CN213896280U - Thread trimming device for sewing machine - Google Patents
Thread trimming device for sewing machine Download PDFInfo
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- CN213896280U CN213896280U CN202022622159.0U CN202022622159U CN213896280U CN 213896280 U CN213896280 U CN 213896280U CN 202022622159 U CN202022622159 U CN 202022622159U CN 213896280 U CN213896280 U CN 213896280U
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- thread trimming
- blade
- trimming device
- movable knife
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Abstract
The utility model discloses a thread trimming device for a sewing machine, relating to the field of sewing machines; the thread trimming device for the sewing machine comprises a working platform, wherein a fixed blade and a driving device are arranged on the working platform; the driving device is provided with a movable cutter set and is used for driving the movable cutter set and the fixed cutter to complete shearing work; the utility model discloses a thread trimming device for sewing machine combines the effect of realizing stranded thread trimming through single stationary blade and a plurality of movable blade, very big improvement the efficiency of thread trimming to the structure of thread trimming device has still been simplified.
Description
Technical Field
The utility model relates to a sewing machine field especially relates to a thread trimming device for sewing machine.
Background
The sewing machine is a common device in the field of clothes, the sewing machine needs to cut short sewing threads after finishing sewing work, and an automatic thread cutting device is basically adopted for improving the working efficiency;
the utility model discloses a sewing machine trimming tape cutting device and sewing machine as disclosed in chinese utility model patent CN210066165U belongs to sewing technical field. The sewing machine solves the problems that the existing sewing machine with the thread trimming detection mechanism has the defects of increased occupied space, high required power and incapability of automatically cutting off and clearing the edge covering stub bar. The thread and belt shearing device of the sewing machine comprises a thread shearing seat, a scissors assembly and a driving element; the axis of the push-pull rod is perpendicular to the axis of the rotating shaft, a push-pull head is fixed on the push-pull rod, a swing arm is fixed on the movable knife, a strip-shaped sliding groove is formed in the swing arm, a sliding shaft is embedded in the sliding groove, and the sliding shaft is fixedly connected with the push-pull head
However, the above thread trimming device has low working efficiency, and therefore, a thread trimming device with high working efficiency is required to replace the prior art.
SUMMERY OF THE UTILITY MODEL
First, technical problem to be solved
The utility model aims at the above-mentioned problem that prior art exists, provide a trimming device for sewing machine specially, solve the lower problem of current trimming device work efficiency.
Second, technical scheme
In order to solve the above technical problem, the utility model provides a thread trimming device for sewing machine, include: the working platform is provided with a fixed blade and a driving device;
the driving device is provided with a movable cutter set and is used for driving the movable cutter set and the fixed cutter to complete shearing work.
The movable cutter set comprises a movable cutter frame, a movable cutter plate and a movable cutter blade; the movable blade plate is provided with a plurality of movable blades; the movable knife board is fixed on the movable knife rest through a blade screw arranged at each of two ends.
Wherein, the last equipartition of movable cutting board has the first screw hole of a plurality of, and the movable blade is fixed with the movable cutting board through first screw hole.
Wherein, work platform still is provided with the dead lever, is provided with a plurality of preforming on the dead lever, and the preforming is the same with moving blade quantity.
Wherein, the both ends of dead lever respectively are provided with a set screw, and the dead lever passes through the set screw to be fixed in on the work platform.
Wherein, the movable knife rest is a U-shaped frame, and two U-shaped ends are respectively provided with a driving device.
Wherein, the driving device is a cylinder.
A plurality of second threaded holes are uniformly distributed in the fixed rod, and the center lines of the second threaded holes and the first threaded holes are located on the same horizontal line.
Wherein, be equipped with first blade and second blade on the movable blade, first blade and second blade homoenergetic form with the stationary blade and cut.
Thirdly, the beneficial effects of the utility model
Compared with the prior art, the utility model discloses a thread trimming device for sewing machine has following beneficial effect:
(1) the effect of multi-strand wire shearing is realized through the combination of the single fixed blade and the plurality of movable blades, the wire shearing efficiency is greatly improved, and the structure of the wire shearing device is also simplified.
(2) Through the design of a plurality of evenly distributed screw holes, the distance between two adjacent moving blades can be adjusted according to actual production requirements, so that the thread trimming mechanism can finish the thread trimming work with different thread distances, and the application range of the thread trimming device is greatly enlarged.
(3) Through the setting of preforming, the trimming device can push down the end of a thread through the preforming after accomplishing the trimming work, and the effectual phenomenon of having avoided the end of a thread to run indiscriminately appears.
(4) Through the arrangement of the movable blade and the pressing sheet, the movable blade group and the pressing sheet group can be rapidly detached and then adjusted when the distance between the movable blades is adjusted, so that the work of the sewing machine is not affected, and the use efficiency of the sewing machine is improved.
Drawings
FIG. 1 is an overall view of the thread trimming device for a sewing machine according to the present invention;
FIG. 2 is an effect diagram of the pressing sheet abutting against the movable blade of the thread trimming device for the sewing machine of the present invention;
FIG. 3 is a structural view of a movable blade of the thread trimming device for a sewing machine according to the present invention;
FIG. 4 is a back structure view of the thread trimming device for the sewing machine according to the present invention;
FIG. 5 is a structural diagram of a presser group of the thread trimming device for a sewing machine according to the present invention;
FIG. 6 is a structural view of a movable knife group of the thread trimming device for the sewing machine of the present invention;
in the figure: 1 is a working platform; 2 is a fixed blade; 3 is a driving device; 4, a movable cutter group; 5 is a movable knife rest; 6 is a movable cutting board; 7 is a movable blade; 8 is a blade screw; 9 is a fixed rod; 10, tabletting; 61 is a first threaded hole; 71 is a first cutting edge; 72 is a second cutting edge; 91 is a second threaded hole; and 92 is a fixing screw.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
The first embodiment is as follows:
the structure of the thread trimming device for the sewing machine of the present embodiment includes, as shown in fig. 1 to 6:
the device comprises a working platform 1, wherein a fixed blade 2 and a driving device 3 are arranged on the working platform 1;
the driving device 3 is provided with a movable cutter set 4, and the driving device 3 is used for driving the movable cutter set 4 and the fixed cutter 2 to complete shearing work.
The movable knife tackle 4 comprises a movable knife rest 5, a movable knife board 6 and a movable knife blade 7; the movable knife board 6 is provided with a plurality of movable blades 7; the movable knife board 6 is uniformly provided with a plurality of first threaded holes 61, the movable knife blade 7 is fixed with the movable knife board 6 through the first threaded holes 61, the movable knife blades 7 are installed on the movable knife board 6 to form a knife blade assembly, and the movable knife blades 7 can be fixed on the movable knife board 6 through the first threaded holes 61 at different positions according to actual requirements when in use and are used for adjusting the distance between two adjacent movable knife blades 7. The sewing threads with different intervals can be conveniently cut.
The movable knife plate 6 is fixed on the movable knife rest 5 through the blade screws 8 arranged at two ends respectively, and the blade component can be quickly detached only by loosening the blade screws 8, so that the use of the sewing machine is not influenced.
The movable tool holder 5 is a U-shaped holder, two U-shaped ends are respectively provided with a driving device 3, the driving devices 3 are air cylinders, and the two air cylinders drive simultaneously so as to keep the movable tool holder 5 to operate stably.
The movable blade 7 is provided with a first cutting edge 71 and a second cutting edge 72, the first cutting edge 71 and the second cutting edge 72 are respectively arranged on the movable blade 7, the first cutting edge 71 and the second cutting edge 72 can both form shearing with the fixed blade 2, during thread shearing, a sewing thread is firstly hooked by the first cutting edge 71 or the second cutting edge 72, the driving device 3 pushes the movable blade holder 5 to move, the movable blade holder 5 drives the movable blade 7, shearing motion is carried out between the first cutting edge 71 or the second cutting edge 72 and the fixed blade 2, and the sewing thread is sheared under the shearing motion of the first cutting edge 71 or the second cutting edge 72 and the fixed blade 2.
Example two:
on the basis of the first embodiment, the thread pressing device is additionally arranged in the embodiment, the working platform 1 is further provided with the fixing rod 9, the fixing rod 9 is provided with the pressing sheets 10 with the same number as the movable blade 7, the fixing rod 9 is evenly provided with the second threaded holes 91, the pressing sheets 10 are fixed with the fixing rod 9 through the second threaded holes 91 to form a pressing sheet group, the fixed pressing sheets 10 are abutted to the movable blade 7, after the movable blade 7 and the fixed blade 2 complete shearing work, the movable blade 7 can continue to drive the sheared sewing threads, and thread ends are clamped between the movable blade 7 and the pressing sheets 10.
The central line of the second threaded hole 91 is on the same horizontal line with the central line of the first threaded hole 91, so that when the movable blade 7 is adjusted, the pressing sheet 7 can be adjusted along with the movable blade 7, and the pressing sheet 10 can be kept in a state of abutting against the movable blade 7.
Two ends of the fixing rod 9 are respectively provided with a fixing screw 92, the fixing rod 9 is fixed on the working platform 1 through the fixing screws 92, and the whole pressing sheet set can be detached by unscrewing the fixing screws 92, so that the effect of quick detachment is achieved.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. A thread trimming device for a sewing machine, characterized in that it comprises:
the device comprises a working platform (1), wherein a fixed blade (2) and a driving device (3) are arranged on the working platform (1);
the cutting device is characterized in that a movable cutter set (4) is arranged on the driving device (3), and the driving device (3) is used for driving the movable cutter set (4) and the fixed cutter (2) to complete cutting work.
2. The thread trimming device for sewing machines according to claim 1, wherein the movable knife group (4) comprises a movable knife holder (5), a movable knife plate (6) and a movable knife blade (7);
the movable knife board (6) is provided with a plurality of movable blades (7);
the movable knife plate (6) is fixed on the movable knife rest (5) through two blade screws (8) arranged at two ends respectively.
3. The thread trimming device for sewing machines according to claim 2, wherein the movable knife plate (6) is uniformly provided with a plurality of first threaded holes (61), and the movable knife blade (7) is fixed with the movable knife plate (6) through the first threaded holes (61).
4. The thread trimming device for sewing machines as claimed in claim 3, characterized in that said working platform (1) is further provided with a fixing bar (9), said fixing bar (9) being provided with a plurality of presser blades (10), said presser blades (10) being equal in number to said movable blades (7).
5. The thread trimming device for sewing machines as claimed in claim 4, characterized in that each of the two ends of the fixing rod (9) is provided with a fixing screw (92), the fixing rod (9) being fixed to the work platform (1) by means of the fixing screw (92).
6. The thread trimmer according to claim 5, characterized in that the movable blade carrier (5) is a U-shaped carrier, and a drive unit (3) is provided at each of the two U-shaped ends.
7. The thread trimming device for sewing machines according to claim 6, characterized in that the driving means (3) are pneumatic cylinders.
8. The thread trimming device for sewing machines as claimed in claim 7, characterized in that said fixing rod (9) has a plurality of second threaded holes (91) uniformly distributed thereon, the center lines of said second threaded holes (91) being on the same horizontal line as said first threaded holes (61).
9. The thread trimming device for a sewing machine according to claim 8, wherein the movable blade (7) is provided with a first cutting edge (71) and a second cutting edge (72), and both the first cutting edge (71) and the second cutting edge (72) can form shearing with the fixed blade (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022622159.0U CN213896280U (en) | 2020-11-13 | 2020-11-13 | Thread trimming device for sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022622159.0U CN213896280U (en) | 2020-11-13 | 2020-11-13 | Thread trimming device for sewing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213896280U true CN213896280U (en) | 2021-08-06 |
Family
ID=77118974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022622159.0U Active CN213896280U (en) | 2020-11-13 | 2020-11-13 | Thread trimming device for sewing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213896280U (en) |
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2020
- 2020-11-13 CN CN202022622159.0U patent/CN213896280U/en active Active
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