Tape embroidery machine head presser foot driving device and taping embroidery machine

Abstract

The utility model discloses a taping embroidery machine head presser foot driving device and a taping embroidery machine, and belongs to the technical field of taping embroidery, the presser foot driving device comprises a presser foot sleeve, a presser foot shaft movably nested in the presser foot sleeve, a presser foot sleeve driving part for driving the presser foot sleeve to rotate and a presser foot lifting part for driving the presser foot shaft to lift, the presser foot sleeve drives the presser foot shaft to rotate while rotating, the presser foot lifting component comprises a presser foot lifting shifting fork connected with the presser foot shaft, a presser foot guide block connected with the presser foot lifting shifting fork and a presser foot driving block driving the presser foot guide block to ascend and descend, the presser foot guide block is provided with a guide hole, and the guide hole is movably nested in the outer side of the swing rod. The swing rod is driven by a swing rod lifting component to ascend and descend, the bottom of the swing rod is connected with a sliding sleeve, the presser foot sleeve is nested on the inner side of the M shaft sleeve, and the sliding sleeve is nested on the outer side of the M shaft sleeve in a sliding mode. Due to the fact that the swing rods are designed coaxially, one shaft can be omitted, the structure is more compact, and cost is lower.

Description

A pressure foot drive device for a tape embroidery machine and a tape embroidery machine Technical Field

[0001] This utility model belongs to the technical field of embroidery equipment, specifically relating to a ribbon embroidery machine. Background Technology

[0002] Referring to existing technologies for presser foot drive devices in ribbon embroidery machines, a presser foot drive assembly is used to drive the presser foot via a presser foot transmission assembly. For example, Chinese utility model patent CN203096389U provides a presser foot mechanism for a ribbon embroidery machine head. This mechanism is mounted on a machine housing and includes: a presser foot; a presser foot transmission assembly including a lower sleeve, a needle bar sleeve, and a slide rod. The lower sleeve is fixedly mounted on the machine housing, and the needle bar sleeve is slidably and rotatably fitted within the lower sleeve; the slide rod is arranged parallel to the needle bar sleeve within the machine housing, wherein the upper end of the needle bar sleeve is connected to a presser foot fork, and the lower end is connected to the presser foot, with the presser foot fork fitted onto the slide rod; the presser foot drive assembly is mounted on the outside of the machine housing and includes a presser foot motor, a presser foot timing pulley, and a presser foot timing belt mounted on the timing pulley; under the forward and reverse drive of the presser foot motor, the presser foot timing belt drives the presser foot fork to slide up and down on the slide rod, and the presser foot also jumps up and down along with the needle bar sleeve connected to the other end of the presser foot fork. However, existing technology requires a separate slide bar to be installed on the head housing. As the functions and components of the ribbon embroidery head increase, the installation of the slide bar affects the arrangement of other components and limits the expansion of the ribbon embroidery head's functions. Summary of the Invention

[0003] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a pressure foot drive device for a ribbon embroidery machine head and a ribbon embroidery machine, which can avoid the setting of the slide bar from affecting the arrangement of other components.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] First, a presser foot drive device for a ribbon embroidery machine head is provided, including a presser foot sleeve and a presser foot shaft movably nested within the presser foot sleeve, a presser foot sleeve drive component for driving the presser foot sleeve to rotate, and a presser foot lifting component for driving the presser foot shaft to rise and fall. The presser foot sleeve drives the presser foot shaft to rotate while rotating. The presser foot lifting component includes a presser foot lifting fork connected to the presser foot shaft, a presser foot guide block connected to the presser foot lifting fork, and a presser foot drive block for driving the presser foot guide block to rise and fall. The presser foot guide block has a guide hole, which is movably nested outside a swing arm. The swing arm is driven to rise and fall by a swing arm lifting component. A sliding sleeve is connected to the bottom of the swing arm. The presser foot sleeve is nested inside an M-shaft sleeve, and the sliding sleeve is slidably nested outside the M-shaft sleeve.

[0006] Preferably, the presser foot lifting component includes a presser foot lifting motor and a third transmission belt assembly driven by the presser foot lifting motor. The third transmission belt assembly is provided with a third transmission belt, and the third transmission belt is connected to the presser foot driving block.

[0007] Preferably, the presser foot guide block has an upper limit part and a lower limit part, the presser foot drive block has a drive sleeve, the drive sleeve is movably nested on the outside of the swing rod and is located between the upper limit part and the lower limit part, the swing rod is movably nested with a presser foot spring, and the bottom end of the presser foot spring abuts against the lower limit part and the top end abuts against the bottom surface of the drive sleeve.

[0008] Preferably, a linear bearing is provided between the drive sleeve and the rocker arm.

[0009] Preferably, the presser foot sleeve driving component includes a presser foot sleeve driving motor for driving the presser foot sleeve to rotate, the axial direction of the presser foot sleeve driving motor is parallel to the axial direction of the presser foot sleeve, and a second transmission belt assembly is provided between the motor shaft of the presser foot sleeve driving motor and the presser foot sleeve.

[0010] Preferably, the second drive belt assembly includes a second pulley mounted on the pressure foot sleeve via a needle roller bearing.

[0011] Preferably, the presser foot shaft is provided with a keyway, and the second pulley is provided with a transmission key that mates with the keyway.

[0012] Preferably, the lower part of the second pulley is provided with a bearing mounting hole, the upper end of which is matched with the upper end of the pressure foot sleeve; and / or, the outer circle of the upper end of the pressure foot sleeve is provided with a positioning step that matches the positioning of the needle roller bearing.

[0013] Preferably, the swing arm lifting component includes a swing arm lifting motor and a fourth transmission belt assembly driven by the swing arm lifting motor. The fourth transmission belt assembly is provided with a fourth transmission belt, and the fourth transmission belt is connected to a swing arm lifting block. The swing arm lifting block drives the swing arm to lift and lower.

[0014] Secondly, a ribbon embroidery machine is provided, including a ribbon embroidery machine head, wherein the ribbon embroidery machine head is provided with the presser foot drive device.

[0015] The technical solution adopted in this utility model has the following beneficial effects:

[0016] A rocker arm is installed on the head housing. The rocker arm is a common functional component of ribbon embroidery heads. The presser foot guide block has a guide hole that is movably nested on the outside of the rocker arm. Therefore, the rocker arm can guide the presser foot guide block without the need for a separate sliding rod. Furthermore, the rocker arm expands the functionality of the ribbon embroidery head. The rocker arm is driven to rise and fall by a rocker arm lifting mechanism. A sliding sleeve is connected to the bottom of the rocker arm, which can connect to grooved or other functional components.

[0017] Since the rocker arm can drive the sliding sleeve to slide up and down along the M-axis sleeve and drive the grooved or other functional components to rise and fall, and at the same time, the rocker arm also serves as the guide shaft for the pressure foot drive block and the pressure foot guide block, the coaxial design can reduce one shaft, that is, eliminate the separately set sliding rod in the prior art, resulting in a more compact structure and lower cost.

[0018] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description

[0019] The utility model will be further described below with reference to the accompanying drawings:

[0020] Figure 1 is a partial structural schematic diagram of the head of the embroidery machine with a disc-shaped belt according to this utility model;

[0021] Figure 2 is a structural schematic diagram of the M-axis assembly in this utility model;

[0022] Figure 3 is a structural schematic diagram of the M-axis assembly in this utility model;

[0023] Figure 4 is a structural schematic diagram of the M-axis assembly in this utility model;

[0024] Figure 5 is a partial structural schematic diagram of the M-axis drive structure in this utility model;

[0025] Figure 6 is a partial structural schematic diagram of the M-axis assembly in this utility model;

[0026] Figure 7 is a partial enlarged structural diagram of Figure 1;

[0027] Figure 8 is a partial structural schematic diagram of the M-axis drive structure in this utility model;

[0028] Figure 9 is a partial enlarged structural diagram of Figure 8;

[0029] Figure 10 is a partial enlarged structural diagram of Figure 8;

[0030] Figure 11 is a structural schematic diagram of the disc-type embroidery thread-picking clutch mechanism of this utility model;

[0031] Figure 12 is a structural schematic diagram of the disc-type embroidery thread-picking clutch mechanism of this utility model;

[0032] Figure 13 is an enlarged structural diagram of point A in Figure 12;

[0033] Reference numerals: M-axis assembly 1, M-axis sleeve 11, first ball positioning step 111, second ball positioning step 112, presser foot sleeve 12, fixing flange 121, rocker arm through hole 1211, ball 122, limiting sleeve 123, needle roller bearing 124, presser foot shaft 13, presser foot 131, keyway 132, presser foot lifting seat 133, needle bar guide 134, needle bar guide hole 1341, needle bar clamp 1342, independent needle bar 14. Embroidery needle 141, independent needle bar auxiliary shaft 15, sliding sleeve 16, material belt tensioner 161, groove 162, second transmission pulley 17, transmission key 171, M-axis drive structure 2, M-axis drive motor 21, first transmission belt assembly 22, presser foot sleeve drive component 3, presser foot sleeve drive motor 31, second transmission belt assembly 32, presser foot lifting component 4, presser foot lifting motor 41, third transmission belt 42, presser foot drive block 43, drive sleeve 431. Presser foot guide block 44, upper limit part 441, lower limit part 442, presser foot lifting fork 45, grooved lifting component 5, grooved lifting motor 51, fourth transmission belt 52, grooved drive block 53, swing arm 54, swing arm fork 55, reel component 6; thread take-up clutch mechanism 8, thread take-up rod assembly 81, clutch slide rail component 82, clutch slider 821, U-shaped groove 8211, clutch guide hole 8212, clutch guide groove 8213, ear plate 82 14, drive groove 8215, thread take-up shaft 822, clutch guide rod 823, thread take-up connecting rod assembly 83, first connecting rod 831, second connecting rod 832, connecting rod bushing 833, drive pin 834, clutch pull rod 84, second pin 841, pull rod clamp 842, clutch connecting rod 85, connecting rod pin 851, first elongated groove 852, second elongated groove 853, clutch motor 86, clutch wheel 87, first pin 871, mounting beam 9. Detailed Implementation

[0034] The technical solutions of the present utility model will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the present utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present utility model.

[0035] Those skilled in the art will understand that, without conflict, the features in the following embodiments and implementations can be combined with each other.

[0036] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. For example, terms such as "upper," "lower," "front," "rear," and "lateral," which indicate orientation or positional relationship, are based solely on the orientation or positional relationship shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device / component referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "fixation," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0038] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0039] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0040] Referring to existing ribbon embroidery machines, a mounting beam extends laterally, and several ribbon embroidery heads are mounted side-by-side on the mounting beam. Each ribbon embroidery head includes a head housing and ribbon embroidery head components mounted on the head housing, with each component including a needle bar driver. To achieve flat embroidery, flat embroidery heads can be spaced apart between the ribbon embroidery heads. Each flat embroidery head also includes a head housing and flat embroidery head components mounted on the head housing, with each component including a needle bar driver. In other words, ribbon embroidery heads and flat embroidery heads are spaced apart along the lateral direction of the mounting beam, allowing ribbon embroidery and flat embroidery to operate separately as needed.

[0041] In this embodiment, the extension direction of the mounting beam is defined as the transverse direction, and the direction perpendicular to the crossbeam is defined as the front-back direction. The tape embroidery machine is equipped with a main shaft that extends transversely and passes through each machine head housing. The main shaft serves as a power source to drive the needle bar driver.

[0042] In the ribbon embroidery machine head, the needle bar driver drives the needle bar to reciprocate up and down, so that the embroidery needle at the bottom of the needle bar can embroider the ribbon onto the fabric. In addition, the machine head housing is equipped with a thread take-up lever assembly and a corresponding thread take-up lever driver. The thread take-up lever assembly is corresponding to the needle bar. During the needle bar's operation, the thread take-up lever driver is used to drive the thread take-up lever assembly to take up the thread.

[0043] In addition, the ribbon embroidery machine head assembly also includes a ribbon reel assembly, which includes a ribbon reel bracket. A ribbon reel is rotatably mounted on the ribbon reel bracket, and the ribbon reel stores the ribbon roll. The ribbon reel assembly is installed on the M-axis assembly. During the ribbon embroidery process, the ribbon is drawn from the ribbon reel and fed into the presser foot. Usually, at least two ribbon reel brackets are installed. Taking the setting of two ribbon reel brackets as an example, they are symmetrically arranged on the left and right sides of the M-axis assembly in the radial direction.

[0044] Referring to Figures 1 to 10, this embodiment provides a tape embroidery machine, including an M-axis assembly 1, an M-axis drive structure 2, and a tape reel component 6 connected to the M-axis assembly 1. The M-axis assembly 1 includes an M-axis sleeve 11, a presser foot sleeve 12 nested within the M-axis sleeve, ball bearings 122 disposed between the M-axis sleeve 11 and the presser foot sleeve 12, and a presser foot shaft 13 movably nested within the presser foot sleeve. The presser foot shaft 13 has a hollow structure, with an independent needle rod 14 movably nested inside. The presser foot sleeve 12 is fixed to the machine head housing, and the M-axis sleeve 11 and the presser foot shaft 13 are movable relative to the presser foot sleeve 12, while the independent needle rod 14 is movable relative to the presser foot shaft 13. The M-axis drive structure 2 includes an M-axis drive component for driving the M-axis sleeve 11 to rotate, a presser foot sleeve drive component 3 for driving the presser foot sleeve to rotate and thus rotating the presser foot shaft, and a presser foot lifting component 4 for driving the presser foot shaft to rise and fall. A presser foot 131 is mounted at the bottom of the presser foot shaft, and an embroidery needle 141 is mounted at the bottom of the independent needle rod.

[0045] Compared to existing technologies that use fixed sleeves, this embodiment employs a nested structure of M-axis sleeve, presser foot sleeve, presser foot shaft, and needle bar, but does not use fixed sleeves. Instead, the presser foot sleeve is fixed to the machine head housing. Reducing the number of fixed sleeves simplifies the structure of the M-axis assembly, thereby reducing the overall diameter of the M-axis assembly, saving space, and further reducing the width of the embroidery machine head, which allows for the installation of more machine heads on the mounting beam.

[0046] To ensure coaxiality between the M-sleeve and the pressure foot sleeve, and to guarantee their flexible rotation, a bearing can be installed between them. However, installing a bearing increases the clearance between the M-sleeve and the pressure foot sleeve, resulting in an increase in the overall diameter of the M-axis assembly, thus negating the effect of reducing the size of the retaining sleeve. Therefore, this embodiment uses ball bearings between the M-sleeve and the pressure foot sleeve, eliminating the need for a separate bearing. Compared to installing a bearing, this method results in a more compact structure and reduces the overall diameter of the M-axis assembly.

[0047] As shown in Figures 2 to 4, the upper outer circle of the pressure foot sleeve and the upper inner circle of the M-sleeve are respectively provided with a first ball positioning step 111, and the first ball positioning step is provided with a raceway that mates with the ball 122. The pressure foot sleeve is fixed to the lower side of the M-sleeve with a limiting sleeve 123. The lower inner circle of the M-sleeve and the upper outer circle of the limiting sleeve are respectively provided with a second ball positioning step 112, and the second ball positioning step is provided with a raceway that mates with the ball 122. In this way, the raceway can be directly machined on the pressure foot sleeve, the M-sleeve, and the limiting sleeve. The machining accuracy can be referenced to that of a bearing. Therefore, the effect is similar to that of installing a bearing, but the structure is much simpler, the number of parts is reduced, and the cost is also reduced.

[0048] Furthermore, to fix the M-axis assembly to the head housing, the presser foot sleeve 12 has a fixing flange 121 above the M-axis sleeve 11, and the fixing flange 121 is fixed to the head housing of the embroidery machine head. Additionally, the fixing flange has a rocker arm through hole 1211, through which the rocker arm 54 passes and can move up and down. To connect the presser foot shaft 13 to the presser foot lifting component 4, a presser foot lifting seat 133 is connected to the upper end of the presser foot shaft 13.

[0049] As shown in Figure 5, the M-axis drive component includes an M-axis drive motor 21 for driving the M-axis to rotate. The axial direction of the M-axis drive motor is parallel to the axial direction of the M-axis sleeve. A first transmission belt assembly 22 is provided between the motor shaft of the M-axis drive motor and the M-axis sleeve 11. The presser foot sleeve drive component 3 includes a presser foot sleeve drive motor 31 for driving the presser foot sleeve to rotate. The axial direction of the presser foot sleeve drive motor is parallel to the axial direction of the presser foot sleeve. A second transmission belt assembly 32 is provided between the motor shaft of the presser foot sleeve drive motor and the presser foot sleeve 12.

[0050] Both the M-axis drive motor 21 and the presser foot sleeve drive motor 31 are located on the first lateral side of the M-axis assembly, with the M-axis drive motor 21 positioned above the presser foot sleeve drive motor 31, while the first transmission belt assembly 22 is positioned below the second transmission belt assembly 32. The motor shaft of the presser foot sleeve drive motor 31 can be directly connected to the pulley of the second transmission belt assembly, while the motor shaft of the M-axis drive motor 21 can be connected to an extended transmission shaft via a coupling, with the extended transmission shaft connecting to the pulley of the first transmission belt assembly.

[0051] As shown in Figure 6, the second transmission belt assembly 32 includes a second transmission pulley 17 mounted on the presser foot sleeve 12 via a needle roller bearing 124. Additionally, the presser foot shaft 13 has a keyway 132, and the second transmission pulley 17 has a transmission key 171 that mates with the keyway. Therefore, through the engagement of the transmission key 171 and the keyway 132, the second transmission pulley 17 can drive the presser foot shaft 13 to rotate, while the presser foot shaft 13 can move up and down relative to the second transmission pulley 17.

[0052] Because the independent needle bar 14 and the presser foot shaft 13 have a clearance fit, and the clearance is usually large, it is difficult to guarantee the verticality of the needle bar. Therefore, as shown in Figure 7, the M-axis assembly 1 includes an independent needle bar auxiliary shaft 15 arranged parallel to the independent needle bar 14. The independent needle bar 14 is connected to a needle bar guide 134, which has a needle bar guide hole 1341. The needle bar guide hole 1341 is guided and fitted with the independent needle bar auxiliary shaft 15. Thus, the verticality of the independent needle bar's up and down movement is guaranteed by the guidance of the independent needle bar auxiliary shaft. Specifically, the needle bar guide hole 1341 is a U-shaped hole; the needle bar guide 134 is fixed to the independent needle bar 14 by a needle bar clamp 1342. The U-shaped hole is open at one end laterally. First, the needle bar guide hole is fitted with the independent needle bar auxiliary shaft, and then the needle bar guide is fixed to the independent needle bar by the needle bar clamp, so as to facilitate the installation of the needle bar guide. Furthermore, the gap between its longitudinal side walls and the auxiliary shaft of the independent needle bar is small, which is sufficient to ensure that the independent needle bar can move up and down, thereby cooperating with the presser foot shaft to ensure the verticality of the independent needle bar.

[0053] As shown in Figures 8 and 9, in some embodiments, the presser foot lifting component 4 includes a presser foot lifting fork 45 connected to the presser foot shaft 13, a presser foot guide block 44 connected to the presser foot lifting fork 45, and a presser foot driving block 43 that drives the presser foot guide block 44 to rise and fall. The presser foot guide block 44 is provided with a guide hole that is movably nested with the swing rod 54. The swing rod 54 is driven to rise and fall by the swing rod lifting component. In the prior art, a separate sliding rod is usually provided to cooperate with the guide hole. As the functions and components of the ribbon embroidery machine head increase, the setting of the sliding rod affects the arrangement of other components and limits the expansion of the ribbon embroidery machine head's functions. In this embodiment, the setting of the swing rod can expand the functions of the ribbon embroidery machine head. The swing rod is driven to rise and fall by the swing rod lifting component. A sliding sleeve is connected to the bottom of the swing rod, and the sliding sleeve can connect to a tape tensioner or other functional components. In addition, the presser foot lifting component 4 also includes a presser foot lifting motor 41 and a third transmission belt assembly driven by the presser foot lifting motor. The third transmission belt assembly has a third transmission belt 42, which is connected to the presser foot driving block 43. The presser foot guide block 44 is a U-shaped structure with its opening facing horizontally. It has an upper limit part 441 and a lower limit part 442. The presser foot driving block 43 has a driving sleeve 431, which is movably nested on the outside of the swing rod 54 and is located between the upper limit part 441 and the lower limit part 442. A presser foot spring (not shown in the figure) is movably nested on the swing rod 54, with the bottom end of the presser foot spring abutting against the lower limit part and the top end abutting against the bottom surface of the driving sleeve. Therefore, the driving sleeve slides up and down along the swing rod, driving the presser foot guide block to move up and down.

[0054] Furthermore, a linear bearing is provided between the drive sleeve 431 and the rocker arm 54 to achieve relative guidance and linear movement, and to reduce the friction between them. The presser foot lifting fork 45 is connected to the fork groove of the presser foot lifting seat 133, which can drive the presser foot shaft 13 to rise and fall without affecting the rotation of the presser foot shaft.

[0055] As shown in Figure 10, the M-axis assembly 1 further includes a sliding sleeve 16 and a strip tensioner 161 mounted on the sliding sleeve. The strip tensioner 161 has a groove 162, through which the strip is drawn from the strip roll and passes. The M-axis drive structure 2 further includes a groove lifting component 5, which drives the sliding sleeve 16 to slide up and down along the M-axis sleeve 11, and drives the strip tensioner and its groove to rise and fall. When the groove rises, it tightens the strip; when it falls, it relaxes the strip.

[0056] Specifically, the grooved lifting component 5 includes a grooved lifting motor 51 and a fourth transmission belt assembly driven by the grooved lifting mechanism. The fourth transmission belt assembly has a fourth transmission belt 52, which is connected to a grooved drive block 53. The grooved drive block 53 is connected to the upper end of the swing arm. The lower end of the swing arm is connected to a swing arm fork 55, which is connected to the upper fork groove of the sliding sleeve 16.

[0057] The third and fourth transmission belt assemblies have similar structures. Taking the third transmission belt assembly as an example, it includes a driving pulley, a driven pulley, and a transmission belt connecting the driving and driven pulleys. The transmission belt includes a vertical movement path, with pulleys arranged above and below it, thus forming a vertical movement path. A pressure foot drive block and a grooved drive block move along the vertical movement path following the transmission belt. A tensioning pulley is also provided to tension the transmission belt. The structures of the third and fourth transmission belt assemblies described above can be referenced from existing technologies.

[0058] In the above technical solution, the rocker arm can drive the sliding sleeve to slide up and down along the M-axis sleeve and drive the grooved lifting mechanism. At the same time, the rocker arm also serves as the guide shaft for the pressure foot drive block and the pressure foot guide block. The coaxial design can reduce one shaft, that is, eliminate the separately set sliding rod in the prior art, resulting in a more compact structure and lower cost.

[0059] The ribbon embroidery machine head and the flat embroidery machine head work alternately. When the ribbon embroidery machine head is working, its thread take-up lever assembly is needed to take up the thread. At this time, the thread take-up lever assembly is engaged with the thread take-up lever driver. When the flat embroidery machine head is working, the ribbon embroidery machine head is not working. At this time, the thread take-up lever assembly is disengaged from the thread take-up lever driver, and the thread take-up lever assembly needs to be locked. After locking, the thread take-up lever assembly cannot rotate. In the prior art, the thread take-up lever assembly has a locking groove, and a locking member is fixedly installed relative to the locking groove. When the thread take-up lever assembly is not working, the locking member is inserted into the locking groove to lock the thread take-up lever assembly. When the thread take-up lever assembly is working, the locking member disengages from the locking groove, and the thread take-up lever assembly corresponds to the driving part of the thread take-up lever driver, allowing it to rotate to take up the thread. In the prior art, each ribbon embroidery machine head is equipped with a clutch component, using a cylinder as the driving source, to drive the thread take-up lever assembly to move laterally to engage and disengage, that is, to drive the thread take-up lever assembly to switch between working and non-working positions.

[0060] As shown in Figures 11 to 13, in some embodiments, the ribbon embroidery machine is further provided with a ribbon embroidery thread take-up clutch mechanism 8, which drives the thread take-up lever assemblies 81 on at least two ribbon embroidery machine heads to move laterally. Here, "at least two ribbon embroidery machine heads" can refer to all ribbon embroidery machine heads, and the number of them is at least two.

[0061] To avoid increasing the number of components in each ribbon embroidery machine head by installing a separate thread-taking clutch component, this embodiment uses a thread-taking clutch mechanism 8 comprising a clutch drive component, a clutch lever 84, and thread-taking connecting rod components 83 correspondingly disposed on each ribbon embroidery machine head. The clutch drive component drives the clutch lever 84 to move laterally, and the thread-taking connecting rod components 83 are driven by the clutch lever 84, thereby causing the thread-taking rod assemblies 81 on at least two ribbon embroidery machine heads to move laterally.

[0062] In this embodiment, the technical solution adopted for the thread take-up clutch mechanism of the ribbon embroidery machine head is that the thread take-up lever assemblies of at least two ribbon embroidery machine heads share a single drive source. That is, each is driven by a single clutch drive component to move a clutch lever laterally, and the clutch lever drives the thread take-up connecting rod components of at least two ribbon embroidery machine heads. Therefore, it is not necessary to set a drive source on each ribbon embroidery machine head to drive the thread take-up lever assembly laterally. Only the thread take-up connecting rod component needs to be set on the ribbon embroidery machine head to drive the thread take-up lever assembly. This not only reduces the number of parts on the ribbon embroidery machine head corresponding to the ribbon embroidery thread take-up clutch mechanism, but also reduces the number of parts on the entire ribbon embroidery machine corresponding to the ribbon embroidery thread take-up clutch mechanism, thus reducing costs. It also facilitates the synchronous operation of the thread take-up connecting rod components on at least two ribbon embroidery machine heads. In addition, setting a separate drive source for the thread take-up connecting rod component on the ribbon embroidery machine head can reduce the width space occupied, thereby reducing the width of the ribbon embroidery machine head, which is conducive to installing more machine heads on the mounting beam.

[0063] The line-lifting linkage component 83 includes a vertically extending linkage shaft, a first linkage 831 perpendicularly connected to the lower end of the linkage shaft, and a second linkage 832 perpendicularly connected to the upper end of the linkage shaft. The horizontal projections of the first and second linkages form an angle. The first and second linkages 831 and 832 can be fixed to the linkage shaft via a clamping structure. The first linkage 831 can drive the second linkage 832 to rotate synchronously via the linkage shaft. The rotation angle is not large, reciprocating within a small range, sufficient for the line-lifting lever assembly to move laterally within a small range, thus facilitating clutch engagement. The horizontal projection angle between the first and second linkages can be 180 degrees, allowing them to be positioned in a front-to-back direction. Because the line-lifting lever assembly 81 is positioned relatively forward, the clutch lever can be positioned further back, avoiding interference with other components positioned in front and reducing the width space occupied by the line-lifting linkage component.

[0064] Furthermore, a connecting rod bushing 833 is provided outside the connecting rod shaft. The second connecting rod 832 is vertically connected to a pull rod clamp 842, which is connected to the clutch pull rod 84. The machine head housing is provided with a top plate, the second connecting rod 832 is located above the top plate, the first connecting rod 831 is located below the top plate, and the connecting rod bushing 833 can be fixed to the top plate.

[0065] In some embodiments, the clutch drive component includes a clutch linkage 85 and a clutch motor 86. The clutch linkage 85 is connected to a clutch pull rod 84. The clutch motor 86 drives the clutch linkage 85 to swing, and the clutch linkage 85 drives the clutch pull rod 84 to move laterally. The clutch motor can be a servo motor, which can precisely control the swing angle of the clutch linkage.

[0066] In some embodiments, the clutch lever 84 is located above the mounting beam 9 and can connect the thread take-up linkage components 83 on all the ribbon embroidery machine heads mounted on the mounting beam. The clutch motor can be mounted on the mounting beam, located on the first transverse side of all the ribbon embroidery machine heads mounted on the mounting beam, that is, one clutch motor drives the thread take-up linkage components on all the ribbon embroidery machine heads to move through one clutch lever.

[0067] The clutch linkage 85 is connected to a connecting pin 851 at its middle section. The first end of the clutch linkage is connected to the clutch motor, and the second end is connected to the clutch lever. Specifically, the first end of the clutch linkage 85 has a first elongated groove 852. The motor shaft of the clutch motor is connected to a clutch wheel 87. The eccentric portion of the clutch wheel has a first pin 871, which is connected to the first elongated groove 852. The second end of the clutch linkage has a second elongated groove 853. One end of the clutch lever is connected to a second pin 841, which is connected to the second elongated groove 853. Thus, when the clutch motor 86 drives the clutch wheel 87 to rotate, the eccentric setting of the first pin causes a change in the lateral position of the first pin 871 as the clutch wheel rotates. This movement of the first pin 871 along the first elongated groove 852 simultaneously causes the clutch linkage 85 to swing around the connecting pin 851. During the swinging process of the clutch linkage 85, through the cooperation between the second elongated groove 853 and the second pin 841, the second pin 841 can move along the second elongated groove 853 and drive the clutch lever 84 to move laterally.

[0068] In some embodiments, a clutch slide rail component 82 is also provided, which includes a clutch slider 821 and a clutch slide rail. The line-taking lever assembly 81 is connected to the clutch slider 821, the clutch slider 821 is slidably engaged with the clutch slide rail, and the clutch slider 821 is connected to the line-taking connecting rod component 83. Therefore, the clutch slider 821 can only move laterally, thereby driving the line-taking lever assembly 81 to move laterally.

[0069] The clutch slider 821 is provided with an elongated drive groove 8215, and the line-taking connecting rod component 83 is provided with a drive pin 834. The drive pin 834 is perpendicularly connected to the end of the first connecting rod and is connected to the drive groove 8215. Specifically, the clutch slider 821 is provided with an ear plate 8214, which extends outward from the upper end of one side of the U-shaped groove. The drive groove 8215 is provided on the ear plate 8214, extending longitudinally, that is, perpendicular to the lateral sliding direction of the clutch slider 821. Therefore, when the first connecting rod 831 swings, the drive pin 834 can move relative to it within the drive groove 8215, simultaneously driving the clutch slider 821 to slide laterally along the clutch slide rail.

[0070] The thread take-up lever assembly 81 is rotatably mounted on the thread take-up shaft 822. The clutch slider 821 is provided with a clutch guide hole 8212. The clutch guide hole 8212 is slidably engaged with the thread take-up shaft 822. Therefore, the thread take-up shaft also functions as a clutch slide rail and does not affect the rotation of the thread take-up lever assembly.

[0071] Furthermore, the rear of the clutch slider is provided with a U-shaped groove 8211, and the connection part between the take-up lever assembly 81 and the take-up shaft is located in the U-shaped groove. The front of the clutch slider is provided with a clutch guide groove 8213, and the clutch slide rail includes a clutch guide rod 823, with the clutch guide groove 8213 cooperating with the clutch guide rod 823. The clutch guide rod cooperates with the take-up shaft to guide the clutch slider to slide laterally, and at the same time, after the clutch slider slides into place, it does not affect the rotation of the take-up lever assembly 81 around the take-up shaft.

[0072] It is understood that this embodiment describes part of the structure of the ribbon embroidery machine, and other structures can be referred to the prior art.

[0073] The above description is merely a specific embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. Those skilled in the art should understand that the utility model includes, but is not limited to, the content described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of the utility model will be included within the scope of the claims.

Claims

1. A presser foot drive device for a ribbon embroidery machine head, characterized in that, The device includes a presser foot sleeve and a presser foot shaft movably nested within the presser foot sleeve, a presser foot sleeve drive component for driving the presser foot sleeve to rotate, and a presser foot lifting component for driving the presser foot shaft to rise and fall. The presser foot sleeve rotates while simultaneously driving the presser foot shaft to rotate. The presser foot lifting component includes a presser foot lifting fork connected to the presser foot shaft, a presser foot guide block connected to the presser foot lifting fork, and a presser foot drive block for driving the presser foot guide block to rise and fall. The presser foot guide block has a guide hole, which is movably nested outside the swing arm. The swing arm is driven to rise and fall by the swing arm lifting component. A sliding sleeve is connected to the bottom of the swing arm. The presser foot sleeve is nested inside the M-shaft sleeve, and the sliding sleeve is slidably nested outside the M-shaft sleeve.

2. The pressure foot drive device for a ribbon embroidery machine head according to claim 1, characterized in that, The presser foot lifting component includes a presser foot lifting motor and a third transmission belt assembly driven by the presser foot lifting motor. The third transmission belt assembly is provided with a third transmission belt, which is connected to the presser foot drive block.

3. The pressure foot drive device for a ribbon embroidery machine head according to claim 2, characterized in that, The presser foot guide block has an upper limit part and a lower limit part, and the presser foot drive block has a drive sleeve. The drive sleeve is movably nested on the outside of the swing rod and is located between the upper limit part and the lower limit part. A presser foot spring is movably nested on the swing rod, and the bottom end of the presser foot spring abuts against the lower limit part and the top end abuts against the bottom surface of the drive sleeve.

4. The presser foot drive device for a ribbon embroidery machine head according to claim 3, characterized in that, A linear bearing is provided between the drive sleeve and the rocker arm.

5. The pressure foot drive device for a ribbon embroidery machine head according to claim 1, characterized in that, The presser foot sleeve driving component includes a presser foot sleeve driving motor for driving the presser foot sleeve to rotate. The axial direction of the presser foot sleeve driving motor is parallel to the axial direction of the presser foot sleeve. A second transmission belt assembly is provided between the motor shaft of the presser foot sleeve driving motor and the presser foot sleeve.

6. The pressure foot drive device for a ribbon embroidery machine head according to claim 5, characterized in that, The second drive belt assembly includes a second pulley mounted on the pressure foot sleeve via a needle roller bearing.

7. The pressure foot drive device for a ribbon embroidery machine head according to claim 6, characterized in that, The presser foot shaft is provided with a keyway, and the second pulley is provided with a transmission key that mates with the keyway.

8. The pressure foot drive device for a ribbon embroidery machine head according to claim 6, characterized in that, The lower part of the second pulley is provided with a bearing mounting hole, the upper end of which is matched with the upper end of the pressure foot sleeve; and / or, the outer circle of the upper end of the pressure foot sleeve is provided with a positioning step that matches the positioning of the needle roller bearing.

9. The presser foot drive device for a ribbon embroidery machine head according to claim 1, characterized in that, The swing arm lifting component includes a swing arm lifting motor and a fourth transmission belt assembly driven by the swing arm lifting motor. The fourth transmission belt assembly is provided with a fourth transmission belt, and the fourth transmission belt is connected to a swing arm lifting block. The swing arm lifting block drives the swing arm to lift and lower.

10. A ribbon embroidery machine, comprising a ribbon embroidery machine head, characterized in that, The embroidery head is equipped with a presser foot drive device as described in any one of claims 1 to 9.

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