Automatic color changing control line pressure equipment for embroidery machine and embroidery machine

Abstract

The utility model discloses automatic color changing control line pressure equipment for an embroidery machine and the embroidery machine, and aims to provide the automatic color changing control line pressure equipment for the embroidery machine, 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. Therefore, the automatic color changing control line pressure equipment for the embroidery machine and the embroidery machine are provided. The wire pressing unit comprises a translation frame and a plurality of wire pressing assemblies which are distributed on the translation frame side by side, each wire pressing assembly comprises an elastic element, a wire pressing surface and a wire pressing sheet, and the wire pressing sheets abut against the wire pressing surfaces under the action of the elastic elements; a pressing part; the linear pressure automatic regulation and control driving mechanism is used for driving the pushing and pressing part to move; the translation frame and a needle bar frame of the embroidery machine synchronously move, so that the pushing and pressing part sequentially corresponds to each thread pressing assembly, and the automatic thread pressure regulation and control driving mechanism compresses the elastic element of the corresponding thread pressing assembly by driving the pushing and pressing part to move, so as to adjust the pressing force between the corresponding thread pressing sheet and the thread pressing surface.

Description

Technical Field

[0001] The utility model relates to the field of embroidery machines, in particular to an automatic color-changing control line pressure device for embroidery machines 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. 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. At present, the thread presser is adjusted by the operator manually rotating the thread presser knob to adjust the pressing force of the thread presser knob 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 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 purpose of the utility model is to provide an automatic color-changing control line pressure device and an embroidery machine for an embroidery machine, which can automatically adjust the pressing force of the embroidery thread according to the 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 needs of current multi-station embroidery machines.

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

[0008] An automatic color-changing control line pressure device for an embroidery machine, comprising:

[0009] The wire pressing unit comprises a translation frame and a plurality of wire pressing components arranged side by side on the translation frame, wherein the wire pressing components comprise an elastic element, a wire pressing surface and a wire pressing sheet, and the wire pressing sheet is pressed against the wire pressing surface under the action of the elastic element;

[0010] Pushing part;

[0011] A linear pressure automatic regulating driving mechanism for driving the push part to move;

[0012] The translation frame moves synchronously with the needle bar frame of the embroidery machine so that the pushing part corresponds to each thread pressing component in turn. The thread pressure automatic control driving mechanism compresses the elastic element of the corresponding thread pressing component by driving the pushing part to move to adjust the pressing force between the corresponding thread pressing piece and the thread pressing surface.

[0013] The specific working process of the automatic color-changing control line pressure device for the embroidery machine of this scheme is as follows. The working process of a certain embroidery needle of the head of the embroidery machine is described as an example.

[0014] When the needle bar frame translates to place the embroidery needle in the working position, the translation frame and the needle bar frame move synchronously to move the thread pressing assembly corresponding to the embroidery needle to the pushing part; then, the thread pressure automatic control driving mechanism drives the pushing part to move to compress the elastic element of the corresponding thread pressing assembly. The thread pressure automatic control driving mechanism can automatically drive and accurately control the moving stroke of the pushing part, and then accurately control the compression amount of the elastic element, so as to accurately adjust the pressing force between the thread pressing piece and the thread pressing surface; thus, the accuracy and consistency of the tightness adjustment of each embroidery thread of the embroidery machine can be effectively improved, thereby improving the quality of the embroidery product. At the same time, there is no need to manually adjust the tightness of the embroidery thread, so it can well adapt to the use requirements of the current multi-station embroidery machine, adapt to the production rhythm of the current multi-station embroidery machine, and reduce labor costs.

[0015] On the other hand, the needle bar frame of the existing embroidery machines is generally provided with a row of embroidery needles. The embroidery machine drives the needle bar frame to translate through the color changing system of the embroidery machine to realize the operation of different embroidery needles on the needle bar frame (different embroidery needles correspond to embroidery threads of different colors); and the translation frame of the present scheme moves synchronously with the needle bar frame, so that the pushing part corresponds to each thread pressing component in turn. Based on this, each thread pressing component of each thread pressing unit only needs one thread pressure automatic control drive mechanism at most, and there is no need for each thread pressing component to correspond to one thread pressure automatic control drive mechanism, which can effectively reduce the number of thread pressure automatic control drive mechanisms, thereby reducing the manufacturing cost.

[0016] As a preference, it also includes:

[0017] A translation track parallel to the moving direction of the needle bar frame, and the translation frame translates along the translation track;

[0018] The translation drive mechanism drives the translation frame to move synchronously with the needle bar frame along the translation track. In this way, the positions of the translation track and the translation frame can be arranged according to actual needs, and then the translation drive mechanism drives the translation frame to move synchronously with the needle bar frame.

[0019] Preferably, there are multiple wire pressing units, and the translation frames of each wire pressing unit share a translation drive mechanism, which drives the translation frames of each wire pressing unit to move synchronously. In this way, there is no need for each wire pressing unit to correspond to a translation drive mechanism, which can effectively reduce the number of translation drive mechanisms, thereby further reducing the manufacturing cost.

[0020] Preferably, there are multiple wire pressing units, each of which corresponds to a translation drive mechanism, and the translation drive mechanism drives the corresponding translation frame to move, so as to facilitate the independent layout and application of each wire pressing unit and the translation drive mechanism.

[0021] Preferably, the translation frame is directly fixed on the needle bar frame. In this way, the translation frame can move synchronously with the needle bar frame, and no additional power mechanism is required to drive the translation frame to move synchronously with the needle bar frame, which can further reduce the production cost and facilitate actual production.

[0022] Preferably, a detection sensor is also included, which detects the pressing force between the wire pressing piece and the wire pressing surface of each wire pressing component in the wire pressing unit. In this way, in the process of the automatic online pressure control driving mechanism 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 the set value, the automatic online pressure control driving mechanism stops driving the pushing part, thereby accurately adjusting the pressing force between the wire pressing piece and the wire pressing surface to ensure the consistency of the tightness of each embroidery thread; effectively avoiding the problem of affecting the accuracy and consistency of adjusting the tightness of the embroidery thread due to the processing precision of the elastic element.

[0023] Preferably, the line pressure automatic control driving mechanism comprises:

[0024] A sliding seat is slidably arranged, and the pushing part is arranged on the sliding seat toward the side of the wire pressing assembly;

[0025] A power component drives the sliding seat to move.

[0026] Preferably, the line pressure automatic control driving mechanism further includes a transmission mechanism, there are one or more line pressing units, each line pressing unit corresponds to a sliding seat, each sliding seat is provided with a pushing portion, and the transmission mechanism corresponds to the sliding seat one by one.

[0027] The transmission mechanism corresponds to the power component one by one, and the power component drives the corresponding sliding seat to move through the transmission mechanism; thus, it is convenient for the independent layout application of each crimping unit and the power component;

[0028] Or multiple transmission mechanisms share one power component, and the power component drives each sliding seat to move synchronously through the transmission mechanism. In this way, each wire pressing unit does not need to correspond to a power component, which can effectively reduce the number of power components, thereby further reducing the manufacturing cost.

[0029] Preferably, the transmission mechanism comprises:

[0030] The swing rod is driven by a power component to rotate;

[0031] A connecting rod has one end hingedly connected to the rocker arm and the other end hingedly connected to the sliding seat.

[0032] Preferably, the transmission mechanism comprises:

[0033] The power component drives the screw rod to rotate, the sliding direction of the screw rod is parallel to that of the sliding seat, and the screw rod and the sliding seat are connected by bolts.

[0034] Preferably, the transmission mechanism includes a synchronous belt transmission mechanism, the power component 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 sliding seat, and the synchronous belt of the synchronous belt transmission mechanism is connected to the sliding seat through a connecting member.

[0035] Preferably, the transmission mechanism includes a gear and a rack, the gear is meshed with the rack, the power component drives the gear to rotate, the sliding direction of the rack is parallel to the sliding direction of the sliding seat, and the rack is fixedly connected to the sliding seat.

[0036] Preferably, the transmission mechanism includes a shift fork, the power component drives the shift fork to rotate, the shift fork is provided with a waist-shaped hole, the sliding seat is provided with a pin rod that matches the waist-shaped hole, and the pin rod is inserted in the waist-shaped hole.

[0037] Preferably, a detection sensor is also included, which detects the pressing force between the wire pressing piece and the wire pressing surface of each wire pressing assembly in the wire pressing unit, and the detection sensor is arranged between the sliding seat and the pushing part, or the detection sensor is arranged on the pushing part at one end of the wire pressing assembly. In this way, in the process of the automatic online pressure control driving mechanism 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 automatic online pressure control driving mechanism stops driving the pushing part, thereby accurately adjusting the pressing force between the wire pressing piece and the wire pressing surface to ensure 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.

[0038] In addition, the detection sensor is arranged between the sliding seat and the pushing portion, or the detection sensor is arranged on the pushing portion at one end facing the wire pressing assembly. In this way, each wire pressing unit only needs one detection sensor to detect the clamping force between the wire pressing piece and the wire pressing surface of each wire pressing assembly in the wire pressing unit, thereby effectively reducing the number of detection sensors and reducing costs.

[0039] Preferably, the line pressure automatic control driving mechanism 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.

[0040] Preferably, the wire crimping assembly further comprises a wire crimping seat and a guide rod, the guide rod is fixed on the translation frame, and the wire crimping sheet slides along the guide rod;

[0041] The wire pressing seat is fixed on the translation frame, and the side of the wire pressing seat facing the wire pressing sheet constitutes the wire pressing surface;

[0042] Alternatively, the thread pressing seat can slide along the guide rod, and the thread pressing sheet and the thread pressing seat slide along the guide rod under the action of the elastic element, and the thread pressing seat is pressed against the translation frame, and the side of the thread pressing seat facing the thread pressing sheet constitutes the thread pressing surface. In this way, the embroidery thread is pressed tightly by the thread pressing sheet and the thread pressing seat, and the thread pressing seat can be made separately, which is convenient for improving the smoothness of the thread pressing surface in contact with the embroidery thread.

[0043] Preferably, it also includes a detection sensor, which corresponds to the wire pressing assembly one by one, detects the pressing force between the wire pressing piece and the wire pressing surface of each wire pressing assembly, and the detection sensor is arranged between the wire pressing seat and the translation 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 automatic online pressure control driving mechanism 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 the set value, the automatic online pressure control driving mechanism stops driving the pushing part, thereby accurately adjusting the pressing force between the wire pressing piece and the wire pressing surface to ensure 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 of the elastic element.

[0044] 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.

[0045] Preferably, the wire pressing assembly further comprises a guide rod, which is fixed on the translation frame, along which the wire pressing piece slides, and the side of the translation frame facing the wire pressing piece constitutes the wire pressing surface. In this way, the wire pressing seat can be omitted, thereby reducing the manufacturing cost.

[0046] Preferably, the elastic element is a spring, an elastic sheet or an elastic rubber piece.

[0047] An embroidery machine comprises an automatic color-changing control line pressure device for the embroidery machine.

[0048] The beneficial effects of the utility model are:

[0049] Firstly, it can automatically adjust the pressing force of the embroidery thread according to the needs, effectively improving the accuracy and consistency of the tightness adjustment of each embroidery thread, thereby improving the quality of the embroidery product.

[0050] Secondly, it can automatically adjust the pressing force of the embroidery thread according to the needs, so there is no need to manually adjust the tightness of the embroidery thread. It can well adapt to the use needs of the current multi-station embroidery machine, adapt to the production rhythm of the current multi-station embroidery machine, and reduce labor costs.

[0051] Thirdly, each wire crimping component of each wire crimping unit only needs one wire pressure automatic control driving mechanism at most, and there is no need for each wire crimping component to correspond to one wire pressure automatic control driving mechanism, which can effectively reduce the number of wire pressure automatic control driving mechanisms, thereby reducing the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1The utility model is a three-dimensional partial structural schematic diagram of an automatic color-changing control line pressure device for an embroidery machine applied on the embroidery machine.

[0053] Figure 2 The utility model is a three-dimensional partial structural schematic diagram of an automatic color-changing control line pressure device for an embroidery machine.

[0054] Figure 3 The utility model is a three-dimensional partial structural schematic diagram of an automatic color-changing control line pressure device for an embroidery machine after the translation frame is removed.

[0055] Figure 4 The utility model is a front view of an implementation method of an automatic color-changing control line pressure device for an embroidery machine.

[0056] Figure 5 It is a front view of another embodiment of the automatic color-changing control line pressure device for an embroidery machine of the utility model.

[0057] Figure 6 It is a front view of a third embodiment of the automatic color-changing control line pressure device for an embroidery machine of the utility model.

[0058] Figure 7 It is a front view of a fourth embodiment of an automatic color-changing control line pressure device for an embroidery machine of the utility model.

[0059] Figure 8 The utility model is a partial structural schematic diagram of an implementation mode in which multiple transmission mechanisms of an automatic color-changing control line pressure device for an embroidery machine share a power component.

[0060] Fig. 9 It is another partial structural schematic diagram of another implementation mode of the utility model when multiple transmission mechanisms of an automatic color-changing control line pressure device for an embroidery machine share a power component.

[0061] Fig.10 The utility model is a partial structural schematic diagram of a third implementation mode in which a plurality of transmission mechanisms of an automatic color-changing control line pressure device for an embroidery machine share a power component.

[0062] Fig.11 It is another partial structural schematic diagram of the fourth implementation mode of the utility model when multiple transmission mechanisms of the automatic color-changing control line pressure device for an embroidery machine share one power component.

[0063] Fig.12The utility model is a partial structural schematic diagram of a plurality of translation brackets of thread pressing units of an automatic color-changing control thread pressure device for an embroidery machine when the translation driving mechanism is shared by the translation driving mechanism.

[0064] In the figure:

[0065] Mounting bracket 1, guide rail 1.1, translation rail 1.2;

[0066] Line pressure automatic control driving mechanism 2, power component 2.1, sliding seat 2.2, pin rod 2.21, transmission mechanism 2.3, swing rod 2.31, connecting rod 2.32, screw rod 2.33, shift fork 2.34, waist hole 2.35, gear 2.36, rack 2.37, synchronous belt transmission mechanism 2.38, driving pulley 2.39, driving shaft 2.4;

[0067] Wire pressing unit 3, translation frame 3.1, wire pressing assembly 3.2, wire pressing sheet 3.21, wire pressing surface 3.22, elastic element 3.23, sliding component 3.24, limit block 3.25, guide rod 3.26, wire pressing seat 3.27;

[0068] Needle bar holder 4;

[0069] Embroidery thread 5;

[0070] Rack 6;

[0071] Pushing part 7;

[0072] Detection sensor 8;

[0073] Translation drive mechanism 9;

[0074] Connecting element 10. DETAILED DESCRIPTION

[0075] Specific embodiment 1, as Figure 1-Figure 4 As shown, an automatic color-changing thread pressure control device for an embroidery machine includes a thread pressing unit 3, a pushing portion 7 and a thread pressure automatic control driving mechanism 2.

[0076] The thread pressing unit 3 includes a translation frame 3.1 and a plurality of thread pressing assemblies 3.2 arranged side by side on the translation frame 3.1. The thread pressing assemblies 3.2 are arranged on the translation frame 3.1. The translation frame 3.1 moves synchronously with the needle bar frame 4 of the embroidery machine. The thread pressing assemblies 3.2 are arranged in sequence along the moving direction of the translation frame 3.1.

[0077] The wire pressing assembly 3.2 includes an elastic element 3.23, a wire pressing surface 3.22 and a wire pressing sheet 3.21. The wire pressing sheet 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 or an elastic sheet or an elastic rubber member. In this embodiment, the elastic element 3.23 is a spring.

[0078] The pushing portion 7 is used to compress the elastic element 3.23. The line pressure automatic control driving mechanism 2 drives the pushing portion 7 to move so as to compress the elastic element 3.23 of a certain line pressing assembly 3.2.

[0079] The translation frame 3.1 moves synchronously with the needle bar frame 4 of the embroidery machine, so that the pushing part 7 corresponds to each thread pressing assembly 3.2 in turn, and the thread pressure automatic control driving mechanism 2 compresses the elastic element 3.23 of the corresponding thread pressing assembly 3.2 by driving the pushing part 7 to move, so as to adjust the pressing force between the corresponding thread pressing piece 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 piece 3.21 and the thread pressing surface 3.22. The embroidery thread 5 of the embroidery machine passes between the thread pressing piece 3.21 and the thread pressing surface 3.22, and the embroidery thread 5 is pressed between the thread pressing piece 3.21 and the thread pressing surface 3.22.

[0080] 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 7. In this embodiment, the thread pressing unit 3 corresponds to the machine head of the embroidery machine one-to-one, and the thread pressing unit 3 corresponds to the pushing portion 7 one-to-one. Of course, it should be noted that in actual application, the thread pressing unit 3 of this embodiment can also be applied to a part of the machine heads of the embroidery machine.

[0081] In this embodiment, the thread pressing assembly 3.2 in the same thread pressing unit 3 corresponds to 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.

[0082] The specific operation of the automatic color-changing control line pressure device for the embroidery machine of this embodiment is as follows (among the embroidery needles on the same needle bar frame 4 of the embroidery machine, when one of the embroidery needles is working, the other embroidery needles are not working). The following takes the working process of a certain embroidery needle of the head of the embroidery machine as an example to describe.

[0083] When the needle bar frame 4 is translated to place the embroidery needle in the working position, the translation frame 3.1 moves synchronously with the needle bar frame 4 to move the thread pressing assembly 3.2 corresponding to the embroidery needle to the pushing portion 7;

[0084] Then, the line pressure automatic control driving mechanism 2 drives the pushing part 7 to move to compress the elastic element 3.23 of the corresponding line pressing assembly 3.2. The line pressure automatic control driving mechanism 2 can automatically drive and accurately control the movement stroke of the pushing part 7, and then accurately control the compression amount of the elastic element 3.23, so as to accurately adjust the pressing force between the line pressing piece 3.21 and the line pressing surface 3.22; thus, the accuracy and consistency of the tightness adjustment of each embroidery thread 5 of the embroidery machine can be effectively improved, thereby improving the quality of the embroidery. At the same time, there is no need to manually adjust the tightness of the embroidery thread 5, so it can well adapt to the use requirements of the current multi-station embroidery machine, adapt to the production rhythm of the current multi-station embroidery machine, and reduce labor costs.

[0085] When the embroidery needle stops working, the thread pressure automatic control driving mechanism 2 drives the pushing part 7 to move back and reset, and the pushing part 7 is separated from the elastic element 3.23, the compression of the elastic element 3.23 is released, and the elastic element 3.23 returns to the initial state.

[0086] On the other hand, a row of embroidery needles are generally arranged on the needle bar frame 4 of the existing embroidery machines. The embroidery machine drives the needle bar frame 4 to translate through the embroidery machine color changing system to enable different embroidery needles on the needle bar frame 4 to work (different embroidery needles correspond to embroidery threads 5 of different colors); and the translation frame 3.1 of the present scheme moves synchronously with the needle bar frame 4, so that the pushing part 7 corresponds to each thread pressing component 3.2 in turn. Based on this, each thread pressing component 3.2 of each thread pressing unit 3 only needs one thread pressure automatic control drive mechanism 2 at most, and there is no need for each thread pressing component 3.2 to correspond to one thread pressure automatic control drive mechanism 2, which can effectively reduce the number of thread pressure automatic control drive mechanisms 2, thereby reducing the manufacturing cost.

[0087] Specifically, Figure 1-Figure 4 As shown, an automatic color-changing control line pressure device for an embroidery machine also includes a mounting bracket 1. The mounting bracket 1 is mounted on the frame 6 of the embroidery machine. In this embodiment, the mounting bracket 1 corresponds to the line pressing unit 3 one by one. A guide rail 1.1 is provided on the mounting bracket 1. The guide rail 1.1 is perpendicular to the moving direction of the needle bar frame 4. The line pressing assembly 3.2 also includes a guide rod 3.26. The guide rod 3.26 is fixed on the translation frame 3.1. Specifically. The guide rod 3.26 is fixed to the translation frame 3.1 by bolts, welding or riveting. The guide rail 1.1 is parallel to the guide rod 3.26. The line pressing piece 3.21 slides along the guide rod 3.26. A guide hole is provided in the middle of the line pressing piece 3.21, and the guide rod 3.26 passes through the guide hole on the line pressing piece 3.21.

[0088] like Figure 4As 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 the present embodiment, the sliding component 3.24 is a sliding sheet, and the sliding sheet slides along the guide rod 3.26. The guide sheet has a guide hole in the middle, and the guide rod 3.26 passes through the guide hole on the sliding sheet. The limit block 3.25, the sliding component 3.24 and the wire pressing sheet 3.21 are sequentially distributed 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 sheet 3.21. The sliding component 3.24 abuts against the limit block 3.25 under the action of the elastic element 3.23. In the present embodiment, the elastic element 3.23 is a spring, and the spring is sleeved on the guide rod 3.26, and the two ends of the spring abut between the sliding component 3.24 and the wire pressing sheet 3.21.

[0089] In this embodiment, the pressing surface 3.22 is implemented in the following manner. Specifically,

[0090] In one implementation of this embodiment, Figure 4 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 translation frame 3.1. For example, the wire pressing seat 3.27 is fixed on the translation frame 3.1 at the root of the guide rod 3.26. The elastic element 3.23, the wire pressing sheet 3.21 and the wire pressing seat 3.27 are sequentially distributed along the axial direction of the guide rod 3.26. The side of the wire pressing seat 3.27 facing the wire pressing sheet 3.21 constitutes the wire pressing surface 3.22. In this way, the wire pressing sheet 3.21 cooperates with the wire pressing seat 3.27 to press the embroidery thread 5, and the wire pressing seat 3.27 can be made separately, which is convenient for improving the smoothness of the wire pressing surface 3.22 in contact with the embroidery thread 5. The structure of the wire pressing seat 3.27 and the wire pressing sheet 3.21 can be the same or different. In this embodiment, the wire pressing seat 3.27 and the wire pressing sheet 3.21 are symmetrically distributed.

[0091] In the second implementation mode of this embodiment, Figure 4 As shown, the wire pressing assembly 3.2 also includes a wire pressing seat 3.27. The wire pressing seat 3.27 can slide along the guide rod 3.26. A guide hole is provided in the middle of the wire pressing seat 3.27, and the guide rod 3.26 passes through the guide hole on the wire pressing seat 3.27. The elastic element 3.23, the wire pressing sheet 3.21 and the wire pressing seat 3.27 are sequentially distributed along the axial direction of the guide rod 3.26. Under the action of the elastic element 3.23, the wire pressing sheet 3.21 and the wire pressing seat 3.27 slide along the guide rod 3.26, and the wire pressing seat 3.27 is pressed against the translation frame 3.1. The side of the wire pressing seat 3.27 facing the wire pressing sheet 3.21 constitutes the wire pressing surface 3.22. In this way, the embroidery thread 5 is pressed tightly by the cooperation of the wire pressing sheet 3.21 and the wire pressing seat 3.27, and the wire pressing seat 3.27 can be made separately, which is convenient for improving the smoothness of the wire pressing surface 3.22 in contact with the embroidery thread 5. The structures of the wire pressing seat 3.27 and the wire pressing sheet 3.21 may be the same or different. In this embodiment, the wire pressing seat 3.27 and the wire pressing sheet 3.21 are symmetrically distributed.

[0092] In the third implementation of this embodiment, the side of the translation frame 3.1 facing the wire pressing sheet 3.21 constitutes the wire pressing surface 3.22 (not shown in the figure). In this way, the wire pressing seat 3.27 can be omitted to reduce the manufacturing cost.

[0093] like Figure 2-Figure 4 As shown, the line pressure automatic control driving mechanism 2 includes a power component 2.1, a transmission mechanism 2.3 and a sliding seat 2.2 that is slidably arranged. Each wire pressing unit 3 corresponds to a sliding seat 2.2. In this embodiment, the sliding seat 2.2 corresponds one to one with the wire pressing unit 3. The sliding seat 2.2 is slidably arranged on the guide rail 1.1 on the corresponding mounting bracket 1. The transmission mechanism 2.3 corresponds one to one with the sliding seat 2.2. The power component 2.1 drives the sliding seat 2.2 to move through the transmission mechanism 2.3. The power component 2.1 is a driving motor or a rotary pump. In this embodiment, the power component 2.1 is a driving motor. The position of the power component 2.1 is fixed.

[0094] The pushing portion 7 is arranged on the sliding seat 2.2 toward the side of the wire pressing assembly 3.2. In the present embodiment, each sliding seat 2.2 is provided with a pushing portion 7, and the pushing portion 7 corresponds to the wire pressing unit 3 one by one. The moving direction of the pushing portion 7 is parallel to the axial direction of the guide rod 3.26. The pushing portion 7, the sliding component 3.24 and the wire pressing sheet 3.21 are sequentially distributed along the axial direction of the guide rod 3.26. The pushing portion 7 compresses the elastic element 3.23 by pushing the sliding component 3.24. The pushing portion 7 is connected to the sliding component 3.24 by abutment, and the pushing portion 7 can be separated from the sliding component 3.24. Specifically, the pushing portion 7 is provided with a pressure rod through hole, and when the pushing portion 7 is 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 7 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 7 can also be a pushing member, such as a pushing rod or a pushing block (the pushing member is not provided with a pushing rod through hole).

[0095] In this embodiment, the power component 2.1 and the transmission mechanism 2.3 are implemented in the following manner. Specifically,

[0096] In one implementation of this embodiment, Figure 4 As shown, the transmission mechanism 2.3 corresponds to the power component 2.1 one by one. The power component 2.1 drives the corresponding sliding seat 2.2 to move through the transmission mechanism 2.3. In this way, it is convenient to independently layout and apply each thread pressing unit 3 and the power component 2.1. In this embodiment, the power component 2.1 is arranged on the corresponding mounting bracket 1. Of course, the power component 2.1 can also be arranged on the frame 6 of the embroidery machine.

[0097] In another implementation of this embodiment, Figure 8 , Fig. 9 As shown, multiple transmission mechanisms 2.3 share one power component 2.1. In this embodiment, each transmission mechanism 2.3 shares one power component 2.1. The power component 2.1 drives each sliding seat 2.2 to move synchronously through the transmission mechanism 2.3. In this way, each thread pressing unit 3 can share one power component 2.1, and there is no need for each thread pressing unit 3 to correspond to a power component 2.1, which effectively reduces the number of power components 2.1, thereby further reducing the manufacturing cost. In this embodiment, the power component 2.1 is arranged on one of the mounting brackets 1. Of course, the power component 2.1 can also be arranged on the frame 6 of the embroidery machine.

[0098] In this embodiment, the transmission mechanism 2.3 is implemented in the following manner. Specifically,

[0099] In one implementation of this embodiment, Figure 4 As shown, the transmission mechanism 2.3 includes a rocker bar 2.31 and a connecting rod 2.32. The power component 2.1 drives the rocker bar 2.31 to rotate, that is, the output shaft of the driving motor is fixedly connected to the rocker bar 2.31, and the driving motor drives the rocker bar 2.31 to rotate. One end of the connecting rod 2.32 is hingedly connected to the rocker bar 2.31, and the other end of the connecting rod 2.32 is hingedly connected to the sliding seat 2.2. The driving motor drives the rocker bar 2.31 to rotate, and the rocker bar 2.31 drives the sliding seat 2.2 to slide through the connecting rod 2.32, thereby controlling the pushing part 7 to move back and forth. The driving motor controls the moving stroke of the pushing part 7 by controlling the rotation angle of the rocker bar 2.31.

[0100] In this embodiment, if Figure 8 As shown, when multiple transmission mechanisms 2.3 share one power component 2.1, the rocker rods 2.31 of each transmission mechanism 2.3 share one driving shaft 2.4, the driving shaft is rotatably arranged on the mounting bracket 1 or the frame 6, the driving shaft is perpendicular to the sliding direction of the sliding seat, the rocker rod 2.31 of each transmission mechanism 2.3 is fixedly connected to the driving shaft and extends radially along the driving shaft; the driving motor constituting the power component 2.1 drives the driving shaft to rotate, thereby driving the rocker rods 2.31 of each transmission mechanism 2.3 to rotate, and the rocker rods 2.31 of each transmission mechanism 2.3 drive each sliding seat 2.2 to move synchronously through the corresponding connecting rods 2.32.

[0101] In the second implementation mode of this embodiment, Figure 5 As shown, the transmission mechanism 2.3 includes a screw rod 2.33. The power component 2.1 drives the screw rod 2.33 to rotate, that is, the driving motor drives the screw rod 2.33 to rotate. The screw rod 2.33 is parallel to the sliding direction of the sliding seat 2.2. The screw rod 2.33 is connected to the sliding seat 2.2 by bolts. The driving motor drives the screw rod 2.33 to rotate, thereby controlling the push portion 7 to move back and forth.

[0102] In this embodiment, when multiple transmission mechanisms 2.3 share one power component 2.1, the screw rods 2.33 of any two adjacent transmission mechanisms 2.3 are connected by a synchronous belt, and the driving motor constituting the power component 2.1 drives the screw rod 2.33 of any transmission mechanism 2.3 to rotate, thereby driving the screw rods 2.33 of each transmission mechanism 2.3 to rotate, and further driving each sliding seat 2.2 to move synchronously;

[0103] Alternatively, a bevel gear mechanism is provided on the screw rod 2.33 of each transmission mechanism 2.3, and the bevel gear mechanism includes a driven wheel arranged on the screw rod 2.33 and a driving wheel meshing with the driven wheel. The driving wheels of each bevel gear mechanism share a driving shaft, and the driving shaft is rotatably arranged on the mounting bracket 1 or the frame 6, and the driving wheel of each bevel gear mechanism is fixedly connected to the driving shaft; the driving motor constituting the power component 2.1 drives the driving shaft to rotate, thereby driving the screw rod 2.33 of each transmission mechanism 2.3 to rotate through each bevel gear mechanism, and then driving each sliding seat 2.2 to move synchronously.

[0104] In the third implementation of this embodiment, Fig. 9 As shown, the transmission mechanism 2.3 includes a synchronous belt transmission mechanism 2.38. The synchronous belt transmission mechanism 2.38 is arranged on a bracket. The transmission direction of the synchronous belt transmission mechanism 2.38 is parallel to the sliding direction of the sliding seat 2.2. The synchronous belt of the synchronous belt transmission mechanism 2.38 is connected to the sliding seat 2.2 through a connecting piece. The power component 2.1 drives the synchronous belt transmission mechanism 2.38 to transmit, that is, the driving motor drives the synchronous belt transmission, thereby controlling the push part 7 to move back and forth.

[0105] In this embodiment, if Fig. 9 As shown, when multiple transmission mechanisms 2.3 share a power component 2.1, the driving pulleys 2.39 of each synchronous belt transmission mechanism 2.38 share a driving shaft 2.4, and the driving shaft 2.4 is rotatably set on the mounting bracket 1 or the frame 6. The driving shaft is perpendicular to the sliding direction of the sliding seat, and each driving pulley is fixedly connected to the driving shaft; the driving motor constituting the power component 2.1 drives the driving shaft to rotate, thereby driving the synchronous belt transmission mechanism 2.38 of each transmission mechanism 2.3 to transmit, and then drives each sliding seat 2.2 to move synchronously.

[0106] In the fourth implementation of this embodiment, Fig.10 As shown, the transmission mechanism 2.3 includes a gear 2.36 and a rack 2.37. The gear is meshed with the rack. The sliding direction of the rack is parallel to the sliding direction of the sliding seat 2.2, and the rack is fixedly connected to the sliding seat 2.2. The power component 2.1 drives the gear to rotate, that is, the driving motor drives the gear to rotate, driving the rack and the sliding seat 2.2 to move, thereby controlling the push portion 7 to move back and forth.

[0107] In this embodiment, if Fig.10 As shown, when multiple transmission mechanisms 2.3 share one power component 2.1, the gears 2.36 of each transmission mechanism 2.3 share one driving shaft 2.4, and the driving shaft 2.4 is rotatably arranged on the mounting bracket 1 or the frame 6, and the driving shaft is perpendicular to the sliding direction of the sliding seat, and the gears of each transmission mechanism 2.3 are fixedly connected to the driving shaft; the driving motor constituting the power component 2.1 drives the driving shaft to rotate, thereby driving the gears of each transmission mechanism 2.3 to rotate, and the gears of each transmission mechanism 2.3 drive each sliding seat 2.2 to move synchronously through the corresponding rack.

[0108] In the fifth implementation of this embodiment, Fig.11 As shown, the transmission mechanism 2.3 includes a shift fork 2.34. A waist-shaped hole 2.35 is provided on the shift fork. A pin rod 2.21 matching the waist-shaped hole is provided on the sliding seat 2.2, and the pin rod is inserted into the waist-shaped hole. The power component 2.1 drives the shift fork to rotate. Specifically, the driving motor drives the shift fork to rotate, and the shift fork is fixedly connected to the output shaft of the driving motor. The length of the waist-shaped hole extends radially along the output shaft of the driving motor, and the pin rod is parallel to the output shaft. The driving motor drives the shift fork to rotate back and forth, and the shift fork drives the sliding seat 2.2 to slide through the pin rod, thereby controlling the pushing part 7 to move back and forth. The driving motor controls the moving stroke of the pushing part 7 by controlling the rotation angle of the shift fork.

[0109] In this embodiment, if Fig.11 As shown, when multiple transmission mechanisms 2.3 share one power component 2.1, the shift forks 2.34 of each transmission mechanism 2.3 share one drive shaft 2.4, and the drive shaft 2.4 is rotatably arranged on the mounting bracket 1 or the frame 6, and the drive shaft is perpendicular to the sliding direction of the sliding seat, and the shift forks 2.34 of each transmission mechanism 2.3 are fixedly connected to the drive shaft 2.4; the drive motor constituting the power component 2.1 drives the drive shaft to rotate, thereby driving the shift forks of each transmission mechanism 2.3 to rotate, and then driving each sliding seat 2.2 to move synchronously.

[0110] In a sixth implementation of this embodiment, the transmission mechanism 2.3 includes a cam, and the power component 2.1 drives the cam to rotate. Specifically, the driving motor drives the cam to rotate, and the cam pushes the sliding seat 2.2 to move, thereby controlling the pushing portion 7 to move back and forth.

[0111] In this embodiment, when multiple transmission mechanisms 2.3 share one power component 2.1, the cams of each transmission mechanism 2.3 share one driving shaft, and the driving shaft is rotatably arranged on the mounting bracket 1 or the frame 6. The driving shaft is perpendicular to the sliding direction of the sliding seat, and the cams of each transmission mechanism 2.3 are fixedly connected to the driving shaft; the driving motor constituting the power component 2.1 drives the driving shaft to rotate, thereby driving the cams of each transmission mechanism 2.3 to rotate, and then promoting the synchronous movement of each sliding seat 2.2.

[0112] Specific embodiment 2: The rest of the structure of this embodiment refers to the specific embodiment 1, except that:

[0113] like Figure 3-Figure 5 As shown, an automatic color-changing thread pressure control 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 pressing piece 3.21 and the thread pressing surface 3.22 of each thread pressing component 3.2 in the thread pressing unit 3 (i.e., to detect the pressing force on the embroidery thread 5 between the thread pressing piece 3.21 and the thread pressing surface 3.22). The detection sensor 8 is an existing sensor, such as a force sensor.

[0114] The specific use of the automatic color-changing control line pressure device for an embroidery machine of this embodiment is as follows:

[0115] The line pressure automatic control driving mechanism 2 drives the pushing part 7 to move, so that the pushing part 7 is pressed against the elastic element 3.23, thereby compressing the elastic element 3.23 to adjust the pressing force between the thread pressing piece 3.21 and the thread pressing surface 3.22; in this process, the pressing force between the thread pressing piece 3.21 and the thread pressing surface 3.22 is detected in real time by the detection sensor 8. When the detection sensor 8 detects that the pressing force between the thread pressing piece 3.21 and the thread pressing surface 3.22 reaches the set value, the line pressure automatic control driving mechanism 2 stops driving the pushing part 7, thereby accurately adjusting the pressing force between the thread pressing piece 3.21 and the thread pressing surface 3.22 to ensure the consistency of the tightness of each embroidery thread 5; thus, the accuracy and consistency of the tightness adjustment of each embroidery thread 5 of the embroidery machine can be effectively improved, thereby improving the quality of the embroidery product. At the same time, there is no need to manually adjust the tightness of the embroidery thread 5, so it can well adapt to the use requirements of the current multi-station embroidery machine, adapt to the production rhythm of the current multi-station embroidery machine, and reduce labor costs.

[0116] 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 adjusting the 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.

[0117] 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:

[0118] In one implementation of this embodiment, Figure 3-Figure 5As shown, the detection sensor 8 corresponds to the wire pressing unit 3 one by one. The detection sensor 8 is arranged between the sliding seat 2.2 corresponding to the wire pressing unit 3 and the pushing portion 7. In this way, the pushing portion 7 is against the sliding component 3.24, and 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 sliding seat 2.2 and the pushing portion 7. 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, which effectively reduces the number of detection sensors 8 and reduces costs.

[0119] In the second implementation mode of the present embodiment, the detection sensor 8 corresponds to the pushing portion 7 one by one. The detection sensor 8 is arranged on the corresponding pushing portion 7 at one end (not shown in the figure) facing the wire pressing assembly 3.2. In this way, the pushing portion 7 is against the sliding member 3.24, and 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 7 at one end facing the wire pressing assembly 3.2, so that 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.

[0120] In the third implementation of this embodiment, Figure 6 As shown, the detection sensor 8 corresponds to the wire pressing assembly 3.2 one by one. The detection sensor 8 is arranged between the wire pressing seat 3.27 of the corresponding wire pressing assembly 3.2 and the translation frame 3.1. For example, the detection sensor 8 is fixed on the bracket, and the wire pressing seat 3.27 is fixed on the detection sensor 8, so that the wire pressing seat 3.27 is fixed on the bracket through the detection sensor 8; or the detection sensor 8 is fixed on the bracket, 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 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 sheet 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 against the bracket. In this embodiment, the pushing portion 7 abuts 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.

[0121] In a fourth implementation of the present embodiment, the detection sensor 8 corresponds to the wire pressing assembly 3.2 one by one. The detection sensor 8 is arranged 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 arranged on the sliding part 3.24 of the corresponding wire pressing assembly 3.2 toward one end of the pushing portion 7, or the detection sensor 8 is arranged between the sliding part 3.24 and the elastic element 3.23 of the wire pressing assembly 3.2 (not shown in the figure). In this implementation, the pushing portion 7 is against the sliding part 3.24, and in the process of pushing the sliding part 3.24 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.

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

[0123] In this embodiment, the line pressure automatic control driving mechanism 2 includes a power component 2.1 and a sliding seat 2.2 that is slidably arranged. The power component 2.1 directly drives the sliding seat 2.2 to move. Each line pressing unit 3 corresponds to a sliding seat 2.2. In this embodiment, the sliding seat 2.2 corresponds to the line pressing unit 3 one by one.

[0124] In this embodiment, the driving actuator is an electric cylinder or an electric push rod or a linear module (not shown in the figure).

[0125] Specific embodiment 4: The rest of the structure of this embodiment refers to the specific embodiment 1, except that:

[0126] The line pressure automatic control driving mechanism 2 is an electric cylinder or an electric push rod, that is, the line pressure automatic control driving mechanism 2 is directly composed of an electric cylinder or an electric push rod (not shown in the figure).

[0127] In one implementation of this embodiment, the line pressure automatic control drive mechanism 2 corresponds to the line pressing unit 3 one by one. The pushing portion 7 corresponds to the line pressing unit 3 one by one. The pushing portion 7 is arranged on the end of the telescopic rod of the electric cylinder or the electric push rod. The pushing portion 7 and the telescopic rod of the electric cylinder or the electric push rod can be made separately, and then the pushing portion 7 is connected to the end of the telescopic rod; the pushing portion 7 can also be directly formed by the end of the telescopic rod (no need to make the pushing portion 7 separately). In this implementation, the line pressure automatic control drive mechanism 2 is arranged on the corresponding mounting bracket 1. Of course, the line pressure automatic control drive mechanism 2 can also be arranged on the frame 6 of the embroidery machine.

[0128] In this embodiment, the pushing part 7 and the telescopic rod of the electric cylinder or electric push rod can be made separately, and then the pushing part 7 is connected to the end of the telescopic rod. When working, the telescopic rod of the electric cylinder or electric push rod constituting the line pressure automatic control driving mechanism 2 extends, thereby driving the pushing part 7 to move, and the pushing part 7 compresses the elastic element 3.23 of the corresponding line pressing assembly 3.2 by pushing the sliding part 3.24.

[0129] In this embodiment, the detection sensor 8 corresponds to the pushing portion 7 one by one. The detection sensor 8 is arranged between the corresponding pushing portion 7 and the end of the telescopic rod of the electric cylinder or electric push rod (not shown in the figure). In this way, the pushing portion 7 is against the sliding part 3.24, and in the process of pushing the sliding part 3.24 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.

[0130] 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.

[0131] In the second implementation of this embodiment, each thread pressing unit 3 shares a thread pressure automatic control driving mechanism 2. Each pushing portion 7 is connected as a whole through a connecting piece, and the electric cylinder or electric push rod constituting the thread pressure automatic control driving mechanism 2 is connected to one of the pushing portions 7 or to the connecting piece, and the thread pressure automatic control driving mechanism 2 drives each pushing portion 7 to move synchronously. In this implementation, the thread pressure automatic control driving mechanism 2 is arranged on one of the mounting brackets 1. Of course, the thread pressure automatic control driving mechanism 2 can also be arranged on the frame 6 of the embroidery machine.

[0132] In this embodiment, the specific installation method of the detection sensor 8 can also refer to the second to fourth embodiments of the “specific installation method of the detection sensor 8” in the specific embodiment 1.

[0133] 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, and the difference is that:

[0134] like Figure 2-Figure 4 As shown, an automatic color-changing control line pressure device for an embroidery machine also includes a translation track 1.2 and a translation drive mechanism. The translation track 1.2 is parallel to the moving direction of the needle bar frame 4. The translation frame 3.1 translates along the translation track 1.2.

[0135] In this embodiment, the translation track 1.2 is arranged on the mounting bracket 1, and each mounting bracket 1 is provided with the translation track 1.2. The translation frame 3.1 is slidably arranged on the translation track 1.2 on the corresponding mounting bracket 1. Of course, the translation track 1.2 can also be arranged on the frame 6 of the embroidery machine.

[0136] The translation drive mechanism drives the translation frame 3.1 to move synchronously with the needle bar frame 4 along the translation track 1.2. Specifically,

[0137] In one implementation of this embodiment, the thread pressing unit 3 corresponds to the translation drive mechanism one by one. The translation drive mechanism drives the corresponding translation frame 3.1 to move. The translation drive mechanism is arranged on the corresponding mounting bracket 1. Of course, the translation drive mechanism can also be arranged on the frame 6 of the embroidery machine. In this way, it is convenient to independently layout and apply each thread pressing unit 3 and the translation drive mechanism.

[0138] In the second implementation of this embodiment, Fig.12 As shown, the translation frames 3.1 of each pressing unit 3 share a translation drive mechanism 9, and the translation drive mechanism drives the translation frames 3.1 of each pressing unit 3 to move synchronously. For example, the translation frames 3.1 of each pressing unit 3 are connected as a whole through a connecting element 10, and the translation drive mechanism drives one of the translation frames 3.1, thereby driving the translation frames 3.1 of each pressing unit 3 to move synchronously. The translation drive mechanism is arranged on the frame 6 of the embroidery machine, and of course the translation drive mechanism can also be arranged on one of the mounting brackets 1. In this way, there is no need for each pressing unit 3 to correspond to a translation drive mechanism, which can effectively reduce the number of translation drive mechanisms, thereby further reducing the manufacturing cost.

[0139] The translation drive mechanism adopts the following method:

[0140] The translation drive mechanism is an electric cylinder or an electric push rod or a linear module. In the present embodiment, the translation drive mechanism 9 includes a translation motor, a translation slider and a screw nut drive mechanism arranged on a frame. The translation slider is slidably arranged on the frame, and the sliding direction of the translation slider is parallel to the translation track 1.2. The translation slider is connected to one of the translation frames 3.1. When the translation frames 3.1 of each wire pressing unit 3 share a translation drive mechanism 9, the translation slider can also be connected to the connecting element 10. The nut of the screw nut drive mechanism is connected to the translation slider. The translation motor drives the screw of the screw nut drive mechanism to rotate, driving the translation slider to reciprocate, thereby driving the translation frame 3.1 to move synchronously with the needle bar frame 4. Of course, it should be noted that the translation drive mechanism can also be other translation drive mechanisms on the market.

[0141] Specific embodiment 6: 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, and the difference is that:

[0142] like Figure 7As shown, the translation frame 3.1 is directly fixed on the needle bar frame 4. For example, the translation frame 3.1 is fixed on the needle bar frame 4 by bolts, rivets or welding. In this way, the translation frame 3.1 can move synchronously with the needle bar frame 4, and there is no need to arrange an additional power mechanism to drive the translation frame 3.1 to move synchronously with the needle bar frame 4, which can further reduce the manufacturing cost; at the same time, it is also convenient for actual manufacturing.

[0143] Specific embodiment 7, an embroidery machine, including an automatic color-changing thread pressure control device for the embroidery machine. The specific structure of the automatic thread pressure control device for the embroidery machine refers to any one of the specific embodiments from specific embodiment 1 to specific embodiment 6.

[0144] 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. An automatic color-changing control line pressure device for an embroidery machine, characterized in that: include: The wire pressing unit comprises a translation frame and a plurality of wire pressing components arranged side by side on the translation frame, wherein the wire pressing components comprise an elastic element, a wire pressing surface and a wire pressing sheet, and the wire pressing sheet is pressed against the wire pressing surface under the action of the elastic element; Pushing part; A linear pressure automatic regulating driving mechanism for driving the push part to move; The translation frame moves synchronously with the needle bar frame of the embroidery machine so that the pushing part corresponds to each thread pressing component in turn. The thread pressure automatic control driving mechanism compresses the elastic element of the corresponding thread pressing component by driving the pushing part to move to adjust the pressing force between the corresponding thread pressing piece and the thread pressing surface.

2. The automatic color-changing control line pressure device for an embroidery machine according to claim 1, characterized in that: Also includes: A translation track parallel to the moving direction of the needle bar frame, and the translation frame translates along the translation track; The translation driving mechanism drives the translation frame to move synchronously with the needle bar frame along the translation track.

3. The automatic color-changing control line pressure device for an embroidery machine according to claim 2, characterized in that: There are multiple wire pressing units, and the translation frames of the wire pressing units share a translation driving mechanism, and the translation driving mechanism drives the translation frames of the wire pressing units to move synchronously.

4. The automatic color-changing control line pressure device for an embroidery machine according to claim 2, characterized in that: There are multiple wire pressing units, and the wire pressing units correspond to the translation driving mechanisms one by one. The translation driving mechanisms drive the corresponding translation frames to move.

5. The automatic color-changing control line pressure device for an embroidery machine according to claim 1, characterized in that: The translation frame is directly fixed on the needle bar frame.

6. The automatic color-changing control line pressure device for an embroidery machine according to claim 1, 2, 3, 4 or 5, characterized in that: It also includes a detection sensor, which detects the pressing force between the wire pressing pieces and the wire pressing surface of each wire pressing assembly in the wire pressing unit.

7. The automatic color-changing control line pressure device for an embroidery machine according to claim 1, 2, 3, 4 or 5, characterized in that: The line pressure automatic control driving mechanism includes: A sliding seat is slidably arranged, and the pushing part is arranged on the sliding seat toward the side of the wire pressing assembly; A power component drives the sliding seat to move.

8. The automatic color-changing control line pressure device for an embroidery machine according to claim 7, characterized in that: The line pressure automatic control driving mechanism also includes a transmission mechanism, there are one or more line pressing units, each line pressing unit corresponds to a sliding seat, each sliding seat is provided with a pushing part, and the transmission mechanism corresponds to the sliding seat one by one. The transmission mechanism corresponds to the power component one by one, and the power component drives the corresponding sliding seat to move through the transmission mechanism; Or a plurality of transmission mechanisms share a power component, and the power component drives each sliding seat to move synchronously through the transmission mechanism.

9. The automatic color-changing control line pressure device for an embroidery machine according to claim 8, characterized in that: The transmission mechanism includes: The swing rod is driven by a power component to rotate; A connecting rod has one end hingedly connected to the rocker arm and the other end hingedly connected to the sliding seat.

10. The automatic color-changing control line pressure device for an embroidery machine according to claim 8, characterized in that: The transmission mechanism includes: The power component drives the screw rod to rotate, the sliding direction of the screw rod is parallel to that of the sliding seat, and the screw rod and the sliding seat are connected by bolts.

11. The automatic color-changing control line pressure device for an embroidery machine according to claim 8, characterized in that: The transmission mechanism includes a synchronous belt transmission mechanism, the power component 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 sliding seat, and the synchronous belt of the synchronous belt transmission mechanism is connected to the sliding seat through a connecting piece.

12. The automatic color-changing control line pressure device for an embroidery machine according to claim 8, characterized in that: The transmission mechanism includes a gear and a rack. The gear is meshed with the rack. The power component drives the gear to rotate. The sliding direction of the rack is parallel to the sliding direction of the sliding seat. The rack is fixedly connected to the sliding seat.

13. The automatic color-changing control line pressure device for an embroidery machine according to claim 8, characterized in that: The transmission mechanism comprises a shift fork, a power component drives the shift fork to rotate, a waist-shaped hole is arranged on the shift fork, a pin rod matched with the waist-shaped hole is arranged on the sliding seat, and the pin rod is inserted in the waist-shaped hole.

14. The automatic color-changing control line pressure device for an embroidery machine according to claim 7, characterized in that: It also includes a detection sensor, which detects the pressing force between the wire pressing piece and the wire pressing surface of each wire pressing assembly in the wire pressing unit. The detection sensor is arranged between the sliding seat and the pushing part, or the detection sensor is arranged on the pushing part toward one end of the wire pressing assembly.

15. The automatic color-changing control line pressure device for an embroidery machine according to claim 1, 2, 3, 4 or 5, characterized in that: The line pressure automatic control driving mechanism 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.

16. The automatic color-changing control line pressure device for an embroidery machine according to claim 1, 2, 3, 4 or 5, characterized in that: The wire crimping assembly also includes a wire crimping seat and a guide rod, the guide rod is fixed on the translation frame, and the wire crimping sheet slides along the guide rod; The wire pressing seat is fixed on the translation frame, and the side of the wire pressing seat facing the wire pressing sheet constitutes the wire pressing surface; Or the crimping seat can slide along the guide rod, and the crimping sheet and the crimping seat slide along the guide rod under the action of the elastic element, and the crimping seat is pressed against the translation frame, and the side of the crimping seat facing the crimping sheet constitutes the crimping surface.

17. The automatic color-changing control line pressure device for an embroidery machine according to claim 16, characterized in that: It also includes a detection sensor, which corresponds to the wire crimping assembly one by one, and detects the pressing force between the wire crimping piece and the wire crimping surface of each wire crimping assembly. The detection sensor is arranged between the wire crimping seat and the translation frame of the corresponding wire crimping assembly, or the detection sensor is arranged between the wire crimping piece and the elastic element of the corresponding wire crimping assembly.

18. The automatic color-changing control line pressure device for an embroidery machine according to claim 16, characterized in that: 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.

19. The automatic color-changing control line pressure device for an embroidery machine according to claim 1, 2, 3, 4 or 5, characterized in that: The wire pressing assembly also includes a guide rod, which is fixed on the translation frame. The wire pressing piece slides along the guide rod, and the side surface of the translation frame facing the wire pressing piece constitutes the wire pressing surface.

20. The automatic color-changing control line pressure device for an embroidery machine according to claim 1, 2, 3, 4 or 5, characterized in that: The elastic element is a spring, an elastic sheet or an elastic rubber piece.

21. An embroidery machine, characterized in that: The invention comprises an automatic color-changing line pressure control device for an embroidery machine as described in any one of claims 1 to 20.

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