CN111074444A - Thread trimming control method and device capable of controlling length of thread end of embroidery machine surface thread - Google Patents
Thread trimming control method and device capable of controlling length of thread end of embroidery machine surface thread Download PDFInfo
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- CN111074444A CN111074444A CN202010098291.8A CN202010098291A CN111074444A CN 111074444 A CN111074444 A CN 111074444A CN 202010098291 A CN202010098291 A CN 202010098291A CN 111074444 A CN111074444 A CN 111074444A
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- D05—SEWING; EMBROIDERING; TUFTING
- D05C—EMBROIDERING; TUFTING
- D05C11/00—Devices for guiding, feeding, handling, or treating the threads in embroidering machines; Machine needles; Operating or control mechanisms therefor
- D05C11/20—Arrangements for cutting the needle or lower threads
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Abstract
A thread trimming control method and a thread trimming control device with controllable length of a thread end of a face thread of an embroidery machine belong to the technical field of embroidery machines. The method comprises the step S01 of controlling the rotating shuttle to drive the upper thread to rotate and controlling the thread-clasping retainer to hang the upper thread which is out of the rotating shuttle on the thread-clasping retainer so as to realize the retention of the upper thread; step S02, controlling the moving stroke of the frame with embroidery material according to the required thread cutting length of the upper thread to obtain thread ends of the upper thread with different lengths; step S03, controlling the thread cutting movable knife to hook the bottom thread and the upper thread to the position of the coiling bottom thread and the upper thread; step S04, controlling the frame with embroidery material to move to the original position; and step S05, controlling the thread cutter to cut the bottom thread and the upper thread. The device is realized according to the method. Based on the structure of the existing embroidery machine, the upper thread end is hooked only by the hook knife, the thread trimming length is controlled by controlling the stroke of the frame with embroidery materials, and the consistency of the thread end length of the upper thread after trimming is high.
Description
Technical Field
The invention belongs to the technical field of embroidery machines, and particularly relates to a trimming control method and a trimming control device for controlling the length of a thread head on an embroidery machine surface.
Background
At present, in the embroidery machine industry, when an embroidery finishes one graphic unit and begins to embroider another graphic unit, the upper thread and the lower thread below a cloth cover need to be cut, as the embroidery units are numerous, the thread needs to be cut frequently, the thread end left by the thread cutting is positioned below the cloth cover, and the length of the thread end is directly related to the quality of the embroidery and the stability of the embroidery after the thread cutting. An upper thread driven by a needle of a general embroidery machine penetrates through a cloth cover and is hooked by a rotating shuttle and is divided into a front strand and a rear strand, the front strand and the rear strand form a coil, a bottom thread in the rotating shuttle is wrapped by the rotating shuttle, after knotting is completed, one strand of the upper thread and the bottom thread are cut off by scissors, and a thread head formed by the cut off upper thread and the bottom thread is positioned below the cloth cover. The length of the thread end of the scissors is not controlled, so that the cut thread end is too short, and the phenomenon that the thread is off due to knotting of the bottom thread during embroidering is caused.
Based on the above problems, the applicant proposed a method for determining the length of the cut line by using a hook knife in 2016, 7, 24. That is, the invention patent application CN201610611193.3 discloses a high-precision thread trimming method of an embroidery machine, and specifically discloses a method comprising: the needle of the embroidery machine drives an upper thread to penetrate through a cloth cover on the needle plate to form two strands of upper threads, the two strands of upper threads are separated through a shuttle point of the rotating shuttle and drive the upper threads to rotate to form a coil at a thread buckling hook, the upper threads on the right side of the thread buckling hook are pulled by the hook knife, the hook knife returns to a pause position to determine the lengths of the two strands of upper threads under the cloth cover, and then the thread cutting positions of the scissors relative to the upper threads and the bottom threads are determined, and the thread cutting length is accurately determined. Although, this method has improved thread cutting accuracy compared to the conventional thread cutting method. However, in the long-term use process, the applicant finds that the thread elasticity is different due to different embroidery thread materials or thicknesses, the resistance force on the hook knife is changed due to the fact that the thread wool is blocked by the upper threads, when the hook knife pulls the embroidery thread to a certain distance for thread cutting, the consistency of the length of the thread ends of the upper threads after thread cutting still has a problem, and particularly, the difference of the length of the thread ends of the upper threads after thread cutting is larger along with the increase of the number of machine heads; and because the hooking cutter is a very thin steel sheet, some fragile lines are easy to be broken or broken after being pulled by the hooking cutter, so that the problem of needle lifting and line breaking after line cutting is caused.
Disclosure of Invention
The invention provides a thread trimming control method and a thread trimming control device with controllable length of a thread end of a surface of an embroidery machine, aiming at the problems in the prior art.
The invention is realized by the following technical scheme:
the invention discloses a thread trimming control method with controllable length of a thread end of a face thread of an embroidery machine, which comprises the following steps:
step S01, controlling the rotating shuttle to drive the upper thread to rotate, and controlling the thread-fastening retainer to hang the upper thread which is pulled out of the rotating shuttle on the thread-fastening retainer so as to realize the retention of the upper thread;
step S02, controlling the moving stroke of the frame with embroidery material according to the required thread cutting length of the upper thread to obtain thread ends of the upper thread with different lengths;
step S03, controlling the thread cutting movable knife to hook the bottom thread and the upper thread to the position of the coiling bottom thread and the upper thread;
step S04, controlling the frame with embroidery material to move to the original position;
and step S05, controlling the thread cutter to cut the bottom thread and the upper thread.
The method does not need to improve the structure of the existing embroidery machine, and based on the existing embroidery machine, the method controls different actions of the mechanism on the embroidery machine to realize the thread trimming with controllable thread end length. Due to different embroidery requirements, embroidery threads with different materials and thicknesses and embroidery materials with different densities and thicknesses are needed, and the length of the thread end is different according to the requirements. The method can obtain the upper thread ends with different lengths by controlling the moving stroke of the frame with the embroidery material, and the consistency of the lengths of the upper thread ends after thread trimming is high.
Preferably, step S03 and step S04 can be performed simultaneously; alternatively, step S03 is performed after step S04.
Preferably, the method of the present invention further comprises: before the step S01, the required facial thread cutting length and the moving stroke of the frame with embroidery material corresponding to the required facial thread cutting length one by one are stored in advance.
Preferably, the bottom thread and the upper thread are hooked to the position of the bottom thread of the loop, and are limited in a space defined by the movable thread cutting knife and the fixed thread cutting knife.
Preferably, the step S02 includes: and controlling the moving stroke of the belt embroidery frame moving in the Y-axis direction according to the required length of the thread trimming of the upper thread.
Preferably, the movement stroke of the embroidery frame in the Y-axis direction is a negative movement stroke.
Preferably, the step S02 is performed by controlling the frame with embroidery to move to elongate the head of the upper thread after the main shaft drives the rotary shuttle to take the upper thread and before the main shaft drives the rotary shuttle to hook the upper thread and hang on the thread-fastening retainer to the parking position; or after the main shaft drives the rotating shuttle to take the thread and before the main shaft stops waiting for thread cutting.
Preferably, the step S02 is performed before or after the spindle driving rotary hook picks up the upper thread and the rotating spindle hooked on the thread take-up holder reaches the highest position of the thread take-up lever.
Preferably, the operation of controlling the movement of the tape embroidery frame to the home position in step S04 is performed in a state where the spindle is stopped or idled.
Preferably, the method of the present invention further comprises the step of releasing the upper thread by the thread retainer; the step of releasing the upper thread by the thread-clasping retainer is carried out after the thread-cutting movable cutter hooks the bottom thread and the upper thread to the positions of the coiling bottom thread and the upper thread; or the step of releasing the upper thread by the thread catcher is carried out after the cutting blade cuts the upper thread.
Preferably, the method further comprises a step S06 of controlling the hook cutter to hook up the cut upper thread end and store the hooked cut upper thread end in the upper thread clamp.
A thread trimming control apparatus for controlling the length of a thread end of a face thread of an embroidery machine, comprising:
the upper thread holding module is used for controlling the rotating shuttle to drive the upper thread to rotate and controlling the thread buckling holder to hang the upper thread which is separated from the rotating shuttle on the thread buckling holder so as to realize the holding of the upper thread;
the upper thread length control module is used for controlling the moving stroke of the frame with the embroidery material according to the required upper thread cutting length so as to obtain the lengths of upper thread ends with different lengths;
and the thread cutting module is used for controlling the movable cutter to hook the bottom thread and the upper thread to the position of the defined bottom thread and the position of the upper thread after controlling the frame with the embroidery material to move to the required upper thread cutting length, and controlling the thread cutting cutter to cut the bottom thread and the upper thread after controlling the frame with the embroidery material to move to the original position.
The thread trimming control device is arranged in the existing embroidery machine, and thread trimming with controllable thread ends is realized based on the method.
Preferably, the thread cutting control device further comprises a storage module, which is used for storing the required facial thread cutting length and the moving stroke of the frame with the embroidery material, which corresponds to the required facial thread cutting length in a one-to-one manner.
Preferably, the thread trimming control device further comprises a thread hooking module for controlling the hooking knife to hook up the trimmed thread end of the upper thread and accommodate the hooked thread end in the upper thread clamp.
Preferably, the upper thread length control module controls the movement of the frame with the embroidery material to elongate the thread head, and is arranged after the main shaft drives the rotating shuttle to take the thread and is completed before the rotating main shaft which is used for hooking the upper thread by the main shaft driving rotating shuttle and hung on the thread buckling retainer reaches the parking position; or after the main shaft drives the rotating shuttle to take the thread and before the main shaft stops waiting for thread cutting.
Preferably, the operation of controlling the frame with the embroidery material to move to the original position in the thread cutting module is performed in a state that the main shaft is stopped or idles.
Preferably, the moving stroke is a negative moving stroke of the embroidery frame moving in the Y-axis direction.
The invention has the following beneficial effects:
according to the thread trimming control method and the thread trimming control device for the embroidery machine surface thread end, the structure of the existing embroidery machine is not required to be changed, the thread end length of the required surface thread end is controlled by controlling the moving stroke of the frame with the embroidery material, and the length adjustment of the surface thread end can be adaptively carried out according to different embroidery requirements and aiming at embroidery threads with different materials and thicknesses and embroidery materials with different densities and thicknesses; in addition, the lengths of the upper threads below the multiple machine heads are uniformly adjusted by utilizing the moving stroke of the frame with the embroidery material, compared with a method for hooking the lengths of the upper threads by utilizing the hooking knives corresponding to the multiple machine heads, the lengths of the upper thread ends after thread cutting are better in consistency, and the quality of the embroidery is greatly improved.
Drawings
FIG. 1 is a flowchart of a thread trimming control method for controlling the thread end of a face thread of an embroidery machine according to the present invention;
fig. 2 is a block diagram illustrating a structure of a thread trimming control apparatus for controlling a thread end of an embroidery machine according to the present invention.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
When the embroidery finishes one graphic unit and starts to embroider another graphic unit, the upper thread and the bottom thread below the cloth cover need to be subjected to thread cutting treatment. The length of the bottom thread affects the quality of the embroidery. For example, when the bottom thread and the upper thread are too short, the bottom thread and the upper thread are not easy to be knotted, and even thread falling is caused; when the ground thread and the upper thread are too long, on one hand, the thread end is too long to affect the appearance of the embroidery, and on the other hand, the too long thread end interferes with the embroidery operation of another adjacent image unit.
Based on the above problems, the prior application provides a method for determining the length of the cut line by using a hook cutter. The hook knife not only has the function of hooking the upper thread, but also has the function of lengthening the upper thread. For a single machine head, the method can meet the effect that the length of the thread head is accurately controllable. However, for multiple heads, there is a difference in the consistency and loading of the thread heads and thread-hooking devices under the multiple heads. Because, the synchronism of the actions of hooking the upper thread and lengthening the same length of the upper thread by the hook knife of each machine head is different, and finally the consistency of the lengths of the thread ends is different. Further, the hook knife hooks and elongates the upper thread to keep the upper thread in a tense state, the elasticity of the embroidery thread is different due to different materials and thicknesses of the embroidery thread, and the thread ends finally cut are different due to different embroidery threads if any embroidery thread is elongated by the same length. When the machine head is expanded to a plurality of machine heads, the difference of the lengths of the thread ends among the machine heads is more obvious, and the hook knife is a thin steel sheet, so that the thread is easily broken or broken after some fragile threads are pulled by the hook knife, and the problem of needle lifting and thread breaking after thread cutting is more prominent.
Therefore, the applicant provides a method and a device for flexibly adjusting the length of the thread end by having high consistency of the length of the thread end of the upper thread after thread trimming and adapting to different embroidery requirements.
Referring to fig. 1, the present invention relates to a thread trimming control method for controlling the length of a thread end of an embroidery machine, including:
step S01, controlling the rotating shuttle to drive the upper thread to rotate, and controlling the thread-fastening retainer to hang the upper thread which is pulled out of the rotating shuttle on the thread-fastening retainer so as to realize the retention of the upper thread;
step S02, controlling the moving stroke of the frame with embroidery material according to the required thread cutting length of the upper thread to obtain thread ends of the upper thread with different lengths;
step S03, controlling the thread cutting movable knife to hook the bottom thread and the upper thread to the position of the coiling bottom thread and the upper thread;
step S04, controlling the frame with embroidery material to move to the original position;
and step S05, controlling the thread cutter to cut the bottom thread and the upper thread.
The control method is executed by a control device on the embroidery machine on the premise of not changing the prior embroidery machine.
In step S01, the spindle is controlled to drive the rotating shuttle to hook and rotate the upper thread, and the thread-retaining device is controlled to approach the rotating shuttle to intercept the upper thread, so that the upper thread coming out of the rotating shuttle is hung on the thread-retaining device to form and retain the state of the coil. The upper thread hung on the thread-fastening retainer is a triangle-like coil, and the bottom thread is positioned in the middle of the triangle-like coil. The coil can be divided into a left side waist line segment, a right side waist line segment and a bottom side line segment. The upper thread can be divided into a part to be cut (namely a left waist thread segment) which can be hooked by the thread cutter by the thread-buckling retainer and a part to be cut (namely a right waist thread segment) which can be hooked by the thread hooking cutter and sent to the thread clamp part (namely a right waist thread segment), so that the upper thread can be effectively cut, and the influence on the next graphic unit embroidery caused by the wrong cutting can be avoided. And because the bottom line is positioned in the middle of the triangular coil, the upper line and the bottom line can be clearly distinguished, and the upper line and the bottom line can be conveniently and accurately cut off. After the facial line of the step is kept, the subsequent frame moving action can be carried out, and the facial line is prevented from being separated along with the movement of the frame when the frame is moved, so that the facial line cannot be cut.
In step S02, in order to obtain the upper thread ends of different lengths, the moving stroke of the frame with embroidery material is controlled. The moving stroke of the frame with the embroidery material is mainly used for determining the length of the required upper thread trimming. The required length of the upper thread cutting line is stored in the control device in advance according to the requirement. The method of the present invention further comprises: before the step S01, the required facial thread cutting length and the moving stroke of the frame with embroidery material corresponding to the required facial thread cutting length one by one are stored in advance. For example, the required embroidery thread for rope embroidery stores the required upper thread cutting length and the moving stroke of the frame to be embroidered; for another example, the required embroidery thread for flat embroidery is stored with the required upper thread cutting length and the moving stroke of the frame to be embroidered.
The direction of the frame with the embroidery material is moved to realize that the embroidery threads (including the upper threads and the bottom threads) can be elongated. For example, the movement stroke of the embroidery frame in the X-axis direction can be controlled to be a positive X-axis direction or a negative X-axis direction. For another example, the moving stroke of the embroidery frame in the Y-axis direction may be controlled to be a positive Y-axis direction or a negative Y-axis direction. For another example, the movement stroke of the controllable frame with embroidery on the XY coordinate system may be a movement stroke of the first quadrant, a movement stroke of the second quadrant, a movement stroke of the third quadrant, or a movement stroke of the fourth quadrant. The X-axis direction refers to a direction in which the plurality of heads are located, and the Y-axis direction refers to a direction perpendicular to the X-axis direction. The positive direction of the Y axis is the same as the direction of the front surface of the machine needle (namely the direction facing the machine station operator), and the negative direction of the Y axis is the same as the direction of the back surface of the machine needle (namely the front of the machine station operator). The positive direction of the X axis is the right direction of the machine station operator, and the negative direction of the X axis is the left direction of the machine station operator. The movement stroke is preferably a negative movement stroke of the embroidery frame in the Y-axis direction from the viewpoint of easy movement and control.
The step S02 of controlling the frame with embroidery material to move to elongate the head of the upper thread may be performed after the spindle driving rotating shuttle picks up the upper thread and before the spindle driving rotating shuttle picks up the upper thread and hangs on the thread catcher reaches the parking position. During the time when the spindle reaches the parking position, the thread take-up lever takes up the thread to the uppermost position, and then the spindle reaches the parking position. When the take-up lever reaches the highest position, the upper thread is tensioned, and if the upper thread is elongated by controlling the movement of the embroidery frame, certain stay resistance exists, and even the upper thread is easy to break. For this purpose, it is preferable that the operation of controlling the movement of the frame with the embroidery material to elongate the head of the upper thread is performed after the main shaft driving rotary hook picks up the upper thread and before or when the main shaft driving rotary hook picks up the upper thread and the main shaft is hooked on the thread take-up holder to the highest position of the thread take-up lever. In addition, the movement of the embroidery frame to elongate the upper thread end can be set during the period from the take-up lever reaching the highest position to the main shaft reaching the parking position. The process can also realize the moving operation of the frame with the embroidery materials, but the effect is poorer than that of the scheme.
In the step S02, the movement of the frame with embroidery material to elongate the head of the upper thread may be controlled to be completed after the spindle drives the rotary shuttle to take the thread and before the spindle stops waiting for cutting the thread. In this way, the main shaft stops in the non-stop position, namely, the main shaft finishes the moving stroke of the frame with the embroidery materials before stopping waiting for thread cutting after driving the rotating shuttle to take the thread. In this embodiment, the main shaft needs to be controlled to stop, and then the subsequent steps such as frame moving and the like are performed until the thread cutting is completed. After the thread cutting is finished, the upper thread end is hooked by the hook knife, and the main shaft needs to be rotated back to the parking position. In the former embodiment, the main shaft is rotated all the time, and after the thread trimming is completed, the main shaft is rotated to the parking position. Compared with the two embodiments, the former has higher working efficiency.
In step S03, the thread trimmer generally includes a movable thread trimmer blade and a stationary thread trimmer blade. The thread cutting movable knife thread hooking part is provided with a V-shaped opening and is used for hooking the bottom thread and the upper thread. When the upper thread is hung on the thread-buckling retainer, a state of retaining a coil is formed, the thread-cutting movable knife hooks the upper thread, and only the upper thread and the bottom thread of the left waist thread section are hooked. And then hooking the hooked bottom thread and the upper thread to the positions of the delineating bottom thread and the upper thread. The position of the bottom line and the surface line is defined by the position of the bottom line and the surface line, and the process is defined by a space defined by the movable trimming knife and the fixed trimming knife. The space is not limited to a closed space as long as the bobbin thread and the surface coil can be secured inside. The common cutting edge of the thread cutting stationary knife is flat, the space enclosed by the thread cutting stationary knife and the thread cutting movable knife with the V-shaped opening limits the deviation of the bottom thread in the radial direction to a certain degree, and the space does not limit the elongation and the recovery of the upper thread and the bottom thread in the time length direction when the upper thread and the bottom thread move along with the frame with the embroidery material.
The method also comprises a setting step of actions of the thread trimmer in different time periods. For example, when to control the movable thread cutting knife, such as opening, returning, stopping and closing of the thread cutting knife. In addition, the angles of opening, returning, pausing and closing can be set.
In step S04, when the belt embroidery frame is moved back, the embroidery thread is loosened. The thread cutting movable knife picks the bottom thread and the upper thread to the position of the circled bottom thread and the upper thread, so the embroidery thread can be reliably pulled back. Therefore, the step of hooking the bottom thread and the upper thread to the position of the bottom thread and the upper thread by the thread cutting movable knife is preferably arranged before the step of moving the frame with the embroidery material to the original position. Further, step S03 and step S04 may be performed in synchronization with each other. In principle, the step of hooking the lower thread and the upper thread to the position of the loop lower thread and the upper thread may be performed after the step of moving the band embroidery frame to the original position. As long as the frame with the embroidery materials is ensured to move to the original position, the bottom thread and the upper thread can be smoothly hooked. In practice, the hooking failure condition with a certain probability is found.
The stroke of moving the frame with the embroidery material to the original position can be set according to the stroke of moving the frame with the embroidery material from the original position to the position with the required upper thread trimming length, for example, the stroke of moving the frame with the embroidery material to the original position is set as the reverse stroke of moving the frame with the embroidery material from the original position to the position with the required upper thread trimming length.
The operation of controlling the movement of the frame with the embroidery material to the home position in step S04 is performed in a state where the main shaft is stopped or idled. In one embodiment, the frame to be embroidered is moved to the home position while the main shaft is in the idle state. In another embodiment, the frame to be embroidered is moved to the home position in a state where the spindle is stopped in the non-stop home position in the spindle stop state. Compared with the two embodiments, in the latter embodiment, after the thread cutting is finished, the upper thread end is hooked by the hook knife, and the main shaft needs to be rotated back to the parking position. It can be seen that the execution efficiency of the latter embodiment is lower than that of the former embodiment.
The frame with embroidery must be moved to the original position when cutting the thread, so as to ensure that the bottom thread is not overlong.
In step S05, the movable trimming blade and the stationary trimming blade are closed to trim the upper thread and the lower thread of the left waist line segment of the loop.
The method of the present invention further comprises the step of releasing the upper thread by the thread retainer. In one embodiment, the step of releasing the upper thread by the thread catcher may be performed after the thread cutting movable knife hooks the lower thread and the upper thread to the position of the loop-defined lower thread and the upper thread. The mode can keep the elongated facial suture as loose as possible, and avoid the hair and even the broken thread when the movable knife pulls the facial suture into the fixed knife. In another embodiment, the step of releasing the upper thread by the thread catcher may be performed after the cutting blade cuts the upper thread. When the thread end is cut, the thread end of the last stitch on the embroidery material is tensioned again, and if the upper thread is released by the thread retaining device before the thread end is cut, the thread end is easy to run from the back side to the front side of the embroidery material because the thread end is loose. In this way, the thread-clasping retainer can keep the upper thread in the thread cutting process until the upper thread is cut off and then is released, the movable knife can pull the upper thread to the cutting edge of the fixed knife, the upper thread keeps a tensioned state, and the tensioning force of the upper thread and the stitches is the largest at the moment, so that the stitches are tensioned, and the thread ends are not easy to run on the front side of the embroidery material.
The method also comprises a setting step of the step of releasing the upper thread by the thread-fastening retainer. The time for releasing the upper thread from the thread retainer is set as required. For example, when the upper thread is of the breakable type, the timing for releasing the upper thread from the thread holder is set according to the former embodiment. For another example, when the upper thread is of a type which is not easily broken and requires a tight stitch, the time for releasing the upper thread from the thread holder is set according to the latter embodiment.
The method of the present invention further comprises a step S06 of controlling the hook cutter to hook up the cut head of the upper thread and hold the head in the upper thread clamp. The hook knife hooks the upper thread end of the right waist line segment and accommodates the upper thread clamp.
As shown in fig. 2, the present invention also provides a thread trimming control device with a controllable thread end of an embroidery machine, which is implemented based on the above method. The device is arranged in the existing embroidery machine and drives the existing mechanism in the embroidery machine to execute the intelligent thread cutting action. The device comprises a facial line holding module, a facial line length control module and a thread trimming module. The upper thread holding module is used for controlling the rotating shuttle to drive the upper thread to rotate and controlling the thread buckling retainer to hang the upper thread which is separated from the rotating shuttle on the thread buckling retainer so as to realize the holding of the upper thread. The upper thread length control module is used for controlling the moving stroke of the frame with the embroidery material according to the required upper thread cutting length so as to obtain the lengths of the upper thread ends with different lengths. The thread cutting module is used for controlling the movable cutter to hook the bottom thread and the upper thread to the position of the defined bottom thread and the position of the upper thread after controlling the frame with the embroidery material to move to the required length of the upper thread to cut the thread, and controlling the thread cutting cutter to cut the bottom thread and the upper thread after controlling the frame with the embroidery material to move to the original position.
The upper thread holding module also controls the upper thread release of the thread buckling holder. And the timing of the upper thread release can be set as desired. For example, the upper thread releasing step of the thread catcher may be performed after the thread cutting movable knife grabs the lower thread and the upper thread to the position of the loop lower thread and the upper thread. For another example, the step of releasing the upper thread by the thread catcher may be performed after the upper thread is cut by the thread cutter. The device also comprises a storage module which is used for storing the required facial line trimming length and the moving stroke of the frame with the embroidery material, which is in one-to-one correspondence with the required facial line trimming length. The storage module is also used for storing actions of the thread trimmer in different time periods, such as the time periods of opening, returning, pausing and closing of the thread trimmer, and even the angles of opening, returning, pausing and returning. The device also comprises a thread hooking module which is used for controlling the hooking knife to hook up the cut thread end of the upper thread and hold the thread end in the upper thread clamp.
It will be appreciated by persons skilled in the art that the embodiments of the invention described above and shown in the drawings are given by way of example only and are not limiting of the invention. The objects of the present invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the examples, and any variations or modifications of the embodiments of the present invention may be made without departing from the principles.
Claims (17)
1. A thread trimming control method with controllable length of a thread end of a face thread of an embroidery machine is characterized by comprising the following steps:
step S01, controlling the rotating shuttle to drive the upper thread to rotate, and controlling the thread-fastening retainer to hang the upper thread which is pulled out of the rotating shuttle on the thread-fastening retainer so as to realize the retention of the upper thread;
step S02, controlling the moving stroke of the frame with embroidery material according to the required thread cutting length of the upper thread to obtain thread ends of the upper thread with different lengths;
step S03, controlling the thread cutting movable knife to hook the bottom thread and the upper thread to the position of the coiling bottom thread and the upper thread;
step S04, controlling the frame with embroidery material to move to the original position;
and step S05, controlling the thread cutter to cut the bottom thread and the upper thread.
2. The thread trimming control method for controlling the length of the thread end of an embroidery machine face according to claim 1, wherein the steps S03 and S04 are performed simultaneously; alternatively, step S03 is performed after step S04.
3. The thread trimming control method of an embroidery machine face thread end length controllable according to claim 1, further comprising: before the step S01, the required facial thread cutting length and the moving stroke of the frame with embroidery material corresponding to the required facial thread cutting length one by one are stored in advance.
4. The method for controlling trimming of an embroidery machine with a length-controllable thread end of a face thread according to claim 1, wherein the lower thread and the upper thread are hooked to a position where the lower thread is looped and are confined to a space defined by the movable trimming blade and the stationary trimming blade.
5. The thread cutting control method of an embroidery machine face thread end length controllable according to claim 1, wherein the step S02 includes: and controlling the moving stroke of the belt embroidery frame moving in the Y-axis direction according to the required length of the thread trimming of the upper thread.
6. The trimming control method according to claim 5, wherein a moving stroke of the embroidery frame in the Y-axis direction is a negative moving stroke.
7. The thread cutting control method according to claim 1, wherein the controlling of the movement of the frame with the embroidery to elongate the thread end of the upper thread in step S02 is performed after the main shaft driving rotary hook picks up the thread and before the main shaft driving rotary hook picks up the upper thread and the main shaft hooked on the thread holder reaches the parking position; or after the main shaft drives the rotating shuttle to take the thread and before the main shaft stops waiting for thread cutting.
8. The thread cutting control method according to claim 7, wherein the controlling of the movement of the frame with the embroidery to elongate the thread end of the upper thread in step S02 is performed after the main shaft driving rotary hook picks up the thread and before or when the main shaft driving rotary hook picks up the upper thread and is hooked on the thread take-up holder reaches the highest position of the thread take-up lever.
9. The thread trimming control method according to claim 1, wherein the operation of controlling the frame with the embroidery material to move to the home position in step S04 is performed in a state where the main shaft is stopped or idled.
10. The thread trimmer controlling method according to claim 1, further comprising the step of releasing the upper thread by the thread catcher; the step of releasing the upper thread by the thread-clasping retainer is carried out after the thread-cutting movable cutter hooks the bottom thread and the upper thread to the positions of the coiling bottom thread and the upper thread; or the step of releasing the upper thread by the thread catcher is carried out after the cutting blade cuts the upper thread.
11. The thread cutting control method of an embroidery machine upper thread end controllable in length according to claim 1, further comprising a step S06 of controlling the hooking cutter to hook and receive the cut upper thread end in the upper thread clamp.
12. The utility model provides a controllable trimming controlling means of embroidery machine face thread end length which characterized in that includes:
the upper thread holding module is used for controlling the rotating shuttle to drive the upper thread to rotate and controlling the thread buckling holder to hang the upper thread which is separated from the rotating shuttle on the thread buckling holder so as to realize the holding of the upper thread;
the upper thread length control module is used for controlling the moving stroke of the frame with the embroidery material according to the required upper thread cutting length so as to obtain the lengths of upper thread ends with different lengths;
and the thread cutting module is used for controlling the movable cutter to hook the bottom thread and the upper thread to the position of the defined bottom thread and the position of the upper thread after controlling the frame with the embroidery material to move to the required upper thread cutting length, and controlling the thread cutting cutter to cut the bottom thread and the upper thread after controlling the frame with the embroidery material to move to the original position.
13. The thread cutting control device as claimed in claim 11, further comprising a storage module for storing a desired upper thread cutting length and a moving stroke of the frame with the embroidery material in one-to-one correspondence with the desired upper thread cutting length.
14. The thread trimming control apparatus for controlling the length of the thread end of the upper thread in the embroidery machine as claimed in claim 11, further comprising a thread hooking module for controlling the hooking knife to hook and receive the cut thread end of the upper thread in the upper thread clamp.
15. The thread trimmer control device according to claim 11, wherein the upper thread length control module controls the movement of the frame with the embroidery to lengthen the thread end, and is provided after the main shaft driving rotary shuttle picks up the thread and before the main shaft driving rotary shuttle picks up the upper thread and hangs on the thread take-up holder reaches the parking position; or after the main shaft drives the rotating shuttle to take the thread and before the main shaft stops waiting for thread cutting.
16. The thread cutting control apparatus according to claim 11, wherein the operation of the thread cutting module for controlling the frame with the embroidery material to move to the home position is performed in a state where the main shaft is stopped or idled.
17. The apparatus of claim 11, wherein the moving stroke is a negative moving stroke of the embroidery frame moving in the Y-axis direction.
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| CN202010098291.8A CN111074444B (en) | 2020-02-18 | 2020-02-18 | Thread trimming control method and device capable of controlling length of thread end of embroidery machine surface thread |
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| CN202010098291.8A CN111074444B (en) | 2020-02-18 | 2020-02-18 | Thread trimming control method and device capable of controlling length of thread end of embroidery machine surface thread |
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| CN112941750A (en) * | 2021-01-27 | 2021-06-11 | 马秀珍 | Thread feeding mechanism and embroidery machine |
| CN113235242A (en) * | 2021-04-27 | 2021-08-10 | 诸暨兴大豪科技开发有限公司 | Thread cutting control method and device for embroidery equipment and equipment |
| CN113846442A (en) * | 2021-11-15 | 2021-12-28 | 汝州玛雅机电科技有限公司 | Thread cutting method of embroidery machine |
| CN114197125A (en) * | 2021-12-28 | 2022-03-18 | 浙江越隆缝制设备有限公司 | Thread hooking control method for embroidery machine |
| CN115992420A (en) * | 2023-02-20 | 2023-04-21 | 浙江镨美科智能刺绣设备有限公司 | Thread cutting device and thread cutting method of embroidery machine |
| CN116103852A (en) * | 2023-03-09 | 2023-05-12 | 浙江镨美科智能刺绣设备有限公司 | Thread cutting method of embroidery machine |
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Effective date of registration: 20230705 Address after: No.35 Wenzhong Road, Taozhu street, Zhuji City, Shaoxing City, Zhejiang Province Patentee after: ZHEJIANG PUMEIKE INTELLIGENT EMBROIDERY EQUIPMENT CO.,LTD. Address before: 311800 No.51, xianjiafan village, Huandong street, Zhuji City, Shaoxing City, Zhejiang Province Patentee before: Chen Tianlong |