Pressure-adjustable automatic thread pressing equipment applied to embroidery machine and embroidery machine

Abstract

The utility model discloses pressure-adjustable automatic thread pressing equipment applied to an embroidery machine and the embroidery machine, and aims to provide the pressure-adjustable automatic thread pressing equipment which can automatically adjust the pressing force of embroidery threads as required, effectively improve the adjustment accuracy and consistency of the tightness of the embroidery threads, and improve the production efficiency. The pressure-adjustable type automatic thread pressing equipment applied to the embroidery machine and the embroidery machine are provided with the pressure-adjustable type automatic thread pressing equipment. The wire pressing device comprises a wire pressing unit which comprises a plurality of wire pressing assemblies distributed side by side, each wire pressing assembly comprises a wire pressing sheet, a wire pressing surface and an elastic element, and the wire pressing sheets abut against the wire pressing surfaces under the action of the elastic elements; the driving device slides along the arrangement direction of the wire pressing components and automatically regulates and controls the wire pressure; the driving device comprises a pushing and pressing part; and the translation mechanism drives the driving device to translate, so that the pushing and pressing part corresponds to each wire pressing assembly of the wire pressing unit in sequence, and the driving device compresses the elastic element of the corresponding wire pressing assembly by driving the pushing and pressing part to move, so as to adjust the pressing force between the corresponding wire pressing sheet and the wire pressing surface.

Description

Technical Field

[0001] The utility model relates to the field of embroidery machines, in particular to a pressure-adjustable automatic thread pressing device used in embroidery machines and the embroidery machine. Background Art

[0002] With the development of embroidery machines, the number of heads has continued to increase. Currently, multi-station embroidery machines feature dozens or even hundreds of heads, arranged in a row. Each head includes a needle bar holder, which holds a row of needles. The thread threading the needles in an embroidery machine must maintain the appropriate tension—neither too tight nor too loose. If the thread is too tight, it will pull the fabric loose during the embroidery process, even creating holes and affecting the quality of the embroidery. If the thread is too loose, the embroidery pattern will become 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. The thread presser includes a thread presser knob. The embroidery thread corresponding to the embroidery needle first passes through the corresponding thread presser and then passes through the corresponding embroidery needle. The current thread presser is adjusted by the operator manually rotating the thread presser knob 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 manual thread presser to manually adjust the tightness of the embroidery thread. Although it can solve the problem of embroidery thread tightness 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 the embroidery thread tightness adjustment, and the inability to guarantee the quality of the embroidery product; 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 traditional embroidery machines with fewer heads (3-6 heads). Traditional embroidery machines have fewer heads and fewer thread crimpers, and operators can 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 is simply unable to adapt to the production rhythm. Therefore, the current method of manually adjusting the tightness of the embroidery thread with a thread crimper is becoming increasingly unable to meet the usage needs of current multi-station embroidery machines. Utility Model Content

[0006] The purpose of the utility model is to provide an embroidery machine with adjustable pressure, which can automatically adjust the pressing force of the embroidery thread according to needs, effectively improve the accuracy and consistency of the tightness adjustment of each embroidery thread, thereby improving the quality of embroidery products, reducing labor costs, and adapting to the use requirements of current multi-station embroidery machines. Automatic thread pressing equipment and embroidery machines.

[0007] The technical solution of the utility model is:

[0008] A pressure-adjustable automatic thread pressing device for an embroidery machine, comprising:

[0009] The wire pressing unit includes a plurality of wire pressing components arranged side by side. The wire pressing components include a wire pressing piece, a wire pressing surface and an elastic element. The wire pressing piece is pressed against the wire pressing surface under the action of the elastic element.

[0010] A driving device for automatically regulating the line pressure, which slides along the arrangement direction of each line pressing assembly, and includes a pushing portion;

[0011] The translation mechanism drives the driving device to translate, so that the pushing part corresponds to each thread pressing component of the thread pressing unit in sequence. The driving device compresses the elastic element of the corresponding thread pressing component by driving the pushing part to move, thereby adjusting the pressing force between the corresponding thread pressing piece and the thread pressing surface. The specific operation of the pressure-adjustable automatic thread pressing device applied to the embroidery machine is as follows. The following describes the working process of a certain embroidery needle in the head of the embroidery machine as an example.

[0012] When the needle bar frame translates, placing the embroidery needle in the working position, the translation mechanism drives the driving device to translate, moving the pushing portion to the thread pressing assembly corresponding to the embroidery needle. The driving device then drives the pushing portion to compress the elastic element of the corresponding thread pressing assembly. The driving device can automatically drive and accurately control the movement of the pushing portion, thereby accurately controlling the compression of the elastic element, thereby accurately adjusting the pressing force between the thread pressing piece and the thread pressing surface. This effectively improves the accuracy and consistency of thread tension adjustment on the embroidery machine, thereby improving the quality of the embroidery product. At the same time, there is no need for manual adjustment of the thread tension, making it well suited to the needs and production rhythm of current multi-station embroidery machines and reducing labor costs.

[0013] 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 changing system to realize the operation of different embroidery needles on the needle bar frame (different embroidery needles correspond to different colored embroidery threads); and the present solution drives the driving device to move horizontally through the translation mechanism so that the pushing part corresponds to each thread pressing component of the thread pressing unit. Based on this, each thread pressing component of each thread pressing unit only needs one driving device for automatically adjusting the thread pressure at most, and there is no need for each thread pressing component to correspond to a driving device, which can effectively reduce the number of driving devices and thus reduce the production cost.

[0014] Preferably, a detection sensor is further included to detect the pressing force between the thread pressing piece and the thread pressing surface of each thread pressing assembly in the thread pressing unit. In this way, during the process of the driving device adjusting the pressing force between the thread pressing piece and the thread pressing surface, the pressing force between the thread pressing piece and the thread pressing surface can be detected in real time by the detection sensor. When the detection sensor detects that the pressing force between the thread pressing piece and the thread pressing surface reaches a set value, the driving device stops driving the pushing part, thereby accurately adjusting the pressing force between the thread pressing piece and the thread pressing surface to ensure the consistency of the tightness of each embroidery thread; effectively avoiding the problem of the processing precision of the elastic element affecting the adjustment accuracy and consistency of the embroidery thread tightness.

[0015] As a preference, it further includes a transverse track and a transverse slide that slides along the transverse track, the transverse track extending along the arrangement direction of each wire pressing assembly, the transverse slide being provided with a longitudinal track perpendicular to the transverse track, and the translation mechanism driving the transverse slide to move;

[0016] The drive device includes a longitudinal slide that slides along the longitudinal track and a power element mounted on the transverse slide. The power element drives the longitudinal slide to move, and the push portion is mounted on the longitudinal slide toward the wire pressing assembly. In this way, the translation mechanism can drive the drive device to move smoothly along the transverse track via the transverse slide, and the power element can drive the push portion to move smoothly along the longitudinal track via the longitudinal slide.

[0017] Preferably, the driving device further comprises a transmission mechanism, the transmission mechanism corresponds to the longitudinal slide one by one, there are one or more wire pressing units, each wire pressing unit corresponds to a longitudinal slide, and each longitudinal slide is provided with a pushing portion.

[0018] The transmission mechanism corresponds to the power element one by one, and the power element drives the corresponding longitudinal slide to move through the transmission mechanism; this facilitates the independent layout and application of each wire pressing unit and power element;

[0019] Alternatively, multiple transmission mechanisms share a power element, which drives each longitudinal slide to move synchronously through the transmission mechanism. In this way, there is no need for each wire pressing unit to correspond to a power element, which can effectively reduce the number of power elements and further reduce production costs.

[0020] Preferably, the transmission mechanism includes:

[0021] The swing rod is driven by a power element to rotate;

[0022] A connecting rod, one end of which is hingedly connected to the rocker arm, and the other end of which is hingedly connected to the longitudinal sliding seat.

[0023] Preferably, the transmission mechanism includes:

[0024] The power element drives the screw rod to rotate, the screw rod is parallel to the sliding direction of the longitudinal slide, and the screw rod and the longitudinal slide are connected by bolts.

[0025] Preferably, the transmission mechanism includes a synchronous belt transmission mechanism, the power element drives the synchronous belt transmission mechanism to transmit, the transmission direction of the synchronous belt transmission mechanism is parallel to the sliding direction of the longitudinal slide, and the synchronous belt of the synchronous belt transmission mechanism is connected to the longitudinal slide through a connecting member.

[0026] Preferably, the transmission mechanism includes a gear and a rack, the gear and the rack are meshed, the power element drives the gear to rotate, the sliding direction of the rack is parallel to the sliding direction of the longitudinal slide, and the rack is fixedly connected to the longitudinal slide.

[0027] Preferably, the transmission mechanism includes a shift fork, the power element drives the shift fork to rotate, the shift fork is provided with a waist-shaped hole, the longitudinal sliding seat is provided with a pin rod that cooperates with the waist-shaped hole, and the pin rod is inserted into the waist-shaped hole.

[0028] As a preference, there are one or more wire pressing units, each wire pressing unit corresponds to a longitudinal slide, the transverse slide corresponds to the longitudinal slide one by one, and each longitudinal slide is provided with a pushing portion.

[0029] The translation mechanism corresponds to the transverse slide one by one, and the translation mechanism drives the corresponding transverse slide to move; this facilitates the independent layout application of each wire pressing unit and the translation mechanism;

[0030] Alternatively, multiple transverse slides share a translation mechanism, which drives each transverse slide to move synchronously. In this way, there is no need for each wire pressing unit to correspond to a translation mechanism, which can effectively reduce the number of translation mechanisms and further reduce production costs.

[0031] Preferably, a detection sensor is further included, which detects the pressing force between the thread pressing piece and the thread pressing surface of each thread pressing assembly in the thread pressing unit, and the detection sensor is arranged between the longitudinal sliding seat and the pushing portion, or the detection sensor is arranged on the pushing portion toward one end of the thread pressing assembly. In this way, during the process of the driving device adjusting the pressing force between the thread pressing piece and the thread pressing surface, the pressing force between the thread pressing piece and the thread pressing surface can be detected in real time by the detection sensor. When the detection sensor detects that the pressing force between the thread pressing piece and the thread pressing surface reaches a set value, the driving device stops driving the pushing portion, thereby accurately adjusting the pressing force between the thread pressing piece and the thread pressing surface, ensuring the consistency of the tightness of each embroidery thread; effectively avoiding the problem of the processing precision of the elastic element affecting the adjustment accuracy and consistency of the embroidery thread tightness.

[0032] Preferably, the driving device is an electric cylinder or an electric push rod, and the pushing portion is arranged on the end of the telescopic rod of the electric cylinder or the electric push rod.

[0033] Preferably, the thread pressing unit further comprises a thread pressing frame arranged on the frame of the embroidery machine, the thread pressing assembly is arranged on the thread pressing frame, the thread pressing assembly further comprises a thread pressing seat and a guide rod, the guide rod is fixed on the thread pressing frame, and the thread pressing piece slides along the guide rod;

[0034] The crimping seat is fixed on the crimping frame, and the side of the crimping seat facing the crimping sheet constitutes the crimping surface;

[0035] Alternatively, the thread pressing seat can slide along the guide rod, and the thread pressing piece and the thread pressing seat slide along the guide rod under the action of the elastic element, so that the thread pressing seat is pressed against the thread pressing frame, and the side of the thread pressing seat facing the thread pressing piece constitutes the thread pressing surface. In this way, the embroidery thread is pressed tightly by the thread pressing piece and the thread pressing seat. The thread pressing seat can be manufactured separately, which is convenient for improving the smoothness of the thread pressing surface that contacts the embroidery thread.

[0036] Preferably, a detection sensor is further included, which corresponds to the wire pressing assembly one by one, and detects the pressing force between the wire pressing piece and the wire pressing surface of each wire pressing assembly. The detection sensor is arranged between the wire pressing seat and the wire pressing frame of the corresponding wire pressing assembly, or the detection sensor is arranged between the wire pressing piece and the elastic element of the corresponding wire pressing assembly. In this way, in the process of the driving device adjusting the pressing force between the wire pressing piece and the wire pressing surface, the pressing force between the wire pressing piece and the wire pressing surface can be detected in real time by the detection sensor. When the detection sensor detects that the pressing force between the wire pressing piece and the wire pressing surface reaches a set value, the driving device stops driving the pushing part, thereby accurately adjusting the pressing force between the wire pressing piece and the wire pressing surface, ensuring the consistency of the tightness of each embroidery thread; effectively avoiding the problem of affecting the adjustment accuracy and consistency of the tightness of the embroidery thread due to the processing precision problem of the elastic element.

[0037] Preferably, a limit block is provided at the end of the guide rod, and a sliding component is also provided on the guide rod. The limit block, the sliding component and the wire pressing piece are distributed in sequence along the axial direction of the guide rod. The elastic element is located between the sliding component and the wire pressing piece, and the pushing part compresses the elastic element by pushing the sliding component.

[0038] Preferably, the thread pressing unit further comprises a thread pressing frame mounted on a frame of the embroidery machine, the thread pressing assembly being mounted on the thread pressing frame, the thread pressing assembly further comprising a guide rod fixed to the thread pressing frame, the thread pressing piece sliding along the guide rod, and the side of the thread pressing frame facing the thread pressing piece constituting the thread pressing surface. In this manner, the thread pressing seat can be omitted, thereby reducing manufacturing costs.

[0039] Preferably, the elastic element is a spring, an elastic sheet, or an elastic rubber piece.

[0040] An embroidery machine comprises a pressure-adjustable automatic thread pressing device applied to the embroidery machine.

[0041] The beneficial effects of the utility model are:

[0042] First, it can automatically adjust the pressing force of the embroidery thread as needed, effectively improving the accuracy and consistency of adjusting the tightness of each embroidery thread, thereby improving the quality of the embroidery product.

[0043] Secondly, it can automatically adjust the pressing force of the embroidery thread according to needs, so there is no need to manually adjust the tightness of the embroidery thread. It can well adapt to the use needs of current multi-station embroidery machines, adapt to the production rhythm of current multi-station embroidery machines, and reduce labor costs.

[0044] Thirdly, each wire crimping assembly of each wire crimping unit only requires one driving device at most, and there is no need for each wire crimping assembly to correspond to a driving device, which can effectively reduce the number of driving devices and thus reduce the manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 The utility model is a partial side view of a pressure-adjustable automatic thread pressing device applied to an embroidery machine.

[0046] Figure 2 The utility model is a partial front view of the pressure-adjustable automatic thread pressing device applied to the embroidery machine.

[0047] Figure 3 The utility model is a three-dimensional partial structural diagram of a pressure-adjustable automatic thread pressing device applied to an embroidery machine.

[0048] Figure 4 The utility model is a three-dimensional partial structural schematic diagram of the pressure-adjustable automatic thread pressing device applied to an embroidery machine after the thread pressing frame is removed.

[0049] Figure 5 This is a front view of an embodiment of the utility model of a pressure-adjustable automatic thread pressing device applied to an embroidery machine.

[0050] Figure 6 This is a front view of another embodiment of the pressure-adjustable automatic thread pressing device for an embroidery machine of the present invention.

[0051] Figure 7 The utility model is a partial structural diagram of an embodiment of a pressure-adjustable automatic thread-pressing device for an embroidery machine in which multiple transmission mechanisms share a power element.

[0052] Figure 8 It is a partial structural diagram of another embodiment of the utility model in which multiple transmission mechanisms of the pressure-adjustable automatic thread-pressing device applied to an embroidery machine share a power element.

[0053] Figure 9This is a partial structural diagram of a third embodiment of the utility model in which multiple transmission mechanisms of the pressure-adjustable automatic thread-pressing device for an embroidery machine share a power element.

[0054] Figure 10 The utility model is a partial structural diagram of a plurality of transverse sliding seats of a pressure-adjustable automatic thread pressing device applied to an embroidery machine sharing a translation mechanism.

[0055] In the picture:

[0056] Rack 1, mounting bracket 1.1;

[0057] Driving device 2, pushing part 2.0, longitudinal slide 2.1, power element 2.2, transmission mechanism 2.3, rocker arm 2.31, connecting rod 2.32, synchronous belt transmission mechanism 2.34, driving pulley 2.35, gear 2.36, rack 2.37, driving shaft 2.4;

[0058] Wire crimping unit 3, wire crimping frame 3.1, wire crimping assembly 3.2, wire crimping piece 3.21, wire crimping surface 3.22, elastic element 3.23, sliding component 3.24, limit block 3.25, guide rod 3.26, wire crimping seat 3.27;

[0059] Needle bar frame 4;

[0060] Embroidery thread 5;

[0061] Horizontal track 6;

[0062] Transverse slide 7;

[0063] Detection sensor 8;

[0064] Translation mechanism 9, translation slider 9.1. DETAILED DESCRIPTION

[0065] Specific embodiment 1, as Figure 1-Figure 5 As shown, a pressure-adjustable automatic thread pressing device for an embroidery machine includes a thread pressing unit 3, a translation mechanism, and a drive device 2 for automatically controlling thread pressure. The embroidery machine comprises a frame 1 and several machine heads. Each machine head includes a needle bar frame 4. The needle bar frame 4 moves along the machine's horizontally distributed guide rails.

[0066] The thread pressing unit 3 includes a plurality of thread pressing assemblies 3.2 arranged side by side. In this embodiment, the thread pressing assemblies 3.2 of the same thread pressing unit 3 are arranged and distributed in sequence along the moving direction of the needle bar frame 4.

[0067] The wire pressing assembly 3.2 includes a wire pressing piece 3.21, a wire pressing surface 3.22, and an elastic element 3.23. The wire pressing piece 3.21 is pressed against the wire pressing surface 3.22 by the elastic element 3.23. The elastic element 3.23 is a spring, an elastic piece, or an elastic rubber member. In this embodiment, the elastic element 3.23 is a spring.

[0068] The drive device 2 slides along the arrangement direction of each wire pressing assembly 3.2. The drive device 2 includes a pushing portion 2.0. The pushing portion 2.0 is directed toward the wire pressing assembly 3.2. The pushing portion 2.0 is used to compress the elastic element 3.23. The drive device 2 drives the pushing portion 2.0 to move, thereby compressing the elastic element 3.23 of a particular wire pressing assembly 3.2.

[0069] The translation mechanism drives the drive device 2 to translate so that the pushing portion 2.0 of the drive device 2 corresponds to each thread-pressing assembly 3.2 of the thread-pressing unit 3. In this embodiment, the translation mechanism drives the drive device 2 to translate synchronously with the needle bar frame 4 so that the pushing portion 2.0 of the drive device 2 corresponds to each thread-pressing assembly 3.2 of the thread-pressing unit 3. By driving the pushing portion 2.0 to move, the drive device 2 compresses the elastic element 3.23 of the corresponding thread-pressing assembly 3.2 to adjust the pressing force between the corresponding thread-pressing plate 3.21 and the thread-pressing surface 3.22. The greater the compression of the elastic element 3.23, the greater the pressing force between the thread-pressing plate 3.21 and the thread-pressing surface 3.22. The embroidery thread 5 of the embroidery machine passes between the thread-pressing plate 3.21 and the thread-pressing surface 3.22, where the embroidery thread 5 is compressed.

[0070] There are one or more thread pressing units 3. Each thread pressing unit 3 corresponds to a machine head. Each thread pressing unit 3 corresponds to a pushing portion 2.0. In this embodiment, the thread pressing units 3 correspond one-to-one with the machine heads of the embroidery machine, and the thread pressing units 3 correspond one-to-one with the pushing portion 2.0. Of course, it should be noted that in actual application, the thread pressing units 3 of this embodiment can also be applied to a portion of the machine heads of the embroidery machine.

[0071] In this embodiment, the thread pressing assembly 3.2 in the same thread pressing unit 3 corresponds one-to-one with the embroidery needle on the needle bar frame 4 of the corresponding machine head. The embroidery thread 5 of the embroidery machine is located between the thread pressing piece 3.21 and the thread pressing surface 3.22 of the corresponding thread pressing assembly 3.2. Specifically, the embroidery thread 5 of the embroidery machine first passes between the thread pressing piece 3.21 and the thread pressing surface 3.22 of the corresponding thread pressing assembly 3.2, and then passes through the corresponding embroidery needle.

[0072] The specific operation of the pressure-adjustable automatic thread pressing device applied to the embroidery machine of this embodiment is as follows. The following description takes the working process of a certain embroidery needle of the embroidery machine head as an example.

[0073] When the needle bar frame 4 is translated to place the embroidery needle in the working position, the translation mechanism drives the driving device 2 to translate, and translates the pushing portion 2.0 of the driving device 2 to the thread pressing assembly 3.2 corresponding to the embroidery needle;

[0074] Next, the drive device 2 drives the pushing portion 2.0 to move and compress the elastic element 3.23 of the corresponding thread pressing assembly 3.2. The drive device 2 automatically drives and accurately controls the movement of the pushing portion 2.0, thereby precisely controlling the compression of the elastic element 3.23 and thus accurately adjusting the pressing force between the thread pressing plate 3.21 and the thread pressing surface 3.22. This effectively improves the accuracy and consistency of the tension adjustment of each embroidery thread 5 in the embroidery machine, thereby improving the quality of the embroidery product. Furthermore, the manual tension adjustment of the embroidery thread 5 is eliminated, making it well suited to the needs and production schedule of current multi-station embroidery machines and reducing labor costs.

[0075] When the embroidery needle stops working, the driving device 2 drives the pushing portion 2.0 to move back and reset, and the pushing portion 2.0 is separated from the elastic element 3.23, and the compression of the elastic element 3.23 is released, and the elastic element 3.23 returns to its initial state.

[0076] On the other hand, a row of embroidery needles are generally arranged on the needle bar frame 4 of the existing embroidery machine. The embroidery machine drives the needle bar frame 4 to move horizontally through the embroidery machine color changing system to realize the operation of different embroidery needles on the needle bar frame 4 (different embroidery needles correspond to embroidery threads 5 of different colors); and this scheme drives the driving device 2 to move horizontally through the translation mechanism, so that the pushing part 2.0 corresponds to each wire pressing component 3.2 of the wire pressing unit 3. Based on this, each wire pressing component 3.2 of each wire pressing unit 3 only needs at most one driving device 2 for automatically adjusting the wire pressure, and there is no need for each wire pressing component 3.2 to correspond to a driving device 2, which can effectively reduce the number of driving devices 2, thereby reducing the production cost.

[0077] Specifically, such as Figure 1-Figure 5 As shown, the thread pressing unit 3 also includes a thread pressing frame 3.1. The thread pressing frame 3.1 is mounted on the embroidery machine frame 1. In this embodiment, the thread pressing frame 3.1 is fixed to the embroidery machine frame 1 via a mounting bracket 1.1. The mounting bracket 1.1 is connected to the thread pressing frame 3.1 via bolts, and the mounting bracket 1.1 is also connected to the frame 1 via bolts. Each thread pressing assembly 3.2 of the thread pressing unit 3 is mounted on a corresponding thread pressing frame 3.1.

[0078] The wire crimping assembly 3.2 also includes a guide rod 3.26. The guide rod 3.26 is fixed to the wire crimping frame 3.1. Specifically, the guide rod 3.26 is fixed to the wire crimping frame 3.1 by bolts, welding, or riveting. The wire crimping plate 3.21 slides along the guide rod 3.26. The wire crimping plate 3.21 has a guide hole in the middle, through which the guide rod 3.26 passes.

[0079] like Figure 4 、 Figure 5 As shown, a limit block 3.25 is provided at the end of the guide rod 3.26. A sliding component 3.24 is also provided on the guide rod 3.26. In this embodiment, the sliding component 3.24 is a sliding plate, which slides along the guide rod 3.26. There is a guide hole in the middle of the sliding plate, and the guide rod 3.26 passes through the guide hole on the sliding plate. The limit block 3.25, the sliding component 3.24 and the wire pressing plate 3.21 are distributed in sequence along the axial direction of the guide rod 3.26. The elastic element 3.23 is located between the sliding component 3.24 and the wire pressing plate 3.21. The sliding component 3.24 rests on the limit block 3.25 under the action of the elastic element 3.23. In this embodiment, the elastic element 3.23 is a spring, which is sleeved on the guide rod 3.26, and the two ends of the spring rest between the sliding component 3.24 and the wire pressing plate 3.21.

[0080] In this embodiment, the pressing surface 3.22 is implemented in the following manner. Specifically,

[0081] In one implementation of this embodiment, Figure 5 As shown, the wire pressing assembly 3.2 also includes a wire pressing seat 3.27. The wire pressing seat 3.27 is fixed on the wire pressing frame 3.1. For example, the wire pressing seat 3.27 is fixed on the wire pressing frame 3.1 at the root of the guide rod 3.26. The elastic element 3.23, the wire pressing piece 3.21 and the wire pressing seat 3.27 are distributed in sequence along the axial direction of the guide rod 3.26. The side of the wire pressing seat 3.27 facing the wire pressing piece 3.21 constitutes the wire pressing surface 3.22. In this way, the embroidery thread 5 is pressed tightly by the wire pressing piece 3.21 and the wire pressing seat 3.27. The wire pressing seat 3.27 can be made separately to facilitate improving the smoothness of the wire pressing surface 3.22 that contacts the embroidery thread 5. The structure of the wire pressing seat 3.27 and the wire pressing piece 3.21 can be the same or different. In this embodiment, the wire pressing seat 3.27 and the wire pressing piece 3.21 are symmetrically distributed.

[0082] In the second implementation of this embodiment, Figure 5As shown, the thread pressing assembly 3.2 also includes a thread pressing seat 3.27. The thread pressing seat 3.27 can slide along the guide rod 3.26. A guide hole is provided in the middle of the thread pressing seat 3.27, and the guide rod 3.26 passes through the guide hole on the thread pressing seat 3.27. The elastic element 3.23, the thread pressing piece 3.21 and the thread pressing seat 3.27 are distributed in sequence along the axial direction of the guide rod 3.26. Under the action of the elastic element 3.23, the thread pressing piece 3.21 and the thread pressing seat 3.27 slide along the guide rod 3.26, and the thread pressing seat 3.27 is pressed against the thread pressing frame 3.1. The side of the thread pressing seat 3.27 facing the thread pressing piece 3.21 constitutes the thread pressing surface 3.22. In this way, the thread pressing piece 3.21 and the thread pressing seat 3.27 cooperate to press the embroidery thread 5. The thread pressing seat 3.27 can be manufactured separately, which facilitates improving the smoothness of the thread pressing surface 3.22 that contacts the embroidery thread 5. The structures of the wire pressing seat 3.27 and the wire pressing piece 3.21 can be the same or different. In this embodiment, the wire pressing seat 3.27 and the wire pressing piece 3.21 are symmetrically distributed.

[0083] In the third embodiment of the present invention, the side surface of the crimping frame 3.1 facing the crimping sheet 3.21 constitutes the crimping surface 3.22 (not shown in the figure). In this way, the crimping seat 3.27 can be omitted, reducing the manufacturing cost.

[0084] like Figure 1-Figure 5 As shown, the pressure-adjustable automatic thread pressing device applied to the embroidery machine also includes a transverse track 6 and a transverse slide 7 that slides along the transverse track 6. The transverse track 6 extends along the arrangement direction of each thread pressing component 3.2. The transverse track 6 is parallel to the moving direction of the needle bar frame 4. The transverse track 6 is arranged on the frame 1 or on the mounting bracket 1.1. In this embodiment, the transverse track 6 is arranged on the mounting bracket 1.1, and the transverse slide 7 corresponds to the thread pressing unit 3 one by one. The transverse slide 7 is provided with a longitudinal track 7.1 perpendicular to the transverse track 6. The longitudinal track 7.1 is parallel to the axial direction of the guide rod 3.26.

[0085] The driving device 2 is arranged on the transverse slide 7. The translation mechanism drives the transverse slide 7 to move, thereby driving the driving device 2 to translate. The driving device 2 includes a longitudinal slide 2.1 that slides along the longitudinal track 7.1, a transmission mechanism 2.3 and a power element 2.2. Each wire pressing unit 3 corresponds to a longitudinal slide 2.1. In this embodiment, the transverse slide 7 corresponds one-to-one with the longitudinal slide 2.1, and the longitudinal slide 2.1 corresponds one-to-one with the wire pressing unit 3. Each longitudinal slide 2.1 is provided with a pushing portion 2.0, and the transmission mechanism 2.3 corresponds one-to-one with the longitudinal slide 2.1. The power element 2.2 is arranged on the transverse slide 7. The power element 2.2 drives the longitudinal slide 2.1 to move along the longitudinal track 7.1. Specifically, the power element 2.2 drives the longitudinal slide 2.1 to move through the transmission mechanism 2.3. The power element 2.2 is a drive motor or a rotary pump. In this embodiment, the power element 2.2 is a drive motor. The position of the power element 2.2 is fixed.

[0086] The pushing portion 2.0 is arranged on the longitudinal sliding seat 2.1 toward the side of the wire pressing assembly 3.2. The moving direction of the pushing portion 2.0 is parallel to the axial direction of the guide rod 3.26. The pushing portion 2.0 compresses the corresponding elastic element 3.23 by pushing the corresponding sliding component 3.24. The pushing portion 2.0 and the sliding component 3.24 are connected by abutment, and the pushing portion 2.0 can be separated from the sliding component 3.24. Specifically, the pushing portion 2.0 is provided with a pressure rod through hole, and when the pushing portion 2.0 abuts against the sliding component 3.24, the guide rod 3.26 and the limit block 3.25 can extend into the pressure rod through hole. For example, the pushing portion 2.0 is a sleeve, and the inner hole of the sleeve constitutes the pressure rod through hole. Of course, it needs to be said that the purpose is that the pushing portion 2.0 can also be a pushing member, such as a pressure rod or a pushing block (the pushing member is not provided with a pressure rod through hole).

[0087] In this embodiment, the power element 2.2 and the transmission mechanism 2.3 are implemented in the following manner. Specifically,

[0088] In one implementation of this embodiment, Figure 3 、 Figure 5 As shown, the transmission mechanism 2.3 corresponds to the power element 2.2. The power element 2.2 drives the corresponding longitudinal slide 2.1 to move through the transmission mechanism 2.3. In this way, the independent layout application of each wire pressing unit 3 and the power element 2.2 is convenient.

[0089] In another implementation of this embodiment, Figure 7-Figure 9 As shown, multiple transmission mechanisms 2.3 share one power element 2.2. In this embodiment, each transmission mechanism 2.3 shares one power element 2.2. The power element 2.2 drives each longitudinal slide 2.1 to move synchronously through the transmission mechanism 2.3. When multiple transmission mechanisms 2.3 share one power element 2.2, each transverse slide 7 moves synchronously. For example, each transverse slide 7 is connected as a whole through a connecting element. In this way, each wire pressing unit 3 can share one power element 2.2, and there is no need for each wire pressing unit 3 to correspond to a power element 2.2, which effectively reduces the number of power elements 2.2, thereby further reducing the production cost.

[0090] In this embodiment, the transmission mechanism 2.3 is implemented in the following manner. Specifically,

[0091] In one implementation of this embodiment, Figure 4As shown, the transmission mechanism 2.3 includes a rocker arm 2.31 and a connecting rod 2.32. The power element 2.2 drives the rocker arm to rotate. Specifically, the output shaft of the drive motor is fixedly connected to the rocker arm, and the drive motor drives the rocker arm to rotate. One end of the connecting rod is hingedly connected to the rocker arm, and the other end of the connecting rod is hingedly connected to the longitudinal slide 2.1. The drive motor rotates the rocker arm, which, through the connecting rod, drives the longitudinal slide 2.1 to slide, thereby controlling the back-and-forth movement of the push portion 2.0. The drive motor controls the travel of the push portion 2.0 by controlling the rotation angle of the rocker arm.

[0092] In this embodiment, if Figure 7 As shown, when multiple transmission mechanisms 2.3 share one power element 2.2, the rocker arms of each transmission mechanism 2.3 share one drive shaft 2.4, which is rotatably mounted on the transverse slide 7 and parallel to the transverse track 6. The rocker arms of each transmission mechanism 2.3 are fixedly connected to the drive shaft 2.4 and extend radially along the drive shaft 2.4. The drive motor constituting the power element 2.2 drives the drive shaft 2.4 to rotate, thereby driving the rocker arms of each transmission mechanism 2.3 to rotate. The rocker arms of each transmission mechanism 2.3 drive the longitudinal slides 2.1 to move synchronously via corresponding connecting rods.

[0093] In the second embodiment of this embodiment, the transmission mechanism 2.3 includes a screw. A power element 2.2 drives the screw to rotate, i.e., a drive motor drives the screw to rotate. The screw is parallel to the sliding direction of the longitudinal slide 2.1. The screw is connected to the longitudinal slide 2.1 via bolts. The drive motor drives the screw to rotate, thereby controlling the back-and-forth movement of the push portion 2.0.

[0094] In this embodiment, when multiple transmission mechanisms 2.3 share a common power element 2.2, the screws of any two adjacent transmission mechanisms 2.3 are connected by a synchronous belt. The drive motor constituting the power element 2.2 drives the screw of any transmission mechanism 2.3 to rotate, thereby driving the screws of all transmission mechanisms 2.3 to rotate, and further driving the longitudinal slides 2.1 to move synchronously.

[0095] Alternatively, a bevel gear mechanism is provided on the lead screw of each transmission mechanism 2.3. The bevel gear mechanism includes a driven wheel mounted on the lead screw and a driving wheel meshing with the driven wheel. The driving wheels of each bevel gear mechanism share a common drive shaft 2.4. The drive shaft 2.4 is rotatably mounted on the transverse slide 7 and parallel to the transverse track 6. The driving wheels of each bevel gear mechanism are fixedly connected to the drive shaft 2.4. The drive motor constituting the power element 2.2 rotates the drive shaft 2.4, thereby driving the lead screws of each transmission mechanism 2.3 through each bevel gear mechanism, thereby driving the synchronous movement of each longitudinal slide 2.1.

[0096] In the third implementation of this embodiment, Figure 8As shown, the transmission mechanism 2.3 includes a synchronous belt drive mechanism 2.34. The synchronous belt drive mechanism 2.34 is mounted on the transverse slide 7. The transmission direction of the synchronous belt drive mechanism 2.34 is parallel to the sliding direction of the longitudinal slide 2.1. The synchronous belt of the synchronous belt drive mechanism 2.34 is connected to the longitudinal slide 2.1 via a connector. The power element 2.2 drives the synchronous belt drive mechanism 2.34, i.e., the drive motor drives the synchronous belt drive, thereby controlling the back-and-forth movement of the pushing portion 2.0.

[0097] In this embodiment, if Figure 8 As shown, when multiple transmission mechanisms 2.3 share a power element 2.2, the driving pulleys 2.35 of each synchronous belt transmission mechanism 2.34 share a driving shaft 2.4, and the driving shaft 2.4 is rotatably set on the transverse slide 7. The driving shaft 2.4 is parallel to the transverse track 6, and each driving pulley 2.35 is fixedly connected to the driving shaft 2.4; the driving motor constituting the power element 2.2 drives the driving shaft 2.4 to rotate, thereby driving the synchronous belt transmission mechanism 2.34 of each transmission mechanism 2.3 to transmit, and then driving each longitudinal slide 2.1 to move synchronously.

[0098] In the fourth implementation of this embodiment, if Figure 9 As shown, the transmission mechanism 2.3 includes a gear 2.36 and a rack 2.37. The gear and rack mesh with each other. The sliding direction of the rack 2.37 is parallel to the sliding direction of the longitudinal slide 2.1, and the rack 2.37 is fixedly connected to the longitudinal slide 2.1. The power element 2.2 drives the gear to rotate, that is, the drive motor drives the gear to rotate, which drives the rack and the longitudinal slide 2.1 to move, thereby controlling the back-and-forth movement of the pushing portion 2.0.

[0099] In this embodiment, if Figure 10 As shown, Figure 9 As shown, when multiple transmission mechanisms 2.3 share a power element 2.2, the gears 2.36 of each transmission mechanism 2.3 share a drive shaft 2.4, which is rotatably set on the transverse slide 7. The drive shaft 2.4 is parallel to the transverse track 6, and the gears 2.36 of each transmission mechanism 2.3 are fixedly connected to the drive shaft 2.4; the drive motor constituting the power element 2.2 drives the drive shaft 2.4 to rotate, thereby driving the gears of each transmission mechanism 2.3 to rotate, and the gears of each transmission mechanism 2.3 drive the longitudinal slides 2.1 to move synchronously through the corresponding racks.

[0100] In the fifth implementation of this embodiment, the transmission mechanism 2.3 includes a shift fork. A waist-shaped hole is provided on the shift fork. A pin rod that cooperates with the waist-shaped hole is provided on the longitudinal slide 2.1, and the pin rod is inserted into the waist-shaped hole. The power element 2.2 drives the shift fork to rotate. Specifically, the drive motor drives the shift fork to rotate, and the shift fork is fixedly connected to the output shaft of the drive motor. The length of the waist-shaped hole extends radially along the output shaft of the drive motor, and the pin rod is parallel to the output shaft. The drive motor drives the shift fork to rotate back and forth, and the shift fork drives the longitudinal slide 2.1 to slide through the pin rod, thereby controlling the pushing part 2.0 to move back and forth. The drive motor controls the moving stroke of the pushing part 2.0 by controlling the rotation angle of the shift fork.

[0101] In this embodiment, when multiple transmission mechanisms 2.3 share a power element 2.2, the shift forks of each transmission mechanism 2.3 share a drive shaft 2.4, which is rotatably arranged on the transverse slide 7. The drive shaft 2.4 is parallel to the transverse track 6, and the shift forks of each transmission mechanism 2.3 are fixedly connected to the drive shaft 2.4; the drive motor constituting the power element 2.2 drives the drive shaft 2.4 to rotate, thereby driving the shift forks of each transmission mechanism 2.3 to rotate, and then driving the longitudinal slides 2.1 to move synchronously.

[0102] In a sixth implementation of this embodiment, the transmission mechanism 2.3 includes a cam, and the power element 2.2 drives the cam to rotate. Specifically, the driving motor drives the cam to rotate, and the cam pushes the longitudinal slide 2.1 to move, thereby controlling the pushing part 2.0 to move back and forth.

[0103] In this embodiment, when multiple transmission mechanisms 2.3 share one power element 2.2, the cams of each transmission mechanism 2.3 share one drive shaft 2.4, which is rotatably arranged on the transverse slide 7. The drive shaft 2.4 is parallel to the transverse track 6, and the cams of each transmission mechanism 2.3 are fixedly connected to the drive shaft 2.4; the drive motor constituting the power element 2.2 drives the drive shaft 2.4 to rotate, thereby driving the cams of each transmission mechanism 2.3 to rotate, and then promoting the synchronous movement of each longitudinal slide 2.1.

[0104] Specific embodiment 2: The rest of the structure of this embodiment refers to specific embodiment 1, except that:

[0105] like Figure 3-Figure 5 As shown, the pressure-adjustable automatic thread crimping device for an embroidery machine further includes a detection sensor 8. The detection sensor 8 is used to detect the pressing force between the thread crimping piece 3.21 and the thread crimping surface 3.22 of each thread crimping assembly 3.2 in the thread crimping unit 3 (i.e., to detect the pressing force exerted on the embroidery thread 5 between the thread crimping piece 3.21 and the thread crimping surface 3.22). The detection sensor 8 can be an existing sensor, such as a force sensor.

[0106] The specific use of the pressure-adjustable automatic thread pressing device applied to the embroidery machine of this embodiment is as follows:

[0107] The driving device 2 drives the pushing portion 2.0 to move, causing it to press against the elastic element 3.23, thereby compressing the elastic element 3.23 and adjusting the pressing force between the thread pressing plate 3.21 and the thread pressing surface 3.22. During this process, the detection sensor 8 detects the pressing force between the thread pressing plate 3.21 and the thread pressing surface 3.22 in real time. When the detection sensor 8 detects that the pressing force between the thread pressing plate 3.21 and the thread pressing surface 3.22 reaches a set value, the driving device 2 stops driving the pushing portion 2.0, thereby accurately adjusting the pressing force between the thread pressing plate 3.21 and the thread pressing surface 3.22 and ensuring the consistency of the tension of each embroidery thread 5. This effectively improves the accuracy and consistency of the tension adjustment of each embroidery thread 5 on the embroidery machine, thereby improving the quality of the embroidery product. Furthermore, since manual adjustment of the tension of the embroidery thread 5 is unnecessary, the device is well suited to the needs and production rhythm of current multi-station embroidery machines and reduces labor costs.

[0108] In addition, by detecting the pressing force between the thread pressing piece 3.21 and the thread pressing surface 3.22 in real time through the detection sensor 8, the pressing force between the thread pressing piece 3.21 and the thread pressing surface 3.22 can be accurately adjusted, and the problem of affecting the adjustment accuracy and consistency of the tightness of the embroidery thread 5 due to the processing accuracy of the elastic element 3.23 can be effectively avoided.

[0109] The detection sensor 8 is used to detect the pressing force between the wire pressing piece 3.21 and the wire pressing surface 3.22 of each wire pressing component 3.2 in the wire pressing unit 3. The specific installation method of the detection sensor 8 is as follows:

[0110] In one implementation of this embodiment, Figure 3-Figure 5 As shown, the detection sensor 8 corresponds to the wire pressing unit 3 one by one. The detection sensor 8 is arranged between the longitudinal sliding seat 2.1 corresponding to the wire pressing unit 3 and the pushing portion 2.0. In this way, the pushing portion 2.0 is against the sliding component 3.24. In the process of compressing the elastic element 3.23 by pushing the sliding component 3.24, the detection sensor 8 can detect the pressing force between the wire pressing piece 3.21 and the wire pressing surface 3.22 in real time. In addition, the detection sensor 8 is arranged between the longitudinal sliding seat 2.1 and the pushing portion 2.0. In this way, each wire pressing unit 3 only needs one detection sensor 8 to detect the pressing force between the wire pressing piece 3.21 and the wire pressing surface 3.22 of each wire pressing component 3.2 in the wire pressing unit 3, effectively reducing the number of detection sensors 8 and reducing costs.

[0111] In the second embodiment of the present embodiment, the detection sensor 8 corresponds to the pushing portion 2.0 one by one. The detection sensor 8 is arranged on the corresponding pushing portion 2.0 toward one end of the wire pressing assembly 3.2 (not shown in the figure). In this way, the pushing portion 2.0 is against the sliding member 3.24. In the process of compressing the elastic element 3.23 by pushing the sliding member 3.24, the detection sensor 8 can detect the pressing force between the wire pressing piece 3.21 and the wire pressing surface 3.22 in real time. In addition, the detection sensor 8 is arranged on the pushing portion 2.0 toward one end of the wire pressing assembly 3.2. In this way, each wire pressing unit 3 only needs one detection sensor 8 to detect the pressing force between the wire pressing piece 3.21 and the wire pressing surface 3.22 of each wire pressing assembly 3.2 in the wire pressing unit 3, effectively reducing the number of detection sensors 8 and reducing costs.

[0112] In the third implementation of this embodiment, Figure 6 As shown, the detection sensor 8 corresponds to the wire pressing assembly 3.2 one-to-one. The detection sensor 8 is arranged between the wire pressing seat 3.27 of the corresponding wire pressing assembly 3.2 and the wire pressing frame 3.1. For example, the detection sensor 8 is fixed to the wire pressing frame 3.1, and the wire pressing seat 3.27 is fixed to the detection sensor 8, so that the wire pressing seat 3.27 is fixed to the wire pressing frame 3.1 through the detection sensor 8; or the detection sensor 8 is fixed to the wire pressing frame 3.1, and the wire pressing seat 3.27 slides along the guide rod 3.26 under the action of the elastic element 3.23, and the wire pressing seat 3.27 is pressed against the detection sensor 8; or the detection sensor 8 is fixed on the side of the wire pressing seat 3.27 facing away from the wire pressing piece 3.21, and the wire pressing seat 3.27 slides along the guide rod 3.26 under the action of the elastic element 3.23, and the detection sensor 8 is pressed against the wire pressing frame 3.1. In this embodiment, the pushing portion 2.0 abuts against the sliding member 3.24. In the process of pushing the sliding member 3.24 to compress the elastic element 3.23, the detection sensor 8 can detect the pressing force between the pressing piece 3.21 and the pressing surface 3.22 in real time.

[0113] In a fourth embodiment of this embodiment, the detection sensor 8 corresponds one-to-one with the wire pressing assembly 3.2. The detection sensor 8 is disposed between the wire pressing piece 3.21 and the elastic element 3.23 of the corresponding wire pressing assembly 3.2, or the detection sensor 8 is disposed on the sliding member 3.24 of the corresponding wire pressing assembly 3.2, facing one end of the pushing portion 2.0, or the detection sensor 8 is disposed between the sliding member 3.24 and the elastic element 3.23 of the wire pressing assembly 3.2 (not shown). In this embodiment, the pushing portion 2.0 abuts against the sliding member 3.24. As the sliding member 3.24 pushes to compress the elastic element 3.23, the detection sensor 8 can detect the pressing force between the wire pressing piece 3.21 and the wire pressing surface 3.22 in real time.

[0114] Specific embodiment 3: The rest of the structure of this embodiment refers to specific embodiment 1 or specific embodiment 2, except that:

[0115] In this embodiment, the drive device 2 includes a power element 2.2 and a slidably mounted longitudinal slide 2.1. The power element 2.2 corresponds to each longitudinal slide 2.1, and the power element 2.2 directly drives the corresponding longitudinal slide 2.1. In this embodiment, the drive actuator is an electric cylinder, electric push rod, or linear module (not shown).

[0116] Specific embodiment 4: The rest of the structure of this embodiment refers to specific embodiment 1, except that:

[0117] The driving device 2 is an electric cylinder or an electric push rod, that is, the driving device 2 is directly composed of the electric cylinder or the electric push rod (not shown in the figure). The driving device 2 is arranged on the transverse sliding seat 7.

[0118] In this embodiment, the drive device 2 corresponds to the wire pressing unit 3 in a one-to-one relationship. The pressing portion 2.0 corresponds to the wire pressing unit 3 in a one-to-one relationship. The pressing portion 2.0 is mounted on the end of the telescopic rod of the electric cylinder or electric push rod. The pressing portion 2.0 and the telescopic rod of the electric cylinder or electric push rod can be manufactured separately, with the pressing portion 2.0 then connected to the end of the telescopic rod. Alternatively, the pressing portion 2.0 can be formed directly from the end of the telescopic rod (without the need for a separate manufacturing process).

[0119] In this embodiment, the pressing portion 2.0 is manufactured separately from the telescopic rod of the electric cylinder or electric push rod, and is then connected to the end of the telescopic rod. During operation, the telescopic rod of the electric cylinder or electric push rod, which constitutes the driving device 2, extends, thereby driving the pressing portion 2.0 to move. The pressing portion 2.0 pushes the sliding member 3.24, which compresses the elastic element 3.23 of the corresponding wire pressing assembly 3.2.

[0120] In this embodiment, detection sensors 8 correspond one-to-one with the pressing parts 2.0. Detection sensors 8 are positioned between the corresponding pressing parts 2.0 and the end of the telescopic rod of the electric cylinder or electric push rod (not shown). As the pressing parts 2.0 abut against the sliding member 3.24, pushing the sliding member 3.24 to compress the elastic element 3.23, detection sensors 8 can detect the pressing force between the wire pressing piece 3.21 and the wire pressing surface 3.22 in real time.

[0121] Of course, in this embodiment, the specific installation method of the detection sensor 8 can also refer to the second to fourth implementation methods of the "specific installation method of the detection sensor 8" in the specific embodiment 2.

[0122] Specific embodiment 5: The rest of the structure of this embodiment refers to specific embodiment 1 or specific embodiment 2 or specific embodiment 3 or specific embodiment 4, the difference is that:

[0123] like Figure 10 As shown, the translation mechanism 9 drives the transverse slide 7 to move, thereby driving the drive device 2 and the needle bar frame 4 to move synchronously. Specifically,

[0124] In one embodiment of this invention, the translation mechanism 9 corresponds to the transverse slide 7. The translation mechanism drives the corresponding transverse slide 7 to move. The translation mechanism can also be installed on the embroidery machine frame 1, or of course, the translation mechanism can also be installed on the mounting bracket 1.1. This facilitates the independent layout and application of each thread pressing unit 3 and the translation mechanism.

[0125] In the second implementation of this embodiment, Figure 10 As shown, multiple transverse slides 7 share a translation mechanism 9. The translation mechanism drives the transverse slides 7 to move synchronously. In this embodiment, the transverse slides 7 share a translation mechanism. For example, the transverse slides 7 are connected together via a connecting element, so that the same translation mechanism drives the transverse slides 7 to move synchronously. The translation mechanism can also be installed on the embroidery machine frame 1, or on the mounting bracket 1.1. In this way, there is no need for each thread pressing unit 3 to correspond to a corresponding translation mechanism, which can effectively reduce the number of translation mechanisms and further reduce production costs.

[0126] In this embodiment, the translation mechanism adopts the following method:

[0127] The translation mechanism is an electric cylinder or an electric push rod or a linear module. In this embodiment, Figure 10 As shown, the translation mechanism 9 includes a translation motor, a translation slider 9.1, and a screw-nut drive mechanism provided on the frame 1. The translation slider is slidably provided on the frame 1, and the sliding direction of the translation slider is parallel to the transverse track 6. The nut of the screw-nut drive mechanism is connected to the translation slider. The translation slider is connected to the transverse slide 7. The translation motor drives the screw of the screw-nut drive mechanism to rotate, driving the translation slider to move back and forth, thereby driving the transverse slide 7 to move synchronously with the needle bar frame 4. Of course, it should be noted that the translation mechanism can also be other translation mechanisms available on the market.

[0128] Specific embodiment 6 is an embroidery machine, comprising a pressure-adjustable automatic thread crimping device applied to the embroidery machine. The specific structure of the pressure-adjustable automatic thread crimping device applied to the embroidery machine refers to any one of specific embodiments 1 to 5.

[0129] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any way. Any simple modification, change and equivalent transformation of the above embodiment based on the technical essence of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. The pressure-adjustable automatic thread pressing device used in embroidery machines is characterized by: include: The wire pressing unit includes a plurality of wire pressing components arranged side by side. The wire pressing components include a wire pressing piece, a wire pressing surface and an elastic element. The wire pressing piece is pressed against the wire pressing surface under the action of the elastic element. A driving device for automatically regulating the line pressure, which slides along the arrangement direction of each line pressing assembly, and includes a pushing portion; The translation mechanism drives the driving device to translate so that the pushing part corresponds to each wire pressing component of the wire pressing unit in sequence. The driving device compresses the elastic element of the corresponding wire pressing component by driving the pushing part to move to adjust the pressing force between the corresponding wire pressing piece and the wire pressing surface.

2. The pressure-adjustable automatic thread crimping device for embroidery machines according to claim 1, characterized in that: It also includes a detection sensor (8) that detects the pressing force between the wire pressing piece (3.21) and the wire pressing surface of each wire pressing assembly in the wire pressing unit (3).

3. The pressure-adjustable automatic thread crimping device for embroidery machines according to claim 1, characterized in that: It also includes a transverse track (6) and a transverse slide (7) that slides along the transverse track (6), wherein the transverse track (6) extends along the arrangement direction of each wire pressing assembly, and the transverse slide (7) is provided with a longitudinal track (7.1) perpendicular to the transverse track (6), and the translation mechanism drives the transverse slide (7) to move; The driving device (2) comprises a longitudinal sliding seat (2.1) sliding along a longitudinal track (7.1) and a power element (2.2) arranged on the transverse sliding seat (7); the power element (2.2) drives the longitudinal sliding seat (2.1) to move; and the pushing portion (2.0) is arranged on the longitudinal sliding seat (2.1) toward the side of the wire pressing assembly.

4. The pressure-adjustable automatic thread crimping device for embroidery machines according to claim 3, characterized in that: The driving device (2) further comprises a transmission mechanism (2.3), wherein the transmission mechanism (2.3) corresponds one-to-one to the longitudinal slide (2.1), the wire pressing unit (3) is one or more, each wire pressing unit (3) corresponds to a longitudinal slide (2.1), and each longitudinal slide (2.1) is provided with a pushing portion (2.0). The transmission mechanism (2.3) corresponds to the power element (2.2) on a one-to-one basis, and the power element (2.2) drives the corresponding longitudinal sliding seat (2.1) to move via the transmission mechanism (2.3); Alternatively, a plurality of transmission mechanisms (2.3) share a power element (2.2), and the power element (2.2) drives the longitudinal slides (2.1) to move synchronously via the transmission mechanism (2.3).

5. The pressure-adjustable automatic thread crimping device for embroidery machines according to claim 4, characterized in that: The transmission mechanism (2.3) comprises: A pendulum rod, wherein the power element (2.2) drives the pendulum rod to rotate; A connecting rod, one end of which is hingedly connected to the rocker arm, and the other end of which is hingedly connected to the longitudinal sliding seat (2.1).

6. The pressure-adjustable automatic thread crimping device for embroidery machines according to claim 4, characterized in that: The transmission mechanism (2.3) comprises: A screw rod is parallel to the sliding direction of the longitudinal sliding seat (2.1), the screw rod and the longitudinal sliding seat (2.1) are connected via bolts, and the power element (2.2) drives the screw rod to rotate.

7. The pressure-adjustable automatic thread crimping device for embroidery machines according to claim 4, characterized in that: The transmission mechanism (2.3) comprises a synchronous belt transmission mechanism (2.3); the power element (2.2) drives the synchronous belt transmission mechanism (2.3) to transmit; the transmission direction of the synchronous belt transmission mechanism (2.3) is parallel to the sliding direction of the longitudinal sliding seat (2.1); and the synchronous belt of the synchronous belt transmission mechanism (2.3) is connected to the longitudinal sliding seat (2.1) via a connecting piece.

8. The pressure-adjustable automatic thread crimping device for embroidery machines according to claim 4, characterized in that: The transmission mechanism (2.3) comprises a meshing gear and a rack, the power element (2.2) drives the gear to rotate, the sliding direction of the rack is parallel to the sliding direction of the longitudinal sliding seat (2.1), and the rack is fixedly connected to the longitudinal sliding seat (2.1).

9. The pressure-adjustable automatic thread crimping device for embroidery machines according to claim 4, characterized in that: The transmission mechanism (2.3) comprises a shift fork, the power element (2.2) drives the shift fork to rotate, the shift fork is provided with a waist-shaped hole, the longitudinal sliding seat (2.1) is provided with a pin rod that cooperates with the waist-shaped hole, and the pin rod is inserted into the waist-shaped hole.

10. The pressure-adjustable automatic thread crimping device for embroidery machines according to claim 3, characterized in that: There are one or more wire pressing units (3), each wire pressing unit (3) corresponds to a longitudinal slide (2.1), the transverse slide (7) corresponds to the longitudinal slide (2.1) one by one, and each longitudinal slide (2.1) is provided with a pushing portion (2.0). The translation mechanism corresponds to the transverse slide (7) one by one, and the translation mechanism drives the corresponding transverse slide (7) to move; Alternatively, a plurality of transverse slides (7) share a common translation mechanism, and the translation mechanism drives each transverse slide (7) to move synchronously.

11. The pressure-adjustable automatic thread crimping device for an embroidery machine according to any one of claims 3 to 10, characterized in that: The invention also includes a detection sensor (8) for detecting the pressing force between the wire pressing piece (3.21) and the wire pressing surface of each wire pressing assembly in the wire pressing unit (3). The detection sensor (8) is arranged between the longitudinal sliding seat (2.1) and the pushing portion (2.0), or the detection sensor (8) is arranged on the pushing portion (2.0) toward one end of the wire pressing assembly.

12. The pressure-adjustable automatic thread crimping device for an embroidery machine according to any one of claims 1 to 10, characterized in that: The driving device (2) is an electric cylinder or an electric push rod, and the pushing portion (2.0) is arranged on the end of the telescopic rod of the electric cylinder or the electric push rod.

13. The pressure-adjustable automatic thread crimping device for an embroidery machine according to any one of claims 1 to 10, characterized in that: The thread pressing unit (3) further comprises a thread pressing frame (3.1) arranged on a frame of the embroidery machine, the thread pressing assembly is arranged on the thread pressing frame (3.1), the thread pressing assembly further comprises a thread pressing seat and a guide rod (3.26), the guide rod (3.26) is fixed on the thread pressing frame (3.1), and the thread pressing piece (3.21) slides along the guide rod (3.26); The wire pressing seat is fixed on the wire pressing frame (3.1), and the side of the wire pressing seat facing the wire pressing sheet (3.21) constitutes the wire pressing surface; Alternatively, the wire pressing seat can slide along the guide rod (3.26), and the wire pressing piece (3.21) and the wire pressing seat slide along the guide rod (3.26) under the action of the elastic element, and the wire pressing seat is pressed against the wire pressing frame (3.1), and the side of the wire pressing seat facing the wire pressing piece (3.21) constitutes the wire pressing surface.

14. The pressure-adjustable automatic thread crimping device for an embroidery machine according to claim 13, characterized in that: The device further comprises a detection sensor (8), which corresponds to the wire pressing assembly one by one and detects the pressing force between the wire pressing piece (3.21) and the wire pressing surface of each wire pressing assembly. The detection sensor (8) is arranged between the wire pressing seat and the wire pressing frame (3.1) of the corresponding wire pressing assembly, or the detection sensor (8) is arranged between the wire pressing piece (3.21) and the elastic element of the corresponding wire pressing assembly.

15. The pressure-adjustable automatic thread crimping device for embroidery machines according to claim 13, characterized in that: A limit block is provided at the end of the guide rod (3.26), and a sliding component is also provided on the guide rod (3.26). The limit block, the sliding component and the wire pressing piece (3.21) are distributed in sequence along the axial direction of the guide rod (3.26). The elastic element is located between the sliding component and the wire pressing piece (3.21), and the pushing portion (2.0) compresses the elastic element by pushing the sliding component.

16. The pressure-adjustable automatic thread crimping device for an embroidery machine according to any one of claims 1 to 10, characterized in that: The thread pressing unit (3) further comprises a thread pressing frame (3.1) arranged on a frame of the embroidery machine, the thread pressing assembly is arranged on the thread pressing frame (3.1), the thread pressing assembly further comprises a guide rod (3.26), the guide rod (3.26) is fixed on the thread pressing frame (3.1), the thread pressing piece (3.21) slides along the guide rod (3.26), and the side of the thread pressing frame (3.1) facing the thread pressing piece (3.21) constitutes the thread pressing surface.

17. The pressure-adjustable automatic thread crimping device for an embroidery machine according to any one of claims 1 to 10, characterized in that: The elastic element is a spring, an elastic sheet or an elastic rubber piece.

18. An embroidery machine, characterized in that: The invention comprises the pressure-adjustable automatic thread pressing device applied to an embroidery machine as described in any one of claims 1 to 17.

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