CN115787209A - Thread trimming mechanism of quilting machine and using method - Google Patents
Thread trimming mechanism of quilting machine and using method Download PDFInfo
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- CN115787209A CN115787209A CN202211241529.3A CN202211241529A CN115787209A CN 115787209 A CN115787209 A CN 115787209A CN 202211241529 A CN202211241529 A CN 202211241529A CN 115787209 A CN115787209 A CN 115787209A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The invention provides a thread trimming mechanism of a quilter and a using method thereof, comprising an installation base, a cylinder I: the air cylinder I is arranged on an air cylinder I mounting plate through a screw, an air cylinder I joint is arranged on a rear air cylinder shaft head, and the air cylinder I joint is fixed on a left side screw hole corresponding to a mounting base of the mechanism through a screw; the pneumatic wire cutting driving device comprises a pneumatic wire cutting driving connecting rod and a wire cutting driving crank, wherein the cylinder I joint, the pneumatic wire cutting driving connecting rod and the wire cutting driving crank are connected to the shaft diameter of the front end of a wire cutting shaft. Including trimming axle, reset spring, cam trimming drive crank assembly, spacing crank, stopper: the thread cutting shaft, the reset spring, the cam thread cutting driving crank assembly, the limiting crank and the limiting block are sequentially arranged in the corresponding holes of the mounting base of the mechanism and fixed, and the front end of the thread cutting shaft is matched with the inner hole of the movable knife crank in the movable knife rest assembly. The invention can well meet the requirements of users on different thread cutting, better improve the production efficiency, integrate different thread cutting modes into a whole more perfectly, and is convenient and easy to operate.
Description
Technical Field
The invention relates to the technical field of sewing equipment, in particular to a thread trimming mechanism of a quilting machine and a using method thereof.
Background
The circular knife thread cutting mechanism of sewing equipment (lock stitch) on the market at present, its drive mode divide into two kinds: one is that a single pneumatic element drives a connecting rod to drive a crank of a movable cutter, so that the movable cutter is driven to rotate towards the direction of a fixed cutter to achieve the meshing of the movable cutter and the fixed cutter, and the thread cutting result is realized; the other is that a standard cam (contour curved surface with standard appearance) arranged on the lower shaft is adopted to drive a driving crank component arranged on the thread cutting shaft, the movable cutter rotates to the fixed cutter direction along the contour track of the cam curved surface until meshing is realized, and finally the thread cutting result is realized.
In the sewing process of a thread cutting mechanism of a quilting machine, a thread cutting result and a thread cutting requirement are one of key indexes for judging a piece of quilting equipment by a user. Ideal results for trimming: firstly, the length of the thread end after each thread trimming is consistent, the thread end is flush and has no rough and thread adhesion; the position of the bottom thread end is not deviated, so that the next sewing is facilitated without empty needles; the length of the upper thread is proper, and the upper thread is not easy to rise and fall off; secondly, according to different thread cutting requirements, thread cutting can be carried out at any angle, thread cutting can be carried out under the condition that the main shaft is not moved, bottom threads can be cut off simultaneously, and bottom threads can also be cut off independently;
in summary, the thread trimming mechanism of the current quilting machine can only achieve one or two requirements singly, and cannot well meet the comprehensive requirements of the user on thread trimming effect. Therefore, the invention combines the two requirements of one and the other into a whole, thereby solving the key problem.
Disclosure of Invention
In view of this, the invention provides a thread trimming mechanism of a quilter, which integrates different thread trimming modes, and comprises a mounting base, a cylinder I: the air cylinder I is arranged on an air cylinder I mounting plate through a screw, an air cylinder I joint is arranged on a rear air cylinder shaft head, and the air cylinder I joint is fixed on a left side screw hole corresponding to a mounting base of the mechanism through a screw;
the pneumatic wire cutting driving device comprises a pneumatic wire cutting driving connecting rod and a wire cutting driving crank, wherein the cylinder I joint, the pneumatic wire cutting driving connecting rod and the wire cutting driving crank are connected to the shaft diameter of the front end of a wire cutting shaft.
Including trimming axle, reset spring, cam trimming drive crank assembly, spacing crank, stopper: the thread cutting shaft, the reset spring, the cam thread cutting driving crank assembly, the limiting crank and the limiting block are sequentially arranged in the corresponding holes of the mounting base of the mechanism and fixed, and the front end of the thread cutting shaft is matched with the inner hole of the movable knife crank in the movable knife rest assembly.
Further, still include sleeve, lower shaft, trimming cam subassembly, lower shaft middle bearing, lower shaft rear bearing, synchronizing wheel I, hold-in range before the lower shaft: the lower shaft front sleeve, the lower shaft, the trimming cam assembly, the lower shaft middle bearing, the lower shaft rear bearing, the synchronizing wheel I and the synchronous belt are sequentially arranged in the lower shaft three holes corresponding to the mounting base of the mechanism.
Further, still include the knife rest subassembly: the movable cutter frame assembly is mounted on the front sleeve of the lower shaft and the front end face of the front hole of the lower shaft of the mounting base of the mechanism through screws.
Further, still include drive link assembly, cylinder II or electro-magnet and drive link assembly's coupling assembling, all install in the installation base of mechanism corresponds department and fix with screw.
Further, the mechanism also comprises a synchronizing wheel II arranged on the direct drive motor, the synchronizing wheel II is arranged at the shaft end of the direct drive motor and is fixed and sleeved into the synchronous belt, and the direct drive motor is fixed in a mounting hole at the rear end of the mounting base of the mechanism through a screw.
The fixed knife, the thread protecting sheet, the needle plate, the movable knife, the fixed knife seat, the positioning hook and the rotating shuttle are respectively fixed on the corresponding parts of the installation base of the mechanism through screws.
The use method of the thread trimming mechanism of the quilting machine comprises the following steps:
the method comprises the following steps: the driving connecting rod assembly, the air cylinder II or the electromagnet, and the connecting assembly of the air cylinder II or the electromagnet and the driving connecting rod assembly are arranged at the corresponding position of the mounting base of the mechanism and are fixed by screws; the cam is formed to directly drive and control the movable cutter thread trimming mechanism. The problems that the thread cutting of quilting is unstable, the thread ends are different in length, the thread ends of the bottom threads are different in length (the thread ends of the upper threads are different in length, the needle is easy to pull out, and the like) and the like can be well solved.
Step two: the lower shaft front sleeve, the lower shaft, the trimming cam assembly, the lower shaft middle bearing, the lower shaft rear bearing, the synchronous wheel I and the synchronous belt are sequentially arranged in the lower shaft three holes corresponding to the mounting base of the mechanism; the screws are respectively fixed at the corresponding parts of the installation base of the mechanism; the synchronous wheel II is arranged at the shaft end of the direct drive motor and fixed and sleeved into the synchronous belt, and the direct drive motor is fixed in a mounting hole at the rear end of a mounting base of the mechanism through a screw; the movable cutter frame assembly is arranged on the front sleeve of the lower shaft and the front end surface of a front hole of the lower shaft of the mounting base of the mechanism by screws; the thread trimming shaft, the reset spring, the cam thread trimming driving crank assembly, the limiting crank and the limiting block are sequentially arranged in corresponding holes of the mounting base of the mechanism and fixed, and then the front end of the thread trimming shaft is matched with an inner hole of the movable knife crank in the movable knife rest assembly; a fixed knife, a thread protecting sheet, a needle plate, a fixed knife seat, a positioning hook and a rotating shuttle; after the parts are correspondingly arranged on the mounting base, the trimming cam assembly and the cam trimming driving crank assembly are temporarily not fixed, the other parts are adjusted in sequence and then fixed by corresponding screws, and then the synchronous belt is coiled by hands, so that the hand feeling is uniform and no blocking exists, and the whole mechanical structure meets the requirements;
step three: the cylinder I joint, the pneumatic trimming driving connecting rod and the trimming driving crank are connected to the shaft diameter at the front end of the trimming shaft; then the movable knife rest component and the movable knife rest component are respectively connected and fixed by corresponding fastening screws and shaft position screws, the hand-push air cylinder I moves in the opposite direction, and the whole connecting rod mechanism drives the movable knife component to move, so that the clamping is easy and free; then the movable knife and the movable knife (industry standard parts) are arranged on the movable knife rest by special mounting screws; and then, the air cylinder I is pushed by hand to enable the movable cutter to move towards the fixed cutter until the movable cutter and the fixed cutter are engaged easily, and the assembly of the pneumatic directly-driven thread cutting mechanism is completed.
Step four: the driving connecting rod assembly, the air cylinder II or the electromagnet, and the connecting assembly of the air cylinder II or the electromagnet and the driving connecting rod assembly are arranged at the corresponding position of the mounting base of the mechanism and are fixed by screws;
step five: the driving connecting rod assembly, the air cylinder II or the electromagnet, and the connecting assembly of the air cylinder II or the electromagnet and the driving connecting rod assembly are respectively fixed and fastened under the condition of no blocking; the cylinder II or the electromagnet drives a connecting component of the cylinder II or the electromagnet and the driving connecting component to be connected and drive the driving connecting component, then the manual cylinder II or the electromagnet is pushed forwards to drive the cam to cut the driving pin on the cam cutting driving crank component into a groove of the cutting cam component on the lower shaft, the lower shaft rotates to drive the cutting cam, the cam drives the driving pin to be attached to the outer contour surface of the cam to move along a track, and simultaneously the crank of the movable cutter frame component on the axial diameter of the front end of the cutting spool where the cam cutting driving crank component is located drives the movable cutter on the movable cutter frame component to move towards the direction of the fixed cutter to be easily engaged with the fixed cutter, so that one-time cutting action is completed, and the assembly of the cam cutting mechanism is completed.
Step six: after the whole transmission mechanism is formed, the trimming linkage mechanism is adjusted: 1. adjusting the pneumatic direct-drive trimming: when the movable cutter and the fixed cutter are loosened, the air cylinder is pushed to move in the opposite direction again, no obvious resistance exists when the movable cutter and the fixed cutter are engaged, and the cut Zhang Ju can be easily cut, the thread ends are neat and have no burrs;
further, after the components are assembled in the first step, the second step and the third step, the operation is adjusted to be smooth, the components are fastened again, and fine adjustment is performed when adjustment is needed according to actual conditions.
By adopting the technical scheme, the method has the following beneficial effects:
the invention is additionally provided with a pneumatic driving moving blade trimming line on the basis of the cam driving moving blade trimming line. Therefore, the invention integrates the stability of the cam driving moving blade trimming and the flexibility of the pneumatic driving moving blade trimming. The pneumatic driving movable cutter thread cutting is not driven and controlled by the lower shaft of the sewing machine, the thread can be cut at any angle, the thread can be cut under the condition that the main shaft is not moved, the bottom threads can be simultaneously cut, and the bottom threads can also be separately cut; the cam (the standardized profile curved surface drives the movable cutter thread trimming crank pin to realize the complete action of thread trimming) thread trimming mechanism can realize more stable thread trimming (the thread ends have better length consistency, the thread trimming time can be more conveniently adjusted according to the actual conditions such as the thickness of sewing materials and the like, thereby realizing the length of the thread ends left after thread trimming and the like). The invention can realize the independent control of the two mechanisms, thereby achieving the perfect combination of the two mechanisms. The invention can well meet the requirements of users on different thread cutting, better improve the production efficiency, integrate different thread cutting modes into a whole more perfectly, and is convenient and easy to operate.
Drawings
FIG. 1 is a perspective view of the quilting machine thread trimming mechanism apparatus of the present invention;
FIG. 2 is a schematic view of the thread trimming mechanism of the present invention in a structural state;
FIG. 3 is an exploded view of the pneumatic direct drive trimming mechanism of the present invention in assembled relation to a base;
FIG. 4 is an exploded view of the cam driven trimming mechanism of the present invention in assembled relation to a base;
fig. 5 is a side view of the quilter thread trimming mechanism apparatus of the present invention.
In the figure: 1-a mounting base of the mechanism, 2-a cylinder I, 3-a cylinder I mounting plate, 4-a cylinder I joint, 5-a pneumatic trimming driving connecting rod, 6-a trimming driving crank, 7-a moving cutter frame component, 8-a lower shaft front sleeve, 9-a lower shaft, 10-a trimming cam component, 11-1 a lower shaft middle bearing, 11-2 a lower shaft rear bearing, 12-a synchronizing wheel I, 13-a synchronizing wheel II, 14-a direct driving motor, 15-a synchronous belt, 16-a trimming shaft, 17-a reset spring, 18-a cam trimming driving crank component, 19-a limiting crank, 20-a limiting block, 21-a driving connecting rod component, 22-a cylinder II or an electromagnet, a 23-a cylinder II or a connecting component of the electromagnet and the driving connecting rod component, 24-a fixed cutter, 25-a wire protecting blade, 26-a needle plate, 27, a moving cutter, 28, a fixed cutter seat, 29, a positioning hook, 30 and a rotating shuttle.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1 to 5, the present invention provides a thread trimming mechanism device of a quilting machine, including: the 1, 2-cylinder I is arranged on the 3-cylinder I mounting plate through a screw, a 4-cylinder I joint is arranged on a rear cylinder shaft head, and then the 1-cylinder I joint is fixed on a left screw hole corresponding to a mounting base of the mechanism through a screw;
2. 8-a lower shaft front sleeve, 9-a lower shaft, 10-a trimming cam component, 11-1 a lower shaft middle bearing, 11-2 a lower shaft rear bearing, 12-a synchronous wheel I and 15-a synchronous belt are sequentially arranged in 1-a lower shaft three hole corresponding to a mounting base of the mechanism;
3. 7-the movable knife rest component is installed on the 8-lower shaft front sleeve and 1-the front end face of the lower shaft front hole of the installation base of the mechanism, 27, and the movable knife is fixed on the movable knife rest by special screws;
the 13-synchronizing wheel II is arranged at the shaft end of the 14-direct drive motor and fixed and sleeved into the 15-synchronizing belt, and the 14-direct drive motor is fixed in a mounting hole at the rear end of a mounting base of the 1-mechanism by a screw;
the 16-thread cutting shaft, the 17-reset spring, the 18-cam thread cutting driving crank component, the 19-limit crank and the 20-limit block are sequentially arranged in the corresponding hole of the mounting base of the mechanism 1-and are fixed, and then the front end of the 16-thread cutting shaft is matched with the inner hole of the movable knife crank in the 7-movable knife rest component;
the 24-fixed knife, the 25-thread protecting piece, the 26-needle plate, the 28, the fixed knife seat, the 29, the positioning hook, the 30 and the rotating shuttle are respectively fixed on the corresponding part of the installation base of the 1-mechanism by screws;
the 4-cylinder I joint, the 5-pneumatic trimming driving connecting rod and the 6-trimming driving crank are connected to the shaft diameter at the front end of the 16-trimming shaft;
the single thread trimming mechanism device with the air cylinder can meet the requirement of simultaneously trimming the bottom thread and the upper thread when the pneumatic driving is carried out to cut the thread by the movable cutter, and can also independently trim the bottom thread. As shown in fig. 3.
The following steps are carried out:
1. the 21-driving connecting rod assembly, the 22-air cylinder II or the electromagnet, and the 23-air cylinder II or the connecting assembly of the electromagnet and the driving connecting rod assembly are arranged at the corresponding position of the mounting base of the mechanism 1 and are fixed by screws;
the movable blade thread trimming mechanism is directly driven and controlled by the cam. The problems of unstable thread trimming, uneven thread ends, uneven bottom thread ends (the unfavorable conditions that the thread ends of the upper threads are not short and the needle is easy to be pulled out and the like) and the like of quilting can be well solved. As shown in fig. 4.
The 8-lower shaft front sleeve, the 9-lower shaft, the 10-trimming cam component, the 11-1 lower shaft middle bearing, the 11-2 lower shaft rear bearing, the 12-synchronizing wheels I and the 15-synchronizing belt are sequentially arranged in 1-lower shaft three holes corresponding to the mounting base of the mechanism; respectively fixed on 1-the corresponding part of the installation base of the mechanism by screws; 13-a synchronous wheel II is arranged at the shaft end of a 14-direct drive motor and is fixed and sleeved in a 15-synchronous belt, and a 14-direct drive motor is fixed in a mounting hole at the rear end of a mounting base of the mechanism 1 through a screw; 7, mounting the movable cutter frame component on the front sleeve of the lower shaft 8 and the front end surface of the front hole of the lower shaft of the mounting base of the mechanism 1 by using screws; the 16-thread cutting shaft, the 17-reset spring, the 18-cam thread cutting driving crank component, the 19-limit crank and the 20-limit block are sequentially arranged in the corresponding hole of the mounting base of the mechanism 1-and are fixed, and then the front end of the 16-thread cutting shaft is matched with the inner hole of the movable knife crank in the 7-movable knife rest component; 24-fixed knife, 25-thread protecting piece, 26-needle plate, 28, fixed knife seat, 29, positioning hook, 30, rotating shuttle, etc.;
after the parts are correspondingly arranged on the mounting base, the 10-trimming cam assembly and the 18-cam trimming driving crank assembly are temporarily not fixed, the rest parts are adjusted in sequence and then fixed by corresponding screws, and then the synchronous belt is coiled by hands, so that the hand feeling is uniform and no blockage exists, and the whole mechanical structure meets the requirements;
the 4-cylinder I joint, the 5-pneumatic trimming driving connecting rod and the 6-trimming driving crank are connected to the shaft diameter of the front end of the 16-trimming shaft; then the movable knife rest component and the 7-movable knife rest component are respectively connected and fixed by corresponding fastening screws and shaft position screws, the hand-push 4-air cylinder I moves in the opposite direction, and the whole connecting rod mechanism drives the movable knife component to act, so that the clamping is easy and free; then 27 and the movable knife (industry standard part) are installed on the movable knife rest by special installation screws; and then the 4-cylinder I is pushed by hand to move the movable cutter to the 24-fixed cutter direction until the movable cutter and the fixed cutter are engaged easily.
The assembly of the pneumatic directly driven thread cutting mechanism is completed.
The 21-driving connecting rod assembly, the 22-air cylinder II or the electromagnet, and the 23-air cylinder II or the connecting assembly of the electromagnet and the driving connecting rod assembly are arranged at the corresponding position of the mounting base of the mechanism 1 and are fixed by screws;
next, fastening related screws under the condition that the 21-driving connecting rod assembly, the 22-air cylinder II or the electromagnet and the 23-air cylinder II or the connecting assembly of the electromagnet and the driving connecting rod assembly are fixed and fixed respectively without blocking; 22-cylinder II or electromagnet drives 23-cylinder II or electromagnet and the connecting component of the driving connecting rod assembly. The 21-driving connecting rod assembly is connected and driven, then the 22-air cylinder II or the electromagnet is manually pushed forward to drive the 18-cam trimming driving crank assembly to move forward, the driving pin on the 18-cam trimming driving crank assembly is cut into the groove of the 10-trimming cam assembly on the lower shaft, the lower shaft rotates to drive the trimming cam, the cam drives the driving pin to be attached to the outer contour surface of the cam to move along a track, and simultaneously, the driving pin and the crank of the 7-moving knife rest assembly on the 16-trimming shaft front end shaft diameter where the 18-cam trimming driving crank assembly is located drive the 27 on the 7-moving knife rest assembly and the moving knife to move in the 24-fixed knife direction to be easily engaged with each other, so that one trimming action is completed;
the assembly of the cam trimming mechanism is completed.
Next, after the entire transmission mechanism is formed, the trimming linkage mechanism is adjusted: 1. pneumatic direct-drive trimming adjustment: when the movable cutter and the fixed cutter are loosened, the air cylinder is pushed to move in the opposite direction again, no obvious resistance exists when the movable cutter and the fixed cutter are engaged, and the cut Zhang Ju can be easily cut, the thread ends are neat and have no burrs;
and after the components are assembled, adjusting the components to run smoothly and fastening the components again. And when the adjustment is needed according to the actual situation, fine adjustment is carried out.
By using the embodiment, the problem that the thread cutting effect of a user on the quilting machine is not ideal at present is well solved, the sewing quality is improved, and the production efficiency is greatly improved.
Having thus described the basic principles and principal features of the invention, it will be appreciated by those skilled in the art that the invention is not limited by the embodiments described above, which are given by way of illustration only, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (8)
1. The utility model provides a thread trimming mechanism of quilter which characterized in that, including installation base, cylinder I: the air cylinder I is arranged on an air cylinder I mounting plate through a screw, an air cylinder I joint is arranged on a rear air cylinder shaft head, and the air cylinder I joint is fixed on a mounting base of the mechanism through a screw and corresponds to a left screw hole;
the pneumatic trimming mechanism comprises a pneumatic trimming driving connecting rod and a trimming driving crank, wherein an I joint of the air cylinder, the pneumatic trimming driving connecting rod and the trimming driving crank are connected to the shaft diameter of the front end of the trimming shaft.
Including trimming axle, reset spring, cam trimming drive crank assembly, spacing crank, stopper: the thread cutting shaft, the reset spring, the cam thread cutting driving crank assembly, the limiting crank and the limiting block are sequentially arranged in the corresponding holes of the mounting base of the mechanism and fixed, and the front end of the thread cutting shaft is matched with the inner hole of the movable knife crank in the movable knife rest assembly.
2. The thread trimming mechanism of a quilting machine of claim 1 further comprising a lower shaft front sleeve, a lower shaft, a thread trimming cam assembly, a lower shaft middle bearing, a lower shaft rear bearing, a synchronizing wheel I, a synchronizing belt: the lower shaft front sleeve, the lower shaft, the trimming cam assembly, the lower shaft middle bearing, the lower shaft rear bearing, the synchronizing wheel I and the synchronous belt are sequentially arranged in the lower shaft three holes corresponding to the mounting base of the mechanism.
3. The thread trimming mechanism of a quilting machine of claim 1 further comprising a movable knife carriage assembly: the movable cutter frame assembly is mounted on the front sleeve of the lower shaft and the front end face of the front hole of the lower shaft of the mounting base of the mechanism through screws.
4. The thread trimming mechanism of a quilting machine of claim 1 further comprising a driving link assembly, a cylinder II or an electromagnet, and a connecting assembly of the cylinder II or the electromagnet and the driving link assembly, all mounted at a corresponding position of the mounting base of the mechanism and fixed by screws.
5. The thread trimming mechanism of a quilting machine as claimed in claim 1, further comprising a synchronizing wheel II disposed on the direct drive motor, wherein the synchronizing wheel II is disposed at the shaft end of the direct drive motor and fixed to and sleeved into the synchronizing belt, and the direct drive motor is screwed into a mounting hole at the rear end of a mounting base of the mechanism.
6. The thread trimming mechanism of a quilting machine as claimed in claim 1, further comprising a stationary knife, a thread guard, a needle plate, a movable knife, a stationary knife holder, a positioning hook, and a rotary shuttle, wherein the stationary knife, the thread guard, the needle plate, the movable knife, the stationary knife holder, the positioning hook, and the rotary shuttle are respectively fixed to corresponding portions of a mounting base of the mechanism by screws.
7. The use method of the thread trimming mechanism of the quilting machine is characterized by comprising the following steps:
the method comprises the following steps: the driving connecting rod assembly, the air cylinder II or the electromagnet, and the connecting assembly of the air cylinder II or the electromagnet and the driving connecting rod assembly are arranged at the corresponding position of the mounting base of the mechanism and are fixed by screws; the movable blade thread trimming mechanism is directly driven and controlled by the cam. The problems of unstable trimming, uneven thread ends, uneven bottom thread ends (the unfavorable conditions that the thread ends of the upper threads are not short and the needle is easy to be pulled out and the like) and the like of the quilting can be well solved;
step two: the lower shaft front sleeve, the lower shaft, the trimming cam assembly, the lower shaft middle bearing, the lower shaft rear bearing, the synchronous wheel I and the synchronous belt are sequentially arranged in the lower shaft three holes corresponding to the mounting base of the mechanism; the screws are respectively fixed at the corresponding parts of the installation base of the mechanism; the synchronous wheel II is arranged at the shaft end of the direct drive motor and fixed and sleeved into the synchronous belt, and the direct drive motor is fixed in a mounting hole at the rear end of a mounting base of the mechanism through a screw; the movable cutter frame assembly is arranged on the front sleeve of the lower shaft and the front end surface of a front hole of the lower shaft of the mounting base of the mechanism by screws; the thread cutting shaft, the reset spring, the cam thread cutting driving crank assembly, the limiting crank and the limiting block are sequentially arranged in corresponding holes of a mounting base of the mechanism and fixed, and then the front end of the thread cutting shaft is matched with an inner hole of a movable cutter crank in the movable cutter frame assembly; a fixed knife, a thread protecting sheet, a needle plate, a fixed knife seat, a positioning hook and a rotating shuttle; after the parts are correspondingly arranged on the mounting base, the trimming cam assembly and the cam trimming driving crank assembly are temporarily not fixed, the other parts are adjusted in sequence and then fixed by corresponding screws, and then the synchronous belt is coiled by hands, so that the hand feeling is uniform and no blocking exists, and the whole mechanical structure meets the requirements;
step three: the cylinder I joint, the pneumatic trimming driving connecting rod and the trimming driving crank are connected to the shaft diameter at the front end of the trimming shaft; then the movable knife rest component and the movable knife rest component are respectively connected and fixed by corresponding fastening screws and shaft position screws, the hand-push air cylinder I moves in the opposite direction, and the whole connecting rod mechanism drives the movable knife component to move, so that the clamping is easy and free; then the movable knife and the movable knife (industry standard parts) are installed on the movable knife rest by special installation screws; then, the air cylinder I is pushed by hand to enable the movable cutter to move towards the fixed cutter until the movable cutter and the fixed cutter are engaged easily, and the assembly of the pneumatic directly-driven thread cutting mechanism is completed;
step four: the driving connecting rod assembly, the air cylinder II or the electromagnet, and the connecting assembly of the air cylinder II or the electromagnet and the driving connecting rod assembly are arranged at the corresponding position of the mounting base of the mechanism and are fixed by screws;
step five: the driving connecting rod assembly, the air cylinder II or the electromagnet, and the connecting assembly of the air cylinder II or the electromagnet and the driving connecting rod assembly are respectively fixed and fastened under the condition of no blocking; the cylinder II or the electromagnet drives a connecting component of the cylinder II or the electromagnet and a driving connecting component, the connecting component is connected and drives the driving connecting component, then the manual cylinder II or the electromagnet is pushed forwards to drive the cam to cut the driving pin on the cam cutting driving crank component into a groove of a cutting cam component on the lower shaft, the lower shaft rotates to drive the cutting cam, the cam drives the driving pin to be attached to the outer contour surface of the cam to perform a track motion, and simultaneously, the crank of the movable cutter frame component on the axial diameter of the front end of a cutting line shaft where the cam cutting driving crank component is located drives the movable cutter on the movable cutter frame component to move towards the direction of the fixed cutter until the movable cutter and the fixed cutter are easily engaged, so that one-time cutting motion is completed, and the assembly of the cam cutting mechanism is completed;
step six: after the whole transmission mechanism is formed, the trimming linkage mechanism is adjusted: 1. pneumatic direct-drive trimming adjustment: when the movable cutter and the fixed cutter are loosened, the cylinder is pushed to move in the opposite direction again, the movable cutter and the fixed cutter are meshed without obvious resistance, and the Zhang Ju seam can be easily cut, the end of the seam is neat and has no burrs.
8. The method of claim 7, wherein the first to sixth steps are performed to assemble the components, and then the components are adjusted to run smoothly and fastened again, and then fine adjustment is performed when adjustment is needed according to actual conditions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211241529.3A CN115787209A (en) | 2022-10-11 | 2022-10-11 | Thread trimming mechanism of quilting machine and using method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211241529.3A CN115787209A (en) | 2022-10-11 | 2022-10-11 | Thread trimming mechanism of quilting machine and using method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115787209A true CN115787209A (en) | 2023-03-14 |
Family
ID=85432795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211241529.3A Pending CN115787209A (en) | 2022-10-11 | 2022-10-11 | Thread trimming mechanism of quilting machine and using method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115787209A (en) |
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2022
- 2022-10-11 CN CN202211241529.3A patent/CN115787209A/en active Pending
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