Automatic control line pressure device of embroidery machine and embroidery machine

Abstract

The utility model discloses an automatic control thread pressure device of an embroidery machine and the embroidery machine, and aims to provide the automatic control thread pressure device which can automatically adjust the pressing force of embroidery threads as required and effectively improve the adjustment accuracy and consistency of the tightness of the embroidery threads so as to improve the quality of embroidery products, reduce the labor cost and improve the production efficiency. The automatic control line pressure device of the embroidery machine and the embroidery machine meet the use requirements of a current multi-station embroidery machine. The device comprises an elastic element; the wire pressing sheet is pressed against the wire pressing surface under the action of the elastic element; and the automatic control line pressure driving mechanism comprises a pushing and pressing part for compressing the elastic element, and the automatic control line pressure driving mechanism compresses the elastic element by driving the pushing and pressing part to move so as to adjust the pressing force between the line pressing sheet and the line pressing surface. An embroidery thread of the embroidery machine passes through the space between the thread pressing sheet and the thread pressing surface and is tightly pressed between the 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 control line pressure device for an embroidery machine and an embroidery machine. Background Art

[0002] With the development of embroidery machines, the number of machine heads on embroidery machines has been increasing. Currently, there are dozens or even hundreds of machine heads in multi-station embroidery machines, and the machine heads are arranged in a row. Each machine head includes a needle bar holder, and a row of embroidery needles is provided on the needle bar holder. The embroidery thread passing through the embroidery needles in the embroidery machine needs to maintain an appropriate tightness, neither too tight nor too loose. If the embroidery thread is too tight, during the embroidery process, the fabric will be pulled loose by the embroidery thread, and even holes will appear under the pulling of the embroidery thread, affecting the quality of the embroidered product. If the embroidery thread is too loose, the embroidery thread of the embroidery pattern will be loose, seriously reducing the quality of the embroidered product.

[0003] To solve the above problems, currently, embroidery machines are provided with wire pressing devices on the needle bar holders. Each embroidery needle corresponds to a wire pressing device. The wire pressing device includes a wire pressing knob. The embroidery thread corresponding to the embroidery needle first passes through the corresponding wire pressing device and then passes through the corresponding embroidery needle. Currently, the wire pressing device adjusts the pressing force of the wire pressing knob on the embroidery thread by manually rotating the wire pressing knob by an operator, thereby adjusting the tightness of the embroidery thread. Currently, the embroidery machine uses a manual wire pressing device 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 deficiencies.

[0004] The tightness of the embroidery thread depends on manual adjustment by the operator. Manual adjustment by humans has problems such as low adjustment efficiency, poor consistency in adjusting the tightness of the embroidery thread, and inability to guarantee the quality of the embroidered product. At the same time, there is also the problem of high labor costs.

[0005] On the other hand, using a wire pressing device to manually adjust the tightness of the embroidery thread is suitable for the case of fewer machine heads (3 - 6 machine heads) in traditional embroidery machines. In traditional embroidery machines with fewer machine heads and a small number of wire pressing devices, the operator can still manually adjust the tightness of the embroidery thread to adapt to the production rhythm. With the development of embroidery machines, there are dozens or even hundreds of machine heads in multi-station embroidery machines, and there are even hundreds or thousands of embroidery needles (the number of wire pressing devices is the same as the number of embroidery needles). In this case, it is simply impossible to adapt to the production rhythm by manually adjusting the tightness of the embroidery thread. Therefore, the current method of using a wire pressing device to manually adjust the tightness of the embroidery thread is becoming increasingly unable to meet the usage requirements of current multi-station embroidery machines. Summary of the Utility Model

[0006] The purpose of the present utility model is to provide an automatic thread pressure control device and an embroidery machine for an embroidery machine, which can automatically adjust the pressing force of the embroidery thread as needed, effectively improve the accuracy and consistency of the adjustment of the tightness of each embroidery thread, thereby improving the quality of the embroidered product, reducing the labor cost, and meeting the use requirements of the current multi-station embroidery machine.

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

[0008] An automatic thread pressure control device for an embroidery machine, comprising:

[0009] An elastic element;

[0010] A thread pressing surface and a thread pressing piece, and the thread pressing piece presses against the thread pressing surface under the action of the elastic element;

[0011] An automatic thread pressure driving mechanism, including a pressing part for compressing the elastic element. The automatic thread pressure driving mechanism compresses the elastic element by driving the pressing part to move, so as to adjust the pressing force between the thread pressing piece and the thread pressing surface. The embroidery thread of the embroidery machine passes between the thread pressing piece and the thread pressing surface, and the embroidery thread is pressed between the thread pressing piece and the thread pressing surface. Based on this, the operator can drive and accurately control the moving stroke of the pressing part through the automatic thread pressure driving mechanism, 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 adjustment of the tightness of each embroidery thread of the embroidery machine can be effectively improved, thereby improving the quality of the embroidered product. At the same time, there is no need to manually adjust the tightness of the embroidery thread, so it can well meet the use requirements of the current multi-station embroidery machine, adapt to the production rhythm of the current multi-station embroidery machine, and reduce the labor cost.

[0012] Preferably, it further includes a bracket and a thread pressing seat. A guide rod is provided on the bracket, and the thread pressing piece slides along the guide rod; the thread pressing seat is fixed on the bracket, and the side surface of the thread pressing seat facing the thread pressing piece constitutes the thread pressing surface. In this way, the embroidery thread is pressed by the cooperation of the thread pressing piece and the thread pressing seat, and the thread pressing seat can be manufactured separately, which is convenient for improving the smoothness of the thread pressing surface in contact with the embroidery thread.

[0013] Preferably, it further includes a bracket and a thread pressing seat. A guide rod is provided on the bracket, and the thread pressing piece slides along the guide rod; the thread pressing seat can slide along the guide rod. The thread pressing piece and the thread pressing seat slide along the guide rod under the action of the elastic element, and the thread pressing seat abuts against the bracket. The side surface of the thread pressing seat facing the thread pressing piece constitutes the thread pressing surface. In this way, the embroidery thread is pressed by the cooperation of the thread pressing piece and the thread pressing seat, and the thread pressing seat can be manufactured separately, which is convenient for improving the smoothness of the thread pressing surface in contact with the embroidery thread.

[0014] Preferably, it further includes a detection sensor for detecting the pressing force between the wire pressing piece and the wire pressing surface. The detection sensor is arranged between the wire pressing seat and the bracket, or between the wire pressing piece and the elastic element, or at one end of the pushing part facing the elastic element. In this way, during the process of the automatic wire pressure driving mechanism adjusting the pressing force between the wire pressing piece and the wire pressing surface, the detection sensor can detect the pressing force between the wire pressing piece and the wire pressing surface in real time. 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 wire pressure driving mechanism stops driving the pushing part, so as to accurately adjust the pressing force between the wire pressing piece and the wire pressing surface and ensure the consistency of the tightness of each embroidery thread.

[0015] Preferably, there is a bracket with a guide rod provided thereon. The wire pressing piece slides along the guide rod, and the side surface of the bracket facing the wire pressing piece constitutes the wire pressing surface. In this way, the wire pressing seat can be omitted, reducing the manufacturing cost.

[0016] 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 arranged 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.

[0017] Preferably, it further includes a detection sensor for detecting the pressing force between the wire pressing piece and the wire pressing surface. In this way, during the process of the automatic wire pressure driving mechanism adjusting the pressing force between the wire pressing piece and the wire pressing surface, the detection sensor can detect the pressing force between the wire pressing piece and the wire pressing surface in real time. 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 wire pressure driving mechanism stops driving the pushing part, so as to accurately adjust the pressing force between the wire pressing piece and the wire pressing surface and ensure the consistency of the tightness of each embroidery thread; effectively avoiding the problem that the adjustment accuracy and consistency of the tightness of the embroidery thread are affected by the processing accuracy of the elastic element.

[0018] Preferably, the automatic wire pressure driving mechanism is arranged on the bracket. The elastic element, the wire pressing surface, the wire pressing piece and the automatic wire pressure driving mechanism are all arranged on the bracket, so that an automatic wire pressure device for an embroidery machine is integrated on the bracket. In this way, during actual application, only by fixing the bracket on the frame of the embroidery machine, the installation of an automatic wire pressure device for an embroidery machine can be completed, facilitating the installation of an automatic wire pressure device for an embroidery machine.

[0019] Preferably, the automatic wire pressure driving mechanism includes:

[0020] A sliding seat arranged in a sliding manner, and the pushing part is arranged on one side of the sliding seat facing the elastic element;

[0021] The driving actuator for driving the sliding seat to slide.

[0022] Preferably, the driving actuator includes:

[0023] A driving motor;

[0024] A swing rod, and the driving motor drives the swing rod to rotate;

[0025] A connecting rod, one end of which is hinged to the swing rod, and the other end of which is hinged to the sliding seat.

[0026] Preferably, the driving actuator includes:

[0027] A driving motor;

[0028] A lead screw, the driving motor drives the lead screw to rotate, the lead screw is parallel to the sliding direction of the sliding seat, and the lead screw is connected to the sliding seat by bolts.

[0029] Preferably, the driving actuator includes a synchronous belt transmission mechanism and a driving motor for driving the synchronous belt transmission mechanism. 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.

[0030] Preferably, the driving actuator includes a driving motor, a gear and a slidably arranged rack. The gear meshes with the rack. The driving motor 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 connected to the sliding seat through a connecting member.

[0031] Preferably, the driving actuator includes a cam and a driving motor for driving the cam to rotate. The cam is in abutting connection with the sliding seat.

[0032] Preferably, the driving actuator includes a fork and a driving motor for driving the fork to rotate. The fork is provided with a waist-shaped hole, and the sliding seat is provided with a pin rod that cooperates with the waist-shaped hole. The pin rod is inserted into the waist-shaped hole.

[0033] Preferably, it further includes a detection sensor. The detection sensor detects the pressing force between the wire pressing piece and the wire pressing surface, and the detection sensor is arranged between the sliding seat and the pressing part. On the one hand, this can facilitate the installation of the detection sensor; on the other hand, 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 control line pressure driving mechanism stops driving the pressing part, so as to accurately adjust the pressing force between the wire pressing piece and the wire pressing surface, ensure the consistency of the tightness of each embroidery thread; effectively avoid the problem of affecting the adjustment accuracy and consistency of the embroidery thread tightness due to the processing accuracy of the elastic element.

[0034] Preferably, the automatic control line pressure driving mechanism is an electric cylinder or an electric push rod, and the pressing part is arranged at the end of the telescopic rod of the electric cylinder or the electric push rod.

[0035] Preferably, the elastic element is a spring, an elastic sheet or an elastic rubber part.

[0036] An embroidery machine includes an automatic control line pressure device for an embroidery machine.

[0037] An embroidery machine includes a plurality of machine heads, each machine head includes a row of embroidery needles, and further includes an automatic control line pressure device for an embroidery machine. At least one machine head in the embroidery machine is provided with the automatic control line pressure device for an embroidery machine, and the embroidery needles in this machine head correspond one by one to the automatic control line pressure device for an embroidery machine.

[0038] The beneficial effects of the present utility model are as follows:

[0039] Firstly, it can automatically adjust the pressing force of the embroidery thread as needed, effectively improving the accuracy and consistency of the adjustment of the tightness of each embroidery thread, thereby improving the quality of the embroidered product.

[0040] Secondly, it can automatically adjust the pressing force of the embroidery thread as needed, so there is no need to manually adjust the tightness of the embroidery thread, which can well meet 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. Description of the Drawings

[0041] Figure 1 is a front view of an embodiment of the automatic control line pressure device for an embroidery machine of the present utility model.

[0042] Figure 2 is Figure 1 a three-dimensional partial structural schematic diagram of the automatic control line pressure device for an embroidery machine in [reference] after the pressing part is separated from the sliding part.

[0043] Figure 3 is Figure 1 a three-dimensional partial structural schematic diagram of the automatic control line pressure device for an embroidery machine in [reference] when the pressing part abuts against the sliding part.

[0044] Figure 4 is a front view of another embodiment of the automatic control line pressure device for an embroidery machine of the present utility model.

[0045] Figure 5 is a front view of a third embodiment of the automatic control line pressure device for an embroidery machine of the present utility model.

[0046] In the figure:

[0047] Bracket 1, guide rail 1.1;

[0048] Automatic control line pressure driving mechanism 2, pushing part 2.1, sliding seat 2.2, driving motor 2.3, swing rod 2.4, connecting rod 2.5, lead screw 2.6;

[0049] Pressing piece 3.1, pressing surface 3.2, elastic element 3.3, sliding member 3.4, limiting block 3.5, guide rod 3.6, pressing seat 3.7;

[0050] Detection sensor 4;

[0051] Embroidery thread 5. Specific implementation mode

[0052] Specific embodiment 1, as Figure 1 、 Figure 2 、 Figure 3 shown, an automatic control line pressure device for an embroidery machine, including an elastic element 3.3, a pressing surface 3.2, a pressing piece 3.1, and an automatic control line pressure driving mechanism 2.

[0053] The pressing piece 3.1 is pressed against the pressing surface 3.2 under the action of the elastic element 3.3. The elastic element 3.3 is a spring or an elastic sheet or an elastic rubber part. In this embodiment, the elastic element 3.3 is a spring.

[0054] The automatic control line pressure driving mechanism 2 includes a pushing part 2.1 for compressing the elastic element 3.3. The automatic control line pressure driving mechanism 2 drives the pushing part 2.1 to move to compress the elastic element 3.3, so as to adjust the pressing force between the pressing piece 3.1 and the pressing surface 3.2. The greater the compression amount of the elastic element 3.3, the greater the pressing force between the pressing piece 3.1 and the pressing surface 3.2. The embroidery thread 5 of the embroidery machine passes between the pressing piece 3.1 and the pressing surface 3.2, and the embroidery thread 5 is pressed between the pressing piece 3.1 and the pressing surface 3.2.

[0055] The specific use of the automatic control line pressure device for an embroidery machine in this embodiment is as follows,

[0056] The automatic control line pressure driving mechanism 2 is used to drive and accurately control the moving stroke of the pushing part 2.1, and then accurately control the compression amount of the elastic element 3.3, so as to accurately adjust the pressing force between the pressing piece 3.1 and the pressing surface 3.2. Therefore, it can effectively improve the accuracy and consistency of the tightness adjustment of each embroidery thread 5 of the embroidery machine, thereby improving the quality of the embroidered product. At the same time, there is no need to manually adjust the tightness of the embroidery thread 5, so it can well meet the use requirements of the current multi-station embroidery machine, adapt to the production rhythm of the current multi-station embroidery machine, and reduce the labor cost.

[0057] Specific embodiment 2, as Figure 1 、 Figure 2 、 Figure 3As shown in the figure, an automatic control line pressure device for an embroidery machine includes an elastic element 3.3, a detection sensor 4, a pressure line surface 3.2, a pressure line piece 3.1, and an automatic control line pressure driving mechanism 2.

[0058] The pressure line piece 3.1 is pressed against the pressure line surface 3.2 under the action of the elastic element 3.3. The elastic element 3.3 is a spring, an elastic sheet, or an elastic rubber part. In this embodiment, the elastic element 3.3 is a spring.

[0059] The automatic control line pressure driving mechanism 2 includes a pushing part 2.1 for compressing the elastic element 3.3. The automatic control line pressure driving mechanism 2 compresses the elastic element 3.3 by driving the pushing part 2.1 to move, so as to adjust the pressing force between the pressure line piece 3.1 and the pressure line surface 3.2. The greater the compression amount of the elastic element 3.3, the greater the pressing force between the pressure line piece 3.1 and the pressure line surface 3.2. The embroidery thread 5 of the embroidery machine passes between the pressure line piece 3.1 and the pressure line surface 3.2, and the embroidery thread 5 is pressed between the pressure line piece 3.1 and the pressure line surface 3.2.

[0060] The detection sensor 4 is used to detect the pressing force between the pressure line piece 3.1 and the pressure line surface 3.2 (that is, to detect the pressing force received by the embroidery thread between the pressure line piece and the pressure line surface). The detection sensor 4 is an existing sensor, such as a force sensor, etc.

[0061] The specific use of an automatic control line pressure device for an embroidery machine in this embodiment is as follows.

[0062] The pushing part 2.1 is driven to move by the automatic control line pressure driving mechanism 2, so that the pushing part 2.1 abuts against the elastic element 3.3, thereby compressing the elastic element 3.3 to adjust the pressing force between the pressure line piece 3.1 and the pressure line surface 3.2; in this process, the detection sensor 4 is used to detect the pressing force between the pressure line piece 3.1 and the pressure line surface 3.2 in real time. When the detection sensor 4 detects that the pressing force between the pressure line piece 3.1 and the pressure line surface 3.2 reaches the set value, the automatic control line pressure driving mechanism 2 stops driving the pushing part 2.1, thereby realizing accurate adjustment of the pressing force between the pressure line piece 3.1 and the pressure line surface 3.2, and ensuring the consistency of the tightness of each embroidery thread 5; thus, it can effectively improve the accuracy and consistency of the tightness adjustment of each embroidery thread 5 of the embroidery machine, thereby improving the quality of the embroidered product. At the same time, there is no need to manually adjust the tightness of the embroidery thread 5, so it can well meet 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.

[0063] In addition, by using the detection sensor 4 to detect the pressing force between the pressure line piece 3.1 and the pressure line surface 3.2 in real time to realize accurate adjustment of the pressing force between the pressure line piece 3.1 and the pressure line surface 3.2, it can also effectively avoid the problem that the accuracy and consistency of the tightness adjustment of the embroidery thread 5 are affected due to the processing accuracy of the elastic element 3.3.

[0064] Specifically, as Figure 1 , Figure 2 , Figure 3 shown, an automatic control line pressure device for an embroidery machine further includes a bracket 1. The bracket 1 is installed on the frame of the embroidery machine or on the needle bar holder of the embroidery machine. A guide rod 3.6 is provided on the bracket 1. The wire pressing piece 3.1 slides along the guide rod 3.6. A guide hole is provided in the middle of the wire pressing piece 3.1, and the guide rod 3.6 passes through the guide hole on the wire pressing piece 3.1. The automatic control line pressure driving mechanism 2 is arranged on the bracket 1.

[0065] A limiting block 3.5 is provided at the end of the guide rod 3.6. A sliding member 3.4 is also provided on the guide rod 3.6. In this embodiment, the sliding member 3.4 is a sliding piece, and the sliding piece slides along the guide rod 3.6. A guide hole is provided in the middle of the sliding piece, and the guide rod 3.6 passes through the guide hole on the sliding piece. The limiting block 3.5, the sliding member 3.4 and the wire pressing piece 3.1 are sequentially distributed along the axial direction of the guide rod 3.6. The elastic element 3.3 is located between the sliding member 3.4 and the wire pressing piece 3.1. The sliding member 3.4 abuts against the limiting block 3.5 under the action of the elastic element 3.3. In this embodiment, the elastic element 3.3 is a spring, and the spring is sleeved on the guide rod 3.6, and both ends of the spring abut between the sliding member 3.4 and the wire pressing piece 3.1.

[0066] The moving direction of the pushing part 2.1 is parallel to the axial direction of the guide rod 3.6. The pushing part 2.1, the sliding member 3.4 and the wire pressing piece 3.1 are sequentially distributed along the axial direction of the guide rod 3.6. The pushing part 2.1 compresses the elastic element 3.3 by pushing the sliding member 3.4.

[0067] The pushing part 2.1 can be connected to the sliding member 3.4 (the pushing part and the sliding member 3.4 are not separated); the pushing part 2.1 and the sliding member 3.4 can also be connected by abutting, and the pushing part 2.1 can be separated from the sliding member 3.4. In this embodiment, the pushing part 2.1 and the sliding member 3.4 are connected by abutting, and the pushing part 2.1 can be separated from the sliding member 3.4. Specifically, a pressing rod through hole is provided on the pushing part 2.1. When the pushing part 2.1 abuts against the sliding member 3.4, the guide rod 3.6 and the limiting block 3.5 can extend into the pressing rod through hole. For example, the pushing part 2.1 is a sleeve, and the inner hole of the sleeve constitutes the pressing rod through hole. Of course, it should be noted that the pushing part 2.1 can also be a pushing member, such as a pressing rod or a pushing block (no pressing rod through hole is provided on the pushing member).

[0068] In an implementation manner of this embodiment, as Figure 1 , Figure 2As shown in the figure, an automatic control line pressure device for an embroidery machine further includes a wire pressing seat 3.7. The wire pressing seat 3.7 is fixed on the bracket 1. For example, the wire pressing seat 3.7 is fixed on the bracket 1 at the root of the guide rod 3.6. The elastic element 3.3, the wire pressing piece 3.1 and the wire pressing seat 3.7 are sequentially distributed along the axial direction of the guide rod 3.6. The side surface of the wire pressing seat 3.7 facing the wire pressing piece 3.1 constitutes the wire pressing surface 3.2. In this way, the embroidery thread 5 is pressed tightly by the cooperation of the wire pressing piece 3.1 and the wire pressing seat 3.7. The wire pressing seat 3.7 can be manufactured separately, which is convenient for improving the smoothness of the wire pressing surface 3.2 in contact with the embroidery thread 5. The structures of the wire pressing seat 3.7 and the wire pressing piece 3.1 can be the same or different. In this embodiment, the wire pressing seat 3.7 and the wire pressing piece 3.1 are symmetrically distributed.

[0069] In the second embodiment of this example, as Figure 1 , Figure 2 shown in the figure, an automatic control line pressure device for an embroidery machine further includes a wire pressing seat 3.7. The wire pressing seat 3.7 can slide along the guide rod 3.6. A guide hole is provided in the middle of the wire pressing seat 3.7, and the guide rod 3.6 passes through the guide hole on the wire pressing seat 3.7. The elastic element 3.3, the wire pressing piece 3.1 and the wire pressing seat 3.7 are sequentially distributed along the axial direction of the guide rod 3.6. The wire pressing piece 3.1 and the wire pressing seat 3.7 slide along the guide rod 3.6 under the action of the elastic element 3.3, and the wire pressing seat 3.7 abuts against the bracket 1. The side surface of the wire pressing seat 3.7 facing the wire pressing piece 3.1 constitutes the wire pressing surface 3.2. In this way, the embroidery thread 5 is pressed tightly by the cooperation of the wire pressing piece 3.1 and the wire pressing seat 3.7. The wire pressing seat 3.7 can be manufactured separately, which is convenient for improving the smoothness of the wire pressing surface 3.2 in contact with the embroidery thread 5. The structures of the wire pressing seat 3.7 and the wire pressing piece 3.1 can be the same or different. In this embodiment, the wire pressing seat 3.7 and the wire pressing piece 3.1 are symmetrically distributed.

[0070] In the third embodiment of this example, the side surface of the bracket 1 facing the wire pressing piece 3.1 constitutes the wire pressing surface 3.2 (not shown in the figure). In this way, the wire pressing seat 3.7 can be omitted, and the manufacturing cost can be reduced.

[0071] In this example, the elastic element 3.3, the wire pressing surface 3.2, the wire pressing piece 3.1 and the automatic control line pressure driving mechanism 2 are all arranged on the bracket 1, so that an automatic control line pressure device for an embroidery machine is integrated on the bracket 1. In this way, during actual application, only the bracket 1 needs to be fixed on the frame of the embroidery machine, and the installation of an automatic control line pressure device for an embroidery machine can be completed, which is convenient for the installation of an automatic control line pressure device for an embroidery machine.

[0072] As Figure 1 , Figure 2 , Figure 3As shown in the figure, the automatic control line pressure driving mechanism 2 includes a sliding seat 2.2 arranged in a sliding manner and a driving actuator for driving the sliding seat 2.2 to slide. The pressing part 2.1 is arranged on one side of the sliding seat 2.2 facing the elastic element 3.3. In this embodiment, a guide rail 1.1 is provided on the bracket 1, and the guide rail 1.1 is parallel to the guide rod 3.6. The sliding seat 2.2 slides along the guide rail 1.1. The driving actuator is arranged on the bracket 1.

[0073] The driving actuator drives the sliding seat 2.2 to slide. Specifically,

[0074] In an implementation manner of this embodiment, as Figure 1 , Figure 2 , Figure 3 shown, the driving actuator includes a driving motor 2.3, a swing rod 2.4 and a connecting rod 2.5. The driving motor 2.3 is drivingly arranged on the bracket 1. The output shaft of the driving motor 2.3 is fixedly connected to the swing rod 2.4, and the driving motor 2.3 drives the swing rod 2.4 to rotate. One end of the connecting rod 2.5 is hinged to the swing rod 2.4, and the other end of the connecting rod 2.5 is hinged to the sliding seat 2.2. The driving motor 2.3 drives the swing rod 2.4 to rotate, and the swing rod 2.4 drives the sliding seat 2.2 to slide through the connecting rod 2.5, thereby controlling the reciprocating movement of the pressing part 2.1. The driving motor 2.3 controls the movement stroke of the pressing part 2.1 by controlling the rotation angle of the swing rod 2.4.

[0075] In the second implementation manner of this embodiment, as Figure 4 shown, the driving actuator includes a driving motor 2.3 and a lead screw 2.6. The driving motor 2.3 is installed on the bracket 1, and the driving motor 2.3 drives the lead screw 2.6 to rotate. The lead screw 2.6 is parallel to the sliding direction of the sliding seat 2.2. The lead screw 2.6 is connected to the sliding seat 2.2 by bolts. The driving motor 2.3 drives the lead screw 2.6 to rotate, thereby controlling the reciprocating movement of the pressing part 2.1.

[0076] In the third implementation manner of this embodiment, the driving actuator includes a synchronous belt transmission mechanism and a driving motor (not shown in the figure) for driving the synchronous belt transmission mechanism. The driving motor is installed on the bracket 1, and the synchronous belt transmission mechanism is arranged on the bracket 1. The transmission direction of the synchronous belt transmission mechanism is parallel to the sliding direction of the sliding seat 2.2. The synchronous belt of the synchronous belt transmission mechanism is connected to the sliding seat 2.2 through a connecting member. The driving motor 2.3 drives the synchronous belt to transmit power, thereby controlling the reciprocating movement of the pressing part 2.1.

[0077] In the fourth implementation mode of this embodiment, the driving actuator includes a driving motor 2.3, a gear, and a rack (not shown in the figure) meshing with the gear. The driving motor 2.3 is installed on the bracket 1. The driving motor 2.3 drives the gear to rotate. The rack is slidably arranged on the frame, and the sliding direction of the rack is parallel to the sliding direction of the sliding seat 2.2. The rack and the sliding seat 2.2 are connected by a connecting member. The driving motor 2.3 drives the gear to rotate, driving the rack to slide, thereby controlling the reciprocating movement of the pressing part 2.1.

[0078] In the fifth implementation mode of this embodiment, the driving actuator includes a cam and a driving motor for driving the cam to rotate. The cam is in contact with and connected to the sliding seat. The driving motor drives the cam to rotate, and the cam pushes the sliding seat to move and cooperates with the action of the elastic element, thereby controlling the reciprocating movement of the pressing part.

[0079] In the sixth implementation mode of this embodiment, the driving actuator includes a fork and a driving motor for driving the fork to rotate. The fork is fixedly connected to the output shaft of the driving motor. The fork is provided with a waist-shaped hole, and the length of the waist-shaped hole extends along the radial direction of the output shaft of the driving motor. The sliding seat is provided with a pin rod cooperating with the waist-shaped hole. The pin rod is parallel to the output shaft, and the pin rod is inserted into the waist-shaped hole. The driving motor 2.3 drives the fork to rotate back and forth, and the fork drives the sliding seat to slide through the pin rod, thereby controlling the reciprocating movement of the pressing part. The driving motor 2.3 controls the moving stroke of the pressing part by controlling the rotation angle of the fork.

[0080] In the seventh implementation mode of this embodiment, the driving actuator is an electric cylinder, an electric push rod, or a linear module (not shown in the figure).

[0081] The automatic control line pressure driving mechanism 2 in the specific embodiment one is the same as that in the specific embodiment two, and reference can be made to the automatic control line pressure driving mechanism 2 in the specific embodiment two.

[0082] The detection sensor 4 is used to detect the pressing force between the wire pressing piece 3.1 and the wire pressing surface 3.2. The specific installation of the detection sensor 4 is as follows.

[0083] In one implementation mode of this embodiment, as Figure 1 , Figure 2 , Figure 3 shown, the detection sensor 4 is arranged between the sliding seat 2.2 and the pressing part 2.1. In this way, when the pressing part 2.1 abuts against the sliding member 3.4 and compresses the elastic element 3.3 by pushing the sliding member 3.4, the detection sensor 4 can detect the pressing force between the wire pressing piece 3.1 and the wire pressing surface 3.2 in real time.

[0084] In the second implementation mode of this embodiment, as Figure 5As shown, the detection sensor is disposed between the wire pressing seat and the bracket. For example, the detection sensor is fixed on the bracket 1, and the wire pressing seat 3.7 is fixed on the detection sensor, so that the wire pressing seat 3.7 is fixed on the bracket 1 through the detection sensor; or the detection sensor is fixed on the bracket 1, and the wire pressing seat 3.7 slides along the guide rod 3.6 under the action of the elastic element 3.3, and the wire pressing seat 3.7 abuts against the detection sensor; or the detection sensor is fixed on one side of the wire pressing seat facing away from the wire pressing piece, and the wire pressing seat 3.7 slides along the guide rod 3.6 under the action of the elastic element 3.3, and the detection sensor abuts against the bracket 1. In this embodiment, during the process of the pushing portion 2.1 abutting against the sliding member 3.4 and compressing the elastic element 3.3 by pushing the sliding member 3.4, the detection sensor 4 can detect the pressing force between the wire pressing piece 3.1 and the wire pressing surface 3.2 in real time.

[0085] In the second embodiment of this embodiment, the detection sensor 4 is disposed at one end of the pushing portion 2.1 facing the elastic element 3.3; or the detection sensor 4 is disposed at one end of the sliding member 3.4 facing the pushing portion 2.1 (not shown in the figure). Thus, during the process of the pushing portion 2.1 abutting against the sliding member 3.4 and compressing the elastic element 3.3 by pushing the sliding member 3.4, the detection sensor 4 can detect the pressing force between the wire pressing piece 3.1 and the wire pressing surface 3.2 in real time.

[0086] In the fourth embodiment of this embodiment, the detection sensor is disposed between the wire pressing piece and the elastic element, or the detection sensor is disposed between the sliding member and the elastic element (not shown in the figure). In this embodiment, during the process of the pushing portion 2.1 abutting against the sliding member 3.4 and compressing the elastic element 3.3 by pushing the sliding member 3.4, the detection sensor 4 can detect the pressing force between the wire pressing piece 3.1 and the wire pressing surface 3.2 in real time.

[0087] Specific Embodiment Three, the rest of the structure of this embodiment refers to Specific Embodiment Two, the difference is that

[0088] The automatic wire pressure control driving mechanism 2 is an electric cylinder or an electric push rod, that is, the automatic wire pressure control driving mechanism 2 is directly composed of an electric cylinder or an electric push rod (not shown in the figure). The automatic wire pressure control driving mechanism 2 is installed on the bracket 1. The pushing portion 2.1 is disposed at the end of the telescopic rod of the electric cylinder or the electric push rod. The pushing portion and the telescopic rod of the electric cylinder or the electric push rod can be separately manufactured, and then the pushing portion is connected to the end of the telescopic rod; the pushing portion can also be directly formed by the end of the telescopic rod (no additional pushing portion needs to be manufactured). In this embodiment, the pushing portion and the telescopic rod of the electric cylinder or the electric push rod can be separately manufactured, and then the pushing portion is connected to the end of the telescopic rod.

[0089] During specific operation, the telescopic rod of the electric cylinder or electric push rod that constitutes the automatic control line pressure driving mechanism 2 extends, thereby driving the movement of the pressing part 2.1. The pressing part 2.1 compresses the elastic element 3.3 by pushing the sliding member 3.4.

[0090] In this embodiment, the detection sensor 4 is specifically installed as follows.

[0091] In one implementation manner of this embodiment, the detection sensor 4 is arranged between the pressing part 2.1 and the end of the telescopic rod of the electric cylinder or electric push rod (not shown in the figure). In this way, when the pressing part 2.1 abuts against the sliding member 3.4 and compresses the elastic element 3.3 by pushing the sliding member 3.4, the detection sensor 4 can detect the pressing force between the wire pressing piece 3.1 and the wire pressing surface 3.2 in real time.

[0092] Of course, in this embodiment, the specific installation method of the detection sensor can also refer to the second to fourth implementation manners of the "specific installation method of the detection sensor" in the specific embodiment two.

[0093] Specific embodiment four, an embroidery machine, includes a plurality of machine heads and an automatic control line pressure device for the embroidery machine. The specific structure of the automatic control line pressure device for the embroidery machine refers to any one of the specific embodiments from specific embodiment one to specific embodiment three.

[0094] Each machine head includes a row of embroidery needles. At least one machine head in the embroidery machine is provided with the above-mentioned automatic control line pressure device for the embroidery machine. The embroidery needles in this machine head correspond one-to-one with the automatic control line pressure device for the embroidery machine, that is, in each machine head provided with the automatic control line pressure device for the embroidery machine, the embroidery needles in this machine head correspond one-to-one with the automatic control line pressure device for the embroidery machine. The embroidery thread 5 first passes between the wire pressing piece 3.1 and the wire pressing surface 3.2, and then passes through the corresponding embroidery needle.

[0095] The above are only the preferred embodiments of the present invention, and do not impose any limitations on the present invention. Any simple modification, change, and equivalent transformation made to the above embodiments according to the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. An automatic thread pressure control device for an embroidery machine, characterized in that: include: Elastic element (3.3); A wire pressing surface (3.2) and a wire pressing sheet (3.1), wherein the wire pressing sheet (3.1) is pressed against the wire pressing surface (3.2) under the action of the elastic element (3.3); The automatic control line pressure driving mechanism (2) comprises a pushing portion (2.1) for compressing the elastic element (3.3). The automatic control line pressure driving mechanism (2) compresses the elastic element (3.3) by driving the pushing portion (2.1) to move, thereby adjusting the pressing force between the line pressing sheet (3.1) and the line pressing surface (3.2).

2. The automatic thread pressure control device for an embroidery machine according to claim 1, characterized in that: It also includes a bracket (1) and a wire pressing seat (3.7), wherein a guide rod (3.6) is provided on the bracket (1), and the wire pressing sheet (3.1) slides along the guide rod (3.6); The wire pressing seat (3.7) is fixed on the bracket (1), and the side surface of the wire pressing seat (3.7) facing the wire pressing sheet (3.1) constitutes the wire pressing surface (3.2); Alternatively, the wire pressing seat (3.7) can slide along the guide rod (3.6), and the wire pressing sheet (3.1) and the wire pressing seat (3.7) slide along the guide rod (3.6) under the action of the elastic element (3.3), and the wire pressing seat (3.7) is pressed against the bracket (1), and the side surface of the wire pressing seat (3.7) facing the wire pressing sheet (3.1) constitutes the wire pressing surface (3.2).

3. The automatic thread pressure control device for an embroidery machine according to claim 1, characterized in that: It also comprises a bracket (1), the bracket (1) is provided with a guide rod (3.6), the wire pressing piece (3.1) slides along the guide rod (3.6), and the side surface of the bracket (1) facing the wire pressing piece (3.1) constitutes the wire pressing surface (3.2).

4. The automatic thread pressure control device for an embroidery machine according to claim 2, characterized in that: It also includes a detection sensor (4), the detection sensor (4) detecting the pressing force between the wire pressing piece (3.1) and the wire pressing surface (3.2), the detection sensor (4) being arranged between the wire pressing seat (3.7) and the bracket (1), or the detection sensor (4) being arranged between the wire pressing piece (3.1) and the elastic element (3.3), or the detection sensor (4) being arranged on one end of the pushing portion (2.1) facing the elastic element (3.3).

5. The automatic thread pressure control device for an embroidery machine according to any one of claims 2 to 4, characterized in that: A limit block (3.5) is provided at the end of the guide rod (3.6), and a sliding component (3.4) is also provided on the guide rod (3.6); the limit block (3.5), the sliding component (3.4) and the wire pressing piece (3.1) are sequentially distributed along the axial direction of the guide rod (3.6); the elastic element (3.3) is located between the sliding component (3.4) and the wire pressing piece (3.1); and the pushing portion (2.1) compresses the elastic element (3.3) by pushing the sliding component (3.4).

6. An automatic thread pressure control device for an embroidery machine according to any one of claims 1 to 3, characterized in that: It also includes a detection sensor (4), which detects the pressing force between the wire pressing sheet (3.1) and the wire pressing surface (3.2).

7. An automatic thread pressure control device for an embroidery machine according to any one of claims 1 to 3, characterized in that: The automatic control line pressure driving mechanism (2) comprises: A sliding seat (2.2) that is slidably arranged, wherein the pushing portion (2.1) is arranged on a side of the sliding seat (2.2) that faces the elastic element (3.3); A driving actuator that drives the sliding seat (2.2) to slide.

8. The automatic thread pressure control device for an embroidery machine according to claim 7, characterized in that: The driving actuator comprises: Drive motor; The swing rod is driven by a driving motor to rotate the swing rod; 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 sliding seat (2.2).

9. The automatic thread pressure control device for an embroidery machine according to claim 7, characterized in that: The driving actuator comprises: Drive motor; The lead screw is driven by a driving motor to rotate, the sliding directions of the lead screw and the sliding seat (2.2) are parallel, and the lead screw and the sliding seat (2.2) are connected by bolts.

10. The automatic thread pressure control device for an embroidery machine according to claim 7, characterized in that: The driving actuator comprises a synchronous belt transmission mechanism and a driving motor for driving the synchronous belt transmission mechanism; the transmission direction of the synchronous belt transmission mechanism is parallel to the sliding direction of the sliding seat (2.2); the synchronous belt of the synchronous belt transmission mechanism is connected to the sliding seat (2.2) via a connecting piece.

11. The automatic thread pressure control device for an embroidery machine according to claim 7, characterized in that: The driving actuator comprises a driving motor, a gear and a slidably arranged rack, the gear meshing with the rack, the driving motor drives the gear to rotate, the sliding direction of the rack is parallel to the sliding direction of the sliding seat (2.2), and the rack is connected to the sliding seat (2.2) via a connecting piece.

12. The automatic thread pressure control device for an embroidery machine according to claim 7, characterized in that: The driving actuator comprises a cam and a driving motor for driving the cam to rotate, and the cam is abutted and connected to the sliding seat (2.2).

13. The automatic thread pressure control device for an embroidery machine according to claim 7, characterized in that: The driving actuator comprises a shift fork and a driving motor for driving the shift fork to rotate, the shift fork is provided with a waist-shaped hole, the sliding seat (2.2) is provided with a pin rod that matches the waist-shaped hole, and the pin rod is inserted into the waist-shaped hole.

14. The automatic thread pressure control device for an embroidery machine according to claim 7, characterized in that: It also includes a detection sensor (4), which detects the pressing force between the wire pressing sheet (3.1) and the wire pressing surface (3.2), and the detection sensor (4) is arranged between the sliding seat (2.2) and the pushing portion (2.1).

15. The automatic thread pressure control device for an embroidery machine according to any one of claims 1 to 4, characterized in that: The automatic control line pressure drive mechanism (2) is an electric cylinder or an electric push rod, and the pushing portion (2.1) is arranged on the end of a telescopic rod of the electric cylinder or the electric push rod.

16. The automatic thread pressure control device for an embroidery machine according to any one of claims 1 to 4, characterized in that: The elastic element (3.3) is a spring or an elastic sheet or an elastic rubber piece.

17. An embroidery machine, characterized in that: The invention comprises an automatic thread pressure control device for an embroidery machine as described in any one of claims 1 to 16.

18. An embroidery machine, comprising a plurality of machine heads, each of which comprises a row of embroidery needles, characterized in that: It also includes an embroidery machine automatic thread pressure control device as described in any one of claims 1-16, at least one head of the embroidery machine is provided with the embroidery machine automatic thread pressure control device, and the embroidery needle in the head corresponds one to one to an embroidery machine automatic thread pressure control device.

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