Tapping embroidery machine head assembly and embroidery machine

Abstract

The invention relates to the technical field of embroidery equipment, in particular to a taping embroidery machine head assembly and an embroidery machine, the taping embroidery machine head assembly comprises a machine shell, a needle bar unit, a presser foot unit and a charging tray unit; the needle bar unit comprises a needle bar inserted into the machine shell; the presser foot unit comprises a presser foot connecting pipe arranged on the periphery of the needle rod in a sleeving mode, a presser foot installing piece connected with the presser foot connecting pipe and used for installing a presser foot, and a presser foot rotation driving mechanism. The charging tray unit comprises a charging tray connecting pipe, a charging tray frame connected with the charging tray connecting pipe, and a charging tray driving mechanism; the taping embroidery machine head assembly further comprises a mounting frame used for being connected to a crossbeam of the embroidery machine, and the mounting frame is provided with a mounting part arranged below the machine shell; the material disc connecting pipe is rotatably arranged on the periphery of the presser foot connecting pipe in a sleeving mode, and the periphery of the material disc connecting pipe is sleeved with a rotary connecting mechanism which enables the material disc connecting pipe to be rotatably connected to the mounting part. Therefore, the taping embroidery machine head assembly which is higher in embroidery precision and capable of optimizing embroidery quality is formed.

Description

Technical Field

[0001] The invention relates to the technical field of embroidery equipment, and more specifically to a coiling embroidery machine head assembly and an embroidery machine. Background Art

[0002] The head assembly of the tape embroidery machine is a device used to embroider ribbons and / or ropes. It is generally composed of a housing, a driving spindle, a needle bar unit, a feed unit, a presser foot unit, a thread take-up rod unit, etc. The existing tape embroidery machine head drives the material tray frame of the feed unit and the presser foot mounting member of the presser foot unit (on which the presser foot for wearing the belt and the nozzle for wearing the rope are installed. The presser foot described in this article is the auxiliary presser foot for wearing the belt in the tape embroidery, not the presser foot used in flat embroidery. The tape embroidery machine head is also equipped with a presser foot used in flat embroidery, but it is not shown in the figure and is not further described in this article) to rotate synchronously. In order to increase the continuous working time of the tape embroidery, the existing feed unit uses a large-sized material tray to carry a large capacity of tape. As the size of the material tray increases, the load also increases, and the tape embroidery machine head needs to run at a high speed. When the material tray and the presser foot mounting member rotate synchronously, the rotational inertia is large during rotation, and the material tray is not easy to brake and turn around. Therefore, the rotation speed of the existing material tray is controlled at 600-700 rpm. During the operation of the tape embroidery machine head, the material tray rotates stiffly, the machine wears seriously, and the embroidery efficiency is reduced.

[0003] Based on this, the applicant previously applied for a tape embroidery device with publication number CN113584749B, which includes a casing, a needle bar unit, a presser foot unit, and a material tray part; the needle bar of the needle bar unit vertically passes through the casing, and the presser foot sleeve of the presser foot unit is sleeved outside the needle bar; a fixed sleeve is outerly provided with an outer sleeve of the presser foot sleeve, and a shaft sleeve is outerly provided with the fixed sleeve, and the fixed sleeve is fixed to the casing; the presser foot unit includes a presser foot mounting piece connected to the presser foot sleeve, and a presser foot rotation drive mechanism, and the presser foot mounting piece is used to install the presser foot and the nozzle; the material tray part includes a material tray frame and a material tray driving mechanism; the material tray driving mechanism drives the shaft sleeve to rotate, so as to drive the material tray frame to rotate; the presser foot rotation drive mechanism drives the presser foot sleeve to rotate, so as to drive the presser foot mounting piece to rotate.

[0004] The above-mentioned coiling embroidery device solves the problem that the existing material tray frame and the presser foot mounting member cannot meet the high-speed operation of the coiling embroidery due to the large size of the material tray during the synchronous rotation, and the control is more flexible, the mechanical wear is reduced, and the embroidery efficiency is improved. However, it is found in the actual use process that the embroidery accuracy of the above-mentioned coiling embroidery device needs to be improved, and the limitation of embroidery accuracy will affect the quality of the embroidery work. Summary of the invention

[0005] One of the purposes of the present invention is to address the deficiencies of the prior art and provide a tape embroidery machine head assembly with higher embroidery precision to optimize the quality of the embroidery work.

[0006] The second object of the present invention is to address the deficiencies of the prior art and provide an embroidery machine having the above-mentioned coiling embroidery machine head assembly to form higher quality embroidery.

[0007] The technical solutions of the present invention are as follows: The tape embroidery machine head assembly includes: a machine housing, a needle bar unit, a presser foot unit and a material tray unit; The needle bar unit includes a needle bar inserted into the housing; The presser foot unit comprises: a presser foot connecting tube rotatably sleeved on the outer periphery of the needle bar, a presser foot mounting member connected to the presser foot connecting tube and used for mounting the presser foot, and a presser foot rotation driving mechanism for driving the presser foot connecting tube to rotate; The tray unit comprises: a tray connecting pipe, a tray frame connected to the tray connecting pipe, and a tray driving mechanism for driving the tray connecting pipe to rotate; The coiling embroidery machine head assembly also includes: a mounting frame which is independently arranged from the machine housing and used to be connected to the embroidery machine beam, and the mounting frame has a mounting portion which is arranged below the machine housing; The material tray connecting pipe is rotatably sleeved on the outer periphery of the presser foot connecting pipe, and the outer periphery of the material tray connecting pipe is sleeved with: a rotating connection mechanism that enables the material tray connecting pipe to be rotatably connected to the mounting part.

[0008] As a further preferred solution, the rotating connection mechanism is: a bearing sleeved on the outer periphery of the material tray connecting pipe; The outer ring of the bearing is fixedly connected to the mounting portion, and the inner ring is fixedly connected to the material tray connecting pipe, so that the material tray connecting pipe is rotatably connected to the mounting portion.

[0009] As a further preferred solution, the inner wall of the material tray connecting tube and the outer wall of the presser foot connecting tube are arranged to be non-contacting.

[0010] As a further preferred solution, the outer periphery of the presser foot connecting pipe is also sleeved with: a positioning sleeve located above the tray connecting pipe; The positioning sleeve is connected to the housing, and the inner periphery of the positioning sleeve is in contact with and matched with the outer periphery of the presser foot connecting pipe.

[0011] As a further preferred solution, the positioning sleeve is fixedly connected to the casing.

[0012] As a further preferred embodiment, the presser foot rotation driving mechanism comprises: a presser foot rotation motor, a presser foot driving wheel sleeved on the outer periphery of the presser foot rotation motor driving shaft, a presser foot driven wheel sleeved on the outer periphery of the presser foot connecting tube, and a presser foot transmission connecting member for transmission connection between the presser foot driving wheel and the presser foot driven wheel; The presser foot driven wheel is connected to the presser foot connecting pipe, so that the presser foot driven wheel can drive the presser foot connecting pipe to rotate.

[0013] As a further preferred solution, the presser foot driven wheel is rotatably connected to the housing.

[0014] As a further preferred solution, the presser foot driven wheel is placed in the casing.

[0015] As a further preferred solution, the presser foot driven wheel is rotatably connected to the mounting frame.

[0016] As a further preferred solution, the presser foot driven wheel is key-connected to the presser foot connecting pipe; The presser foot unit also includes a presser foot lifting driving mechanism which is connected to the presser foot connecting tube and drives the presser foot connecting tube to move up and down.

[0017] As a further preferred solution, the tray driving mechanism includes: a tray rotating motor, a tray driving wheel sleeved on the outer periphery of the tray rotating motor driving shaft, a tray driven wheel sleeved on the outer periphery of the tray connecting pipe, and a tray transmission connecting member for transmission connection between the tray driving wheel and the tray driven wheel; The material tray driven wheel is fixedly connected to the material tray connecting pipe, so that: the material tray driven wheel can drive the material tray connecting pipe to rotate.

[0018] The embroidery machine comprises the coiling embroidery machine head assembly described in any of the above schemes, and an embroidery machine beam, wherein the mounting frame of the coiling embroidery machine head assembly is connected to the embroidery machine beam.

[0019] The main beneficial effects of the above technical solution are: By connecting the material tray connecting tube to the external beam support instead of the more cramped casing, the convenience of disassembly and assembly of the material tray connecting tube is improved; at the same time, connecting the material tray connecting tube to the part of the beam support located below the casing can reduce the volume requirement for the material tray connecting tube, so that it can be driven more easily, reduce the rotational inertia of the material tray connecting tube when running at high speed, and improve the rotation control accuracy; thereby: when the disc embroidery machine head device is used for embroidery, the material tray frame and the thread material installed on the material tray frame can be rotated according to the rotation requirements with higher precision, so as to form higher quality embroidery.

[0020] At the same time, the material tray connecting tube is rotatably connected to the shell body through a rotating connection mechanism sleeved on the outer periphery of the material tray connecting tube, so as to reduce the volume requirement of the material tray connecting tube, make it easier to drive, reduce the rotational inertia of the material tray connecting tube when running at high speed, and improve the rotation control accuracy; thus, when the disc embroidery machine head is used for embroidery, the material tray frame and the thread material installed on the material tray frame can be rotated according to the rotation requirements with higher accuracy, so as to form higher quality embroidery.

[0021] Further or more detailed beneficial effects will be described in detail in conjunction with specific examples in the specific implementation manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below in conjunction with the accompanying drawings: Figure 1 This is a schematic diagram of the installation of the tape embroidery machine head assembly on the embroidery machine frame.

[0023] Figure 2 It is a cross-sectional diagram of the tape embroidery machine head assembly.

[0024] Figure 3 for Figure 2 A partial enlarged schematic diagram of part A.

[0025] Figure 4 It is a schematic diagram of the presser foot rotation drive mechanism and the material tray drive mechanism.

[0026] Figure 5 It is a schematic diagram of the presser foot lifting drive mechanism. DETAILED DESCRIPTION

[0027] The present invention is specifically described below with reference to the embodiments: Embodiment 1: The tape embroidery machine head assembly is generally used to be installed on the embroidery machine frame 10, and is used to embroider embroidery threads (belts and / or ropes and other belt-like objects) into fabrics and other items to form embroidery works.

[0028] Existing tape embroidery machine head assembly, such as the attached Figure 1 To Attachment Figure 5 As shown, it mainly includes: a casing 1 for connecting to an embroidery machine frame 10 and for assembling various parts, a needle bar unit for embroidering embroidery thread into fabric, a presser foot unit for cooperating with the embroidery action to press and position the fabric, and a tray unit for placing embroidery thread (belts and / or ropes and other belt-like objects).

[0029] Among them, as attached Figure 1 As shown, the needle bar unit mainly includes a needle bar 2 in a vertical axis structure, the needle bar 2 passes through the housing 10 in the vertical direction, and the lower end of the needle bar 2 passes through the housing 10 downward and is connected to an embroidery needle. At the same time, the needle bar unit also includes a needle bar driving connection structure (generally composed of a cam and a connecting rod mechanism) that is transmission-connected to the needle bar 2. When the tape embroidery machine head assembly is connected to the embroidery machine beam 10, the needle bar driving connection structure is transmission-connected to the main shaft of the embroidery machine, so that: when the main shaft of the embroidery machine rotates, the needle bar 2 can be driven to move up and down through the needle bar driving connection structure to perform embroidery actions.

[0030] Of course, the embroidery machine beam 10 is often connected to a plurality of tape embroidery head assemblies. At this time, the needle bars 2 of the plurality of tape embroidery head assemblies are often transmission-connected to the main shaft of the same embroidery machine, so that the main shaft of the embroidery machine can synchronously drive the plurality of tape embroidery head assemblies to perform embroidery.

[0031] Among them, as attached Figure 1 As shown, the presser foot unit mainly includes a presser foot connecting tube 3.1 that is rotatably sleeved (sleeving in this application refers to: direct sleeve, that is, the sleeve part and the sleeved part are directly opposite to each other, and there is no other component placed between the sleeve part and the sleeved part; or indirect sleeve, that is, other components are sleeved on the periphery of the sleeved part, and the sleeve part is sleeved on the periphery of the sleeved part by being sleeved on the periphery of the component) on the periphery of the needle bar 2. The presser foot connecting tube 3.1 is a sleeve structure that is sleeved on the periphery of the needle bar 2 and can rotate around the needle bar 2 as the central axis. The lower end of the presser foot connecting tube 3.1 passes through the housing 10 downward and is connected to a presser foot mounting part 3.2 for mounting the presser foot; according to requirements, the presser foot mounting part 3.2 can also be synchronously installed with other auxiliary assembly parts such as a nozzle and a rocker rod. The presser foot unit also includes a presser foot rotation drive mechanism for driving the presser foot connecting tube 3.1 to rotate (the specific structure of the presser foot rotation drive mechanism is described below).

[0032] The tray unit mainly includes a tray connecting tube 4.1 sleeved on the outer periphery of the presser foot connecting tube 3.1, and a tray frame connected to the tray connecting tube 4.1, the tray frame is used to install a tray with embroidery thread (belts and / or ropes, etc.), and two trays are generally provided.

[0033] During the embroidery process, the presser foot connecting tube 3.1 and the material tray connecting tube 4.1 need to be driven to rotate to adapt to the embroidery action that needs to be constantly adjusted. If the material tray connecting tube 4.1 is directly connected to the presser foot connecting tube 3.1, problems such as mechanical wear during synchronous rotation and low embroidery efficiency will occur.

[0034] Based on this, the applicant previously applied for a tape embroidery device with publication number CN113584749B, which is driven and set separately by the material tray connecting tube 4.1 and the presser foot connecting tube 3.1, that is, a fixed sleeve is provided on the outer periphery of the presser foot connecting tube 3.1, the material tray connecting tube 4.1 is rotatably sleeved on the outer periphery of the fixed sleeve, and a material tray driving mechanism for driving the material tray connecting tube 4.1 to rotate is provided, and the fixed sleeve is connected to the casing 10, so as to solve the problem that the material tray is too large to meet the high-speed operation of tape embroidery during the synchronous rotation of the existing material tray frame and the presser foot mounting part, the control is more flexible, the mechanical wear is reduced, and the embroidery efficiency is improved.

[0035] In the above scheme, the three-layer sleeve structure formed by the presser foot connecting tube 3.1, the fixed sleeve and the material tray connecting tube 4.1 are all connected to the casing 1. The casing 1 not only has a relatively narrow internal space, but also has many additional parts installed, such as the above-mentioned needle bar drive connecting structure, etc., which leads to a large space limitation for the installation of the material tray connecting tube 4.1. The installation of the material tray connecting tube 4.1 and the subsequent disassembly and maintenance of the material tray connecting tube 4.1 are very difficult.

[0036] Based on this, in order to further optimize the convenience of assembly and disassembly of the above-mentioned coiling embroidery device, the present application mainly improves the material tray connecting tube 4.1, specifically: As attached Figure 1 As shown, the tape embroidery machine head assembly in the present application also includes: a mounting frame 5 which is independently arranged from the casing 1 and used to be connected to the embroidery machine beam 10 , and the mounting frame 5 has a mounting portion 5.1 disposed below the casing 1 .

[0037] At this time, the presser foot connecting tube 3.1 can be rotatably connected to the mounting portion 5.1 of the mounting frame 5 by, for example, the above-mentioned fixing sleeve or the rotating connection mechanism described below.

[0038] In this way, by setting up the mounting frame 5 and connecting the material tray connecting tube 4.1 to the mounting portion 5.1 of the mounting frame 5 located below the casing 1, the material tray connecting tube 4.1 has a relatively larger installation / disassembly space relative to the narrow space of the casing 1, so as to improve the convenience of disassembly and assembly of the material tray connecting tube 4.1, thereby improving the convenience of disassembly and assembly of the tape embroidery machine head assembly.

[0039] At the same time, for the coiling embroidery machine head assembly, there are certain requirements for the position of the housing 1 and the position of the material tray connecting tube 4.1 connected to the material tray frame, which cannot be too high or too low; thus, higher requirements are also put forward for the size of the material tray connecting tube 4.1. When a coiling embroidery device such as the one with the publication number CN113584749B has a fixed sleeve connected to the housing 1 and the material tray connecting tube 4.1 is sleeved on the fixed sleeve, the lower end of the material tray connecting tube 4.1 needs to extend to the installation position of the material tray frame, and the upper end needs to be close to or even inserted into the housing 1, resulting in the material tray connecting tube 4.1 needing to be relatively long, and thus requiring a larger volume for the material tray connecting tube 4.1.

[0040] In the present application, by rotatably connecting the material tray connecting tube 4.1 to the mounting portion 5.1 of the mounting frame 5, the upper end of the material tray connecting tube 4.1 does not need to be close to or even inserted into the housing 1, and the upper end of the material tray connecting tube 4.1 only needs to extend to the position of the mounting portion 5.1 located below the housing 1. That is, the volume requirement for the material tray connecting tube 4.1 can be reduced (that is, while the presser foot connecting tube 3.1 and the material tray connecting tube 4.1 can be driven separately, the material tray connecting tube 4.1 can be set smaller), so that the material tray connecting tube 4.1 can be driven more easily, the rotation inertia of the material tray connecting tube 4.1 when running at high speed is reduced, and the rotation control accuracy is improved; and further, when the embroidery head assembly is used for embroidery, the material tray frame and the thread material installed on the material tray frame can be rotated according to the rotation requirements with higher accuracy, so as to form higher quality embroidery.

[0041] Further consideration is that in the above scheme, the tray connecting tube 4.1 needs to be sleeved not only on the outer periphery of the presser foot connecting tube 3.1, but also on the outer periphery of the fixed sleeve, so that the tray connecting tube 4.1 still has a large volume requirement, resulting in the need to set the diameter and volume of the tray connecting tube 4.1 to be larger. At this time, when the tray connecting tube 4.1 is driven to rotate, the tray connecting tube 4.1 still has a large rotational inertia when rotating at high speed, resulting in a certain deviation in its rotation control accuracy.

[0042] Based on this, on the basis of the above scheme, the present application further improves the connection structure of the material tray connecting tube 4.1 to form a new tape embroidery machine head assembly.

[0043] Specifically, the material tray connecting tube 4.1 in the present application can be rotatably sleeved on the outer periphery of the presser foot connecting tube 3.1 (the material tray connecting tube 4.1 is a sleeve structure that is sleeved on the outer periphery of the fixed sleeve and can rotate with the presser foot connecting tube 3.1 as the central axis), and the outer periphery of the material tray connecting tube 4.1 is sleeved with: a rotating connection mechanism that enables the material tray connecting tube 4.1 to be rotatably connected to the mounting portion 5.1.

[0044] For rotating connections: In one form, the rotating connection mechanism can be a sleeve that is sleeved on the outer periphery of the material tray connecting tube 4.1, the outer ring of the sleeve is fixedly connected to the mounting portion 5.1 of the mounting frame 5, and the inner periphery is in contact with the material tray connecting tube 4.1; at the same time, the sleeve is provided with a limiting structure that prevents the material tray connecting tube 4.1 from being separated from the sleeve, so that the material tray connecting tube 4.1 can be rotationally connected to the mounting portion 5.1 of the mounting frame 5 through the rotating connection mechanism of the sleeve structure.

[0045] Alternatively, in another form, the rotating connection mechanism is: a bearing 8 sleeved on the outer periphery of the tray connecting tube 4.1; the outer ring of the bearing 8 is fixedly connected to the mounting portion 5.1 of the mounting frame 5, and the inner ring is fixedly connected to the tray connecting tube 4.1, so that: the tray connecting tube 4.1 is rotationally connected to the mounting portion 5.1 of the mounting frame 5 through the rotating connection mechanism of the bearing 8 structure.

[0046] For example, Figure 2 and attached Figure 3 As shown, the mounting portion 5.1 of the mounting frame 5 is provided with an insertion hole 5.11 for the needle rod 2 to be inserted, the upper end of the material tray connecting tube 4.1 has a portion that is upwardly inserted into the insertion hole 5.11, the bearing 8 is installed in the insertion hole 5.11, and is sleeved on the outer periphery of the portion of the material tray connecting tube 4.1 inserted into the insertion hole 5.11, and the outer ring of the bearing 8 is fixedly connected to the inner wall of the insertion hole 5.11, and the inner ring is fixedly connected to the portion of the material tray connecting tube 4.1 inserted into the insertion hole 5.11, so that: the material tray connecting tube 4.1 is rotatably connected to the mounting portion 5.1 of the mounting frame 5 through the rotating connection mechanism of the bearing 8 structure.

[0047] Alternatively, the mounting portion 5.1 may not be provided with the insertion hole 5.11 while making way for the needle bar 2, the presser foot connecting tube 3.1 and the material tray connecting tube 4.1; in this case, the bearing 8 is not embedded in the mounting portion 5.1, but the outer ring of the bearing 8 is directly fixedly connected to the mounting portion 5.1 of the mounting frame 5.

[0048] In this way, the tray connecting tube 4.1 can be directly sleeved on the outer periphery of the presser foot connecting tube 3.1 (that is, no additional sleeve structure can be provided between the tray connecting tube 4.1 and the presser foot connecting tube 3.1) to realize the separate driving of the presser foot connecting tube 3.1 and the tray connecting tube 4.1. That is, the volume requirement of the tray connecting tube 4.1 can be further reduced (that is, while the presser foot connecting tube 3.1 and the tray connecting tube 4.1 can be driven separately, the diameter of the tray connecting tube 4.1 can be set smaller, and then the tray connecting tube 4.1 can be set smaller as a whole), and the smaller tray connecting tube 4.1 can be driven more easily, reducing the rotation inertia of the tray connecting tube 4.1 when running at high speed, and improving the rotation control accuracy; and then: when the embroidery machine head is used for embroidery, the tray frame and the thread material installed on the tray frame can be rotated according to the rotation requirements with higher accuracy, so as to form a higher quality embroidery.

[0049] Furthermore, the inner wall of the tray connecting tube 4.1 and the outer wall of the presser foot connecting tube 3.1 may be in contact with each other, but this may easily lead to interference in the rotation between the tray connecting tube 4.1 and the presser foot connecting tube 3.1, affecting the rotation accuracy. Therefore, in this embodiment, the inner wall of the tray connecting tube 4.1 and the outer wall of the presser foot connecting tube 3.1 are preferably arranged in a non-contact manner, so as to better avoid the rotation interference between the tray connecting tube 4.1 and the presser foot connecting tube 3.1, so as to better improve the rotation control accuracy, and thus improve the embroidery accuracy.

[0050] At this time, in order to better improve the installation stability and rotation stability of the presser foot connecting pipe 3.1, as shown in the attached Figure 3 As shown, the outer periphery of the presser foot connecting tube 3.1 is also sleeved with a positioning sleeve 1.1 located above the material tray connecting tube 4.1; the positioning sleeve 1.1 is connected to the housing 1, and the inner periphery of the positioning sleeve 1.1 is in contact with the outer periphery of the presser foot connecting tube 3.1. That is, when viewed from top to bottom, the inner periphery of the positioning sleeve 1.1 fits the outer periphery of the presser foot connecting tube 3.1, so that the positioning sleeve 1.1 can position the relatively long presser foot connecting tube 3.1, improve the overall installation accuracy, and the stability of the movement of the presser foot connecting tube 3.1. The positioning sleeve 1.1 is preferably a shaft sleeve structure with good wear resistance.

[0051] The positioning sleeve 1.1 can be movably connected to the connecting portion 5.1, and the positioning sleeve 1.1 can rotate around the presser foot connecting tube 3.1.

[0052] Alternatively, the positioning sleeve 1.1 is fixedly connected to the housing 1. For example, the positioning sleeve 1.1 is detachably fixedly connected to the housing 1 by means of screws, or the positioning sleeve 1.1 is non-detachably fixedly connected to the housing 1 by means of welding.

[0053] When the positioning sleeve 1.1 can be movably connected to the housing 1, although the above movement requirements can be met, the positioning sleeve 1.1 cannot provide relatively stable positioning support. Therefore, in this embodiment, the positioning sleeve 1.1 is preferably fixedly connected to the housing 1 to better improve the installation stability and rotation stability of the presser foot connecting tube 3.1.

[0054] Based on the above scheme, for the presser foot rotation drive mechanism: As attached Figure 4 As shown, the presser foot rotation driving mechanism in this embodiment includes: a presser foot rotation motor 3.3, a presser foot driving wheel 3.4, a presser foot driven wheel 3.5 and a presser foot transmission connecting member 3.6.

[0055] The presser foot rotating motor 3.3 is a rotating motor connected to the embroidery machine frame 10 or the housing 1 (generally connected to the housing 1) and used to provide rotating power, and has a presser foot rotating motor driving shaft for outputting rotating power, and the presser foot rotating motor driving shaft is fixedly sleeved with a presser foot driving wheel 3.4. The presser foot connecting tube 3.1 is sleeved with a presser foot driven wheel 3.5, and the presser foot driven wheel 3.5 is connected to the presser foot connecting tube 3.1 (for example, the key connection described below), and the presser foot transmission connecting member 3.6 is a transmission belt or a transmission chain or a transmission gear or a corresponding transmission structure that transmits and connects the presser foot driving wheel 3.4 and the presser foot driven wheel 3.5. So that: when it is necessary to drive the presser foot connecting tube 3.1 to drive the presser foot mounting piece 3.2 and the presser foot to rotate, the presser foot rotating motor 3.3 drives the presser foot rotating motor drive shaft to rotate, which can drive the presser foot driving wheel 3.4 to rotate, and drive the presser foot driven wheel 3.5 to rotate through the presser foot transmission connecting piece 3.6, thereby driving the presser foot connecting tube 3.1 to rotate.

[0056] According to the length of the driving shaft of the presser foot rotating motor, one or more bearing structures for supporting the driving shaft of the presser foot rotating motor may be connected to the housing 1.

[0057] In order to make the presser foot connecting tube 3.1 rotate stably, it is necessary to rotationally connect the presser foot connecting tube 3.1 or rotationally connect the presser foot driven wheel 3.5; if the presser foot connecting tube 3.1 is rotationally connected to the casing 1, when the presser foot rotary drive mechanism is rotationally driven, an unnecessary external force will be generated on the presser foot connecting tube 3.1, which can easily pull the presser foot connecting tube 3.1 off-center, thereby hindering the embroidery action.

[0058] Based on this, in this embodiment, it is preferred to rotatably connect the presser foot driven wheel 3.5 to ensure stable transmission while minimizing the impact on the presser foot connecting tube 3.1.

[0059] As a rotational connection mode, the presser foot driven wheel 3.5 can be rotationally connected to the mounting frame 5. For example, the presser foot driven wheel 3.5 is placed between the housing 1 and the mounting portion 5.1 of the mounting frame 5, and the lower end of the presser foot driven wheel 3.5 is rotationally connected to the mounting frame 5, so that the presser foot driven wheel 3.5 can rotate as described above.

[0060] As another rotational connection mode, the presser foot driven wheel 3.5 is rotationally connected to the housing 1. Figure 3 As shown, the presser foot driven wheel 3.5 has a part which is sleeved on the outer periphery of the positioning sleeve 1.1, and the part of the presser foot driven wheel 3.5 is rotatably connected to the positioning sleeve 1.1, so that the presser foot driven wheel 3.5 can rotate with the needle bar 2 as the axis.

[0061] At this time, the presser foot driven wheel 3.5 can be placed inside the housing 1, or outside the housing 1 and between the housing 1 and the mounting portion 5.1 of the mounting frame 5. However, if the presser foot driven wheel 3.5 is placed between the housing 1 and the mounting portion 5.1 of the mounting frame 5, the mounting portion 5.1, the fixing sleeve and the material tray connecting tube 4.1 will be forced to move downward, occupying too much embroidery space below, and the problem of embroidery interference will easily occur. Therefore, when the presser foot driven wheel 3.5 is rotatably connected to the housing 1, the presser foot driven wheel 3.5 is preferably placed inside the housing 1, which will not only prevent the mounting portion 5.1, the fixing sleeve and the material tray connecting tube 4.1 from moving downward, but also protect the driven wheel structure that is easily affected by dust and the like and reduces the smoothness of transmission.

[0062] Furthermore, for the presser foot connecting tube 3.1, it is also necessary to adapt to the embroidery action to move up and down to press or release the fabric. Based on the setting of the above-mentioned presser foot rotation drive mechanism, in this embodiment, the presser foot driven wheel 3.5 is key-connected to the presser foot connecting tube 3.1; and the presser foot unit also includes: a presser foot lifting drive mechanism connected to the presser foot connecting tube 3.1 to drive the presser foot connecting tube 3.1 to move up and down.

[0063] Specifically, one of the presser foot connecting tube 3.1 and the presser foot driven wheel 3.5 is provided with a strip groove extending in the vertical direction, and the other is provided with a block inserted into the strip groove, so that: the presser foot driven wheel 3.5 can drive the presser foot connecting tube 3.1 to rotate synchronously, and the presser foot lifting drive mechanism can also drive the presser foot connecting tube 3.1 to perform lifting motion. The extension path length of the strip groove is set according to the path length of the lifting motion of the presser foot connecting tube 3.1.

[0064] In this embodiment, the outer surface of the presser foot connecting tube 3.1 is provided with a strip groove extending in the vertical direction, and the inner surface of the presser foot driven wheel 3.5 is provided with a protrusion and a block inserted into the strip groove.

[0065] And, if attached Figure 5 As shown, the presser foot lifting drive mechanism mainly includes: a lifting drive motor 7.1, a lifting driving wheel 7.2, a lifting driven wheel 7.3, a lifting transmission member 7.4, a driving member 7.5, an inserting part 7.51 and a follower connecting part 3.11. The lifting drive motor 7.1 is a rotary motor connected to the embroidery machine beam 10 or the housing 1 (generally connected to the housing 1) and used to provide rotational power. It has a lifting drive motor drive shaft for outputting rotational power. The lifting drive motor drive shaft is fixedly sleeved with a lifting driving wheel 7.2, and one or more lifting driven wheels 7.3 are rotatably connected to the housing 1. The lifting driving wheel 7.2 and the one or more lifting driven wheels 7.3 are connected to each other through a lifting transmission member 7.4, which is a transmission belt or a transmission chain. The lifting transmission member 7.4 has a part that is lifted and moved vertically, and the part is fixedly connected to a driving member 7.5. The lifting drive motor 7.1 drives the lifting drive motor drive shaft to rotate, so that the driving member 7.5 can be driven to move up and down.

[0066] At the same time, the outer periphery of the presser foot connecting tube 3.1 is also provided with: a follower connecting portion 3.11 fixedly connected to the presser foot connecting tube 3.1 or integrally formed with the presser foot connecting tube 3.1, and the follower connecting portion 3.11 has an inserting groove 3.12 arranged around the presser foot connecting tube 3.1 and with the notch facing outward. The driving member 7.5 has a driving arm 7.51 adapted to be inserted into the inserting groove 3.12.

[0067] So that: the presser foot connecting tube 3.1 can not only rotate synchronously with the presser foot driven wheel 3.5, but also can drive the driving member 7.5 to move up and down through the lifting drive motor 7.1, so as to drive the presser foot connecting tube 3.1 to move up and down, and then drive the presser foot connected to the bottom of the presser foot connecting tube 3.1 to move up and down according to the embroidery action.

[0068] Furthermore, a guide rod 7.6 extending vertically may be provided in the housing 1, and the driving member 7.5 is slidably connected to the guide rod 7.6 and can slide up and down on the guide rod 7.6 to improve the stability of the lifting and lowering movement of the presser foot sleeve 3.1.

[0069] Based on the above solution, for the tray drive mechanism: As attached Figure 4 As shown, the tray driving mechanism in this embodiment includes: a tray rotating motor 4.2, a tray driving wheel 4.3, a tray driven wheel 4.4 and a tray transmission connecting member 4.5.

[0070] The tray rotating motor 4.2 is a rotating motor connected to the embroidery machine beam 10 or the housing 1 (generally connected to the housing 1) and used to provide rotating power. It has a tray rotating motor drive shaft for outputting rotating power, and the outer periphery of the tray rotating motor drive shaft is fixedly sleeved with a tray driving wheel 4.3. The outer periphery of the tray connecting tube 4.1 is sleeved with a tray driven wheel 4.4, and the tray driven wheel 4.4 is fixedly connected to the tray connecting tube 4.1 (the fixed connection means that the tray driven wheel 4.4 is fixedly connected with the tray connecting tube 4.1 by screws or other connecting parts or is fixed with the tray connecting tube 4.1 in an integral molding manner), and the tray transmission connecting part 4.5 is a transmission belt or transmission chain or transmission gear or corresponding transmission structure that transmits and connects the tray driving wheel 4.3 and the tray driven wheel 4.4. So that: when it is necessary to drive the tray connecting tube 4.1 to drive the tray frame to rotate, the tray rotating motor 4.2 drives the tray rotating motor drive shaft to rotate, which can drive the tray driving wheel 4.3 to rotate, and drive the tray driven wheel 4.4 to rotate through the tray transmission connector 4.5, thereby driving the tray connecting tube 4.1 to rotate.

[0071] According to the length of the driving shaft of the motor for rotating the material tray, one or more bearing structures for supporting the driving shaft of the motor for rotating the material tray may be connected to the housing 1.

[0072] Embodiment 2: An embroidery machine includes a coiled embroidery head assembly in any of the solutions described in the first embodiment, and an embroidery machine beam 10, wherein a housing 1 and a mounting frame 5 of the coiled embroidery head assembly are connected to the embroidery machine beam 10. The housing 1 and the mounting frame 5 can be detachably fixed to the embroidery machine beam 10 by, for example, a screw structure; or, in some environments that require special stability, the housing 1 and the mounting frame 5 can also be considered to be non-detachably connected to the embroidery machine beam 10 by, for example, welding.

[0073] The above description is only a preferred embodiment of the present invention and does not limit the scope of the present invention. In addition, the terms "vertical", "horizontal", "front", "rear", etc. mentioned in the embodiments of the present invention indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product is usually placed when in use. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. It should be further explained that, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like in the description should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0074] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. Tape embroidery machine head assembly, including: A machine housing (1), a needle bar unit, a presser foot unit and a material tray unit; The needle bar unit comprises a needle bar (2) inserted into the housing (1); The presser foot unit comprises: a presser foot connecting tube (3.1) rotatably sleeved on the outer periphery of the needle bar (2), a presser foot mounting member (3.2) connected to the presser foot connecting tube (3.1) and used for mounting the presser foot, and a presser foot rotation driving mechanism for driving the presser foot connecting tube (3.1) to rotate; The tray unit comprises: a tray connecting pipe (4.1), a tray frame connected to the tray connecting pipe (4.1), and a tray driving mechanism for driving the tray connecting pipe (4.1) to rotate; Features: The coiling embroidery machine head assembly further comprises: a mounting frame (5) which is independently arranged from the housing (1) and is used to be connected to the embroidery machine beam (10); the mounting frame (5) comprises a mounting portion (5.1) which is arranged below the housing (1); The material tray connecting tube (4.1) is rotatably sleeved on the outer circumference of the presser foot connecting tube (3.1), and the outer circumference of the material tray connecting tube (4.1) is sleeved with a rotating connection mechanism that enables the material tray connecting tube (4.1) to be rotatably connected to the mounting portion (5.1).

2. The tape embroidery machine head assembly according to claim 1, characterized in that: The rotating connection mechanism comprises: a bearing (8) sleeved on the outer circumference of the tray connecting pipe (4.1); The outer ring of the bearing (8) is fixedly connected to the mounting portion (5.1), and the inner ring is fixedly connected to the material tray connecting tube (4.1), so that the material tray connecting tube (4.1) is rotatably connected to the mounting portion (5.1).

3. The tape embroidery machine head assembly according to claim 1, characterized in that: The inner wall of the material tray connecting tube (4.1) and the outer wall of the presser foot connecting tube (3.1) are arranged in a non-contact manner.

4. The tape embroidery machine head assembly according to any one of claims 1 to 3, characterized in that: The outer circumference of the presser foot connecting tube (3.1) is also sleeved with: a positioning sleeve (1.1) located above the material tray connecting tube (4.1); The positioning sleeve (1.1) is connected to the housing (1), and the inner periphery of the positioning sleeve (1.1) is in contact with and fits with the outer periphery of the presser foot connecting tube (3.1).

5. The tape embroidery machine head assembly according to claim 4, characterized in that: The positioning sleeve (1.1) is fixedly connected to the casing (1).

6. The tape embroidery machine head assembly according to claim 1, characterized in that: The presser foot rotation drive mechanism comprises: a presser foot rotation motor (3.3), a presser foot driving wheel (3.4) sleeved on the outer circumference of the presser foot rotation motor driving shaft, a presser foot driven wheel (3.5) sleeved on the outer circumference of the presser foot connection tube (3.1), and a presser foot transmission connecting member (3.6) for transmission connection between the presser foot driving wheel (3.4) and the presser foot driven wheel (3.5); The presser foot driven wheel (3.5) is connected to the presser foot connecting tube (3.1) so that the presser foot driven wheel (3.5) can drive the presser foot connecting tube (3.1) to rotate.

7. The tape embroidery machine head assembly according to claim 6, characterized in that: The presser foot driven wheel (3.5) is rotatably connected to the housing (1).

8. The tape embroidery machine head assembly according to claim 7, characterized in that: The presser foot driven wheel (3.5) is placed inside the housing (1).

9. The tape embroidery machine head assembly according to claim 6, characterized in that: The presser foot driven wheel (3.5) is rotatably connected to the mounting frame (5).

10. The tape embroidery machine head assembly according to any one of claims 7 to 9, characterized in that: The presser foot driven wheel (3.5) is key-connected to the presser foot connecting tube (3.1); The presser foot unit further comprises: a presser foot lifting drive mechanism connected to the presser foot connecting tube (3.1) and driving the presser foot connecting tube (3.1) to move up and down.

11. The tape embroidery machine head assembly according to claim 1, characterized in that: The tray driving mechanism comprises: a tray rotating motor (4.2), a tray driving wheel (4.3) sleeved on the outer circumference of a driving shaft of the tray rotating motor, a tray driven wheel (4.4) sleeved on the outer circumference of the tray connecting pipe (4.1), and a tray transmission connecting member (4.5) for transmission connection between the tray driving wheel (4.3) and the tray driven wheel (4.4); The material tray driven wheel (4.4) is fixedly connected to the material tray connecting tube (4.1) so that: the material tray driven wheel (4.4) can drive the material tray connecting tube (4.1) to rotate.

12. Embroidery machine, characterized in that: It comprises the coiled tape embroidery machine head assembly as claimed in any one of claims 1 to 11, and an embroidery machine beam (10), wherein the mounting frame (5) of the coiled tape embroidery machine head assembly is connected to the embroidery machine beam (10).

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