A gold sheet pushing method and a computerized embroidery machine

Abstract

The present application discloses a sequin push method and a computer embroidery machine, the method comprising: obtaining pattern information of an embroidery pattern plate, the pattern information comprising sequin pattern information, the sequin pattern information comprising sequin pattern information from P1 to P n Sequin pattern information, n is a natural number greater than 1, P n The gold flake pattern information is represented by n gold flakes connected in sequence; according to P i The sequin pattern determines the rotation angle of the driving motor of the sequin pushing device, P i For P1 to P n Any one of the following: a driving motor drives the shift fork swing rod of the sequin pushing device, and the shift fork swing rod of the sequin pushing device swings along a first direction, and then swings along a second direction to push the sequin chain to the embroidery needle of the computer embroidery machine; wherein the first direction is opposite to the second direction. The method of the present application can realize the pushing of different quantities of sequins.

Description

Technical Field

[0001] The present disclosure generally relates to the field of embroidery technology, specifically to the field of computer embroidery technology, and particularly to a gold flake pushing method and a computer embroidery machine. Background Art

[0002] In the medical field, a computer embroidery machine is the most advanced embroidery machine of the contemporary era. It can achieve high speed and high efficiency in traditional manual embroidery and can also achieve the embroidery of tube beads and gold flakes.

[0003] The embroidery of gold flakes is realized through a gold flake pushing device. The gold flake pushing device needs to cut the continuously conveyed gold flakes one by one with a cutter to embroider the gold flakes on the fabric.

[0004] However, the gold flake pushing device can only push one gold flake each time. But in actual use, it is necessary to alternately embroider two gold flakes and one gold flake, which cannot be achieved by the prior art. Summary of the Invention

[0005] Based on this, in view of the above technical problems, it is necessary to provide a gold flake pushing method and a computer embroidery machine. By using the method of the present application, the pushing of gold flakes with different quantities can be achieved.

[0006] In a first aspect, a gold flake pushing method is provided, which is applicable to the gold flake pushing device of a computer embroidery machine. The method includes: obtaining a corner mapping table; obtaining the pattern information of an embroidery pattern plate, where the pattern information includes gold flake pattern information, and the gold flake pattern information includes P1 gold flake pattern information to Pn gold flake pattern information, n is a natural number greater than 1, and the Pn gold flake pattern information represents n successively connected gold flakes; determining the rotation angle of the drive motor of the gold flake pushing device according to the Pi gold flake pattern, where Pi is any one of P1 to Pn; the drive motor drives the fork swing rod of the gold flake pushing device, and the fork swing rod of the gold flake pushing device swings the rotation angle along a first direction, and then swings the rotation angle along a second direction to push the gold flake chain to the embroidery needle of the computer embroidery machine; wherein, the first direction is opposite to the second direction.

[0007] In a second aspect, a computerized embroidery machine is provided, including a gold flake pushing device. The gold flake pushing device includes: a first acquisition unit for acquiring a corner mapping table; a second acquisition unit for acquiring pattern information of an embroidery pattern plate, where the pattern information includes gold flake pattern information, and the gold flake pattern information includes P1 gold flake pattern information to Pn gold flake pattern information, n being a natural number greater than 1, and the Pn gold flake pattern information represents n successively connected gold flakes; a determination unit for determining the rotation angle of the drive motor of the gold flake pushing device according to the Pi gold flake pattern, where Pi is any one of P1 to Pn; a gold flake chain determination unit for driving the fork swing rod of the gold flake pushing device by the drive motor, and the fork swing rod of the gold flake pushing device swings the rotation angle along a first direction, and then swings the rotation angle along a second direction to push the gold flake chain to the embroidery needle of the computerized embroidery machine; where the first direction is opposite to the second direction.

[0008] In the prior art, the embroidery of gold flakes is realized by a gold flake pushing device. The gold flake pushing device needs to cut the continuously conveyed gold flakes one by one with a cutter to embroider the gold flakes on the fabric.

[0009] However, the gold flake pushing device can only push one gold flake each time. But in actual use, it is necessary to alternately embroider two gold flakes and one gold flake, which cannot be realized by the prior art.

[0010] Compared with the method of the prior art, the method of the present application can determine the rotation angle of the drive motor of the gold flake pushing device according to the Pi gold flake pattern, that is, different numbers of gold flakes correspond to different rotation angles of the drive motor. The drive motor drives the fork swing rod of the gold flake pushing device, and the fork swing rod of the gold flake pushing device swings the rotation angle along a first direction, and then swings the rotation angle along a second direction to push the corresponding gold flake chain (a chain formed by different numbers of gold flakes) to the embroidery needle of the computerized embroidery machine. Therefore, by using the method of the present application, the pushing of gold flakes with different numbers can be realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] By reading the detailed description of the non-limiting embodiments with reference to the following drawings, other features, objects and advantages of the present application will become more obvious:

[0012] Figure 1 It is a flowchart of the gold flake pushing method provided by the embodiment of the present application;

[0013] Figure 2 It is the corner mapping table provided by the embodiment of the present application;

[0014] Figure 3 It is a schematic diagram of the gold flake pushing device when embroidering the P1 gold flake pattern provided by the embodiment of the present application Figure 1 ;

[0015] Figure 4 isFigure 3 Cross-sectional view in the A-A direction;

[0016] Figure 5 is Figure 3 Cross-sectional view in the B-B direction;

[0017] Figure 6 Schematic of the gold flake pushing device when embroidering the P1 gold flake pattern provided by the embodiment of the present application Figure 2 ;

[0018] Figure 7 Schematic of the gold flake pushing device when embroidering the P1 gold flake pattern provided by the embodiment of the present application Figure 3 ;

[0019] Figure 8 Schematic of the gold flake pushing device when embroidering the P2 gold flake pattern provided by the embodiment of the present application Figure 1 ;

[0020] Figure 9 Schematic of the gold flake pushing device when embroidering the P2 gold flake pattern provided by the embodiment of the present application Figure 2 ;

[0021] Figure 10 Schematic of the gold flake pushing device when embroidering the P3 gold flake pattern provided by the embodiment of the present application Figure 1 ;

[0022] Figure 11 Schematic of the gold flake pushing device when embroidering the P3 gold flake pattern provided by the embodiment of the present application Figure 2 ;

[0023] Figure 12 Application scenario of the gold flake pushing method provided by the embodiment of the present application Figure 1 ;

[0024] Figure 13 Schematic diagram of an embroidery stencil provided by the embodiment of the present application. Detailed implementation manners

[0025] The present application will be further described in detail below in conjunction with the embodiments and the drawings. It can be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than limiting the invention. Additionally, it should be noted that for the convenience of description, only the parts related to the invention are shown in the drawings.

[0026] It should be noted that, without conflict, the embodiments and the features of the embodiments in the present application can be combined with each other. The present application will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0027] In the prior art, an embroidery device can embroider embroidery beads on a pattern on the surface of a fabric. Specifically, the embroidery device can fix the fabric in an embroidery frame and then complete the embroidery of one version of embroidery beads. After that, the embroidery frame can first release the fabric to allow the fabric to move a certain distance, and then clamp the fabric, and then complete the embroidery of the next version of embroidery beads.

[0028] However, due to the different tightness degrees of each piece of fabric, when embroidering embroidery beads after fixing the fabric in the embroidery frame, the position of the embroidery beads may not coincide with the position of the pattern, reducing the accuracy of embroidery.

[0029] The gold flake pushing method provided by the present application can be applied to a gold flake pushing device of a computer embroidery machine, such as Figure 12 and Figure 13 in the application scenarios shown. Figure 12 In the application scenario shown, the computer embroidery machine includes a machine head 200, a gold flake pushing device 100 mounted on the machine head 200, and an embroidery frame 400. The embroidery frame 400 is used to fix the fabric 300 and embroider a gold flake tape 50 on the fabric 300.

[0030] Specifically, as Figure 3 shown, the gold flake pushing device 100 includes a driving motor (not shown), a fork swing rod 10, a fork 20, a torsion spring 30, a film passing base 40, and a cutter (not shown).

[0031] The driving motor drives the fork swing rod 10. A hoop structure 11 is provided at the first end of the fork swing rod 10, and a protrusion 12 is provided near the second end of the fork swing rod 10. The output shaft of the driving motor is connected to the fork swing rod 10 through the hoop structure 11, and the first end 21 of the fork 20 is hinged to the second end of the fork swing rod 10 through a pin.

[0032] The fork 20 is provided with a channel penetrating through its interior, and the channel extends along the length direction of the fork 20 until the second end 22 of the fork 20.

[0033] The torsion spring 30 is sleeved on the above-mentioned pin, the first end 31 of the torsion spring 30 is connected to the above-mentioned protrusion 12, and the second end 32 of the torsion spring 30 passes through the above-mentioned channel and exposes out of the channel, that is, the second end 32 of the torsion spring 30 protrudes from the second end 22 of the fork 20.

[0034] As Figures 3 - 5As shown in the figure, the chip passing base 40 includes a bottom plate 41 and a pressing plate 42. The cross-section of the bottom plate 41 is generally C-shaped. The pressing plate 42 is arranged in the groove of the bottom plate 41 and is flush with the upper end of the bottom plate 41 to form a cavity structure for accommodating the gold chip belt 50. A long upper hole 421 is opened on the pressing plate 42, and a long lower hole 411 is opened on the bottom plate 41. The long lower hole 411 is arranged opposite to the long upper hole 421. The gold chip belt 50 is arranged along the extension direction of the cavity structure, and the inner holes of the gold chips of the gold chip belt 50 are always opposite to the upper and lower long holes.

[0035] The cutting knife is arranged corresponding to the end of the bottom plate 41 for outputting the gold chips. Specifically, as Figure 7 , Figure 9 and Figure 11 shown, the gold chip belt 50 is output from the right end of the bottom plate 41, that is, part of the gold chips of the gold chip belt 50 protrude from the bottom plate 41. The cutting knife can cut off the part of the gold chip belt 50 protruding from the bottom plate 41, thereby forming a gold chip chain.

[0036] Combined with Figure 3 , Figure 6 and Figure 7 , the working principle of the gold chip pushing device 100 is described as follows: S1. The output shaft of the driving motor rotates by an angle a in the positive direction, and then drives the fork swing rod 10 to swing from the Figure 3 position to the Figure 6 position. At the same time, the fork swing rod 10 drives the torsion spring 30 to twist, and the second end 32 of the torsion spring 30 is hidden in the channel of the fork 20; S2. The fork swing rod 10 drives the fork 20 to swing from the Figure 3 position to the Figure 6 position, and the second end 22 of the fork 20 moves from the inner hole of the gold chip 51 to the inner hole of the gold chip 52; S3. The output shaft of the driving motor rotates by an angle a again in the reverse direction, and then drives the fork swing rod 10 to swing from the Figure 6 position to the Figure 7 position. At the same time, the fork swing rod 10 drives the torsion spring 30 to return to the initial state, and the second end 32 of the torsion spring 30 protrudes from the channel of the fork 20. At this moment, the second end 32 of the torsion spring 30 is located in the inner hole of the gold chip 52; S4., the fork swing rod 10 drives the fork 20 to swing from the Figure 6 position to the Figure 7 position, and the second end 22 of the fork 20 pushes the gold chips 52 and 51 to move. Then, the gold chip 52 moves a distance of one gold chip along the gold chip pushing direction. At this moment, the gold chip 51 protrudes from the bottom plate 41, and the gold chip 51 is located at the embroidery position of the computer embroidery machine. Refer to Figure 12 shown; S5. The embroidery needle 201 of the machine head 200 embroiders the gold chip 51. After the embroidery of the gold chip 51 is completed, the cutting knife acts, and the gold chip 51 is separated from the gold chip 52, and the gold chip 51 is separated from the gold chip belt 50.

[0037] The working principle of the gold sheet pushing device 100 of the present application is introduced above. The following combines Figure 13 an embroidery pattern plate to introduce a gold sheet pushing method of the present application. Figure 1 is a flowchart of the gold sheet pushing method provided by the embodiment of the present application. The method includes: S101. Obtain the pattern information of the embroidery pattern plate. The pattern information includes gold sheet pattern information. The gold sheet pattern information includes P1 gold sheet pattern information to Pn gold sheet pattern information, where n is a natural number greater than 1, and the Pn gold sheet pattern information represents n consecutively connected gold sheets.

[0038] It should be noted that the pattern information of the embroidery pattern plate can be transmitted to a computer embroidery machine, and the control system of the computer embroidery machine identifies the pattern information. The pattern information includes gold sheet pattern information. The gold sheet pattern information includes P1 gold sheet pattern information, P2 gold sheet pattern information, P3 gold sheet pattern information,..., Pi gold sheet pattern information,..., Pn gold sheet pattern information.

[0039] The P1 gold sheet pattern information indicates the existence of one gold sheet; the P2 gold sheet pattern information indicates the existence of two gold sheets, and the two gold sheets are connected to each other; the P3 gold sheet pattern information indicates the existence of three gold sheets, and the three gold sheets are connected in sequence; the Pi gold sheet pattern information indicates the existence of i gold sheets, and the i gold sheets are connected in sequence; the Pn gold sheet pattern information indicates the existence of n gold sheets, and the n gold sheets are connected in sequence.

[0040] It should be noted that before step 101, there is also a step of obtaining a corner mapping table.

[0041] Obtaining the corner mapping table includes the following steps: S201. Determine the number of gold sheets in each gold sheet pattern information from the P1 gold sheet pattern information to the Pn gold sheet pattern information.

[0042] It can be understood that the P1 gold sheet pattern information indicates the existence of one gold sheet; the P2 gold sheet pattern information indicates the existence of two gold sheets; the P3 gold sheet pattern information indicates the existence of three gold sheets; the Pi gold sheet pattern information indicates the existence of i gold sheets; the Pn gold sheet pattern information indicates the existence of n gold sheets.

[0043] S202. Set the rotation angle of the corresponding drive motor according to the number of gold sheets in each gold sheet pattern information from the P1 gold sheet pattern information to the Pn gold sheet pattern information. One number of gold sheets corresponds to one rotation angle of the drive motor.

[0044] It can be understood that as Figure 2 shown, the rotation angle of the drive motor corresponding to one gold sheet is a; the rotation angle of the drive motor corresponding to two gold sheets is b; the rotation angle of the drive motor corresponding to three gold sheets is c; the rotation angle of the drive motor corresponding to i gold sheets is i; the rotation angle of the drive motor corresponding to n gold sheets is n.

[0045] S203. Generate a corner mapping table based on all the gold piece pattern information and their corresponding corners, as Figure 2 shown, Figure 2 which shows a corner mapping table.

[0046] S102. Determine the rotation angle of the drive motor of the gold piece pushing device according to the Pi gold piece pattern, where Pi is any one of P1 to Pn.

[0047] It can be understood that the control system of the computer embroidery machine identifies the number of gold pieces in the Pi gold piece pattern and obtains the corresponding rotation angle of the drive motor according to the above-mentioned corner mapping table.

[0048] Specifically, it includes the following steps: obtaining the number of gold pieces i in the Pi gold piece pattern; determining the rotation angle i of the drive motor according to the corner mapping table.

[0049] Step 103. The drive motor drives the fork swing rod of the gold piece pushing device, and the fork swing rod of the gold piece pushing device swings by a rotation angle in the first direction, and then swings by the above rotation angle in the second direction to push the gold piece chain to the embroidery needle of the computer embroidery machine; wherein, the first direction is opposite to the second direction.

[0050] It should be noted that the control system of the computer embroidery machine obtains the magnitude of the rotation angle of the drive motor, the control system sends control information to the drive motor, the output shaft of the drive motor rotates by the above rotation angle, and then drives the fork swing rod 10 and the fork 20 to act.

[0051] Refer to Figure 3 . Figure 6 And Figure 7 shown, specifically, it includes the following steps: the fork swing rod swings by an angle a in the first direction (clockwise), and then swings by an angle a in the second direction (counterclockwise); the fork swing rod 10 drives the fork 20 to push a gold piece to the embroidery needle of the computer embroidery machine, that is, the gold piece 51 to the embroidery needle of the computer embroidery machine; the cutter cuts off the gold piece 51 and the gold piece 52, and the gold piece 51 is separated from the gold piece strip 50 to generate a gold piece chain, and this gold piece chain includes 1 gold piece.

[0052] Compared with the method of the prior art, the method of the present application can determine the rotation angle of the drive motor of the gold piece pushing device according to the Pi gold piece pattern, that is, different numbers of gold pieces correspond to different rotation angles of the drive motor. The drive motor drives the fork swing rod of the gold piece pushing device, and the fork swing rod of the gold piece pushing device swings by the above rotation angle in the first direction, and then swings by the rotation angle in the second direction to push the corresponding gold piece chain (the chain formed by different numbers of gold pieces) to the embroidery needle of the computer embroidery machine. Therefore, by using the method of the present application, the pushing of gold pieces with different numbers can be realized.

[0053] Combined with Figure 13Description: Embroidery of P1 gold flake pattern, P2 gold flake pattern, and P3 gold flake pattern. The P1 gold flake pattern, P2 gold flake pattern, and P3 gold flake pattern are embroidered successively one after another.

[0054] First, for the embroidery of the P1 gold flake pattern, the P1 gold flake pattern embroidery is the starting position. The fork swing rod swings by an angle a in the first direction (clockwise), and then swings by an angle a in the second direction (counterclockwise). The fork swing rod 10 drives the fork 20 to push a gold flake to the embroidery needle of the computer embroidery machine, and the cutter cuts off the gold flake 51 and the gold flake 52. The gold flake 51 detaches from the gold flake strip 50 to generate a gold flake chain, and this gold flake chain includes 1 gold flake.

[0055] Next, embroider the J1 plain embroidery pattern and the J2 plain embroidery pattern in the plain embroidery method.

[0056] Then, for the embroidery of the P2 gold flake pattern, the fork swing rod swings by an angle b in the first direction (clockwise), and the embroidery frame 400 of the computer embroidery machine moves a preset distance in the third direction. The third direction is perpendicular to the gold flake pushing direction. Then, the fork swing rod swings by an angle b in the second direction (counterclockwise), and the embroidery frame 400 of the computer embroidery machine moves the above preset distance in the fourth direction. The fourth direction is opposite to the third direction. At the current moment, the fork swing rod 10 drives the fork 20 to push two gold flakes to the embroidery needle of the computer embroidery machine, and the cutter cuts off the gold flake 52 and the gold flake 53. The gold flakes 51 and 52 detach from the gold flake strip 50 to generate a gold flake chain, and this gold flake chain includes 2 gold flakes.

[0057] Next, embroider the J3 plain embroidery pattern in the plain embroidery method.

[0058] Finally, for the embroidery of the P3 gold flake pattern, the fork swing rod swings by an angle c in the first direction (clockwise), and the embroidery frame 400 of the computer embroidery machine moves a preset distance in the third direction. The third direction is perpendicular to the gold flake pushing direction. Then, the fork swing rod swings by an angle c in the second direction (counterclockwise), and the embroidery frame 400 of the computer embroidery machine moves the above preset distance in the fourth direction. The fourth direction is opposite to the third direction. At the current moment, the fork swing rod 10 drives the fork 20 to push three gold flakes to the embroidery needle of the computer embroidery machine, and the cutter cuts off the gold flake 53 and the gold flake 54. The gold flakes 51, 52, and 53 detach from the gold flake strip 50 to generate a gold flake chain, and this gold flake chain includes 3 gold flakes.

[0059] It should be noted that the above preset distance is greater than or equal to the radius of the gold flake.

[0060] The present application also provides a computerized embroidery machine, which includes a gold flake pushing device. The gold flake pushing device: a first acquisition unit for acquiring a corner mapping table; a second acquisition unit for acquiring the pattern information of an embroidery pattern plate, the pattern information including gold flake pattern information, and the gold flake pattern information including P1 gold flake pattern information to Pn gold flake pattern information, where n is a natural number greater than 1, and the Pn gold flake pattern information represents n successively connected gold flakes; a determination unit for determining the rotation angle of the drive motor of the gold flake pushing device according to the Pi gold flake pattern, where Pi is any one of P1 to Pn; a gold flake chain determination unit for driving the fork swing rod of the gold flake pushing device by the drive motor, and the fork swing rod of the gold flake pushing device swings the rotation angle along a first direction, and then swings the rotation angle along a second direction to push the gold flake chain to the embroidery needle of the computerized embroidery machine; wherein, the first direction is opposite to the second direction.

[0061] The above embodiments only express several implementation manners of the present application, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several deformations and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A gold flake pushing method, applicable to the gold flake pushing device of a computer embroidery machine, characterized in that, the method includes: Obtaining a corner mapping table, including: Determining the number of gold flakes in each gold flake pattern information from P1 gold flake pattern information to Pn gold flake pattern information; Setting the rotation angle of the corresponding drive motor according to the number of gold flakes in each gold flake pattern information from P1 gold flake pattern information to Pn gold flake pattern information, one rotation angle of the drive motor corresponding to one such number of gold flakes; Generating a corner mapping table according to all the gold flake pattern information and their corresponding rotation angles; Obtaining the pattern information of the embroidery pattern plate, the pattern information including gold flake pattern information, the gold flake pattern information including P1 gold flake pattern information to Pn gold flake pattern information, n being a natural number greater than 1, and the Pn gold flake pattern information representing n successively connected gold flakes; Determining the rotation angle of the drive motor of the gold flake pushing device according to the Pi gold flake pattern, where Pi is any one of P1 to Pn; The drive motor drives the fork swing rod of the gold flake pushing device, and the fork swing rod of the gold flake pushing device swings the rotation angle in the first direction, and then swings the rotation angle in the second direction to push the gold flake chain to the embroidery needle of the computer embroidery machine; wherein, the first direction is opposite to the second direction.

2. The gold flake pushing method according to claim 1, characterized in that, the determining the rotation angle of the drive motor of the gold flake pushing device according to the Pi gold flake pattern, where Pi is any one of P1 to Pn, includes: Obtaining the number of gold flakes in the Pi gold flake pattern; Determining the rotation angle of the drive motor corresponding to the number of gold flakes in the Pi gold flake pattern according to the corner mapping table.

3. The gold flake pushing method according to claim 1, characterized in that, the drive motor drives the fork swing rod of the gold flake pushing device, and the fork swing rod of the gold flake pushing device swings the rotation angle in the first direction, and then swings the rotation angle in the second direction to push the gold flake chain to the embroidery needle of the computer embroidery machine; wherein, the first direction is opposite to the second direction, includes: The fork of the gold flake pushing device pushes out i successively connected gold flakes to the embroidery needle of the computer embroidery machine; The embroidery needle of the computer embroidery machine sews one of the i successively connected gold flakes; The cutter of the gold flake pushing device cuts off the i successively connected gold flakes from the gold flake belt to generate the gold flake chain.

4. The gold flake pushing method according to claim 1, characterized in that, For the embroidery of the gold flake pattern, before swinging the rotation angle in the second direction, the embroidery frame of the computer embroidery machine moves a preset distance in the third direction, the third direction being perpendicular to the gold flake pushing direction, and after swinging the rotation angle in the second direction, the embroidery frame of the computer embroidery machine moves the preset distance in the fourth direction, the fourth direction being opposite to the third direction.

5. The gold flake pushing method according to claim 4, characterized in that, the preset distance is at least equal to the radius of the gold flake.

6. A computer embroidery machine, characterized in that, it includes a gold flake pushing device, and the gold flake pushing device: The first acquisition unit acquires a corner mapping table, including: Determine the number of gold flakes for each gold flake pattern information from the gold flake pattern information of P1 to Pn; Set the rotation angle of the corresponding drive motor according to the number of gold flakes for each gold flake pattern information from the gold flake pattern information of P1 to Pn, and one rotation angle of the drive motor corresponds to one such number of gold flakes; Generate a corner mapping table according to all the gold flake pattern information and their corresponding rotation angles; The second acquisition unit is used to acquire the pattern information of the embroidery template, and the pattern information includes gold flake pattern information, and the gold flake pattern information includes the gold flake pattern information from P1 to Pn, where n is a natural number greater than 1, and the gold flake pattern information of Pn represents n gold flakes connected in sequence; The determination unit is used to determine the rotation angle of the drive motor of the gold flake pushing device according to the Pi gold flake pattern, and Pi is any one of P1 to Pn; The gold flake chain determination unit is used for the drive motor to drive the fork swing rod of the gold flake pushing device, and the fork swing rod of the gold flake pushing device swings the rotation angle along the first direction, and then swings the rotation angle along the second direction to push the gold flake chain to the embroidery needle of the computer embroidery machine; wherein, the first direction is opposite to the second direction.

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