CN210684164U - Thread end cutting device based on large needle plate - Google Patents
Thread end cutting device based on large needle plate Download PDFInfo
- Publication number
- CN210684164U CN210684164U CN201921271835.5U CN201921271835U CN210684164U CN 210684164 U CN210684164 U CN 210684164U CN 201921271835 U CN201921271835 U CN 201921271835U CN 210684164 U CN210684164 U CN 210684164U
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- needle plate
- knife
- board
- plate body
- faller
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Abstract
The utility model discloses a thread end cutting device based on a large needle plate, which extends inwards from the lower surface of the large needle plate body to form a groove, a round needle plate with a needle hole for holding the shuttle of a sewing needle is fixedly arranged at the bottom of the groove, the lower surface of the round needle plate also extends inwards to form a step surface, and the distance between the step surface and the upper surface of the large needle plate body is 1-1.8 mm; the edge of the fixed knife extends to the bottom of the groove and is abutted against the lower surface of the circular needle plate. Therefore, the thread end of the bottom thread of the cloth can be within 2MM after the sewing machine finishes sewing and cuts the thread.
Description
Technical Field
The utility model relates to a sewing machine specifically is a device is cut to end of a thread based on big faller.
Background
The trimming device for trimming the bottom thread end is integrated below the large needle plate and is generally applied in the prior art, but the length of the bottom thread end of cloth after trimming is still about 5mm in the conventional trimming device, so that the requirement of a high-quality product cannot be met.
Disclosure of Invention
The utility model aims at overcoming the not enough of prior art, through the optimal design of structure, on the basis that does not change the positive inherent form of faller, adjust through the mounted position with stationary knife, activity sword, with the step size adjustment of circle faller, guarantee the tacking machine and after making up the completion trimming, cloth bottom line end of a thread is about 2MM, and the technical scheme who adopts is:
this kind of end of a thread cuts short device based on big faller, including stationary knife, activity sword, even board one, even board two, the stationary knife sets firmly the lower surface at big faller plate body, the activity sword is established at the lower surface of big faller plate body through its one end hinge, even board two is established at the lower surface of big faller plate body through its middle part hinge, even board one end with even board two one end is articulated, the other end with the middle part of activity sword is articulated, thereby even the other end of board two realizes the swing through actuating mechanism and drives the activity sword swing so that the activity sword with the cooperation is cuted to the stationary knife, its characterized in that: a groove is formed by extending inwards from the lower surface of the large needle plate body, a circular needle plate with a needle hole for accommodating a sewing needle to shuttle is fixedly arranged at the bottom of the groove, the lower surface of the circular needle plate also extends inwards to form a step surface, and the distance between the step surface and the upper surface of the large needle plate body is 1-1.8 mm; the edge of the fixed knife extends to the bottom of the groove and is abutted against the lower surface of the circular needle plate. Therefore, the thread end of the bottom thread of the cloth can be within 2MM after the sewing machine finishes sewing and cuts the thread.
Further, the edge end of the fixed knife is tangent to the round hole of the pinhole. Therefore, the thread end is cut after exceeding the needle hole, and the cutting is more facilitated.
Furthermore, one end of the connecting plate II, which is hinged with the connecting plate I, is provided with a long round hole, the corresponding end of the connecting plate I is pivoted with a hinge shaft, and the hinge shaft can be positioned in different positions in the long round hole and fixes the connecting plate II and the hinge shaft through a screw cap screwed with the hinge shaft so as to adjust the swing angle of the movable knife. Therefore, after the blade at one position is worn, the blade can be adjusted to another position for shearing, and the service life is prolonged.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view (lower surface visible) of the circular needle plate of the present invention.
Fig. 3 is a schematic structural view (with the upper surface visible) of the circular needle plate of the present invention.
Detailed Description
As shown in fig. 1, a thread end cutting device based on a large needle plate includes a fixed blade 101, a movable blade 102, a first connecting plate 103 and a second connecting plate 104, where the fixed blade 101 is fixedly disposed on the lower surface of the large needle plate 100, the movable blade 102 is hinged to the lower surface of the large needle plate 100 through one end of the movable blade, the second connecting plate 104 is hinged to the lower surface of the large needle plate 100 through the middle of the second connecting plate, one end of the first connecting plate 103 is hinged to one end of the second connecting plate 104, the other end of the first connecting plate is hinged to the middle of the movable blade 102, and the other end of the second connecting plate 104 swings through a driving mechanism to drive the movable blade 102 to swing so that the movable blade 102 and the fixed blade 101 are matched in a cutting manner, which is characterized in that: a groove 105 is formed by extending inwards from the lower surface of the large needle plate body 100, a circular needle plate 106 with a needle hole 107 for allowing a sewing needle to shuttle is fixedly arranged at the bottom of the groove 105, the lower surface of the circular needle plate 106 also extends inwards to form a step surface 109, and the distance between the step surface and the upper surface of the large needle plate body is 1-1.8 mm; the edge 108 of the fixed blade 101 extends toward the bottom of the recess 105 and abuts against the lower surface of the circular needle plate 106. The edge end of the fixed knife 101 is tangent to the round hole of the pinhole 107. One end of the connecting plate II 104, which is hinged to the connecting plate I103, is provided with a long circular hole 111, the corresponding end of the connecting plate I103 is pivoted with a hinge shaft, and the hinge shaft can be positioned at different positions in the long circular hole 111 and fixes the connecting plate II 104 and the hinge shaft through a nut 110 screwed with the hinge shaft so as to adjust the swing angle of the movable knife 102.
Claims (3)
1. The utility model provides a device is cut short to line head based on big faller, includes stationary knife (101), movable knife (102), links board (103), links board two (104), stationary knife (101) set firmly the lower surface at big faller plate body (100), movable knife (102) are established at the lower surface of big faller plate body (100) through its one end hinge, link board two (104) through its middle part hinge establish the lower surface at big faller plate body (100), link board one (103) one end with link the one end of board two (104) articulated, the other end with the middle part of movable knife (102) is articulated, thereby the other end of linking board two (104) realizes through actuating mechanism that the swing drives movable knife (102) swing so that movable knife (102) with stationary knife (101) shear fit, its characterized in that: a groove (105) is formed by extending inwards from the lower surface of the large needle plate body (100), a circular needle plate (106) with a needle hole (107) for accommodating a sewing needle to shuttle is fixedly arranged at the bottom of the groove (105), the lower surface of the circular needle plate (106) also extends inwards to form a step surface (109), and the distance between the step surface and the upper surface of the large needle plate body is 1-1.8 mm; the edge (108) of the fixed blade (101) extends to the bottom of the groove (105) and abuts against the lower surface of the circular needle plate (106).
2. The thread end cutting device based on the large needle plate as claimed in claim 1, wherein: the edge end of the fixed knife (101) is tangent to the round hole of the pinhole (107).
3. The thread end cutting device based on the large needle plate as claimed in claim 1, wherein: one end of the connecting plate II (104) hinged to the connecting plate I (103) is provided with a long round hole (111), the corresponding end of the connecting plate I (103) is pivoted with a hinge shaft, the hinge shaft can be located at different positions in the long round hole (111), and the connecting plate II (104) and the hinge shaft are fixed through a nut screwed with the hinge shaft, so that the swing angle of the movable cutter (102) can be adjusted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921271835.5U CN210684164U (en) | 2019-08-07 | 2019-08-07 | Thread end cutting device based on large needle plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921271835.5U CN210684164U (en) | 2019-08-07 | 2019-08-07 | Thread end cutting device based on large needle plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210684164U true CN210684164U (en) | 2020-06-05 |
Family
ID=70883153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921271835.5U Active CN210684164U (en) | 2019-08-07 | 2019-08-07 | Thread end cutting device based on large needle plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210684164U (en) |
-
2019
- 2019-08-07 CN CN201921271835.5U patent/CN210684164U/en active Active
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