A band mouth swing lever assembly capable of avoiding the band mouth from hooking the band and a disc band embroidery machine

Abstract

The application discloses a band mouth swing lever assembly capable of avoiding hooking of a band and a disc band embroidery machine. The band mouth swing lever assembly comprises a band mouth assembly mounting support, a band mouth up-down slider sliding along the band mouth assembly mounting support, and a band mouth swing lever hinged to the band mouth up-down slider. A swing lever driving part is arranged between the band mouth swing lever and the band mouth assembly mounting support. The band mouth swing lever assembly is further provided with a clutch part. The band mouth up-down slider has a first stroke, a second stroke and a third stroke in sequence. When the band mouth up-down slider is in the first stroke, the clutch part locks the band mouth swing lever. When the band mouth up-down slider is in the second stroke, the clutch part unlocks the band mouth swing lever. When the band mouth up-down slider is in the third stroke, the swing lever driving part drives the band mouth swing lever to swing. The band mouth swing lever cannot swing in the first stroke. When the band mouth is in the third stroke, the band mouth has been lifted to a height at a proper distance from the cloth. At this time, the swing lever driving part drives the band mouth swing lever to swing, and the band mouth cannot hook the band in the swinging process.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of embroidery equipment, and particularly relates to a disc tape embroidery machine. BACKGROUND

[0002] Disc tape embroidery is a combination of rope embroidery and tape embroidery, and the independent disc tape embroidery device is provided with an independent disc tape embroidery head, and disc tape embroidery function components are arranged on the disc tape embroidery head.

[0003] A disc tape embroidery device is disclosed in Chinese patent application for invention with application publication number CN113957630 A, which comprises a machine shell, a needle bar, a presser foot, a presser foot driving mechanism, a spout frame, and a rope embroidery driving mechanism. The needle bar vertically penetrates the machine shell, the needle bar is externally sleeved with a presser foot sleeve, the presser foot sleeve is externally sleeved with a fixing sleeve, the fixing sleeve is fixed on the machine shell, and the fixing sleeve is externally sleeved with a shaft sleeve. The presser foot sleeve is connected with the presser foot at the tail end. The presser foot driving mechanism comprises a presser foot lifting motor arranged outside the machine shell and a presser foot driving assembly arranged inside the machine shell. The rope embroidery driving mechanism comprises a rope embroidery driving motor arranged inside the machine shell and a rope embroidery driving assembly arranged inside the machine shell. The driving shaft of the rope embroidery driving assembly vertically penetrates the machine shell and is used to drive the spout frame arranged outside the shaft sleeve to swing. The presser foot sliding block of the presser foot driving assembly moves up and down along the driving shaft of the rope embroidery driving assembly, thereby driving the presser foot sleeve to lift.

[0004] The tape nozzle presser foot swing rod assembly and the rope nozzle presser foot swing rod assembly in the prior art are similar in structure, but unlike the rope, the tape embroidery has a certain height on the cloth. If the tape nozzle swings at a height close to the cloth, it is easy to hook the tape during the swinging process. SUMMARY

[0005] In view of the deficiencies in the prior art, the technical problem to be solved by the present application is to provide a tape nozzle swing rod assembly and a disc tape embroidery machine to avoid the tape nozzle from hooking the tape during the swinging process.

[0006] To solve the above technical problems, the present application adopts the following technical solutions:

[0007] Firstly, a tape nozzle swing rod assembly is provided, which comprises a tape nozzle assembly mounting bracket, a tape nozzle up-down sliding block sliding up and down along the tape nozzle assembly mounting bracket, and a tape nozzle swing rod hinged to the tape nozzle up-down sliding block. A swing rod driving component is arranged between the tape nozzle swing rod and the tape nozzle assembly mounting bracket. The tape nozzle swing rod assembly is further provided with a clutch component. The tape nozzle up-down sliding block has a first stroke, a second stroke, and a third stroke which are sequentially raised. When the tape nozzle up-down sliding block is in the first stroke, the clutch component locks the tape nozzle swing rod. When the tape nozzle up-down sliding block is in the second stroke, the clutch component unlocks the tape nozzle swing rod. When the tape nozzle up-down sliding block is in the third stroke, the tape nozzle up-down sliding block slides up and down, and at the same time, the tape nozzle swing rod is driven to swing by the swing rod driving component.

[0008] Preferably, the clutching component comprises a clutching slider following the up-and-down sliding of the mouthpiece up-and-down slider in the first stroke, the clutching slider is provided with a locking groove, and the mouthpiece swing lever is provided with a locking part matched with the locking groove.

[0009] Preferably, the clutching component further comprises a clutching top block provided on the mouthpiece assembly mounting support, used for limiting the upward movement of the clutching slider when the mouthpiece up-and-down slider is in the second stroke, so that the locking part moves upward and is disengaged from the locking groove.

[0010] Preferably, a clutching spring is arranged between the mouthpiece up-and-down slider and the clutching slider, the mouthpiece up-and-down slider is provided with a lower positioning part, the clutching slider is provided with an upper positioning part, the lower end of the clutching spring is connected with the lower positioning part, and the upper end of the clutching spring is connected with the upper positioning part, when the mouthpiece up-and-down slider is in the second stroke, the mouthpiece up-and-down slider moves upward and compresses the clutching spring.

[0011] Preferably, an up-and-down guide rail is arranged between the mouthpiece up-and-down slider and the clutching slider.

[0012] Preferably, the mouthpiece swing lever is connected with a swing lever driving shaft, the swing lever driving shaft is rotationally connected with the mouthpiece up-and-down slider, the swing lever driving part comprises a second gear provided on the swing lever driving shaft and a second rack provided on the mouthpiece assembly mounting support, and the second gear and the second rack are engaged when the mouthpiece up-and-down slider is in the third stroke.

[0013] Preferably, the mouthpiece swing lever assembly is further provided with a mouthpiece overturning guide plate and a mouthpiece overturning guide bearing, the mouthpiece overturning guide bearing is connected with the mouthpiece swing lever, and the mouthpiece overturning guide plate is provided with a mouthpiece overturning guide groove matched with the mouthpiece overturning guide bearing.

[0014] Preferably, the mouthpiece up-and-down slider is connected with a second pin shaft, the second pin shaft is connected with a second transmission ball, and the second transmission ball is connected with the presser swing lever up-and-down driving assembly.

[0015] Preferably, the presser swing lever up-and-down driving assembly is provided with a transmission groove connected with the second transmission ball.

[0016] The application also provides a disc tape embroidery machine, which is provided with the above-mentioned mouthpiece swing lever assembly.

[0017] The technical scheme adopted by the application has the following beneficial effects:

[0018] The up-and-down slider of the belt mouth has a first stroke, a second stroke and a third stroke which are sequentially raised, and the clutching component realizes self-locking and unlocking of the belt mouth swing lever during the lifting of the belt mouth swing lever following the up-and-down slider of the belt mouth, the first stroke is set to make the belt mouth swing lever rise to a suitable height before swinging, and the belt mouth swing lever cannot swing during the process, so that the clutching component needs to lock it, the second stroke is set to realize unlocking of the belt mouth swing lever, so that in the third stroke, the belt mouth has been raised to a height with a suitable distance from the cloth, at which time the swing lever driving component drives the belt mouth swing lever to swing, and the belt mouth will not hook the belt during the swinging process.

[0019] In addition, since the clutching component realizes self-locking and unlocking of the belt mouth swing lever during the up-and-down movement of the belt mouth swing lever, it is unnecessary for human intervention, and the self-locking and unlocking are convenient.

[0020] These features and advantages of the present application will be described in detail in the following specific embodiments, drawings.

DRAWINGS

[0021] The application will be further described below in combination with the drawings:

[0022] Figure 1 is an assembly structure diagram of the M-axis assembly;

[0023] Figure 2 is an exploded structure diagram of the M-axis assembly;

[0024] Figure 3 is a structure diagram of the belt mouth presser swing lever assembly in state one;

[0025] Figure 4 is a structure diagram of the belt mouth presser swing lever assembly in state two;

[0026] Figure 5 is a structure diagram of the belt mouth presser swing lever assembly in state three;

[0027] Figure 6 is an exploded structure diagram of the belt mouth presser swing lever assembly;

[0028] Figure 7 is an exploded structure diagram of the rope mouth swing lever assembly Figure 1 ;

[0029] Figure 8 is an exploded structure diagram of the rope mouth swing lever assembly Figure 2 ;

[0030] Figure 9 is an assembly structure diagram of the multi-color disc belt embroidery device;

[0031] Reference numerals: M-axis assembly 1, turntable 100, M-axis 11, shaft sleeve 111, presser foot mounting seat 112, M-axis secondary pulley 113, needle bar presser foot assembly 12, embroidery needle 121, needle bar 122, tape presser foot 123, presser foot driving block 124, presser foot swing rod color changing ring 13, color changing ring groove 131, interruption notch 1311, axial guide groove 132, presser foot swing rod upper and lower driving assembly 14, presser foot swing rod upper and lower Driving member 141, transmission groove 1411, sliding ring 142, annular groove 1421, clamping transmission member 143, arc-shaped plug-in portion 1431, presser foot swing rod transmission shaft 144, presser foot swing rod assembly with nozzle 2, nozzle assembly mounting bracket 21, guide rail bottom plate 211, upper and lower guide rails with nozzle 212, upper limit plate 213, guide rail slider 214, upper and lower sliders with nozzle 22, second pin 221, second transmission ball 2 22, side plate 223, nozzle swing rod 23, nozzle swing rod A231, clasping block 2311, nozzle swing rod B232, embroidery presser foot 233, nozzle turning guide bearing 234, swing rod drive shaft 24, second gear 241, rack fixing block 25, second rack 251, clutch top block 26, nozzle turning guide plate 27, nozzle turning guide groove 271, clutch slider 28, lock groove 281, upper and lower guide grooves 282 , rope mouth presser foot swing rod assembly 3, rope mouth assembly mounting bracket 31, linear slide rail 311, linear slider 312, rope mouth swing rod 32, rope mouth swing rod A321, rope mouth swing rod B322, rope mouth 323, linear sliding component 33, first rack 331, swing component 34, first gear 341, clamp sleeve 342, eccentric pin 35, linear transmission block 36, first pin shaft 361, first transmission ball 362. [Specific implementation method]

[0032] The following is an explanation and description of the technical solutions of the embodiments of the present invention in conjunction with the drawings of the embodiments of the present invention. However, the following embodiments are only preferred embodiments of the present invention and are not exhaustive. Based on the embodiments in the implementation manner, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.

[0033] Those skilled in the art will appreciate that, unless there is any conflict, the features in the following embodiments and implementations may be combined with each other.

[0034] The terms used in this disclosure are for the purpose of describing specific embodiments only and are not intended to limit the disclosure. For example, terms such as "upper," "lower," "front," and "rear" that indicate orientation or positional relationships are based solely on the orientation or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the disclosure. They do not indicate or imply that the device or component referred to must have a specific orientation or be constructed or operated in a specific orientation. Therefore, they should not be construed as limiting the disclosure.

[0035] In the present application, unless specifically defined and limited otherwise, the terms "mounting", "connecting", "fixing" and the like should be interpreted broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or can be connected internally between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0036] In the present application, unless specifically defined and limited otherwise, "on" or "under" of a first feature to a second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, "on", "above" and "over" of the first feature to the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher in horizontal height than the second feature. "Under", "below" and "under" of the first feature to the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the first feature is lower in horizontal height than the second feature.

[0037] In addition, the terms "first", "second" and the like are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features.

[0038] Embodiment one

[0039] The disc tape embroidery machine is provided with a multi-color disc tape embroidery head. Referring to Figures 1 to 9 The multi-color disc tape embroidery device in the present embodiment is provided with an M-axis assembly 1 and at least two presser bar linkage assemblies. The M-axis assembly 1 includes an M-axis 11 and a needle bar presser assembly 12 passing through the M-axis 11. The M-axis 11 is also called a multi-function axis and is of a hollow structure, so that the needle bar presser assembly 12 can pass through the M-axis 11 in the axial direction. The needle bar presser assembly 12 includes a needle bar 122 and a disc tape presser 123 movably sleeved on the needle bar 122. The lower end of the needle bar is connected with an embroidery needle 121, and the upper end of the needle bar 122 is connected with a needle bar driving mechanism. The needle bar driving mechanism drives the needle bar to move up and down. The disc tape presser 123 is connected with a presser driving shaft, and the presser driving shaft is provided with a presser driving block 124. The presser driving block 124 is connected with a presser driving mechanism, which drives the disc tape presser to move up and down. The structures of the needle bar driving mechanism and the presser driving mechanism can refer to the prior art.

[0040] As Figure 1 And Figure 2As shown, the M shaft 11 includes a shaft sleeve 111 and a presser foot mounting seat 112 connected with the shaft sleeve 111, an M shaft secondary pulley 113, and an M shaft driving motor provided on the multi-color disc and belt embroidery machine head. The M shaft driving motor drives an M shaft transmission pulley, and a transmission belt is provided between the M shaft transmission pulley and the M shaft secondary pulley, so as to drive the M shaft to rotate.

[0041] In addition, the M shaft assembly 1 is provided with a color changing mechanism, which includes at least two presser foot swing lever assemblies installed in the circumferential direction on the presser foot mounting seat 112, i.e., at least a first presser foot swing lever assembly and a second presser foot swing lever assembly are provided. The presser foot swing lever assembly is provided with a swing lever driving part and a presser foot swing lever, and the swing lever driving part drives the presser foot swing lever to swing. The presser foot mounting seat 112 is connected with a rotating disc 100, and the rotating disc 100 is axially provided with at least two thread storage mechanisms corresponding to the at least two presser foot swing lever assemblies. Each thread storage mechanism can place a rope or a belt of different colors.

[0042] In the embodiment, the axial projection of the presser foot mounting seat is a square structure, and the presser foot swing lever assembly is installed on at least two edges of the square structure, and generally, the presser foot swing lever assembly is installed on four edges, so that four-color disc and belt embroidery can be realized. Of course, the presser foot mounting seat can also be triangular or other shapes.

[0043] The color changing mechanism further includes a presser foot swing lever up-down driving assembly 14 and a presser foot swing lever color changing ring 13 movably connected with the M shaft. The presser foot swing lever color changing ring 13 is located above the presser foot mounting seat 112 and movably sleeved on the shaft sleeve 111. The presser foot swing lever color changing ring 13 is provided with a color changing secondary pulley, and a color changing driving motor is provided on the multi-color disc and belt embroidery machine head. The color changing driving motor drives a color changing transmission pulley, and a color changing transmission belt is provided between the color changing transmission pulley and the color changing secondary pulley, so as to drive the presser foot swing lever color changing ring 13 to rotate for color changing.

[0044] The color changing process of the color changing mechanism is that the presser foot swing lever up-down driving assembly 14 is separated from the swing lever driving part of one of the presser foot swing lever assemblies, and then combined with the swing lever driving part of another presser foot swing lever assembly. Specifically, the presser foot swing lever color changing ring 13 is provided with a color changing ring groove 131 in the circumferential direction, and the color changing ring groove 131 is provided with an upper and lower through interrupting gap 1311. The presser foot swing lever color changing ring 13 is provided with an axially extending axial guide groove 132 corresponding to the position of the interrupting gap. The presser foot swing lever up-down driving assembly 14 includes a presser foot swing lever up-down driving member 141, which moves up and down along the axial guide groove 132 and passes through the interrupting gap during up and down movement. The presser foot swing lever up-down driving member 141 is provided with a transmission groove 1411 corresponding to the interrupting gap 1311. The transmission groove 1411 and the cross-sectional shape of the color changing ring groove 131 correspond to each other and are both U-shaped structures. The swing lever driving part cooperates with the transmission groove 1411, and the presser foot swing lever up-down driving member 141 drives the swing lever driving part to move up and down when the presser foot swing lever up-down driving member 141 moves up and down, so as to drive the presser foot swing lever assembly to swing.

[0045] The presser bar swing rod up-and-down driving member 141 rotates synchronously with the presser bar swing rod color changing ring 13, and corresponds to the position of the first presser bar swing rod assembly before color changing and to the position of the second presser bar swing rod assembly after color changing. Therefore, after the presser bar swing rod color changing ring rotates by a set angle, the presser bar swing rod up-and-down driving member 141 corresponds to the position of the presser bar swing rod assembly after color changing, so that the presser bar swing rod up-and-down driving member 141 can drive the second presser bar swing rod assembly.

[0046] When the transmission groove is located in the interruption gap, the color changing ring groove forms a closed loop structure, the swing rod driving part of the first presser bar swing rod assembly is located in the transmission groove, and the swing rod driving part of the second presser bar swing rod assembly is located in the reversing ring groove. When the presser bar swing rod color changing ring rotates for color changing, because the presser bar swing rod assembly is fixed relative to the presser bar swing rod color changing ring, the swing rod driving part of the first presser bar swing rod assembly is separated from the transmission groove, and the swing rod driving part of the second presser bar swing rod assembly is connected to the transmission groove after color changing. Before and after color changing, the transmission groove 1411 is always connected to one of the swing rod driving parts, so that the transmission groove 1411 can drive one of the swing rod driving parts before and after color changing.

[0047] Specifically, the presser bar swing rod up-and-down driving assembly 14 further comprises a sliding ring 142 slidingly sleeved on the presser bar swing rod color changing ring, a presser bar swing rod transmission shaft 144, and a clamping transmission member 143. The presser bar swing rod up-and-down driving member 141 is connected to the sliding ring 142, and the sliding ring 142 drives the presser bar swing rod up-and-down driving member 141 to move up and down. The sliding ring 142 is provided with an annular clamping groove 1421, the clamping transmission member 143 is provided with an arc-shaped insertion part 1431, and the arc-shaped insertion part 1431 is clamped in the annular clamping groove 1421. The lower end of the presser bar swing rod transmission shaft 144 is connected to the clamping transmission member 143, and the upper end is connected to a linear driver. In this way, the linear driver serves as a driving source, and the presser bar swing rod transmission shaft 144, the clamping transmission member 143, the sliding ring 142, and the presser bar swing rod up-and-down driving member 141 are sequentially linked.

[0048] As can be seen from the above description, at least two presser bar swing rod assemblies are installed along the circumference of the presser bar mounting seat. For example, Figure 9As shown, in the embodiment, the first presser bar swing rod assembly is a rope nozzle presser bar swing rod assembly 3, and the second presser bar swing rod assembly is a belt nozzle presser bar swing rod assembly 2. The rope nozzle presser bar swing rod assembly 3 and the belt nozzle presser bar swing rod assembly 2 are distributed at an interval of 180 degrees along the circumference of the presser bar mounting seat 112. In the prior art, the belt nozzle swing rod assembly and the rope nozzle presser bar swing rod assembly have similar structures, wherein the belt nozzle swing rod assembly includes a belt nozzle swing rod provided with a belt nozzle and a belt nozzle up-down slider for driving the belt nozzle swing rod to swing, and the belt nozzle up-down slider is detachably connected with the presser bar up-down driving member. The rope nozzle swing rod assembly includes a rope nozzle swing rod provided with a rope nozzle, a straight-line sliding component for driving the rope nozzle swing rod to swing, and the straight-line sliding component is detachably connected with the presser bar up-down driving member, and the belt nozzle up-down slider and the straight-line sliding component can slide up and down when connected with the presser bar up-down driving member. When the presser bar swing rod color changing ring changes color, it rotates and drives the presser bar up-down driving member to rotate synchronously, so that the first presser bar swing rod assembly is separated from the presser bar up-down driving member, and the second presser bar swing rod assembly is connected with the presser bar up-down driving member. In this way, through color changing, disc belt embroidery and disc belt embroidery can be performed separately, and while realizing multi-color disc belt embroidery, the quality of the embroidery can also be guaranteed.

[0049] The structure of the rope nozzle presser bar swing rod assembly in the prior art can refer to the prior application, i.e., the Chinese invention patent with the authorization announcement number CN212294009U. The swing driving assembly includes a driving motor and a transmission mechanism connected with the output shaft of the driving motor. The disc belt is driven to move up and down linearly reciprocatingly through the transmission mechanism, and the disc belt swing link is reciprocatingly swung by the disc belt winding fork sleeve. The disc belt winding fork sleeve is connected with a disc belt winding fork sleeve connecting block, the disc belt winding fork sleeve connecting block is provided with a U-shaped groove, the disc belt swing link is rotatably connected with a disc belt swing link ball, the disc belt swing link ball cooperates with the U-shaped groove, and the disc belt swing link ball can slide in the U-shaped groove to swing the disc belt swing link under the driving of the disc belt winding fork sleeve connecting block. However, the gap between the disc belt swing link ball and the U-shaped groove is large, which cannot guarantee the uniform speed of the disc belt swing link, and affects the improvement of the disc belt embroidery quality.

[0050] In view of the above problems existing in the prior art, the specific structure of the rope nozzle presser bar swing rod assembly in the embodiment is as follows. Figure 7 and Figure 8As shown, the rope head pressing foot swing rod assembly 3 comprises a rope head assembly mounting support 31, a rope head swing rod 32 hinged to the rope head assembly mounting support, a linear sliding component 33 capable of linearly sliding up and down on the rope head assembly mounting support, a swing component 34 for driving the rope head swing rod 32 to swing, and a transmission conversion component provided between the linear sliding component 33 and the swing component 34, which is used for converting the linear sliding of the linear sliding component into the swing of the swing component. Unlike the prior art, the transmission conversion component comprises a first rack 331 provided on the linear sliding component 33 and a first gear 341 provided on the swing component 34, and the first gear 341 is engaged with the first rack 331. The linear sliding of the linear sliding component is converted into the swing of the swing component in the form of rack and gear engagement, thereby driving the rope head swing rod to swing. Since the machining precision and engagement precision of the rack and gear can be designed to be relatively high, the uniform speed of the swing of the swing component can be ensured, and the disc belt embroidery quality is improved.

[0051] Specifically, the rope head swing rod 32 comprises a rope head swing rod A 321, a rope head swing rod B 322, and a rope head 323. The rope head swing rod A 321 and the rope head swing rod B 322 can be integrated or separately arranged. When they are separately arranged, the rope head swing rod A 321 and the rope head swing rod B 322 are positioned by means of the cooperation of positioning grooves and positioning protrusions, and then fixed by bolts. The rope head swing rod A 321 is connected with the swing component, and the rope head 323 is mounted on the rope head swing rod B 322. The rope head is used for the rope to pass through, so that the rope head swing rod drives the rope to swing.

[0052] In this embodiment, the swing component 34 is a sector, and the center of the sector is hinged to the rope head assembly mounting support through an eccentric pin. Correspondingly, the first gear 341 is a sector gear, and the number of teeth of the sector gear is designed to meet the swing angle requirement of the rope head swing rod.

[0053] Specifically, one end of the rope head swing rod 32 is provided with a fixing sleeve connected with the eccentric pin 35, and the center of the sector is provided with a hoop sleeve 342 tightly fixed with the eccentric pin 35. The eccentric pin is connected with the rope head assembly mounting support, so that the rope head swing rod can swing together with the swing component. The linear sliding component 33 is a rack slider integrally arranged with the first rack, and a linear sliding rail mechanism is provided between the rack slider and the rope head assembly mounting support. The linear sliding rail mechanism comprises a linear sliding rail 311 and a linear sliding block 312. The linear sliding block is in sliding cooperation with the linear sliding rail, and the rack slider is connected with or integrally arranged with the linear sliding block 312, so that the rack slider can slide along the linear sliding rail.

[0054] Further, the straight sliding component 33 is connected with a straight transmission block 36, and the straight transmission block 36 is connected with a presser foot swing lever up-down driving assembly. Specifically, the straight transmission block 36 is connected with a first pin shaft 361, the first pin shaft is connected with a first transmission ball 362, and the first transmission ball 362 is connected with the presser foot swing lever up-down driving assembly, that is, the first transmission ball 362 is connected with the transmission groove as a swing lever driving part.

[0055] The existing art presser foot swing lever assembly with a belt is similar to the rope presser foot swing lever assembly in structure, but different from the rope, the belt has a certain height on the fabric after being embroidered on the fabric, and if the belt is swung at a height close to the fabric, the belt is easily hooked in the swinging process.

[0056] The structure of the presser foot swing lever assembly with a belt in the embodiment is shown in Figures 3 to 6 The presser foot swing lever assembly with a belt 2 includes a belt assembly mounting bracket 21, a belt up-down guide rail 212 arranged on the belt assembly mounting bracket, a belt up-down sliding block 22 sliding along the belt up-down guide rail 212, and a belt swing lever 23 hinged to the belt up-down sliding block. The belt swing lever 23 includes a belt swing lever A 231, a belt swing lever B 232, a belt embroidery presser foot mounting plate arranged on the belt swing lever, and a belt embroidery presser foot 233 arranged on the belt embroidery presser foot mounting plate. A swing lever driving part is arranged between the belt swing lever 23 and the belt assembly mounting bracket.

[0057] The belt up-down guide rail 212 is slidingly connected with a guide rail sliding block 214, and the belt up-down sliding block 22 is fixedly connected with the guide rail sliding block 214. The belt up-down guide rail 212 is arranged on a guide rail bottom plate 211, and an upper limit plate 213 is arranged on the upper side of the belt up-down guide rail 212.

[0058] In order to avoid the belt being hooked in the swinging process, the belt up-down sliding block 22 has a first stroke, a second stroke, and a third stroke, and the first stroke, the second stroke, and the third stroke are sequentially raised. The belt swing lever assembly 3 is further provided with a clutch part, which locks the belt swing lever when the belt up-down sliding block is in the first stroke, unlocks the belt swing lever when the belt up-down sliding block is in the second stroke, and drives the belt swing lever to swing by the swing lever driving part while the belt up-down sliding block slides up and down when the belt up-down sliding block is in the third stroke.

[0059] The first stroke is set to make the belt nozzle swing rod swing first to a suitable height, and the belt nozzle swing rod cannot swing in this process, so the clutch component needs to lock it. The second stroke is set to unlock the belt nozzle swing rod. In the third stroke, the belt nozzle has been raised to a suitable height from the cloth, and the swing rod driving component drives the belt nozzle swing rod to swing. The belt nozzle will not hook the belt during the swinging process. It can be understood that the setting of the first stroke and the second stroke is sufficient to ensure that the belt nozzle will not hook the belt in the third stroke. In addition, the clutch component automatically locks and unlocks the belt nozzle swing rod during its upward and downward movement, without the need for human intervention, which is convenient for automatic locking and unlocking.

[0060] As an embodiment, the clutch component includes a clutch slider 28 that slides up and down with the belt nozzle up-down slider 22 in the first stroke. The clutch slider 28 is provided with a locking groove 281, which can be opened upward, and a limiting wall in the front-rear direction. The belt nozzle swing rod 23 is provided with a locking part that cooperates with the locking groove. That is, in the first stroke, the locking part on the belt nozzle swing rod is located in the locking groove, and the belt nozzle swing rod cannot swing due to the limiting of the limiting wall on the locking part. In addition, the clutch component also includes a clutch top block 26 provided on the belt nozzle assembly mounting bracket, which is used to limit the upward movement of the clutch slider when the belt nozzle up-down slider is in the second stroke. In this way, the clutch slider is fixed, but the belt nozzle up-down slider continues to move upward, so that the locking part moves upward and is separated from the locking groove.

[0061] Further, a clutch spring is provided between the belt nozzle up-down slider 22 and the clutch slider 28. The belt nozzle up-down slider is provided with a lower limiting part, and the clutch slider is provided with an upper limiting part. The lower end of the clutch spring is connected to the lower limiting part, and the upper end is connected to the upper limiting part. When the belt nozzle up-down slider is in the second stroke, the belt nozzle up-down slider moves upward and compresses the clutch spring. When the belt nozzle up-down slider moves downward, the clutch slider can be reset downward through the clutch spring. In addition, an up-down guide rail is provided between the belt nozzle up-down slider and the clutch slider to guide the clutch slider to move only linearly upward and downward relative to the belt nozzle up-down slider. The up-down guide rail includes an up-down guide groove 282 provided on the clutch slider.

[0062] The nozzle swing lever 23 is connected with a swing lever driving shaft 24, the swing lever driving shaft 24 is rotationally connected with the nozzle up-down slider 22, the left and right sides of the lower part of the nozzle up-down slider 22 are provided with two protruding side plates 223 in parallel, the two ends of the swing lever driving shaft 24 are rotationally supported on the two side plates, the nozzle swing lever A231 is provided with an n-shaped embracing block 2311 which is embraced on the swing lever driving shaft 24 and is fixed by screw locking. The swing lever driving part includes a second gear 241 provided on the swing lever driving shaft and a second rack 251 provided on the nozzle assembly mounting bracket, the second rack is provided on the rack fixing block 25. When the nozzle up-down slider is in the first stroke, the second gear 241 and the second rack 251 have not been engaged. When the nozzle up-down slider is in the third stroke, the second gear and the second rack are engaged in transmission.

[0063] In addition, a nozzle overturning guide plate 27 and a nozzle overturning guide bearing 234 are further provided, the nozzle overturning guide bearing 234 is connected with the nozzle swing lever A231, the nozzle overturning guide plate 24 is provided with a nozzle overturning guide slot 271 matched with the nozzle overturning guide bearing. The nozzle overturning guide plate 27 is arranged to guide the nozzle swing lever to rotate downward and reset. Because the second gear is disengaged from the second rack, it cannot be ensured that the nozzle swing lever rotates downward and resets completely. By providing an external force for the nozzle swing lever to rotate downward and reset through the nozzle overturning guide plate 27, it can be ensured that the nozzle swing lever rotates downward and resets completely. In addition, the nozzle assembly mounting bracket 21 is provided with a lower limit block corresponding to the lower limit position of the nozzle up-down slider.

[0064] The connection structure of the nozzle up-down slider 22 and the presser swing lever up-down driving assembly is similar to the connection structure between the nozzle presser swing lever assembly and the presser swing lever up-down driving assembly, the nozzle up-down slider 22 is connected with a second pin shaft 221, the second pin shaft is connected with a second transmission ball 222, and the second transmission ball is connected with a transmission groove.

[0065] The above is only a specific embodiment of the application, but the protection scope of the application is not limited thereto. Those skilled in the art should understand that the application includes but is not limited to the contents described in the drawings and the above specific embodiment. Any modification which does not deviate from the functional and structural principles of the application shall be included in the scope of the claims.

Claims

1. A nozzle swing arm assembly, comprising a nozzle assembly mounting bracket, upper and lower nozzle sliders that slide up and down along the nozzle assembly mounting bracket, and a nozzle swing arm hinged to the upper and lower nozzle sliders, wherein a swing arm driving unit is provided between the nozzle swing arm and the nozzle assembly mounting bracket; characterized in that: The nozzle swing arm assembly is also provided with a clutch component, and the upper and lower sliders of the nozzle have a first stroke, a second stroke, and a third stroke that rises in sequence; the clutch component locks the nozzle swing arm when the upper and lower sliders of the nozzle are in the first stroke, and unlocks the nozzle swing arm when the upper and lower sliders of the nozzle are in the second stroke; when the upper and lower sliders of the nozzle are in the third stroke, the nozzle swing arm is driven by the swing arm driving unit to swing, and the clutch component includes a clutch slider that follows the upper and lower sliders of the nozzle to slide up and down in the first stroke, and the clutch slider is provided with a locking groove, and the nozzle swing arm is provided with a locking part that cooperates with the locking groove, and the clutch component also includes a clutch top block provided on the nozzle assembly mounting bracket, which is used to lock the nozzle when the upper and lower sliders of the nozzle are in the second stroke. When the clutch slider is restricted to continue moving upward, the locking part moves upward and disengages from the lock slot, and a clutch spring is provided between the upper and lower sliders of the belt nozzle and the clutch slider, and the upper and lower sliders of the belt nozzle are provided with a lower positioning part, and the clutch slider is provided with an upper positioning part, and the lower end of the clutch spring is connected with the lower positioning part, and the upper end is connected with the upper positioning part. When the upper and lower sliders of the belt nozzle are in the second stroke, the upper and lower sliders of the belt nozzle move upward and compress the clutch spring, and the belt nozzle rocker is connected to a rocker drive shaft, and the rocker drive shaft is rotatably connected to the upper and lower sliders of the belt nozzle, and the rocker drive part includes a second gear provided on the rocker drive shaft and a second rack provided on the belt nozzle assembly mounting bracket. When the upper and lower sliders of the belt nozzle are in the third stroke, the second gear and the second rack are meshed.

2. The nozzle rocker assembly according to claim 1, characterized in that: Upper and lower guide rails are provided between the upper and lower sliding blocks with a nozzle and the clutch sliding block.

3. The nozzle rocker assembly according to claim 1, characterized in that: The nozzle swing arm assembly is also provided with a nozzle flip guide plate and a nozzle flip guide bearing. The nozzle flip guide bearing is connected to the nozzle swing arm. The nozzle flip guide plate is provided with a nozzle flip guide groove that cooperates with the nozzle flip guide bearing.

4. The nozzle rocker assembly according to claim 1, characterized in that: The upper and lower sliders with the nozzle are connected with a second pin shaft, the second pin shaft is connected with a second transmission ball, and the second transmission ball is connected with the upper and lower driving components of the presser foot swing rod.

5. The nozzle rocker assembly according to claim 4, characterized in that: The presser foot rocker upper and lower driving components are provided with a transmission groove connected with the second transmission ball.

6. Tape embroidery machine, characterized in that, The coiled tape embroidery machine is provided with a nozzle swing arm assembly according to any one of claims 1 to 5.

Images