Embroidery method of embroidery machine

Abstract

The invention discloses an embroidering method of an embroidering machine, which comprises the following steps of: before an embroidering needle is fed for the first time, controlling a movable blade to swing and return to a first return position for the first time; the embroidery needle is controlled to move down for the first time to bring the upper thread to the position below the needle plate, and then the movable blade is controlled to swing back for the second time until the movable blade is completely opened after the embroidery needle moves up for the first time and crosses the needle plate; before the embroidery needle penetrates through the needle plate, the movable blade is controlled to preliminarily swing towards the fixed blade, and the movable blade and the fixed blade are stopped at a preliminary staggered position where the movable blade and the fixed blade are not completely closed; after the embroidering needle passes through the needle plate for the second time, when the embroidering needle is controlled to start for the second time, the movable blade slowly swings towards the fixed blade from the preliminary staggered position until the movable blade and the fixed blade are completely closed to cut off the upper thread end. According to the embroidering method of the embroidering machine, the base thread can be slightly loosened during embroidering by the embroidering machine, and the thread end of the upper thread can be cut off, so that overlong upper thread end is prevented from remaining on an embroidery, and the quality of the embroidery is improved.

Description

Technical Field

[0001] This invention belongs to the field of embroidery machine technology and relates to an embroidery method for an embroidery machine. Background Technology

[0002] Embroidery machines are used to embroider patterns on materials such as fabric and leather. The thread-cutting mechanism of an embroidery machine is used to cut the top and bottom threads after the embroidery is completed. (See reference) Figure 2-5 The thread-cutting mechanism of the embroidery machine includes a mounting base 1, a swingable moving blade 2, a fixed blade 3, and a thread-locking spring 5. A rotatable shaft 4 is mounted on the mounting base 1. The moving blade 2 is mounted on the upper end of the shaft 4. The output end of the external drive mechanism is connected to the shaft 4. During operation, the external drive mechanism drives the moving blade 2 to swing through the shaft 4. The fixed blade 2 is fixed to the mounting base 1 and located on the upper side of the moving blade 2. The thread-locking spring 5 is fixed to the mounting base 1 and located on the lower side of the moving blade 2.

[0003] When the embroidery machine is embroidering, the moving blade 2 and the fixed blade 3 are in an alternating state, such as... Figure 5 As shown, when the embroidery is completed and thread cutting is required, the external drive mechanism drives the moving blade 2 to swing backward and open. After the moving blade 2 is fully opened, it separates from the fixed blade 3. Then, the external drive mechanism drives the moving blade 2 to swing forward. When it swings forward to its final position, the moving blade 2 and the fixed blade 3 interlock and cut the top and bottom threads. At this point, as shown... Figure 5 As shown, the locking spring 5 and the moving blade 2 work together to clamp and lock the bottom thread, thus positioning the bottom thread and preventing it from shifting. This allows the top thread to loop with the bottom thread during the next embroidery, pulling the bottom thread upwards for re-embroidery. However, the bottom thread can easily be clamped too tightly by the locking spring 5 and the moving blade 2. Excessive clamping force on the bottom thread can prevent the top thread from pulling it upwards, causing the embroidery to malfunction and resulting in incomplete embroidery, thus reducing the quality of the embroidery.

[0004] The applicant's prior invention patent application CN202411504604X discloses an embroidery control method for an embroidery machine, which solves the technical problem that the bottom thread is clamped too tightly by the locking spring and the moving blade, preventing it from being pulled by the top thread. However, in actual production, it was found that although the above technical problem was solved, the thread ends of the top thread were sometimes too long during embroidery. These excessively long thread ends remained on the embroidered product, affecting its quality. Summary of the Invention

[0005] The purpose of this invention is to provide an embroidery method for an embroidery machine to solve the technical problem of excessively long thread ends during embroidery.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: an embroidery method using an embroidery machine, comprising the following steps:

[0007] Step S01: Before the embroidery needle goes down for the first time, control the moving blade to swing back to the first return position for the first time. The angle of the first swing back is α.

[0008] Step S02: Control the embroidery needle to make the first stitch to bring the thread under the needle plate. Then, after the embroidery needle makes its first stitch and passes over the needle plate, control the moving blade to swing back for the second time until it is fully open.

[0009] Step S03: Control the embroidery needle to make the second stitch. Before the embroidery needle passes through the needle plate, control the moving blade to swing towards the fixed blade initially, and stop at the initial cross position where the moving blade and the fixed blade are not completely closed.

[0010] Step S04: After the embroidery needle makes its second stitch, when the needle begins its second stitch, the moving blade swings from the initial staggered position to the fixed blade until the moving blade and the fixed blade are completely closed to cut the thread end.

[0011] Furthermore, in step S01, before the embroidery needle makes its first insertion, the embroidery needle is positioned above the embroidery material, and the moving blade and the fixed blade are completely interlocked and closed, in a state of cutting the thread.

[0012] Furthermore, in step S01, the first swing retraction angle α of the moving blade is 0°-30°.

[0013] Furthermore, in step S01, the first swing retraction angle α of the moving blade is 20°.

[0014] Furthermore, in step S02, the embroidery needle is controlled to first pass through the needle plate and bring the thread below the needle plate. Then, when the embroidery needle first starts and passes over the needle plate until it is fully raised to the position, the moving blade is controlled to swing back for the second time until it is fully opened.

[0015] Furthermore, in step S03, the initial swing angle of the moving blade toward the fixed blade is 40°.

[0016] Furthermore, in step S04, when the moving blade swings from the initial staggered position to the fixed blade until the moving blade and the fixed blade are completely closed, the swing angle of the moving blade is 20°.

[0017] Furthermore, in step S04, during the process of the moving blade swinging from the initial staggered position to the fixed blade, the maximum angular velocity ω of the moving blade is ≤0.2 rad / s.

[0018] Furthermore, in step S04, during the process of the moving blade swinging from the initial staggered position to the fixed blade, the maximum angular velocity ω of the moving blade is 0.17 rad / s.

[0019] Furthermore, in step S04, when the embroidery needle is raised to its full position for the second time, the moving blade and the fixed blade are completely closed, thereby cutting off the thread end; after the embroidery needle is raised to its full position for the second time, the embroidery needle is controlled to continue embroidering.

[0020] The beneficial effects of this invention are as follows: The embroidery method of this invention not only slightly loosens the bottom thread when the embroidery machine starts embroidering, but also cuts off the thread ends of the top thread. This solves the technical problem of the bottom thread being clamped too tightly by the locking spring and the moving blade, preventing it from being pulled up by the top thread and causing sparse embroidery. It also solves the technical problem of the top thread ends being too long and affecting the quality of the embroidery. Therefore, when embroidering using the embroidery method of this invention, sparse embroidery is less likely to occur on the embroidery, and excessively long top thread ends can be prevented from remaining on the embroidery, thus improving the quality of the embroidery. Attached Figure Description

[0021] Figure 1 This is a flowchart of the embroidery method of the embroidery machine according to an embodiment of the present invention.

[0022] Figure 2 This is a first perspective view of the wire-cutting mechanism according to an embodiment of the present invention.

[0023] Figure 3 This is a second perspective view of the wire-cutting mechanism according to an embodiment of the present invention.

[0024] Figure 4 yes Figure 3 A magnified view of I.

[0025] Figure 5 This is a top view of the wire-cutting mechanism according to an embodiment of the present invention.

[0026] Figure 6 This is a schematic diagram of the wire-cutting mechanism when the moving blade swings back to its original position for the first time, according to an embodiment of the present invention.

[0027] Figure 7 This is a schematic diagram of the state of the moving blade when it swings back to its original position for the first time, according to an embodiment of the present invention.

[0028] Figure 8 This is a schematic diagram of the wire cutting mechanism when the fixed blade initially oscillates and stops at the initial staggered position according to an embodiment of the present invention.

[0029] Figure 9 This is a schematic diagram of the state of the moving blade when the fixed blade initially oscillates and stops at the initial staggered position according to an embodiment of the present invention.

[0030] Explanation of reference numerals in the attached figures:

[0031] Mounting base 1, moving blade 2, fixed blade 3, rotating shaft 4, locking spring 5, empty space 6. Detailed Implementation

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Reference Figure 2-5 The embroidery machine is equipped with a mounting base 1, which includes a thread-cutting mechanism comprising a moving blade 2 and a fixed blade 3. A rotatable shaft 4 is mounted on the mounting base 1, with the moving blade 2 mounted on its upper end. The shaft 4 is connected to the output end of an external drive mechanism. During operation, the external drive mechanism drives the moving blade 2 to swing via the shaft 4. The fixed blade 3 is fixed to the mounting base 1, located above the moving blade 2. A thread-locking spring 5 is also mounted on the mounting base 1, located below the moving blade 2. A needle plate (not shown in the attached diagram) is mounted on the mounting base 1, positioned above the fixed blade 3, and has needle holes for the embroidery needle to pass through.

[0034] Reference Figure 1 The embroidery method of the embroidery machine in this embodiment includes the following steps:

[0035] The first step involves the moving blade 2 swinging back to slightly loosen the thread. Before the needle makes its first insertion, the needle, moving blade 2, and fixed blade 3 are in their initial positions. At this time, the needle is positioned above the embroidery material on the embroidery frame of the embroidery machine, and the moving blade 2 and fixed blade 3 are completely interlaced and closed, ready to cut the thread. Figure 5 As shown; the embroidery machine begins embroidery, controlling the moving blade 2 along... Figure 6 The first swing in the direction of arrow A returns to the first retraction position (i.e.) Figure 6 The moving blade 2, indicated by the dashed line, swings to... Figure 6 The moving blade 2 is shown by the solid line in the middle. Figure 6 The solid line indicates the position of the moving blade 2 (the first retraction position), slightly loosening the baseline, but not completely loosening it, as shown in the reference. Figure 7 The first swing retraction angle of the moving blade 2 is α, which is designed to be 20°.

[0036] The second step is to fully open the moving blade 2. Control the embroidery needle to first pass through the needle hole of the needle plate and bring the thread below the needle plate. Then, control the embroidery needle to first rise over the needle plate until it is fully raised. At this point, the embroidery needle is above the needle plate. Control the moving blade 2 along... Figure 6 The second swing in the direction of arrow A retracts until fully open. When the moving blade 2 is fully open, its position is... Figure 8 At the point indicated by the dotted line, the moving blade 2 is positioned such that the embroidery needle can pass through the gap 6 between the moving blade 2 and the fixed blade 3.

[0037] Third, the moving blade 2 swings to the initial staggered position to clamp the thread. Control the needle to make a second stitch; before the needle passes through the needle hole of the needle plate, control the moving blade 2 along... Figure 8 Arrow B points towards fixed blade 3, in a rapid initial swing, as shown in the reference image. Figure 9 The initial swing angle is β, which is designed to be 40°. When the moving blade 2 swings to its final position, it stops at the initial staggered position where the moving blade 2 and the fixed blade 3 are not fully closed. At this time, the position of the blade 2 is... Figure 8 At the point indicated by the solid line, the moving blade 2 clamps the face wire with the locking spring 5, but does not cut the face wire.

[0038] Fourth step: The moving blade 2 swings from the initial crossed position to the fully closed position to cut the thread end. After the needle makes its second stitch, control the needle to make its second stitch, while the moving blade 2 moves from the initial crossed position along... Figure 8 The moving blade 2 slowly swings towards the fixed blade 3 in the direction of arrow B. During this slow swing from the initial staggered position towards the fixed blade 3, the maximum angular velocity ω of the moving blade 2 is designed to be 0.17 rad / s. When the embroidery needle passes the needle plate and fully rises to its position, the moving blade 2 and the fixed blade 3 are completely closed. Figure 5 At this point, the thread end is cut, and the moving blade 2 is in the fully closed position. After the embroidery needle passes over the needle plate and is fully raised to its position, the needle is controlled to continue embroidering. In a preferred design, the moving blade 2 moves from the initial staggered position along... Figure 8 The moving blade 2 is slowly swung towards the fixed blade in the direction of arrow B until it is completely closed with the fixed blade 3. The swing angle of the moving blade 2 is designed to be 20°.

[0039] The embroidery method of the embroidery machine of the present invention not only slightly loosens the bottom thread when the embroidery machine starts embroidering, but also cuts off the thread ends of the top thread. This solves the technical problem of the bottom thread being clamped too tightly by the locking spring and the moving blade, making it impossible for the top thread to pull it up, resulting in sparse embroidery. It also solves the technical problem of the top thread being too long during embroidery, which affects the quality of the embroidery. Therefore, when embroidering using the embroidery method of the embroidery machine of the present invention, sparse embroidery is less likely to occur on the embroidery, and excessively long thread ends can be prevented from remaining on the embroidery, thus improving the quality of the embroidery.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for embroidering using an embroidery machine, characterized in that, Includes the following steps: Step S01: Before the embroidery needle goes down for the first time, control the moving blade to swing back to the first return position for the first time. The angle of the first swing back of the moving blade is α. Step S02: Control the embroidery needle to make the first stitch to bring the thread under the needle plate. Then, after the embroidery needle makes its first stitch and passes over the needle plate, control the moving blade to swing back for the second time until it is fully open. Step S03: Control the embroidery needle to make the second stitch. Before the embroidery needle passes through the needle plate, control the moving blade to swing towards the fixed blade initially, and stop at the initial cross position where the moving blade and the fixed blade are not completely closed. Step S04: After the embroidery needle makes its second stitch, when the needle begins its second stitch, the moving blade swings from the initial staggered position to the fixed blade until the moving blade and the fixed blade are completely closed to cut the thread end.

2. The embroidery method according to claim 1, characterized in that, In step S01, before the embroidery needle is inserted for the first time, the embroidery needle is positioned above the embroidery material, and the moving blade and the fixed blade are completely interlocked and closed, in a state of cutting the thread.

3. The embroidery method according to claim 1, characterized in that, In step S01, the first swing retraction angle α of the moving blade is 0°-30°.

4. The embroidery method according to claim 3, characterized in that, In step S01, the first swing retraction angle α of the moving blade is 20°.

5. The embroidery method according to claim 1, characterized in that, In step S02, the embroidery needle is controlled to pass through the needle plate for the first time and bring the thread below the needle plate. Then, when the embroidery needle starts to move over the needle plate for the first time until it is fully raised to the position, the moving blade is controlled to swing back for the second time until it is fully opened.

6. The embroidery method according to claim 1, characterized in that, In step S03, the initial swing angle of the moving blade toward the fixed blade is 40°.

7. The embroidery method according to claim 1, characterized in that, In step S04, when the moving blade swings from the initial staggered position to the fixed blade until the moving blade and the fixed blade are completely closed, the swing angle of the moving blade is 20°.

8. The embroidery method according to claim 1, characterized in that, In step S04, during the process of the moving blade swinging from the initial staggered position to the fixed blade, the maximum angular velocity ω of the moving blade is ≤0.2 rad / s.

9. The embroidery method according to claim 8, characterized in that, In step S04, during the process of the moving blade swinging from the initial staggered position to the fixed blade, the maximum angular velocity ω of the moving blade is 0.17 rad / s.

10. The embroidery method according to claim 1, characterized in that, In step S04, when the embroidery needle is raised to its full position for the second time, the moving blade and the fixed blade are completely closed, thereby cutting off the thread end; after the embroidery needle is raised to its full position for the second time, the needle is controlled to continue embroidering.

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