CN211848415U

CN211848415U - Thread lifting and threading assembly of sewing machine

Info

Publication number: CN211848415U
Application number: CN202020254752.1U
Authority: CN
Inventors: 谢少保
Original assignee: Zhejiang Sewpower Automation Technology Co ltd
Current assignee: Zhejiang Sewpower Automation Technology Co ltd
Priority date: 2020-03-04
Filing date: 2020-03-04
Publication date: 2020-11-03
Anticipated expiration: 2030-03-04

Abstract

The utility model provides a line assembly is crossed to sewing machine's line of carrying belongs to sewing machine technical field. It has solved the current trouble problem of carrying line and crossing the upset of line frame. This sewing machine's line assembly is crossed to lift line, sewing machine includes the aircraft nose, it crosses the line assembly including fixing the articulated frame on the aircraft nose to lift the line, it crosses the line frame to articulate through the articulated shaft on the articulated frame, the cover has the one end of torsional spring and torsional spring to act on articulated frame on the articulated shaft, the other end of torsional spring is used in on the line frame is crossed to lift line, still be equipped with flexure strip and reset button on the articulated frame, the one end of articulated shaft has the locating piece of protrusion setting, the locating piece can make with flexure strip looks joint and carry line frame location, reset button enables flexure strip and locating piece and breaks away from mutually. The thread lifting and passing assembly of the sewing machine has the advantage of convenient turning of the thread lifting and passing frame.

Description

Thread lifting and threading assembly of sewing machine

Technical Field

The utility model belongs to the technical field of sewing machine, a line assembly is crossed in lifting of sewing machine is related to.

Background

With the development of society, the maturity of textile industry technology and the development of material science and technology, sewing machines are also greatly improved, for example, a four-needle six-thread sewing machine is produced, the sewing machine is mainly used for splicing and connecting sewing pieces, consists of four upper threads, a bottom thread and a halbach thread, and has unique high-elasticity, flat and high-strength splicing effect.

For example, chinese patent literature discloses a manual adjustment device for a four-needle six-thread sewing machine [ application No.: 201120176427.9, respectively; authorization notice number: CN202144553U ], the sewing machine has a seat and a crank arm disposed on the seat, a driving shaft is disposed in the crank arm, a first gear is disposed through the driving shaft, the manual adjustment device has a control rod disposed through the crank arm, an operation member and an elastic member are disposed on the control rod, and a second gear corresponding to the first gear is disposed inside the crank arm, wherein the control rod is normally supported by the elastic member to link the second gear to separate from the first gear, and can be forced to compress the elastic member to link the second gear to engage with the first gear, and further link the first gear to rotate with the driving shaft, so as to finely adjust the sewing advance and retreat needle of the sewing machine.

This kind of manual adjusting device of structure, it crosses the line frame to articulate in the middle of aircraft nose top, the routing cam sets up in this carries the line and crosses the aircraft nose of line frame below, it crosses the line frame and matches with the routing cam to carry the line, when threading trades the line or takes place the stranded conductor and need the stitches removing, the operator needs manual upset flip, then manual upset is carried the line and is crossed the line frame again, because the structure of carrying line and crossing the line frame and routing cam sets up by mistake, and the structure is complicated relatively, the operator has the sensation of no from the lower hand, it is troublesome to make the upset of carrying line and crossing the line frame.

Disclosure of Invention

The utility model aims at providing a sewing machine's line assembly is crossed to the above-mentioned problem that exists among the prior art, and the technical problem of solution makes the line of carrying cross the upset of line frame convenient.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a sewing machine's line assembly is crossed to lift line, sewing machine includes the aircraft nose, its characterized in that, and the line assembly is crossed to lift line is including fixing the articulated frame on the aircraft nose, it has the line frame of crossing to articulate through the articulated shaft on the articulated frame, the cover has the torsional spring just on the articulated shaft the one end of torsional spring is used in the articulated frame, the other end of torsional spring is used in the line frame of crossing of lifting, still be equipped with flexure strip and reset button on the articulated frame, the one end of articulated shaft has the locating piece of protrusion setting, the locating piece can make with flexure strip looks joint the line frame location is crossed to lift line, reset button enables flexure strip and locating piece and breaks away from mutually.

During the use, press reset button, reset button enables flexure strip and locating piece and breaks away from mutually, and under the effect of torsional spring torsion, the line of lifting crosses the automatic upset of line frame, need not operator manual operation, does not have the problem of following the lower hand, and the line of lifting crosses the line frame upset convenient, then the operator overcomes the manual upset of torsion of torsional spring and lifts the line and cross the line frame, makes the locating piece can make the line of lifting cross the line frame location with flexure strip looks joint, convenient operation, and the upset is convenient.

In foretell sewing machine's line assembly is crossed in carrying line, the articulated frame is gone up to have the protrusion setting be long banding fixed strip, the outer end of fixed strip has the fixed part of protruding setting, the inner and the fixed phase of flexure strip link firmly mutually, the unsettled perk setting in outer end of flexure strip, reset button can press the outer end at the flexure strip. The structure ensures that the elastic piece has elasticity all the time, so that the elastic piece is always in a working state.

In foretell sewing machine's line assembly is crossed in carrying line, the outer end of flexure strip has the concave location breach that sets up that is the right angle form, the concave location notch that sets up of a plurality of has on the circumference lateral wall of locating piece, one side of location breach can be embedded into make flexure strip and locating piece looks joint in the location notch. The structure is simple, the elastic piece can be clamped with the positioning block, and the clamping and positioning are convenient.

In the above thread lifting and threading assembly of the sewing machine, the circumferential side wall of the positioning block is provided with an arc-shaped rotating part, and the rotating part is arranged close to the positioning notch. The rotating part is arc-shaped, so that the positioning block can rotate smoothly when rotating, the wire lifting and passing rack can rotate smoothly, the problem of clamping cannot exist, and the wire lifting and passing rack is convenient to turn over.

In foretell sewing machine's line assembly is crossed in carrying, reset button is including resetting a section of thick bamboo and wearing to establish the release link in resetting a section of thick bamboo, be equipped with reset spring between release link and the articulated frame, along the axial that resets a section of thick bamboo have the rectangular form guiding hole that is that runs through on the lateral wall of a section of thick bamboo that resets, the guide bar that has the protrusion to set up on the lateral wall of release link, the guide bar passes the guiding hole just the guide bar can remove along the guiding hole, the guide bar can press the outer end at the flexure strip and make the flexure strip warp. Under the effect of reset spring elasticity, the guide bar can push up and lean on a section of thick bamboo that resets, and the flexure strip is connected with the locating piece looks joint this moment, presses the release link and makes the release link overcome reset spring's elasticity, and the guide bar removes along the guiding hole and makes the guide bar push down the flexure strip, and the flexure strip breaks away from with the locating piece, and under the effect of torsional spring torsion, the line of lifting crosses the automatic upset of line frame.

In the thread lifting and passing assembly of the sewing machine, the hinge frame is provided with the positioning frame which is convexly arranged, the reset cylinder is embedded and fixed in the positioning frame, one end of the reset spring acts on the reset rod, and the other end of the reset spring acts on the positioning frame. The setting of locating frame is used for installing reset button, makes reset button simple to operate.

In foretell sewing machine's a line assembly is crossed in carrying line, the articulated frame is last to have the first locating hole of recessed setting, carry the line and cross the second locating hole that has recessed setting on the line frame, the one end of torsional spring can be embedded into in the first locating hole, the other end of torsional spring can be embedded into in the second locating hole. The first positioning port and the second positioning port play a role in positioning and improve the stability of the torsion spring, so that the wire lifting and passing rack can rotate smoothly, and the wire lifting and passing rack can rotate conveniently.

Compared with the prior art, the utility model provides a sewing machine's line of carrying crosses line assembly has following advantage:

1. when the wire lifting and passing assembly is used, an operator only needs to press the reset button, the problem of no starting from the lower hand does not exist, the operation is convenient, and the wire lifting and passing frame is convenient to turn.

2. This wire lifting and crossing assembly's wire lifting and crossing frame, flexure strip and reset button all install on articulated frame, can install in the aircraft nose after externally assembling in advance again, and the equipment is convenient.

Drawings

FIG. 1 is a view showing a state where the thread take-up and threading assembly of the sewing machine is closed.

FIG. 2 is a view showing the state of the thread take-up and threading assembly of the sewing machine when it is deployed.

FIG. 3 is a schematic view of the installation structure of the elastic piece and the reset button of the thread lifting and threading assembly of the sewing machine.

FIG. 4 is a cross-sectional view of the reset button of the thread take-up and threading assembly of the sewing machine.

In the figure, 1, a hinge frame; 11. a fixing strip; 12. a fixed part; 13. a positioning frame; 14. a first positioning port; 2. hinging a shaft; 3. lifting the wire and passing the wire frame; 31. a second positioning port; 4. a torsion spring; 5. an elastic sheet; 51. positioning the notch; 6. a reset button; 61. a reset cylinder; 62. a reset lever; 63. a return spring; 64. a guide hole; 65. a guide bar; 7. positioning blocks; 71. a positioning notch; 72. a rotating part.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

The sewing machine comprises a machine head and a thread lifting and passing assembly, wherein the thread lifting and passing assembly comprises a hinged frame 1, a hinged shaft 2, a thread lifting and passing frame 3, a torsion spring 4, an elastic sheet 5, a reset button 6 and a positioning block 7 as shown in figures 1 and 2.

Articulated frame 1 is fixed at the aircraft nose, wear to be equipped with articulated shaft 2 in articulated frame 1, articulated shaft 2 is last to have linked firmly to carry the line and crosses line frame 3, articulated frame 1 is last to have a first locating hole 14 of recessed setting, carry the line and cross second locating hole 31 that has recessed setting on

line frame

3, 4 covers of torsional spring are established on articulated shaft 2, the one end of torsional spring 4 can be embedded into first locating hole 14, the one end of torsional spring 4 is used in articulated frame 1, the other end of torsional spring 4 can be embedded into second locating hole 31, the other end of torsional spring 4 is used in carrying the line and crossing on line frame 3.

As shown in fig. 3, the hinge frame 1 has a protruding strip-shaped fixing strip 11, the outer end of the fixing strip 11 has a protruding fixing portion 12, the inner end of the elastic sheet 5 is fixedly connected to the fixing portion 12, and the outer end of the elastic sheet 5 is raised in suspension. As shown in fig. 4, the hinge frame 1 has a protruding positioning frame 13, the reset button 6 includes a reset cylinder 61 and a reset rod 62 inserted into the reset cylinder 61, the reset cylinder 61 is embedded and fixed in the positioning frame 13, a reset spring 63 is arranged between the reset rod 62 and the hinge frame 1, one end of the reset spring 63 acts on the reset rod 62, and the other end of the reset spring 63 acts on the positioning frame 13. The side wall of the reset cylinder 61 along the axial direction of the reset cylinder 61 is provided with a through elongated guide hole 64, the outer side wall of the reset rod 62 is provided with a protruding guide rod 65, the guide rod 65 passes through the guide hole 64 and the guide rod 65 can move along the guide hole 64, and the guide rod 65 can press the outer end of the elastic sheet 5 to deform the elastic sheet 5.

The outer end of the elastic sheet 5 is provided with a positioning notch 51 concavely arranged in a right angle shape, one end of the hinge shaft 2 is provided with a positioning block 7 convexly arranged, in the embodiment, the circumferential side wall of the positioning block 7 is provided with two positioning notches 71 concavely arranged, and in actual production, the number of the positioning notches 71 can be one or three. One side of the positioning notch 51 can be inserted into the positioning notch 71, so that the elastic sheet 5 and the positioning block 7 are clamped. The positioning block 7 has an arc-shaped rotating portion 72 on a circumferential side wall thereof, and the rotating portion 72 is disposed in close proximity to the positioning notch 71.

During the use, press release link 62, release link 62 moves down along a section of thick bamboo 61 that resets, and guide bar 65 moves down and pushes down the outer end of flexure strip 5 along guiding hole 64, and flexure strip 5 warp, and locating piece 7 breaks away from with flexure strip 5, and under the effect of torsional spring 4 torsion, the line of lifting crosses the rotation of line frame 3 around articulated shaft 2. When the return is performed, the operator rotates the wire lifting and passing frame 3 to rotate around the hinge shaft 2 to overcome the torsion of the torsion spring 4, so that the positioning block 7 is clamped with the elastic sheet 5.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms of the hinge frame 1, the fixing strip 11, the fixing portion 12, the positioning frame 13, the first positioning opening 14, the hinge shaft 2, the wire-lifting frame 3, the second positioning opening 31, the torsion spring 4, the elastic piece 5, the positioning notch 51, the reset button 6, the reset cylinder 61, the reset rod 62, the reset spring 63, the guide hole 64, the guide rod 65, the positioning block 7, the positioning notch 71, the rotating portion 72, etc. are used more frequently herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. The utility model provides a sewing machine's line assembly is crossed to line of carrying, sewing machine includes the aircraft nose, its characterized in that, and the line assembly is crossed to the line of carrying is including fixing articulated frame (1) on the aircraft nose, articulated through articulated shaft (2) on articulated frame (1) have line frame (3) are crossed to the line of carrying, the cover has torsional spring (4) just on articulated shaft (2) the one end of torsional spring (4) is used in articulated frame (1), the other end of torsional spring (4) is used in the line of carrying and crosses on line frame (3), still be equipped with flexure strip (5) and reset button (6) on articulated frame (1), the one end of articulated shaft (2) has locating piece (7) that the protrusion set up, locating piece (7) can make with flexure strip (5) looks joint the line is crossed line frame (3) location, reset button (6) can make flexure strip (5) and locating piece (7) break away from mutually.

2. The thread lifting and threading assembly of the sewing machine according to claim 1, wherein the hinged frame (1) is provided with a protruding fixing strip (11) in a long strip shape, the outer end of the fixing strip (11) is provided with a protruding fixing part (12), the inner end of the elastic sheet (5) is fixedly connected with the fixing part (12), the outer end of the elastic sheet (5) is arranged in a suspended and tilted manner, and the reset button (6) can be pressed at the outer end of the elastic sheet (5).

3. The thread lifting and threading assembly of the sewing machine according to claim 1 or 2, wherein the outer end of the elastic piece (5) is provided with a positioning notch (51) which is in a right-angle shape and is concavely arranged, the circumferential side wall of the positioning block (7) is provided with a plurality of positioning notches (71) which are concavely arranged, and one side of each positioning notch (51) can be embedded into each positioning notch (71) to enable the elastic piece (5) and the positioning block (7) to be clamped.

4. The thread take-up and threading assembly of a sewing machine according to claim 3, wherein the positioning block (7) has a curved rotating portion (72) on a circumferential side wall thereof, and the rotating portion (72) is disposed in close proximity to the positioning notch (71).

5. The thread lifting and threading assembly of the sewing machine according to claim 1 or 2, characterized in that the reset button (6) comprises a reset cylinder (61) and a reset rod (62) penetrating through the reset cylinder (61), a reset spring (63) is arranged between the reset rod (62) and the hinge bracket (1), a through elongated guide hole (64) is formed in the side wall of the reset cylinder (61) along the axial direction of the reset cylinder (61), a guide rod (65) protruding from the outer side wall of the reset rod (62), the guide rod (65) penetrates through the guide hole (64) and the guide rod (65) can move along the guide hole (64), and the guide rod (65) can press against the outer end of the elastic sheet (5) to deform the elastic sheet (5).

6. A thread lifting and threading assembly of a sewing machine according to claim 5, characterized in that the hinged frame (1) is provided with a protruding positioning frame (13), the reset cylinder (61) is embedded and fixed in the positioning frame (13), one end of the reset spring (63) acts on the reset rod (62), and the other end of the reset spring (63) acts on the positioning frame (13).

7. The thread lifting and threading assembly of the sewing machine according to claim 1 or 2, characterized in that the hinge frame (1) is provided with a first positioning opening (14) which is concavely arranged, the thread lifting and threading frame (3) is provided with a second positioning opening (31) which is concavely arranged, one end of the torsion spring (4) can be embedded into the first positioning opening (14), and the other end of the torsion spring (4) can be embedded into the second positioning opening (31).