Power movable type active thread feeding system and embroidery machine

Abstract

The utility model discloses a power movable type active thread feeding system and an embroidery machine, and aims to provide the power movable type active thread feeding system and the embroidery machine which adopt an active thread feeding mode, actively provide embroidery threads for each needle in the embroidery process so as to improve the quality of embroidery products and meet the use requirements of the current multi-station embroidery machine. The device comprises a thread feeding unit, a rotating mechanism and a translation mechanism, the thread feeding unit comprises a thread feeding wheel rotationally arranged on a rack of the embroidery machine, and the rotating mechanism drives the thread feeding wheel to rotate; the plurality of swing arms are distributed in sequence, the swing arms are rotationally arranged on a rack of the embroidery machine, and line pressing wheels are arranged on the swing arms; and the swing arm mechanism is arranged on the rack in a sliding mode, the translation mechanism drives the swing arm mechanism to translate so that the swing arm mechanism can sequentially correspond to the swing arms, and the swing arm mechanism drives the corresponding swing arm to rotate so that the corresponding wire pressing wheel can be tightly pressed on the surface of the wire feeding wheel.

Description

Technical Field

[0001] The utility model relates to the field of thread feeding of embroidery machines, in particular to a powered mobile active thread feeding system and an embroidery machine. Background Art

[0002] With the development of embroidery machines, the number of heads on embroidery machines has been increasing. Currently, there are dozens or even hundreds of heads in multi-station embroidery machines, and each head is arranged in a row. Each head includes a needle bar rack, on which a row of embroidery needles are arranged. The embroidery thread passing through the embroidery needles in the embroidery machine needs to maintain a suitable tightness, not too tight or too loose; if the embroidery thread is too tight, the fabric will be pulled loose by the embroidery thread during the embroidery process, and even holes will appear under the pulling of the embroidery thread, affecting the quality of the embroidery; if the embroidery thread is too loose, the embroidery thread of the embroidery pattern will be loose, seriously reducing the quality of the embroidery.

[0003] In order to solve the above problems, the current embroidery machine uses a thread presser on the needle bar frame. Each embroidery needle corresponds to a thread presser. Each thread presser includes several thread presser knobs. The embroidery thread corresponding to the embroidery needle first passes through the thread presser knobs of the corresponding thread presser, and then passes through the corresponding embroidery needle. The thread presser knob is manually rotated to adjust the pressing force of the thread presser on the embroidery thread, thereby adjusting the tightness of the embroidery thread. The current embroidery machine uses a thread presser to manually adjust the tightness of the embroidery thread. Although it can solve the problem of the tightness of the embroidery thread to a certain extent, it has the following shortcomings:

[0004] The tightness of the embroidery thread depends on manual adjustment by the operator, but manual adjustment has the problems of low adjustment efficiency, poor consistency of adjustment of the tightness of the embroidery thread, and the quality of the embroidery cannot be guaranteed; there is also the problem of high labor costs.

[0005] On the other hand, the use of a thread crimper to manually adjust the tightness of the embroidery thread is suitable for use in situations where there are fewer heads (3-6 heads) in traditional embroidery machines. Traditional embroidery machines have fewer heads and fewer thread crimpers. Operators can also manually adjust the tightness of the embroidery thread to adapt to the production rhythm; however, with the development of embroidery machines, there are dozens or even hundreds of heads in multi-station embroidery machines, and hundreds or even thousands of embroidery needles (the number of thread crimpers is the same as that of embroidery needles). In this case, manually adjusting the tightness of the embroidery thread cannot adapt to the production rhythm at all. Therefore, the current method of manually adjusting the tightness of the embroidery thread using a thread crimper is increasingly unable to meet the current use needs of multi-station embroidery machines. Utility Model Content

[0006] The first purpose of the utility model is to provide a power mobile active thread feeding system and an embroidery machine which adopts an active thread feeding method to actively provide embroidery thread for each needle in the embroidery process to improve the quality of embroidery products and meet the use requirements of current multi-station embroidery machines.

[0007] The second purpose of the utility model is to provide a powered mobile active thread feeding system and an embroidery machine which can reduce the manufacturing cost.

[0008] The technical solution of the utility model is:

[0009] A powered mobile active wire feeding system comprises a wire feeding unit, a rotating mechanism and a translation mechanism, wherein the wire feeding unit comprises:

[0010] Rotate a thread feeding wheel arranged on the frame of the embroidery machine, and the rotating mechanism drives the thread feeding wheel to rotate;

[0011] A plurality of swing arms are sequentially distributed, the swing arms are rotatably arranged on the frame of the embroidery machine, and a thread pressing wheel is arranged on the swing arms;

[0012] A swing arm mechanism is slidably arranged on the frame, and the translation mechanism drives the swing arm mechanism to translate, so that the swing arm mechanism corresponds to each swing arm in turn, and the swing arm mechanism drives a corresponding swing arm to rotate, so that the corresponding wire pressing wheel is pressed tightly on the surface of the wire feeding wheel;

[0013] The embroidery thread of the embroidery machine first passes between the thread feeding wheel and the thread pressing wheel, and then passes through the corresponding embroidery needle. The specific operation of the power mobile active thread feeding system of this scheme is as follows. The following describes the working process of a certain embroidery needle of the head of the embroidery machine as an example.

[0014] When the needle bar frame is translated to make the embroidery needle in the working position, the translation mechanism synchronously drives the swing arm mechanism to translate, and translates the swing arm mechanism to the swing arm corresponding to the embroidery needle; then, the swing arm mechanism drives a corresponding swing arm to rotate, so that the corresponding thread pressing wheel is pressed against the surface of the thread feeding wheel, thereby pressing the embroidery thread corresponding to the embroidery needle between the thread feeding wheel and the thread pressing wheel; then, the thread feeding wheel is driven to rotate by the rotating mechanism to actively output the embroidery thread, and the length of the embroidery thread output each time is controlled by the rotation angle of the thread feeding wheel, and the length of the embroidery thread output each time is consistent with a corresponding stitch length in the embroidery process; in this way, the active thread feeding method is adopted to actively provide embroidery thread with a length consistent with the stitch length for each needle in the embroidery process, so that the embroidery thread will not pull the fabric, and ensure that the embroidery thread of the embroidery pattern is dense and not loose, thereby improving the quality of the embroidery, and effectively solving the problems of low manual adjustment efficiency, poor consistency of embroidery thread tightness adjustment, and inability to ensure the quality of the embroidery in the prior art embroidery machine using a thread presser to manually adjust the tightness of the embroidery thread. At the same time, the powered mobile active thread feeding system of the present invention adopts an active thread feeding method to actively provide embroidery thread for each stitch in the embroidery process, so there is no need to manually adjust the tightness of the embroidery thread. It can well adapt to the use requirements of the current multi-station embroidery machine and the production rhythm of the current multi-station embroidery machine.

[0015] On the other hand, the needle bar frame of the existing embroidery machine is generally equipped with a row of embroidery needles. The embroidery machine drives the needle bar frame to move horizontally through the embroidery machine color change system to realize the operation of different embroidery needles on the needle bar frame (different embroidery needles correspond to different color embroidery threads); while the swing arm mechanism of this scheme is driven to move horizontally through the translation mechanism, so that the swing arm mechanism corresponds to each swing arm in turn; based on this, when any embroidery needle in each head of the embroidery machine moves horizontally and changes color, the swing arm mechanism can be synchronously driven to move horizontally through the translation mechanism, and the swing arm mechanism is translated to the swing arm corresponding to the embroidery needle; then, the swing arm mechanism drives the corresponding swing arm to rotate, so that the corresponding thread pressing wheel is pressed on the surface of the thread feeding wheel, thereby pressing the embroidery thread corresponding to the embroidery needle between the thread feeding wheel and the thread pressing wheel; then, the thread feeding wheel is driven to rotate through the rotating mechanism to actively output the embroidery thread. Therefore, the thread feeding unit of this scheme only needs one swing arm mechanism, and there is no need for each swing arm to correspond to a swing arm mechanism, which can effectively reduce the number of swing arm mechanisms, thereby reducing the manufacturing cost.

[0016] Preferably, the elastic member provides elastic force to drive the swing arm to rotate, so that the thread pressing wheel is separated from the thread feeding wheel. In this way, the swing arms other than the one corresponding to the swing arm mechanism will rotate under the action of the corresponding elastic member, so that the thread pressing wheel is separated from the thread feeding wheel; based on this, in the process of the rotating mechanism driving the thread feeding wheel to rotate, it can be ensured that only the embroidery thread between the thread pressing wheel and the thread feeding wheel on the swing arm corresponding to the swing arm mechanism is actively output (the swing arm mechanism drives the corresponding swing arm to rotate, so that the corresponding thread pressing wheel is pressed against the surface of the thread feeding wheel); and the embroidery thread between the thread pressing wheel and the thread feeding wheel on the remaining swing arms is not actively output.

[0017] Preferably, the elastic member is a torsion spring, a tension spring, a compression spring, an elastic sheet, or a rubber band.

[0018] Preferably, the wire feeding unit further comprises a bracket connected to the frame, and the wire feeding wheel and the swing arm are both arranged on the bracket. In this way, the wire feeding wheel, the swing arm and the wire pressing wheel of the wire feeding unit can be installed on the frame together through the bracket, which is convenient for actual installation operation.

[0019] Preferably, the swing arm mechanism is arranged at the rear side of the bracket. In this solution, the swing arm mechanism is shielded at the rear side of the bracket, which is beneficial to improving the appearance effect on the one hand, and can also prevent operators or other objects from contacting the swing arm mechanism on the other hand.

[0020] Preferably, the swing arm is located above the wire feeding wheel, and the swing arm mechanism is arranged below the swing arm, which is conducive to the arrangement of the swing arm and the swing arm mechanism.

[0021] Preferably, the swing arm is located below the wire feeding wheel, and when the swing arm mechanism is separated from the swing arm, the wire pressing wheel on the swing arm will be separated from the wire feeding wheel under the action of its own weight. When the swing arm is arranged in this way, after the swing arm mechanism is separated from the swing arm, the swing arm will rotate downward and separate from the wire feeding wheel under the action of its own weight, so that the corresponding embroidery thread is not actively output.

[0022] Preferably, the frame is provided with a slide rail, a slide seat is slidably connected to the slide rail, and the swing arm mechanism is installed on the slide seat. In this way, it is ensured that the swing arm mechanism can smoothly slide along the slide rail.

[0023] Preferably, there are multiple wire feeding units, and the swing arm mechanisms of the wire feeding units are connected together through a connecting piece, and the wire feeding units share a translation mechanism. In this way, only one translation mechanism is needed to drive the swing arm mechanisms of the wire feeding units to translate synchronously, which can effectively reduce the number of translation mechanisms and further reduce the manufacturing cost.

[0024] Preferably, there are multiple wire feeding units, and the translation mechanism corresponds to each wire feeding unit one by one, driving the driving swing arm mechanism of the corresponding wire feeding unit to translate. In this way, it is convenient to independently layout and apply each wire feeding unit and the translation mechanism.

[0025] Preferably, there are multiple wire feeding units, the wire feeding wheels of each wire feeding unit are coaxially distributed, the rotating shafts of the wire feeding wheels of each wire feeding unit are connected as one, and each wire feeding unit shares a rotating mechanism, and the wire feeding wheel of one of the wire feeding units rotates in the rotating mechanism. In this way, only one rotating mechanism is needed to drive the wire feeding wheels of each wire feeding unit to rotate synchronously, which can effectively reduce the number of rotating mechanisms and further reduce the manufacturing cost.

[0026] Preferably, there are multiple wire feeding units, and the rotating mechanism corresponds to each wire feeding unit one by one, driving the wire feeding wheel of the corresponding wire feeding unit to rotate. In this way, it is convenient to independently layout and apply each wire feeding unit and the rotating mechanism.

[0027] Preferably, the wire feeding unit further includes a wire groove, which is V-shaped, and corresponds to the swing arm one by one. The wire groove is located above the wire feeding wheel, and the embroidery thread passes through the wire groove from top to bottom. In this way, the embroidery thread can be guided and limited by the wire groove to ensure that the embroidery thread passes between the wire feeding wheel and the wire pressing wheel. In addition, when the V-shaped wire groove structure is used to limit the embroidery thread, the embroidery thread can enter the bottom of the wire groove through the notch of the wire groove, which facilitates the cooperation between the embroidery thread and the wire groove.

[0028] Preferably, the swing arm mechanism is a pneumatic cylinder, a hydraulic cylinder, an electric cylinder, an electric push rod, or a push-pull electromagnet. In this way, the swing arm is driven to rotate by the pneumatic cylinder, a hydraulic cylinder, an electric cylinder, an electric push rod, or a push-pull electromagnet, so that the wire pressing wheel is pressed against the surface of the wire feeding wheel, and the structure is simple and easy to operate.

[0029] Preferably, the swing arm mechanism comprises an eccentric wheel that can be connected to the swing arm and a swing arm motor that drives the eccentric wheel to rotate. The swing arm motor drives the eccentric wheel to rotate, and the eccentric wheel abuts against the swing arm, thereby driving the swing arm to rotate, so that the corresponding wire pressing wheel is pressed against the surface of the wire feeding wheel.

[0030] An embroidery machine comprises a powered mobile active thread feeding system.

[0031] The beneficial effects of the utility model are:

[0032] Firstly, an active thread feeding method is adopted to actively provide embroidery thread of the same length as the needle distance for each stitch during the embroidery process, so that the embroidery thread will not pull the fabric, and the embroidery thread of the embroidery pattern is guaranteed to be dense and not loose, thereby improving the quality of the embroidery, and effectively solving the problems of low manual adjustment efficiency, poor consistency of embroidery thread tightness adjustment, and failure to ensure embroidery quality in the prior art embroidery machine using a thread presser to manually adjust the tightness of the embroidery thread.

[0033] Secondly, it adopts active thread feeding mode to actively provide embroidery thread for each stitch in the embroidery process, so there is no need to manually adjust the tightness of the embroidery thread. It can well adapt to the use requirements of the current multi-station embroidery machine and the production rhythm of the current multi-station embroidery machine.

[0034] Thirdly, the wire feeding unit only needs one swing arm mechanism, and there is no need for each swing arm to correspond to a swing arm mechanism, which can effectively reduce the number of swing arm mechanisms and thus reduce the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a three-dimensional partial structural schematic diagram of the power mobile active wire feeding system of the utility model.

[0036] Figure 2 It is a partial side view of the power movable active wire feeding system of the utility model.

[0037] Figure 3 It is a partial side view of an implementation mode of the power movable active wire feeding system of the utility model.

[0038] Figure 4 The utility model is a partial structural schematic diagram of the power movable active thread feeding system applied to an embroidery machine.

[0039] In the figure:

[0040] Rack 1;

[0041] Rotating mechanism 2, rotating motor 2.1, wire feeding transmission mechanism 2.2;

[0042] Translation mechanism 3, translation motor 3.1, lead screw 3.2;

[0043] Wire feeding unit 4, wire feeding wheel 4.1, swing arm 4.2, wire pressing wheel 4.3, bracket 4.4, wire guide groove 4.5, swing arm mechanism 4.6, telescopic rod 4.7;

[0044] Slide rail 5;

[0045] Embroidery thread 6;

[0046] Needle bar holder 7. DETAILED DESCRIPTION

[0047] Specific embodiment 1, as Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a powered mobile active wire feeding system comprises a wire feeding unit 4, a rotating mechanism 2 and a translation mechanism 3. The wire feeding unit 4 comprises a wire feeding wheel 4.1, a plurality of swing arms 4.2 and a swing arm mechanism 4.6 which are sequentially distributed. The wire feeding wheel 4.1 is rotatably arranged on the frame 1 of the embroidery machine. The rotating mechanism 2 drives the wire feeding wheel 4.1 to rotate. The rotating mechanism 2 comprises a rotating motor 2.1. Each swing arm 4.2 is arranged side by side along the axial direction of the wire feeding wheel 4.1. Each swing arm 4.2 is rotatably arranged on the frame of the embroidery machine. A thread pressing wheel 4.3 is arranged on the swing arm 4.2. The swing arm mechanism 4.6 is slidably arranged on the frame (the "powered mobile" in the powered mobile active wire feeding system in the text means that the swing arm mechanism is slidably arranged on the frame). The translation mechanism 3 drives the swing arm mechanism 4.6 to translate so that the swing arm mechanism 4.6 corresponds to each swing arm 4.2 in sequence. The swing arm mechanism 4.6 drives a corresponding swing arm 4.2 to rotate so that the corresponding wire pressing wheel 4.3 is pressed tightly against the surface of the wire feeding wheel 4.1.

[0048] The embroidery thread 6 of the embroidery machine is located between the corresponding thread feeding wheel 4.1 and the thread pressing wheel 4.3 (an embroidery thread 6 is arranged between each thread feeding wheel 4.1 and the thread pressing wheel 4.3), and the embroidery thread 6 first passes between the thread feeding wheel 4.1 and the thread pressing wheel 4.3 (the embroidery thread 6 can be pressed between the thread feeding wheel 4.1 and the thread pressing wheel 4.3), and then passes through the corresponding embroidery needle.

[0049] The specific operation of the power movable active thread feeding system of this embodiment is as follows (among the embroidery needles on the same needle bar frame 7 of the embroidery machine, when one of the embroidery needles is working, the other embroidery needles are not working). The following description takes the working process of a certain embroidery needle on the head of the embroidery machine as an example.

[0050] When the needle bar frame translation mechanism drives the needle bar frame 7 to translate and makes the embroidery needle in the working position, the translation mechanism 3 synchronously drives the swing arm mechanism 4.6 to translate and translates the swing arm mechanism 4.6 to the swing arm 4.2 corresponding to the embroidery needle; then, the swing arm mechanism 4.6 drives the corresponding swing arm 4.2 to rotate so that the corresponding thread pressing wheel 4.3 is pressed against the surface of the thread feeding wheel 4.1, thereby pressing the embroidery thread 6 corresponding to the embroidery needle between the thread feeding wheel 4.1 and the thread pressing wheel 4.3; then, the thread feeding wheel 4.1 is driven to rotate by the rotating mechanism 2 to actively output the embroidery thread 6, and the length of the embroidery thread 6 output each time is controlled by the rotation angle of the thread feeding wheel 4.1, and the length of the embroidery thread 6 output each time is consistent with a corresponding stitch length during the embroidery process. In this way, the active thread feeding method is adopted to actively provide embroidery thread 6 with the same length as the needle distance for each needle during the embroidery process, so that the embroidery thread 6 will not pull the fabric, and ensure that the embroidery thread 6 of the embroidery pattern is dense and not loose, thereby improving the quality of the embroidery, and effectively solving the problems of low manual adjustment efficiency, poor consistency of adjustment of the tightness of the embroidery thread 6, and the inability to ensure the quality of the embroidery in the existing technology. At the same time, the power mobile active thread feeding system of this embodiment adopts the active thread feeding method to actively provide embroidery thread 6 for each needle in the embroidery process, so there is no need to manually adjust the tightness of the embroidery thread 6, which can well adapt to the use requirements of the current multi-station embroidery machine and the production rhythm of the current multi-station embroidery machine.

[0051] On the other hand, a row of embroidery needles are generally arranged on the needle bar frame 7 of the existing embroidery machine. The embroidery machine drives the needle bar frame 7 to move in a translational manner through the embroidery machine color changing system to realize the operation of different embroidery needles on the needle bar frame 7 (different embroidery needles correspond to embroidery threads 6 of different colors); and the swing arm mechanism 4.6 of the present embodiment is driven to move in a translational manner by the translation mechanism 3, so that the swing arm mechanism 4.6 corresponds to each swing arm 4.2 in turn; based on this, when any embroidery needle in each head of the embroidery machine moves in a translational manner and changes color, the swing arm mechanism 4.6 can be synchronously driven to move in a translational manner by the translation mechanism 3, and the swing arm mechanism 4.6 can be translated to the swing arm 4.2 corresponding to the embroidery needle; then, the swing arm mechanism 4.6 drives a corresponding swing arm 4.2 to rotate, so that the corresponding thread pressing wheel 4.3 is pressed against the surface of the thread feeding wheel 4.1, thereby pressing the embroidery thread 6 corresponding to the embroidery needle between the thread feeding wheel 4.1 and the thread pressing wheel 4.3; then, the thread feeding wheel 4.1 is driven to rotate by the rotating mechanism 2, and the embroidery thread 6 is actively output. Therefore, the wire feeding unit 4 of this embodiment only needs one swing arm mechanism 4.6, and there is no need for each swing arm 4.2 to correspond to a swing arm mechanism 4.6, which can effectively reduce the number of swing arm mechanisms 4.6, thereby reducing the manufacturing cost.

[0052] Specific embodiment 2, as Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, a powered mobile active thread feeding system includes a thread feeding unit 4, a rotating mechanism 2 and a translation mechanism 3. The powered mobile active thread feeding system is applied to an embroidery machine. The embroidery machine includes a plurality of machine heads. The machine head includes a needle bar frame 7. The needle bar frame 7 moves along the guide rails of the embroidery machine, and the guide rails are horizontally distributed. The embroidery machine is provided with a needle bar frame translation mechanism. The needle bar frame translation mechanism drives the needle bar frame 7 to move along the guide rails. The needle bar frame 7 and the needle bar frame translation mechanism are both prior arts, so this application does not elaborate on conventional technical means such as the specific method and structure of the needle bar frame 7 and the needle bar frame translation mechanism.

[0053] The wire feeding unit 4 includes a wire feeding wheel 4.1, an elastic member, a plurality of swing arms 4.2 and a swing arm mechanism 4.6 which are sequentially distributed. The wire feeding wheel 4.1 is rotatably arranged on the frame 1 of the embroidery machine. In this embodiment, the axial direction of the wire feeding wheel is parallel to the moving direction of the needle bar frame 7. The rotating mechanism 2 drives the wire feeding wheel 4.1 to rotate. The rotating mechanism 2 includes a rotating motor 2.1.

[0054] Each swing arm 4.2 is arranged side by side along the axial direction of the wire feeding wheel 4.1. Each swing arm 4.2 is rotatably arranged on the frame of the embroidery machine. The rotating shaft of the swing arm is parallel to the rotating shaft of the wire feeding wheel. In this embodiment, each swing arm 4.2 shares a rotating shaft. Of course, it should be noted that each swing arm 4.2 can also be rotatably arranged on the frame of the embroidery machine through an independent rotating shaft.

[0055] A wire pressing wheel 4.3 is provided on the swing arm 4.2. The wire pressing wheel 4.3 is rotatably arranged on the swing arm 4.2, and the rotating shaft of the wire pressing wheel 4.3 is parallel to the rotating shaft of the wire feeding wheel 4.1. In this embodiment, the wire pressing wheel 4.3 is distributed on the front side of the wire feeding wheel 4.1. Of course, it should be noted that the wire pressing wheel 4.3 can also be distributed on the rear side of the wire feeding wheel 4.1.

[0056] The swing arm mechanism 4.6 is slidably arranged on the frame 1, and specifically, a slide rail 5 is arranged on the frame. A slide seat is slidably connected to the slide rail, and the swing arm mechanism 4.6 is installed on the slide seat. The sliding direction of the swing arm mechanism 4.6 is parallel to the axial direction of the wire feeding wheel 4.1. The translation mechanism 3 drives the swing arm mechanism 4.6 to translate, so that the swing arm mechanism 4.6 corresponds to each swing arm 4.2 in turn. The swing arm mechanism 4.6 drives a corresponding swing arm 4.2 to rotate, so that the corresponding wire pressing wheel 4.3 is pressed tightly on the surface of the wire feeding wheel 4.1.

[0057] In one implementation of this embodiment, the swing arm mechanism 4.6 is a pneumatic cylinder, a hydraulic cylinder, an electric cylinder, an electric push rod, or a push-pull electromagnet. The telescopic rod 4.7 of the pneumatic cylinder, the hydraulic cylinder, the electric cylinder, the electric push rod, or the push-pull electromagnet constituting the swing arm mechanism 4.6 faces the swing arm 4.2. When the swing arm mechanism 4.6 corresponds to one of the swing arms 4.2, the telescopic rod 4.7 of the pneumatic cylinder, the hydraulic cylinder, the electric cylinder, the electric push rod, or the push-pull electromagnet extends out and abuts against the swing arm 4.2, thereby driving the swing arm 4.2 to rotate, so that the corresponding wire pressing wheel 4.3 is pressed against the surface of the wire feeding wheel 4.1.

[0058] In another implementation of this embodiment, the swing arm mechanism 4.6 includes an eccentric wheel that can be connected to the swing arm and a swing arm motor that drives the eccentric wheel to rotate. When the swing arm mechanism 4.6 corresponds to one of the swing arms 4.2, the swing arm motor drives the eccentric wheel to rotate in the forward direction, the eccentric wheel abuts against the swing arm, and then drives the swing arm to rotate, so that the corresponding wire pressing wheel is pressed against the surface of the wire feeding wheel.

[0059] Of course, it should be noted that the swing arm mechanism can also be other swing arm mechanisms on the market.

[0060] Each swing arm 4.2 corresponds to one or more elastic members. In this embodiment, the swing arm 4.2 corresponds to the elastic member one by one. The elastic member provides elastic force to drive the swing arm 4.2 to rotate so that the wire pressing wheel 4.3 is separated from the wire feeding wheel 4.1. The elastic member is a torsion spring, a tension spring, a compression spring, an elastic sheet, or a rubber band.

[0061] There are one or more wire feeding units 4, and each wire feeding unit 4 corresponds to a machine head. In this embodiment, the wire feeding unit 4 corresponds to the machine head of the embroidery machine one by one. Of course, it should be noted that in actual application, the wire feeding unit 4 of this embodiment can also be applied to a part of the machine heads of the embroidery machine.

[0062] In this embodiment, the swing arm 4.2 in the same thread feeding unit 4 corresponds one-to-one with the embroidery needle on the needle bar frame 7 of the corresponding machine head, and the thread pressing wheel 4.3 in the same thread feeding unit 4 corresponds one-to-one with the embroidery needle on the needle bar frame 7 of the corresponding machine head.

[0063] The embroidery thread 6 of the embroidery machine is located between the corresponding thread feeding wheel 4.1 and the thread pressing wheel 4.3 (an embroidery thread 6 is arranged between each thread feeding wheel 4.1 and the thread pressing wheel 4.3), and the embroidery thread 6 first passes between the thread feeding wheel 4.1 and the thread pressing wheel 4.3 (the embroidery thread 6 can be pressed between the thread feeding wheel 4.1 and the thread pressing wheel 4.3), and then passes through the corresponding embroidery needle.

[0064] The specific operation of the power movable active thread feeding system of this embodiment is as follows (among the embroidery needles on the same needle bar frame 7 of the embroidery machine, when one of the embroidery needles is working, the other embroidery needles are not working). The following description takes the working process of a certain embroidery needle on the head of the embroidery machine as an example.

[0065] When the needle bar frame translation mechanism drives the needle bar frame 7 to translate and makes the embroidery needle in the working position, the translation mechanism 3 synchronously drives the swing arm mechanism 4.6 to translate and translates the swing arm mechanism 4.6 to the swing arm 4.2 corresponding to the embroidery needle; then, the swing arm mechanism 4.6 drives a corresponding swing arm 4.2 to rotate so that the corresponding thread pressing wheel 4.3 is pressed against the surface of the thread feeding wheel 4.1, thereby pressing the embroidery thread 6 corresponding to the embroidery needle between the thread feeding wheel 4.1 and the thread pressing wheel 4.3; then, during the working process of the embroidery needle, the thread feeding wheel 4.1 is driven to rotate by the rotating mechanism 2 to actively output the embroidery thread 6, and the length of the embroidery thread 6 output each time is controlled by the rotation angle of the thread feeding wheel 4.1, and the length of the embroidery thread 6 output at one time is consistent with a corresponding stitch length during the embroidery process. In this way, an active thread feeding method is adopted to actively provide embroidery thread 6 with a length consistent with the stitch length for each stitch during the embroidery process, so that the embroidery thread 6 will not pull the fabric, and the embroidery thread 6 of the embroidery pattern is guaranteed to be dense and not loose, thereby improving the quality of the embroidery, and effectively solving the problems of low manual adjustment efficiency, poor consistency in adjustment of the tightness of the embroidery thread 6, and the inability to ensure the quality of the embroidery, which exist in the prior art embroidery machines.

[0066] When the embroidery needle stops working, the telescopic rod 4.7 of the air cylinder, oil cylinder, electric cylinder, electric push rod or push-pull electromagnet constituting the swing arm mechanism 4.6 shrinks, or the swing arm motor constituting the swing arm mechanism 3 drives the eccentric wheel to rotate in the opposite direction, and the swing arm 4.2 rotates under the action of the elastic member to separate the thread pressing wheel 4.3 from the thread feeding wheel 4.1. After that, during the process of the rotating mechanism 2 driving the thread feeding wheel 4.1 to rotate, the embroidery thread 6 corresponding to the thread pressing wheel 4.3 is not output (the thread pressing wheel 4.3 is separated from the thread feeding wheel 4.1, and the embroidery thread 6 between them will not be output by the rotating thread feeding wheel 4.1). The remaining swing arms 4.2 except the one swing arm 4.2 corresponding to the swing arm mechanism 4.6 will rotate under the action of the corresponding elastic member to separate the corresponding thread pressing wheel 4.3 from the thread feeding wheel 4.1.

[0067] The powered mobile active thread feeding system of the present embodiment adopts an active thread feeding method to actively provide embroidery thread 6 for each stitch in the embroidery process, so there is no need to manually adjust the tightness of the embroidery thread 6. It can well adapt to the use requirements of the current multi-station embroidery machine and the production rhythm of the current multi-station embroidery machine.

[0068] On the other hand, a row of embroidery needles are generally arranged on the needle bar frame 7 of the existing embroidery machine. The embroidery machine drives the needle bar frame 7 to move in a translational manner through the embroidery machine color changing system to realize the operation of different embroidery needles on the needle bar frame 7 (different embroidery needles correspond to embroidery threads 6 of different colors); and the swing arm mechanism 4.6 of the present embodiment is driven to move in a translational manner by the translation mechanism 3, so that the swing arm mechanism 4.6 corresponds to each swing arm 4.2 in turn; based on this, when any embroidery needle in each head of the embroidery machine moves in a translational manner and changes color, the swing arm mechanism 4.6 can be synchronously driven to move in a translational manner by the translation mechanism 3, and the swing arm mechanism 4.6 can be translated to the swing arm 4.2 corresponding to the embroidery needle; then, the swing arm mechanism 4.6 drives a corresponding swing arm 4.2 to rotate, so that the corresponding thread pressing wheel 4.3 is pressed against the surface of the thread feeding wheel 4.1, thereby pressing the embroidery thread 6 corresponding to the embroidery needle between the thread feeding wheel 4.1 and the thread pressing wheel 4.3; then, the thread feeding wheel 4.1 is driven to rotate by the rotating mechanism 2, and the embroidery thread 6 is actively output. Therefore, the wire feeding unit 4 of this embodiment only needs one swing arm mechanism 4.6, and there is no need for each swing arm 4.2 to correspond to a swing arm mechanism 4.6, which can effectively reduce the number of swing arm mechanisms 4.6, thereby reducing the manufacturing cost.

[0069] In this embodiment, the swing arm 4.2 is located above the wire feeding wheel 4.1, and the swing arm mechanism 4.6 is arranged below the swing arm 4.2. The telescopic rod 4.7 of the air cylinder, oil cylinder, electric cylinder, electric push rod or push-pull electromagnet constituting the swing arm mechanism 4.6 is arranged upward. The swing arm mechanism and the wire pressing wheel are located on opposite sides of the rotating shaft of the swing arm. The elastic member provides elastic force to drive the swing arm to rotate upward so that the wire pressing wheel is separated from the wire feeding wheel.

[0070] Of course, it should be noted that the swing arm mechanism 4.6 can also be arranged above the swing arm 4.2. The swing arm mechanism and the crimping wheel are located on the same side of the rotating shaft of the swing arm.

[0071] The wire feeding unit 4 also includes a swing arm limiter, which is directly or indirectly arranged on the frame and is used to limit the swing angle of the swing arm 4.2. In this embodiment, the swing arm limiter is arranged on the bracket 4.4, and when the swing arm 4.2 rotates under the action of the elastic member and abuts against the swing arm limiter, the wire pressing wheel 4.3 is separated from the wire feeding wheel 4.1. The swing arm limiter in the same wire feeding unit 4 corresponds to the swing arm 4.2 one by one, or the swing arm limiter in the same wire feeding unit 4 is composed of the same limit rod, and the limit rod is parallel to the axis of the wire feeding wheel 4.1.

[0072] The translation mechanism 3 is an electric cylinder or an electric push rod or a linear module. In this embodiment, the translation mechanism 3 includes a translation motor 3.1, a screw rod 3.2 and a nut matched with the screw rod. The screw rod is rotatably arranged on the frame of the embroidery machine, and the screw rod is parallel to the sliding direction of the swing arm mechanism 4.6. The translation motor drives the screw rod to rotate. The nut is connected to the swing arm mechanism 4.6 through a connecting piece. In this way, the swing arm mechanism 4.6 can be driven by the translation mechanism 3 to move synchronously with the needle bar frame 7. Of course, it should be noted that the translation mechanism 3 can also be other translation mechanisms 3 on the market.

[0073] In one implementation of this embodiment, the rotating mechanism 2 is a rotating motor 2.1, and the rotating shaft of the rotating motor 2.1 is directly connected to the rotating shaft of the wire feeding wheel 4.1.

[0074] In another implementation of this embodiment, the rotating mechanism 2 includes a rotating motor 2.1 and a wire feeding transmission mechanism 2.2. The wire feeding transmission mechanism connects the rotating shaft of the rotating motor 2.1 and the rotating shaft of the wire feeding wheel 4.1, and the rotating motor 2.1 drives the wire feeding wheel 4.1 to rotate through the wire feeding transmission mechanism. The wire feeding transmission mechanism is a pulley transmission mechanism, a sprocket transmission mechanism, a gear transmission mechanism, or a friction wheel transmission mechanism.

[0075] Specific embodiment 3: The rest of the structure of this embodiment refers to specific embodiment 2, except that:

[0076] In this embodiment, the wire feeding unit 4 does not need to be provided with an elastic member, and the elastic member in the wire feeding unit 4 can be omitted. Specifically,

[0077] The swing arm 4.2 is located below the wire feeding wheel 4.1 (not shown in the figure). When the swing arm mechanism 4.6 is separated from the swing arm 4.2, the wire pressing wheel 4.3 on the swing arm 4.2 will be separated from the wire feeding wheel 4.1 under the action of its own weight. Specifically, "the center of gravity of the assembly consisting of the swing arm 4.2 and the wire pressing wheel 4.3 on the swing arm 4.2" and "the wire pressing wheel 4.3 on the swing arm 4.2" are located on the same side of the rotating shaft of the swing arm 4.2. The swing arm 4.2 is arranged in this way, and during the contraction of the telescopic rod 4.7 of the air cylinder or oil cylinder or electric cylinder or electric push rod or push-pull electromagnet constituting the swing arm mechanism 4.6, the swing arm 4.2 will rotate downward under the action of the deadweight of the wire pressing wheel 4.3, so that the wire pressing wheel 4.3 rotates downward and separates from the wire feeding wheel 4.1, so that the corresponding embroidery thread 6 is not actively output. In this way, the elastic member in the wire feeding unit 4 can be omitted.

[0078] Of course, it should be noted that in the process of contraction of the telescopic rod 4.7 of the air cylinder or oil cylinder or electric cylinder or electric push rod or push-pull electromagnet constituting the swing arm mechanism 4.6, in order to further improve the separation efficiency of the wire pressing wheel 4.3 and the wire feeding wheel 4.1 and ensure that the wire pressing wheel 4.3 and the wire feeding wheel 4.1 are separated, the elastic member in the specific embodiment 2 can also be arranged in this embodiment to improve the separation efficiency of the wire pressing wheel 4.3 and the wire feeding wheel 4.1 and ensure that the wire pressing wheel 4.3 and the wire feeding wheel 4.1 are separated.

[0079] Specific embodiment 4: The rest of the structure of this embodiment refers to specific embodiment 2 or specific embodiment 3, the difference is that:

[0080] like Figure 1 , Figure 2 As shown, the wire feeding unit 4 also includes a bracket 4.4. The bracket 4.4 is connected to the frame 1. For example, the bracket 4.4 is connected to the frame by bolts or welding. The wire feeding wheel 4.1 and the swing arm 4.2 of the wire feeding unit 4 are both rotatably arranged on the bracket 4.4. In this way, the wire feeding wheel 4.1, the swing arm 4.2 and the wire pressing wheel 4.3 of the wire feeding unit 4 can be installed on the frame together through the bracket 4.4, which is convenient for actual installation operation.

[0081] Further, such as Figure 1 , Figure 2 As shown, the swing arm mechanism 4.6 is arranged at the rear side of the bracket 4.4. In this solution, the swing arm mechanism 4.6 is shielded at the rear side of the bracket 4.4, which is beneficial to improving the appearance effect on the one hand, and can also prevent operators or other objects from contacting the swing arm mechanism 4.6 on the other hand. Of course, it should be noted that the swing arm mechanism 4.6 can also be arranged at the front side of the bracket 4.4 as needed.

[0082] Further, such as Figure 1 , Figure 2 , Figure 4 As shown, the wire feeding unit 4 also includes a wire groove 4.5, which is V-shaped. The wire groove 4.5 corresponds to the swing arm 4.2 one by one. The wire groove 4.5 is located above the wire feeding wheel 4.1, and the embroidery thread 6 passes through the wire groove 4.5 from top to bottom. In this embodiment, the wire groove 4.5 is set on the bracket 4.4. In this way, the embroidery thread 6 can be guided and limited by the wire groove 4.5 to ensure that the embroidery thread 6 passes between the wire feeding wheel 4.1 and the wire pressing wheel 4.3. In addition, when the V-shaped wire groove 4.5 structure is used to limit the embroidery thread 6, the embroidery thread 6 can enter the bottom of the wire groove 4.5 through the notch of the wire groove 4.5, which facilitates the cooperation between the embroidery thread 6 and the wire groove 4.5.

[0083] In this embodiment, there are multiple wire feeding units 4.

[0084] In one implementation of this embodiment, Figure 1 , Figure 2 , Figure 3 As shown, the swing arm mechanisms 4.6 of each wire feeding unit 4 are connected together by a connecting piece. Each wire feeding unit 4 shares a translation mechanism 3. In this way, only one translation mechanism 3 is needed to drive the swing arm mechanisms 4.6 of each wire feeding unit 4 to translate synchronously, which can effectively reduce the number of translation mechanisms 3 and further reduce the manufacturing cost.

[0085] In another implementation of this embodiment, the translation mechanism 3 corresponds to the wire feeding unit 4. The translation mechanism 3 drives the driving swing arm mechanism 4.6 of the corresponding wire feeding unit 4 to translate. In this way, the independent layout application of each wire feeding unit 4 and the translation mechanism 3 is convenient.

[0086] In the third implementation of this embodiment, Figure 3 As shown, the wire feeding wheels 4.1 of each wire feeding unit 4 are coaxially distributed, and the rotating shafts of the wire feeding wheels 4.1 of each wire feeding unit 4 are connected as one. Each wire feeding unit 4 shares a rotating mechanism 2, and the wire feeding wheels 4.1 of one wire feeding unit 4 in the rotating mechanism 2 rotates. In this way, only one rotating mechanism 2 is needed to drive the wire feeding wheels 4.1 of each wire feeding unit 4 to rotate synchronously, which can effectively reduce the number of rotating mechanisms 2 and further reduce the manufacturing cost.

[0087] In the fourth implementation of this embodiment, the rotating mechanism 2 corresponds to the wire feeding unit 4 one by one, and the rotating mechanism 2 drives the wire feeding wheel 4.1 of the corresponding wire feeding unit 4 to rotate. In this way, the independent layout application of each wire feeding unit 4 and the rotating mechanism 2 is convenient.

[0088] Specific embodiment 5, an embroidery machine, including a powered movable active thread feeding system. The specific structure of the powered movable active thread feeding system refers to any one of the specific embodiments from specific embodiment 1 to specific embodiment 4.

[0089] The above description is only a preferred embodiment of the present invention and does not constitute any limitation to the present invention. Any simple modification, change and equivalent transformation made to the above embodiments according to the technical essence of the present invention shall still fall within the protection scope of the technical solution of the present invention.

Claims

1. A powered mobile active wire feeding system, characterized in that: It comprises a rotating mechanism (2), a translation mechanism (3) and a wire feeding unit (4), wherein the wire feeding unit comprises: Rotating a thread feeding wheel (4.1) disposed on a frame (1) of the embroidery machine, and the rotating mechanism (2) drives the thread feeding wheel to rotate; A plurality of swing arms (4.2) distributed in sequence, the swing arms being rotatably arranged on a frame of the embroidery machine, and having a thread pressing wheel (4.3) arranged on the swing arms; A swing arm mechanism (4.6) is slidably arranged on the frame, and the translation mechanism (3) drives the swing arm mechanism to translate so that the swing arm mechanism corresponds to each swing arm in sequence, and the swing arm mechanism (4.6) drives a corresponding swing arm (4.2) to rotate so that the corresponding wire pressing wheel is pressed tightly against the surface of the wire feeding wheel; The embroidery thread (6) of the embroidery machine first passes between the thread feeding wheel and the thread pressing wheel, and then passes through the corresponding embroidery needle.

2. The powered mobile active wire feeding system according to claim 1, characterized in that: The wire feeding unit (4) also includes an elastic member, which provides elastic force to drive the swing arm to rotate, so as to separate the wire pressing wheel from the wire feeding wheel.

3. The powered mobile active wire feeding system according to claim 2, characterized in that: The elastic member is a torsion spring, a tension spring, a compression spring, an elastic sheet or a rubber band.

4. The powered mobile active wire feeding system according to claim 1, 2 or 3, characterized in that: The wire feeding unit (4) further comprises a bracket (4.4) connected to the frame, and the wire feeding wheel and the swing arm are both arranged on the bracket.

5. The powered mobile active wire feeding system according to claim 4, characterized in that: The swing arm mechanism (4.6) is arranged on the rear side of the bracket.

6. The powered mobile active wire feeding system according to claim 1, 2 or 3, characterized in that: The swing arm (4.2) is located above the wire feeding wheel (4.1), and the swing arm mechanism (4.6) is arranged below the swing arm.

7. The powered mobile active wire feeding system according to claim 1, 2 or 3, characterized in that: The swing arm (4.2) is located below the wire feeding wheel (4.1), and when the swing arm mechanism (4.6) is separated from the swing arm (4.2), the wire pressing wheel (4.3) on the swing arm (4.2) is separated from the wire feeding wheel (4.1) under the action of its own weight.

8. The powered mobile active wire feeding system according to claim 1, 2 or 3, characterized in that: The frame is provided with a slide rail (5), a slide seat is slidably connected to the slide rail, and the swing arm mechanism (4.6) is installed on the slide seat.

9. The powered mobile active wire feeding system according to claim 1, 2 or 3, characterized in that: There are a plurality of wire feeding units (4), the swing arm mechanisms (4.6) of the wire feeding units (4) are connected together via a connecting piece, and the wire feeding units share a common translation mechanism.

10. The powered mobile active wire feeding system according to claim 1, 2 or 3, characterized in that: There are a plurality of wire feeding units (4), and the translation mechanism corresponds to the wire feeding units one by one, driving the driving swing arm mechanism of the corresponding wire feeding unit to translate.

11. The powered mobile active wire feeding system according to claim 1, 2 or 3, characterized in that: There are a plurality of wire feeding units (4), the wire feeding wheels (4.1) of each wire feeding unit are coaxially distributed, the rotating axes of the wire feeding wheels (4.1) of each wire feeding unit are connected as one, and each wire feeding unit shares a rotating mechanism (2), and the wire feeding wheel of one of the wire feeding units rotates in the rotating mechanism.

12. The powered mobile active wire feeding system according to claim 1, 2 or 3, characterized in that: There are a plurality of wire feeding units (4), and the rotating mechanism (2) corresponds to the wire feeding units one by one, driving the wire feeding wheels (4.1) of the corresponding wire feeding units to rotate.

13. The powered mobile active wire feeding system according to claim 1, 2 or 3, characterized in that: The wire feeding unit further comprises a wire groove (4.5), which is V-shaped, has a one-to-one correspondence with the swing arm, is located above the wire feeding wheel, and the embroidery thread passes through the wire groove from top to bottom.

14. The powered mobile active wire feeding system according to claim 1, 2 or 3, characterized in that: The swing arm mechanism (4.6) is an air cylinder, an oil cylinder, an electric cylinder, an electric push rod, or a push-pull electromagnet; or the swing arm mechanism (4.6) includes an eccentric wheel that can be abutted and connected to the swing arm, and a swing arm motor that drives the eccentric wheel to rotate.

15. An embroidery machine, characterized in that: A powered mobile active wire feeding system comprising any one of claims 1-14.

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