a, the first elastic reset member 33 is set as a torsion spring and is sleeved on the rotating shaft 35a, and the rotation of the first matching structure 31 and the second matching structure 32 around the rotating shaft 35a is a rotation on a vertical plane.

[0055] In addition, the first matching structure 31 has a contact surface 311. When the mounting seat 1 is lifted from the lowest position or the working position to the original position, the pushing member 85 slides or rolls on the contact surface. Preferably, the pushing member 85 is set as a roller. The rolling matching between the roller and the contact surface 311 can reduce friction, friction damage and noise.

[0056] In this implementation case, refer to Figure 5 More specifically, in the second embodiment, the structure of the disengagement drive assembly is as follows: a bearing seat 34 is provided on the outer wall of the machine head 6, and the disengagement drive assembly 3 also has a rotating shaft 35b arranged in the bearing seat 34, the rotating shaft 35b serves as a rotation fulcrum of the disengagement drive assembly 3, and the rotation axis of the rotating shaft 35b extends along the front up and down direction, the first matching structure 31 is connected to the middle part of the rotating shaft 35b, the second matching structure 32 is connected to the top end of the rotating shaft 35b, the first elastic reset member 33 (not shown in the figure) is configured as a torsion spring and is sleeved on the rotating shaft 35b, and the rotation of the first matching structure 31 and the second matching structure 32 around the rotating shaft 35b is a rotation on a horizontal plane.

[0057] In addition, the pushing member 85 has a contact surface 851. When the mounting seat 1 is lifted from the lowest position or the working position to the original position, the first mating structure 31 slides or rolls on the contact surface. A roller can be arranged on the first mating structure 31 to reduce friction damage by rolling with the contact surface 851.

[0058] In this embodiment, the thread take-up lever 2 and / or the transmission component 21 are sleeved on the thread take-up lever shaft 22. The thread take-up lever 2 is laterally arranged on the machine head 6. The thread take-up lever 2 and the transmission component 21 can be fixedly sleeved on the thread take-up lever shaft 22 or movably sleeved on the thread take-up lever shaft 22. The specific connection relationship depends on the situation.

[0059] Regarding the structural relationship between the thread take-up lever 2 and the transmission component 21, in the first embodiment, the thread take-up lever 2 and the transmission component 21 are connected, or the two are an integral structure, that is, the thread take-up lever 2 and the transmission component 21 are inseparable. In this embodiment, the second matching structure 32 acts on the transmission component 21, so that the transmission component 21 and the thread take-up lever 2 move laterally together.

[0060] Regarding the structural relationship between the thread take-up lever 2 and the transmission component 21, in the second embodiment, the thread take-up lever 2 and the transmission component 21 are split structures, and the second matching structure 32 acts on the transmission component 21 to make the transmission component 21 move laterally, so that the transmission component 21 and the thread take-up lever 2 are separated, that is, the thread take-up lever 2 stops taking up the thread.

[0061] Regarding the manner in which the second matching structure 32 acts on the transmission component 21, in the first embodiment, refer to Figure 6 The second matching structure 32 is movably connected to the thread take-up lever shaft 22 or contacts and matches the thread take-up lever shaft 22. The second matching structure 32 drives the thread take-up lever shaft 22 to move laterally, and then drives the transmission component 21 to move laterally.

[0062] When the second matching structure 32 is movably connected to the thread take-up lever shaft 22, a groove is provided on the thread take-up lever shaft 22, and a buckle restricted in the groove is provided on the second matching structure 32, so that the rotation of the second matching structure 32 can drive the lateral movement of the thread take-up lever shaft 22. There are three ways to set the elastic reset member, which are: in the first case, the elastic reset member includes a first elastic reset member 33 acting on the disengagement drive assembly 3; in the second case, the elastic reset member includes a second elastic reset member 23 acting on the thread take-up lever shaft 22 or / and the transmission component 21; in the third case, the elastic reset member includes a first elastic reset member 33 acting on the disengagement drive assembly 3 and a second elastic reset member 23 acting on the thread take-up lever shaft 22 or / and the transmission component 21.

[0063] When the second matching structure 32 contacts and matches the thread take-up lever shaft 22, the two are separated. When the second matching structure 32 rotates, it contacts the thread take-up lever shaft 22 and pushes it to move horizontally. There are two ways to set the elastic reset member. In the first case, the elastic reset member includes a second elastic reset member 23 acting on the thread take-up lever shaft 22 and / or the transmission component 21; in the second case, the elastic reset member includes a first elastic reset member 33 acting on the disengagement drive assembly 3 and a second elastic reset member 23 acting on the thread take-up lever shaft 22 and / or the transmission component 21.

[0064] Regarding the manner in which the second matching structure 32 acts on the transmission component 21, in the second embodiment, refer to Figure 7 , the second matching structure 32 is movably connected with a transverse push structure 24 or a transverse push structure 24. The transverse push structure 24 is used to drive the transmission component 21, and the rotation of the second matching structure 32 can drive the transverse push structure 24 to move horizontally, and the lateral movement of the transverse push structure 24 can move the transmission component 21 horizontally. More specifically, the transverse push structure 24 includes a connected cross bar 241 and a connecting plate 242, the cross bar 241 and the second matching structure 32 are movably connected, the connecting plate 242 can be connected to the transmission component 21, so as to directly drive the transmission component 21, or the connecting plate 242 can be connected to the thread take-up lever shaft 22, and the transmission component 21 is fixedly sleeved on the thread take-up lever shaft 22, or the connecting plate 242 and the transmission component 21 can be in contact and matched.

[0065] When the second matching structure 32 is movably connected to the transverse pushing structure 24, there are three ways to set the elastic reset member, which are: in the first case, the elastic reset member includes a first elastic reset member 33 acting on the disengagement drive component 3; in the second case, the elastic reset member includes a second elastic reset member 23 acting on at least one of the thread take-up lever shaft 22, the transmission component 21, and the transverse pushing structure 24; in the third case, the elastic reset member includes a first elastic reset member 33 acting on the disengagement drive component 3 and a second elastic reset member 23 acting on at least one of the thread take-up lever shaft 22, the transmission component 21, and the transverse pushing structure 24.

[0066] When the second mating structure 32 contacts the mating transverse pushing structure 24, there are two ways to set the elastic reset member. In the first case, the elastic reset member includes a second elastic reset member 23 acting on at least one of the thread taking-up lever shaft 22, the transmission component 21, and the transverse pushing structure 24; In the second case, the elastic reset member includes a first elastic reset member 33 acting on the disengagement drive assembly 3 and a second elastic reset member 23 acting on at least one of the thread taking-up lever shaft 22, the transmission component 21, and the transverse pushing structure 24.

[0067] The thread take-up lever of this embodiment is separated from the driving mechanism and applied to the head 6 of the embroidery machine. The head 6 can be a coiled embroidery head or a flat embroidery head. For example, the head 6 of this embodiment is a coiled embroidery head 6, so the presser foot 11 is used to cooperate with the cord embroidery. The presser foot 11 guides and limits the cord so that the needle of the needle bar 7 pierces the cord or the embroidery thread on the needle is bound to the cord.

[0068] Implementation Case 2:

[0069] An embroidery machine includes a thread take-up rod disengagement drive mechanism, wherein the thread take-up rod disengagement drive mechanism is shown in implementation case 1.

[0070] Finally, it should be noted that the above implementation cases are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the above implementation cases, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above implementation cases, or replace some of the technical features therein with equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the implementation cases of the utility model.

Claims

1. A thread take-up lever disengagement drive mechanism, characterized in that: include: It includes a mounting base on which a presser foot can be mounted, a presser foot driving mechanism for driving the mounting base to lift and reciprocate, a thread take-up lever with a transmission component, a thread take-up lever driving mechanism for driving the transmission component, and a disengagement driving assembly; when the mounting base is lifted to its original position, the presser foot driving mechanism acts on the disengagement driving assembly, and the disengagement driving assembly acts on the transmission component, so that the transmission component moves laterally and is separated from the thread take-up lever driving mechanism.

2. The thread take-up lever disengagement driving mechanism according to claim 1, characterized in that: The disengagement drive assembly includes a first matching structure and a second matching structure that are linked to each other; when the presser foot drive mechanism acts on the first matching structure, the second matching structure produces a linkage action with a lateral movement stroke, and the second matching structure acts on the transmission component and separates the transmission component and the thread take-up lever drive mechanism.

3. The thread take-up lever disengagement driving mechanism according to claim 2, characterized in that: The disengagement drive assembly has a rotation fulcrum; the presser foot drive mechanism is provided with a pushing member, and when the mounting seat is lifted to its original position, the pushing member pushes the first mating structure to rotate around the rotation fulcrum, and makes the second mating structure rotate synchronously around the rotation fulcrum, and the rotation stroke of the second mating structure has a displacement in the lateral direction.

4. The thread take-up lever disengagement driving mechanism according to claim 3, characterized in that: During the process of the mounting base being lifted from the lowest position or the working position to the original position, the pushing member changes from a state of being separated from the first matching structure to a state of being in contact with the first matching structure; the thread take-up lever disengagement drive mechanism is provided with an elastic reset member, and the elastic reset member acts on the disengagement drive assembly or the transmission component of the thread take-up lever, and is used for resetting the disengagement drive assembly and the transmission component after the pushing member is separated from the first matching structure.

5. The thread take-up lever disengagement driving mechanism according to claim 4, characterized in that: The drive disengagement assembly also includes a rotating shaft forming the rotating fulcrum, the extension direction of the rotating axis of the rotating shaft includes at least a vertical direction and a front-to-back direction, and the first matching structure and the second matching structure are both connected to the rotating shaft.

6. The thread take-up lever disengagement driving mechanism according to claim 4, characterized in that: The first matching structure has a contact surface, and when the mounting seat is lifted from the lowest position or the working position to the original position, the pushing member slides or rolls on the contact surface.

7. The thread take-up lever disengagement driving mechanism according to claim 4, characterized in that: The pushing member has a contact surface, and when the mounting seat is lifted from the lowest position or the working position to the original position, the first matching structure slides or rolls on the contact surface.

8. The thread take-up lever disengagement driving mechanism according to claim 3, characterized in that: The presser foot driving mechanism includes a presser foot driving motor, a transmission assembly, a vertically arranged guide rod, and a presser foot driving frame slidably connected to the guide rod; the transmission assembly is transmission-connected to the presser foot driving motor and the presser foot driving frame, and the presser foot driving frame drives the mounting seat; the pushing member is arranged on the presser foot driving frame.

9. The thread take-up lever disengagement driving mechanism according to claim 8, characterized in that: The disengagement drive assembly and the presser foot drive motor are arranged outside the machine head, and the presser foot drive frame and the guide rod are arranged inside the machine head; the presser foot drive frame has a connecting part that passes through the machine head, and the connecting part connects the transmission assembly and the pushing member.

10. The thread take-up lever disengagement driving mechanism according to claim 4, characterized in that: The thread take-up lever and / or the transmission component are sleeved on the thread take-up lever shaft, and the thread take-up lever shaft is arranged transversely.

11. The thread take-up lever disengagement driving mechanism according to claim 10, characterized in that: The thread take-up lever is connected to the transmission component, or the two are an integrated structure; the second matching structure acts on the transmission component to make the transmission component and the thread take-up lever move laterally.

12. The thread take-up lever disengagement driving mechanism according to claim 10, characterized in that: The thread take-up lever and the transmission component are separate structures; the second matching structure acts on the transmission component to make the transmission component move laterally.

13. The thread take-up lever disengagement driving mechanism according to claim 11 or 12, characterized in that: The second matching structure is movably connected or contact-matched with the thread take-up lever shaft.

14. The thread take-up lever disengagement driving mechanism according to claim 13, characterized in that: The second matching structure is movably connected to the thread take-up lever shaft; the elastic reset member includes a first elastic reset member acting on the disengagement drive assembly, or the elastic reset member includes a second elastic reset member acting on the thread take-up lever shaft and / or the transmission component, or the elastic reset member includes a first elastic reset member acting on the disengagement drive assembly and a second elastic reset member acting on the thread take-up lever shaft and / or the transmission component.

15. The thread take-up lever disengagement driving mechanism according to claim 13, characterized in that: The second mating structure contacts and cooperates with the thread take-up lever shaft; the elastic reset member includes a second elastic reset member acting on the thread take-up lever shaft and / or the transmission component, or the elastic reset member includes a first elastic reset member acting on the disengagement drive assembly and a second elastic reset member acting on the thread take-up lever shaft and / or the transmission component.

16. The thread take-up lever disengagement driving mechanism according to claim 11 or 12, characterized in that: The second matching structure is movably connected or contact-matched with a transverse push structure, and the transverse push structure is used to drive the transmission component.

17. The thread take-up lever disengagement driving mechanism according to claim 16, characterized in that: The second matching structure is movably connected to the transverse pushing structure; the elastic reset member includes a first elastic reset member acting on the disengagement driving assembly, or the elastic reset member includes a second elastic reset member acting on at least one of the thread take-up lever shaft, the transverse pushing structure, and the transmission component, or the elastic reset member includes a first elastic reset member acting on the disengagement driving assembly and a second elastic reset member acting on at least one of the thread take-up lever shaft, the transverse pushing structure, and the transmission component.

18. The thread take-up lever disengagement driving mechanism according to claim 16, characterized in that: The second mating structure contacts and cooperates with the transverse pushing structure; the elastic reset member includes a second elastic reset member acting on at least one of the thread take-up lever shaft, the transverse pushing structure, and the transmission component, or the elastic reset member includes a first elastic reset member acting on the disengagement drive assembly and a second elastic reset member acting on at least one of the thread take-up lever shaft, the transverse pushing structure, and the transmission component.

19. The thread take-up lever disengagement driving mechanism according to claim 1, characterized in that: The transmission component is provided with a slot structure, and the thread take-up lever driving mechanism has a snap-in structure, or the transmission component is provided with a snap-in structure, and the thread take-up lever driving mechanism has a slot structure; the lateral movement of the transmission component causes the snap-in structure and the slot structure to engage or separate.

20. The thread take-up lever disengagement driving mechanism according to claim 19, characterized in that: The thread take-up lever driving mechanism comprises a cam sleeved on a main shaft and a swing arm assembly having a rotation fulcrum; one end of the swing arm assembly is movably connected to the cam, and the other end is provided with the snap-in structure or the slot structure.

21. The thread take-up lever disengagement driving mechanism according to claim 1, characterized in that: The presser foot is used to cooperate with cord embroidery. The presser foot guides and limits the cord so that the needle of the needle bar pierces the cord or the embroidery thread on the needle is bound to the cord.

22. An embroidery machine, characterized in that: The invention comprises the thread take-up lever disengagement driving mechanism as described in any one of claims 1 to 21.

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